mapbox.uncompressed.js 1.4 MB

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  1. (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
  2. function corslite(url, callback, cors) {
  3. var sent = false;
  4. if (typeof window.XMLHttpRequest === 'undefined') {
  5. return callback(Error('Browser not supported'));
  6. }
  7. if (typeof cors === 'undefined') {
  8. var m = url.match(/^\s*https?:\/\/[^\/]*/);
  9. cors = m && (m[0] !== location.protocol + '//' + location.domain +
  10. (location.port ? ':' + location.port : ''));
  11. }
  12. var x = new window.XMLHttpRequest();
  13. function isSuccessful(status) {
  14. return status >= 200 && status < 300 || status === 304;
  15. }
  16. if (cors && !('withCredentials' in x)) {
  17. // IE8-9
  18. x = new window.XDomainRequest();
  19. // Ensure callback is never called synchronously, i.e., before
  20. // x.send() returns (this has been observed in the wild).
  21. // See https://github.com/mapbox/mapbox.js/issues/472
  22. var original = callback;
  23. callback = function() {
  24. if (sent) {
  25. original.apply(this, arguments);
  26. } else {
  27. var that = this, args = arguments;
  28. setTimeout(function() {
  29. original.apply(that, args);
  30. }, 0);
  31. }
  32. }
  33. }
  34. function loaded() {
  35. if (
  36. // XDomainRequest
  37. x.status === undefined ||
  38. // modern browsers
  39. isSuccessful(x.status)) callback.call(x, null, x);
  40. else callback.call(x, x, null);
  41. }
  42. // Both `onreadystatechange` and `onload` can fire. `onreadystatechange`
  43. // has [been supported for longer](http://stackoverflow.com/a/9181508/229001).
  44. if ('onload' in x) {
  45. x.onload = loaded;
  46. } else {
  47. x.onreadystatechange = function readystate() {
  48. if (x.readyState === 4) {
  49. loaded();
  50. }
  51. };
  52. }
  53. // Call the callback with the XMLHttpRequest object as an error and prevent
  54. // it from ever being called again by reassigning it to `noop`
  55. x.onerror = function error(evt) {
  56. // XDomainRequest provides no evt parameter
  57. callback.call(this, evt || true, null);
  58. callback = function() { };
  59. };
  60. // IE9 must have onprogress be set to a unique function.
  61. x.onprogress = function() { };
  62. x.ontimeout = function(evt) {
  63. callback.call(this, evt, null);
  64. callback = function() { };
  65. };
  66. x.onabort = function(evt) {
  67. callback.call(this, evt, null);
  68. callback = function() { };
  69. };
  70. // GET is the only supported HTTP Verb by XDomainRequest and is the
  71. // only one supported here.
  72. x.open('GET', url, true);
  73. // Send the request. Sending data is not supported.
  74. x.send(null);
  75. sent = true;
  76. return x;
  77. }
  78. if (typeof module !== 'undefined') module.exports = corslite;
  79. },{}],2:[function(require,module,exports){
  80. module.exports = Array.isArray || function (arr) {
  81. return Object.prototype.toString.call(arr) == '[object Array]';
  82. };
  83. },{}],3:[function(require,module,exports){
  84. /*
  85. Leaflet 1.0.2, a JS library for interactive maps. http://leafletjs.com
  86. (c) 2010-2016 Vladimir Agafonkin, (c) 2010-2011 CloudMade
  87. */
  88. (function (window, document, undefined) {
  89. var L = {
  90. version: "1.0.2"
  91. };
  92. function expose() {
  93. var oldL = window.L;
  94. L.noConflict = function () {
  95. window.L = oldL;
  96. return this;
  97. };
  98. window.L = L;
  99. }
  100. // define Leaflet for Node module pattern loaders, including Browserify
  101. if (typeof module === 'object' && typeof module.exports === 'object') {
  102. module.exports = L;
  103. // define Leaflet as an AMD module
  104. } else if (typeof define === 'function' && define.amd) {
  105. define(L);
  106. }
  107. // define Leaflet as a global L variable, saving the original L to restore later if needed
  108. if (typeof window !== 'undefined') {
  109. expose();
  110. }
  111. /*
  112. * @namespace Util
  113. *
  114. * Various utility functions, used by Leaflet internally.
  115. */
  116. L.Util = {
  117. // @function extend(dest: Object, src?: Object): Object
  118. // Merges the properties of the `src` object (or multiple objects) into `dest` object and returns the latter. Has an `L.extend` shortcut.
  119. extend: function (dest) {
  120. var i, j, len, src;
  121. for (j = 1, len = arguments.length; j < len; j++) {
  122. src = arguments[j];
  123. for (i in src) {
  124. dest[i] = src[i];
  125. }
  126. }
  127. return dest;
  128. },
  129. // @function create(proto: Object, properties?: Object): Object
  130. // Compatibility polyfill for [Object.create](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create)
  131. create: Object.create || (function () {
  132. function F() {}
  133. return function (proto) {
  134. F.prototype = proto;
  135. return new F();
  136. };
  137. })(),
  138. // @function bind(fn: Function, …): Function
  139. // Returns a new function bound to the arguments passed, like [Function.prototype.bind](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind).
  140. // Has a `L.bind()` shortcut.
  141. bind: function (fn, obj) {
  142. var slice = Array.prototype.slice;
  143. if (fn.bind) {
  144. return fn.bind.apply(fn, slice.call(arguments, 1));
  145. }
  146. var args = slice.call(arguments, 2);
  147. return function () {
  148. return fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments);
  149. };
  150. },
  151. // @function stamp(obj: Object): Number
  152. // Returns the unique ID of an object, assiging it one if it doesn't have it.
  153. stamp: function (obj) {
  154. /*eslint-disable */
  155. obj._leaflet_id = obj._leaflet_id || ++L.Util.lastId;
  156. return obj._leaflet_id;
  157. /*eslint-enable */
  158. },
  159. // @property lastId: Number
  160. // Last unique ID used by [`stamp()`](#util-stamp)
  161. lastId: 0,
  162. // @function throttle(fn: Function, time: Number, context: Object): Function
  163. // Returns a function which executes function `fn` with the given scope `context`
  164. // (so that the `this` keyword refers to `context` inside `fn`'s code). The function
  165. // `fn` will be called no more than one time per given amount of `time`. The arguments
  166. // received by the bound function will be any arguments passed when binding the
  167. // function, followed by any arguments passed when invoking the bound function.
  168. // Has an `L.bind` shortcut.
  169. throttle: function (fn, time, context) {
  170. var lock, args, wrapperFn, later;
  171. later = function () {
  172. // reset lock and call if queued
  173. lock = false;
  174. if (args) {
  175. wrapperFn.apply(context, args);
  176. args = false;
  177. }
  178. };
  179. wrapperFn = function () {
  180. if (lock) {
  181. // called too soon, queue to call later
  182. args = arguments;
  183. } else {
  184. // call and lock until later
  185. fn.apply(context, arguments);
  186. setTimeout(later, time);
  187. lock = true;
  188. }
  189. };
  190. return wrapperFn;
  191. },
  192. // @function wrapNum(num: Number, range: Number[], includeMax?: Boolean): Number
  193. // Returns the number `num` modulo `range` in such a way so it lies within
  194. // `range[0]` and `range[1]`. The returned value will be always smaller than
  195. // `range[1]` unless `includeMax` is set to `true`.
  196. wrapNum: function (x, range, includeMax) {
  197. var max = range[1],
  198. min = range[0],
  199. d = max - min;
  200. return x === max && includeMax ? x : ((x - min) % d + d) % d + min;
  201. },
  202. // @function falseFn(): Function
  203. // Returns a function which always returns `false`.
  204. falseFn: function () { return false; },
  205. // @function formatNum(num: Number, digits?: Number): Number
  206. // Returns the number `num` rounded to `digits` decimals, or to 5 decimals by default.
  207. formatNum: function (num, digits) {
  208. var pow = Math.pow(10, digits || 5);
  209. return Math.round(num * pow) / pow;
  210. },
  211. // @function trim(str: String): String
  212. // Compatibility polyfill for [String.prototype.trim](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)
  213. trim: function (str) {
  214. return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
  215. },
  216. // @function splitWords(str: String): String[]
  217. // Trims and splits the string on whitespace and returns the array of parts.
  218. splitWords: function (str) {
  219. return L.Util.trim(str).split(/\s+/);
  220. },
  221. // @function setOptions(obj: Object, options: Object): Object
  222. // Merges the given properties to the `options` of the `obj` object, returning the resulting options. See `Class options`. Has an `L.setOptions` shortcut.
  223. setOptions: function (obj, options) {
  224. if (!obj.hasOwnProperty('options')) {
  225. obj.options = obj.options ? L.Util.create(obj.options) : {};
  226. }
  227. for (var i in options) {
  228. obj.options[i] = options[i];
  229. }
  230. return obj.options;
  231. },
  232. // @function getParamString(obj: Object, existingUrl?: String, uppercase?: Boolean): String
  233. // Converts an object into a parameter URL string, e.g. `{a: "foo", b: "bar"}`
  234. // translates to `'?a=foo&b=bar'`. If `existingUrl` is set, the parameters will
  235. // be appended at the end. If `uppercase` is `true`, the parameter names will
  236. // be uppercased (e.g. `'?A=foo&B=bar'`)
  237. getParamString: function (obj, existingUrl, uppercase) {
  238. var params = [];
  239. for (var i in obj) {
  240. params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
  241. }
  242. return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
  243. },
  244. // @function template(str: String, data: Object): String
  245. // Simple templating facility, accepts a template string of the form `'Hello {a}, {b}'`
  246. // and a data object like `{a: 'foo', b: 'bar'}`, returns evaluated string
  247. // `('Hello foo, bar')`. You can also specify functions instead of strings for
  248. // data values — they will be evaluated passing `data` as an argument.
  249. template: function (str, data) {
  250. return str.replace(L.Util.templateRe, function (str, key) {
  251. var value = data[key];
  252. if (value === undefined) {
  253. throw new Error('No value provided for variable ' + str);
  254. } else if (typeof value === 'function') {
  255. value = value(data);
  256. }
  257. return value;
  258. });
  259. },
  260. templateRe: /\{ *([\w_\-]+) *\}/g,
  261. // @function isArray(obj): Boolean
  262. // Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray)
  263. isArray: Array.isArray || function (obj) {
  264. return (Object.prototype.toString.call(obj) === '[object Array]');
  265. },
  266. // @function indexOf(array: Array, el: Object): Number
  267. // Compatibility polyfill for [Array.prototype.indexOf](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf)
  268. indexOf: function (array, el) {
  269. for (var i = 0; i < array.length; i++) {
  270. if (array[i] === el) { return i; }
  271. }
  272. return -1;
  273. },
  274. // @property emptyImageUrl: String
  275. // Data URI string containing a base64-encoded empty GIF image.
  276. // Used as a hack to free memory from unused images on WebKit-powered
  277. // mobile devices (by setting image `src` to this string).
  278. emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
  279. };
  280. (function () {
  281. // inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/
  282. function getPrefixed(name) {
  283. return window['webkit' + name] || window['moz' + name] || window['ms' + name];
  284. }
  285. var lastTime = 0;
  286. // fallback for IE 7-8
  287. function timeoutDefer(fn) {
  288. var time = +new Date(),
  289. timeToCall = Math.max(0, 16 - (time - lastTime));
  290. lastTime = time + timeToCall;
  291. return window.setTimeout(fn, timeToCall);
  292. }
  293. var requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer,
  294. cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') ||
  295. getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); };
  296. // @function requestAnimFrame(fn: Function, context?: Object, immediate?: Boolean): Number
  297. // Schedules `fn` to be executed when the browser repaints. `fn` is bound to
  298. // `context` if given. When `immediate` is set, `fn` is called immediately if
  299. // the browser doesn't have native support for
  300. // [`window.requestAnimationFrame`](https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame),
  301. // otherwise it's delayed. Returns a request ID that can be used to cancel the request.
  302. L.Util.requestAnimFrame = function (fn, context, immediate) {
  303. if (immediate && requestFn === timeoutDefer) {
  304. fn.call(context);
  305. } else {
  306. return requestFn.call(window, L.bind(fn, context));
  307. }
  308. };
  309. // @function cancelAnimFrame(id: Number): undefined
  310. // Cancels a previous `requestAnimFrame`. See also [window.cancelAnimationFrame](https://developer.mozilla.org/docs/Web/API/window/cancelAnimationFrame).
  311. L.Util.cancelAnimFrame = function (id) {
  312. if (id) {
  313. cancelFn.call(window, id);
  314. }
  315. };
  316. })();
  317. // shortcuts for most used utility functions
  318. L.extend = L.Util.extend;
  319. L.bind = L.Util.bind;
  320. L.stamp = L.Util.stamp;
  321. L.setOptions = L.Util.setOptions;
  322. // @class Class
  323. // @aka L.Class
  324. // @section
  325. // @uninheritable
  326. // Thanks to John Resig and Dean Edwards for inspiration!
  327. L.Class = function () {};
  328. L.Class.extend = function (props) {
  329. // @function extend(props: Object): Function
  330. // [Extends the current class](#class-inheritance) given the properties to be included.
  331. // Returns a Javascript function that is a class constructor (to be called with `new`).
  332. var NewClass = function () {
  333. // call the constructor
  334. if (this.initialize) {
  335. this.initialize.apply(this, arguments);
  336. }
  337. // call all constructor hooks
  338. this.callInitHooks();
  339. };
  340. var parentProto = NewClass.__super__ = this.prototype;
  341. var proto = L.Util.create(parentProto);
  342. proto.constructor = NewClass;
  343. NewClass.prototype = proto;
  344. // inherit parent's statics
  345. for (var i in this) {
  346. if (this.hasOwnProperty(i) && i !== 'prototype') {
  347. NewClass[i] = this[i];
  348. }
  349. }
  350. // mix static properties into the class
  351. if (props.statics) {
  352. L.extend(NewClass, props.statics);
  353. delete props.statics;
  354. }
  355. // mix includes into the prototype
  356. if (props.includes) {
  357. L.Util.extend.apply(null, [proto].concat(props.includes));
  358. delete props.includes;
  359. }
  360. // merge options
  361. if (proto.options) {
  362. props.options = L.Util.extend(L.Util.create(proto.options), props.options);
  363. }
  364. // mix given properties into the prototype
  365. L.extend(proto, props);
  366. proto._initHooks = [];
  367. // add method for calling all hooks
  368. proto.callInitHooks = function () {
  369. if (this._initHooksCalled) { return; }
  370. if (parentProto.callInitHooks) {
  371. parentProto.callInitHooks.call(this);
  372. }
  373. this._initHooksCalled = true;
  374. for (var i = 0, len = proto._initHooks.length; i < len; i++) {
  375. proto._initHooks[i].call(this);
  376. }
  377. };
  378. return NewClass;
  379. };
  380. // @function include(properties: Object): this
  381. // [Includes a mixin](#class-includes) into the current class.
  382. L.Class.include = function (props) {
  383. L.extend(this.prototype, props);
  384. return this;
  385. };
  386. // @function mergeOptions(options: Object): this
  387. // [Merges `options`](#class-options) into the defaults of the class.
  388. L.Class.mergeOptions = function (options) {
  389. L.extend(this.prototype.options, options);
  390. return this;
  391. };
  392. // @function addInitHook(fn: Function): this
  393. // Adds a [constructor hook](#class-constructor-hooks) to the class.
  394. L.Class.addInitHook = function (fn) { // (Function) || (String, args...)
  395. var args = Array.prototype.slice.call(arguments, 1);
  396. var init = typeof fn === 'function' ? fn : function () {
  397. this[fn].apply(this, args);
  398. };
  399. this.prototype._initHooks = this.prototype._initHooks || [];
  400. this.prototype._initHooks.push(init);
  401. return this;
  402. };
  403. /*
  404. * @class Evented
  405. * @aka L.Evented
  406. * @inherits Class
  407. *
  408. * A set of methods shared between event-powered classes (like `Map` and `Marker`). Generally, events allow you to execute some function when something happens with an object (e.g. the user clicks on the map, causing the map to fire `'click'` event).
  409. *
  410. * @example
  411. *
  412. * ```js
  413. * map.on('click', function(e) {
  414. * alert(e.latlng);
  415. * } );
  416. * ```
  417. *
  418. * Leaflet deals with event listeners by reference, so if you want to add a listener and then remove it, define it as a function:
  419. *
  420. * ```js
  421. * function onClick(e) { ... }
  422. *
  423. * map.on('click', onClick);
  424. * map.off('click', onClick);
  425. * ```
  426. */
  427. L.Evented = L.Class.extend({
  428. /* @method on(type: String, fn: Function, context?: Object): this
  429. * Adds a listener function (`fn`) to a particular event type of the object. You can optionally specify the context of the listener (object the this keyword will point to). You can also pass several space-separated types (e.g. `'click dblclick'`).
  430. *
  431. * @alternative
  432. * @method on(eventMap: Object): this
  433. * Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`
  434. */
  435. on: function (types, fn, context) {
  436. // types can be a map of types/handlers
  437. if (typeof types === 'object') {
  438. for (var type in types) {
  439. // we don't process space-separated events here for performance;
  440. // it's a hot path since Layer uses the on(obj) syntax
  441. this._on(type, types[type], fn);
  442. }
  443. } else {
  444. // types can be a string of space-separated words
  445. types = L.Util.splitWords(types);
  446. for (var i = 0, len = types.length; i < len; i++) {
  447. this._on(types[i], fn, context);
  448. }
  449. }
  450. return this;
  451. },
  452. /* @method off(type: String, fn?: Function, context?: Object): this
  453. * Removes a previously added listener function. If no function is specified, it will remove all the listeners of that particular event from the object. Note that if you passed a custom context to `on`, you must pass the same context to `off` in order to remove the listener.
  454. *
  455. * @alternative
  456. * @method off(eventMap: Object): this
  457. * Removes a set of type/listener pairs.
  458. *
  459. * @alternative
  460. * @method off: this
  461. * Removes all listeners to all events on the object.
  462. */
  463. off: function (types, fn, context) {
  464. if (!types) {
  465. // clear all listeners if called without arguments
  466. delete this._events;
  467. } else if (typeof types === 'object') {
  468. for (var type in types) {
  469. this._off(type, types[type], fn);
  470. }
  471. } else {
  472. types = L.Util.splitWords(types);
  473. for (var i = 0, len = types.length; i < len; i++) {
  474. this._off(types[i], fn, context);
  475. }
  476. }
  477. return this;
  478. },
  479. // attach listener (without syntactic sugar now)
  480. _on: function (type, fn, context) {
  481. this._events = this._events || {};
  482. /* get/init listeners for type */
  483. var typeListeners = this._events[type];
  484. if (!typeListeners) {
  485. typeListeners = [];
  486. this._events[type] = typeListeners;
  487. }
  488. if (context === this) {
  489. // Less memory footprint.
  490. context = undefined;
  491. }
  492. var newListener = {fn: fn, ctx: context},
  493. listeners = typeListeners;
  494. // check if fn already there
  495. for (var i = 0, len = listeners.length; i < len; i++) {
  496. if (listeners[i].fn === fn && listeners[i].ctx === context) {
  497. return;
  498. }
  499. }
  500. listeners.push(newListener);
  501. typeListeners.count++;
  502. },
  503. _off: function (type, fn, context) {
  504. var listeners,
  505. i,
  506. len;
  507. if (!this._events) { return; }
  508. listeners = this._events[type];
  509. if (!listeners) {
  510. return;
  511. }
  512. if (!fn) {
  513. // Set all removed listeners to noop so they are not called if remove happens in fire
  514. for (i = 0, len = listeners.length; i < len; i++) {
  515. listeners[i].fn = L.Util.falseFn;
  516. }
  517. // clear all listeners for a type if function isn't specified
  518. delete this._events[type];
  519. return;
  520. }
  521. if (context === this) {
  522. context = undefined;
  523. }
  524. if (listeners) {
  525. // find fn and remove it
  526. for (i = 0, len = listeners.length; i < len; i++) {
  527. var l = listeners[i];
  528. if (l.ctx !== context) { continue; }
  529. if (l.fn === fn) {
  530. // set the removed listener to noop so that's not called if remove happens in fire
  531. l.fn = L.Util.falseFn;
  532. if (this._firingCount) {
  533. /* copy array in case events are being fired */
  534. this._events[type] = listeners = listeners.slice();
  535. }
  536. listeners.splice(i, 1);
  537. return;
  538. }
  539. }
  540. }
  541. },
  542. // @method fire(type: String, data?: Object, propagate?: Boolean): this
  543. // Fires an event of the specified type. You can optionally provide an data
  544. // object — the first argument of the listener function will contain its
  545. // properties. The event can optionally be propagated to event parents.
  546. fire: function (type, data, propagate) {
  547. if (!this.listens(type, propagate)) { return this; }
  548. var event = L.Util.extend({}, data, {type: type, target: this});
  549. if (this._events) {
  550. var listeners = this._events[type];
  551. if (listeners) {
  552. this._firingCount = (this._firingCount + 1) || 1;
  553. for (var i = 0, len = listeners.length; i < len; i++) {
  554. var l = listeners[i];
  555. l.fn.call(l.ctx || this, event);
  556. }
  557. this._firingCount--;
  558. }
  559. }
  560. if (propagate) {
  561. // propagate the event to parents (set with addEventParent)
  562. this._propagateEvent(event);
  563. }
  564. return this;
  565. },
  566. // @method listens(type: String): Boolean
  567. // Returns `true` if a particular event type has any listeners attached to it.
  568. listens: function (type, propagate) {
  569. var listeners = this._events && this._events[type];
  570. if (listeners && listeners.length) { return true; }
  571. if (propagate) {
  572. // also check parents for listeners if event propagates
  573. for (var id in this._eventParents) {
  574. if (this._eventParents[id].listens(type, propagate)) { return true; }
  575. }
  576. }
  577. return false;
  578. },
  579. // @method once(…): this
  580. // Behaves as [`on(…)`](#evented-on), except the listener will only get fired once and then removed.
  581. once: function (types, fn, context) {
  582. if (typeof types === 'object') {
  583. for (var type in types) {
  584. this.once(type, types[type], fn);
  585. }
  586. return this;
  587. }
  588. var handler = L.bind(function () {
  589. this
  590. .off(types, fn, context)
  591. .off(types, handler, context);
  592. }, this);
  593. // add a listener that's executed once and removed after that
  594. return this
  595. .on(types, fn, context)
  596. .on(types, handler, context);
  597. },
  598. // @method addEventParent(obj: Evented): this
  599. // Adds an event parent - an `Evented` that will receive propagated events
  600. addEventParent: function (obj) {
  601. this._eventParents = this._eventParents || {};
  602. this._eventParents[L.stamp(obj)] = obj;
  603. return this;
  604. },
  605. // @method removeEventParent(obj: Evented): this
  606. // Removes an event parent, so it will stop receiving propagated events
  607. removeEventParent: function (obj) {
  608. if (this._eventParents) {
  609. delete this._eventParents[L.stamp(obj)];
  610. }
  611. return this;
  612. },
  613. _propagateEvent: function (e) {
  614. for (var id in this._eventParents) {
  615. this._eventParents[id].fire(e.type, L.extend({layer: e.target}, e), true);
  616. }
  617. }
  618. });
  619. var proto = L.Evented.prototype;
  620. // aliases; we should ditch those eventually
  621. // @method addEventListener(…): this
  622. // Alias to [`on(…)`](#evented-on)
  623. proto.addEventListener = proto.on;
  624. // @method removeEventListener(…): this
  625. // Alias to [`off(…)`](#evented-off)
  626. // @method clearAllEventListeners(…): this
  627. // Alias to [`off()`](#evented-off)
  628. proto.removeEventListener = proto.clearAllEventListeners = proto.off;
  629. // @method addOneTimeEventListener(…): this
  630. // Alias to [`once(…)`](#evented-once)
  631. proto.addOneTimeEventListener = proto.once;
  632. // @method fireEvent(…): this
  633. // Alias to [`fire(…)`](#evented-fire)
  634. proto.fireEvent = proto.fire;
  635. // @method hasEventListeners(…): Boolean
  636. // Alias to [`listens(…)`](#evented-listens)
  637. proto.hasEventListeners = proto.listens;
  638. L.Mixin = {Events: proto};
  639. /*
  640. * @namespace Browser
  641. * @aka L.Browser
  642. *
  643. * A namespace with static properties for browser/feature detection used by Leaflet internally.
  644. *
  645. * @example
  646. *
  647. * ```js
  648. * if (L.Browser.ielt9) {
  649. * alert('Upgrade your browser, dude!');
  650. * }
  651. * ```
  652. */
  653. (function () {
  654. var ua = navigator.userAgent.toLowerCase(),
  655. doc = document.documentElement,
  656. ie = 'ActiveXObject' in window,
  657. webkit = ua.indexOf('webkit') !== -1,
  658. phantomjs = ua.indexOf('phantom') !== -1,
  659. android23 = ua.search('android [23]') !== -1,
  660. chrome = ua.indexOf('chrome') !== -1,
  661. gecko = ua.indexOf('gecko') !== -1 && !webkit && !window.opera && !ie,
  662. win = navigator.platform.indexOf('Win') === 0,
  663. mobile = typeof orientation !== 'undefined' || ua.indexOf('mobile') !== -1,
  664. msPointer = !window.PointerEvent && window.MSPointerEvent,
  665. pointer = window.PointerEvent || msPointer,
  666. ie3d = ie && ('transition' in doc.style),
  667. webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,
  668. gecko3d = 'MozPerspective' in doc.style,
  669. opera12 = 'OTransition' in doc.style;
  670. var touch = !window.L_NO_TOUCH && (pointer || 'ontouchstart' in window ||
  671. (window.DocumentTouch && document instanceof window.DocumentTouch));
  672. L.Browser = {
  673. // @property ie: Boolean
  674. // `true` for all Internet Explorer versions (not Edge).
  675. ie: ie,
  676. // @property ielt9: Boolean
  677. // `true` for Internet Explorer versions less than 9.
  678. ielt9: ie && !document.addEventListener,
  679. // @property edge: Boolean
  680. // `true` for the Edge web browser.
  681. edge: 'msLaunchUri' in navigator && !('documentMode' in document),
  682. // @property webkit: Boolean
  683. // `true` for webkit-based browsers like Chrome and Safari (including mobile versions).
  684. webkit: webkit,
  685. // @property gecko: Boolean
  686. // `true` for gecko-based browsers like Firefox.
  687. gecko: gecko,
  688. // @property android: Boolean
  689. // `true` for any browser running on an Android platform.
  690. android: ua.indexOf('android') !== -1,
  691. // @property android23: Boolean
  692. // `true` for browsers running on Android 2 or Android 3.
  693. android23: android23,
  694. // @property chrome: Boolean
  695. // `true` for the Chrome browser.
  696. chrome: chrome,
  697. // @property safari: Boolean
  698. // `true` for the Safari browser.
  699. safari: !chrome && ua.indexOf('safari') !== -1,
  700. // @property win: Boolean
  701. // `true` when the browser is running in a Windows platform
  702. win: win,
  703. // @property ie3d: Boolean
  704. // `true` for all Internet Explorer versions supporting CSS transforms.
  705. ie3d: ie3d,
  706. // @property webkit3d: Boolean
  707. // `true` for webkit-based browsers supporting CSS transforms.
  708. webkit3d: webkit3d,
  709. // @property gecko3d: Boolean
  710. // `true` for gecko-based browsers supporting CSS transforms.
  711. gecko3d: gecko3d,
  712. // @property opera12: Boolean
  713. // `true` for the Opera browser supporting CSS transforms (version 12 or later).
  714. opera12: opera12,
  715. // @property any3d: Boolean
  716. // `true` for all browsers supporting CSS transforms.
  717. any3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantomjs,
  718. // @property mobile: Boolean
  719. // `true` for all browsers running in a mobile device.
  720. mobile: mobile,
  721. // @property mobileWebkit: Boolean
  722. // `true` for all webkit-based browsers in a mobile device.
  723. mobileWebkit: mobile && webkit,
  724. // @property mobileWebkit3d: Boolean
  725. // `true` for all webkit-based browsers in a mobile device supporting CSS transforms.
  726. mobileWebkit3d: mobile && webkit3d,
  727. // @property mobileOpera: Boolean
  728. // `true` for the Opera browser in a mobile device.
  729. mobileOpera: mobile && window.opera,
  730. // @property mobileGecko: Boolean
  731. // `true` for gecko-based browsers running in a mobile device.
  732. mobileGecko: mobile && gecko,
  733. // @property touch: Boolean
  734. // `true` for all browsers supporting [touch events](https://developer.mozilla.org/docs/Web/API/Touch_events).
  735. touch: !!touch,
  736. // @property msPointer: Boolean
  737. // `true` for browsers implementing the Microsoft touch events model (notably IE10).
  738. msPointer: !!msPointer,
  739. // @property pointer: Boolean
  740. // `true` for all browsers supporting [pointer events](https://msdn.microsoft.com/en-us/library/dn433244%28v=vs.85%29.aspx).
  741. pointer: !!pointer,
  742. // @property retina: Boolean
  743. // `true` for browsers on a high-resolution "retina" screen.
  744. retina: (window.devicePixelRatio || (window.screen.deviceXDPI / window.screen.logicalXDPI)) > 1
  745. };
  746. }());
  747. /*
  748. * @class Point
  749. * @aka L.Point
  750. *
  751. * Represents a point with `x` and `y` coordinates in pixels.
  752. *
  753. * @example
  754. *
  755. * ```js
  756. * var point = L.point(200, 300);
  757. * ```
  758. *
  759. * All Leaflet methods and options that accept `Point` objects also accept them in a simple Array form (unless noted otherwise), so these lines are equivalent:
  760. *
  761. * ```js
  762. * map.panBy([200, 300]);
  763. * map.panBy(L.point(200, 300));
  764. * ```
  765. */
  766. L.Point = function (x, y, round) {
  767. // @property x: Number; The `x` coordinate of the point
  768. this.x = (round ? Math.round(x) : x);
  769. // @property y: Number; The `y` coordinate of the point
  770. this.y = (round ? Math.round(y) : y);
  771. };
  772. L.Point.prototype = {
  773. // @method clone(): Point
  774. // Returns a copy of the current point.
  775. clone: function () {
  776. return new L.Point(this.x, this.y);
  777. },
  778. // @method add(otherPoint: Point): Point
  779. // Returns the result of addition of the current and the given points.
  780. add: function (point) {
  781. // non-destructive, returns a new point
  782. return this.clone()._add(L.point(point));
  783. },
  784. _add: function (point) {
  785. // destructive, used directly for performance in situations where it's safe to modify existing point
  786. this.x += point.x;
  787. this.y += point.y;
  788. return this;
  789. },
  790. // @method subtract(otherPoint: Point): Point
  791. // Returns the result of subtraction of the given point from the current.
  792. subtract: function (point) {
  793. return this.clone()._subtract(L.point(point));
  794. },
  795. _subtract: function (point) {
  796. this.x -= point.x;
  797. this.y -= point.y;
  798. return this;
  799. },
  800. // @method divideBy(num: Number): Point
  801. // Returns the result of division of the current point by the given number.
  802. divideBy: function (num) {
  803. return this.clone()._divideBy(num);
  804. },
  805. _divideBy: function (num) {
  806. this.x /= num;
  807. this.y /= num;
  808. return this;
  809. },
  810. // @method multiplyBy(num: Number): Point
  811. // Returns the result of multiplication of the current point by the given number.
  812. multiplyBy: function (num) {
  813. return this.clone()._multiplyBy(num);
  814. },
  815. _multiplyBy: function (num) {
  816. this.x *= num;
  817. this.y *= num;
  818. return this;
  819. },
  820. // @method scaleBy(scale: Point): Point
  821. // Multiply each coordinate of the current point by each coordinate of
  822. // `scale`. In linear algebra terms, multiply the point by the
  823. // [scaling matrix](https://en.wikipedia.org/wiki/Scaling_%28geometry%29#Matrix_representation)
  824. // defined by `scale`.
  825. scaleBy: function (point) {
  826. return new L.Point(this.x * point.x, this.y * point.y);
  827. },
  828. // @method unscaleBy(scale: Point): Point
  829. // Inverse of `scaleBy`. Divide each coordinate of the current point by
  830. // each coordinate of `scale`.
  831. unscaleBy: function (point) {
  832. return new L.Point(this.x / point.x, this.y / point.y);
  833. },
  834. // @method round(): Point
  835. // Returns a copy of the current point with rounded coordinates.
  836. round: function () {
  837. return this.clone()._round();
  838. },
  839. _round: function () {
  840. this.x = Math.round(this.x);
  841. this.y = Math.round(this.y);
  842. return this;
  843. },
  844. // @method floor(): Point
  845. // Returns a copy of the current point with floored coordinates (rounded down).
  846. floor: function () {
  847. return this.clone()._floor();
  848. },
  849. _floor: function () {
  850. this.x = Math.floor(this.x);
  851. this.y = Math.floor(this.y);
  852. return this;
  853. },
  854. // @method ceil(): Point
  855. // Returns a copy of the current point with ceiled coordinates (rounded up).
  856. ceil: function () {
  857. return this.clone()._ceil();
  858. },
  859. _ceil: function () {
  860. this.x = Math.ceil(this.x);
  861. this.y = Math.ceil(this.y);
  862. return this;
  863. },
  864. // @method distanceTo(otherPoint: Point): Number
  865. // Returns the cartesian distance between the current and the given points.
  866. distanceTo: function (point) {
  867. point = L.point(point);
  868. var x = point.x - this.x,
  869. y = point.y - this.y;
  870. return Math.sqrt(x * x + y * y);
  871. },
  872. // @method equals(otherPoint: Point): Boolean
  873. // Returns `true` if the given point has the same coordinates.
  874. equals: function (point) {
  875. point = L.point(point);
  876. return point.x === this.x &&
  877. point.y === this.y;
  878. },
  879. // @method contains(otherPoint: Point): Boolean
  880. // Returns `true` if both coordinates of the given point are less than the corresponding current point coordinates (in absolute values).
  881. contains: function (point) {
  882. point = L.point(point);
  883. return Math.abs(point.x) <= Math.abs(this.x) &&
  884. Math.abs(point.y) <= Math.abs(this.y);
  885. },
  886. // @method toString(): String
  887. // Returns a string representation of the point for debugging purposes.
  888. toString: function () {
  889. return 'Point(' +
  890. L.Util.formatNum(this.x) + ', ' +
  891. L.Util.formatNum(this.y) + ')';
  892. }
  893. };
  894. // @factory L.point(x: Number, y: Number, round?: Boolean)
  895. // Creates a Point object with the given `x` and `y` coordinates. If optional `round` is set to true, rounds the `x` and `y` values.
  896. // @alternative
  897. // @factory L.point(coords: Number[])
  898. // Expects an array of the form `[x, y]` instead.
  899. // @alternative
  900. // @factory L.point(coords: Object)
  901. // Expects a plain object of the form `{x: Number, y: Number}` instead.
  902. L.point = function (x, y, round) {
  903. if (x instanceof L.Point) {
  904. return x;
  905. }
  906. if (L.Util.isArray(x)) {
  907. return new L.Point(x[0], x[1]);
  908. }
  909. if (x === undefined || x === null) {
  910. return x;
  911. }
  912. if (typeof x === 'object' && 'x' in x && 'y' in x) {
  913. return new L.Point(x.x, x.y);
  914. }
  915. return new L.Point(x, y, round);
  916. };
  917. /*
  918. * @class Bounds
  919. * @aka L.Bounds
  920. *
  921. * Represents a rectangular area in pixel coordinates.
  922. *
  923. * @example
  924. *
  925. * ```js
  926. * var p1 = L.point(10, 10),
  927. * p2 = L.point(40, 60),
  928. * bounds = L.bounds(p1, p2);
  929. * ```
  930. *
  931. * All Leaflet methods that accept `Bounds` objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:
  932. *
  933. * ```js
  934. * otherBounds.intersects([[10, 10], [40, 60]]);
  935. * ```
  936. */
  937. L.Bounds = function (a, b) {
  938. if (!a) { return; }
  939. var points = b ? [a, b] : a;
  940. for (var i = 0, len = points.length; i < len; i++) {
  941. this.extend(points[i]);
  942. }
  943. };
  944. L.Bounds.prototype = {
  945. // @method extend(point: Point): this
  946. // Extends the bounds to contain the given point.
  947. extend: function (point) { // (Point)
  948. point = L.point(point);
  949. // @property min: Point
  950. // The top left corner of the rectangle.
  951. // @property max: Point
  952. // The bottom right corner of the rectangle.
  953. if (!this.min && !this.max) {
  954. this.min = point.clone();
  955. this.max = point.clone();
  956. } else {
  957. this.min.x = Math.min(point.x, this.min.x);
  958. this.max.x = Math.max(point.x, this.max.x);
  959. this.min.y = Math.min(point.y, this.min.y);
  960. this.max.y = Math.max(point.y, this.max.y);
  961. }
  962. return this;
  963. },
  964. // @method getCenter(round?: Boolean): Point
  965. // Returns the center point of the bounds.
  966. getCenter: function (round) {
  967. return new L.Point(
  968. (this.min.x + this.max.x) / 2,
  969. (this.min.y + this.max.y) / 2, round);
  970. },
  971. // @method getBottomLeft(): Point
  972. // Returns the bottom-left point of the bounds.
  973. getBottomLeft: function () {
  974. return new L.Point(this.min.x, this.max.y);
  975. },
  976. // @method getTopRight(): Point
  977. // Returns the top-right point of the bounds.
  978. getTopRight: function () { // -> Point
  979. return new L.Point(this.max.x, this.min.y);
  980. },
  981. // @method getSize(): Point
  982. // Returns the size of the given bounds
  983. getSize: function () {
  984. return this.max.subtract(this.min);
  985. },
  986. // @method contains(otherBounds: Bounds): Boolean
  987. // Returns `true` if the rectangle contains the given one.
  988. // @alternative
  989. // @method contains(point: Point): Boolean
  990. // Returns `true` if the rectangle contains the given point.
  991. contains: function (obj) {
  992. var min, max;
  993. if (typeof obj[0] === 'number' || obj instanceof L.Point) {
  994. obj = L.point(obj);
  995. } else {
  996. obj = L.bounds(obj);
  997. }
  998. if (obj instanceof L.Bounds) {
  999. min = obj.min;
  1000. max = obj.max;
  1001. } else {
  1002. min = max = obj;
  1003. }
  1004. return (min.x >= this.min.x) &&
  1005. (max.x <= this.max.x) &&
  1006. (min.y >= this.min.y) &&
  1007. (max.y <= this.max.y);
  1008. },
  1009. // @method intersects(otherBounds: Bounds): Boolean
  1010. // Returns `true` if the rectangle intersects the given bounds. Two bounds
  1011. // intersect if they have at least one point in common.
  1012. intersects: function (bounds) { // (Bounds) -> Boolean
  1013. bounds = L.bounds(bounds);
  1014. var min = this.min,
  1015. max = this.max,
  1016. min2 = bounds.min,
  1017. max2 = bounds.max,
  1018. xIntersects = (max2.x >= min.x) && (min2.x <= max.x),
  1019. yIntersects = (max2.y >= min.y) && (min2.y <= max.y);
  1020. return xIntersects && yIntersects;
  1021. },
  1022. // @method overlaps(otherBounds: Bounds): Boolean
  1023. // Returns `true` if the rectangle overlaps the given bounds. Two bounds
  1024. // overlap if their intersection is an area.
  1025. overlaps: function (bounds) { // (Bounds) -> Boolean
  1026. bounds = L.bounds(bounds);
  1027. var min = this.min,
  1028. max = this.max,
  1029. min2 = bounds.min,
  1030. max2 = bounds.max,
  1031. xOverlaps = (max2.x > min.x) && (min2.x < max.x),
  1032. yOverlaps = (max2.y > min.y) && (min2.y < max.y);
  1033. return xOverlaps && yOverlaps;
  1034. },
  1035. isValid: function () {
  1036. return !!(this.min && this.max);
  1037. }
  1038. };
  1039. // @factory L.bounds(topLeft: Point, bottomRight: Point)
  1040. // Creates a Bounds object from two coordinates (usually top-left and bottom-right corners).
  1041. // @alternative
  1042. // @factory L.bounds(points: Point[])
  1043. // Creates a Bounds object from the points it contains
  1044. L.bounds = function (a, b) {
  1045. if (!a || a instanceof L.Bounds) {
  1046. return a;
  1047. }
  1048. return new L.Bounds(a, b);
  1049. };
  1050. /*
  1051. * @class Transformation
  1052. * @aka L.Transformation
  1053. *
  1054. * Represents an affine transformation: a set of coefficients `a`, `b`, `c`, `d`
  1055. * for transforming a point of a form `(x, y)` into `(a*x + b, c*y + d)` and doing
  1056. * the reverse. Used by Leaflet in its projections code.
  1057. *
  1058. * @example
  1059. *
  1060. * ```js
  1061. * var transformation = new L.Transformation(2, 5, -1, 10),
  1062. * p = L.point(1, 2),
  1063. * p2 = transformation.transform(p), // L.point(7, 8)
  1064. * p3 = transformation.untransform(p2); // L.point(1, 2)
  1065. * ```
  1066. */
  1067. // factory new L.Transformation(a: Number, b: Number, c: Number, d: Number)
  1068. // Creates a `Transformation` object with the given coefficients.
  1069. L.Transformation = function (a, b, c, d) {
  1070. this._a = a;
  1071. this._b = b;
  1072. this._c = c;
  1073. this._d = d;
  1074. };
  1075. L.Transformation.prototype = {
  1076. // @method transform(point: Point, scale?: Number): Point
  1077. // Returns a transformed point, optionally multiplied by the given scale.
  1078. // Only accepts actual `L.Point` instances, not arrays.
  1079. transform: function (point, scale) { // (Point, Number) -> Point
  1080. return this._transform(point.clone(), scale);
  1081. },
  1082. // destructive transform (faster)
  1083. _transform: function (point, scale) {
  1084. scale = scale || 1;
  1085. point.x = scale * (this._a * point.x + this._b);
  1086. point.y = scale * (this._c * point.y + this._d);
  1087. return point;
  1088. },
  1089. // @method untransform(point: Point, scale?: Number): Point
  1090. // Returns the reverse transformation of the given point, optionally divided
  1091. // by the given scale. Only accepts actual `L.Point` instances, not arrays.
  1092. untransform: function (point, scale) {
  1093. scale = scale || 1;
  1094. return new L.Point(
  1095. (point.x / scale - this._b) / this._a,
  1096. (point.y / scale - this._d) / this._c);
  1097. }
  1098. };
  1099. /*
  1100. * @namespace DomUtil
  1101. *
  1102. * Utility functions to work with the [DOM](https://developer.mozilla.org/docs/Web/API/Document_Object_Model)
  1103. * tree, used by Leaflet internally.
  1104. *
  1105. * Most functions expecting or returning a `HTMLElement` also work for
  1106. * SVG elements. The only difference is that classes refer to CSS classes
  1107. * in HTML and SVG classes in SVG.
  1108. */
  1109. L.DomUtil = {
  1110. // @function get(id: String|HTMLElement): HTMLElement
  1111. // Returns an element given its DOM id, or returns the element itself
  1112. // if it was passed directly.
  1113. get: function (id) {
  1114. return typeof id === 'string' ? document.getElementById(id) : id;
  1115. },
  1116. // @function getStyle(el: HTMLElement, styleAttrib: String): String
  1117. // Returns the value for a certain style attribute on an element,
  1118. // including computed values or values set through CSS.
  1119. getStyle: function (el, style) {
  1120. var value = el.style[style] || (el.currentStyle && el.currentStyle[style]);
  1121. if ((!value || value === 'auto') && document.defaultView) {
  1122. var css = document.defaultView.getComputedStyle(el, null);
  1123. value = css ? css[style] : null;
  1124. }
  1125. return value === 'auto' ? null : value;
  1126. },
  1127. // @function create(tagName: String, className?: String, container?: HTMLElement): HTMLElement
  1128. // Creates an HTML element with `tagName`, sets its class to `className`, and optionally appends it to `container` element.
  1129. create: function (tagName, className, container) {
  1130. var el = document.createElement(tagName);
  1131. el.className = className || '';
  1132. if (container) {
  1133. container.appendChild(el);
  1134. }
  1135. return el;
  1136. },
  1137. // @function remove(el: HTMLElement)
  1138. // Removes `el` from its parent element
  1139. remove: function (el) {
  1140. var parent = el.parentNode;
  1141. if (parent) {
  1142. parent.removeChild(el);
  1143. }
  1144. },
  1145. // @function empty(el: HTMLElement)
  1146. // Removes all of `el`'s children elements from `el`
  1147. empty: function (el) {
  1148. while (el.firstChild) {
  1149. el.removeChild(el.firstChild);
  1150. }
  1151. },
  1152. // @function toFront(el: HTMLElement)
  1153. // Makes `el` the last children of its parent, so it renders in front of the other children.
  1154. toFront: function (el) {
  1155. el.parentNode.appendChild(el);
  1156. },
  1157. // @function toBack(el: HTMLElement)
  1158. // Makes `el` the first children of its parent, so it renders back from the other children.
  1159. toBack: function (el) {
  1160. var parent = el.parentNode;
  1161. parent.insertBefore(el, parent.firstChild);
  1162. },
  1163. // @function hasClass(el: HTMLElement, name: String): Boolean
  1164. // Returns `true` if the element's class attribute contains `name`.
  1165. hasClass: function (el, name) {
  1166. if (el.classList !== undefined) {
  1167. return el.classList.contains(name);
  1168. }
  1169. var className = L.DomUtil.getClass(el);
  1170. return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className);
  1171. },
  1172. // @function addClass(el: HTMLElement, name: String)
  1173. // Adds `name` to the element's class attribute.
  1174. addClass: function (el, name) {
  1175. if (el.classList !== undefined) {
  1176. var classes = L.Util.splitWords(name);
  1177. for (var i = 0, len = classes.length; i < len; i++) {
  1178. el.classList.add(classes[i]);
  1179. }
  1180. } else if (!L.DomUtil.hasClass(el, name)) {
  1181. var className = L.DomUtil.getClass(el);
  1182. L.DomUtil.setClass(el, (className ? className + ' ' : '') + name);
  1183. }
  1184. },
  1185. // @function removeClass(el: HTMLElement, name: String)
  1186. // Removes `name` from the element's class attribute.
  1187. removeClass: function (el, name) {
  1188. if (el.classList !== undefined) {
  1189. el.classList.remove(name);
  1190. } else {
  1191. L.DomUtil.setClass(el, L.Util.trim((' ' + L.DomUtil.getClass(el) + ' ').replace(' ' + name + ' ', ' ')));
  1192. }
  1193. },
  1194. // @function setClass(el: HTMLElement, name: String)
  1195. // Sets the element's class.
  1196. setClass: function (el, name) {
  1197. if (el.className.baseVal === undefined) {
  1198. el.className = name;
  1199. } else {
  1200. // in case of SVG element
  1201. el.className.baseVal = name;
  1202. }
  1203. },
  1204. // @function getClass(el: HTMLElement): String
  1205. // Returns the element's class.
  1206. getClass: function (el) {
  1207. return el.className.baseVal === undefined ? el.className : el.className.baseVal;
  1208. },
  1209. // @function setOpacity(el: HTMLElement, opacity: Number)
  1210. // Set the opacity of an element (including old IE support).
  1211. // `opacity` must be a number from `0` to `1`.
  1212. setOpacity: function (el, value) {
  1213. if ('opacity' in el.style) {
  1214. el.style.opacity = value;
  1215. } else if ('filter' in el.style) {
  1216. L.DomUtil._setOpacityIE(el, value);
  1217. }
  1218. },
  1219. _setOpacityIE: function (el, value) {
  1220. var filter = false,
  1221. filterName = 'DXImageTransform.Microsoft.Alpha';
  1222. // filters collection throws an error if we try to retrieve a filter that doesn't exist
  1223. try {
  1224. filter = el.filters.item(filterName);
  1225. } catch (e) {
  1226. // don't set opacity to 1 if we haven't already set an opacity,
  1227. // it isn't needed and breaks transparent pngs.
  1228. if (value === 1) { return; }
  1229. }
  1230. value = Math.round(value * 100);
  1231. if (filter) {
  1232. filter.Enabled = (value !== 100);
  1233. filter.Opacity = value;
  1234. } else {
  1235. el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';
  1236. }
  1237. },
  1238. // @function testProp(props: String[]): String|false
  1239. // Goes through the array of style names and returns the first name
  1240. // that is a valid style name for an element. If no such name is found,
  1241. // it returns false. Useful for vendor-prefixed styles like `transform`.
  1242. testProp: function (props) {
  1243. var style = document.documentElement.style;
  1244. for (var i = 0; i < props.length; i++) {
  1245. if (props[i] in style) {
  1246. return props[i];
  1247. }
  1248. }
  1249. return false;
  1250. },
  1251. // @function setTransform(el: HTMLElement, offset: Point, scale?: Number)
  1252. // Resets the 3D CSS transform of `el` so it is translated by `offset` pixels
  1253. // and optionally scaled by `scale`. Does not have an effect if the
  1254. // browser doesn't support 3D CSS transforms.
  1255. setTransform: function (el, offset, scale) {
  1256. var pos = offset || new L.Point(0, 0);
  1257. el.style[L.DomUtil.TRANSFORM] =
  1258. (L.Browser.ie3d ?
  1259. 'translate(' + pos.x + 'px,' + pos.y + 'px)' :
  1260. 'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') +
  1261. (scale ? ' scale(' + scale + ')' : '');
  1262. },
  1263. // @function setPosition(el: HTMLElement, position: Point)
  1264. // Sets the position of `el` to coordinates specified by `position`,
  1265. // using CSS translate or top/left positioning depending on the browser
  1266. // (used by Leaflet internally to position its layers).
  1267. setPosition: function (el, point) { // (HTMLElement, Point[, Boolean])
  1268. /*eslint-disable */
  1269. el._leaflet_pos = point;
  1270. /*eslint-enable */
  1271. if (L.Browser.any3d) {
  1272. L.DomUtil.setTransform(el, point);
  1273. } else {
  1274. el.style.left = point.x + 'px';
  1275. el.style.top = point.y + 'px';
  1276. }
  1277. },
  1278. // @function getPosition(el: HTMLElement): Point
  1279. // Returns the coordinates of an element previously positioned with setPosition.
  1280. getPosition: function (el) {
  1281. // this method is only used for elements previously positioned using setPosition,
  1282. // so it's safe to cache the position for performance
  1283. return el._leaflet_pos || new L.Point(0, 0);
  1284. }
  1285. };
  1286. (function () {
  1287. // prefix style property names
  1288. // @property TRANSFORM: String
  1289. // Vendor-prefixed fransform style name (e.g. `'webkitTransform'` for WebKit).
  1290. L.DomUtil.TRANSFORM = L.DomUtil.testProp(
  1291. ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);
  1292. // webkitTransition comes first because some browser versions that drop vendor prefix don't do
  1293. // the same for the transitionend event, in particular the Android 4.1 stock browser
  1294. // @property TRANSITION: String
  1295. // Vendor-prefixed transform style name.
  1296. var transition = L.DomUtil.TRANSITION = L.DomUtil.testProp(
  1297. ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);
  1298. L.DomUtil.TRANSITION_END =
  1299. transition === 'webkitTransition' || transition === 'OTransition' ? transition + 'End' : 'transitionend';
  1300. // @function disableTextSelection()
  1301. // Prevents the user from generating `selectstart` DOM events, usually generated
  1302. // when the user drags the mouse through a page with text. Used internally
  1303. // by Leaflet to override the behaviour of any click-and-drag interaction on
  1304. // the map. Affects drag interactions on the whole document.
  1305. // @function enableTextSelection()
  1306. // Cancels the effects of a previous [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection).
  1307. if ('onselectstart' in document) {
  1308. L.DomUtil.disableTextSelection = function () {
  1309. L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);
  1310. };
  1311. L.DomUtil.enableTextSelection = function () {
  1312. L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);
  1313. };
  1314. } else {
  1315. var userSelectProperty = L.DomUtil.testProp(
  1316. ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);
  1317. L.DomUtil.disableTextSelection = function () {
  1318. if (userSelectProperty) {
  1319. var style = document.documentElement.style;
  1320. this._userSelect = style[userSelectProperty];
  1321. style[userSelectProperty] = 'none';
  1322. }
  1323. };
  1324. L.DomUtil.enableTextSelection = function () {
  1325. if (userSelectProperty) {
  1326. document.documentElement.style[userSelectProperty] = this._userSelect;
  1327. delete this._userSelect;
  1328. }
  1329. };
  1330. }
  1331. // @function disableImageDrag()
  1332. // As [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection), but
  1333. // for `dragstart` DOM events, usually generated when the user drags an image.
  1334. L.DomUtil.disableImageDrag = function () {
  1335. L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);
  1336. };
  1337. // @function enableImageDrag()
  1338. // Cancels the effects of a previous [`L.DomUtil.disableImageDrag`](#domutil-disabletextselection).
  1339. L.DomUtil.enableImageDrag = function () {
  1340. L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);
  1341. };
  1342. // @function preventOutline(el: HTMLElement)
  1343. // Makes the [outline](https://developer.mozilla.org/docs/Web/CSS/outline)
  1344. // of the element `el` invisible. Used internally by Leaflet to prevent
  1345. // focusable elements from displaying an outline when the user performs a
  1346. // drag interaction on them.
  1347. L.DomUtil.preventOutline = function (element) {
  1348. while (element.tabIndex === -1) {
  1349. element = element.parentNode;
  1350. }
  1351. if (!element || !element.style) { return; }
  1352. L.DomUtil.restoreOutline();
  1353. this._outlineElement = element;
  1354. this._outlineStyle = element.style.outline;
  1355. element.style.outline = 'none';
  1356. L.DomEvent.on(window, 'keydown', L.DomUtil.restoreOutline, this);
  1357. };
  1358. // @function restoreOutline()
  1359. // Cancels the effects of a previous [`L.DomUtil.preventOutline`]().
  1360. L.DomUtil.restoreOutline = function () {
  1361. if (!this._outlineElement) { return; }
  1362. this._outlineElement.style.outline = this._outlineStyle;
  1363. delete this._outlineElement;
  1364. delete this._outlineStyle;
  1365. L.DomEvent.off(window, 'keydown', L.DomUtil.restoreOutline, this);
  1366. };
  1367. })();
  1368. /* @class LatLng
  1369. * @aka L.LatLng
  1370. *
  1371. * Represents a geographical point with a certain latitude and longitude.
  1372. *
  1373. * @example
  1374. *
  1375. * ```
  1376. * var latlng = L.latLng(50.5, 30.5);
  1377. * ```
  1378. *
  1379. * All Leaflet methods that accept LatLng objects also accept them in a simple Array form and simple object form (unless noted otherwise), so these lines are equivalent:
  1380. *
  1381. * ```
  1382. * map.panTo([50, 30]);
  1383. * map.panTo({lon: 30, lat: 50});
  1384. * map.panTo({lat: 50, lng: 30});
  1385. * map.panTo(L.latLng(50, 30));
  1386. * ```
  1387. */
  1388. L.LatLng = function (lat, lng, alt) {
  1389. if (isNaN(lat) || isNaN(lng)) {
  1390. throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');
  1391. }
  1392. // @property lat: Number
  1393. // Latitude in degrees
  1394. this.lat = +lat;
  1395. // @property lng: Number
  1396. // Longitude in degrees
  1397. this.lng = +lng;
  1398. // @property alt: Number
  1399. // Altitude in meters (optional)
  1400. if (alt !== undefined) {
  1401. this.alt = +alt;
  1402. }
  1403. };
  1404. L.LatLng.prototype = {
  1405. // @method equals(otherLatLng: LatLng, maxMargin?: Number): Boolean
  1406. // Returns `true` if the given `LatLng` point is at the same position (within a small margin of error). The margin of error can be overriden by setting `maxMargin` to a small number.
  1407. equals: function (obj, maxMargin) {
  1408. if (!obj) { return false; }
  1409. obj = L.latLng(obj);
  1410. var margin = Math.max(
  1411. Math.abs(this.lat - obj.lat),
  1412. Math.abs(this.lng - obj.lng));
  1413. return margin <= (maxMargin === undefined ? 1.0E-9 : maxMargin);
  1414. },
  1415. // @method toString(): String
  1416. // Returns a string representation of the point (for debugging purposes).
  1417. toString: function (precision) {
  1418. return 'LatLng(' +
  1419. L.Util.formatNum(this.lat, precision) + ', ' +
  1420. L.Util.formatNum(this.lng, precision) + ')';
  1421. },
  1422. // @method distanceTo(otherLatLng: LatLng): Number
  1423. // Returns the distance (in meters) to the given `LatLng` calculated using the [Haversine formula](http://en.wikipedia.org/wiki/Haversine_formula).
  1424. distanceTo: function (other) {
  1425. return L.CRS.Earth.distance(this, L.latLng(other));
  1426. },
  1427. // @method wrap(): LatLng
  1428. // Returns a new `LatLng` object with the longitude wrapped so it's always between -180 and +180 degrees.
  1429. wrap: function () {
  1430. return L.CRS.Earth.wrapLatLng(this);
  1431. },
  1432. // @method toBounds(sizeInMeters: Number): LatLngBounds
  1433. // Returns a new `LatLngBounds` object in which each boundary is `sizeInMeters` meters apart from the `LatLng`.
  1434. toBounds: function (sizeInMeters) {
  1435. var latAccuracy = 180 * sizeInMeters / 40075017,
  1436. lngAccuracy = latAccuracy / Math.cos((Math.PI / 180) * this.lat);
  1437. return L.latLngBounds(
  1438. [this.lat - latAccuracy, this.lng - lngAccuracy],
  1439. [this.lat + latAccuracy, this.lng + lngAccuracy]);
  1440. },
  1441. clone: function () {
  1442. return new L.LatLng(this.lat, this.lng, this.alt);
  1443. }
  1444. };
  1445. // @factory L.latLng(latitude: Number, longitude: Number, altitude?: Number): LatLng
  1446. // Creates an object representing a geographical point with the given latitude and longitude (and optionally altitude).
  1447. // @alternative
  1448. // @factory L.latLng(coords: Array): LatLng
  1449. // Expects an array of the form `[Number, Number]` or `[Number, Number, Number]` instead.
  1450. // @alternative
  1451. // @factory L.latLng(coords: Object): LatLng
  1452. // Expects an plain object of the form `{lat: Number, lng: Number}` or `{lat: Number, lng: Number, alt: Number}` instead.
  1453. L.latLng = function (a, b, c) {
  1454. if (a instanceof L.LatLng) {
  1455. return a;
  1456. }
  1457. if (L.Util.isArray(a) && typeof a[0] !== 'object') {
  1458. if (a.length === 3) {
  1459. return new L.LatLng(a[0], a[1], a[2]);
  1460. }
  1461. if (a.length === 2) {
  1462. return new L.LatLng(a[0], a[1]);
  1463. }
  1464. return null;
  1465. }
  1466. if (a === undefined || a === null) {
  1467. return a;
  1468. }
  1469. if (typeof a === 'object' && 'lat' in a) {
  1470. return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt);
  1471. }
  1472. if (b === undefined) {
  1473. return null;
  1474. }
  1475. return new L.LatLng(a, b, c);
  1476. };
  1477. /*
  1478. * @class LatLngBounds
  1479. * @aka L.LatLngBounds
  1480. *
  1481. * Represents a rectangular geographical area on a map.
  1482. *
  1483. * @example
  1484. *
  1485. * ```js
  1486. * var corner1 = L.latLng(40.712, -74.227),
  1487. * corner2 = L.latLng(40.774, -74.125),
  1488. * bounds = L.latLngBounds(corner1, corner2);
  1489. * ```
  1490. *
  1491. * All Leaflet methods that accept LatLngBounds objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:
  1492. *
  1493. * ```js
  1494. * map.fitBounds([
  1495. * [40.712, -74.227],
  1496. * [40.774, -74.125]
  1497. * ]);
  1498. * ```
  1499. *
  1500. * Caution: if the area crosses the antimeridian (often confused with the International Date Line), you must specify corners _outside_ the [-180, 180] degrees longitude range.
  1501. */
  1502. L.LatLngBounds = function (corner1, corner2) { // (LatLng, LatLng) or (LatLng[])
  1503. if (!corner1) { return; }
  1504. var latlngs = corner2 ? [corner1, corner2] : corner1;
  1505. for (var i = 0, len = latlngs.length; i < len; i++) {
  1506. this.extend(latlngs[i]);
  1507. }
  1508. };
  1509. L.LatLngBounds.prototype = {
  1510. // @method extend(latlng: LatLng): this
  1511. // Extend the bounds to contain the given point
  1512. // @alternative
  1513. // @method extend(otherBounds: LatLngBounds): this
  1514. // Extend the bounds to contain the given bounds
  1515. extend: function (obj) {
  1516. var sw = this._southWest,
  1517. ne = this._northEast,
  1518. sw2, ne2;
  1519. if (obj instanceof L.LatLng) {
  1520. sw2 = obj;
  1521. ne2 = obj;
  1522. } else if (obj instanceof L.LatLngBounds) {
  1523. sw2 = obj._southWest;
  1524. ne2 = obj._northEast;
  1525. if (!sw2 || !ne2) { return this; }
  1526. } else {
  1527. return obj ? this.extend(L.latLng(obj) || L.latLngBounds(obj)) : this;
  1528. }
  1529. if (!sw && !ne) {
  1530. this._southWest = new L.LatLng(sw2.lat, sw2.lng);
  1531. this._northEast = new L.LatLng(ne2.lat, ne2.lng);
  1532. } else {
  1533. sw.lat = Math.min(sw2.lat, sw.lat);
  1534. sw.lng = Math.min(sw2.lng, sw.lng);
  1535. ne.lat = Math.max(ne2.lat, ne.lat);
  1536. ne.lng = Math.max(ne2.lng, ne.lng);
  1537. }
  1538. return this;
  1539. },
  1540. // @method pad(bufferRatio: Number): LatLngBounds
  1541. // Returns bigger bounds created by extending the current bounds by a given percentage in each direction.
  1542. pad: function (bufferRatio) {
  1543. var sw = this._southWest,
  1544. ne = this._northEast,
  1545. heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,
  1546. widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;
  1547. return new L.LatLngBounds(
  1548. new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),
  1549. new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));
  1550. },
  1551. // @method getCenter(): LatLng
  1552. // Returns the center point of the bounds.
  1553. getCenter: function () {
  1554. return new L.LatLng(
  1555. (this._southWest.lat + this._northEast.lat) / 2,
  1556. (this._southWest.lng + this._northEast.lng) / 2);
  1557. },
  1558. // @method getSouthWest(): LatLng
  1559. // Returns the south-west point of the bounds.
  1560. getSouthWest: function () {
  1561. return this._southWest;
  1562. },
  1563. // @method getNorthEast(): LatLng
  1564. // Returns the north-east point of the bounds.
  1565. getNorthEast: function () {
  1566. return this._northEast;
  1567. },
  1568. // @method getNorthWest(): LatLng
  1569. // Returns the north-west point of the bounds.
  1570. getNorthWest: function () {
  1571. return new L.LatLng(this.getNorth(), this.getWest());
  1572. },
  1573. // @method getSouthEast(): LatLng
  1574. // Returns the south-east point of the bounds.
  1575. getSouthEast: function () {
  1576. return new L.LatLng(this.getSouth(), this.getEast());
  1577. },
  1578. // @method getWest(): Number
  1579. // Returns the west longitude of the bounds
  1580. getWest: function () {
  1581. return this._southWest.lng;
  1582. },
  1583. // @method getSouth(): Number
  1584. // Returns the south latitude of the bounds
  1585. getSouth: function () {
  1586. return this._southWest.lat;
  1587. },
  1588. // @method getEast(): Number
  1589. // Returns the east longitude of the bounds
  1590. getEast: function () {
  1591. return this._northEast.lng;
  1592. },
  1593. // @method getNorth(): Number
  1594. // Returns the north latitude of the bounds
  1595. getNorth: function () {
  1596. return this._northEast.lat;
  1597. },
  1598. // @method contains(otherBounds: LatLngBounds): Boolean
  1599. // Returns `true` if the rectangle contains the given one.
  1600. // @alternative
  1601. // @method contains (latlng: LatLng): Boolean
  1602. // Returns `true` if the rectangle contains the given point.
  1603. contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean
  1604. if (typeof obj[0] === 'number' || obj instanceof L.LatLng) {
  1605. obj = L.latLng(obj);
  1606. } else {
  1607. obj = L.latLngBounds(obj);
  1608. }
  1609. var sw = this._southWest,
  1610. ne = this._northEast,
  1611. sw2, ne2;
  1612. if (obj instanceof L.LatLngBounds) {
  1613. sw2 = obj.getSouthWest();
  1614. ne2 = obj.getNorthEast();
  1615. } else {
  1616. sw2 = ne2 = obj;
  1617. }
  1618. return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&
  1619. (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
  1620. },
  1621. // @method intersects(otherBounds: LatLngBounds): Boolean
  1622. // Returns `true` if the rectangle intersects the given bounds. Two bounds intersect if they have at least one point in common.
  1623. intersects: function (bounds) {
  1624. bounds = L.latLngBounds(bounds);
  1625. var sw = this._southWest,
  1626. ne = this._northEast,
  1627. sw2 = bounds.getSouthWest(),
  1628. ne2 = bounds.getNorthEast(),
  1629. latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),
  1630. lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);
  1631. return latIntersects && lngIntersects;
  1632. },
  1633. // @method overlaps(otherBounds: Bounds): Boolean
  1634. // Returns `true` if the rectangle overlaps the given bounds. Two bounds overlap if their intersection is an area.
  1635. overlaps: function (bounds) {
  1636. bounds = L.latLngBounds(bounds);
  1637. var sw = this._southWest,
  1638. ne = this._northEast,
  1639. sw2 = bounds.getSouthWest(),
  1640. ne2 = bounds.getNorthEast(),
  1641. latOverlaps = (ne2.lat > sw.lat) && (sw2.lat < ne.lat),
  1642. lngOverlaps = (ne2.lng > sw.lng) && (sw2.lng < ne.lng);
  1643. return latOverlaps && lngOverlaps;
  1644. },
  1645. // @method toBBoxString(): String
  1646. // Returns a string with bounding box coordinates in a 'southwest_lng,southwest_lat,northeast_lng,northeast_lat' format. Useful for sending requests to web services that return geo data.
  1647. toBBoxString: function () {
  1648. return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');
  1649. },
  1650. // @method equals(otherBounds: LatLngBounds): Boolean
  1651. // Returns `true` if the rectangle is equivalent (within a small margin of error) to the given bounds.
  1652. equals: function (bounds) {
  1653. if (!bounds) { return false; }
  1654. bounds = L.latLngBounds(bounds);
  1655. return this._southWest.equals(bounds.getSouthWest()) &&
  1656. this._northEast.equals(bounds.getNorthEast());
  1657. },
  1658. // @method isValid(): Boolean
  1659. // Returns `true` if the bounds are properly initialized.
  1660. isValid: function () {
  1661. return !!(this._southWest && this._northEast);
  1662. }
  1663. };
  1664. // TODO International date line?
  1665. // @factory L.latLngBounds(corner1: LatLng, corner2: LatLng)
  1666. // Creates a `LatLngBounds` object by defining two diagonally opposite corners of the rectangle.
  1667. // @alternative
  1668. // @factory L.latLngBounds(latlngs: LatLng[])
  1669. // Creates a `LatLngBounds` object defined by the geographical points it contains. Very useful for zooming the map to fit a particular set of locations with [`fitBounds`](#map-fitbounds).
  1670. L.latLngBounds = function (a, b) {
  1671. if (a instanceof L.LatLngBounds) {
  1672. return a;
  1673. }
  1674. return new L.LatLngBounds(a, b);
  1675. };
  1676. /*
  1677. * @namespace Projection
  1678. * @section
  1679. * Leaflet comes with a set of already defined Projections out of the box:
  1680. *
  1681. * @projection L.Projection.LonLat
  1682. *
  1683. * Equirectangular, or Plate Carree projection — the most simple projection,
  1684. * mostly used by GIS enthusiasts. Directly maps `x` as longitude, and `y` as
  1685. * latitude. Also suitable for flat worlds, e.g. game maps. Used by the
  1686. * `EPSG:3395` and `Simple` CRS.
  1687. */
  1688. L.Projection = {};
  1689. L.Projection.LonLat = {
  1690. project: function (latlng) {
  1691. return new L.Point(latlng.lng, latlng.lat);
  1692. },
  1693. unproject: function (point) {
  1694. return new L.LatLng(point.y, point.x);
  1695. },
  1696. bounds: L.bounds([-180, -90], [180, 90])
  1697. };
  1698. /*
  1699. * @namespace Projection
  1700. * @projection L.Projection.SphericalMercator
  1701. *
  1702. * Spherical Mercator projection — the most common projection for online maps,
  1703. * used by almost all free and commercial tile providers. Assumes that Earth is
  1704. * a sphere. Used by the `EPSG:3857` CRS.
  1705. */
  1706. L.Projection.SphericalMercator = {
  1707. R: 6378137,
  1708. MAX_LATITUDE: 85.0511287798,
  1709. project: function (latlng) {
  1710. var d = Math.PI / 180,
  1711. max = this.MAX_LATITUDE,
  1712. lat = Math.max(Math.min(max, latlng.lat), -max),
  1713. sin = Math.sin(lat * d);
  1714. return new L.Point(
  1715. this.R * latlng.lng * d,
  1716. this.R * Math.log((1 + sin) / (1 - sin)) / 2);
  1717. },
  1718. unproject: function (point) {
  1719. var d = 180 / Math.PI;
  1720. return new L.LatLng(
  1721. (2 * Math.atan(Math.exp(point.y / this.R)) - (Math.PI / 2)) * d,
  1722. point.x * d / this.R);
  1723. },
  1724. bounds: (function () {
  1725. var d = 6378137 * Math.PI;
  1726. return L.bounds([-d, -d], [d, d]);
  1727. })()
  1728. };
  1729. /*
  1730. * @class CRS
  1731. * @aka L.CRS
  1732. * Abstract class that defines coordinate reference systems for projecting
  1733. * geographical points into pixel (screen) coordinates and back (and to
  1734. * coordinates in other units for [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services). See
  1735. * [spatial reference system](http://en.wikipedia.org/wiki/Coordinate_reference_system).
  1736. *
  1737. * Leaflet defines the most usual CRSs by default. If you want to use a
  1738. * CRS not defined by default, take a look at the
  1739. * [Proj4Leaflet](https://github.com/kartena/Proj4Leaflet) plugin.
  1740. */
  1741. L.CRS = {
  1742. // @method latLngToPoint(latlng: LatLng, zoom: Number): Point
  1743. // Projects geographical coordinates into pixel coordinates for a given zoom.
  1744. latLngToPoint: function (latlng, zoom) {
  1745. var projectedPoint = this.projection.project(latlng),
  1746. scale = this.scale(zoom);
  1747. return this.transformation._transform(projectedPoint, scale);
  1748. },
  1749. // @method pointToLatLng(point: Point, zoom: Number): LatLng
  1750. // The inverse of `latLngToPoint`. Projects pixel coordinates on a given
  1751. // zoom into geographical coordinates.
  1752. pointToLatLng: function (point, zoom) {
  1753. var scale = this.scale(zoom),
  1754. untransformedPoint = this.transformation.untransform(point, scale);
  1755. return this.projection.unproject(untransformedPoint);
  1756. },
  1757. // @method project(latlng: LatLng): Point
  1758. // Projects geographical coordinates into coordinates in units accepted for
  1759. // this CRS (e.g. meters for EPSG:3857, for passing it to WMS services).
  1760. project: function (latlng) {
  1761. return this.projection.project(latlng);
  1762. },
  1763. // @method unproject(point: Point): LatLng
  1764. // Given a projected coordinate returns the corresponding LatLng.
  1765. // The inverse of `project`.
  1766. unproject: function (point) {
  1767. return this.projection.unproject(point);
  1768. },
  1769. // @method scale(zoom: Number): Number
  1770. // Returns the scale used when transforming projected coordinates into
  1771. // pixel coordinates for a particular zoom. For example, it returns
  1772. // `256 * 2^zoom` for Mercator-based CRS.
  1773. scale: function (zoom) {
  1774. return 256 * Math.pow(2, zoom);
  1775. },
  1776. // @method zoom(scale: Number): Number
  1777. // Inverse of `scale()`, returns the zoom level corresponding to a scale
  1778. // factor of `scale`.
  1779. zoom: function (scale) {
  1780. return Math.log(scale / 256) / Math.LN2;
  1781. },
  1782. // @method getProjectedBounds(zoom: Number): Bounds
  1783. // Returns the projection's bounds scaled and transformed for the provided `zoom`.
  1784. getProjectedBounds: function (zoom) {
  1785. if (this.infinite) { return null; }
  1786. var b = this.projection.bounds,
  1787. s = this.scale(zoom),
  1788. min = this.transformation.transform(b.min, s),
  1789. max = this.transformation.transform(b.max, s);
  1790. return L.bounds(min, max);
  1791. },
  1792. // @method distance(latlng1: LatLng, latlng2: LatLng): Number
  1793. // Returns the distance between two geographical coordinates.
  1794. // @property code: String
  1795. // Standard code name of the CRS passed into WMS services (e.g. `'EPSG:3857'`)
  1796. //
  1797. // @property wrapLng: Number[]
  1798. // An array of two numbers defining whether the longitude (horizontal) coordinate
  1799. // axis wraps around a given range and how. Defaults to `[-180, 180]` in most
  1800. // geographical CRSs. If `undefined`, the longitude axis does not wrap around.
  1801. //
  1802. // @property wrapLat: Number[]
  1803. // Like `wrapLng`, but for the latitude (vertical) axis.
  1804. // wrapLng: [min, max],
  1805. // wrapLat: [min, max],
  1806. // @property infinite: Boolean
  1807. // If true, the coordinate space will be unbounded (infinite in both axes)
  1808. infinite: false,
  1809. // @method wrapLatLng(latlng: LatLng): LatLng
  1810. // Returns a `LatLng` where lat and lng has been wrapped according to the
  1811. // CRS's `wrapLat` and `wrapLng` properties, if they are outside the CRS's bounds.
  1812. wrapLatLng: function (latlng) {
  1813. var lng = this.wrapLng ? L.Util.wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng,
  1814. lat = this.wrapLat ? L.Util.wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat,
  1815. alt = latlng.alt;
  1816. return L.latLng(lat, lng, alt);
  1817. }
  1818. };
  1819. /*
  1820. * @namespace CRS
  1821. * @crs L.CRS.Simple
  1822. *
  1823. * A simple CRS that maps longitude and latitude into `x` and `y` directly.
  1824. * May be used for maps of flat surfaces (e.g. game maps). Note that the `y`
  1825. * axis should still be inverted (going from bottom to top). `distance()` returns
  1826. * simple euclidean distance.
  1827. */
  1828. L.CRS.Simple = L.extend({}, L.CRS, {
  1829. projection: L.Projection.LonLat,
  1830. transformation: new L.Transformation(1, 0, -1, 0),
  1831. scale: function (zoom) {
  1832. return Math.pow(2, zoom);
  1833. },
  1834. zoom: function (scale) {
  1835. return Math.log(scale) / Math.LN2;
  1836. },
  1837. distance: function (latlng1, latlng2) {
  1838. var dx = latlng2.lng - latlng1.lng,
  1839. dy = latlng2.lat - latlng1.lat;
  1840. return Math.sqrt(dx * dx + dy * dy);
  1841. },
  1842. infinite: true
  1843. });
  1844. /*
  1845. * @namespace CRS
  1846. * @crs L.CRS.Earth
  1847. *
  1848. * Serves as the base for CRS that are global such that they cover the earth.
  1849. * Can only be used as the base for other CRS and cannot be used directly,
  1850. * since it does not have a `code`, `projection` or `transformation`. `distance()` returns
  1851. * meters.
  1852. */
  1853. L.CRS.Earth = L.extend({}, L.CRS, {
  1854. wrapLng: [-180, 180],
  1855. // Mean Earth Radius, as recommended for use by
  1856. // the International Union of Geodesy and Geophysics,
  1857. // see http://rosettacode.org/wiki/Haversine_formula
  1858. R: 6371000,
  1859. // distance between two geographical points using spherical law of cosines approximation
  1860. distance: function (latlng1, latlng2) {
  1861. var rad = Math.PI / 180,
  1862. lat1 = latlng1.lat * rad,
  1863. lat2 = latlng2.lat * rad,
  1864. a = Math.sin(lat1) * Math.sin(lat2) +
  1865. Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad);
  1866. return this.R * Math.acos(Math.min(a, 1));
  1867. }
  1868. });
  1869. /*
  1870. * @namespace CRS
  1871. * @crs L.CRS.EPSG3857
  1872. *
  1873. * The most common CRS for online maps, used by almost all free and commercial
  1874. * tile providers. Uses Spherical Mercator projection. Set in by default in
  1875. * Map's `crs` option.
  1876. */
  1877. L.CRS.EPSG3857 = L.extend({}, L.CRS.Earth, {
  1878. code: 'EPSG:3857',
  1879. projection: L.Projection.SphericalMercator,
  1880. transformation: (function () {
  1881. var scale = 0.5 / (Math.PI * L.Projection.SphericalMercator.R);
  1882. return new L.Transformation(scale, 0.5, -scale, 0.5);
  1883. }())
  1884. });
  1885. L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {
  1886. code: 'EPSG:900913'
  1887. });
  1888. /*
  1889. * @namespace CRS
  1890. * @crs L.CRS.EPSG4326
  1891. *
  1892. * A common CRS among GIS enthusiasts. Uses simple Equirectangular projection.
  1893. *
  1894. * Leaflet 1.0.x complies with the [TMS coordinate scheme for EPSG:4326](https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification#global-geodetic),
  1895. * which is a breaking change from 0.7.x behaviour. If you are using a `TileLayer`
  1896. * with this CRS, ensure that there are two 256x256 pixel tiles covering the
  1897. * whole earth at zoom level zero, and that the tile coordinate origin is (-180,+90),
  1898. * or (-180,-90) for `TileLayer`s with [the `tms` option](#tilelayer-tms) set.
  1899. */
  1900. L.CRS.EPSG4326 = L.extend({}, L.CRS.Earth, {
  1901. code: 'EPSG:4326',
  1902. projection: L.Projection.LonLat,
  1903. transformation: new L.Transformation(1 / 180, 1, -1 / 180, 0.5)
  1904. });
  1905. /*
  1906. * @class Map
  1907. * @aka L.Map
  1908. * @inherits Evented
  1909. *
  1910. * The central class of the API — it is used to create a map on a page and manipulate it.
  1911. *
  1912. * @example
  1913. *
  1914. * ```js
  1915. * // initialize the map on the "map" div with a given center and zoom
  1916. * var map = L.map('map', {
  1917. * center: [51.505, -0.09],
  1918. * zoom: 13
  1919. * });
  1920. * ```
  1921. *
  1922. */
  1923. L.Map = L.Evented.extend({
  1924. options: {
  1925. // @section Map State Options
  1926. // @option crs: CRS = L.CRS.EPSG3857
  1927. // The [Coordinate Reference System](#crs) to use. Don't change this if you're not
  1928. // sure what it means.
  1929. crs: L.CRS.EPSG3857,
  1930. // @option center: LatLng = undefined
  1931. // Initial geographic center of the map
  1932. center: undefined,
  1933. // @option zoom: Number = undefined
  1934. // Initial map zoom level
  1935. zoom: undefined,
  1936. // @option minZoom: Number = undefined
  1937. // Minimum zoom level of the map. Overrides any `minZoom` option set on map layers.
  1938. minZoom: undefined,
  1939. // @option maxZoom: Number = undefined
  1940. // Maximum zoom level of the map. Overrides any `maxZoom` option set on map layers.
  1941. maxZoom: undefined,
  1942. // @option layers: Layer[] = []
  1943. // Array of layers that will be added to the map initially
  1944. layers: [],
  1945. // @option maxBounds: LatLngBounds = null
  1946. // When this option is set, the map restricts the view to the given
  1947. // geographical bounds, bouncing the user back when he tries to pan
  1948. // outside the view. To set the restriction dynamically, use
  1949. // [`setMaxBounds`](#map-setmaxbounds) method.
  1950. maxBounds: undefined,
  1951. // @option renderer: Renderer = *
  1952. // The default method for drawing vector layers on the map. `L.SVG`
  1953. // or `L.Canvas` by default depending on browser support.
  1954. renderer: undefined,
  1955. // @section Animation Options
  1956. // @option zoomAnimation: Boolean = true
  1957. // Whether the map zoom animation is enabled. By default it's enabled
  1958. // in all browsers that support CSS3 Transitions except Android.
  1959. zoomAnimation: true,
  1960. // @option zoomAnimationThreshold: Number = 4
  1961. // Won't animate zoom if the zoom difference exceeds this value.
  1962. zoomAnimationThreshold: 4,
  1963. // @option fadeAnimation: Boolean = true
  1964. // Whether the tile fade animation is enabled. By default it's enabled
  1965. // in all browsers that support CSS3 Transitions except Android.
  1966. fadeAnimation: true,
  1967. // @option markerZoomAnimation: Boolean = true
  1968. // Whether markers animate their zoom with the zoom animation, if disabled
  1969. // they will disappear for the length of the animation. By default it's
  1970. // enabled in all browsers that support CSS3 Transitions except Android.
  1971. markerZoomAnimation: true,
  1972. // @option transform3DLimit: Number = 2^23
  1973. // Defines the maximum size of a CSS translation transform. The default
  1974. // value should not be changed unless a web browser positions layers in
  1975. // the wrong place after doing a large `panBy`.
  1976. transform3DLimit: 8388608, // Precision limit of a 32-bit float
  1977. // @section Interaction Options
  1978. // @option zoomSnap: Number = 1
  1979. // Forces the map's zoom level to always be a multiple of this, particularly
  1980. // right after a [`fitBounds()`](#map-fitbounds) or a pinch-zoom.
  1981. // By default, the zoom level snaps to the nearest integer; lower values
  1982. // (e.g. `0.5` or `0.1`) allow for greater granularity. A value of `0`
  1983. // means the zoom level will not be snapped after `fitBounds` or a pinch-zoom.
  1984. zoomSnap: 1,
  1985. // @option zoomDelta: Number = 1
  1986. // Controls how much the map's zoom level will change after a
  1987. // [`zoomIn()`](#map-zoomin), [`zoomOut()`](#map-zoomout), pressing `+`
  1988. // or `-` on the keyboard, or using the [zoom controls](#control-zoom).
  1989. // Values smaller than `1` (e.g. `0.5`) allow for greater granularity.
  1990. zoomDelta: 1,
  1991. // @option trackResize: Boolean = true
  1992. // Whether the map automatically handles browser window resize to update itself.
  1993. trackResize: true
  1994. },
  1995. initialize: function (id, options) { // (HTMLElement or String, Object)
  1996. options = L.setOptions(this, options);
  1997. this._initContainer(id);
  1998. this._initLayout();
  1999. // hack for https://github.com/Leaflet/Leaflet/issues/1980
  2000. this._onResize = L.bind(this._onResize, this);
  2001. this._initEvents();
  2002. if (options.maxBounds) {
  2003. this.setMaxBounds(options.maxBounds);
  2004. }
  2005. if (options.zoom !== undefined) {
  2006. this._zoom = this._limitZoom(options.zoom);
  2007. }
  2008. if (options.center && options.zoom !== undefined) {
  2009. this.setView(L.latLng(options.center), options.zoom, {reset: true});
  2010. }
  2011. this._handlers = [];
  2012. this._layers = {};
  2013. this._zoomBoundLayers = {};
  2014. this._sizeChanged = true;
  2015. this.callInitHooks();
  2016. // don't animate on browsers without hardware-accelerated transitions or old Android/Opera
  2017. this._zoomAnimated = L.DomUtil.TRANSITION && L.Browser.any3d && !L.Browser.mobileOpera &&
  2018. this.options.zoomAnimation;
  2019. // zoom transitions run with the same duration for all layers, so if one of transitionend events
  2020. // happens after starting zoom animation (propagating to the map pane), we know that it ended globally
  2021. if (this._zoomAnimated) {
  2022. this._createAnimProxy();
  2023. L.DomEvent.on(this._proxy, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this);
  2024. }
  2025. this._addLayers(this.options.layers);
  2026. },
  2027. // @section Methods for modifying map state
  2028. // @method setView(center: LatLng, zoom: Number, options?: Zoom/pan options): this
  2029. // Sets the view of the map (geographical center and zoom) with the given
  2030. // animation options.
  2031. setView: function (center, zoom, options) {
  2032. zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);
  2033. center = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds);
  2034. options = options || {};
  2035. this._stop();
  2036. if (this._loaded && !options.reset && options !== true) {
  2037. if (options.animate !== undefined) {
  2038. options.zoom = L.extend({animate: options.animate}, options.zoom);
  2039. options.pan = L.extend({animate: options.animate, duration: options.duration}, options.pan);
  2040. }
  2041. // try animating pan or zoom
  2042. var moved = (this._zoom !== zoom) ?
  2043. this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :
  2044. this._tryAnimatedPan(center, options.pan);
  2045. if (moved) {
  2046. // prevent resize handler call, the view will refresh after animation anyway
  2047. clearTimeout(this._sizeTimer);
  2048. return this;
  2049. }
  2050. }
  2051. // animation didn't start, just reset the map view
  2052. this._resetView(center, zoom);
  2053. return this;
  2054. },
  2055. // @method setZoom(zoom: Number, options: Zoom/pan options): this
  2056. // Sets the zoom of the map.
  2057. setZoom: function (zoom, options) {
  2058. if (!this._loaded) {
  2059. this._zoom = zoom;
  2060. return this;
  2061. }
  2062. return this.setView(this.getCenter(), zoom, {zoom: options});
  2063. },
  2064. // @method zoomIn(delta?: Number, options?: Zoom options): this
  2065. // Increases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).
  2066. zoomIn: function (delta, options) {
  2067. delta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1);
  2068. return this.setZoom(this._zoom + delta, options);
  2069. },
  2070. // @method zoomOut(delta?: Number, options?: Zoom options): this
  2071. // Decreases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).
  2072. zoomOut: function (delta, options) {
  2073. delta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1);
  2074. return this.setZoom(this._zoom - delta, options);
  2075. },
  2076. // @method setZoomAround(latlng: LatLng, zoom: Number, options: Zoom options): this
  2077. // Zooms the map while keeping a specified geographical point on the map
  2078. // stationary (e.g. used internally for scroll zoom and double-click zoom).
  2079. // @alternative
  2080. // @method setZoomAround(offset: Point, zoom: Number, options: Zoom options): this
  2081. // Zooms the map while keeping a specified pixel on the map (relative to the top-left corner) stationary.
  2082. setZoomAround: function (latlng, zoom, options) {
  2083. var scale = this.getZoomScale(zoom),
  2084. viewHalf = this.getSize().divideBy(2),
  2085. containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),
  2086. centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
  2087. newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));
  2088. return this.setView(newCenter, zoom, {zoom: options});
  2089. },
  2090. _getBoundsCenterZoom: function (bounds, options) {
  2091. options = options || {};
  2092. bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);
  2093. var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),
  2094. paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),
  2095. zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));
  2096. zoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom;
  2097. var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),
  2098. swPoint = this.project(bounds.getSouthWest(), zoom),
  2099. nePoint = this.project(bounds.getNorthEast(), zoom),
  2100. center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);
  2101. return {
  2102. center: center,
  2103. zoom: zoom
  2104. };
  2105. },
  2106. // @method fitBounds(bounds: LatLngBounds, options: fitBounds options): this
  2107. // Sets a map view that contains the given geographical bounds with the
  2108. // maximum zoom level possible.
  2109. fitBounds: function (bounds, options) {
  2110. bounds = L.latLngBounds(bounds);
  2111. if (!bounds.isValid()) {
  2112. throw new Error('Bounds are not valid.');
  2113. }
  2114. var target = this._getBoundsCenterZoom(bounds, options);
  2115. return this.setView(target.center, target.zoom, options);
  2116. },
  2117. // @method fitWorld(options?: fitBounds options): this
  2118. // Sets a map view that mostly contains the whole world with the maximum
  2119. // zoom level possible.
  2120. fitWorld: function (options) {
  2121. return this.fitBounds([[-90, -180], [90, 180]], options);
  2122. },
  2123. // @method panTo(latlng: LatLng, options?: Pan options): this
  2124. // Pans the map to a given center.
  2125. panTo: function (center, options) { // (LatLng)
  2126. return this.setView(center, this._zoom, {pan: options});
  2127. },
  2128. // @method panBy(offset: Point): this
  2129. // Pans the map by a given number of pixels (animated).
  2130. panBy: function (offset, options) {
  2131. offset = L.point(offset).round();
  2132. options = options || {};
  2133. if (!offset.x && !offset.y) {
  2134. return this.fire('moveend');
  2135. }
  2136. // If we pan too far, Chrome gets issues with tiles
  2137. // and makes them disappear or appear in the wrong place (slightly offset) #2602
  2138. if (options.animate !== true && !this.getSize().contains(offset)) {
  2139. this._resetView(this.unproject(this.project(this.getCenter()).add(offset)), this.getZoom());
  2140. return this;
  2141. }
  2142. if (!this._panAnim) {
  2143. this._panAnim = new L.PosAnimation();
  2144. this._panAnim.on({
  2145. 'step': this._onPanTransitionStep,
  2146. 'end': this._onPanTransitionEnd
  2147. }, this);
  2148. }
  2149. // don't fire movestart if animating inertia
  2150. if (!options.noMoveStart) {
  2151. this.fire('movestart');
  2152. }
  2153. // animate pan unless animate: false specified
  2154. if (options.animate !== false) {
  2155. L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');
  2156. var newPos = this._getMapPanePos().subtract(offset).round();
  2157. this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);
  2158. } else {
  2159. this._rawPanBy(offset);
  2160. this.fire('move').fire('moveend');
  2161. }
  2162. return this;
  2163. },
  2164. // @method flyTo(latlng: LatLng, zoom?: Number, options?: Zoom/pan options): this
  2165. // Sets the view of the map (geographical center and zoom) performing a smooth
  2166. // pan-zoom animation.
  2167. flyTo: function (targetCenter, targetZoom, options) {
  2168. options = options || {};
  2169. if (options.animate === false || !L.Browser.any3d) {
  2170. return this.setView(targetCenter, targetZoom, options);
  2171. }
  2172. this._stop();
  2173. var from = this.project(this.getCenter()),
  2174. to = this.project(targetCenter),
  2175. size = this.getSize(),
  2176. startZoom = this._zoom;
  2177. targetCenter = L.latLng(targetCenter);
  2178. targetZoom = targetZoom === undefined ? startZoom : targetZoom;
  2179. var w0 = Math.max(size.x, size.y),
  2180. w1 = w0 * this.getZoomScale(startZoom, targetZoom),
  2181. u1 = (to.distanceTo(from)) || 1,
  2182. rho = 1.42,
  2183. rho2 = rho * rho;
  2184. function r(i) {
  2185. var s1 = i ? -1 : 1,
  2186. s2 = i ? w1 : w0,
  2187. t1 = w1 * w1 - w0 * w0 + s1 * rho2 * rho2 * u1 * u1,
  2188. b1 = 2 * s2 * rho2 * u1,
  2189. b = t1 / b1,
  2190. sq = Math.sqrt(b * b + 1) - b;
  2191. // workaround for floating point precision bug when sq = 0, log = -Infinite,
  2192. // thus triggering an infinite loop in flyTo
  2193. var log = sq < 0.000000001 ? -18 : Math.log(sq);
  2194. return log;
  2195. }
  2196. function sinh(n) { return (Math.exp(n) - Math.exp(-n)) / 2; }
  2197. function cosh(n) { return (Math.exp(n) + Math.exp(-n)) / 2; }
  2198. function tanh(n) { return sinh(n) / cosh(n); }
  2199. var r0 = r(0);
  2200. function w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); }
  2201. function u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; }
  2202. function easeOut(t) { return 1 - Math.pow(1 - t, 1.5); }
  2203. var start = Date.now(),
  2204. S = (r(1) - r0) / rho,
  2205. duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8;
  2206. function frame() {
  2207. var t = (Date.now() - start) / duration,
  2208. s = easeOut(t) * S;
  2209. if (t <= 1) {
  2210. this._flyToFrame = L.Util.requestAnimFrame(frame, this);
  2211. this._move(
  2212. this.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom),
  2213. this.getScaleZoom(w0 / w(s), startZoom),
  2214. {flyTo: true});
  2215. } else {
  2216. this
  2217. ._move(targetCenter, targetZoom)
  2218. ._moveEnd(true);
  2219. }
  2220. }
  2221. this._moveStart(true);
  2222. frame.call(this);
  2223. return this;
  2224. },
  2225. // @method flyToBounds(bounds: LatLngBounds, options?: fitBounds options): this
  2226. // Sets the view of the map with a smooth animation like [`flyTo`](#map-flyto),
  2227. // but takes a bounds parameter like [`fitBounds`](#map-fitbounds).
  2228. flyToBounds: function (bounds, options) {
  2229. var target = this._getBoundsCenterZoom(bounds, options);
  2230. return this.flyTo(target.center, target.zoom, options);
  2231. },
  2232. // @method setMaxBounds(bounds: Bounds): this
  2233. // Restricts the map view to the given bounds (see the [maxBounds](#map-maxbounds) option).
  2234. setMaxBounds: function (bounds) {
  2235. bounds = L.latLngBounds(bounds);
  2236. if (!bounds.isValid()) {
  2237. this.options.maxBounds = null;
  2238. return this.off('moveend', this._panInsideMaxBounds);
  2239. } else if (this.options.maxBounds) {
  2240. this.off('moveend', this._panInsideMaxBounds);
  2241. }
  2242. this.options.maxBounds = bounds;
  2243. if (this._loaded) {
  2244. this._panInsideMaxBounds();
  2245. }
  2246. return this.on('moveend', this._panInsideMaxBounds);
  2247. },
  2248. // @method setMinZoom(zoom: Number): this
  2249. // Sets the lower limit for the available zoom levels (see the [minZoom](#map-minzoom) option).
  2250. setMinZoom: function (zoom) {
  2251. this.options.minZoom = zoom;
  2252. if (this._loaded && this.getZoom() < this.options.minZoom) {
  2253. return this.setZoom(zoom);
  2254. }
  2255. return this;
  2256. },
  2257. // @method setMaxZoom(zoom: Number): this
  2258. // Sets the upper limit for the available zoom levels (see the [maxZoom](#map-maxzoom) option).
  2259. setMaxZoom: function (zoom) {
  2260. this.options.maxZoom = zoom;
  2261. if (this._loaded && (this.getZoom() > this.options.maxZoom)) {
  2262. return this.setZoom(zoom);
  2263. }
  2264. return this;
  2265. },
  2266. // @method panInsideBounds(bounds: LatLngBounds, options?: Pan options): this
  2267. // Pans the map to the closest view that would lie inside the given bounds (if it's not already), controlling the animation using the options specific, if any.
  2268. panInsideBounds: function (bounds, options) {
  2269. this._enforcingBounds = true;
  2270. var center = this.getCenter(),
  2271. newCenter = this._limitCenter(center, this._zoom, L.latLngBounds(bounds));
  2272. if (!center.equals(newCenter)) {
  2273. this.panTo(newCenter, options);
  2274. }
  2275. this._enforcingBounds = false;
  2276. return this;
  2277. },
  2278. // @method invalidateSize(options: Zoom/Pan options): this
  2279. // Checks if the map container size changed and updates the map if so —
  2280. // call it after you've changed the map size dynamically, also animating
  2281. // pan by default. If `options.pan` is `false`, panning will not occur.
  2282. // If `options.debounceMoveend` is `true`, it will delay `moveend` event so
  2283. // that it doesn't happen often even if the method is called many
  2284. // times in a row.
  2285. // @alternative
  2286. // @method invalidateSize(animate: Boolean): this
  2287. // Checks if the map container size changed and updates the map if so —
  2288. // call it after you've changed the map size dynamically, also animating
  2289. // pan by default.
  2290. invalidateSize: function (options) {
  2291. if (!this._loaded) { return this; }
  2292. options = L.extend({
  2293. animate: false,
  2294. pan: true
  2295. }, options === true ? {animate: true} : options);
  2296. var oldSize = this.getSize();
  2297. this._sizeChanged = true;
  2298. this._lastCenter = null;
  2299. var newSize = this.getSize(),
  2300. oldCenter = oldSize.divideBy(2).round(),
  2301. newCenter = newSize.divideBy(2).round(),
  2302. offset = oldCenter.subtract(newCenter);
  2303. if (!offset.x && !offset.y) { return this; }
  2304. if (options.animate && options.pan) {
  2305. this.panBy(offset);
  2306. } else {
  2307. if (options.pan) {
  2308. this._rawPanBy(offset);
  2309. }
  2310. this.fire('move');
  2311. if (options.debounceMoveend) {
  2312. clearTimeout(this._sizeTimer);
  2313. this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);
  2314. } else {
  2315. this.fire('moveend');
  2316. }
  2317. }
  2318. // @section Map state change events
  2319. // @event resize: ResizeEvent
  2320. // Fired when the map is resized.
  2321. return this.fire('resize', {
  2322. oldSize: oldSize,
  2323. newSize: newSize
  2324. });
  2325. },
  2326. // @section Methods for modifying map state
  2327. // @method stop(): this
  2328. // Stops the currently running `panTo` or `flyTo` animation, if any.
  2329. stop: function () {
  2330. this.setZoom(this._limitZoom(this._zoom));
  2331. if (!this.options.zoomSnap) {
  2332. this.fire('viewreset');
  2333. }
  2334. return this._stop();
  2335. },
  2336. // @section Geolocation methods
  2337. // @method locate(options?: Locate options): this
  2338. // Tries to locate the user using the Geolocation API, firing a [`locationfound`](#map-locationfound)
  2339. // event with location data on success or a [`locationerror`](#map-locationerror) event on failure,
  2340. // and optionally sets the map view to the user's location with respect to
  2341. // detection accuracy (or to the world view if geolocation failed).
  2342. // Note that, if your page doesn't use HTTPS, this method will fail in
  2343. // modern browsers ([Chrome 50 and newer](https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-powerful-features-on-insecure-origins))
  2344. // See `Locate options` for more details.
  2345. locate: function (options) {
  2346. options = this._locateOptions = L.extend({
  2347. timeout: 10000,
  2348. watch: false
  2349. // setView: false
  2350. // maxZoom: <Number>
  2351. // maximumAge: 0
  2352. // enableHighAccuracy: false
  2353. }, options);
  2354. if (!('geolocation' in navigator)) {
  2355. this._handleGeolocationError({
  2356. code: 0,
  2357. message: 'Geolocation not supported.'
  2358. });
  2359. return this;
  2360. }
  2361. var onResponse = L.bind(this._handleGeolocationResponse, this),
  2362. onError = L.bind(this._handleGeolocationError, this);
  2363. if (options.watch) {
  2364. this._locationWatchId =
  2365. navigator.geolocation.watchPosition(onResponse, onError, options);
  2366. } else {
  2367. navigator.geolocation.getCurrentPosition(onResponse, onError, options);
  2368. }
  2369. return this;
  2370. },
  2371. // @method stopLocate(): this
  2372. // Stops watching location previously initiated by `map.locate({watch: true})`
  2373. // and aborts resetting the map view if map.locate was called with
  2374. // `{setView: true}`.
  2375. stopLocate: function () {
  2376. if (navigator.geolocation && navigator.geolocation.clearWatch) {
  2377. navigator.geolocation.clearWatch(this._locationWatchId);
  2378. }
  2379. if (this._locateOptions) {
  2380. this._locateOptions.setView = false;
  2381. }
  2382. return this;
  2383. },
  2384. _handleGeolocationError: function (error) {
  2385. var c = error.code,
  2386. message = error.message ||
  2387. (c === 1 ? 'permission denied' :
  2388. (c === 2 ? 'position unavailable' : 'timeout'));
  2389. if (this._locateOptions.setView && !this._loaded) {
  2390. this.fitWorld();
  2391. }
  2392. // @section Location events
  2393. // @event locationerror: ErrorEvent
  2394. // Fired when geolocation (using the [`locate`](#map-locate) method) failed.
  2395. this.fire('locationerror', {
  2396. code: c,
  2397. message: 'Geolocation error: ' + message + '.'
  2398. });
  2399. },
  2400. _handleGeolocationResponse: function (pos) {
  2401. var lat = pos.coords.latitude,
  2402. lng = pos.coords.longitude,
  2403. latlng = new L.LatLng(lat, lng),
  2404. bounds = latlng.toBounds(pos.coords.accuracy),
  2405. options = this._locateOptions;
  2406. if (options.setView) {
  2407. var zoom = this.getBoundsZoom(bounds);
  2408. this.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom);
  2409. }
  2410. var data = {
  2411. latlng: latlng,
  2412. bounds: bounds,
  2413. timestamp: pos.timestamp
  2414. };
  2415. for (var i in pos.coords) {
  2416. if (typeof pos.coords[i] === 'number') {
  2417. data[i] = pos.coords[i];
  2418. }
  2419. }
  2420. // @event locationfound: LocationEvent
  2421. // Fired when geolocation (using the [`locate`](#map-locate) method)
  2422. // went successfully.
  2423. this.fire('locationfound', data);
  2424. },
  2425. // TODO handler.addTo
  2426. // TODO Appropiate docs section?
  2427. // @section Other Methods
  2428. // @method addHandler(name: String, HandlerClass: Function): this
  2429. // Adds a new `Handler` to the map, given its name and constructor function.
  2430. addHandler: function (name, HandlerClass) {
  2431. if (!HandlerClass) { return this; }
  2432. var handler = this[name] = new HandlerClass(this);
  2433. this._handlers.push(handler);
  2434. if (this.options[name]) {
  2435. handler.enable();
  2436. }
  2437. return this;
  2438. },
  2439. // @method remove(): this
  2440. // Destroys the map and clears all related event listeners.
  2441. remove: function () {
  2442. this._initEvents(true);
  2443. if (this._containerId !== this._container._leaflet_id) {
  2444. throw new Error('Map container is being reused by another instance');
  2445. }
  2446. try {
  2447. // throws error in IE6-8
  2448. delete this._container._leaflet_id;
  2449. delete this._containerId;
  2450. } catch (e) {
  2451. /*eslint-disable */
  2452. this._container._leaflet_id = undefined;
  2453. /*eslint-enable */
  2454. this._containerId = undefined;
  2455. }
  2456. L.DomUtil.remove(this._mapPane);
  2457. if (this._clearControlPos) {
  2458. this._clearControlPos();
  2459. }
  2460. this._clearHandlers();
  2461. if (this._loaded) {
  2462. // @section Map state change events
  2463. // @event unload: Event
  2464. // Fired when the map is destroyed with [remove](#map-remove) method.
  2465. this.fire('unload');
  2466. }
  2467. for (var i in this._layers) {
  2468. this._layers[i].remove();
  2469. }
  2470. return this;
  2471. },
  2472. // @section Other Methods
  2473. // @method createPane(name: String, container?: HTMLElement): HTMLElement
  2474. // Creates a new [map pane](#map-pane) with the given name if it doesn't exist already,
  2475. // then returns it. The pane is created as a children of `container`, or
  2476. // as a children of the main map pane if not set.
  2477. createPane: function (name, container) {
  2478. var className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''),
  2479. pane = L.DomUtil.create('div', className, container || this._mapPane);
  2480. if (name) {
  2481. this._panes[name] = pane;
  2482. }
  2483. return pane;
  2484. },
  2485. // @section Methods for Getting Map State
  2486. // @method getCenter(): LatLng
  2487. // Returns the geographical center of the map view
  2488. getCenter: function () {
  2489. this._checkIfLoaded();
  2490. if (this._lastCenter && !this._moved()) {
  2491. return this._lastCenter;
  2492. }
  2493. return this.layerPointToLatLng(this._getCenterLayerPoint());
  2494. },
  2495. // @method getZoom(): Number
  2496. // Returns the current zoom level of the map view
  2497. getZoom: function () {
  2498. return this._zoom;
  2499. },
  2500. // @method getBounds(): LatLngBounds
  2501. // Returns the geographical bounds visible in the current map view
  2502. getBounds: function () {
  2503. var bounds = this.getPixelBounds(),
  2504. sw = this.unproject(bounds.getBottomLeft()),
  2505. ne = this.unproject(bounds.getTopRight());
  2506. return new L.LatLngBounds(sw, ne);
  2507. },
  2508. // @method getMinZoom(): Number
  2509. // Returns the minimum zoom level of the map (if set in the `minZoom` option of the map or of any layers), or `0` by default.
  2510. getMinZoom: function () {
  2511. return this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom;
  2512. },
  2513. // @method getMaxZoom(): Number
  2514. // Returns the maximum zoom level of the map (if set in the `maxZoom` option of the map or of any layers).
  2515. getMaxZoom: function () {
  2516. return this.options.maxZoom === undefined ?
  2517. (this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :
  2518. this.options.maxZoom;
  2519. },
  2520. // @method getBoundsZoom(bounds: LatLngBounds, inside?: Boolean): Number
  2521. // Returns the maximum zoom level on which the given bounds fit to the map
  2522. // view in its entirety. If `inside` (optional) is set to `true`, the method
  2523. // instead returns the minimum zoom level on which the map view fits into
  2524. // the given bounds in its entirety.
  2525. getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number
  2526. bounds = L.latLngBounds(bounds);
  2527. padding = L.point(padding || [0, 0]);
  2528. var zoom = this.getZoom() || 0,
  2529. min = this.getMinZoom(),
  2530. max = this.getMaxZoom(),
  2531. nw = bounds.getNorthWest(),
  2532. se = bounds.getSouthEast(),
  2533. size = this.getSize().subtract(padding),
  2534. boundsSize = this.project(se, zoom).subtract(this.project(nw, zoom)),
  2535. snap = L.Browser.any3d ? this.options.zoomSnap : 1;
  2536. var scale = Math.min(size.x / boundsSize.x, size.y / boundsSize.y);
  2537. zoom = this.getScaleZoom(scale, zoom);
  2538. if (snap) {
  2539. zoom = Math.round(zoom / (snap / 100)) * (snap / 100); // don't jump if within 1% of a snap level
  2540. zoom = inside ? Math.ceil(zoom / snap) * snap : Math.floor(zoom / snap) * snap;
  2541. }
  2542. return Math.max(min, Math.min(max, zoom));
  2543. },
  2544. // @method getSize(): Point
  2545. // Returns the current size of the map container (in pixels).
  2546. getSize: function () {
  2547. if (!this._size || this._sizeChanged) {
  2548. this._size = new L.Point(
  2549. this._container.clientWidth,
  2550. this._container.clientHeight);
  2551. this._sizeChanged = false;
  2552. }
  2553. return this._size.clone();
  2554. },
  2555. // @method getPixelBounds(): Bounds
  2556. // Returns the bounds of the current map view in projected pixel
  2557. // coordinates (sometimes useful in layer and overlay implementations).
  2558. getPixelBounds: function (center, zoom) {
  2559. var topLeftPoint = this._getTopLeftPoint(center, zoom);
  2560. return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));
  2561. },
  2562. // TODO: Check semantics - isn't the pixel origin the 0,0 coord relative to
  2563. // the map pane? "left point of the map layer" can be confusing, specially
  2564. // since there can be negative offsets.
  2565. // @method getPixelOrigin(): Point
  2566. // Returns the projected pixel coordinates of the top left point of
  2567. // the map layer (useful in custom layer and overlay implementations).
  2568. getPixelOrigin: function () {
  2569. this._checkIfLoaded();
  2570. return this._pixelOrigin;
  2571. },
  2572. // @method getPixelWorldBounds(zoom?: Number): Bounds
  2573. // Returns the world's bounds in pixel coordinates for zoom level `zoom`.
  2574. // If `zoom` is omitted, the map's current zoom level is used.
  2575. getPixelWorldBounds: function (zoom) {
  2576. return this.options.crs.getProjectedBounds(zoom === undefined ? this.getZoom() : zoom);
  2577. },
  2578. // @section Other Methods
  2579. // @method getPane(pane: String|HTMLElement): HTMLElement
  2580. // Returns a [map pane](#map-pane), given its name or its HTML element (its identity).
  2581. getPane: function (pane) {
  2582. return typeof pane === 'string' ? this._panes[pane] : pane;
  2583. },
  2584. // @method getPanes(): Object
  2585. // Returns a plain object containing the names of all [panes](#map-pane) as keys and
  2586. // the panes as values.
  2587. getPanes: function () {
  2588. return this._panes;
  2589. },
  2590. // @method getContainer: HTMLElement
  2591. // Returns the HTML element that contains the map.
  2592. getContainer: function () {
  2593. return this._container;
  2594. },
  2595. // @section Conversion Methods
  2596. // @method getZoomScale(toZoom: Number, fromZoom: Number): Number
  2597. // Returns the scale factor to be applied to a map transition from zoom level
  2598. // `fromZoom` to `toZoom`. Used internally to help with zoom animations.
  2599. getZoomScale: function (toZoom, fromZoom) {
  2600. // TODO replace with universal implementation after refactoring projections
  2601. var crs = this.options.crs;
  2602. fromZoom = fromZoom === undefined ? this._zoom : fromZoom;
  2603. return crs.scale(toZoom) / crs.scale(fromZoom);
  2604. },
  2605. // @method getScaleZoom(scale: Number, fromZoom: Number): Number
  2606. // Returns the zoom level that the map would end up at, if it is at `fromZoom`
  2607. // level and everything is scaled by a factor of `scale`. Inverse of
  2608. // [`getZoomScale`](#map-getZoomScale).
  2609. getScaleZoom: function (scale, fromZoom) {
  2610. var crs = this.options.crs;
  2611. fromZoom = fromZoom === undefined ? this._zoom : fromZoom;
  2612. var zoom = crs.zoom(scale * crs.scale(fromZoom));
  2613. return isNaN(zoom) ? Infinity : zoom;
  2614. },
  2615. // @method project(latlng: LatLng, zoom: Number): Point
  2616. // Projects a geographical coordinate `LatLng` according to the projection
  2617. // of the map's CRS, then scales it according to `zoom` and the CRS's
  2618. // `Transformation`. The result is pixel coordinate relative to
  2619. // the CRS origin.
  2620. project: function (latlng, zoom) {
  2621. zoom = zoom === undefined ? this._zoom : zoom;
  2622. return this.options.crs.latLngToPoint(L.latLng(latlng), zoom);
  2623. },
  2624. // @method unproject(point: Point, zoom: Number): LatLng
  2625. // Inverse of [`project`](#map-project).
  2626. unproject: function (point, zoom) {
  2627. zoom = zoom === undefined ? this._zoom : zoom;
  2628. return this.options.crs.pointToLatLng(L.point(point), zoom);
  2629. },
  2630. // @method layerPointToLatLng(point: Point): LatLng
  2631. // Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),
  2632. // returns the corresponding geographical coordinate (for the current zoom level).
  2633. layerPointToLatLng: function (point) {
  2634. var projectedPoint = L.point(point).add(this.getPixelOrigin());
  2635. return this.unproject(projectedPoint);
  2636. },
  2637. // @method latLngToLayerPoint(latlng: LatLng): Point
  2638. // Given a geographical coordinate, returns the corresponding pixel coordinate
  2639. // relative to the [origin pixel](#map-getpixelorigin).
  2640. latLngToLayerPoint: function (latlng) {
  2641. var projectedPoint = this.project(L.latLng(latlng))._round();
  2642. return projectedPoint._subtract(this.getPixelOrigin());
  2643. },
  2644. // @method wrapLatLng(latlng: LatLng): LatLng
  2645. // Returns a `LatLng` where `lat` and `lng` has been wrapped according to the
  2646. // map's CRS's `wrapLat` and `wrapLng` properties, if they are outside the
  2647. // CRS's bounds.
  2648. // By default this means longitude is wrapped around the dateline so its
  2649. // value is between -180 and +180 degrees.
  2650. wrapLatLng: function (latlng) {
  2651. return this.options.crs.wrapLatLng(L.latLng(latlng));
  2652. },
  2653. // @method distance(latlng1: LatLng, latlng2: LatLng): Number
  2654. // Returns the distance between two geographical coordinates according to
  2655. // the map's CRS. By default this measures distance in meters.
  2656. distance: function (latlng1, latlng2) {
  2657. return this.options.crs.distance(L.latLng(latlng1), L.latLng(latlng2));
  2658. },
  2659. // @method containerPointToLayerPoint(point: Point): Point
  2660. // Given a pixel coordinate relative to the map container, returns the corresponding
  2661. // pixel coordinate relative to the [origin pixel](#map-getpixelorigin).
  2662. containerPointToLayerPoint: function (point) { // (Point)
  2663. return L.point(point).subtract(this._getMapPanePos());
  2664. },
  2665. // @method layerPointToContainerPoint(point: Point): Point
  2666. // Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),
  2667. // returns the corresponding pixel coordinate relative to the map container.
  2668. layerPointToContainerPoint: function (point) { // (Point)
  2669. return L.point(point).add(this._getMapPanePos());
  2670. },
  2671. // @method containerPointToLatLng(point: Point): Point
  2672. // Given a pixel coordinate relative to the map container, returns
  2673. // the corresponding geographical coordinate (for the current zoom level).
  2674. containerPointToLatLng: function (point) {
  2675. var layerPoint = this.containerPointToLayerPoint(L.point(point));
  2676. return this.layerPointToLatLng(layerPoint);
  2677. },
  2678. // @method latLngToContainerPoint(latlng: LatLng): Point
  2679. // Given a geographical coordinate, returns the corresponding pixel coordinate
  2680. // relative to the map container.
  2681. latLngToContainerPoint: function (latlng) {
  2682. return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));
  2683. },
  2684. // @method mouseEventToContainerPoint(ev: MouseEvent): Point
  2685. // Given a MouseEvent object, returns the pixel coordinate relative to the
  2686. // map container where the event took place.
  2687. mouseEventToContainerPoint: function (e) {
  2688. return L.DomEvent.getMousePosition(e, this._container);
  2689. },
  2690. // @method mouseEventToLayerPoint(ev: MouseEvent): Point
  2691. // Given a MouseEvent object, returns the pixel coordinate relative to
  2692. // the [origin pixel](#map-getpixelorigin) where the event took place.
  2693. mouseEventToLayerPoint: function (e) {
  2694. return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));
  2695. },
  2696. // @method mouseEventToLatLng(ev: MouseEvent): LatLng
  2697. // Given a MouseEvent object, returns geographical coordinate where the
  2698. // event took place.
  2699. mouseEventToLatLng: function (e) { // (MouseEvent)
  2700. return this.layerPointToLatLng(this.mouseEventToLayerPoint(e));
  2701. },
  2702. // map initialization methods
  2703. _initContainer: function (id) {
  2704. var container = this._container = L.DomUtil.get(id);
  2705. if (!container) {
  2706. throw new Error('Map container not found.');
  2707. } else if (container._leaflet_id) {
  2708. throw new Error('Map container is already initialized.');
  2709. }
  2710. L.DomEvent.addListener(container, 'scroll', this._onScroll, this);
  2711. this._containerId = L.Util.stamp(container);
  2712. },
  2713. _initLayout: function () {
  2714. var container = this._container;
  2715. this._fadeAnimated = this.options.fadeAnimation && L.Browser.any3d;
  2716. L.DomUtil.addClass(container, 'leaflet-container' +
  2717. (L.Browser.touch ? ' leaflet-touch' : '') +
  2718. (L.Browser.retina ? ' leaflet-retina' : '') +
  2719. (L.Browser.ielt9 ? ' leaflet-oldie' : '') +
  2720. (L.Browser.safari ? ' leaflet-safari' : '') +
  2721. (this._fadeAnimated ? ' leaflet-fade-anim' : ''));
  2722. var position = L.DomUtil.getStyle(container, 'position');
  2723. if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
  2724. container.style.position = 'relative';
  2725. }
  2726. this._initPanes();
  2727. if (this._initControlPos) {
  2728. this._initControlPos();
  2729. }
  2730. },
  2731. _initPanes: function () {
  2732. var panes = this._panes = {};
  2733. this._paneRenderers = {};
  2734. // @section
  2735. //
  2736. // Panes are DOM elements used to control the ordering of layers on the map. You
  2737. // can access panes with [`map.getPane`](#map-getpane) or
  2738. // [`map.getPanes`](#map-getpanes) methods. New panes can be created with the
  2739. // [`map.createPane`](#map-createpane) method.
  2740. //
  2741. // Every map has the following default panes that differ only in zIndex.
  2742. //
  2743. // @pane mapPane: HTMLElement = 'auto'
  2744. // Pane that contains all other map panes
  2745. this._mapPane = this.createPane('mapPane', this._container);
  2746. L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
  2747. // @pane tilePane: HTMLElement = 200
  2748. // Pane for `GridLayer`s and `TileLayer`s
  2749. this.createPane('tilePane');
  2750. // @pane overlayPane: HTMLElement = 400
  2751. // Pane for vector overlays (`Path`s), like `Polyline`s and `Polygon`s
  2752. this.createPane('shadowPane');
  2753. // @pane shadowPane: HTMLElement = 500
  2754. // Pane for overlay shadows (e.g. `Marker` shadows)
  2755. this.createPane('overlayPane');
  2756. // @pane markerPane: HTMLElement = 600
  2757. // Pane for `Icon`s of `Marker`s
  2758. this.createPane('markerPane');
  2759. // @pane tooltipPane: HTMLElement = 650
  2760. // Pane for tooltip.
  2761. this.createPane('tooltipPane');
  2762. // @pane popupPane: HTMLElement = 700
  2763. // Pane for `Popup`s.
  2764. this.createPane('popupPane');
  2765. if (!this.options.markerZoomAnimation) {
  2766. L.DomUtil.addClass(panes.markerPane, 'leaflet-zoom-hide');
  2767. L.DomUtil.addClass(panes.shadowPane, 'leaflet-zoom-hide');
  2768. }
  2769. },
  2770. // private methods that modify map state
  2771. // @section Map state change events
  2772. _resetView: function (center, zoom) {
  2773. L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
  2774. var loading = !this._loaded;
  2775. this._loaded = true;
  2776. zoom = this._limitZoom(zoom);
  2777. this.fire('viewprereset');
  2778. var zoomChanged = this._zoom !== zoom;
  2779. this
  2780. ._moveStart(zoomChanged)
  2781. ._move(center, zoom)
  2782. ._moveEnd(zoomChanged);
  2783. // @event viewreset: Event
  2784. // Fired when the map needs to redraw its content (this usually happens
  2785. // on map zoom or load). Very useful for creating custom overlays.
  2786. this.fire('viewreset');
  2787. // @event load: Event
  2788. // Fired when the map is initialized (when its center and zoom are set
  2789. // for the first time).
  2790. if (loading) {
  2791. this.fire('load');
  2792. }
  2793. },
  2794. _moveStart: function (zoomChanged) {
  2795. // @event zoomstart: Event
  2796. // Fired when the map zoom is about to change (e.g. before zoom animation).
  2797. // @event movestart: Event
  2798. // Fired when the view of the map starts changing (e.g. user starts dragging the map).
  2799. if (zoomChanged) {
  2800. this.fire('zoomstart');
  2801. }
  2802. return this.fire('movestart');
  2803. },
  2804. _move: function (center, zoom, data) {
  2805. if (zoom === undefined) {
  2806. zoom = this._zoom;
  2807. }
  2808. var zoomChanged = this._zoom !== zoom;
  2809. this._zoom = zoom;
  2810. this._lastCenter = center;
  2811. this._pixelOrigin = this._getNewPixelOrigin(center);
  2812. // @event zoom: Event
  2813. // Fired repeatedly during any change in zoom level, including zoom
  2814. // and fly animations.
  2815. if (zoomChanged || (data && data.pinch)) { // Always fire 'zoom' if pinching because #3530
  2816. this.fire('zoom', data);
  2817. }
  2818. // @event move: Event
  2819. // Fired repeatedly during any movement of the map, including pan and
  2820. // fly animations.
  2821. return this.fire('move', data);
  2822. },
  2823. _moveEnd: function (zoomChanged) {
  2824. // @event zoomend: Event
  2825. // Fired when the map has changed, after any animations.
  2826. if (zoomChanged) {
  2827. this.fire('zoomend');
  2828. }
  2829. // @event moveend: Event
  2830. // Fired when the center of the map stops changing (e.g. user stopped
  2831. // dragging the map).
  2832. return this.fire('moveend');
  2833. },
  2834. _stop: function () {
  2835. L.Util.cancelAnimFrame(this._flyToFrame);
  2836. if (this._panAnim) {
  2837. this._panAnim.stop();
  2838. }
  2839. return this;
  2840. },
  2841. _rawPanBy: function (offset) {
  2842. L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
  2843. },
  2844. _getZoomSpan: function () {
  2845. return this.getMaxZoom() - this.getMinZoom();
  2846. },
  2847. _panInsideMaxBounds: function () {
  2848. if (!this._enforcingBounds) {
  2849. this.panInsideBounds(this.options.maxBounds);
  2850. }
  2851. },
  2852. _checkIfLoaded: function () {
  2853. if (!this._loaded) {
  2854. throw new Error('Set map center and zoom first.');
  2855. }
  2856. },
  2857. // DOM event handling
  2858. // @section Interaction events
  2859. _initEvents: function (remove) {
  2860. if (!L.DomEvent) { return; }
  2861. this._targets = {};
  2862. this._targets[L.stamp(this._container)] = this;
  2863. var onOff = remove ? 'off' : 'on';
  2864. // @event click: MouseEvent
  2865. // Fired when the user clicks (or taps) the map.
  2866. // @event dblclick: MouseEvent
  2867. // Fired when the user double-clicks (or double-taps) the map.
  2868. // @event mousedown: MouseEvent
  2869. // Fired when the user pushes the mouse button on the map.
  2870. // @event mouseup: MouseEvent
  2871. // Fired when the user releases the mouse button on the map.
  2872. // @event mouseover: MouseEvent
  2873. // Fired when the mouse enters the map.
  2874. // @event mouseout: MouseEvent
  2875. // Fired when the mouse leaves the map.
  2876. // @event mousemove: MouseEvent
  2877. // Fired while the mouse moves over the map.
  2878. // @event contextmenu: MouseEvent
  2879. // Fired when the user pushes the right mouse button on the map, prevents
  2880. // default browser context menu from showing if there are listeners on
  2881. // this event. Also fired on mobile when the user holds a single touch
  2882. // for a second (also called long press).
  2883. // @event keypress: KeyboardEvent
  2884. // Fired when the user presses a key from the keyboard while the map is focused.
  2885. L.DomEvent[onOff](this._container, 'click dblclick mousedown mouseup ' +
  2886. 'mouseover mouseout mousemove contextmenu keypress', this._handleDOMEvent, this);
  2887. if (this.options.trackResize) {
  2888. L.DomEvent[onOff](window, 'resize', this._onResize, this);
  2889. }
  2890. if (L.Browser.any3d && this.options.transform3DLimit) {
  2891. this[onOff]('moveend', this._onMoveEnd);
  2892. }
  2893. },
  2894. _onResize: function () {
  2895. L.Util.cancelAnimFrame(this._resizeRequest);
  2896. this._resizeRequest = L.Util.requestAnimFrame(
  2897. function () { this.invalidateSize({debounceMoveend: true}); }, this);
  2898. },
  2899. _onScroll: function () {
  2900. this._container.scrollTop = 0;
  2901. this._container.scrollLeft = 0;
  2902. },
  2903. _onMoveEnd: function () {
  2904. var pos = this._getMapPanePos();
  2905. if (Math.max(Math.abs(pos.x), Math.abs(pos.y)) >= this.options.transform3DLimit) {
  2906. // https://bugzilla.mozilla.org/show_bug.cgi?id=1203873 but Webkit also have
  2907. // a pixel offset on very high values, see: http://jsfiddle.net/dg6r5hhb/
  2908. this._resetView(this.getCenter(), this.getZoom());
  2909. }
  2910. },
  2911. _findEventTargets: function (e, type) {
  2912. var targets = [],
  2913. target,
  2914. isHover = type === 'mouseout' || type === 'mouseover',
  2915. src = e.target || e.srcElement,
  2916. dragging = false;
  2917. while (src) {
  2918. target = this._targets[L.stamp(src)];
  2919. if (target && (type === 'click' || type === 'preclick') && !e._simulated && this._draggableMoved(target)) {
  2920. // Prevent firing click after you just dragged an object.
  2921. dragging = true;
  2922. break;
  2923. }
  2924. if (target && target.listens(type, true)) {
  2925. if (isHover && !L.DomEvent._isExternalTarget(src, e)) { break; }
  2926. targets.push(target);
  2927. if (isHover) { break; }
  2928. }
  2929. if (src === this._container) { break; }
  2930. src = src.parentNode;
  2931. }
  2932. if (!targets.length && !dragging && !isHover && L.DomEvent._isExternalTarget(src, e)) {
  2933. targets = [this];
  2934. }
  2935. return targets;
  2936. },
  2937. _handleDOMEvent: function (e) {
  2938. if (!this._loaded || L.DomEvent._skipped(e)) { return; }
  2939. var type = e.type === 'keypress' && e.keyCode === 13 ? 'click' : e.type;
  2940. if (type === 'mousedown') {
  2941. // prevents outline when clicking on keyboard-focusable element
  2942. L.DomUtil.preventOutline(e.target || e.srcElement);
  2943. }
  2944. this._fireDOMEvent(e, type);
  2945. },
  2946. _fireDOMEvent: function (e, type, targets) {
  2947. if (e.type === 'click') {
  2948. // Fire a synthetic 'preclick' event which propagates up (mainly for closing popups).
  2949. // @event preclick: MouseEvent
  2950. // Fired before mouse click on the map (sometimes useful when you
  2951. // want something to happen on click before any existing click
  2952. // handlers start running).
  2953. var synth = L.Util.extend({}, e);
  2954. synth.type = 'preclick';
  2955. this._fireDOMEvent(synth, synth.type, targets);
  2956. }
  2957. if (e._stopped) { return; }
  2958. // Find the layer the event is propagating from and its parents.
  2959. targets = (targets || []).concat(this._findEventTargets(e, type));
  2960. if (!targets.length) { return; }
  2961. var target = targets[0];
  2962. if (type === 'contextmenu' && target.listens(type, true)) {
  2963. L.DomEvent.preventDefault(e);
  2964. }
  2965. var data = {
  2966. originalEvent: e
  2967. };
  2968. if (e.type !== 'keypress') {
  2969. var isMarker = target instanceof L.Marker;
  2970. data.containerPoint = isMarker ?
  2971. this.latLngToContainerPoint(target.getLatLng()) : this.mouseEventToContainerPoint(e);
  2972. data.layerPoint = this.containerPointToLayerPoint(data.containerPoint);
  2973. data.latlng = isMarker ? target.getLatLng() : this.layerPointToLatLng(data.layerPoint);
  2974. }
  2975. for (var i = 0; i < targets.length; i++) {
  2976. targets[i].fire(type, data, true);
  2977. if (data.originalEvent._stopped ||
  2978. (targets[i].options.nonBubblingEvents && L.Util.indexOf(targets[i].options.nonBubblingEvents, type) !== -1)) { return; }
  2979. }
  2980. },
  2981. _draggableMoved: function (obj) {
  2982. obj = obj.dragging && obj.dragging.enabled() ? obj : this;
  2983. return (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved());
  2984. },
  2985. _clearHandlers: function () {
  2986. for (var i = 0, len = this._handlers.length; i < len; i++) {
  2987. this._handlers[i].disable();
  2988. }
  2989. },
  2990. // @section Other Methods
  2991. // @method whenReady(fn: Function, context?: Object): this
  2992. // Runs the given function `fn` when the map gets initialized with
  2993. // a view (center and zoom) and at least one layer, or immediately
  2994. // if it's already initialized, optionally passing a function context.
  2995. whenReady: function (callback, context) {
  2996. if (this._loaded) {
  2997. callback.call(context || this, {target: this});
  2998. } else {
  2999. this.on('load', callback, context);
  3000. }
  3001. return this;
  3002. },
  3003. // private methods for getting map state
  3004. _getMapPanePos: function () {
  3005. return L.DomUtil.getPosition(this._mapPane) || new L.Point(0, 0);
  3006. },
  3007. _moved: function () {
  3008. var pos = this._getMapPanePos();
  3009. return pos && !pos.equals([0, 0]);
  3010. },
  3011. _getTopLeftPoint: function (center, zoom) {
  3012. var pixelOrigin = center && zoom !== undefined ?
  3013. this._getNewPixelOrigin(center, zoom) :
  3014. this.getPixelOrigin();
  3015. return pixelOrigin.subtract(this._getMapPanePos());
  3016. },
  3017. _getNewPixelOrigin: function (center, zoom) {
  3018. var viewHalf = this.getSize()._divideBy(2);
  3019. return this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round();
  3020. },
  3021. _latLngToNewLayerPoint: function (latlng, zoom, center) {
  3022. var topLeft = this._getNewPixelOrigin(center, zoom);
  3023. return this.project(latlng, zoom)._subtract(topLeft);
  3024. },
  3025. _latLngBoundsToNewLayerBounds: function (latLngBounds, zoom, center) {
  3026. var topLeft = this._getNewPixelOrigin(center, zoom);
  3027. return L.bounds([
  3028. this.project(latLngBounds.getSouthWest(), zoom)._subtract(topLeft),
  3029. this.project(latLngBounds.getNorthWest(), zoom)._subtract(topLeft),
  3030. this.project(latLngBounds.getSouthEast(), zoom)._subtract(topLeft),
  3031. this.project(latLngBounds.getNorthEast(), zoom)._subtract(topLeft)
  3032. ]);
  3033. },
  3034. // layer point of the current center
  3035. _getCenterLayerPoint: function () {
  3036. return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
  3037. },
  3038. // offset of the specified place to the current center in pixels
  3039. _getCenterOffset: function (latlng) {
  3040. return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
  3041. },
  3042. // adjust center for view to get inside bounds
  3043. _limitCenter: function (center, zoom, bounds) {
  3044. if (!bounds) { return center; }
  3045. var centerPoint = this.project(center, zoom),
  3046. viewHalf = this.getSize().divideBy(2),
  3047. viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),
  3048. offset = this._getBoundsOffset(viewBounds, bounds, zoom);
  3049. // If offset is less than a pixel, ignore.
  3050. // This prevents unstable projections from getting into
  3051. // an infinite loop of tiny offsets.
  3052. if (offset.round().equals([0, 0])) {
  3053. return center;
  3054. }
  3055. return this.unproject(centerPoint.add(offset), zoom);
  3056. },
  3057. // adjust offset for view to get inside bounds
  3058. _limitOffset: function (offset, bounds) {
  3059. if (!bounds) { return offset; }
  3060. var viewBounds = this.getPixelBounds(),
  3061. newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));
  3062. return offset.add(this._getBoundsOffset(newBounds, bounds));
  3063. },
  3064. // returns offset needed for pxBounds to get inside maxBounds at a specified zoom
  3065. _getBoundsOffset: function (pxBounds, maxBounds, zoom) {
  3066. var projectedMaxBounds = L.bounds(
  3067. this.project(maxBounds.getNorthEast(), zoom),
  3068. this.project(maxBounds.getSouthWest(), zoom)
  3069. ),
  3070. minOffset = projectedMaxBounds.min.subtract(pxBounds.min),
  3071. maxOffset = projectedMaxBounds.max.subtract(pxBounds.max),
  3072. dx = this._rebound(minOffset.x, -maxOffset.x),
  3073. dy = this._rebound(minOffset.y, -maxOffset.y);
  3074. return new L.Point(dx, dy);
  3075. },
  3076. _rebound: function (left, right) {
  3077. return left + right > 0 ?
  3078. Math.round(left - right) / 2 :
  3079. Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));
  3080. },
  3081. _limitZoom: function (zoom) {
  3082. var min = this.getMinZoom(),
  3083. max = this.getMaxZoom(),
  3084. snap = L.Browser.any3d ? this.options.zoomSnap : 1;
  3085. if (snap) {
  3086. zoom = Math.round(zoom / snap) * snap;
  3087. }
  3088. return Math.max(min, Math.min(max, zoom));
  3089. },
  3090. _onPanTransitionStep: function () {
  3091. this.fire('move');
  3092. },
  3093. _onPanTransitionEnd: function () {
  3094. L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');
  3095. this.fire('moveend');
  3096. },
  3097. _tryAnimatedPan: function (center, options) {
  3098. // difference between the new and current centers in pixels
  3099. var offset = this._getCenterOffset(center)._floor();
  3100. // don't animate too far unless animate: true specified in options
  3101. if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }
  3102. this.panBy(offset, options);
  3103. return true;
  3104. },
  3105. _createAnimProxy: function () {
  3106. var proxy = this._proxy = L.DomUtil.create('div', 'leaflet-proxy leaflet-zoom-animated');
  3107. this._panes.mapPane.appendChild(proxy);
  3108. this.on('zoomanim', function (e) {
  3109. var prop = L.DomUtil.TRANSFORM,
  3110. transform = proxy.style[prop];
  3111. L.DomUtil.setTransform(proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1));
  3112. // workaround for case when transform is the same and so transitionend event is not fired
  3113. if (transform === proxy.style[prop] && this._animatingZoom) {
  3114. this._onZoomTransitionEnd();
  3115. }
  3116. }, this);
  3117. this.on('load moveend', function () {
  3118. var c = this.getCenter(),
  3119. z = this.getZoom();
  3120. L.DomUtil.setTransform(proxy, this.project(c, z), this.getZoomScale(z, 1));
  3121. }, this);
  3122. },
  3123. _catchTransitionEnd: function (e) {
  3124. if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {
  3125. this._onZoomTransitionEnd();
  3126. }
  3127. },
  3128. _nothingToAnimate: function () {
  3129. return !this._container.getElementsByClassName('leaflet-zoom-animated').length;
  3130. },
  3131. _tryAnimatedZoom: function (center, zoom, options) {
  3132. if (this._animatingZoom) { return true; }
  3133. options = options || {};
  3134. // don't animate if disabled, not supported or zoom difference is too large
  3135. if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() ||
  3136. Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; }
  3137. // offset is the pixel coords of the zoom origin relative to the current center
  3138. var scale = this.getZoomScale(zoom),
  3139. offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale);
  3140. // don't animate if the zoom origin isn't within one screen from the current center, unless forced
  3141. if (options.animate !== true && !this.getSize().contains(offset)) { return false; }
  3142. L.Util.requestAnimFrame(function () {
  3143. this
  3144. ._moveStart(true)
  3145. ._animateZoom(center, zoom, true);
  3146. }, this);
  3147. return true;
  3148. },
  3149. _animateZoom: function (center, zoom, startAnim, noUpdate) {
  3150. if (startAnim) {
  3151. this._animatingZoom = true;
  3152. // remember what center/zoom to set after animation
  3153. this._animateToCenter = center;
  3154. this._animateToZoom = zoom;
  3155. L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');
  3156. }
  3157. // @event zoomanim: ZoomAnimEvent
  3158. // Fired on every frame of a zoom animation
  3159. this.fire('zoomanim', {
  3160. center: center,
  3161. zoom: zoom,
  3162. noUpdate: noUpdate
  3163. });
  3164. // Work around webkit not firing 'transitionend', see https://github.com/Leaflet/Leaflet/issues/3689, 2693
  3165. setTimeout(L.bind(this._onZoomTransitionEnd, this), 250);
  3166. },
  3167. _onZoomTransitionEnd: function () {
  3168. if (!this._animatingZoom) { return; }
  3169. L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');
  3170. this._animatingZoom = false;
  3171. this._move(this._animateToCenter, this._animateToZoom);
  3172. // This anim frame should prevent an obscure iOS webkit tile loading race condition.
  3173. L.Util.requestAnimFrame(function () {
  3174. this._moveEnd(true);
  3175. }, this);
  3176. }
  3177. });
  3178. // @section
  3179. // @factory L.map(id: String, options?: Map options)
  3180. // Instantiates a map object given the DOM ID of a `<div>` element
  3181. // and optionally an object literal with `Map options`.
  3182. //
  3183. // @alternative
  3184. // @factory L.map(el: HTMLElement, options?: Map options)
  3185. // Instantiates a map object given an instance of a `<div>` HTML element
  3186. // and optionally an object literal with `Map options`.
  3187. L.map = function (id, options) {
  3188. return new L.Map(id, options);
  3189. };
  3190. /*
  3191. * @class Layer
  3192. * @inherits Evented
  3193. * @aka L.Layer
  3194. * @aka ILayer
  3195. *
  3196. * A set of methods from the Layer base class that all Leaflet layers use.
  3197. * Inherits all methods, options and events from `L.Evented`.
  3198. *
  3199. * @example
  3200. *
  3201. * ```js
  3202. * var layer = L.Marker(latlng).addTo(map);
  3203. * layer.addTo(map);
  3204. * layer.remove();
  3205. * ```
  3206. *
  3207. * @event add: Event
  3208. * Fired after the layer is added to a map
  3209. *
  3210. * @event remove: Event
  3211. * Fired after the layer is removed from a map
  3212. */
  3213. L.Layer = L.Evented.extend({
  3214. // Classes extending `L.Layer` will inherit the following options:
  3215. options: {
  3216. // @option pane: String = 'overlayPane'
  3217. // By default the layer will be added to the map's [overlay pane](#map-overlaypane). Overriding this option will cause the layer to be placed on another pane by default.
  3218. pane: 'overlayPane',
  3219. nonBubblingEvents: [], // Array of events that should not be bubbled to DOM parents (like the map),
  3220. // @option attribution: String = null
  3221. // String to be shown in the attribution control, describes the layer data, e.g. "© Mapbox".
  3222. attribution: null,
  3223. },
  3224. /* @section
  3225. * Classes extending `L.Layer` will inherit the following methods:
  3226. *
  3227. * @method addTo(map: Map): this
  3228. * Adds the layer to the given map
  3229. */
  3230. addTo: function (map) {
  3231. map.addLayer(this);
  3232. return this;
  3233. },
  3234. // @method remove: this
  3235. // Removes the layer from the map it is currently active on.
  3236. remove: function () {
  3237. return this.removeFrom(this._map || this._mapToAdd);
  3238. },
  3239. // @method removeFrom(map: Map): this
  3240. // Removes the layer from the given map
  3241. removeFrom: function (obj) {
  3242. if (obj) {
  3243. obj.removeLayer(this);
  3244. }
  3245. return this;
  3246. },
  3247. // @method getPane(name? : String): HTMLElement
  3248. // Returns the `HTMLElement` representing the named pane on the map. If `name` is omitted, returns the pane for this layer.
  3249. getPane: function (name) {
  3250. return this._map.getPane(name ? (this.options[name] || name) : this.options.pane);
  3251. },
  3252. addInteractiveTarget: function (targetEl) {
  3253. this._map._targets[L.stamp(targetEl)] = this;
  3254. return this;
  3255. },
  3256. removeInteractiveTarget: function (targetEl) {
  3257. delete this._map._targets[L.stamp(targetEl)];
  3258. return this;
  3259. },
  3260. // @method getAttribution: String
  3261. // Used by the `attribution control`, returns the [attribution option](#gridlayer-attribution).
  3262. getAttribution: function () {
  3263. return this.options.attribution;
  3264. },
  3265. _layerAdd: function (e) {
  3266. var map = e.target;
  3267. // check in case layer gets added and then removed before the map is ready
  3268. if (!map.hasLayer(this)) { return; }
  3269. this._map = map;
  3270. this._zoomAnimated = map._zoomAnimated;
  3271. if (this.getEvents) {
  3272. var events = this.getEvents();
  3273. map.on(events, this);
  3274. this.once('remove', function () {
  3275. map.off(events, this);
  3276. }, this);
  3277. }
  3278. this.onAdd(map);
  3279. if (this.getAttribution && this._map.attributionControl) {
  3280. this._map.attributionControl.addAttribution(this.getAttribution());
  3281. }
  3282. this.fire('add');
  3283. map.fire('layeradd', {layer: this});
  3284. }
  3285. });
  3286. /* @section Extension methods
  3287. * @uninheritable
  3288. *
  3289. * Every layer should extend from `L.Layer` and (re-)implement the following methods.
  3290. *
  3291. * @method onAdd(map: Map): this
  3292. * Should contain code that creates DOM elements for the layer, adds them to `map panes` where they should belong and puts listeners on relevant map events. Called on [`map.addLayer(layer)`](#map-addlayer).
  3293. *
  3294. * @method onRemove(map: Map): this
  3295. * Should contain all clean up code that removes the layer's elements from the DOM and removes listeners previously added in [`onAdd`](#layer-onadd). Called on [`map.removeLayer(layer)`](#map-removelayer).
  3296. *
  3297. * @method getEvents(): Object
  3298. * This optional method should return an object like `{ viewreset: this._reset }` for [`addEventListener`](#evented-addeventlistener). The event handlers in this object will be automatically added and removed from the map with your layer.
  3299. *
  3300. * @method getAttribution(): String
  3301. * This optional method should return a string containing HTML to be shown on the `Attribution control` whenever the layer is visible.
  3302. *
  3303. * @method beforeAdd(map: Map): this
  3304. * Optional method. Called on [`map.addLayer(layer)`](#map-addlayer), before the layer is added to the map, before events are initialized, without waiting until the map is in a usable state. Use for early initialization only.
  3305. */
  3306. /* @namespace Map
  3307. * @section Layer events
  3308. *
  3309. * @event layeradd: LayerEvent
  3310. * Fired when a new layer is added to the map.
  3311. *
  3312. * @event layerremove: LayerEvent
  3313. * Fired when some layer is removed from the map
  3314. *
  3315. * @section Methods for Layers and Controls
  3316. */
  3317. L.Map.include({
  3318. // @method addLayer(layer: Layer): this
  3319. // Adds the given layer to the map
  3320. addLayer: function (layer) {
  3321. var id = L.stamp(layer);
  3322. if (this._layers[id]) { return this; }
  3323. this._layers[id] = layer;
  3324. layer._mapToAdd = this;
  3325. if (layer.beforeAdd) {
  3326. layer.beforeAdd(this);
  3327. }
  3328. this.whenReady(layer._layerAdd, layer);
  3329. return this;
  3330. },
  3331. // @method removeLayer(layer: Layer): this
  3332. // Removes the given layer from the map.
  3333. removeLayer: function (layer) {
  3334. var id = L.stamp(layer);
  3335. if (!this._layers[id]) { return this; }
  3336. if (this._loaded) {
  3337. layer.onRemove(this);
  3338. }
  3339. if (layer.getAttribution && this.attributionControl) {
  3340. this.attributionControl.removeAttribution(layer.getAttribution());
  3341. }
  3342. delete this._layers[id];
  3343. if (this._loaded) {
  3344. this.fire('layerremove', {layer: layer});
  3345. layer.fire('remove');
  3346. }
  3347. layer._map = layer._mapToAdd = null;
  3348. return this;
  3349. },
  3350. // @method hasLayer(layer: Layer): Boolean
  3351. // Returns `true` if the given layer is currently added to the map
  3352. hasLayer: function (layer) {
  3353. return !!layer && (L.stamp(layer) in this._layers);
  3354. },
  3355. /* @method eachLayer(fn: Function, context?: Object): this
  3356. * Iterates over the layers of the map, optionally specifying context of the iterator function.
  3357. * ```
  3358. * map.eachLayer(function(layer){
  3359. * layer.bindPopup('Hello');
  3360. * });
  3361. * ```
  3362. */
  3363. eachLayer: function (method, context) {
  3364. for (var i in this._layers) {
  3365. method.call(context, this._layers[i]);
  3366. }
  3367. return this;
  3368. },
  3369. _addLayers: function (layers) {
  3370. layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];
  3371. for (var i = 0, len = layers.length; i < len; i++) {
  3372. this.addLayer(layers[i]);
  3373. }
  3374. },
  3375. _addZoomLimit: function (layer) {
  3376. if (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) {
  3377. this._zoomBoundLayers[L.stamp(layer)] = layer;
  3378. this._updateZoomLevels();
  3379. }
  3380. },
  3381. _removeZoomLimit: function (layer) {
  3382. var id = L.stamp(layer);
  3383. if (this._zoomBoundLayers[id]) {
  3384. delete this._zoomBoundLayers[id];
  3385. this._updateZoomLevels();
  3386. }
  3387. },
  3388. _updateZoomLevels: function () {
  3389. var minZoom = Infinity,
  3390. maxZoom = -Infinity,
  3391. oldZoomSpan = this._getZoomSpan();
  3392. for (var i in this._zoomBoundLayers) {
  3393. var options = this._zoomBoundLayers[i].options;
  3394. minZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom);
  3395. maxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom);
  3396. }
  3397. this._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom;
  3398. this._layersMinZoom = minZoom === Infinity ? undefined : minZoom;
  3399. // @section Map state change events
  3400. // @event zoomlevelschange: Event
  3401. // Fired when the number of zoomlevels on the map is changed due
  3402. // to adding or removing a layer.
  3403. if (oldZoomSpan !== this._getZoomSpan()) {
  3404. this.fire('zoomlevelschange');
  3405. }
  3406. if (this.options.maxZoom === undefined && this._layersMaxZoom && this.getZoom() > this._layersMaxZoom) {
  3407. this.setZoom(this._layersMaxZoom);
  3408. }
  3409. if (this.options.minZoom === undefined && this._layersMinZoom && this.getZoom() < this._layersMinZoom) {
  3410. this.setZoom(this._layersMinZoom);
  3411. }
  3412. }
  3413. });
  3414. /*
  3415. * @namespace DomEvent
  3416. * Utility functions to work with the [DOM events](https://developer.mozilla.org/docs/Web/API/Event), used by Leaflet internally.
  3417. */
  3418. // Inspired by John Resig, Dean Edwards and YUI addEvent implementations.
  3419. var eventsKey = '_leaflet_events';
  3420. L.DomEvent = {
  3421. // @function on(el: HTMLElement, types: String, fn: Function, context?: Object): this
  3422. // Adds a listener function (`fn`) to a particular DOM event type of the
  3423. // element `el`. You can optionally specify the context of the listener
  3424. // (object the `this` keyword will point to). You can also pass several
  3425. // space-separated types (e.g. `'click dblclick'`).
  3426. // @alternative
  3427. // @function on(el: HTMLElement, eventMap: Object, context?: Object): this
  3428. // Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`
  3429. on: function (obj, types, fn, context) {
  3430. if (typeof types === 'object') {
  3431. for (var type in types) {
  3432. this._on(obj, type, types[type], fn);
  3433. }
  3434. } else {
  3435. types = L.Util.splitWords(types);
  3436. for (var i = 0, len = types.length; i < len; i++) {
  3437. this._on(obj, types[i], fn, context);
  3438. }
  3439. }
  3440. return this;
  3441. },
  3442. // @function off(el: HTMLElement, types: String, fn: Function, context?: Object): this
  3443. // Removes a previously added listener function. If no function is specified,
  3444. // it will remove all the listeners of that particular DOM event from the element.
  3445. // Note that if you passed a custom context to on, you must pass the same
  3446. // context to `off` in order to remove the listener.
  3447. // @alternative
  3448. // @function off(el: HTMLElement, eventMap: Object, context?: Object): this
  3449. // Removes a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`
  3450. off: function (obj, types, fn, context) {
  3451. if (typeof types === 'object') {
  3452. for (var type in types) {
  3453. this._off(obj, type, types[type], fn);
  3454. }
  3455. } else {
  3456. types = L.Util.splitWords(types);
  3457. for (var i = 0, len = types.length; i < len; i++) {
  3458. this._off(obj, types[i], fn, context);
  3459. }
  3460. }
  3461. return this;
  3462. },
  3463. _on: function (obj, type, fn, context) {
  3464. var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : '');
  3465. if (obj[eventsKey] && obj[eventsKey][id]) { return this; }
  3466. var handler = function (e) {
  3467. return fn.call(context || obj, e || window.event);
  3468. };
  3469. var originalHandler = handler;
  3470. if (L.Browser.pointer && type.indexOf('touch') === 0) {
  3471. this.addPointerListener(obj, type, handler, id);
  3472. } else if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) {
  3473. this.addDoubleTapListener(obj, handler, id);
  3474. } else if ('addEventListener' in obj) {
  3475. if (type === 'mousewheel') {
  3476. obj.addEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);
  3477. } else if ((type === 'mouseenter') || (type === 'mouseleave')) {
  3478. handler = function (e) {
  3479. e = e || window.event;
  3480. if (L.DomEvent._isExternalTarget(obj, e)) {
  3481. originalHandler(e);
  3482. }
  3483. };
  3484. obj.addEventListener(type === 'mouseenter' ? 'mouseover' : 'mouseout', handler, false);
  3485. } else {
  3486. if (type === 'click' && L.Browser.android) {
  3487. handler = function (e) {
  3488. return L.DomEvent._filterClick(e, originalHandler);
  3489. };
  3490. }
  3491. obj.addEventListener(type, handler, false);
  3492. }
  3493. } else if ('attachEvent' in obj) {
  3494. obj.attachEvent('on' + type, handler);
  3495. }
  3496. obj[eventsKey] = obj[eventsKey] || {};
  3497. obj[eventsKey][id] = handler;
  3498. return this;
  3499. },
  3500. _off: function (obj, type, fn, context) {
  3501. var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : ''),
  3502. handler = obj[eventsKey] && obj[eventsKey][id];
  3503. if (!handler) { return this; }
  3504. if (L.Browser.pointer && type.indexOf('touch') === 0) {
  3505. this.removePointerListener(obj, type, id);
  3506. } else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {
  3507. this.removeDoubleTapListener(obj, id);
  3508. } else if ('removeEventListener' in obj) {
  3509. if (type === 'mousewheel') {
  3510. obj.removeEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);
  3511. } else {
  3512. obj.removeEventListener(
  3513. type === 'mouseenter' ? 'mouseover' :
  3514. type === 'mouseleave' ? 'mouseout' : type, handler, false);
  3515. }
  3516. } else if ('detachEvent' in obj) {
  3517. obj.detachEvent('on' + type, handler);
  3518. }
  3519. obj[eventsKey][id] = null;
  3520. return this;
  3521. },
  3522. // @function stopPropagation(ev: DOMEvent): this
  3523. // Stop the given event from propagation to parent elements. Used inside the listener functions:
  3524. // ```js
  3525. // L.DomEvent.on(div, 'click', function (ev) {
  3526. // L.DomEvent.stopPropagation(ev);
  3527. // });
  3528. // ```
  3529. stopPropagation: function (e) {
  3530. if (e.stopPropagation) {
  3531. e.stopPropagation();
  3532. } else if (e.originalEvent) { // In case of Leaflet event.
  3533. e.originalEvent._stopped = true;
  3534. } else {
  3535. e.cancelBubble = true;
  3536. }
  3537. L.DomEvent._skipped(e);
  3538. return this;
  3539. },
  3540. // @function disableScrollPropagation(el: HTMLElement): this
  3541. // Adds `stopPropagation` to the element's `'mousewheel'` events (plus browser variants).
  3542. disableScrollPropagation: function (el) {
  3543. return L.DomEvent.on(el, 'mousewheel', L.DomEvent.stopPropagation);
  3544. },
  3545. // @function disableClickPropagation(el: HTMLElement): this
  3546. // Adds `stopPropagation` to the element's `'click'`, `'doubleclick'`,
  3547. // `'mousedown'` and `'touchstart'` events (plus browser variants).
  3548. disableClickPropagation: function (el) {
  3549. var stop = L.DomEvent.stopPropagation;
  3550. L.DomEvent.on(el, L.Draggable.START.join(' '), stop);
  3551. return L.DomEvent.on(el, {
  3552. click: L.DomEvent._fakeStop,
  3553. dblclick: stop
  3554. });
  3555. },
  3556. // @function preventDefault(ev: DOMEvent): this
  3557. // Prevents the default action of the DOM Event `ev` from happening (such as
  3558. // following a link in the href of the a element, or doing a POST request
  3559. // with page reload when a `<form>` is submitted).
  3560. // Use it inside listener functions.
  3561. preventDefault: function (e) {
  3562. if (e.preventDefault) {
  3563. e.preventDefault();
  3564. } else {
  3565. e.returnValue = false;
  3566. }
  3567. return this;
  3568. },
  3569. // @function stop(ev): this
  3570. // Does `stopPropagation` and `preventDefault` at the same time.
  3571. stop: function (e) {
  3572. return L.DomEvent
  3573. .preventDefault(e)
  3574. .stopPropagation(e);
  3575. },
  3576. // @function getMousePosition(ev: DOMEvent, container?: HTMLElement): Point
  3577. // Gets normalized mouse position from a DOM event relative to the
  3578. // `container` or to the whole page if not specified.
  3579. getMousePosition: function (e, container) {
  3580. if (!container) {
  3581. return new L.Point(e.clientX, e.clientY);
  3582. }
  3583. var rect = container.getBoundingClientRect();
  3584. return new L.Point(
  3585. e.clientX - rect.left - container.clientLeft,
  3586. e.clientY - rect.top - container.clientTop);
  3587. },
  3588. // Chrome on Win scrolls double the pixels as in other platforms (see #4538),
  3589. // and Firefox scrolls device pixels, not CSS pixels
  3590. _wheelPxFactor: (L.Browser.win && L.Browser.chrome) ? 2 :
  3591. L.Browser.gecko ? window.devicePixelRatio :
  3592. 1,
  3593. // @function getWheelDelta(ev: DOMEvent): Number
  3594. // Gets normalized wheel delta from a mousewheel DOM event, in vertical
  3595. // pixels scrolled (negative if scrolling down).
  3596. // Events from pointing devices without precise scrolling are mapped to
  3597. // a best guess of 60 pixels.
  3598. getWheelDelta: function (e) {
  3599. return (L.Browser.edge) ? e.wheelDeltaY / 2 : // Don't trust window-geometry-based delta
  3600. (e.deltaY && e.deltaMode === 0) ? -e.deltaY / L.DomEvent._wheelPxFactor : // Pixels
  3601. (e.deltaY && e.deltaMode === 1) ? -e.deltaY * 20 : // Lines
  3602. (e.deltaY && e.deltaMode === 2) ? -e.deltaY * 60 : // Pages
  3603. (e.deltaX || e.deltaZ) ? 0 : // Skip horizontal/depth wheel events
  3604. e.wheelDelta ? (e.wheelDeltaY || e.wheelDelta) / 2 : // Legacy IE pixels
  3605. (e.detail && Math.abs(e.detail) < 32765) ? -e.detail * 20 : // Legacy Moz lines
  3606. e.detail ? e.detail / -32765 * 60 : // Legacy Moz pages
  3607. 0;
  3608. },
  3609. _skipEvents: {},
  3610. _fakeStop: function (e) {
  3611. // fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e)
  3612. L.DomEvent._skipEvents[e.type] = true;
  3613. },
  3614. _skipped: function (e) {
  3615. var skipped = this._skipEvents[e.type];
  3616. // reset when checking, as it's only used in map container and propagates outside of the map
  3617. this._skipEvents[e.type] = false;
  3618. return skipped;
  3619. },
  3620. // check if element really left/entered the event target (for mouseenter/mouseleave)
  3621. _isExternalTarget: function (el, e) {
  3622. var related = e.relatedTarget;
  3623. if (!related) { return true; }
  3624. try {
  3625. while (related && (related !== el)) {
  3626. related = related.parentNode;
  3627. }
  3628. } catch (err) {
  3629. return false;
  3630. }
  3631. return (related !== el);
  3632. },
  3633. // this is a horrible workaround for a bug in Android where a single touch triggers two click events
  3634. _filterClick: function (e, handler) {
  3635. var timeStamp = (e.timeStamp || (e.originalEvent && e.originalEvent.timeStamp)),
  3636. elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick);
  3637. // are they closer together than 500ms yet more than 100ms?
  3638. // Android typically triggers them ~300ms apart while multiple listeners
  3639. // on the same event should be triggered far faster;
  3640. // or check if click is simulated on the element, and if it is, reject any non-simulated events
  3641. if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {
  3642. L.DomEvent.stop(e);
  3643. return;
  3644. }
  3645. L.DomEvent._lastClick = timeStamp;
  3646. handler(e);
  3647. }
  3648. };
  3649. // @function addListener(…): this
  3650. // Alias to [`L.DomEvent.on`](#domevent-on)
  3651. L.DomEvent.addListener = L.DomEvent.on;
  3652. // @function removeListener(…): this
  3653. // Alias to [`L.DomEvent.off`](#domevent-off)
  3654. L.DomEvent.removeListener = L.DomEvent.off;
  3655. /*
  3656. * @class PosAnimation
  3657. * @aka L.PosAnimation
  3658. * @inherits Evented
  3659. * Used internally for panning animations, utilizing CSS3 Transitions for modern browsers and a timer fallback for IE6-9.
  3660. *
  3661. * @example
  3662. * ```js
  3663. * var fx = new L.PosAnimation();
  3664. * fx.run(el, [300, 500], 0.5);
  3665. * ```
  3666. *
  3667. * @constructor L.PosAnimation()
  3668. * Creates a `PosAnimation` object.
  3669. *
  3670. */
  3671. L.PosAnimation = L.Evented.extend({
  3672. // @method run(el: HTMLElement, newPos: Point, duration?: Number, easeLinearity?: Number)
  3673. // Run an animation of a given element to a new position, optionally setting
  3674. // duration in seconds (`0.25` by default) and easing linearity factor (3rd
  3675. // argument of the [cubic bezier curve](http://cubic-bezier.com/#0,0,.5,1),
  3676. // `0.5` by default).
  3677. run: function (el, newPos, duration, easeLinearity) {
  3678. this.stop();
  3679. this._el = el;
  3680. this._inProgress = true;
  3681. this._duration = duration || 0.25;
  3682. this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);
  3683. this._startPos = L.DomUtil.getPosition(el);
  3684. this._offset = newPos.subtract(this._startPos);
  3685. this._startTime = +new Date();
  3686. // @event start: Event
  3687. // Fired when the animation starts
  3688. this.fire('start');
  3689. this._animate();
  3690. },
  3691. // @method stop()
  3692. // Stops the animation (if currently running).
  3693. stop: function () {
  3694. if (!this._inProgress) { return; }
  3695. this._step(true);
  3696. this._complete();
  3697. },
  3698. _animate: function () {
  3699. // animation loop
  3700. this._animId = L.Util.requestAnimFrame(this._animate, this);
  3701. this._step();
  3702. },
  3703. _step: function (round) {
  3704. var elapsed = (+new Date()) - this._startTime,
  3705. duration = this._duration * 1000;
  3706. if (elapsed < duration) {
  3707. this._runFrame(this._easeOut(elapsed / duration), round);
  3708. } else {
  3709. this._runFrame(1);
  3710. this._complete();
  3711. }
  3712. },
  3713. _runFrame: function (progress, round) {
  3714. var pos = this._startPos.add(this._offset.multiplyBy(progress));
  3715. if (round) {
  3716. pos._round();
  3717. }
  3718. L.DomUtil.setPosition(this._el, pos);
  3719. // @event step: Event
  3720. // Fired continuously during the animation.
  3721. this.fire('step');
  3722. },
  3723. _complete: function () {
  3724. L.Util.cancelAnimFrame(this._animId);
  3725. this._inProgress = false;
  3726. // @event end: Event
  3727. // Fired when the animation ends.
  3728. this.fire('end');
  3729. },
  3730. _easeOut: function (t) {
  3731. return 1 - Math.pow(1 - t, this._easeOutPower);
  3732. }
  3733. });
  3734. /*
  3735. * @namespace Projection
  3736. * @projection L.Projection.Mercator
  3737. *
  3738. * Elliptical Mercator projection — more complex than Spherical Mercator. Takes into account that Earth is a geoid, not a perfect sphere. Used by the EPSG:3395 CRS.
  3739. */
  3740. L.Projection.Mercator = {
  3741. R: 6378137,
  3742. R_MINOR: 6356752.314245179,
  3743. bounds: L.bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]),
  3744. project: function (latlng) {
  3745. var d = Math.PI / 180,
  3746. r = this.R,
  3747. y = latlng.lat * d,
  3748. tmp = this.R_MINOR / r,
  3749. e = Math.sqrt(1 - tmp * tmp),
  3750. con = e * Math.sin(y);
  3751. var ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2);
  3752. y = -r * Math.log(Math.max(ts, 1E-10));
  3753. return new L.Point(latlng.lng * d * r, y);
  3754. },
  3755. unproject: function (point) {
  3756. var d = 180 / Math.PI,
  3757. r = this.R,
  3758. tmp = this.R_MINOR / r,
  3759. e = Math.sqrt(1 - tmp * tmp),
  3760. ts = Math.exp(-point.y / r),
  3761. phi = Math.PI / 2 - 2 * Math.atan(ts);
  3762. for (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) {
  3763. con = e * Math.sin(phi);
  3764. con = Math.pow((1 - con) / (1 + con), e / 2);
  3765. dphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi;
  3766. phi += dphi;
  3767. }
  3768. return new L.LatLng(phi * d, point.x * d / r);
  3769. }
  3770. };
  3771. /*
  3772. * @namespace CRS
  3773. * @crs L.CRS.EPSG3395
  3774. *
  3775. * Rarely used by some commercial tile providers. Uses Elliptical Mercator projection.
  3776. */
  3777. L.CRS.EPSG3395 = L.extend({}, L.CRS.Earth, {
  3778. code: 'EPSG:3395',
  3779. projection: L.Projection.Mercator,
  3780. transformation: (function () {
  3781. var scale = 0.5 / (Math.PI * L.Projection.Mercator.R);
  3782. return new L.Transformation(scale, 0.5, -scale, 0.5);
  3783. }())
  3784. });
  3785. /*
  3786. * @class GridLayer
  3787. * @inherits Layer
  3788. * @aka L.GridLayer
  3789. *
  3790. * Generic class for handling a tiled grid of HTML elements. This is the base class for all tile layers and replaces `TileLayer.Canvas`.
  3791. * GridLayer can be extended to create a tiled grid of HTML elements like `<canvas>`, `<img>` or `<div>`. GridLayer will handle creating and animating these DOM elements for you.
  3792. *
  3793. *
  3794. * @section Synchronous usage
  3795. * @example
  3796. *
  3797. * To create a custom layer, extend GridLayer and implement the `createTile()` method, which will be passed a `Point` object with the `x`, `y`, and `z` (zoom level) coordinates to draw your tile.
  3798. *
  3799. * ```js
  3800. * var CanvasLayer = L.GridLayer.extend({
  3801. * createTile: function(coords){
  3802. * // create a <canvas> element for drawing
  3803. * var tile = L.DomUtil.create('canvas', 'leaflet-tile');
  3804. *
  3805. * // setup tile width and height according to the options
  3806. * var size = this.getTileSize();
  3807. * tile.width = size.x;
  3808. * tile.height = size.y;
  3809. *
  3810. * // get a canvas context and draw something on it using coords.x, coords.y and coords.z
  3811. * var ctx = tile.getContext('2d');
  3812. *
  3813. * // return the tile so it can be rendered on screen
  3814. * return tile;
  3815. * }
  3816. * });
  3817. * ```
  3818. *
  3819. * @section Asynchronous usage
  3820. * @example
  3821. *
  3822. * Tile creation can also be asynchronous, this is useful when using a third-party drawing library. Once the tile is finished drawing it can be passed to the `done()` callback.
  3823. *
  3824. * ```js
  3825. * var CanvasLayer = L.GridLayer.extend({
  3826. * createTile: function(coords, done){
  3827. * var error;
  3828. *
  3829. * // create a <canvas> element for drawing
  3830. * var tile = L.DomUtil.create('canvas', 'leaflet-tile');
  3831. *
  3832. * // setup tile width and height according to the options
  3833. * var size = this.getTileSize();
  3834. * tile.width = size.x;
  3835. * tile.height = size.y;
  3836. *
  3837. * // draw something asynchronously and pass the tile to the done() callback
  3838. * setTimeout(function() {
  3839. * done(error, tile);
  3840. * }, 1000);
  3841. *
  3842. * return tile;
  3843. * }
  3844. * });
  3845. * ```
  3846. *
  3847. * @section
  3848. */
  3849. L.GridLayer = L.Layer.extend({
  3850. // @section
  3851. // @aka GridLayer options
  3852. options: {
  3853. // @option tileSize: Number|Point = 256
  3854. // Width and height of tiles in the grid. Use a number if width and height are equal, or `L.point(width, height)` otherwise.
  3855. tileSize: 256,
  3856. // @option opacity: Number = 1.0
  3857. // Opacity of the tiles. Can be used in the `createTile()` function.
  3858. opacity: 1,
  3859. // @option updateWhenIdle: Boolean = depends
  3860. // If `false`, new tiles are loaded during panning, otherwise only after it (for better performance). `true` by default on mobile browsers, otherwise `false`.
  3861. updateWhenIdle: L.Browser.mobile,
  3862. // @option updateWhenZooming: Boolean = true
  3863. // By default, a smooth zoom animation (during a [touch zoom](#map-touchzoom) or a [`flyTo()`](#map-flyto)) will update grid layers every integer zoom level. Setting this option to `false` will update the grid layer only when the smooth animation ends.
  3864. updateWhenZooming: true,
  3865. // @option updateInterval: Number = 200
  3866. // Tiles will not update more than once every `updateInterval` milliseconds when panning.
  3867. updateInterval: 200,
  3868. // @option zIndex: Number = 1
  3869. // The explicit zIndex of the tile layer.
  3870. zIndex: 1,
  3871. // @option bounds: LatLngBounds = undefined
  3872. // If set, tiles will only be loaded inside the set `LatLngBounds`.
  3873. bounds: null,
  3874. // @option minZoom: Number = 0
  3875. // The minimum zoom level that tiles will be loaded at. By default the entire map.
  3876. minZoom: 0,
  3877. // @option maxZoom: Number = undefined
  3878. // The maximum zoom level that tiles will be loaded at.
  3879. maxZoom: undefined,
  3880. // @option noWrap: Boolean = false
  3881. // Whether the layer is wrapped around the antimeridian. If `true`, the
  3882. // GridLayer will only be displayed once at low zoom levels. Has no
  3883. // effect when the [map CRS](#map-crs) doesn't wrap around.
  3884. noWrap: false,
  3885. // @option pane: String = 'tilePane'
  3886. // `Map pane` where the grid layer will be added.
  3887. pane: 'tilePane',
  3888. // @option className: String = ''
  3889. // A custom class name to assign to the tile layer. Empty by default.
  3890. className: '',
  3891. // @option keepBuffer: Number = 2
  3892. // When panning the map, keep this many rows and columns of tiles before unloading them.
  3893. keepBuffer: 2
  3894. },
  3895. initialize: function (options) {
  3896. L.setOptions(this, options);
  3897. },
  3898. onAdd: function () {
  3899. this._initContainer();
  3900. this._levels = {};
  3901. this._tiles = {};
  3902. this._resetView();
  3903. this._update();
  3904. },
  3905. beforeAdd: function (map) {
  3906. map._addZoomLimit(this);
  3907. },
  3908. onRemove: function (map) {
  3909. this._removeAllTiles();
  3910. L.DomUtil.remove(this._container);
  3911. map._removeZoomLimit(this);
  3912. this._container = null;
  3913. this._tileZoom = null;
  3914. },
  3915. // @method bringToFront: this
  3916. // Brings the tile layer to the top of all tile layers.
  3917. bringToFront: function () {
  3918. if (this._map) {
  3919. L.DomUtil.toFront(this._container);
  3920. this._setAutoZIndex(Math.max);
  3921. }
  3922. return this;
  3923. },
  3924. // @method bringToBack: this
  3925. // Brings the tile layer to the bottom of all tile layers.
  3926. bringToBack: function () {
  3927. if (this._map) {
  3928. L.DomUtil.toBack(this._container);
  3929. this._setAutoZIndex(Math.min);
  3930. }
  3931. return this;
  3932. },
  3933. // @method getContainer: HTMLElement
  3934. // Returns the HTML element that contains the tiles for this layer.
  3935. getContainer: function () {
  3936. return this._container;
  3937. },
  3938. // @method setOpacity(opacity: Number): this
  3939. // Changes the [opacity](#gridlayer-opacity) of the grid layer.
  3940. setOpacity: function (opacity) {
  3941. this.options.opacity = opacity;
  3942. this._updateOpacity();
  3943. return this;
  3944. },
  3945. // @method setZIndex(zIndex: Number): this
  3946. // Changes the [zIndex](#gridlayer-zindex) of the grid layer.
  3947. setZIndex: function (zIndex) {
  3948. this.options.zIndex = zIndex;
  3949. this._updateZIndex();
  3950. return this;
  3951. },
  3952. // @method isLoading: Boolean
  3953. // Returns `true` if any tile in the grid layer has not finished loading.
  3954. isLoading: function () {
  3955. return this._loading;
  3956. },
  3957. // @method redraw: this
  3958. // Causes the layer to clear all the tiles and request them again.
  3959. redraw: function () {
  3960. if (this._map) {
  3961. this._removeAllTiles();
  3962. this._update();
  3963. }
  3964. return this;
  3965. },
  3966. getEvents: function () {
  3967. var events = {
  3968. viewprereset: this._invalidateAll,
  3969. viewreset: this._resetView,
  3970. zoom: this._resetView,
  3971. moveend: this._onMoveEnd
  3972. };
  3973. if (!this.options.updateWhenIdle) {
  3974. // update tiles on move, but not more often than once per given interval
  3975. if (!this._onMove) {
  3976. this._onMove = L.Util.throttle(this._onMoveEnd, this.options.updateInterval, this);
  3977. }
  3978. events.move = this._onMove;
  3979. }
  3980. if (this._zoomAnimated) {
  3981. events.zoomanim = this._animateZoom;
  3982. }
  3983. return events;
  3984. },
  3985. // @section Extension methods
  3986. // Layers extending `GridLayer` shall reimplement the following method.
  3987. // @method createTile(coords: Object, done?: Function): HTMLElement
  3988. // Called only internally, must be overriden by classes extending `GridLayer`.
  3989. // Returns the `HTMLElement` corresponding to the given `coords`. If the `done` callback
  3990. // is specified, it must be called when the tile has finished loading and drawing.
  3991. createTile: function () {
  3992. return document.createElement('div');
  3993. },
  3994. // @section
  3995. // @method getTileSize: Point
  3996. // Normalizes the [tileSize option](#gridlayer-tilesize) into a point. Used by the `createTile()` method.
  3997. getTileSize: function () {
  3998. var s = this.options.tileSize;
  3999. return s instanceof L.Point ? s : new L.Point(s, s);
  4000. },
  4001. _updateZIndex: function () {
  4002. if (this._container && this.options.zIndex !== undefined && this.options.zIndex !== null) {
  4003. this._container.style.zIndex = this.options.zIndex;
  4004. }
  4005. },
  4006. _setAutoZIndex: function (compare) {
  4007. // go through all other layers of the same pane, set zIndex to max + 1 (front) or min - 1 (back)
  4008. var layers = this.getPane().children,
  4009. edgeZIndex = -compare(-Infinity, Infinity); // -Infinity for max, Infinity for min
  4010. for (var i = 0, len = layers.length, zIndex; i < len; i++) {
  4011. zIndex = layers[i].style.zIndex;
  4012. if (layers[i] !== this._container && zIndex) {
  4013. edgeZIndex = compare(edgeZIndex, +zIndex);
  4014. }
  4015. }
  4016. if (isFinite(edgeZIndex)) {
  4017. this.options.zIndex = edgeZIndex + compare(-1, 1);
  4018. this._updateZIndex();
  4019. }
  4020. },
  4021. _updateOpacity: function () {
  4022. if (!this._map) { return; }
  4023. // IE doesn't inherit filter opacity properly, so we're forced to set it on tiles
  4024. if (L.Browser.ielt9) { return; }
  4025. L.DomUtil.setOpacity(this._container, this.options.opacity);
  4026. var now = +new Date(),
  4027. nextFrame = false,
  4028. willPrune = false;
  4029. for (var key in this._tiles) {
  4030. var tile = this._tiles[key];
  4031. if (!tile.current || !tile.loaded) { continue; }
  4032. var fade = Math.min(1, (now - tile.loaded) / 200);
  4033. L.DomUtil.setOpacity(tile.el, fade);
  4034. if (fade < 1) {
  4035. nextFrame = true;
  4036. } else {
  4037. if (tile.active) { willPrune = true; }
  4038. tile.active = true;
  4039. }
  4040. }
  4041. if (willPrune && !this._noPrune) { this._pruneTiles(); }
  4042. if (nextFrame) {
  4043. L.Util.cancelAnimFrame(this._fadeFrame);
  4044. this._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);
  4045. }
  4046. },
  4047. _initContainer: function () {
  4048. if (this._container) { return; }
  4049. this._container = L.DomUtil.create('div', 'leaflet-layer ' + (this.options.className || ''));
  4050. this._updateZIndex();
  4051. if (this.options.opacity < 1) {
  4052. this._updateOpacity();
  4053. }
  4054. this.getPane().appendChild(this._container);
  4055. },
  4056. _updateLevels: function () {
  4057. var zoom = this._tileZoom,
  4058. maxZoom = this.options.maxZoom;
  4059. if (zoom === undefined) { return undefined; }
  4060. for (var z in this._levels) {
  4061. if (this._levels[z].el.children.length || z === zoom) {
  4062. this._levels[z].el.style.zIndex = maxZoom - Math.abs(zoom - z);
  4063. } else {
  4064. L.DomUtil.remove(this._levels[z].el);
  4065. this._removeTilesAtZoom(z);
  4066. delete this._levels[z];
  4067. }
  4068. }
  4069. var level = this._levels[zoom],
  4070. map = this._map;
  4071. if (!level) {
  4072. level = this._levels[zoom] = {};
  4073. level.el = L.DomUtil.create('div', 'leaflet-tile-container leaflet-zoom-animated', this._container);
  4074. level.el.style.zIndex = maxZoom;
  4075. level.origin = map.project(map.unproject(map.getPixelOrigin()), zoom).round();
  4076. level.zoom = zoom;
  4077. this._setZoomTransform(level, map.getCenter(), map.getZoom());
  4078. // force the browser to consider the newly added element for transition
  4079. L.Util.falseFn(level.el.offsetWidth);
  4080. }
  4081. this._level = level;
  4082. return level;
  4083. },
  4084. _pruneTiles: function () {
  4085. if (!this._map) {
  4086. return;
  4087. }
  4088. var key, tile;
  4089. var zoom = this._map.getZoom();
  4090. if (zoom > this.options.maxZoom ||
  4091. zoom < this.options.minZoom) {
  4092. this._removeAllTiles();
  4093. return;
  4094. }
  4095. for (key in this._tiles) {
  4096. tile = this._tiles[key];
  4097. tile.retain = tile.current;
  4098. }
  4099. for (key in this._tiles) {
  4100. tile = this._tiles[key];
  4101. if (tile.current && !tile.active) {
  4102. var coords = tile.coords;
  4103. if (!this._retainParent(coords.x, coords.y, coords.z, coords.z - 5)) {
  4104. this._retainChildren(coords.x, coords.y, coords.z, coords.z + 2);
  4105. }
  4106. }
  4107. }
  4108. for (key in this._tiles) {
  4109. if (!this._tiles[key].retain) {
  4110. this._removeTile(key);
  4111. }
  4112. }
  4113. },
  4114. _removeTilesAtZoom: function (zoom) {
  4115. for (var key in this._tiles) {
  4116. if (this._tiles[key].coords.z !== zoom) {
  4117. continue;
  4118. }
  4119. this._removeTile(key);
  4120. }
  4121. },
  4122. _removeAllTiles: function () {
  4123. for (var key in this._tiles) {
  4124. this._removeTile(key);
  4125. }
  4126. },
  4127. _invalidateAll: function () {
  4128. for (var z in this._levels) {
  4129. L.DomUtil.remove(this._levels[z].el);
  4130. delete this._levels[z];
  4131. }
  4132. this._removeAllTiles();
  4133. this._tileZoom = null;
  4134. },
  4135. _retainParent: function (x, y, z, minZoom) {
  4136. var x2 = Math.floor(x / 2),
  4137. y2 = Math.floor(y / 2),
  4138. z2 = z - 1,
  4139. coords2 = new L.Point(+x2, +y2);
  4140. coords2.z = +z2;
  4141. var key = this._tileCoordsToKey(coords2),
  4142. tile = this._tiles[key];
  4143. if (tile && tile.active) {
  4144. tile.retain = true;
  4145. return true;
  4146. } else if (tile && tile.loaded) {
  4147. tile.retain = true;
  4148. }
  4149. if (z2 > minZoom) {
  4150. return this._retainParent(x2, y2, z2, minZoom);
  4151. }
  4152. return false;
  4153. },
  4154. _retainChildren: function (x, y, z, maxZoom) {
  4155. for (var i = 2 * x; i < 2 * x + 2; i++) {
  4156. for (var j = 2 * y; j < 2 * y + 2; j++) {
  4157. var coords = new L.Point(i, j);
  4158. coords.z = z + 1;
  4159. var key = this._tileCoordsToKey(coords),
  4160. tile = this._tiles[key];
  4161. if (tile && tile.active) {
  4162. tile.retain = true;
  4163. continue;
  4164. } else if (tile && tile.loaded) {
  4165. tile.retain = true;
  4166. }
  4167. if (z + 1 < maxZoom) {
  4168. this._retainChildren(i, j, z + 1, maxZoom);
  4169. }
  4170. }
  4171. }
  4172. },
  4173. _resetView: function (e) {
  4174. var animating = e && (e.pinch || e.flyTo);
  4175. this._setView(this._map.getCenter(), this._map.getZoom(), animating, animating);
  4176. },
  4177. _animateZoom: function (e) {
  4178. this._setView(e.center, e.zoom, true, e.noUpdate);
  4179. },
  4180. _setView: function (center, zoom, noPrune, noUpdate) {
  4181. var tileZoom = Math.round(zoom);
  4182. if ((this.options.maxZoom !== undefined && tileZoom > this.options.maxZoom) ||
  4183. (this.options.minZoom !== undefined && tileZoom < this.options.minZoom)) {
  4184. tileZoom = undefined;
  4185. }
  4186. var tileZoomChanged = this.options.updateWhenZooming && (tileZoom !== this._tileZoom);
  4187. if (!noUpdate || tileZoomChanged) {
  4188. this._tileZoom = tileZoom;
  4189. if (this._abortLoading) {
  4190. this._abortLoading();
  4191. }
  4192. this._updateLevels();
  4193. this._resetGrid();
  4194. if (tileZoom !== undefined) {
  4195. this._update(center);
  4196. }
  4197. if (!noPrune) {
  4198. this._pruneTiles();
  4199. }
  4200. // Flag to prevent _updateOpacity from pruning tiles during
  4201. // a zoom anim or a pinch gesture
  4202. this._noPrune = !!noPrune;
  4203. }
  4204. this._setZoomTransforms(center, zoom);
  4205. },
  4206. _setZoomTransforms: function (center, zoom) {
  4207. for (var i in this._levels) {
  4208. this._setZoomTransform(this._levels[i], center, zoom);
  4209. }
  4210. },
  4211. _setZoomTransform: function (level, center, zoom) {
  4212. var scale = this._map.getZoomScale(zoom, level.zoom),
  4213. translate = level.origin.multiplyBy(scale)
  4214. .subtract(this._map._getNewPixelOrigin(center, zoom)).round();
  4215. if (L.Browser.any3d) {
  4216. L.DomUtil.setTransform(level.el, translate, scale);
  4217. } else {
  4218. L.DomUtil.setPosition(level.el, translate);
  4219. }
  4220. },
  4221. _resetGrid: function () {
  4222. var map = this._map,
  4223. crs = map.options.crs,
  4224. tileSize = this._tileSize = this.getTileSize(),
  4225. tileZoom = this._tileZoom;
  4226. var bounds = this._map.getPixelWorldBounds(this._tileZoom);
  4227. if (bounds) {
  4228. this._globalTileRange = this._pxBoundsToTileRange(bounds);
  4229. }
  4230. this._wrapX = crs.wrapLng && !this.options.noWrap && [
  4231. Math.floor(map.project([0, crs.wrapLng[0]], tileZoom).x / tileSize.x),
  4232. Math.ceil(map.project([0, crs.wrapLng[1]], tileZoom).x / tileSize.y)
  4233. ];
  4234. this._wrapY = crs.wrapLat && !this.options.noWrap && [
  4235. Math.floor(map.project([crs.wrapLat[0], 0], tileZoom).y / tileSize.x),
  4236. Math.ceil(map.project([crs.wrapLat[1], 0], tileZoom).y / tileSize.y)
  4237. ];
  4238. },
  4239. _onMoveEnd: function () {
  4240. if (!this._map || this._map._animatingZoom) { return; }
  4241. this._update();
  4242. },
  4243. _getTiledPixelBounds: function (center) {
  4244. var map = this._map,
  4245. mapZoom = map._animatingZoom ? Math.max(map._animateToZoom, map.getZoom()) : map.getZoom(),
  4246. scale = map.getZoomScale(mapZoom, this._tileZoom),
  4247. pixelCenter = map.project(center, this._tileZoom).floor(),
  4248. halfSize = map.getSize().divideBy(scale * 2);
  4249. return new L.Bounds(pixelCenter.subtract(halfSize), pixelCenter.add(halfSize));
  4250. },
  4251. // Private method to load tiles in the grid's active zoom level according to map bounds
  4252. _update: function (center) {
  4253. var map = this._map;
  4254. if (!map) { return; }
  4255. var zoom = map.getZoom();
  4256. if (center === undefined) { center = map.getCenter(); }
  4257. if (this._tileZoom === undefined) { return; } // if out of minzoom/maxzoom
  4258. var pixelBounds = this._getTiledPixelBounds(center),
  4259. tileRange = this._pxBoundsToTileRange(pixelBounds),
  4260. tileCenter = tileRange.getCenter(),
  4261. queue = [],
  4262. margin = this.options.keepBuffer,
  4263. noPruneRange = new L.Bounds(tileRange.getBottomLeft().subtract([margin, -margin]),
  4264. tileRange.getTopRight().add([margin, -margin]));
  4265. for (var key in this._tiles) {
  4266. var c = this._tiles[key].coords;
  4267. if (c.z !== this._tileZoom || !noPruneRange.contains(L.point(c.x, c.y))) {
  4268. this._tiles[key].current = false;
  4269. }
  4270. }
  4271. // _update just loads more tiles. If the tile zoom level differs too much
  4272. // from the map's, let _setView reset levels and prune old tiles.
  4273. if (Math.abs(zoom - this._tileZoom) > 1) { this._setView(center, zoom); return; }
  4274. // create a queue of coordinates to load tiles from
  4275. for (var j = tileRange.min.y; j <= tileRange.max.y; j++) {
  4276. for (var i = tileRange.min.x; i <= tileRange.max.x; i++) {
  4277. var coords = new L.Point(i, j);
  4278. coords.z = this._tileZoom;
  4279. if (!this._isValidTile(coords)) { continue; }
  4280. var tile = this._tiles[this._tileCoordsToKey(coords)];
  4281. if (tile) {
  4282. tile.current = true;
  4283. } else {
  4284. queue.push(coords);
  4285. }
  4286. }
  4287. }
  4288. // sort tile queue to load tiles in order of their distance to center
  4289. queue.sort(function (a, b) {
  4290. return a.distanceTo(tileCenter) - b.distanceTo(tileCenter);
  4291. });
  4292. if (queue.length !== 0) {
  4293. // if it's the first batch of tiles to load
  4294. if (!this._loading) {
  4295. this._loading = true;
  4296. // @event loading: Event
  4297. // Fired when the grid layer starts loading tiles.
  4298. this.fire('loading');
  4299. }
  4300. // create DOM fragment to append tiles in one batch
  4301. var fragment = document.createDocumentFragment();
  4302. for (i = 0; i < queue.length; i++) {
  4303. this._addTile(queue[i], fragment);
  4304. }
  4305. this._level.el.appendChild(fragment);
  4306. }
  4307. },
  4308. _isValidTile: function (coords) {
  4309. var crs = this._map.options.crs;
  4310. if (!crs.infinite) {
  4311. // don't load tile if it's out of bounds and not wrapped
  4312. var bounds = this._globalTileRange;
  4313. if ((!crs.wrapLng && (coords.x < bounds.min.x || coords.x > bounds.max.x)) ||
  4314. (!crs.wrapLat && (coords.y < bounds.min.y || coords.y > bounds.max.y))) { return false; }
  4315. }
  4316. if (!this.options.bounds) { return true; }
  4317. // don't load tile if it doesn't intersect the bounds in options
  4318. var tileBounds = this._tileCoordsToBounds(coords);
  4319. return L.latLngBounds(this.options.bounds).overlaps(tileBounds);
  4320. },
  4321. _keyToBounds: function (key) {
  4322. return this._tileCoordsToBounds(this._keyToTileCoords(key));
  4323. },
  4324. // converts tile coordinates to its geographical bounds
  4325. _tileCoordsToBounds: function (coords) {
  4326. var map = this._map,
  4327. tileSize = this.getTileSize(),
  4328. nwPoint = coords.scaleBy(tileSize),
  4329. sePoint = nwPoint.add(tileSize),
  4330. nw = map.unproject(nwPoint, coords.z),
  4331. se = map.unproject(sePoint, coords.z);
  4332. if (!this.options.noWrap) {
  4333. nw = map.wrapLatLng(nw);
  4334. se = map.wrapLatLng(se);
  4335. }
  4336. return new L.LatLngBounds(nw, se);
  4337. },
  4338. // converts tile coordinates to key for the tile cache
  4339. _tileCoordsToKey: function (coords) {
  4340. return coords.x + ':' + coords.y + ':' + coords.z;
  4341. },
  4342. // converts tile cache key to coordinates
  4343. _keyToTileCoords: function (key) {
  4344. var k = key.split(':'),
  4345. coords = new L.Point(+k[0], +k[1]);
  4346. coords.z = +k[2];
  4347. return coords;
  4348. },
  4349. _removeTile: function (key) {
  4350. var tile = this._tiles[key];
  4351. if (!tile) { return; }
  4352. L.DomUtil.remove(tile.el);
  4353. delete this._tiles[key];
  4354. // @event tileunload: TileEvent
  4355. // Fired when a tile is removed (e.g. when a tile goes off the screen).
  4356. this.fire('tileunload', {
  4357. tile: tile.el,
  4358. coords: this._keyToTileCoords(key)
  4359. });
  4360. },
  4361. _initTile: function (tile) {
  4362. L.DomUtil.addClass(tile, 'leaflet-tile');
  4363. var tileSize = this.getTileSize();
  4364. tile.style.width = tileSize.x + 'px';
  4365. tile.style.height = tileSize.y + 'px';
  4366. tile.onselectstart = L.Util.falseFn;
  4367. tile.onmousemove = L.Util.falseFn;
  4368. // update opacity on tiles in IE7-8 because of filter inheritance problems
  4369. if (L.Browser.ielt9 && this.options.opacity < 1) {
  4370. L.DomUtil.setOpacity(tile, this.options.opacity);
  4371. }
  4372. // without this hack, tiles disappear after zoom on Chrome for Android
  4373. // https://github.com/Leaflet/Leaflet/issues/2078
  4374. if (L.Browser.android && !L.Browser.android23) {
  4375. tile.style.WebkitBackfaceVisibility = 'hidden';
  4376. }
  4377. },
  4378. _addTile: function (coords, container) {
  4379. var tilePos = this._getTilePos(coords),
  4380. key = this._tileCoordsToKey(coords);
  4381. var tile = this.createTile(this._wrapCoords(coords), L.bind(this._tileReady, this, coords));
  4382. this._initTile(tile);
  4383. // if createTile is defined with a second argument ("done" callback),
  4384. // we know that tile is async and will be ready later; otherwise
  4385. if (this.createTile.length < 2) {
  4386. // mark tile as ready, but delay one frame for opacity animation to happen
  4387. L.Util.requestAnimFrame(L.bind(this._tileReady, this, coords, null, tile));
  4388. }
  4389. L.DomUtil.setPosition(tile, tilePos);
  4390. // save tile in cache
  4391. this._tiles[key] = {
  4392. el: tile,
  4393. coords: coords,
  4394. current: true
  4395. };
  4396. container.appendChild(tile);
  4397. // @event tileloadstart: TileEvent
  4398. // Fired when a tile is requested and starts loading.
  4399. this.fire('tileloadstart', {
  4400. tile: tile,
  4401. coords: coords
  4402. });
  4403. },
  4404. _tileReady: function (coords, err, tile) {
  4405. if (!this._map) { return; }
  4406. if (err) {
  4407. // @event tileerror: TileErrorEvent
  4408. // Fired when there is an error loading a tile.
  4409. this.fire('tileerror', {
  4410. error: err,
  4411. tile: tile,
  4412. coords: coords
  4413. });
  4414. }
  4415. var key = this._tileCoordsToKey(coords);
  4416. tile = this._tiles[key];
  4417. if (!tile) { return; }
  4418. tile.loaded = +new Date();
  4419. if (this._map._fadeAnimated) {
  4420. L.DomUtil.setOpacity(tile.el, 0);
  4421. L.Util.cancelAnimFrame(this._fadeFrame);
  4422. this._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);
  4423. } else {
  4424. tile.active = true;
  4425. this._pruneTiles();
  4426. }
  4427. if (!err) {
  4428. L.DomUtil.addClass(tile.el, 'leaflet-tile-loaded');
  4429. // @event tileload: TileEvent
  4430. // Fired when a tile loads.
  4431. this.fire('tileload', {
  4432. tile: tile.el,
  4433. coords: coords
  4434. });
  4435. }
  4436. if (this._noTilesToLoad()) {
  4437. this._loading = false;
  4438. // @event load: Event
  4439. // Fired when the grid layer loaded all visible tiles.
  4440. this.fire('load');
  4441. if (L.Browser.ielt9 || !this._map._fadeAnimated) {
  4442. L.Util.requestAnimFrame(this._pruneTiles, this);
  4443. } else {
  4444. // Wait a bit more than 0.2 secs (the duration of the tile fade-in)
  4445. // to trigger a pruning.
  4446. setTimeout(L.bind(this._pruneTiles, this), 250);
  4447. }
  4448. }
  4449. },
  4450. _getTilePos: function (coords) {
  4451. return coords.scaleBy(this.getTileSize()).subtract(this._level.origin);
  4452. },
  4453. _wrapCoords: function (coords) {
  4454. var newCoords = new L.Point(
  4455. this._wrapX ? L.Util.wrapNum(coords.x, this._wrapX) : coords.x,
  4456. this._wrapY ? L.Util.wrapNum(coords.y, this._wrapY) : coords.y);
  4457. newCoords.z = coords.z;
  4458. return newCoords;
  4459. },
  4460. _pxBoundsToTileRange: function (bounds) {
  4461. var tileSize = this.getTileSize();
  4462. return new L.Bounds(
  4463. bounds.min.unscaleBy(tileSize).floor(),
  4464. bounds.max.unscaleBy(tileSize).ceil().subtract([1, 1]));
  4465. },
  4466. _noTilesToLoad: function () {
  4467. for (var key in this._tiles) {
  4468. if (!this._tiles[key].loaded) { return false; }
  4469. }
  4470. return true;
  4471. }
  4472. });
  4473. // @factory L.gridLayer(options?: GridLayer options)
  4474. // Creates a new instance of GridLayer with the supplied options.
  4475. L.gridLayer = function (options) {
  4476. return new L.GridLayer(options);
  4477. };
  4478. /*
  4479. * @class TileLayer
  4480. * @inherits GridLayer
  4481. * @aka L.TileLayer
  4482. * Used to load and display tile layers on the map. Extends `GridLayer`.
  4483. *
  4484. * @example
  4485. *
  4486. * ```js
  4487. * L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png?{foo}', {foo: 'bar'}).addTo(map);
  4488. * ```
  4489. *
  4490. * @section URL template
  4491. * @example
  4492. *
  4493. * A string of the following form:
  4494. *
  4495. * ```
  4496. * 'http://{s}.somedomain.com/blabla/{z}/{x}/{y}{r}.png'
  4497. * ```
  4498. *
  4499. * `{s}` means one of the available subdomains (used sequentially to help with browser parallel requests per domain limitation; subdomain values are specified in options; `a`, `b` or `c` by default, can be omitted), `{z}` — zoom level, `{x}` and `{y}` — tile coordinates. `{r}` can be used to add @2x to the URL to load retina tiles.
  4500. *
  4501. * You can use custom keys in the template, which will be [evaluated](#util-template) from TileLayer options, like this:
  4502. *
  4503. * ```
  4504. * L.tileLayer('http://{s}.somedomain.com/{foo}/{z}/{x}/{y}.png', {foo: 'bar'});
  4505. * ```
  4506. */
  4507. L.TileLayer = L.GridLayer.extend({
  4508. // @section
  4509. // @aka TileLayer options
  4510. options: {
  4511. // @option minZoom: Number = 0
  4512. // Minimum zoom number.
  4513. minZoom: 0,
  4514. // @option maxZoom: Number = 18
  4515. // Maximum zoom number.
  4516. maxZoom: 18,
  4517. // @option maxNativeZoom: Number = null
  4518. // Maximum zoom number the tile source has available. If it is specified,
  4519. // the tiles on all zoom levels higher than `maxNativeZoom` will be loaded
  4520. // from `maxNativeZoom` level and auto-scaled.
  4521. maxNativeZoom: null,
  4522. // @option minNativeZoom: Number = null
  4523. // Minimum zoom number the tile source has available. If it is specified,
  4524. // the tiles on all zoom levels lower than `minNativeZoom` will be loaded
  4525. // from `minNativeZoom` level and auto-scaled.
  4526. minNativeZoom: null,
  4527. // @option subdomains: String|String[] = 'abc'
  4528. // Subdomains of the tile service. Can be passed in the form of one string (where each letter is a subdomain name) or an array of strings.
  4529. subdomains: 'abc',
  4530. // @option errorTileUrl: String = ''
  4531. // URL to the tile image to show in place of the tile that failed to load.
  4532. errorTileUrl: '',
  4533. // @option zoomOffset: Number = 0
  4534. // The zoom number used in tile URLs will be offset with this value.
  4535. zoomOffset: 0,
  4536. // @option tms: Boolean = false
  4537. // If `true`, inverses Y axis numbering for tiles (turn this on for [TMS](https://en.wikipedia.org/wiki/Tile_Map_Service) services).
  4538. tms: false,
  4539. // @option zoomReverse: Boolean = false
  4540. // If set to true, the zoom number used in tile URLs will be reversed (`maxZoom - zoom` instead of `zoom`)
  4541. zoomReverse: false,
  4542. // @option detectRetina: Boolean = false
  4543. // If `true` and user is on a retina display, it will request four tiles of half the specified size and a bigger zoom level in place of one to utilize the high resolution.
  4544. detectRetina: false,
  4545. // @option crossOrigin: Boolean = false
  4546. // If true, all tiles will have their crossOrigin attribute set to ''. This is needed if you want to access tile pixel data.
  4547. crossOrigin: false
  4548. },
  4549. initialize: function (url, options) {
  4550. this._url = url;
  4551. options = L.setOptions(this, options);
  4552. // detecting retina displays, adjusting tileSize and zoom levels
  4553. if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {
  4554. options.tileSize = Math.floor(options.tileSize / 2);
  4555. if (!options.zoomReverse) {
  4556. options.zoomOffset++;
  4557. options.maxZoom--;
  4558. } else {
  4559. options.zoomOffset--;
  4560. options.minZoom++;
  4561. }
  4562. options.minZoom = Math.max(0, options.minZoom);
  4563. }
  4564. if (typeof options.subdomains === 'string') {
  4565. options.subdomains = options.subdomains.split('');
  4566. }
  4567. // for https://github.com/Leaflet/Leaflet/issues/137
  4568. if (!L.Browser.android) {
  4569. this.on('tileunload', this._onTileRemove);
  4570. }
  4571. },
  4572. // @method setUrl(url: String, noRedraw?: Boolean): this
  4573. // Updates the layer's URL template and redraws it (unless `noRedraw` is set to `true`).
  4574. setUrl: function (url, noRedraw) {
  4575. this._url = url;
  4576. if (!noRedraw) {
  4577. this.redraw();
  4578. }
  4579. return this;
  4580. },
  4581. // @method createTile(coords: Object, done?: Function): HTMLElement
  4582. // Called only internally, overrides GridLayer's [`createTile()`](#gridlayer-createtile)
  4583. // to return an `<img>` HTML element with the appropiate image URL given `coords`. The `done`
  4584. // callback is called when the tile has been loaded.
  4585. createTile: function (coords, done) {
  4586. var tile = document.createElement('img');
  4587. L.DomEvent.on(tile, 'load', L.bind(this._tileOnLoad, this, done, tile));
  4588. L.DomEvent.on(tile, 'error', L.bind(this._tileOnError, this, done, tile));
  4589. if (this.options.crossOrigin) {
  4590. tile.crossOrigin = '';
  4591. }
  4592. /*
  4593. Alt tag is set to empty string to keep screen readers from reading URL and for compliance reasons
  4594. http://www.w3.org/TR/WCAG20-TECHS/H67
  4595. */
  4596. tile.alt = '';
  4597. /*
  4598. Set role="presentation" to force screen readers to ignore this
  4599. https://www.w3.org/TR/wai-aria/roles#textalternativecomputation
  4600. */
  4601. tile.setAttribute('role', 'presentation');
  4602. tile.src = this.getTileUrl(coords);
  4603. return tile;
  4604. },
  4605. // @section Extension methods
  4606. // @uninheritable
  4607. // Layers extending `TileLayer` might reimplement the following method.
  4608. // @method getTileUrl(coords: Object): String
  4609. // Called only internally, returns the URL for a tile given its coordinates.
  4610. // Classes extending `TileLayer` can override this function to provide custom tile URL naming schemes.
  4611. getTileUrl: function (coords) {
  4612. var data = {
  4613. r: L.Browser.retina ? '@2x' : '',
  4614. s: this._getSubdomain(coords),
  4615. x: coords.x,
  4616. y: coords.y,
  4617. z: this._getZoomForUrl()
  4618. };
  4619. if (this._map && !this._map.options.crs.infinite) {
  4620. var invertedY = this._globalTileRange.max.y - coords.y;
  4621. if (this.options.tms) {
  4622. data['y'] = invertedY;
  4623. }
  4624. data['-y'] = invertedY;
  4625. }
  4626. return L.Util.template(this._url, L.extend(data, this.options));
  4627. },
  4628. _tileOnLoad: function (done, tile) {
  4629. // For https://github.com/Leaflet/Leaflet/issues/3332
  4630. if (L.Browser.ielt9) {
  4631. setTimeout(L.bind(done, this, null, tile), 0);
  4632. } else {
  4633. done(null, tile);
  4634. }
  4635. },
  4636. _tileOnError: function (done, tile, e) {
  4637. var errorUrl = this.options.errorTileUrl;
  4638. if (errorUrl) {
  4639. tile.src = errorUrl;
  4640. }
  4641. done(e, tile);
  4642. },
  4643. getTileSize: function () {
  4644. var map = this._map,
  4645. tileSize = L.GridLayer.prototype.getTileSize.call(this),
  4646. zoom = this._tileZoom + this.options.zoomOffset,
  4647. minNativeZoom = this.options.minNativeZoom,
  4648. maxNativeZoom = this.options.maxNativeZoom;
  4649. // decrease tile size when scaling below minNativeZoom
  4650. if (minNativeZoom !== null && zoom < minNativeZoom) {
  4651. return tileSize.divideBy(map.getZoomScale(minNativeZoom, zoom)).round();
  4652. }
  4653. // increase tile size when scaling above maxNativeZoom
  4654. if (maxNativeZoom !== null && zoom > maxNativeZoom) {
  4655. return tileSize.divideBy(map.getZoomScale(maxNativeZoom, zoom)).round();
  4656. }
  4657. return tileSize;
  4658. },
  4659. _onTileRemove: function (e) {
  4660. e.tile.onload = null;
  4661. },
  4662. _getZoomForUrl: function () {
  4663. var zoom = this._tileZoom,
  4664. maxZoom = this.options.maxZoom,
  4665. zoomReverse = this.options.zoomReverse,
  4666. zoomOffset = this.options.zoomOffset,
  4667. minNativeZoom = this.options.minNativeZoom,
  4668. maxNativeZoom = this.options.maxNativeZoom;
  4669. if (zoomReverse) {
  4670. zoom = maxZoom - zoom;
  4671. }
  4672. zoom += zoomOffset;
  4673. if (minNativeZoom !== null && zoom < minNativeZoom) {
  4674. return minNativeZoom;
  4675. }
  4676. if (maxNativeZoom !== null && zoom > maxNativeZoom) {
  4677. return maxNativeZoom;
  4678. }
  4679. return zoom;
  4680. },
  4681. _getSubdomain: function (tilePoint) {
  4682. var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;
  4683. return this.options.subdomains[index];
  4684. },
  4685. // stops loading all tiles in the background layer
  4686. _abortLoading: function () {
  4687. var i, tile;
  4688. for (i in this._tiles) {
  4689. if (this._tiles[i].coords.z !== this._tileZoom) {
  4690. tile = this._tiles[i].el;
  4691. tile.onload = L.Util.falseFn;
  4692. tile.onerror = L.Util.falseFn;
  4693. if (!tile.complete) {
  4694. tile.src = L.Util.emptyImageUrl;
  4695. L.DomUtil.remove(tile);
  4696. }
  4697. }
  4698. }
  4699. }
  4700. });
  4701. // @factory L.tilelayer(urlTemplate: String, options?: TileLayer options)
  4702. // Instantiates a tile layer object given a `URL template` and optionally an options object.
  4703. L.tileLayer = function (url, options) {
  4704. return new L.TileLayer(url, options);
  4705. };
  4706. /*
  4707. * @class TileLayer.WMS
  4708. * @inherits TileLayer
  4709. * @aka L.TileLayer.WMS
  4710. * Used to display [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services as tile layers on the map. Extends `TileLayer`.
  4711. *
  4712. * @example
  4713. *
  4714. * ```js
  4715. * var nexrad = L.tileLayer.wms("http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi", {
  4716. * layers: 'nexrad-n0r-900913',
  4717. * format: 'image/png',
  4718. * transparent: true,
  4719. * attribution: "Weather data © 2012 IEM Nexrad"
  4720. * });
  4721. * ```
  4722. */
  4723. L.TileLayer.WMS = L.TileLayer.extend({
  4724. // @section
  4725. // @aka TileLayer.WMS options
  4726. // If any custom options not documented here are used, they will be sent to the
  4727. // WMS server as extra parameters in each request URL. This can be useful for
  4728. // [non-standard vendor WMS parameters](http://docs.geoserver.org/stable/en/user/services/wms/vendor.html).
  4729. defaultWmsParams: {
  4730. service: 'WMS',
  4731. request: 'GetMap',
  4732. // @option layers: String = ''
  4733. // **(required)** Comma-separated list of WMS layers to show.
  4734. layers: '',
  4735. // @option styles: String = ''
  4736. // Comma-separated list of WMS styles.
  4737. styles: '',
  4738. // @option format: String = 'image/jpeg'
  4739. // WMS image format (use `'image/png'` for layers with transparency).
  4740. format: 'image/jpeg',
  4741. // @option transparent: Boolean = false
  4742. // If `true`, the WMS service will return images with transparency.
  4743. transparent: false,
  4744. // @option version: String = '1.1.1'
  4745. // Version of the WMS service to use
  4746. version: '1.1.1'
  4747. },
  4748. options: {
  4749. // @option crs: CRS = null
  4750. // Coordinate Reference System to use for the WMS requests, defaults to
  4751. // map CRS. Don't change this if you're not sure what it means.
  4752. crs: null,
  4753. // @option uppercase: Boolean = false
  4754. // If `true`, WMS request parameter keys will be uppercase.
  4755. uppercase: false
  4756. },
  4757. initialize: function (url, options) {
  4758. this._url = url;
  4759. var wmsParams = L.extend({}, this.defaultWmsParams);
  4760. // all keys that are not TileLayer options go to WMS params
  4761. for (var i in options) {
  4762. if (!(i in this.options)) {
  4763. wmsParams[i] = options[i];
  4764. }
  4765. }
  4766. options = L.setOptions(this, options);
  4767. wmsParams.width = wmsParams.height = options.tileSize * (options.detectRetina && L.Browser.retina ? 2 : 1);
  4768. this.wmsParams = wmsParams;
  4769. },
  4770. onAdd: function (map) {
  4771. this._crs = this.options.crs || map.options.crs;
  4772. this._wmsVersion = parseFloat(this.wmsParams.version);
  4773. var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';
  4774. this.wmsParams[projectionKey] = this._crs.code;
  4775. L.TileLayer.prototype.onAdd.call(this, map);
  4776. },
  4777. getTileUrl: function (coords) {
  4778. var tileBounds = this._tileCoordsToBounds(coords),
  4779. nw = this._crs.project(tileBounds.getNorthWest()),
  4780. se = this._crs.project(tileBounds.getSouthEast()),
  4781. bbox = (this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ?
  4782. [se.y, nw.x, nw.y, se.x] :
  4783. [nw.x, se.y, se.x, nw.y]).join(','),
  4784. url = L.TileLayer.prototype.getTileUrl.call(this, coords);
  4785. return url +
  4786. L.Util.getParamString(this.wmsParams, url, this.options.uppercase) +
  4787. (this.options.uppercase ? '&BBOX=' : '&bbox=') + bbox;
  4788. },
  4789. // @method setParams(params: Object, noRedraw?: Boolean): this
  4790. // Merges an object with the new parameters and re-requests tiles on the current screen (unless `noRedraw` was set to true).
  4791. setParams: function (params, noRedraw) {
  4792. L.extend(this.wmsParams, params);
  4793. if (!noRedraw) {
  4794. this.redraw();
  4795. }
  4796. return this;
  4797. }
  4798. });
  4799. // @factory L.tileLayer.wms(baseUrl: String, options: TileLayer.WMS options)
  4800. // Instantiates a WMS tile layer object given a base URL of the WMS service and a WMS parameters/options object.
  4801. L.tileLayer.wms = function (url, options) {
  4802. return new L.TileLayer.WMS(url, options);
  4803. };
  4804. /*
  4805. * @class ImageOverlay
  4806. * @aka L.ImageOverlay
  4807. * @inherits Interactive layer
  4808. *
  4809. * Used to load and display a single image over specific bounds of the map. Extends `Layer`.
  4810. *
  4811. * @example
  4812. *
  4813. * ```js
  4814. * var imageUrl = 'http://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg',
  4815. * imageBounds = [[40.712216, -74.22655], [40.773941, -74.12544]];
  4816. * L.imageOverlay(imageUrl, imageBounds).addTo(map);
  4817. * ```
  4818. */
  4819. L.ImageOverlay = L.Layer.extend({
  4820. // @section
  4821. // @aka ImageOverlay options
  4822. options: {
  4823. // @option opacity: Number = 1.0
  4824. // The opacity of the image overlay.
  4825. opacity: 1,
  4826. // @option alt: String = ''
  4827. // Text for the `alt` attribute of the image (useful for accessibility).
  4828. alt: '',
  4829. // @option interactive: Boolean = false
  4830. // If `true`, the image overlay will emit [mouse events](#interactive-layer) when clicked or hovered.
  4831. interactive: false,
  4832. // @option crossOrigin: Boolean = false
  4833. // If true, the image will have its crossOrigin attribute set to ''. This is needed if you want to access image pixel data.
  4834. crossOrigin: false
  4835. },
  4836. initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
  4837. this._url = url;
  4838. this._bounds = L.latLngBounds(bounds);
  4839. L.setOptions(this, options);
  4840. },
  4841. onAdd: function () {
  4842. if (!this._image) {
  4843. this._initImage();
  4844. if (this.options.opacity < 1) {
  4845. this._updateOpacity();
  4846. }
  4847. }
  4848. if (this.options.interactive) {
  4849. L.DomUtil.addClass(this._image, 'leaflet-interactive');
  4850. this.addInteractiveTarget(this._image);
  4851. }
  4852. this.getPane().appendChild(this._image);
  4853. this._reset();
  4854. },
  4855. onRemove: function () {
  4856. L.DomUtil.remove(this._image);
  4857. if (this.options.interactive) {
  4858. this.removeInteractiveTarget(this._image);
  4859. }
  4860. },
  4861. // @method setOpacity(opacity: Number): this
  4862. // Sets the opacity of the overlay.
  4863. setOpacity: function (opacity) {
  4864. this.options.opacity = opacity;
  4865. if (this._image) {
  4866. this._updateOpacity();
  4867. }
  4868. return this;
  4869. },
  4870. setStyle: function (styleOpts) {
  4871. if (styleOpts.opacity) {
  4872. this.setOpacity(styleOpts.opacity);
  4873. }
  4874. return this;
  4875. },
  4876. // @method bringToFront(): this
  4877. // Brings the layer to the top of all overlays.
  4878. bringToFront: function () {
  4879. if (this._map) {
  4880. L.DomUtil.toFront(this._image);
  4881. }
  4882. return this;
  4883. },
  4884. // @method bringToBack(): this
  4885. // Brings the layer to the bottom of all overlays.
  4886. bringToBack: function () {
  4887. if (this._map) {
  4888. L.DomUtil.toBack(this._image);
  4889. }
  4890. return this;
  4891. },
  4892. // @method setUrl(url: String): this
  4893. // Changes the URL of the image.
  4894. setUrl: function (url) {
  4895. this._url = url;
  4896. if (this._image) {
  4897. this._image.src = url;
  4898. }
  4899. return this;
  4900. },
  4901. setBounds: function (bounds) {
  4902. this._bounds = bounds;
  4903. if (this._map) {
  4904. this._reset();
  4905. }
  4906. return this;
  4907. },
  4908. getEvents: function () {
  4909. var events = {
  4910. zoom: this._reset,
  4911. viewreset: this._reset
  4912. };
  4913. if (this._zoomAnimated) {
  4914. events.zoomanim = this._animateZoom;
  4915. }
  4916. return events;
  4917. },
  4918. getBounds: function () {
  4919. return this._bounds;
  4920. },
  4921. getElement: function () {
  4922. return this._image;
  4923. },
  4924. _initImage: function () {
  4925. var img = this._image = L.DomUtil.create('img',
  4926. 'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : ''));
  4927. img.onselectstart = L.Util.falseFn;
  4928. img.onmousemove = L.Util.falseFn;
  4929. img.onload = L.bind(this.fire, this, 'load');
  4930. if (this.options.crossOrigin) {
  4931. img.crossOrigin = '';
  4932. }
  4933. img.src = this._url;
  4934. img.alt = this.options.alt;
  4935. },
  4936. _animateZoom: function (e) {
  4937. var scale = this._map.getZoomScale(e.zoom),
  4938. offset = this._map._latLngBoundsToNewLayerBounds(this._bounds, e.zoom, e.center).min;
  4939. L.DomUtil.setTransform(this._image, offset, scale);
  4940. },
  4941. _reset: function () {
  4942. var image = this._image,
  4943. bounds = new L.Bounds(
  4944. this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
  4945. this._map.latLngToLayerPoint(this._bounds.getSouthEast())),
  4946. size = bounds.getSize();
  4947. L.DomUtil.setPosition(image, bounds.min);
  4948. image.style.width = size.x + 'px';
  4949. image.style.height = size.y + 'px';
  4950. },
  4951. _updateOpacity: function () {
  4952. L.DomUtil.setOpacity(this._image, this.options.opacity);
  4953. }
  4954. });
  4955. // @factory L.imageOverlay(imageUrl: String, bounds: LatLngBounds, options?: ImageOverlay options)
  4956. // Instantiates an image overlay object given the URL of the image and the
  4957. // geographical bounds it is tied to.
  4958. L.imageOverlay = function (url, bounds, options) {
  4959. return new L.ImageOverlay(url, bounds, options);
  4960. };
  4961. /*
  4962. * @class Icon
  4963. * @aka L.Icon
  4964. * @inherits Layer
  4965. *
  4966. * Represents an icon to provide when creating a marker.
  4967. *
  4968. * @example
  4969. *
  4970. * ```js
  4971. * var myIcon = L.icon({
  4972. * iconUrl: 'my-icon.png',
  4973. * iconRetinaUrl: 'my-icon@2x.png',
  4974. * iconSize: [38, 95],
  4975. * iconAnchor: [22, 94],
  4976. * popupAnchor: [-3, -76],
  4977. * shadowUrl: 'my-icon-shadow.png',
  4978. * shadowRetinaUrl: 'my-icon-shadow@2x.png',
  4979. * shadowSize: [68, 95],
  4980. * shadowAnchor: [22, 94]
  4981. * });
  4982. *
  4983. * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);
  4984. * ```
  4985. *
  4986. * `L.Icon.Default` extends `L.Icon` and is the blue icon Leaflet uses for markers by default.
  4987. *
  4988. */
  4989. L.Icon = L.Class.extend({
  4990. /* @section
  4991. * @aka Icon options
  4992. *
  4993. * @option iconUrl: String = null
  4994. * **(required)** The URL to the icon image (absolute or relative to your script path).
  4995. *
  4996. * @option iconRetinaUrl: String = null
  4997. * The URL to a retina sized version of the icon image (absolute or relative to your
  4998. * script path). Used for Retina screen devices.
  4999. *
  5000. * @option iconSize: Point = null
  5001. * Size of the icon image in pixels.
  5002. *
  5003. * @option iconAnchor: Point = null
  5004. * The coordinates of the "tip" of the icon (relative to its top left corner). The icon
  5005. * will be aligned so that this point is at the marker's geographical location. Centered
  5006. * by default if size is specified, also can be set in CSS with negative margins.
  5007. *
  5008. * @option popupAnchor: Point = null
  5009. * The coordinates of the point from which popups will "open", relative to the icon anchor.
  5010. *
  5011. * @option shadowUrl: String = null
  5012. * The URL to the icon shadow image. If not specified, no shadow image will be created.
  5013. *
  5014. * @option shadowRetinaUrl: String = null
  5015. *
  5016. * @option shadowSize: Point = null
  5017. * Size of the shadow image in pixels.
  5018. *
  5019. * @option shadowAnchor: Point = null
  5020. * The coordinates of the "tip" of the shadow (relative to its top left corner) (the same
  5021. * as iconAnchor if not specified).
  5022. *
  5023. * @option className: String = ''
  5024. * A custom class name to assign to both icon and shadow images. Empty by default.
  5025. */
  5026. initialize: function (options) {
  5027. L.setOptions(this, options);
  5028. },
  5029. // @method createIcon(oldIcon?: HTMLElement): HTMLElement
  5030. // Called internally when the icon has to be shown, returns a `<img>` HTML element
  5031. // styled according to the options.
  5032. createIcon: function (oldIcon) {
  5033. return this._createIcon('icon', oldIcon);
  5034. },
  5035. // @method createShadow(oldIcon?: HTMLElement): HTMLElement
  5036. // As `createIcon`, but for the shadow beneath it.
  5037. createShadow: function (oldIcon) {
  5038. return this._createIcon('shadow', oldIcon);
  5039. },
  5040. _createIcon: function (name, oldIcon) {
  5041. var src = this._getIconUrl(name);
  5042. if (!src) {
  5043. if (name === 'icon') {
  5044. throw new Error('iconUrl not set in Icon options (see the docs).');
  5045. }
  5046. return null;
  5047. }
  5048. var img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null);
  5049. this._setIconStyles(img, name);
  5050. return img;
  5051. },
  5052. _setIconStyles: function (img, name) {
  5053. var options = this.options;
  5054. var sizeOption = options[name + 'Size'];
  5055. if (typeof sizeOption === 'number') {
  5056. sizeOption = [sizeOption, sizeOption];
  5057. }
  5058. var size = L.point(sizeOption),
  5059. anchor = L.point(name === 'shadow' && options.shadowAnchor || options.iconAnchor ||
  5060. size && size.divideBy(2, true));
  5061. img.className = 'leaflet-marker-' + name + ' ' + (options.className || '');
  5062. if (anchor) {
  5063. img.style.marginLeft = (-anchor.x) + 'px';
  5064. img.style.marginTop = (-anchor.y) + 'px';
  5065. }
  5066. if (size) {
  5067. img.style.width = size.x + 'px';
  5068. img.style.height = size.y + 'px';
  5069. }
  5070. },
  5071. _createImg: function (src, el) {
  5072. el = el || document.createElement('img');
  5073. el.src = src;
  5074. return el;
  5075. },
  5076. _getIconUrl: function (name) {
  5077. return L.Browser.retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url'];
  5078. }
  5079. });
  5080. // @factory L.icon(options: Icon options)
  5081. // Creates an icon instance with the given options.
  5082. L.icon = function (options) {
  5083. return new L.Icon(options);
  5084. };
  5085. /*
  5086. * @miniclass Icon.Default (Icon)
  5087. * @aka L.Icon.Default
  5088. * @section
  5089. *
  5090. * A trivial subclass of `Icon`, represents the icon to use in `Marker`s when
  5091. * no icon is specified. Points to the blue marker image distributed with Leaflet
  5092. * releases.
  5093. *
  5094. * In order to customize the default icon, just change the properties of `L.Icon.Default.prototype.options`
  5095. * (which is a set of `Icon options`).
  5096. *
  5097. * If you want to _completely_ replace the default icon, override the
  5098. * `L.Marker.prototype.options.icon` with your own icon instead.
  5099. */
  5100. L.Icon.Default = L.Icon.extend({
  5101. options: {
  5102. iconUrl: 'marker-icon.png',
  5103. iconRetinaUrl: 'marker-icon-2x.png',
  5104. shadowUrl: 'marker-shadow.png',
  5105. iconSize: [25, 41],
  5106. iconAnchor: [12, 41],
  5107. popupAnchor: [1, -34],
  5108. tooltipAnchor: [16, -28],
  5109. shadowSize: [41, 41]
  5110. },
  5111. _getIconUrl: function (name) {
  5112. if (!L.Icon.Default.imagePath) { // Deprecated, backwards-compatibility only
  5113. L.Icon.Default.imagePath = this._detectIconPath();
  5114. }
  5115. // @option imagePath: String
  5116. // `L.Icon.Default` will try to auto-detect the absolute location of the
  5117. // blue icon images. If you are placing these images in a non-standard
  5118. // way, set this option to point to the right absolute path.
  5119. return (this.options.imagePath || L.Icon.Default.imagePath) + L.Icon.prototype._getIconUrl.call(this, name);
  5120. },
  5121. _detectIconPath: function () {
  5122. var el = L.DomUtil.create('div', 'leaflet-default-icon-path', document.body);
  5123. var path = L.DomUtil.getStyle(el, 'background-image') ||
  5124. L.DomUtil.getStyle(el, 'backgroundImage'); // IE8
  5125. document.body.removeChild(el);
  5126. return path.indexOf('url') === 0 ?
  5127. path.replace(/^url\([\"\']?/, '').replace(/marker-icon\.png[\"\']?\)$/, '') : '';
  5128. }
  5129. });
  5130. /*
  5131. * @class Marker
  5132. * @inherits Interactive layer
  5133. * @aka L.Marker
  5134. * L.Marker is used to display clickable/draggable icons on the map. Extends `Layer`.
  5135. *
  5136. * @example
  5137. *
  5138. * ```js
  5139. * L.marker([50.5, 30.5]).addTo(map);
  5140. * ```
  5141. */
  5142. L.Marker = L.Layer.extend({
  5143. // @section
  5144. // @aka Marker options
  5145. options: {
  5146. // @option icon: Icon = *
  5147. // Icon class to use for rendering the marker. See [Icon documentation](#L.Icon) for details on how to customize the marker icon. If not specified, a new `L.Icon.Default` is used.
  5148. icon: new L.Icon.Default(),
  5149. // Option inherited from "Interactive layer" abstract class
  5150. interactive: true,
  5151. // @option draggable: Boolean = false
  5152. // Whether the marker is draggable with mouse/touch or not.
  5153. draggable: false,
  5154. // @option keyboard: Boolean = true
  5155. // Whether the marker can be tabbed to with a keyboard and clicked by pressing enter.
  5156. keyboard: true,
  5157. // @option title: String = ''
  5158. // Text for the browser tooltip that appear on marker hover (no tooltip by default).
  5159. title: '',
  5160. // @option alt: String = ''
  5161. // Text for the `alt` attribute of the icon image (useful for accessibility).
  5162. alt: '',
  5163. // @option zIndexOffset: Number = 0
  5164. // By default, marker images zIndex is set automatically based on its latitude. Use this option if you want to put the marker on top of all others (or below), specifying a high value like `1000` (or high negative value, respectively).
  5165. zIndexOffset: 0,
  5166. // @option opacity: Number = 1.0
  5167. // The opacity of the marker.
  5168. opacity: 1,
  5169. // @option riseOnHover: Boolean = false
  5170. // If `true`, the marker will get on top of others when you hover the mouse over it.
  5171. riseOnHover: false,
  5172. // @option riseOffset: Number = 250
  5173. // The z-index offset used for the `riseOnHover` feature.
  5174. riseOffset: 250,
  5175. // @option pane: String = 'markerPane'
  5176. // `Map pane` where the markers icon will be added.
  5177. pane: 'markerPane',
  5178. // FIXME: shadowPane is no longer a valid option
  5179. nonBubblingEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu']
  5180. },
  5181. /* @section
  5182. *
  5183. * In addition to [shared layer methods](#Layer) like `addTo()` and `remove()` and [popup methods](#Popup) like bindPopup() you can also use the following methods:
  5184. */
  5185. initialize: function (latlng, options) {
  5186. L.setOptions(this, options);
  5187. this._latlng = L.latLng(latlng);
  5188. },
  5189. onAdd: function (map) {
  5190. this._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation;
  5191. if (this._zoomAnimated) {
  5192. map.on('zoomanim', this._animateZoom, this);
  5193. }
  5194. this._initIcon();
  5195. this.update();
  5196. },
  5197. onRemove: function (map) {
  5198. if (this.dragging && this.dragging.enabled()) {
  5199. this.options.draggable = true;
  5200. this.dragging.removeHooks();
  5201. }
  5202. if (this._zoomAnimated) {
  5203. map.off('zoomanim', this._animateZoom, this);
  5204. }
  5205. this._removeIcon();
  5206. this._removeShadow();
  5207. },
  5208. getEvents: function () {
  5209. return {
  5210. zoom: this.update,
  5211. viewreset: this.update
  5212. };
  5213. },
  5214. // @method getLatLng: LatLng
  5215. // Returns the current geographical position of the marker.
  5216. getLatLng: function () {
  5217. return this._latlng;
  5218. },
  5219. // @method setLatLng(latlng: LatLng): this
  5220. // Changes the marker position to the given point.
  5221. setLatLng: function (latlng) {
  5222. var oldLatLng = this._latlng;
  5223. this._latlng = L.latLng(latlng);
  5224. this.update();
  5225. // @event move: Event
  5226. // Fired when the marker is moved via [`setLatLng`](#marker-setlatlng) or by [dragging](#marker-dragging). Old and new coordinates are included in event arguments as `oldLatLng`, `latlng`.
  5227. return this.fire('move', {oldLatLng: oldLatLng, latlng: this._latlng});
  5228. },
  5229. // @method setZIndexOffset(offset: Number): this
  5230. // Changes the [zIndex offset](#marker-zindexoffset) of the marker.
  5231. setZIndexOffset: function (offset) {
  5232. this.options.zIndexOffset = offset;
  5233. return this.update();
  5234. },
  5235. // @method setIcon(icon: Icon): this
  5236. // Changes the marker icon.
  5237. setIcon: function (icon) {
  5238. this.options.icon = icon;
  5239. if (this._map) {
  5240. this._initIcon();
  5241. this.update();
  5242. }
  5243. if (this._popup) {
  5244. this.bindPopup(this._popup, this._popup.options);
  5245. }
  5246. return this;
  5247. },
  5248. getElement: function () {
  5249. return this._icon;
  5250. },
  5251. update: function () {
  5252. if (this._icon) {
  5253. var pos = this._map.latLngToLayerPoint(this._latlng).round();
  5254. this._setPos(pos);
  5255. }
  5256. return this;
  5257. },
  5258. _initIcon: function () {
  5259. var options = this.options,
  5260. classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');
  5261. var icon = options.icon.createIcon(this._icon),
  5262. addIcon = false;
  5263. // if we're not reusing the icon, remove the old one and init new one
  5264. if (icon !== this._icon) {
  5265. if (this._icon) {
  5266. this._removeIcon();
  5267. }
  5268. addIcon = true;
  5269. if (options.title) {
  5270. icon.title = options.title;
  5271. }
  5272. if (options.alt) {
  5273. icon.alt = options.alt;
  5274. }
  5275. }
  5276. L.DomUtil.addClass(icon, classToAdd);
  5277. if (options.keyboard) {
  5278. icon.tabIndex = '0';
  5279. }
  5280. this._icon = icon;
  5281. if (options.riseOnHover) {
  5282. this.on({
  5283. mouseover: this._bringToFront,
  5284. mouseout: this._resetZIndex
  5285. });
  5286. }
  5287. var newShadow = options.icon.createShadow(this._shadow),
  5288. addShadow = false;
  5289. if (newShadow !== this._shadow) {
  5290. this._removeShadow();
  5291. addShadow = true;
  5292. }
  5293. if (newShadow) {
  5294. L.DomUtil.addClass(newShadow, classToAdd);
  5295. }
  5296. this._shadow = newShadow;
  5297. if (options.opacity < 1) {
  5298. this._updateOpacity();
  5299. }
  5300. if (addIcon) {
  5301. this.getPane().appendChild(this._icon);
  5302. }
  5303. this._initInteraction();
  5304. if (newShadow && addShadow) {
  5305. this.getPane('shadowPane').appendChild(this._shadow);
  5306. }
  5307. },
  5308. _removeIcon: function () {
  5309. if (this.options.riseOnHover) {
  5310. this.off({
  5311. mouseover: this._bringToFront,
  5312. mouseout: this._resetZIndex
  5313. });
  5314. }
  5315. L.DomUtil.remove(this._icon);
  5316. this.removeInteractiveTarget(this._icon);
  5317. this._icon = null;
  5318. },
  5319. _removeShadow: function () {
  5320. if (this._shadow) {
  5321. L.DomUtil.remove(this._shadow);
  5322. }
  5323. this._shadow = null;
  5324. },
  5325. _setPos: function (pos) {
  5326. L.DomUtil.setPosition(this._icon, pos);
  5327. if (this._shadow) {
  5328. L.DomUtil.setPosition(this._shadow, pos);
  5329. }
  5330. this._zIndex = pos.y + this.options.zIndexOffset;
  5331. this._resetZIndex();
  5332. },
  5333. _updateZIndex: function (offset) {
  5334. this._icon.style.zIndex = this._zIndex + offset;
  5335. },
  5336. _animateZoom: function (opt) {
  5337. var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();
  5338. this._setPos(pos);
  5339. },
  5340. _initInteraction: function () {
  5341. if (!this.options.interactive) { return; }
  5342. L.DomUtil.addClass(this._icon, 'leaflet-interactive');
  5343. this.addInteractiveTarget(this._icon);
  5344. if (L.Handler.MarkerDrag) {
  5345. var draggable = this.options.draggable;
  5346. if (this.dragging) {
  5347. draggable = this.dragging.enabled();
  5348. this.dragging.disable();
  5349. }
  5350. this.dragging = new L.Handler.MarkerDrag(this);
  5351. if (draggable) {
  5352. this.dragging.enable();
  5353. }
  5354. }
  5355. },
  5356. // @method setOpacity(opacity: Number): this
  5357. // Changes the opacity of the marker.
  5358. setOpacity: function (opacity) {
  5359. this.options.opacity = opacity;
  5360. if (this._map) {
  5361. this._updateOpacity();
  5362. }
  5363. return this;
  5364. },
  5365. _updateOpacity: function () {
  5366. var opacity = this.options.opacity;
  5367. L.DomUtil.setOpacity(this._icon, opacity);
  5368. if (this._shadow) {
  5369. L.DomUtil.setOpacity(this._shadow, opacity);
  5370. }
  5371. },
  5372. _bringToFront: function () {
  5373. this._updateZIndex(this.options.riseOffset);
  5374. },
  5375. _resetZIndex: function () {
  5376. this._updateZIndex(0);
  5377. },
  5378. _getPopupAnchor: function () {
  5379. return this.options.icon.options.popupAnchor || [0, 0];
  5380. },
  5381. _getTooltipAnchor: function () {
  5382. return this.options.icon.options.tooltipAnchor || [0, 0];
  5383. }
  5384. });
  5385. // factory L.marker(latlng: LatLng, options? : Marker options)
  5386. // @factory L.marker(latlng: LatLng, options? : Marker options)
  5387. // Instantiates a Marker object given a geographical point and optionally an options object.
  5388. L.marker = function (latlng, options) {
  5389. return new L.Marker(latlng, options);
  5390. };
  5391. /*
  5392. * @class DivIcon
  5393. * @aka L.DivIcon
  5394. * @inherits Icon
  5395. *
  5396. * Represents a lightweight icon for markers that uses a simple `<div>`
  5397. * element instead of an image. Inherits from `Icon` but ignores the `iconUrl` and shadow options.
  5398. *
  5399. * @example
  5400. * ```js
  5401. * var myIcon = L.divIcon({className: 'my-div-icon'});
  5402. * // you can set .my-div-icon styles in CSS
  5403. *
  5404. * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);
  5405. * ```
  5406. *
  5407. * By default, it has a 'leaflet-div-icon' CSS class and is styled as a little white square with a shadow.
  5408. */
  5409. L.DivIcon = L.Icon.extend({
  5410. options: {
  5411. // @section
  5412. // @aka DivIcon options
  5413. iconSize: [12, 12], // also can be set through CSS
  5414. // iconAnchor: (Point),
  5415. // popupAnchor: (Point),
  5416. // @option html: String = ''
  5417. // Custom HTML code to put inside the div element, empty by default.
  5418. html: false,
  5419. // @option bgPos: Point = [0, 0]
  5420. // Optional relative position of the background, in pixels
  5421. bgPos: null,
  5422. className: 'leaflet-div-icon'
  5423. },
  5424. createIcon: function (oldIcon) {
  5425. var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),
  5426. options = this.options;
  5427. div.innerHTML = options.html !== false ? options.html : '';
  5428. if (options.bgPos) {
  5429. var bgPos = L.point(options.bgPos);
  5430. div.style.backgroundPosition = (-bgPos.x) + 'px ' + (-bgPos.y) + 'px';
  5431. }
  5432. this._setIconStyles(div, 'icon');
  5433. return div;
  5434. },
  5435. createShadow: function () {
  5436. return null;
  5437. }
  5438. });
  5439. // @factory L.divIcon(options: DivIcon options)
  5440. // Creates a `DivIcon` instance with the given options.
  5441. L.divIcon = function (options) {
  5442. return new L.DivIcon(options);
  5443. };
  5444. /*
  5445. * @class DivOverlay
  5446. * @inherits Layer
  5447. * @aka L.DivOverlay
  5448. * Base model for L.Popup and L.Tooltip. Inherit from it for custom popup like plugins.
  5449. */
  5450. // @namespace DivOverlay
  5451. L.DivOverlay = L.Layer.extend({
  5452. // @section
  5453. // @aka DivOverlay options
  5454. options: {
  5455. // @option offset: Point = Point(0, 7)
  5456. // The offset of the popup position. Useful to control the anchor
  5457. // of the popup when opening it on some overlays.
  5458. offset: [0, 7],
  5459. // @option className: String = ''
  5460. // A custom CSS class name to assign to the popup.
  5461. className: '',
  5462. // @option pane: String = 'popupPane'
  5463. // `Map pane` where the popup will be added.
  5464. pane: 'popupPane'
  5465. },
  5466. initialize: function (options, source) {
  5467. L.setOptions(this, options);
  5468. this._source = source;
  5469. },
  5470. onAdd: function (map) {
  5471. this._zoomAnimated = map._zoomAnimated;
  5472. if (!this._container) {
  5473. this._initLayout();
  5474. }
  5475. if (map._fadeAnimated) {
  5476. L.DomUtil.setOpacity(this._container, 0);
  5477. }
  5478. clearTimeout(this._removeTimeout);
  5479. this.getPane().appendChild(this._container);
  5480. this.update();
  5481. if (map._fadeAnimated) {
  5482. L.DomUtil.setOpacity(this._container, 1);
  5483. }
  5484. this.bringToFront();
  5485. },
  5486. onRemove: function (map) {
  5487. if (map._fadeAnimated) {
  5488. L.DomUtil.setOpacity(this._container, 0);
  5489. this._removeTimeout = setTimeout(L.bind(L.DomUtil.remove, L.DomUtil, this._container), 200);
  5490. } else {
  5491. L.DomUtil.remove(this._container);
  5492. }
  5493. },
  5494. // @namespace Popup
  5495. // @method getLatLng: LatLng
  5496. // Returns the geographical point of popup.
  5497. getLatLng: function () {
  5498. return this._latlng;
  5499. },
  5500. // @method setLatLng(latlng: LatLng): this
  5501. // Sets the geographical point where the popup will open.
  5502. setLatLng: function (latlng) {
  5503. this._latlng = L.latLng(latlng);
  5504. if (this._map) {
  5505. this._updatePosition();
  5506. this._adjustPan();
  5507. }
  5508. return this;
  5509. },
  5510. // @method getContent: String|HTMLElement
  5511. // Returns the content of the popup.
  5512. getContent: function () {
  5513. return this._content;
  5514. },
  5515. // @method setContent(htmlContent: String|HTMLElement|Function): this
  5516. // Sets the HTML content of the popup. If a function is passed the source layer will be passed to the function. The function should return a `String` or `HTMLElement` to be used in the popup.
  5517. setContent: function (content) {
  5518. this._content = content;
  5519. this.update();
  5520. return this;
  5521. },
  5522. // @method getElement: String|HTMLElement
  5523. // Alias for [getContent()](#popup-getcontent)
  5524. getElement: function () {
  5525. return this._container;
  5526. },
  5527. // @method update: null
  5528. // Updates the popup content, layout and position. Useful for updating the popup after something inside changed, e.g. image loaded.
  5529. update: function () {
  5530. if (!this._map) { return; }
  5531. this._container.style.visibility = 'hidden';
  5532. this._updateContent();
  5533. this._updateLayout();
  5534. this._updatePosition();
  5535. this._container.style.visibility = '';
  5536. this._adjustPan();
  5537. },
  5538. getEvents: function () {
  5539. var events = {
  5540. zoom: this._updatePosition,
  5541. viewreset: this._updatePosition
  5542. };
  5543. if (this._zoomAnimated) {
  5544. events.zoomanim = this._animateZoom;
  5545. }
  5546. return events;
  5547. },
  5548. // @method isOpen: Boolean
  5549. // Returns `true` when the popup is visible on the map.
  5550. isOpen: function () {
  5551. return !!this._map && this._map.hasLayer(this);
  5552. },
  5553. // @method bringToFront: this
  5554. // Brings this popup in front of other popups (in the same map pane).
  5555. bringToFront: function () {
  5556. if (this._map) {
  5557. L.DomUtil.toFront(this._container);
  5558. }
  5559. return this;
  5560. },
  5561. // @method bringToBack: this
  5562. // Brings this popup to the back of other popups (in the same map pane).
  5563. bringToBack: function () {
  5564. if (this._map) {
  5565. L.DomUtil.toBack(this._container);
  5566. }
  5567. return this;
  5568. },
  5569. _updateContent: function () {
  5570. if (!this._content) { return; }
  5571. var node = this._contentNode;
  5572. var content = (typeof this._content === 'function') ? this._content(this._source || this) : this._content;
  5573. if (typeof content === 'string') {
  5574. node.innerHTML = content;
  5575. } else {
  5576. while (node.hasChildNodes()) {
  5577. node.removeChild(node.firstChild);
  5578. }
  5579. node.appendChild(content);
  5580. }
  5581. this.fire('contentupdate');
  5582. },
  5583. _updatePosition: function () {
  5584. if (!this._map) { return; }
  5585. var pos = this._map.latLngToLayerPoint(this._latlng),
  5586. offset = L.point(this.options.offset),
  5587. anchor = this._getAnchor();
  5588. if (this._zoomAnimated) {
  5589. L.DomUtil.setPosition(this._container, pos.add(anchor));
  5590. } else {
  5591. offset = offset.add(pos).add(anchor);
  5592. }
  5593. var bottom = this._containerBottom = -offset.y,
  5594. left = this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x;
  5595. // bottom position the popup in case the height of the popup changes (images loading etc)
  5596. this._container.style.bottom = bottom + 'px';
  5597. this._container.style.left = left + 'px';
  5598. },
  5599. _getAnchor: function () {
  5600. return [0, 0];
  5601. }
  5602. });
  5603. /*
  5604. * @class Popup
  5605. * @inherits DivOverlay
  5606. * @aka L.Popup
  5607. * Used to open popups in certain places of the map. Use [Map.openPopup](#map-openpopup) to
  5608. * open popups while making sure that only one popup is open at one time
  5609. * (recommended for usability), or use [Map.addLayer](#map-addlayer) to open as many as you want.
  5610. *
  5611. * @example
  5612. *
  5613. * If you want to just bind a popup to marker click and then open it, it's really easy:
  5614. *
  5615. * ```js
  5616. * marker.bindPopup(popupContent).openPopup();
  5617. * ```
  5618. * Path overlays like polylines also have a `bindPopup` method.
  5619. * Here's a more complicated way to open a popup on a map:
  5620. *
  5621. * ```js
  5622. * var popup = L.popup()
  5623. * .setLatLng(latlng)
  5624. * .setContent('<p>Hello world!<br />This is a nice popup.</p>')
  5625. * .openOn(map);
  5626. * ```
  5627. */
  5628. // @namespace Popup
  5629. L.Popup = L.DivOverlay.extend({
  5630. // @section
  5631. // @aka Popup options
  5632. options: {
  5633. // @option maxWidth: Number = 300
  5634. // Max width of the popup, in pixels.
  5635. maxWidth: 300,
  5636. // @option minWidth: Number = 50
  5637. // Min width of the popup, in pixels.
  5638. minWidth: 50,
  5639. // @option maxHeight: Number = null
  5640. // If set, creates a scrollable container of the given height
  5641. // inside a popup if its content exceeds it.
  5642. maxHeight: null,
  5643. // @option autoPan: Boolean = true
  5644. // Set it to `false` if you don't want the map to do panning animation
  5645. // to fit the opened popup.
  5646. autoPan: true,
  5647. // @option autoPanPaddingTopLeft: Point = null
  5648. // The margin between the popup and the top left corner of the map
  5649. // view after autopanning was performed.
  5650. autoPanPaddingTopLeft: null,
  5651. // @option autoPanPaddingBottomRight: Point = null
  5652. // The margin between the popup and the bottom right corner of the map
  5653. // view after autopanning was performed.
  5654. autoPanPaddingBottomRight: null,
  5655. // @option autoPanPadding: Point = Point(5, 5)
  5656. // Equivalent of setting both top left and bottom right autopan padding to the same value.
  5657. autoPanPadding: [5, 5],
  5658. // @option keepInView: Boolean = false
  5659. // Set it to `true` if you want to prevent users from panning the popup
  5660. // off of the screen while it is open.
  5661. keepInView: false,
  5662. // @option closeButton: Boolean = true
  5663. // Controls the presence of a close button in the popup.
  5664. closeButton: true,
  5665. // @option autoClose: Boolean = true
  5666. // Set it to `false` if you want to override the default behavior of
  5667. // the popup closing when user clicks the map (set globally by
  5668. // the Map's [closePopupOnClick](#map-closepopuponclick) option).
  5669. autoClose: true,
  5670. // @option className: String = ''
  5671. // A custom CSS class name to assign to the popup.
  5672. className: ''
  5673. },
  5674. // @namespace Popup
  5675. // @method openOn(map: Map): this
  5676. // Adds the popup to the map and closes the previous one. The same as `map.openPopup(popup)`.
  5677. openOn: function (map) {
  5678. map.openPopup(this);
  5679. return this;
  5680. },
  5681. onAdd: function (map) {
  5682. L.DivOverlay.prototype.onAdd.call(this, map);
  5683. // @namespace Map
  5684. // @section Popup events
  5685. // @event popupopen: PopupEvent
  5686. // Fired when a popup is opened in the map
  5687. map.fire('popupopen', {popup: this});
  5688. if (this._source) {
  5689. // @namespace Layer
  5690. // @section Popup events
  5691. // @event popupopen: PopupEvent
  5692. // Fired when a popup bound to this layer is opened
  5693. this._source.fire('popupopen', {popup: this}, true);
  5694. // For non-path layers, we toggle the popup when clicking
  5695. // again the layer, so prevent the map to reopen it.
  5696. if (!(this._source instanceof L.Path)) {
  5697. this._source.on('preclick', L.DomEvent.stopPropagation);
  5698. }
  5699. }
  5700. },
  5701. onRemove: function (map) {
  5702. L.DivOverlay.prototype.onRemove.call(this, map);
  5703. // @namespace Map
  5704. // @section Popup events
  5705. // @event popupclose: PopupEvent
  5706. // Fired when a popup in the map is closed
  5707. map.fire('popupclose', {popup: this});
  5708. if (this._source) {
  5709. // @namespace Layer
  5710. // @section Popup events
  5711. // @event popupclose: PopupEvent
  5712. // Fired when a popup bound to this layer is closed
  5713. this._source.fire('popupclose', {popup: this}, true);
  5714. if (!(this._source instanceof L.Path)) {
  5715. this._source.off('preclick', L.DomEvent.stopPropagation);
  5716. }
  5717. }
  5718. },
  5719. getEvents: function () {
  5720. var events = L.DivOverlay.prototype.getEvents.call(this);
  5721. if ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) {
  5722. events.preclick = this._close;
  5723. }
  5724. if (this.options.keepInView) {
  5725. events.moveend = this._adjustPan;
  5726. }
  5727. return events;
  5728. },
  5729. _close: function () {
  5730. if (this._map) {
  5731. this._map.closePopup(this);
  5732. }
  5733. },
  5734. _initLayout: function () {
  5735. var prefix = 'leaflet-popup',
  5736. container = this._container = L.DomUtil.create('div',
  5737. prefix + ' ' + (this.options.className || '') +
  5738. ' leaflet-zoom-animated');
  5739. if (this.options.closeButton) {
  5740. var closeButton = this._closeButton = L.DomUtil.create('a', prefix + '-close-button', container);
  5741. closeButton.href = '#close';
  5742. closeButton.innerHTML = '&#215;';
  5743. L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);
  5744. }
  5745. var wrapper = this._wrapper = L.DomUtil.create('div', prefix + '-content-wrapper', container);
  5746. this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);
  5747. L.DomEvent
  5748. .disableClickPropagation(wrapper)
  5749. .disableScrollPropagation(this._contentNode)
  5750. .on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);
  5751. this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);
  5752. this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);
  5753. },
  5754. _updateLayout: function () {
  5755. var container = this._contentNode,
  5756. style = container.style;
  5757. style.width = '';
  5758. style.whiteSpace = 'nowrap';
  5759. var width = container.offsetWidth;
  5760. width = Math.min(width, this.options.maxWidth);
  5761. width = Math.max(width, this.options.minWidth);
  5762. style.width = (width + 1) + 'px';
  5763. style.whiteSpace = '';
  5764. style.height = '';
  5765. var height = container.offsetHeight,
  5766. maxHeight = this.options.maxHeight,
  5767. scrolledClass = 'leaflet-popup-scrolled';
  5768. if (maxHeight && height > maxHeight) {
  5769. style.height = maxHeight + 'px';
  5770. L.DomUtil.addClass(container, scrolledClass);
  5771. } else {
  5772. L.DomUtil.removeClass(container, scrolledClass);
  5773. }
  5774. this._containerWidth = this._container.offsetWidth;
  5775. },
  5776. _animateZoom: function (e) {
  5777. var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center),
  5778. anchor = this._getAnchor();
  5779. L.DomUtil.setPosition(this._container, pos.add(anchor));
  5780. },
  5781. _adjustPan: function () {
  5782. if (!this.options.autoPan || (this._map._panAnim && this._map._panAnim._inProgress)) { return; }
  5783. var map = this._map,
  5784. marginBottom = parseInt(L.DomUtil.getStyle(this._container, 'marginBottom'), 10) || 0,
  5785. containerHeight = this._container.offsetHeight + marginBottom,
  5786. containerWidth = this._containerWidth,
  5787. layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);
  5788. layerPos._add(L.DomUtil.getPosition(this._container));
  5789. var containerPos = map.layerPointToContainerPoint(layerPos),
  5790. padding = L.point(this.options.autoPanPadding),
  5791. paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),
  5792. paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),
  5793. size = map.getSize(),
  5794. dx = 0,
  5795. dy = 0;
  5796. if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right
  5797. dx = containerPos.x + containerWidth - size.x + paddingBR.x;
  5798. }
  5799. if (containerPos.x - dx - paddingTL.x < 0) { // left
  5800. dx = containerPos.x - paddingTL.x;
  5801. }
  5802. if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom
  5803. dy = containerPos.y + containerHeight - size.y + paddingBR.y;
  5804. }
  5805. if (containerPos.y - dy - paddingTL.y < 0) { // top
  5806. dy = containerPos.y - paddingTL.y;
  5807. }
  5808. // @namespace Map
  5809. // @section Popup events
  5810. // @event autopanstart: Event
  5811. // Fired when the map starts autopanning when opening a popup.
  5812. if (dx || dy) {
  5813. map
  5814. .fire('autopanstart')
  5815. .panBy([dx, dy]);
  5816. }
  5817. },
  5818. _onCloseButtonClick: function (e) {
  5819. this._close();
  5820. L.DomEvent.stop(e);
  5821. },
  5822. _getAnchor: function () {
  5823. // Where should we anchor the popup on the source layer?
  5824. return L.point(this._source && this._source._getPopupAnchor ? this._source._getPopupAnchor() : [0, 0]);
  5825. }
  5826. });
  5827. // @namespace Popup
  5828. // @factory L.popup(options?: Popup options, source?: Layer)
  5829. // Instantiates a `Popup` object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the popup with a reference to the Layer to which it refers.
  5830. L.popup = function (options, source) {
  5831. return new L.Popup(options, source);
  5832. };
  5833. /* @namespace Map
  5834. * @section Interaction Options
  5835. * @option closePopupOnClick: Boolean = true
  5836. * Set it to `false` if you don't want popups to close when user clicks the map.
  5837. */
  5838. L.Map.mergeOptions({
  5839. closePopupOnClick: true
  5840. });
  5841. // @namespace Map
  5842. // @section Methods for Layers and Controls
  5843. L.Map.include({
  5844. // @method openPopup(popup: Popup): this
  5845. // Opens the specified popup while closing the previously opened (to make sure only one is opened at one time for usability).
  5846. // @alternative
  5847. // @method openPopup(content: String|HTMLElement, latlng: LatLng, options?: Popup options): this
  5848. // Creates a popup with the specified content and options and opens it in the given point on a map.
  5849. openPopup: function (popup, latlng, options) {
  5850. if (!(popup instanceof L.Popup)) {
  5851. popup = new L.Popup(options).setContent(popup);
  5852. }
  5853. if (latlng) {
  5854. popup.setLatLng(latlng);
  5855. }
  5856. if (this.hasLayer(popup)) {
  5857. return this;
  5858. }
  5859. if (this._popup && this._popup.options.autoClose) {
  5860. this.closePopup();
  5861. }
  5862. this._popup = popup;
  5863. return this.addLayer(popup);
  5864. },
  5865. // @method closePopup(popup?: Popup): this
  5866. // Closes the popup previously opened with [openPopup](#map-openpopup) (or the given one).
  5867. closePopup: function (popup) {
  5868. if (!popup || popup === this._popup) {
  5869. popup = this._popup;
  5870. this._popup = null;
  5871. }
  5872. if (popup) {
  5873. this.removeLayer(popup);
  5874. }
  5875. return this;
  5876. }
  5877. });
  5878. /*
  5879. * @namespace Layer
  5880. * @section Popup methods example
  5881. *
  5882. * All layers share a set of methods convenient for binding popups to it.
  5883. *
  5884. * ```js
  5885. * var layer = L.Polygon(latlngs).bindPopup('Hi There!').addTo(map);
  5886. * layer.openPopup();
  5887. * layer.closePopup();
  5888. * ```
  5889. *
  5890. * Popups will also be automatically opened when the layer is clicked on and closed when the layer is removed from the map or another popup is opened.
  5891. */
  5892. // @section Popup methods
  5893. L.Layer.include({
  5894. // @method bindPopup(content: String|HTMLElement|Function|Popup, options?: Popup options): this
  5895. // Binds a popup to the layer with the passed `content` and sets up the
  5896. // neccessary event listeners. If a `Function` is passed it will receive
  5897. // the layer as the first argument and should return a `String` or `HTMLElement`.
  5898. bindPopup: function (content, options) {
  5899. if (content instanceof L.Popup) {
  5900. L.setOptions(content, options);
  5901. this._popup = content;
  5902. content._source = this;
  5903. } else {
  5904. if (!this._popup || options) {
  5905. this._popup = new L.Popup(options, this);
  5906. }
  5907. this._popup.setContent(content);
  5908. }
  5909. if (!this._popupHandlersAdded) {
  5910. this.on({
  5911. click: this._openPopup,
  5912. remove: this.closePopup,
  5913. move: this._movePopup
  5914. });
  5915. this._popupHandlersAdded = true;
  5916. }
  5917. return this;
  5918. },
  5919. // @method unbindPopup(): this
  5920. // Removes the popup previously bound with `bindPopup`.
  5921. unbindPopup: function () {
  5922. if (this._popup) {
  5923. this.off({
  5924. click: this._openPopup,
  5925. remove: this.closePopup,
  5926. move: this._movePopup
  5927. });
  5928. this._popupHandlersAdded = false;
  5929. this._popup = null;
  5930. }
  5931. return this;
  5932. },
  5933. // @method openPopup(latlng?: LatLng): this
  5934. // Opens the bound popup at the specificed `latlng` or at the default popup anchor if no `latlng` is passed.
  5935. openPopup: function (layer, latlng) {
  5936. if (!(layer instanceof L.Layer)) {
  5937. latlng = layer;
  5938. layer = this;
  5939. }
  5940. if (layer instanceof L.FeatureGroup) {
  5941. for (var id in this._layers) {
  5942. layer = this._layers[id];
  5943. break;
  5944. }
  5945. }
  5946. if (!latlng) {
  5947. latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();
  5948. }
  5949. if (this._popup && this._map) {
  5950. // set popup source to this layer
  5951. this._popup._source = layer;
  5952. // update the popup (content, layout, ect...)
  5953. this._popup.update();
  5954. // open the popup on the map
  5955. this._map.openPopup(this._popup, latlng);
  5956. }
  5957. return this;
  5958. },
  5959. // @method closePopup(): this
  5960. // Closes the popup bound to this layer if it is open.
  5961. closePopup: function () {
  5962. if (this._popup) {
  5963. this._popup._close();
  5964. }
  5965. return this;
  5966. },
  5967. // @method togglePopup(): this
  5968. // Opens or closes the popup bound to this layer depending on its current state.
  5969. togglePopup: function (target) {
  5970. if (this._popup) {
  5971. if (this._popup._map) {
  5972. this.closePopup();
  5973. } else {
  5974. this.openPopup(target);
  5975. }
  5976. }
  5977. return this;
  5978. },
  5979. // @method isPopupOpen(): boolean
  5980. // Returns `true` if the popup bound to this layer is currently open.
  5981. isPopupOpen: function () {
  5982. return this._popup.isOpen();
  5983. },
  5984. // @method setPopupContent(content: String|HTMLElement|Popup): this
  5985. // Sets the content of the popup bound to this layer.
  5986. setPopupContent: function (content) {
  5987. if (this._popup) {
  5988. this._popup.setContent(content);
  5989. }
  5990. return this;
  5991. },
  5992. // @method getPopup(): Popup
  5993. // Returns the popup bound to this layer.
  5994. getPopup: function () {
  5995. return this._popup;
  5996. },
  5997. _openPopup: function (e) {
  5998. var layer = e.layer || e.target;
  5999. if (!this._popup) {
  6000. return;
  6001. }
  6002. if (!this._map) {
  6003. return;
  6004. }
  6005. // prevent map click
  6006. L.DomEvent.stop(e);
  6007. // if this inherits from Path its a vector and we can just
  6008. // open the popup at the new location
  6009. if (layer instanceof L.Path) {
  6010. this.openPopup(e.layer || e.target, e.latlng);
  6011. return;
  6012. }
  6013. // otherwise treat it like a marker and figure out
  6014. // if we should toggle it open/closed
  6015. if (this._map.hasLayer(this._popup) && this._popup._source === layer) {
  6016. this.closePopup();
  6017. } else {
  6018. this.openPopup(layer, e.latlng);
  6019. }
  6020. },
  6021. _movePopup: function (e) {
  6022. this._popup.setLatLng(e.latlng);
  6023. }
  6024. });
  6025. /*
  6026. * @class Tooltip
  6027. * @inherits DivOverlay
  6028. * @aka L.Tooltip
  6029. * Used to display small texts on top of map layers.
  6030. *
  6031. * @example
  6032. *
  6033. * ```js
  6034. * marker.bindTooltip("my tooltip text").openTooltip();
  6035. * ```
  6036. * Note about tooltip offset. Leaflet takes two options in consideration
  6037. * for computing tooltip offseting:
  6038. * - the `offset` Tooltip option: it defaults to [0, 0], and it's specific to one tooltip.
  6039. * Add a positive x offset to move the tooltip to the right, and a positive y offset to
  6040. * move it to the bottom. Negatives will move to the left and top.
  6041. * - the `tooltipAnchor` Icon option: this will only be considered for Marker. You
  6042. * should adapt this value if you use a custom icon.
  6043. */
  6044. // @namespace Tooltip
  6045. L.Tooltip = L.DivOverlay.extend({
  6046. // @section
  6047. // @aka Tooltip options
  6048. options: {
  6049. // @option pane: String = 'tooltipPane'
  6050. // `Map pane` where the tooltip will be added.
  6051. pane: 'tooltipPane',
  6052. // @option offset: Point = Point(0, 0)
  6053. // Optional offset of the tooltip position.
  6054. offset: [0, 0],
  6055. // @option direction: String = 'auto'
  6056. // Direction where to open the tooltip. Possible values are: `right`, `left`,
  6057. // `top`, `bottom`, `center`, `auto`.
  6058. // `auto` will dynamicaly switch between `right` and `left` according to the tooltip
  6059. // position on the map.
  6060. direction: 'auto',
  6061. // @option permanent: Boolean = false
  6062. // Whether to open the tooltip permanently or only on mouseover.
  6063. permanent: false,
  6064. // @option sticky: Boolean = false
  6065. // If true, the tooltip will follow the mouse instead of being fixed at the feature center.
  6066. sticky: false,
  6067. // @option interactive: Boolean = false
  6068. // If true, the tooltip will listen to the feature events.
  6069. interactive: false,
  6070. // @option opacity: Number = 0.9
  6071. // Tooltip container opacity.
  6072. opacity: 0.9
  6073. },
  6074. onAdd: function (map) {
  6075. L.DivOverlay.prototype.onAdd.call(this, map);
  6076. this.setOpacity(this.options.opacity);
  6077. // @namespace Map
  6078. // @section Tooltip events
  6079. // @event tooltipopen: TooltipEvent
  6080. // Fired when a tooltip is opened in the map.
  6081. map.fire('tooltipopen', {tooltip: this});
  6082. if (this._source) {
  6083. // @namespace Layer
  6084. // @section Tooltip events
  6085. // @event tooltipopen: TooltipEvent
  6086. // Fired when a tooltip bound to this layer is opened.
  6087. this._source.fire('tooltipopen', {tooltip: this}, true);
  6088. }
  6089. },
  6090. onRemove: function (map) {
  6091. L.DivOverlay.prototype.onRemove.call(this, map);
  6092. // @namespace Map
  6093. // @section Tooltip events
  6094. // @event tooltipclose: TooltipEvent
  6095. // Fired when a tooltip in the map is closed.
  6096. map.fire('tooltipclose', {tooltip: this});
  6097. if (this._source) {
  6098. // @namespace Layer
  6099. // @section Tooltip events
  6100. // @event tooltipclose: TooltipEvent
  6101. // Fired when a tooltip bound to this layer is closed.
  6102. this._source.fire('tooltipclose', {tooltip: this}, true);
  6103. }
  6104. },
  6105. getEvents: function () {
  6106. var events = L.DivOverlay.prototype.getEvents.call(this);
  6107. if (L.Browser.touch && !this.options.permanent) {
  6108. events.preclick = this._close;
  6109. }
  6110. return events;
  6111. },
  6112. _close: function () {
  6113. if (this._map) {
  6114. this._map.closeTooltip(this);
  6115. }
  6116. },
  6117. _initLayout: function () {
  6118. var prefix = 'leaflet-tooltip',
  6119. className = prefix + ' ' + (this.options.className || '') + ' leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');
  6120. this._contentNode = this._container = L.DomUtil.create('div', className);
  6121. },
  6122. _updateLayout: function () {},
  6123. _adjustPan: function () {},
  6124. _setPosition: function (pos) {
  6125. var map = this._map,
  6126. container = this._container,
  6127. centerPoint = map.latLngToContainerPoint(map.getCenter()),
  6128. tooltipPoint = map.layerPointToContainerPoint(pos),
  6129. direction = this.options.direction,
  6130. tooltipWidth = container.offsetWidth,
  6131. tooltipHeight = container.offsetHeight,
  6132. offset = L.point(this.options.offset),
  6133. anchor = this._getAnchor();
  6134. if (direction === 'top') {
  6135. pos = pos.add(L.point(-tooltipWidth / 2 + offset.x, -tooltipHeight + offset.y + anchor.y, true));
  6136. } else if (direction === 'bottom') {
  6137. pos = pos.subtract(L.point(tooltipWidth / 2 - offset.x, -offset.y, true));
  6138. } else if (direction === 'center') {
  6139. pos = pos.subtract(L.point(tooltipWidth / 2 + offset.x, tooltipHeight / 2 - anchor.y + offset.y, true));
  6140. } else if (direction === 'right' || direction === 'auto' && tooltipPoint.x < centerPoint.x) {
  6141. direction = 'right';
  6142. pos = pos.add(L.point(offset.x + anchor.x, anchor.y - tooltipHeight / 2 + offset.y, true));
  6143. } else {
  6144. direction = 'left';
  6145. pos = pos.subtract(L.point(tooltipWidth + anchor.x - offset.x, tooltipHeight / 2 - anchor.y - offset.y, true));
  6146. }
  6147. L.DomUtil.removeClass(container, 'leaflet-tooltip-right');
  6148. L.DomUtil.removeClass(container, 'leaflet-tooltip-left');
  6149. L.DomUtil.removeClass(container, 'leaflet-tooltip-top');
  6150. L.DomUtil.removeClass(container, 'leaflet-tooltip-bottom');
  6151. L.DomUtil.addClass(container, 'leaflet-tooltip-' + direction);
  6152. L.DomUtil.setPosition(container, pos);
  6153. },
  6154. _updatePosition: function () {
  6155. var pos = this._map.latLngToLayerPoint(this._latlng);
  6156. this._setPosition(pos);
  6157. },
  6158. setOpacity: function (opacity) {
  6159. this.options.opacity = opacity;
  6160. if (this._container) {
  6161. L.DomUtil.setOpacity(this._container, opacity);
  6162. }
  6163. },
  6164. _animateZoom: function (e) {
  6165. var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center);
  6166. this._setPosition(pos);
  6167. },
  6168. _getAnchor: function () {
  6169. // Where should we anchor the tooltip on the source layer?
  6170. return L.point(this._source && this._source._getTooltipAnchor && !this.options.sticky ? this._source._getTooltipAnchor() : [0, 0]);
  6171. }
  6172. });
  6173. // @namespace Tooltip
  6174. // @factory L.tooltip(options?: Tooltip options, source?: Layer)
  6175. // Instantiates a Tooltip object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the tooltip with a reference to the Layer to which it refers.
  6176. L.tooltip = function (options, source) {
  6177. return new L.Tooltip(options, source);
  6178. };
  6179. // @namespace Map
  6180. // @section Methods for Layers and Controls
  6181. L.Map.include({
  6182. // @method openTooltip(tooltip: Tooltip): this
  6183. // Opens the specified tooltip.
  6184. // @alternative
  6185. // @method openTooltip(content: String|HTMLElement, latlng: LatLng, options?: Tooltip options): this
  6186. // Creates a tooltip with the specified content and options and open it.
  6187. openTooltip: function (tooltip, latlng, options) {
  6188. if (!(tooltip instanceof L.Tooltip)) {
  6189. tooltip = new L.Tooltip(options).setContent(tooltip);
  6190. }
  6191. if (latlng) {
  6192. tooltip.setLatLng(latlng);
  6193. }
  6194. if (this.hasLayer(tooltip)) {
  6195. return this;
  6196. }
  6197. return this.addLayer(tooltip);
  6198. },
  6199. // @method closeTooltip(tooltip?: Tooltip): this
  6200. // Closes the tooltip given as parameter.
  6201. closeTooltip: function (tooltip) {
  6202. if (tooltip) {
  6203. this.removeLayer(tooltip);
  6204. }
  6205. return this;
  6206. }
  6207. });
  6208. /*
  6209. * @namespace Layer
  6210. * @section Tooltip methods example
  6211. *
  6212. * All layers share a set of methods convenient for binding tooltips to it.
  6213. *
  6214. * ```js
  6215. * var layer = L.Polygon(latlngs).bindTooltip('Hi There!').addTo(map);
  6216. * layer.openTooltip();
  6217. * layer.closeTooltip();
  6218. * ```
  6219. */
  6220. // @section Tooltip methods
  6221. L.Layer.include({
  6222. // @method bindTooltip(content: String|HTMLElement|Function|Tooltip, options?: Tooltip options): this
  6223. // Binds a tooltip to the layer with the passed `content` and sets up the
  6224. // neccessary event listeners. If a `Function` is passed it will receive
  6225. // the layer as the first argument and should return a `String` or `HTMLElement`.
  6226. bindTooltip: function (content, options) {
  6227. if (content instanceof L.Tooltip) {
  6228. L.setOptions(content, options);
  6229. this._tooltip = content;
  6230. content._source = this;
  6231. } else {
  6232. if (!this._tooltip || options) {
  6233. this._tooltip = L.tooltip(options, this);
  6234. }
  6235. this._tooltip.setContent(content);
  6236. }
  6237. this._initTooltipInteractions();
  6238. if (this._tooltip.options.permanent && this._map && this._map.hasLayer(this)) {
  6239. this.openTooltip();
  6240. }
  6241. return this;
  6242. },
  6243. // @method unbindTooltip(): this
  6244. // Removes the tooltip previously bound with `bindTooltip`.
  6245. unbindTooltip: function () {
  6246. if (this._tooltip) {
  6247. this._initTooltipInteractions(true);
  6248. this.closeTooltip();
  6249. this._tooltip = null;
  6250. }
  6251. return this;
  6252. },
  6253. _initTooltipInteractions: function (remove) {
  6254. if (!remove && this._tooltipHandlersAdded) { return; }
  6255. var onOff = remove ? 'off' : 'on',
  6256. events = {
  6257. remove: this.closeTooltip,
  6258. move: this._moveTooltip
  6259. };
  6260. if (!this._tooltip.options.permanent) {
  6261. events.mouseover = this._openTooltip;
  6262. events.mouseout = this.closeTooltip;
  6263. if (this._tooltip.options.sticky) {
  6264. events.mousemove = this._moveTooltip;
  6265. }
  6266. if (L.Browser.touch) {
  6267. events.click = this._openTooltip;
  6268. }
  6269. } else {
  6270. events.add = this._openTooltip;
  6271. }
  6272. this[onOff](events);
  6273. this._tooltipHandlersAdded = !remove;
  6274. },
  6275. // @method openTooltip(latlng?: LatLng): this
  6276. // Opens the bound tooltip at the specificed `latlng` or at the default tooltip anchor if no `latlng` is passed.
  6277. openTooltip: function (layer, latlng) {
  6278. if (!(layer instanceof L.Layer)) {
  6279. latlng = layer;
  6280. layer = this;
  6281. }
  6282. if (layer instanceof L.FeatureGroup) {
  6283. for (var id in this._layers) {
  6284. layer = this._layers[id];
  6285. break;
  6286. }
  6287. }
  6288. if (!latlng) {
  6289. latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();
  6290. }
  6291. if (this._tooltip && this._map) {
  6292. // set tooltip source to this layer
  6293. this._tooltip._source = layer;
  6294. // update the tooltip (content, layout, ect...)
  6295. this._tooltip.update();
  6296. // open the tooltip on the map
  6297. this._map.openTooltip(this._tooltip, latlng);
  6298. // Tooltip container may not be defined if not permanent and never
  6299. // opened.
  6300. if (this._tooltip.options.interactive && this._tooltip._container) {
  6301. L.DomUtil.addClass(this._tooltip._container, 'leaflet-clickable');
  6302. this.addInteractiveTarget(this._tooltip._container);
  6303. }
  6304. }
  6305. return this;
  6306. },
  6307. // @method closeTooltip(): this
  6308. // Closes the tooltip bound to this layer if it is open.
  6309. closeTooltip: function () {
  6310. if (this._tooltip) {
  6311. this._tooltip._close();
  6312. if (this._tooltip.options.interactive && this._tooltip._container) {
  6313. L.DomUtil.removeClass(this._tooltip._container, 'leaflet-clickable');
  6314. this.removeInteractiveTarget(this._tooltip._container);
  6315. }
  6316. }
  6317. return this;
  6318. },
  6319. // @method toggleTooltip(): this
  6320. // Opens or closes the tooltip bound to this layer depending on its current state.
  6321. toggleTooltip: function (target) {
  6322. if (this._tooltip) {
  6323. if (this._tooltip._map) {
  6324. this.closeTooltip();
  6325. } else {
  6326. this.openTooltip(target);
  6327. }
  6328. }
  6329. return this;
  6330. },
  6331. // @method isTooltipOpen(): boolean
  6332. // Returns `true` if the tooltip bound to this layer is currently open.
  6333. isTooltipOpen: function () {
  6334. return this._tooltip.isOpen();
  6335. },
  6336. // @method setTooltipContent(content: String|HTMLElement|Tooltip): this
  6337. // Sets the content of the tooltip bound to this layer.
  6338. setTooltipContent: function (content) {
  6339. if (this._tooltip) {
  6340. this._tooltip.setContent(content);
  6341. }
  6342. return this;
  6343. },
  6344. // @method getTooltip(): Tooltip
  6345. // Returns the tooltip bound to this layer.
  6346. getTooltip: function () {
  6347. return this._tooltip;
  6348. },
  6349. _openTooltip: function (e) {
  6350. var layer = e.layer || e.target;
  6351. if (!this._tooltip || !this._map) {
  6352. return;
  6353. }
  6354. this.openTooltip(layer, this._tooltip.options.sticky ? e.latlng : undefined);
  6355. },
  6356. _moveTooltip: function (e) {
  6357. var latlng = e.latlng, containerPoint, layerPoint;
  6358. if (this._tooltip.options.sticky && e.originalEvent) {
  6359. containerPoint = this._map.mouseEventToContainerPoint(e.originalEvent);
  6360. layerPoint = this._map.containerPointToLayerPoint(containerPoint);
  6361. latlng = this._map.layerPointToLatLng(layerPoint);
  6362. }
  6363. this._tooltip.setLatLng(latlng);
  6364. }
  6365. });
  6366. /*
  6367. * @class LayerGroup
  6368. * @aka L.LayerGroup
  6369. * @inherits Layer
  6370. *
  6371. * Used to group several layers and handle them as one. If you add it to the map,
  6372. * any layers added or removed from the group will be added/removed on the map as
  6373. * well. Extends `Layer`.
  6374. *
  6375. * @example
  6376. *
  6377. * ```js
  6378. * L.layerGroup([marker1, marker2])
  6379. * .addLayer(polyline)
  6380. * .addTo(map);
  6381. * ```
  6382. */
  6383. L.LayerGroup = L.Layer.extend({
  6384. initialize: function (layers) {
  6385. this._layers = {};
  6386. var i, len;
  6387. if (layers) {
  6388. for (i = 0, len = layers.length; i < len; i++) {
  6389. this.addLayer(layers[i]);
  6390. }
  6391. }
  6392. },
  6393. // @method addLayer(layer: Layer): this
  6394. // Adds the given layer to the group.
  6395. addLayer: function (layer) {
  6396. var id = this.getLayerId(layer);
  6397. this._layers[id] = layer;
  6398. if (this._map) {
  6399. this._map.addLayer(layer);
  6400. }
  6401. return this;
  6402. },
  6403. // @method removeLayer(layer: Layer): this
  6404. // Removes the given layer from the group.
  6405. // @alternative
  6406. // @method removeLayer(id: Number): this
  6407. // Removes the layer with the given internal ID from the group.
  6408. removeLayer: function (layer) {
  6409. var id = layer in this._layers ? layer : this.getLayerId(layer);
  6410. if (this._map && this._layers[id]) {
  6411. this._map.removeLayer(this._layers[id]);
  6412. }
  6413. delete this._layers[id];
  6414. return this;
  6415. },
  6416. // @method hasLayer(layer: Layer): Boolean
  6417. // Returns `true` if the given layer is currently added to the group.
  6418. hasLayer: function (layer) {
  6419. return !!layer && (layer in this._layers || this.getLayerId(layer) in this._layers);
  6420. },
  6421. // @method clearLayers(): this
  6422. // Removes all the layers from the group.
  6423. clearLayers: function () {
  6424. for (var i in this._layers) {
  6425. this.removeLayer(this._layers[i]);
  6426. }
  6427. return this;
  6428. },
  6429. // @method invoke(methodName: String, …): this
  6430. // Calls `methodName` on every layer contained in this group, passing any
  6431. // additional parameters. Has no effect if the layers contained do not
  6432. // implement `methodName`.
  6433. invoke: function (methodName) {
  6434. var args = Array.prototype.slice.call(arguments, 1),
  6435. i, layer;
  6436. for (i in this._layers) {
  6437. layer = this._layers[i];
  6438. if (layer[methodName]) {
  6439. layer[methodName].apply(layer, args);
  6440. }
  6441. }
  6442. return this;
  6443. },
  6444. onAdd: function (map) {
  6445. for (var i in this._layers) {
  6446. map.addLayer(this._layers[i]);
  6447. }
  6448. },
  6449. onRemove: function (map) {
  6450. for (var i in this._layers) {
  6451. map.removeLayer(this._layers[i]);
  6452. }
  6453. },
  6454. // @method eachLayer(fn: Function, context?: Object): this
  6455. // Iterates over the layers of the group, optionally specifying context of the iterator function.
  6456. // ```js
  6457. // group.eachLayer(function (layer) {
  6458. // layer.bindPopup('Hello');
  6459. // });
  6460. // ```
  6461. eachLayer: function (method, context) {
  6462. for (var i in this._layers) {
  6463. method.call(context, this._layers[i]);
  6464. }
  6465. return this;
  6466. },
  6467. // @method getLayer(id: Number): Layer
  6468. // Returns the layer with the given internal ID.
  6469. getLayer: function (id) {
  6470. return this._layers[id];
  6471. },
  6472. // @method getLayers(): Layer[]
  6473. // Returns an array of all the layers added to the group.
  6474. getLayers: function () {
  6475. var layers = [];
  6476. for (var i in this._layers) {
  6477. layers.push(this._layers[i]);
  6478. }
  6479. return layers;
  6480. },
  6481. // @method setZIndex(zIndex: Number): this
  6482. // Calls `setZIndex` on every layer contained in this group, passing the z-index.
  6483. setZIndex: function (zIndex) {
  6484. return this.invoke('setZIndex', zIndex);
  6485. },
  6486. // @method getLayerId(layer: Layer): Number
  6487. // Returns the internal ID for a layer
  6488. getLayerId: function (layer) {
  6489. return L.stamp(layer);
  6490. }
  6491. });
  6492. // @factory L.layerGroup(layers: Layer[])
  6493. // Create a layer group, optionally given an initial set of layers.
  6494. L.layerGroup = function (layers) {
  6495. return new L.LayerGroup(layers);
  6496. };
  6497. /*
  6498. * @class FeatureGroup
  6499. * @aka L.FeatureGroup
  6500. * @inherits LayerGroup
  6501. *
  6502. * Extended `LayerGroup` that makes it easier to do the same thing to all its member layers:
  6503. * * [`bindPopup`](#layer-bindpopup) binds a popup to all of the layers at once (likewise with [`bindTooltip`](#layer-bindtooltip))
  6504. * * Events are propagated to the `FeatureGroup`, so if the group has an event
  6505. * handler, it will handle events from any of the layers. This includes mouse events
  6506. * and custom events.
  6507. * * Has `layeradd` and `layerremove` events
  6508. *
  6509. * @example
  6510. *
  6511. * ```js
  6512. * L.featureGroup([marker1, marker2, polyline])
  6513. * .bindPopup('Hello world!')
  6514. * .on('click', function() { alert('Clicked on a member of the group!'); })
  6515. * .addTo(map);
  6516. * ```
  6517. */
  6518. L.FeatureGroup = L.LayerGroup.extend({
  6519. addLayer: function (layer) {
  6520. if (this.hasLayer(layer)) {
  6521. return this;
  6522. }
  6523. layer.addEventParent(this);
  6524. L.LayerGroup.prototype.addLayer.call(this, layer);
  6525. // @event layeradd: LayerEvent
  6526. // Fired when a layer is added to this `FeatureGroup`
  6527. return this.fire('layeradd', {layer: layer});
  6528. },
  6529. removeLayer: function (layer) {
  6530. if (!this.hasLayer(layer)) {
  6531. return this;
  6532. }
  6533. if (layer in this._layers) {
  6534. layer = this._layers[layer];
  6535. }
  6536. layer.removeEventParent(this);
  6537. L.LayerGroup.prototype.removeLayer.call(this, layer);
  6538. // @event layerremove: LayerEvent
  6539. // Fired when a layer is removed from this `FeatureGroup`
  6540. return this.fire('layerremove', {layer: layer});
  6541. },
  6542. // @method setStyle(style: Path options): this
  6543. // Sets the given path options to each layer of the group that has a `setStyle` method.
  6544. setStyle: function (style) {
  6545. return this.invoke('setStyle', style);
  6546. },
  6547. // @method bringToFront(): this
  6548. // Brings the layer group to the top of all other layers
  6549. bringToFront: function () {
  6550. return this.invoke('bringToFront');
  6551. },
  6552. // @method bringToBack(): this
  6553. // Brings the layer group to the top of all other layers
  6554. bringToBack: function () {
  6555. return this.invoke('bringToBack');
  6556. },
  6557. // @method getBounds(): LatLngBounds
  6558. // Returns the LatLngBounds of the Feature Group (created from bounds and coordinates of its children).
  6559. getBounds: function () {
  6560. var bounds = new L.LatLngBounds();
  6561. for (var id in this._layers) {
  6562. var layer = this._layers[id];
  6563. bounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng());
  6564. }
  6565. return bounds;
  6566. }
  6567. });
  6568. // @factory L.featureGroup(layers: Layer[])
  6569. // Create a feature group, optionally given an initial set of layers.
  6570. L.featureGroup = function (layers) {
  6571. return new L.FeatureGroup(layers);
  6572. };
  6573. /*
  6574. * @class Renderer
  6575. * @inherits Layer
  6576. * @aka L.Renderer
  6577. *
  6578. * Base class for vector renderer implementations (`SVG`, `Canvas`). Handles the
  6579. * DOM container of the renderer, its bounds, and its zoom animation.
  6580. *
  6581. * A `Renderer` works as an implicit layer group for all `Path`s - the renderer
  6582. * itself can be added or removed to the map. All paths use a renderer, which can
  6583. * be implicit (the map will decide the type of renderer and use it automatically)
  6584. * or explicit (using the [`renderer`](#path-renderer) option of the path).
  6585. *
  6586. * Do not use this class directly, use `SVG` and `Canvas` instead.
  6587. *
  6588. * @event update: Event
  6589. * Fired when the renderer updates its bounds, center and zoom, for example when
  6590. * its map has moved
  6591. */
  6592. L.Renderer = L.Layer.extend({
  6593. // @section
  6594. // @aka Renderer options
  6595. options: {
  6596. // @option padding: Number = 0.1
  6597. // How much to extend the clip area around the map view (relative to its size)
  6598. // e.g. 0.1 would be 10% of map view in each direction
  6599. padding: 0.1
  6600. },
  6601. initialize: function (options) {
  6602. L.setOptions(this, options);
  6603. L.stamp(this);
  6604. this._layers = this._layers || {};
  6605. },
  6606. onAdd: function () {
  6607. if (!this._container) {
  6608. this._initContainer(); // defined by renderer implementations
  6609. if (this._zoomAnimated) {
  6610. L.DomUtil.addClass(this._container, 'leaflet-zoom-animated');
  6611. }
  6612. }
  6613. this.getPane().appendChild(this._container);
  6614. this._update();
  6615. this.on('update', this._updatePaths, this);
  6616. },
  6617. onRemove: function () {
  6618. L.DomUtil.remove(this._container);
  6619. this.off('update', this._updatePaths, this);
  6620. },
  6621. getEvents: function () {
  6622. var events = {
  6623. viewreset: this._reset,
  6624. zoom: this._onZoom,
  6625. moveend: this._update,
  6626. zoomend: this._onZoomEnd
  6627. };
  6628. if (this._zoomAnimated) {
  6629. events.zoomanim = this._onAnimZoom;
  6630. }
  6631. return events;
  6632. },
  6633. _onAnimZoom: function (ev) {
  6634. this._updateTransform(ev.center, ev.zoom);
  6635. },
  6636. _onZoom: function () {
  6637. this._updateTransform(this._map.getCenter(), this._map.getZoom());
  6638. },
  6639. _updateTransform: function (center, zoom) {
  6640. var scale = this._map.getZoomScale(zoom, this._zoom),
  6641. position = L.DomUtil.getPosition(this._container),
  6642. viewHalf = this._map.getSize().multiplyBy(0.5 + this.options.padding),
  6643. currentCenterPoint = this._map.project(this._center, zoom),
  6644. destCenterPoint = this._map.project(center, zoom),
  6645. centerOffset = destCenterPoint.subtract(currentCenterPoint),
  6646. topLeftOffset = viewHalf.multiplyBy(-scale).add(position).add(viewHalf).subtract(centerOffset);
  6647. if (L.Browser.any3d) {
  6648. L.DomUtil.setTransform(this._container, topLeftOffset, scale);
  6649. } else {
  6650. L.DomUtil.setPosition(this._container, topLeftOffset);
  6651. }
  6652. },
  6653. _reset: function () {
  6654. this._update();
  6655. this._updateTransform(this._center, this._zoom);
  6656. for (var id in this._layers) {
  6657. this._layers[id]._reset();
  6658. }
  6659. },
  6660. _onZoomEnd: function () {
  6661. for (var id in this._layers) {
  6662. this._layers[id]._project();
  6663. }
  6664. },
  6665. _updatePaths: function () {
  6666. for (var id in this._layers) {
  6667. this._layers[id]._update();
  6668. }
  6669. },
  6670. _update: function () {
  6671. // Update pixel bounds of renderer container (for positioning/sizing/clipping later)
  6672. // Subclasses are responsible of firing the 'update' event.
  6673. var p = this.options.padding,
  6674. size = this._map.getSize(),
  6675. min = this._map.containerPointToLayerPoint(size.multiplyBy(-p)).round();
  6676. this._bounds = new L.Bounds(min, min.add(size.multiplyBy(1 + p * 2)).round());
  6677. this._center = this._map.getCenter();
  6678. this._zoom = this._map.getZoom();
  6679. }
  6680. });
  6681. L.Map.include({
  6682. // @namespace Map; @method getRenderer(layer: Path): Renderer
  6683. // Returns the instance of `Renderer` that should be used to render the given
  6684. // `Path`. It will ensure that the `renderer` options of the map and paths
  6685. // are respected, and that the renderers do exist on the map.
  6686. getRenderer: function (layer) {
  6687. // @namespace Path; @option renderer: Renderer
  6688. // Use this specific instance of `Renderer` for this path. Takes
  6689. // precedence over the map's [default renderer](#map-renderer).
  6690. var renderer = layer.options.renderer || this._getPaneRenderer(layer.options.pane) || this.options.renderer || this._renderer;
  6691. if (!renderer) {
  6692. // @namespace Map; @option preferCanvas: Boolean = false
  6693. // Whether `Path`s should be rendered on a `Canvas` renderer.
  6694. // By default, all `Path`s are rendered in a `SVG` renderer.
  6695. renderer = this._renderer = (this.options.preferCanvas && L.canvas()) || L.svg();
  6696. }
  6697. if (!this.hasLayer(renderer)) {
  6698. this.addLayer(renderer);
  6699. }
  6700. return renderer;
  6701. },
  6702. _getPaneRenderer: function (name) {
  6703. if (name === 'overlayPane' || name === undefined) {
  6704. return false;
  6705. }
  6706. var renderer = this._paneRenderers[name];
  6707. if (renderer === undefined) {
  6708. renderer = (L.SVG && L.svg({pane: name})) || (L.Canvas && L.canvas({pane: name}));
  6709. this._paneRenderers[name] = renderer;
  6710. }
  6711. return renderer;
  6712. }
  6713. });
  6714. /*
  6715. * @class Path
  6716. * @aka L.Path
  6717. * @inherits Interactive layer
  6718. *
  6719. * An abstract class that contains options and constants shared between vector
  6720. * overlays (Polygon, Polyline, Circle). Do not use it directly. Extends `Layer`.
  6721. */
  6722. L.Path = L.Layer.extend({
  6723. // @section
  6724. // @aka Path options
  6725. options: {
  6726. // @option stroke: Boolean = true
  6727. // Whether to draw stroke along the path. Set it to `false` to disable borders on polygons or circles.
  6728. stroke: true,
  6729. // @option color: String = '#3388ff'
  6730. // Stroke color
  6731. color: '#3388ff',
  6732. // @option weight: Number = 3
  6733. // Stroke width in pixels
  6734. weight: 3,
  6735. // @option opacity: Number = 1.0
  6736. // Stroke opacity
  6737. opacity: 1,
  6738. // @option lineCap: String= 'round'
  6739. // A string that defines [shape to be used at the end](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linecap) of the stroke.
  6740. lineCap: 'round',
  6741. // @option lineJoin: String = 'round'
  6742. // A string that defines [shape to be used at the corners](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linejoin) of the stroke.
  6743. lineJoin: 'round',
  6744. // @option dashArray: String = null
  6745. // A string that defines the stroke [dash pattern](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dasharray). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).
  6746. dashArray: null,
  6747. // @option dashOffset: String = null
  6748. // A string that defines the [distance into the dash pattern to start the dash](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dashoffset). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).
  6749. dashOffset: null,
  6750. // @option fill: Boolean = depends
  6751. // Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles.
  6752. fill: false,
  6753. // @option fillColor: String = *
  6754. // Fill color. Defaults to the value of the [`color`](#path-color) option
  6755. fillColor: null,
  6756. // @option fillOpacity: Number = 0.2
  6757. // Fill opacity.
  6758. fillOpacity: 0.2,
  6759. // @option fillRule: String = 'evenodd'
  6760. // A string that defines [how the inside of a shape](https://developer.mozilla.org/docs/Web/SVG/Attribute/fill-rule) is determined.
  6761. fillRule: 'evenodd',
  6762. // className: '',
  6763. // Option inherited from "Interactive layer" abstract class
  6764. interactive: true
  6765. },
  6766. beforeAdd: function (map) {
  6767. // Renderer is set here because we need to call renderer.getEvents
  6768. // before this.getEvents.
  6769. this._renderer = map.getRenderer(this);
  6770. },
  6771. onAdd: function () {
  6772. this._renderer._initPath(this);
  6773. this._reset();
  6774. this._renderer._addPath(this);
  6775. },
  6776. onRemove: function () {
  6777. this._renderer._removePath(this);
  6778. },
  6779. // @method redraw(): this
  6780. // Redraws the layer. Sometimes useful after you changed the coordinates that the path uses.
  6781. redraw: function () {
  6782. if (this._map) {
  6783. this._renderer._updatePath(this);
  6784. }
  6785. return this;
  6786. },
  6787. // @method setStyle(style: Path options): this
  6788. // Changes the appearance of a Path based on the options in the `Path options` object.
  6789. setStyle: function (style) {
  6790. L.setOptions(this, style);
  6791. if (this._renderer) {
  6792. this._renderer._updateStyle(this);
  6793. }
  6794. return this;
  6795. },
  6796. // @method bringToFront(): this
  6797. // Brings the layer to the top of all path layers.
  6798. bringToFront: function () {
  6799. if (this._renderer) {
  6800. this._renderer._bringToFront(this);
  6801. }
  6802. return this;
  6803. },
  6804. // @method bringToBack(): this
  6805. // Brings the layer to the bottom of all path layers.
  6806. bringToBack: function () {
  6807. if (this._renderer) {
  6808. this._renderer._bringToBack(this);
  6809. }
  6810. return this;
  6811. },
  6812. getElement: function () {
  6813. return this._path;
  6814. },
  6815. _reset: function () {
  6816. // defined in children classes
  6817. this._project();
  6818. this._update();
  6819. },
  6820. _clickTolerance: function () {
  6821. // used when doing hit detection for Canvas layers
  6822. return (this.options.stroke ? this.options.weight / 2 : 0) + (L.Browser.touch ? 10 : 0);
  6823. }
  6824. });
  6825. /*
  6826. * @namespace LineUtil
  6827. *
  6828. * Various utility functions for polyine points processing, used by Leaflet internally to make polylines lightning-fast.
  6829. */
  6830. L.LineUtil = {
  6831. // Simplify polyline with vertex reduction and Douglas-Peucker simplification.
  6832. // Improves rendering performance dramatically by lessening the number of points to draw.
  6833. // @function simplify(points: Point[], tolerance: Number): Point[]
  6834. // Dramatically reduces the number of points in a polyline while retaining
  6835. // its shape and returns a new array of simplified points, using the
  6836. // [Douglas-Peucker algorithm](http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm).
  6837. // Used for a huge performance boost when processing/displaying Leaflet polylines for
  6838. // each zoom level and also reducing visual noise. tolerance affects the amount of
  6839. // simplification (lesser value means higher quality but slower and with more points).
  6840. // Also released as a separated micro-library [Simplify.js](http://mourner.github.com/simplify-js/).
  6841. simplify: function (points, tolerance) {
  6842. if (!tolerance || !points.length) {
  6843. return points.slice();
  6844. }
  6845. var sqTolerance = tolerance * tolerance;
  6846. // stage 1: vertex reduction
  6847. points = this._reducePoints(points, sqTolerance);
  6848. // stage 2: Douglas-Peucker simplification
  6849. points = this._simplifyDP(points, sqTolerance);
  6850. return points;
  6851. },
  6852. // @function pointToSegmentDistance(p: Point, p1: Point, p2: Point): Number
  6853. // Returns the distance between point `p` and segment `p1` to `p2`.
  6854. pointToSegmentDistance: function (p, p1, p2) {
  6855. return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));
  6856. },
  6857. // @function closestPointOnSegment(p: Point, p1: Point, p2: Point): Number
  6858. // Returns the closest point from a point `p` on a segment `p1` to `p2`.
  6859. closestPointOnSegment: function (p, p1, p2) {
  6860. return this._sqClosestPointOnSegment(p, p1, p2);
  6861. },
  6862. // Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
  6863. _simplifyDP: function (points, sqTolerance) {
  6864. var len = points.length,
  6865. ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
  6866. markers = new ArrayConstructor(len);
  6867. markers[0] = markers[len - 1] = 1;
  6868. this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);
  6869. var i,
  6870. newPoints = [];
  6871. for (i = 0; i < len; i++) {
  6872. if (markers[i]) {
  6873. newPoints.push(points[i]);
  6874. }
  6875. }
  6876. return newPoints;
  6877. },
  6878. _simplifyDPStep: function (points, markers, sqTolerance, first, last) {
  6879. var maxSqDist = 0,
  6880. index, i, sqDist;
  6881. for (i = first + 1; i <= last - 1; i++) {
  6882. sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);
  6883. if (sqDist > maxSqDist) {
  6884. index = i;
  6885. maxSqDist = sqDist;
  6886. }
  6887. }
  6888. if (maxSqDist > sqTolerance) {
  6889. markers[index] = 1;
  6890. this._simplifyDPStep(points, markers, sqTolerance, first, index);
  6891. this._simplifyDPStep(points, markers, sqTolerance, index, last);
  6892. }
  6893. },
  6894. // reduce points that are too close to each other to a single point
  6895. _reducePoints: function (points, sqTolerance) {
  6896. var reducedPoints = [points[0]];
  6897. for (var i = 1, prev = 0, len = points.length; i < len; i++) {
  6898. if (this._sqDist(points[i], points[prev]) > sqTolerance) {
  6899. reducedPoints.push(points[i]);
  6900. prev = i;
  6901. }
  6902. }
  6903. if (prev < len - 1) {
  6904. reducedPoints.push(points[len - 1]);
  6905. }
  6906. return reducedPoints;
  6907. },
  6908. // @function clipSegment(a: Point, b: Point, bounds: Bounds, useLastCode?: Boolean, round?: Boolean): Point[]|Boolean
  6909. // Clips the segment a to b by rectangular bounds with the
  6910. // [Cohen-Sutherland algorithm](https://en.wikipedia.org/wiki/Cohen%E2%80%93Sutherland_algorithm)
  6911. // (modifying the segment points directly!). Used by Leaflet to only show polyline
  6912. // points that are on the screen or near, increasing performance.
  6913. clipSegment: function (a, b, bounds, useLastCode, round) {
  6914. var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),
  6915. codeB = this._getBitCode(b, bounds),
  6916. codeOut, p, newCode;
  6917. // save 2nd code to avoid calculating it on the next segment
  6918. this._lastCode = codeB;
  6919. while (true) {
  6920. // if a,b is inside the clip window (trivial accept)
  6921. if (!(codeA | codeB)) {
  6922. return [a, b];
  6923. }
  6924. // if a,b is outside the clip window (trivial reject)
  6925. if (codeA & codeB) {
  6926. return false;
  6927. }
  6928. // other cases
  6929. codeOut = codeA || codeB;
  6930. p = this._getEdgeIntersection(a, b, codeOut, bounds, round);
  6931. newCode = this._getBitCode(p, bounds);
  6932. if (codeOut === codeA) {
  6933. a = p;
  6934. codeA = newCode;
  6935. } else {
  6936. b = p;
  6937. codeB = newCode;
  6938. }
  6939. }
  6940. },
  6941. _getEdgeIntersection: function (a, b, code, bounds, round) {
  6942. var dx = b.x - a.x,
  6943. dy = b.y - a.y,
  6944. min = bounds.min,
  6945. max = bounds.max,
  6946. x, y;
  6947. if (code & 8) { // top
  6948. x = a.x + dx * (max.y - a.y) / dy;
  6949. y = max.y;
  6950. } else if (code & 4) { // bottom
  6951. x = a.x + dx * (min.y - a.y) / dy;
  6952. y = min.y;
  6953. } else if (code & 2) { // right
  6954. x = max.x;
  6955. y = a.y + dy * (max.x - a.x) / dx;
  6956. } else if (code & 1) { // left
  6957. x = min.x;
  6958. y = a.y + dy * (min.x - a.x) / dx;
  6959. }
  6960. return new L.Point(x, y, round);
  6961. },
  6962. _getBitCode: function (p, bounds) {
  6963. var code = 0;
  6964. if (p.x < bounds.min.x) { // left
  6965. code |= 1;
  6966. } else if (p.x > bounds.max.x) { // right
  6967. code |= 2;
  6968. }
  6969. if (p.y < bounds.min.y) { // bottom
  6970. code |= 4;
  6971. } else if (p.y > bounds.max.y) { // top
  6972. code |= 8;
  6973. }
  6974. return code;
  6975. },
  6976. // square distance (to avoid unnecessary Math.sqrt calls)
  6977. _sqDist: function (p1, p2) {
  6978. var dx = p2.x - p1.x,
  6979. dy = p2.y - p1.y;
  6980. return dx * dx + dy * dy;
  6981. },
  6982. // return closest point on segment or distance to that point
  6983. _sqClosestPointOnSegment: function (p, p1, p2, sqDist) {
  6984. var x = p1.x,
  6985. y = p1.y,
  6986. dx = p2.x - x,
  6987. dy = p2.y - y,
  6988. dot = dx * dx + dy * dy,
  6989. t;
  6990. if (dot > 0) {
  6991. t = ((p.x - x) * dx + (p.y - y) * dy) / dot;
  6992. if (t > 1) {
  6993. x = p2.x;
  6994. y = p2.y;
  6995. } else if (t > 0) {
  6996. x += dx * t;
  6997. y += dy * t;
  6998. }
  6999. }
  7000. dx = p.x - x;
  7001. dy = p.y - y;
  7002. return sqDist ? dx * dx + dy * dy : new L.Point(x, y);
  7003. }
  7004. };
  7005. /*
  7006. * @class Polyline
  7007. * @aka L.Polyline
  7008. * @inherits Path
  7009. *
  7010. * A class for drawing polyline overlays on a map. Extends `Path`.
  7011. *
  7012. * @example
  7013. *
  7014. * ```js
  7015. * // create a red polyline from an array of LatLng points
  7016. * var latlngs = [
  7017. * [-122.68, 45.51],
  7018. * [-122.43, 37.77],
  7019. * [-118.2, 34.04]
  7020. * ];
  7021. *
  7022. * var polyline = L.polyline(latlngs, {color: 'red'}).addTo(map);
  7023. *
  7024. * // zoom the map to the polyline
  7025. * map.fitBounds(polyline.getBounds());
  7026. * ```
  7027. *
  7028. * You can also pass a multi-dimensional array to represent a `MultiPolyline` shape:
  7029. *
  7030. * ```js
  7031. * // create a red polyline from an array of arrays of LatLng points
  7032. * var latlngs = [
  7033. * [[-122.68, 45.51],
  7034. * [-122.43, 37.77],
  7035. * [-118.2, 34.04]],
  7036. * [[-73.91, 40.78],
  7037. * [-87.62, 41.83],
  7038. * [-96.72, 32.76]]
  7039. * ];
  7040. * ```
  7041. */
  7042. L.Polyline = L.Path.extend({
  7043. // @section
  7044. // @aka Polyline options
  7045. options: {
  7046. // @option smoothFactor: Number = 1.0
  7047. // How much to simplify the polyline on each zoom level. More means
  7048. // better performance and smoother look, and less means more accurate representation.
  7049. smoothFactor: 1.0,
  7050. // @option noClip: Boolean = false
  7051. // Disable polyline clipping.
  7052. noClip: false
  7053. },
  7054. initialize: function (latlngs, options) {
  7055. L.setOptions(this, options);
  7056. this._setLatLngs(latlngs);
  7057. },
  7058. // @method getLatLngs(): LatLng[]
  7059. // Returns an array of the points in the path, or nested arrays of points in case of multi-polyline.
  7060. getLatLngs: function () {
  7061. return this._latlngs;
  7062. },
  7063. // @method setLatLngs(latlngs: LatLng[]): this
  7064. // Replaces all the points in the polyline with the given array of geographical points.
  7065. setLatLngs: function (latlngs) {
  7066. this._setLatLngs(latlngs);
  7067. return this.redraw();
  7068. },
  7069. // @method isEmpty(): Boolean
  7070. // Returns `true` if the Polyline has no LatLngs.
  7071. isEmpty: function () {
  7072. return !this._latlngs.length;
  7073. },
  7074. closestLayerPoint: function (p) {
  7075. var minDistance = Infinity,
  7076. minPoint = null,
  7077. closest = L.LineUtil._sqClosestPointOnSegment,
  7078. p1, p2;
  7079. for (var j = 0, jLen = this._parts.length; j < jLen; j++) {
  7080. var points = this._parts[j];
  7081. for (var i = 1, len = points.length; i < len; i++) {
  7082. p1 = points[i - 1];
  7083. p2 = points[i];
  7084. var sqDist = closest(p, p1, p2, true);
  7085. if (sqDist < minDistance) {
  7086. minDistance = sqDist;
  7087. minPoint = closest(p, p1, p2);
  7088. }
  7089. }
  7090. }
  7091. if (minPoint) {
  7092. minPoint.distance = Math.sqrt(minDistance);
  7093. }
  7094. return minPoint;
  7095. },
  7096. // @method getCenter(): LatLng
  7097. // Returns the center ([centroid](http://en.wikipedia.org/wiki/Centroid)) of the polyline.
  7098. getCenter: function () {
  7099. // throws error when not yet added to map as this center calculation requires projected coordinates
  7100. if (!this._map) {
  7101. throw new Error('Must add layer to map before using getCenter()');
  7102. }
  7103. var i, halfDist, segDist, dist, p1, p2, ratio,
  7104. points = this._rings[0],
  7105. len = points.length;
  7106. if (!len) { return null; }
  7107. // polyline centroid algorithm; only uses the first ring if there are multiple
  7108. for (i = 0, halfDist = 0; i < len - 1; i++) {
  7109. halfDist += points[i].distanceTo(points[i + 1]) / 2;
  7110. }
  7111. // The line is so small in the current view that all points are on the same pixel.
  7112. if (halfDist === 0) {
  7113. return this._map.layerPointToLatLng(points[0]);
  7114. }
  7115. for (i = 0, dist = 0; i < len - 1; i++) {
  7116. p1 = points[i];
  7117. p2 = points[i + 1];
  7118. segDist = p1.distanceTo(p2);
  7119. dist += segDist;
  7120. if (dist > halfDist) {
  7121. ratio = (dist - halfDist) / segDist;
  7122. return this._map.layerPointToLatLng([
  7123. p2.x - ratio * (p2.x - p1.x),
  7124. p2.y - ratio * (p2.y - p1.y)
  7125. ]);
  7126. }
  7127. }
  7128. },
  7129. // @method getBounds(): LatLngBounds
  7130. // Returns the `LatLngBounds` of the path.
  7131. getBounds: function () {
  7132. return this._bounds;
  7133. },
  7134. // @method addLatLng(latlng: LatLng, latlngs? LatLng[]): this
  7135. // Adds a given point to the polyline. By default, adds to the first ring of
  7136. // the polyline in case of a multi-polyline, but can be overridden by passing
  7137. // a specific ring as a LatLng array (that you can earlier access with [`getLatLngs`](#polyline-getlatlngs)).
  7138. addLatLng: function (latlng, latlngs) {
  7139. latlngs = latlngs || this._defaultShape();
  7140. latlng = L.latLng(latlng);
  7141. latlngs.push(latlng);
  7142. this._bounds.extend(latlng);
  7143. return this.redraw();
  7144. },
  7145. _setLatLngs: function (latlngs) {
  7146. this._bounds = new L.LatLngBounds();
  7147. this._latlngs = this._convertLatLngs(latlngs);
  7148. },
  7149. _defaultShape: function () {
  7150. return L.Polyline._flat(this._latlngs) ? this._latlngs : this._latlngs[0];
  7151. },
  7152. // recursively convert latlngs input into actual LatLng instances; calculate bounds along the way
  7153. _convertLatLngs: function (latlngs) {
  7154. var result = [],
  7155. flat = L.Polyline._flat(latlngs);
  7156. for (var i = 0, len = latlngs.length; i < len; i++) {
  7157. if (flat) {
  7158. result[i] = L.latLng(latlngs[i]);
  7159. this._bounds.extend(result[i]);
  7160. } else {
  7161. result[i] = this._convertLatLngs(latlngs[i]);
  7162. }
  7163. }
  7164. return result;
  7165. },
  7166. _project: function () {
  7167. var pxBounds = new L.Bounds();
  7168. this._rings = [];
  7169. this._projectLatlngs(this._latlngs, this._rings, pxBounds);
  7170. var w = this._clickTolerance(),
  7171. p = new L.Point(w, w);
  7172. if (this._bounds.isValid() && pxBounds.isValid()) {
  7173. pxBounds.min._subtract(p);
  7174. pxBounds.max._add(p);
  7175. this._pxBounds = pxBounds;
  7176. }
  7177. },
  7178. // recursively turns latlngs into a set of rings with projected coordinates
  7179. _projectLatlngs: function (latlngs, result, projectedBounds) {
  7180. var flat = latlngs[0] instanceof L.LatLng,
  7181. len = latlngs.length,
  7182. i, ring;
  7183. if (flat) {
  7184. ring = [];
  7185. for (i = 0; i < len; i++) {
  7186. ring[i] = this._map.latLngToLayerPoint(latlngs[i]);
  7187. projectedBounds.extend(ring[i]);
  7188. }
  7189. result.push(ring);
  7190. } else {
  7191. for (i = 0; i < len; i++) {
  7192. this._projectLatlngs(latlngs[i], result, projectedBounds);
  7193. }
  7194. }
  7195. },
  7196. // clip polyline by renderer bounds so that we have less to render for performance
  7197. _clipPoints: function () {
  7198. var bounds = this._renderer._bounds;
  7199. this._parts = [];
  7200. if (!this._pxBounds || !this._pxBounds.intersects(bounds)) {
  7201. return;
  7202. }
  7203. if (this.options.noClip) {
  7204. this._parts = this._rings;
  7205. return;
  7206. }
  7207. var parts = this._parts,
  7208. i, j, k, len, len2, segment, points;
  7209. for (i = 0, k = 0, len = this._rings.length; i < len; i++) {
  7210. points = this._rings[i];
  7211. for (j = 0, len2 = points.length; j < len2 - 1; j++) {
  7212. segment = L.LineUtil.clipSegment(points[j], points[j + 1], bounds, j, true);
  7213. if (!segment) { continue; }
  7214. parts[k] = parts[k] || [];
  7215. parts[k].push(segment[0]);
  7216. // if segment goes out of screen, or it's the last one, it's the end of the line part
  7217. if ((segment[1] !== points[j + 1]) || (j === len2 - 2)) {
  7218. parts[k].push(segment[1]);
  7219. k++;
  7220. }
  7221. }
  7222. }
  7223. },
  7224. // simplify each clipped part of the polyline for performance
  7225. _simplifyPoints: function () {
  7226. var parts = this._parts,
  7227. tolerance = this.options.smoothFactor;
  7228. for (var i = 0, len = parts.length; i < len; i++) {
  7229. parts[i] = L.LineUtil.simplify(parts[i], tolerance);
  7230. }
  7231. },
  7232. _update: function () {
  7233. if (!this._map) { return; }
  7234. this._clipPoints();
  7235. this._simplifyPoints();
  7236. this._updatePath();
  7237. },
  7238. _updatePath: function () {
  7239. this._renderer._updatePoly(this);
  7240. }
  7241. });
  7242. // @factory L.polyline(latlngs: LatLng[], options?: Polyline options)
  7243. // Instantiates a polyline object given an array of geographical points and
  7244. // optionally an options object. You can create a `Polyline` object with
  7245. // multiple separate lines (`MultiPolyline`) by passing an array of arrays
  7246. // of geographic points.
  7247. L.polyline = function (latlngs, options) {
  7248. return new L.Polyline(latlngs, options);
  7249. };
  7250. L.Polyline._flat = function (latlngs) {
  7251. // true if it's a flat array of latlngs; false if nested
  7252. return !L.Util.isArray(latlngs[0]) || (typeof latlngs[0][0] !== 'object' && typeof latlngs[0][0] !== 'undefined');
  7253. };
  7254. /*
  7255. * @namespace PolyUtil
  7256. * Various utility functions for polygon geometries.
  7257. */
  7258. L.PolyUtil = {};
  7259. /* @function clipPolygon(points: Point[], bounds: Bounds, round?: Boolean): Point[]
  7260. * Clips the polygon geometry defined by the given `points` by the given bounds (using the [Sutherland-Hodgeman algorithm](https://en.wikipedia.org/wiki/Sutherland%E2%80%93Hodgman_algorithm)).
  7261. * Used by Leaflet to only show polygon points that are on the screen or near, increasing
  7262. * performance. Note that polygon points needs different algorithm for clipping
  7263. * than polyline, so there's a seperate method for it.
  7264. */
  7265. L.PolyUtil.clipPolygon = function (points, bounds, round) {
  7266. var clippedPoints,
  7267. edges = [1, 4, 2, 8],
  7268. i, j, k,
  7269. a, b,
  7270. len, edge, p,
  7271. lu = L.LineUtil;
  7272. for (i = 0, len = points.length; i < len; i++) {
  7273. points[i]._code = lu._getBitCode(points[i], bounds);
  7274. }
  7275. // for each edge (left, bottom, right, top)
  7276. for (k = 0; k < 4; k++) {
  7277. edge = edges[k];
  7278. clippedPoints = [];
  7279. for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
  7280. a = points[i];
  7281. b = points[j];
  7282. // if a is inside the clip window
  7283. if (!(a._code & edge)) {
  7284. // if b is outside the clip window (a->b goes out of screen)
  7285. if (b._code & edge) {
  7286. p = lu._getEdgeIntersection(b, a, edge, bounds, round);
  7287. p._code = lu._getBitCode(p, bounds);
  7288. clippedPoints.push(p);
  7289. }
  7290. clippedPoints.push(a);
  7291. // else if b is inside the clip window (a->b enters the screen)
  7292. } else if (!(b._code & edge)) {
  7293. p = lu._getEdgeIntersection(b, a, edge, bounds, round);
  7294. p._code = lu._getBitCode(p, bounds);
  7295. clippedPoints.push(p);
  7296. }
  7297. }
  7298. points = clippedPoints;
  7299. }
  7300. return points;
  7301. };
  7302. /*
  7303. * @class Polygon
  7304. * @aka L.Polygon
  7305. * @inherits Polyline
  7306. *
  7307. * A class for drawing polygon overlays on a map. Extends `Polyline`.
  7308. *
  7309. * Note that points you pass when creating a polygon shouldn't have an additional last point equal to the first one — it's better to filter out such points.
  7310. *
  7311. *
  7312. * @example
  7313. *
  7314. * ```js
  7315. * // create a red polygon from an array of LatLng points
  7316. * var latlngs = [[-111.03, 41],[-111.04, 45],[-104.05, 45],[-104.05, 41]];
  7317. *
  7318. * var polygon = L.polygon(latlngs, {color: 'red'}).addTo(map);
  7319. *
  7320. * // zoom the map to the polygon
  7321. * map.fitBounds(polygon.getBounds());
  7322. * ```
  7323. *
  7324. * You can also pass an array of arrays of latlngs, with the first array representing the outer shape and the other arrays representing holes in the outer shape:
  7325. *
  7326. * ```js
  7327. * var latlngs = [
  7328. * [[-111.03, 41],[-111.04, 45],[-104.05, 45],[-104.05, 41]], // outer ring
  7329. * [[-108.58,37.29],[-108.58,40.71],[-102.50,40.71],[-102.50,37.29]] // hole
  7330. * ];
  7331. * ```
  7332. *
  7333. * Additionally, you can pass a multi-dimensional array to represent a MultiPolygon shape.
  7334. *
  7335. * ```js
  7336. * var latlngs = [
  7337. * [ // first polygon
  7338. * [[-111.03, 41],[-111.04, 45],[-104.05, 45],[-104.05, 41]], // outer ring
  7339. * [[-108.58,37.29],[-108.58,40.71],[-102.50,40.71],[-102.50,37.29]] // hole
  7340. * ],
  7341. * [ // second polygon
  7342. * [[-109.05, 37],[-109.03, 41],[-102.05, 41],[-102.04, 37],[-109.05, 38]]
  7343. * ]
  7344. * ];
  7345. * ```
  7346. */
  7347. L.Polygon = L.Polyline.extend({
  7348. options: {
  7349. fill: true
  7350. },
  7351. isEmpty: function () {
  7352. return !this._latlngs.length || !this._latlngs[0].length;
  7353. },
  7354. getCenter: function () {
  7355. // throws error when not yet added to map as this center calculation requires projected coordinates
  7356. if (!this._map) {
  7357. throw new Error('Must add layer to map before using getCenter()');
  7358. }
  7359. var i, j, p1, p2, f, area, x, y, center,
  7360. points = this._rings[0],
  7361. len = points.length;
  7362. if (!len) { return null; }
  7363. // polygon centroid algorithm; only uses the first ring if there are multiple
  7364. area = x = y = 0;
  7365. for (i = 0, j = len - 1; i < len; j = i++) {
  7366. p1 = points[i];
  7367. p2 = points[j];
  7368. f = p1.y * p2.x - p2.y * p1.x;
  7369. x += (p1.x + p2.x) * f;
  7370. y += (p1.y + p2.y) * f;
  7371. area += f * 3;
  7372. }
  7373. if (area === 0) {
  7374. // Polygon is so small that all points are on same pixel.
  7375. center = points[0];
  7376. } else {
  7377. center = [x / area, y / area];
  7378. }
  7379. return this._map.layerPointToLatLng(center);
  7380. },
  7381. _convertLatLngs: function (latlngs) {
  7382. var result = L.Polyline.prototype._convertLatLngs.call(this, latlngs),
  7383. len = result.length;
  7384. // remove last point if it equals first one
  7385. if (len >= 2 && result[0] instanceof L.LatLng && result[0].equals(result[len - 1])) {
  7386. result.pop();
  7387. }
  7388. return result;
  7389. },
  7390. _setLatLngs: function (latlngs) {
  7391. L.Polyline.prototype._setLatLngs.call(this, latlngs);
  7392. if (L.Polyline._flat(this._latlngs)) {
  7393. this._latlngs = [this._latlngs];
  7394. }
  7395. },
  7396. _defaultShape: function () {
  7397. return L.Polyline._flat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0];
  7398. },
  7399. _clipPoints: function () {
  7400. // polygons need a different clipping algorithm so we redefine that
  7401. var bounds = this._renderer._bounds,
  7402. w = this.options.weight,
  7403. p = new L.Point(w, w);
  7404. // increase clip padding by stroke width to avoid stroke on clip edges
  7405. bounds = new L.Bounds(bounds.min.subtract(p), bounds.max.add(p));
  7406. this._parts = [];
  7407. if (!this._pxBounds || !this._pxBounds.intersects(bounds)) {
  7408. return;
  7409. }
  7410. if (this.options.noClip) {
  7411. this._parts = this._rings;
  7412. return;
  7413. }
  7414. for (var i = 0, len = this._rings.length, clipped; i < len; i++) {
  7415. clipped = L.PolyUtil.clipPolygon(this._rings[i], bounds, true);
  7416. if (clipped.length) {
  7417. this._parts.push(clipped);
  7418. }
  7419. }
  7420. },
  7421. _updatePath: function () {
  7422. this._renderer._updatePoly(this, true);
  7423. }
  7424. });
  7425. // @factory L.polygon(latlngs: LatLng[], options?: Polyline options)
  7426. L.polygon = function (latlngs, options) {
  7427. return new L.Polygon(latlngs, options);
  7428. };
  7429. /*
  7430. * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.
  7431. */
  7432. /*
  7433. * @class Rectangle
  7434. * @aka L.Retangle
  7435. * @inherits Polygon
  7436. *
  7437. * A class for drawing rectangle overlays on a map. Extends `Polygon`.
  7438. *
  7439. * @example
  7440. *
  7441. * ```js
  7442. * // define rectangle geographical bounds
  7443. * var bounds = [[54.559322, -5.767822], [56.1210604, -3.021240]];
  7444. *
  7445. * // create an orange rectangle
  7446. * L.rectangle(bounds, {color: "#ff7800", weight: 1}).addTo(map);
  7447. *
  7448. * // zoom the map to the rectangle bounds
  7449. * map.fitBounds(bounds);
  7450. * ```
  7451. *
  7452. */
  7453. L.Rectangle = L.Polygon.extend({
  7454. initialize: function (latLngBounds, options) {
  7455. L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);
  7456. },
  7457. // @method setBounds(latLngBounds: LatLngBounds): this
  7458. // Redraws the rectangle with the passed bounds.
  7459. setBounds: function (latLngBounds) {
  7460. return this.setLatLngs(this._boundsToLatLngs(latLngBounds));
  7461. },
  7462. _boundsToLatLngs: function (latLngBounds) {
  7463. latLngBounds = L.latLngBounds(latLngBounds);
  7464. return [
  7465. latLngBounds.getSouthWest(),
  7466. latLngBounds.getNorthWest(),
  7467. latLngBounds.getNorthEast(),
  7468. latLngBounds.getSouthEast()
  7469. ];
  7470. }
  7471. });
  7472. // @factory L.rectangle(latLngBounds: LatLngBounds, options?: Polyline options)
  7473. L.rectangle = function (latLngBounds, options) {
  7474. return new L.Rectangle(latLngBounds, options);
  7475. };
  7476. /*
  7477. * @class CircleMarker
  7478. * @aka L.CircleMarker
  7479. * @inherits Path
  7480. *
  7481. * A circle of a fixed size with radius specified in pixels. Extends `Path`.
  7482. */
  7483. L.CircleMarker = L.Path.extend({
  7484. // @section
  7485. // @aka CircleMarker options
  7486. options: {
  7487. fill: true,
  7488. // @option radius: Number = 10
  7489. // Radius of the circle marker, in pixels
  7490. radius: 10
  7491. },
  7492. initialize: function (latlng, options) {
  7493. L.setOptions(this, options);
  7494. this._latlng = L.latLng(latlng);
  7495. this._radius = this.options.radius;
  7496. },
  7497. // @method setLatLng(latLng: LatLng): this
  7498. // Sets the position of a circle marker to a new location.
  7499. setLatLng: function (latlng) {
  7500. this._latlng = L.latLng(latlng);
  7501. this.redraw();
  7502. return this.fire('move', {latlng: this._latlng});
  7503. },
  7504. // @method getLatLng(): LatLng
  7505. // Returns the current geographical position of the circle marker
  7506. getLatLng: function () {
  7507. return this._latlng;
  7508. },
  7509. // @method setRadius(radius: Number): this
  7510. // Sets the radius of a circle marker. Units are in pixels.
  7511. setRadius: function (radius) {
  7512. this.options.radius = this._radius = radius;
  7513. return this.redraw();
  7514. },
  7515. // @method getRadius(): Number
  7516. // Returns the current radius of the circle
  7517. getRadius: function () {
  7518. return this._radius;
  7519. },
  7520. setStyle : function (options) {
  7521. var radius = options && options.radius || this._radius;
  7522. L.Path.prototype.setStyle.call(this, options);
  7523. this.setRadius(radius);
  7524. return this;
  7525. },
  7526. _project: function () {
  7527. this._point = this._map.latLngToLayerPoint(this._latlng);
  7528. this._updateBounds();
  7529. },
  7530. _updateBounds: function () {
  7531. var r = this._radius,
  7532. r2 = this._radiusY || r,
  7533. w = this._clickTolerance(),
  7534. p = [r + w, r2 + w];
  7535. this._pxBounds = new L.Bounds(this._point.subtract(p), this._point.add(p));
  7536. },
  7537. _update: function () {
  7538. if (this._map) {
  7539. this._updatePath();
  7540. }
  7541. },
  7542. _updatePath: function () {
  7543. this._renderer._updateCircle(this);
  7544. },
  7545. _empty: function () {
  7546. return this._radius && !this._renderer._bounds.intersects(this._pxBounds);
  7547. }
  7548. });
  7549. // @factory L.circleMarker(latlng: LatLng, options?: CircleMarker options)
  7550. // Instantiates a circle marker object given a geographical point, and an optional options object.
  7551. L.circleMarker = function (latlng, options) {
  7552. return new L.CircleMarker(latlng, options);
  7553. };
  7554. /*
  7555. * @class Circle
  7556. * @aka L.Circle
  7557. * @inherits CircleMarker
  7558. *
  7559. * A class for drawing circle overlays on a map. Extends `CircleMarker`.
  7560. *
  7561. * It's an approximation and starts to diverge from a real circle closer to poles (due to projection distortion).
  7562. *
  7563. * @example
  7564. *
  7565. * ```js
  7566. * L.circle([50.5, 30.5], {radius: 200}).addTo(map);
  7567. * ```
  7568. */
  7569. L.Circle = L.CircleMarker.extend({
  7570. initialize: function (latlng, options, legacyOptions) {
  7571. if (typeof options === 'number') {
  7572. // Backwards compatibility with 0.7.x factory (latlng, radius, options?)
  7573. options = L.extend({}, legacyOptions, {radius: options});
  7574. }
  7575. L.setOptions(this, options);
  7576. this._latlng = L.latLng(latlng);
  7577. if (isNaN(this.options.radius)) { throw new Error('Circle radius cannot be NaN'); }
  7578. // @section
  7579. // @aka Circle options
  7580. // @option radius: Number; Radius of the circle, in meters.
  7581. this._mRadius = this.options.radius;
  7582. },
  7583. // @method setRadius(radius: Number): this
  7584. // Sets the radius of a circle. Units are in meters.
  7585. setRadius: function (radius) {
  7586. this._mRadius = radius;
  7587. return this.redraw();
  7588. },
  7589. // @method getRadius(): Number
  7590. // Returns the current radius of a circle. Units are in meters.
  7591. getRadius: function () {
  7592. return this._mRadius;
  7593. },
  7594. // @method getBounds(): LatLngBounds
  7595. // Returns the `LatLngBounds` of the path.
  7596. getBounds: function () {
  7597. var half = [this._radius, this._radiusY || this._radius];
  7598. return new L.LatLngBounds(
  7599. this._map.layerPointToLatLng(this._point.subtract(half)),
  7600. this._map.layerPointToLatLng(this._point.add(half)));
  7601. },
  7602. setStyle: L.Path.prototype.setStyle,
  7603. _project: function () {
  7604. var lng = this._latlng.lng,
  7605. lat = this._latlng.lat,
  7606. map = this._map,
  7607. crs = map.options.crs;
  7608. if (crs.distance === L.CRS.Earth.distance) {
  7609. var d = Math.PI / 180,
  7610. latR = (this._mRadius / L.CRS.Earth.R) / d,
  7611. top = map.project([lat + latR, lng]),
  7612. bottom = map.project([lat - latR, lng]),
  7613. p = top.add(bottom).divideBy(2),
  7614. lat2 = map.unproject(p).lat,
  7615. lngR = Math.acos((Math.cos(latR * d) - Math.sin(lat * d) * Math.sin(lat2 * d)) /
  7616. (Math.cos(lat * d) * Math.cos(lat2 * d))) / d;
  7617. if (isNaN(lngR) || lngR === 0) {
  7618. lngR = latR / Math.cos(Math.PI / 180 * lat); // Fallback for edge case, #2425
  7619. }
  7620. this._point = p.subtract(map.getPixelOrigin());
  7621. this._radius = isNaN(lngR) ? 0 : Math.max(Math.round(p.x - map.project([lat2, lng - lngR]).x), 1);
  7622. this._radiusY = Math.max(Math.round(p.y - top.y), 1);
  7623. } else {
  7624. var latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0]));
  7625. this._point = map.latLngToLayerPoint(this._latlng);
  7626. this._radius = this._point.x - map.latLngToLayerPoint(latlng2).x;
  7627. }
  7628. this._updateBounds();
  7629. }
  7630. });
  7631. // @factory L.circle(latlng: LatLng, options?: Circle options)
  7632. // Instantiates a circle object given a geographical point, and an options object
  7633. // which contains the circle radius.
  7634. // @alternative
  7635. // @factory L.circle(latlng: LatLng, radius: Number, options?: Circle options)
  7636. // Obsolete way of instantiating a circle, for compatibility with 0.7.x code.
  7637. // Do not use in new applications or plugins.
  7638. L.circle = function (latlng, options, legacyOptions) {
  7639. return new L.Circle(latlng, options, legacyOptions);
  7640. };
  7641. /*
  7642. * @class SVG
  7643. * @inherits Renderer
  7644. * @aka L.SVG
  7645. *
  7646. * Allows vector layers to be displayed with [SVG](https://developer.mozilla.org/docs/Web/SVG).
  7647. * Inherits `Renderer`.
  7648. *
  7649. * Due to [technical limitations](http://caniuse.com/#search=svg), SVG is not
  7650. * available in all web browsers, notably Android 2.x and 3.x.
  7651. *
  7652. * Although SVG is not available on IE7 and IE8, these browsers support
  7653. * [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language)
  7654. * (a now deprecated technology), and the SVG renderer will fall back to VML in
  7655. * this case.
  7656. *
  7657. * @example
  7658. *
  7659. * Use SVG by default for all paths in the map:
  7660. *
  7661. * ```js
  7662. * var map = L.map('map', {
  7663. * renderer: L.svg()
  7664. * });
  7665. * ```
  7666. *
  7667. * Use a SVG renderer with extra padding for specific vector geometries:
  7668. *
  7669. * ```js
  7670. * var map = L.map('map');
  7671. * var myRenderer = L.svg({ padding: 0.5 });
  7672. * var line = L.polyline( coordinates, { renderer: myRenderer } );
  7673. * var circle = L.circle( center, { renderer: myRenderer } );
  7674. * ```
  7675. */
  7676. L.SVG = L.Renderer.extend({
  7677. getEvents: function () {
  7678. var events = L.Renderer.prototype.getEvents.call(this);
  7679. events.zoomstart = this._onZoomStart;
  7680. return events;
  7681. },
  7682. _initContainer: function () {
  7683. this._container = L.SVG.create('svg');
  7684. // makes it possible to click through svg root; we'll reset it back in individual paths
  7685. this._container.setAttribute('pointer-events', 'none');
  7686. this._rootGroup = L.SVG.create('g');
  7687. this._container.appendChild(this._rootGroup);
  7688. },
  7689. _onZoomStart: function () {
  7690. // Drag-then-pinch interactions might mess up the center and zoom.
  7691. // In this case, the easiest way to prevent this is re-do the renderer
  7692. // bounds and padding when the zooming starts.
  7693. this._update();
  7694. },
  7695. _update: function () {
  7696. if (this._map._animatingZoom && this._bounds) { return; }
  7697. L.Renderer.prototype._update.call(this);
  7698. var b = this._bounds,
  7699. size = b.getSize(),
  7700. container = this._container;
  7701. // set size of svg-container if changed
  7702. if (!this._svgSize || !this._svgSize.equals(size)) {
  7703. this._svgSize = size;
  7704. container.setAttribute('width', size.x);
  7705. container.setAttribute('height', size.y);
  7706. }
  7707. // movement: update container viewBox so that we don't have to change coordinates of individual layers
  7708. L.DomUtil.setPosition(container, b.min);
  7709. container.setAttribute('viewBox', [b.min.x, b.min.y, size.x, size.y].join(' '));
  7710. this.fire('update');
  7711. },
  7712. // methods below are called by vector layers implementations
  7713. _initPath: function (layer) {
  7714. var path = layer._path = L.SVG.create('path');
  7715. // @namespace Path
  7716. // @option className: String = null
  7717. // Custom class name set on an element. Only for SVG renderer.
  7718. if (layer.options.className) {
  7719. L.DomUtil.addClass(path, layer.options.className);
  7720. }
  7721. if (layer.options.interactive) {
  7722. L.DomUtil.addClass(path, 'leaflet-interactive');
  7723. }
  7724. this._updateStyle(layer);
  7725. this._layers[L.stamp(layer)] = layer;
  7726. },
  7727. _addPath: function (layer) {
  7728. this._rootGroup.appendChild(layer._path);
  7729. layer.addInteractiveTarget(layer._path);
  7730. },
  7731. _removePath: function (layer) {
  7732. L.DomUtil.remove(layer._path);
  7733. layer.removeInteractiveTarget(layer._path);
  7734. delete this._layers[L.stamp(layer)];
  7735. },
  7736. _updatePath: function (layer) {
  7737. layer._project();
  7738. layer._update();
  7739. },
  7740. _updateStyle: function (layer) {
  7741. var path = layer._path,
  7742. options = layer.options;
  7743. if (!path) { return; }
  7744. if (options.stroke) {
  7745. path.setAttribute('stroke', options.color);
  7746. path.setAttribute('stroke-opacity', options.opacity);
  7747. path.setAttribute('stroke-width', options.weight);
  7748. path.setAttribute('stroke-linecap', options.lineCap);
  7749. path.setAttribute('stroke-linejoin', options.lineJoin);
  7750. if (options.dashArray) {
  7751. path.setAttribute('stroke-dasharray', options.dashArray);
  7752. } else {
  7753. path.removeAttribute('stroke-dasharray');
  7754. }
  7755. if (options.dashOffset) {
  7756. path.setAttribute('stroke-dashoffset', options.dashOffset);
  7757. } else {
  7758. path.removeAttribute('stroke-dashoffset');
  7759. }
  7760. } else {
  7761. path.setAttribute('stroke', 'none');
  7762. }
  7763. if (options.fill) {
  7764. path.setAttribute('fill', options.fillColor || options.color);
  7765. path.setAttribute('fill-opacity', options.fillOpacity);
  7766. path.setAttribute('fill-rule', options.fillRule || 'evenodd');
  7767. } else {
  7768. path.setAttribute('fill', 'none');
  7769. }
  7770. },
  7771. _updatePoly: function (layer, closed) {
  7772. this._setPath(layer, L.SVG.pointsToPath(layer._parts, closed));
  7773. },
  7774. _updateCircle: function (layer) {
  7775. var p = layer._point,
  7776. r = layer._radius,
  7777. r2 = layer._radiusY || r,
  7778. arc = 'a' + r + ',' + r2 + ' 0 1,0 ';
  7779. // drawing a circle with two half-arcs
  7780. var d = layer._empty() ? 'M0 0' :
  7781. 'M' + (p.x - r) + ',' + p.y +
  7782. arc + (r * 2) + ',0 ' +
  7783. arc + (-r * 2) + ',0 ';
  7784. this._setPath(layer, d);
  7785. },
  7786. _setPath: function (layer, path) {
  7787. layer._path.setAttribute('d', path);
  7788. },
  7789. // SVG does not have the concept of zIndex so we resort to changing the DOM order of elements
  7790. _bringToFront: function (layer) {
  7791. L.DomUtil.toFront(layer._path);
  7792. },
  7793. _bringToBack: function (layer) {
  7794. L.DomUtil.toBack(layer._path);
  7795. }
  7796. });
  7797. // @namespace SVG; @section
  7798. // There are several static functions which can be called without instantiating L.SVG:
  7799. L.extend(L.SVG, {
  7800. // @function create(name: String): SVGElement
  7801. // Returns a instance of [SVGElement](https://developer.mozilla.org/docs/Web/API/SVGElement),
  7802. // corresponding to the class name passed. For example, using 'line' will return
  7803. // an instance of [SVGLineElement](https://developer.mozilla.org/docs/Web/API/SVGLineElement).
  7804. create: function (name) {
  7805. return document.createElementNS('http://www.w3.org/2000/svg', name);
  7806. },
  7807. // @function pointsToPath(rings: Point[], closed: Boolean): String
  7808. // Generates a SVG path string for multiple rings, with each ring turning
  7809. // into "M..L..L.." instructions
  7810. pointsToPath: function (rings, closed) {
  7811. var str = '',
  7812. i, j, len, len2, points, p;
  7813. for (i = 0, len = rings.length; i < len; i++) {
  7814. points = rings[i];
  7815. for (j = 0, len2 = points.length; j < len2; j++) {
  7816. p = points[j];
  7817. str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
  7818. }
  7819. // closes the ring for polygons; "x" is VML syntax
  7820. str += closed ? (L.Browser.svg ? 'z' : 'x') : '';
  7821. }
  7822. // SVG complains about empty path strings
  7823. return str || 'M0 0';
  7824. }
  7825. });
  7826. // @namespace Browser; @property svg: Boolean
  7827. // `true` when the browser supports [SVG](https://developer.mozilla.org/docs/Web/SVG).
  7828. L.Browser.svg = !!(document.createElementNS && L.SVG.create('svg').createSVGRect);
  7829. // @namespace SVG
  7830. // @factory L.svg(options?: Renderer options)
  7831. // Creates a SVG renderer with the given options.
  7832. L.svg = function (options) {
  7833. return L.Browser.svg || L.Browser.vml ? new L.SVG(options) : null;
  7834. };
  7835. /*
  7836. * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
  7837. */
  7838. /*
  7839. * @class SVG
  7840. *
  7841. * Although SVG is not available on IE7 and IE8, these browsers support [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language), and the SVG renderer will fall back to VML in this case.
  7842. *
  7843. * VML was deprecated in 2012, which means VML functionality exists only for backwards compatibility
  7844. * with old versions of Internet Explorer.
  7845. */
  7846. // @namespace Browser; @property vml: Boolean
  7847. // `true` if the browser supports [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language).
  7848. L.Browser.vml = !L.Browser.svg && (function () {
  7849. try {
  7850. var div = document.createElement('div');
  7851. div.innerHTML = '<v:shape adj="1"/>';
  7852. var shape = div.firstChild;
  7853. shape.style.behavior = 'url(#default#VML)';
  7854. return shape && (typeof shape.adj === 'object');
  7855. } catch (e) {
  7856. return false;
  7857. }
  7858. }());
  7859. // redefine some SVG methods to handle VML syntax which is similar but with some differences
  7860. L.SVG.include(!L.Browser.vml ? {} : {
  7861. _initContainer: function () {
  7862. this._container = L.DomUtil.create('div', 'leaflet-vml-container');
  7863. },
  7864. _update: function () {
  7865. if (this._map._animatingZoom) { return; }
  7866. L.Renderer.prototype._update.call(this);
  7867. this.fire('update');
  7868. },
  7869. _initPath: function (layer) {
  7870. var container = layer._container = L.SVG.create('shape');
  7871. L.DomUtil.addClass(container, 'leaflet-vml-shape ' + (this.options.className || ''));
  7872. container.coordsize = '1 1';
  7873. layer._path = L.SVG.create('path');
  7874. container.appendChild(layer._path);
  7875. this._updateStyle(layer);
  7876. },
  7877. _addPath: function (layer) {
  7878. var container = layer._container;
  7879. this._container.appendChild(container);
  7880. if (layer.options.interactive) {
  7881. layer.addInteractiveTarget(container);
  7882. }
  7883. },
  7884. _removePath: function (layer) {
  7885. var container = layer._container;
  7886. L.DomUtil.remove(container);
  7887. layer.removeInteractiveTarget(container);
  7888. },
  7889. _updateStyle: function (layer) {
  7890. var stroke = layer._stroke,
  7891. fill = layer._fill,
  7892. options = layer.options,
  7893. container = layer._container;
  7894. container.stroked = !!options.stroke;
  7895. container.filled = !!options.fill;
  7896. if (options.stroke) {
  7897. if (!stroke) {
  7898. stroke = layer._stroke = L.SVG.create('stroke');
  7899. }
  7900. container.appendChild(stroke);
  7901. stroke.weight = options.weight + 'px';
  7902. stroke.color = options.color;
  7903. stroke.opacity = options.opacity;
  7904. if (options.dashArray) {
  7905. stroke.dashStyle = L.Util.isArray(options.dashArray) ?
  7906. options.dashArray.join(' ') :
  7907. options.dashArray.replace(/( *, *)/g, ' ');
  7908. } else {
  7909. stroke.dashStyle = '';
  7910. }
  7911. stroke.endcap = options.lineCap.replace('butt', 'flat');
  7912. stroke.joinstyle = options.lineJoin;
  7913. } else if (stroke) {
  7914. container.removeChild(stroke);
  7915. layer._stroke = null;
  7916. }
  7917. if (options.fill) {
  7918. if (!fill) {
  7919. fill = layer._fill = L.SVG.create('fill');
  7920. }
  7921. container.appendChild(fill);
  7922. fill.color = options.fillColor || options.color;
  7923. fill.opacity = options.fillOpacity;
  7924. } else if (fill) {
  7925. container.removeChild(fill);
  7926. layer._fill = null;
  7927. }
  7928. },
  7929. _updateCircle: function (layer) {
  7930. var p = layer._point.round(),
  7931. r = Math.round(layer._radius),
  7932. r2 = Math.round(layer._radiusY || r);
  7933. this._setPath(layer, layer._empty() ? 'M0 0' :
  7934. 'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r2 + ' 0,' + (65535 * 360));
  7935. },
  7936. _setPath: function (layer, path) {
  7937. layer._path.v = path;
  7938. },
  7939. _bringToFront: function (layer) {
  7940. L.DomUtil.toFront(layer._container);
  7941. },
  7942. _bringToBack: function (layer) {
  7943. L.DomUtil.toBack(layer._container);
  7944. }
  7945. });
  7946. if (L.Browser.vml) {
  7947. L.SVG.create = (function () {
  7948. try {
  7949. document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');
  7950. return function (name) {
  7951. return document.createElement('<lvml:' + name + ' class="lvml">');
  7952. };
  7953. } catch (e) {
  7954. return function (name) {
  7955. return document.createElement('<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">');
  7956. };
  7957. }
  7958. })();
  7959. }
  7960. /*
  7961. * @class Canvas
  7962. * @inherits Renderer
  7963. * @aka L.Canvas
  7964. *
  7965. * Allows vector layers to be displayed with [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).
  7966. * Inherits `Renderer`.
  7967. *
  7968. * Due to [technical limitations](http://caniuse.com/#search=canvas), Canvas is not
  7969. * available in all web browsers, notably IE8, and overlapping geometries might
  7970. * not display properly in some edge cases.
  7971. *
  7972. * @example
  7973. *
  7974. * Use Canvas by default for all paths in the map:
  7975. *
  7976. * ```js
  7977. * var map = L.map('map', {
  7978. * renderer: L.canvas()
  7979. * });
  7980. * ```
  7981. *
  7982. * Use a Canvas renderer with extra padding for specific vector geometries:
  7983. *
  7984. * ```js
  7985. * var map = L.map('map');
  7986. * var myRenderer = L.canvas({ padding: 0.5 });
  7987. * var line = L.polyline( coordinates, { renderer: myRenderer } );
  7988. * var circle = L.circle( center, { renderer: myRenderer } );
  7989. * ```
  7990. */
  7991. L.Canvas = L.Renderer.extend({
  7992. onAdd: function () {
  7993. L.Renderer.prototype.onAdd.call(this);
  7994. // Redraw vectors since canvas is cleared upon removal,
  7995. // in case of removing the renderer itself from the map.
  7996. this._draw();
  7997. },
  7998. _initContainer: function () {
  7999. var container = this._container = document.createElement('canvas');
  8000. L.DomEvent
  8001. .on(container, 'mousemove', L.Util.throttle(this._onMouseMove, 32, this), this)
  8002. .on(container, 'click dblclick mousedown mouseup contextmenu', this._onClick, this)
  8003. .on(container, 'mouseout', this._handleMouseOut, this);
  8004. this._ctx = container.getContext('2d');
  8005. },
  8006. _updatePaths: function () {
  8007. var layer;
  8008. this._redrawBounds = null;
  8009. for (var id in this._layers) {
  8010. layer = this._layers[id];
  8011. layer._update();
  8012. }
  8013. this._redraw();
  8014. },
  8015. _update: function () {
  8016. if (this._map._animatingZoom && this._bounds) { return; }
  8017. this._drawnLayers = {};
  8018. L.Renderer.prototype._update.call(this);
  8019. var b = this._bounds,
  8020. container = this._container,
  8021. size = b.getSize(),
  8022. m = L.Browser.retina ? 2 : 1;
  8023. L.DomUtil.setPosition(container, b.min);
  8024. // set canvas size (also clearing it); use double size on retina
  8025. container.width = m * size.x;
  8026. container.height = m * size.y;
  8027. container.style.width = size.x + 'px';
  8028. container.style.height = size.y + 'px';
  8029. if (L.Browser.retina) {
  8030. this._ctx.scale(2, 2);
  8031. }
  8032. // translate so we use the same path coordinates after canvas element moves
  8033. this._ctx.translate(-b.min.x, -b.min.y);
  8034. // Tell paths to redraw themselves
  8035. this.fire('update');
  8036. },
  8037. _initPath: function (layer) {
  8038. this._updateDashArray(layer);
  8039. this._layers[L.stamp(layer)] = layer;
  8040. var order = layer._order = {
  8041. layer: layer,
  8042. prev: this._drawLast,
  8043. next: null
  8044. };
  8045. if (this._drawLast) { this._drawLast.next = order; }
  8046. this._drawLast = order;
  8047. this._drawFirst = this._drawFirst || this._drawLast;
  8048. },
  8049. _addPath: function (layer) {
  8050. this._requestRedraw(layer);
  8051. },
  8052. _removePath: function (layer) {
  8053. var order = layer._order;
  8054. var next = order.next;
  8055. var prev = order.prev;
  8056. if (next) {
  8057. next.prev = prev;
  8058. } else {
  8059. this._drawLast = prev;
  8060. }
  8061. if (prev) {
  8062. prev.next = next;
  8063. } else {
  8064. this._drawFirst = next;
  8065. }
  8066. delete layer._order;
  8067. delete this._layers[L.stamp(layer)];
  8068. this._requestRedraw(layer);
  8069. },
  8070. _updatePath: function (layer) {
  8071. // Redraw the union of the layer's old pixel
  8072. // bounds and the new pixel bounds.
  8073. this._extendRedrawBounds(layer);
  8074. layer._project();
  8075. layer._update();
  8076. // The redraw will extend the redraw bounds
  8077. // with the new pixel bounds.
  8078. this._requestRedraw(layer);
  8079. },
  8080. _updateStyle: function (layer) {
  8081. this._updateDashArray(layer);
  8082. this._requestRedraw(layer);
  8083. },
  8084. _updateDashArray: function (layer) {
  8085. if (layer.options.dashArray) {
  8086. var parts = layer.options.dashArray.split(','),
  8087. dashArray = [],
  8088. i;
  8089. for (i = 0; i < parts.length; i++) {
  8090. dashArray.push(Number(parts[i]));
  8091. }
  8092. layer.options._dashArray = dashArray;
  8093. }
  8094. },
  8095. _requestRedraw: function (layer) {
  8096. if (!this._map) { return; }
  8097. this._extendRedrawBounds(layer);
  8098. this._redrawRequest = this._redrawRequest || L.Util.requestAnimFrame(this._redraw, this);
  8099. },
  8100. _extendRedrawBounds: function (layer) {
  8101. var padding = (layer.options.weight || 0) + 1;
  8102. this._redrawBounds = this._redrawBounds || new L.Bounds();
  8103. this._redrawBounds.extend(layer._pxBounds.min.subtract([padding, padding]));
  8104. this._redrawBounds.extend(layer._pxBounds.max.add([padding, padding]));
  8105. },
  8106. _redraw: function () {
  8107. this._redrawRequest = null;
  8108. this._clear(); // clear layers in redraw bounds
  8109. this._draw(); // draw layers
  8110. this._redrawBounds = null;
  8111. },
  8112. _clear: function () {
  8113. var bounds = this._redrawBounds;
  8114. if (bounds) {
  8115. var size = bounds.getSize();
  8116. this._ctx.clearRect(bounds.min.x, bounds.min.y, size.x, size.y);
  8117. } else {
  8118. this._ctx.clearRect(0, 0, this._container.width, this._container.height);
  8119. }
  8120. },
  8121. _draw: function () {
  8122. var layer, bounds = this._redrawBounds;
  8123. this._ctx.save();
  8124. if (bounds) {
  8125. var size = bounds.getSize();
  8126. this._ctx.beginPath();
  8127. this._ctx.rect(bounds.min.x, bounds.min.y, size.x, size.y);
  8128. this._ctx.clip();
  8129. }
  8130. this._drawing = true;
  8131. for (var order = this._drawFirst; order; order = order.next) {
  8132. layer = order.layer;
  8133. if (!bounds || (layer._pxBounds && layer._pxBounds.intersects(bounds))) {
  8134. layer._updatePath();
  8135. }
  8136. }
  8137. this._drawing = false;
  8138. this._ctx.restore(); // Restore state before clipping.
  8139. },
  8140. _updatePoly: function (layer, closed) {
  8141. if (!this._drawing) { return; }
  8142. var i, j, len2, p,
  8143. parts = layer._parts,
  8144. len = parts.length,
  8145. ctx = this._ctx;
  8146. if (!len) { return; }
  8147. this._drawnLayers[layer._leaflet_id] = layer;
  8148. ctx.beginPath();
  8149. if (ctx.setLineDash) {
  8150. ctx.setLineDash(layer.options && layer.options._dashArray || []);
  8151. }
  8152. for (i = 0; i < len; i++) {
  8153. for (j = 0, len2 = parts[i].length; j < len2; j++) {
  8154. p = parts[i][j];
  8155. ctx[j ? 'lineTo' : 'moveTo'](p.x, p.y);
  8156. }
  8157. if (closed) {
  8158. ctx.closePath();
  8159. }
  8160. }
  8161. this._fillStroke(ctx, layer);
  8162. // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
  8163. },
  8164. _updateCircle: function (layer) {
  8165. if (!this._drawing || layer._empty()) { return; }
  8166. var p = layer._point,
  8167. ctx = this._ctx,
  8168. r = layer._radius,
  8169. s = (layer._radiusY || r) / r;
  8170. this._drawnLayers[layer._leaflet_id] = layer;
  8171. if (s !== 1) {
  8172. ctx.save();
  8173. ctx.scale(1, s);
  8174. }
  8175. ctx.beginPath();
  8176. ctx.arc(p.x, p.y / s, r, 0, Math.PI * 2, false);
  8177. if (s !== 1) {
  8178. ctx.restore();
  8179. }
  8180. this._fillStroke(ctx, layer);
  8181. },
  8182. _fillStroke: function (ctx, layer) {
  8183. var options = layer.options;
  8184. if (options.fill) {
  8185. ctx.globalAlpha = options.fillOpacity;
  8186. ctx.fillStyle = options.fillColor || options.color;
  8187. ctx.fill(options.fillRule || 'evenodd');
  8188. }
  8189. if (options.stroke && options.weight !== 0) {
  8190. ctx.globalAlpha = options.opacity;
  8191. ctx.lineWidth = options.weight;
  8192. ctx.strokeStyle = options.color;
  8193. ctx.lineCap = options.lineCap;
  8194. ctx.lineJoin = options.lineJoin;
  8195. ctx.stroke();
  8196. }
  8197. },
  8198. // Canvas obviously doesn't have mouse events for individual drawn objects,
  8199. // so we emulate that by calculating what's under the mouse on mousemove/click manually
  8200. _onClick: function (e) {
  8201. var point = this._map.mouseEventToLayerPoint(e), layer, clickedLayer;
  8202. for (var order = this._drawFirst; order; order = order.next) {
  8203. layer = order.layer;
  8204. if (layer.options.interactive && layer._containsPoint(point) && !this._map._draggableMoved(layer)) {
  8205. clickedLayer = layer;
  8206. }
  8207. }
  8208. if (clickedLayer) {
  8209. L.DomEvent._fakeStop(e);
  8210. this._fireEvent([clickedLayer], e);
  8211. }
  8212. },
  8213. _onMouseMove: function (e) {
  8214. if (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; }
  8215. var point = this._map.mouseEventToLayerPoint(e);
  8216. this._handleMouseHover(e, point);
  8217. },
  8218. _handleMouseOut: function (e) {
  8219. var layer = this._hoveredLayer;
  8220. if (layer) {
  8221. // if we're leaving the layer, fire mouseout
  8222. L.DomUtil.removeClass(this._container, 'leaflet-interactive');
  8223. this._fireEvent([layer], e, 'mouseout');
  8224. this._hoveredLayer = null;
  8225. }
  8226. },
  8227. _handleMouseHover: function (e, point) {
  8228. var layer, candidateHoveredLayer;
  8229. for (var order = this._drawFirst; order; order = order.next) {
  8230. layer = order.layer;
  8231. if (layer.options.interactive && layer._containsPoint(point)) {
  8232. candidateHoveredLayer = layer;
  8233. }
  8234. }
  8235. if (candidateHoveredLayer !== this._hoveredLayer) {
  8236. this._handleMouseOut(e);
  8237. if (candidateHoveredLayer) {
  8238. L.DomUtil.addClass(this._container, 'leaflet-interactive'); // change cursor
  8239. this._fireEvent([candidateHoveredLayer], e, 'mouseover');
  8240. this._hoveredLayer = candidateHoveredLayer;
  8241. }
  8242. }
  8243. if (this._hoveredLayer) {
  8244. this._fireEvent([this._hoveredLayer], e);
  8245. }
  8246. },
  8247. _fireEvent: function (layers, e, type) {
  8248. this._map._fireDOMEvent(e, type || e.type, layers);
  8249. },
  8250. _bringToFront: function (layer) {
  8251. var order = layer._order;
  8252. var next = order.next;
  8253. var prev = order.prev;
  8254. if (next) {
  8255. next.prev = prev;
  8256. } else {
  8257. // Already last
  8258. return;
  8259. }
  8260. if (prev) {
  8261. prev.next = next;
  8262. } else if (next) {
  8263. // Update first entry unless this is the
  8264. // signle entry
  8265. this._drawFirst = next;
  8266. }
  8267. order.prev = this._drawLast;
  8268. this._drawLast.next = order;
  8269. order.next = null;
  8270. this._drawLast = order;
  8271. this._requestRedraw(layer);
  8272. },
  8273. _bringToBack: function (layer) {
  8274. var order = layer._order;
  8275. var next = order.next;
  8276. var prev = order.prev;
  8277. if (prev) {
  8278. prev.next = next;
  8279. } else {
  8280. // Already first
  8281. return;
  8282. }
  8283. if (next) {
  8284. next.prev = prev;
  8285. } else if (prev) {
  8286. // Update last entry unless this is the
  8287. // signle entry
  8288. this._drawLast = prev;
  8289. }
  8290. order.prev = null;
  8291. order.next = this._drawFirst;
  8292. this._drawFirst.prev = order;
  8293. this._drawFirst = order;
  8294. this._requestRedraw(layer);
  8295. }
  8296. });
  8297. // @namespace Browser; @property canvas: Boolean
  8298. // `true` when the browser supports [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).
  8299. L.Browser.canvas = (function () {
  8300. return !!document.createElement('canvas').getContext;
  8301. }());
  8302. // @namespace Canvas
  8303. // @factory L.canvas(options?: Renderer options)
  8304. // Creates a Canvas renderer with the given options.
  8305. L.canvas = function (options) {
  8306. return L.Browser.canvas ? new L.Canvas(options) : null;
  8307. };
  8308. L.Polyline.prototype._containsPoint = function (p, closed) {
  8309. var i, j, k, len, len2, part,
  8310. w = this._clickTolerance();
  8311. if (!this._pxBounds.contains(p)) { return false; }
  8312. // hit detection for polylines
  8313. for (i = 0, len = this._parts.length; i < len; i++) {
  8314. part = this._parts[i];
  8315. for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
  8316. if (!closed && (j === 0)) { continue; }
  8317. if (L.LineUtil.pointToSegmentDistance(p, part[k], part[j]) <= w) {
  8318. return true;
  8319. }
  8320. }
  8321. }
  8322. return false;
  8323. };
  8324. L.Polygon.prototype._containsPoint = function (p) {
  8325. var inside = false,
  8326. part, p1, p2, i, j, k, len, len2;
  8327. if (!this._pxBounds.contains(p)) { return false; }
  8328. // ray casting algorithm for detecting if point is in polygon
  8329. for (i = 0, len = this._parts.length; i < len; i++) {
  8330. part = this._parts[i];
  8331. for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
  8332. p1 = part[j];
  8333. p2 = part[k];
  8334. if (((p1.y > p.y) !== (p2.y > p.y)) && (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {
  8335. inside = !inside;
  8336. }
  8337. }
  8338. }
  8339. // also check if it's on polygon stroke
  8340. return inside || L.Polyline.prototype._containsPoint.call(this, p, true);
  8341. };
  8342. L.CircleMarker.prototype._containsPoint = function (p) {
  8343. return p.distanceTo(this._point) <= this._radius + this._clickTolerance();
  8344. };
  8345. /*
  8346. * @class GeoJSON
  8347. * @aka L.GeoJSON
  8348. * @inherits FeatureGroup
  8349. *
  8350. * Represents a GeoJSON object or an array of GeoJSON objects. Allows you to parse
  8351. * GeoJSON data and display it on the map. Extends `FeatureGroup`.
  8352. *
  8353. * @example
  8354. *
  8355. * ```js
  8356. * L.geoJSON(data, {
  8357. * style: function (feature) {
  8358. * return {color: feature.properties.color};
  8359. * }
  8360. * }).bindPopup(function (layer) {
  8361. * return layer.feature.properties.description;
  8362. * }).addTo(map);
  8363. * ```
  8364. */
  8365. L.GeoJSON = L.FeatureGroup.extend({
  8366. /* @section
  8367. * @aka GeoJSON options
  8368. *
  8369. * @option pointToLayer: Function = *
  8370. * A `Function` defining how GeoJSON points spawn Leaflet layers. It is internally
  8371. * called when data is added, passing the GeoJSON point feature and its `LatLng`.
  8372. * The default is to spawn a default `Marker`:
  8373. * ```js
  8374. * function(geoJsonPoint, latlng) {
  8375. * return L.marker(latlng);
  8376. * }
  8377. * ```
  8378. *
  8379. * @option style: Function = *
  8380. * A `Function` defining the `Path options` for styling GeoJSON lines and polygons,
  8381. * called internally when data is added.
  8382. * The default value is to not override any defaults:
  8383. * ```js
  8384. * function (geoJsonFeature) {
  8385. * return {}
  8386. * }
  8387. * ```
  8388. *
  8389. * @option onEachFeature: Function = *
  8390. * A `Function` that will be called once for each created `Feature`, after it has
  8391. * been created and styled. Useful for attaching events and popups to features.
  8392. * The default is to do nothing with the newly created layers:
  8393. * ```js
  8394. * function (feature, layer) {}
  8395. * ```
  8396. *
  8397. * @option filter: Function = *
  8398. * A `Function` that will be used to decide whether to include a feature or not.
  8399. * The default is to include all features:
  8400. * ```js
  8401. * function (geoJsonFeature) {
  8402. * return true;
  8403. * }
  8404. * ```
  8405. * Note: dynamically changing the `filter` option will have effect only on newly
  8406. * added data. It will _not_ re-evaluate already included features.
  8407. *
  8408. * @option coordsToLatLng: Function = *
  8409. * A `Function` that will be used for converting GeoJSON coordinates to `LatLng`s.
  8410. * The default is the `coordsToLatLng` static method.
  8411. */
  8412. initialize: function (geojson, options) {
  8413. L.setOptions(this, options);
  8414. this._layers = {};
  8415. if (geojson) {
  8416. this.addData(geojson);
  8417. }
  8418. },
  8419. // @method addData( <GeoJSON> data ): this
  8420. // Adds a GeoJSON object to the layer.
  8421. addData: function (geojson) {
  8422. var features = L.Util.isArray(geojson) ? geojson : geojson.features,
  8423. i, len, feature;
  8424. if (features) {
  8425. for (i = 0, len = features.length; i < len; i++) {
  8426. // only add this if geometry or geometries are set and not null
  8427. feature = features[i];
  8428. if (feature.geometries || feature.geometry || feature.features || feature.coordinates) {
  8429. this.addData(feature);
  8430. }
  8431. }
  8432. return this;
  8433. }
  8434. var options = this.options;
  8435. if (options.filter && !options.filter(geojson)) { return this; }
  8436. var layer = L.GeoJSON.geometryToLayer(geojson, options);
  8437. if (!layer) {
  8438. return this;
  8439. }
  8440. layer.feature = L.GeoJSON.asFeature(geojson);
  8441. layer.defaultOptions = layer.options;
  8442. this.resetStyle(layer);
  8443. if (options.onEachFeature) {
  8444. options.onEachFeature(geojson, layer);
  8445. }
  8446. return this.addLayer(layer);
  8447. },
  8448. // @method resetStyle( <Path> layer ): this
  8449. // Resets the given vector layer's style to the original GeoJSON style, useful for resetting style after hover events.
  8450. resetStyle: function (layer) {
  8451. // reset any custom styles
  8452. layer.options = L.Util.extend({}, layer.defaultOptions);
  8453. this._setLayerStyle(layer, this.options.style);
  8454. return this;
  8455. },
  8456. // @method setStyle( <Function> style ): this
  8457. // Changes styles of GeoJSON vector layers with the given style function.
  8458. setStyle: function (style) {
  8459. return this.eachLayer(function (layer) {
  8460. this._setLayerStyle(layer, style);
  8461. }, this);
  8462. },
  8463. _setLayerStyle: function (layer, style) {
  8464. if (typeof style === 'function') {
  8465. style = style(layer.feature);
  8466. }
  8467. if (layer.setStyle) {
  8468. layer.setStyle(style);
  8469. }
  8470. }
  8471. });
  8472. // @section
  8473. // There are several static functions which can be called without instantiating L.GeoJSON:
  8474. L.extend(L.GeoJSON, {
  8475. // @function geometryToLayer(featureData: Object, options?: GeoJSON options): Layer
  8476. // Creates a `Layer` from a given GeoJSON feature. Can use a custom
  8477. // [`pointToLayer`](#geojson-pointtolayer) and/or [`coordsToLatLng`](#geojson-coordstolatlng)
  8478. // functions if provided as options.
  8479. geometryToLayer: function (geojson, options) {
  8480. var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,
  8481. coords = geometry ? geometry.coordinates : null,
  8482. layers = [],
  8483. pointToLayer = options && options.pointToLayer,
  8484. coordsToLatLng = options && options.coordsToLatLng || this.coordsToLatLng,
  8485. latlng, latlngs, i, len;
  8486. if (!coords && !geometry) {
  8487. return null;
  8488. }
  8489. switch (geometry.type) {
  8490. case 'Point':
  8491. latlng = coordsToLatLng(coords);
  8492. return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);
  8493. case 'MultiPoint':
  8494. for (i = 0, len = coords.length; i < len; i++) {
  8495. latlng = coordsToLatLng(coords[i]);
  8496. layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng));
  8497. }
  8498. return new L.FeatureGroup(layers);
  8499. case 'LineString':
  8500. case 'MultiLineString':
  8501. latlngs = this.coordsToLatLngs(coords, geometry.type === 'LineString' ? 0 : 1, coordsToLatLng);
  8502. return new L.Polyline(latlngs, options);
  8503. case 'Polygon':
  8504. case 'MultiPolygon':
  8505. latlngs = this.coordsToLatLngs(coords, geometry.type === 'Polygon' ? 1 : 2, coordsToLatLng);
  8506. return new L.Polygon(latlngs, options);
  8507. case 'GeometryCollection':
  8508. for (i = 0, len = geometry.geometries.length; i < len; i++) {
  8509. var layer = this.geometryToLayer({
  8510. geometry: geometry.geometries[i],
  8511. type: 'Feature',
  8512. properties: geojson.properties
  8513. }, options);
  8514. if (layer) {
  8515. layers.push(layer);
  8516. }
  8517. }
  8518. return new L.FeatureGroup(layers);
  8519. default:
  8520. throw new Error('Invalid GeoJSON object.');
  8521. }
  8522. },
  8523. // @function coordsToLatLng(coords: Array): LatLng
  8524. // Creates a `LatLng` object from an array of 2 numbers (longitude, latitude)
  8525. // or 3 numbers (longitude, latitude, altitude) used in GeoJSON for points.
  8526. coordsToLatLng: function (coords) {
  8527. return new L.LatLng(coords[1], coords[0], coords[2]);
  8528. },
  8529. // @function coordsToLatLngs(coords: Array, levelsDeep?: Number, coordsToLatLng?: Function): Array
  8530. // Creates a multidimensional array of `LatLng`s from a GeoJSON coordinates array.
  8531. // `levelsDeep` specifies the nesting level (0 is for an array of points, 1 for an array of arrays of points, etc., 0 by default).
  8532. // Can use a custom [`coordsToLatLng`](#geojson-coordstolatlng) function.
  8533. coordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) {
  8534. var latlngs = [];
  8535. for (var i = 0, len = coords.length, latlng; i < len; i++) {
  8536. latlng = levelsDeep ?
  8537. this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) :
  8538. (coordsToLatLng || this.coordsToLatLng)(coords[i]);
  8539. latlngs.push(latlng);
  8540. }
  8541. return latlngs;
  8542. },
  8543. // @function latLngToCoords(latlng: LatLng): Array
  8544. // Reverse of [`coordsToLatLng`](#geojson-coordstolatlng)
  8545. latLngToCoords: function (latlng) {
  8546. return latlng.alt !== undefined ?
  8547. [latlng.lng, latlng.lat, latlng.alt] :
  8548. [latlng.lng, latlng.lat];
  8549. },
  8550. // @function latLngsToCoords(latlngs: Array, levelsDeep?: Number, closed?: Boolean): Array
  8551. // Reverse of [`coordsToLatLngs`](#geojson-coordstolatlngs)
  8552. // `closed` determines whether the first point should be appended to the end of the array to close the feature, only used when `levelsDeep` is 0. False by default.
  8553. latLngsToCoords: function (latlngs, levelsDeep, closed) {
  8554. var coords = [];
  8555. for (var i = 0, len = latlngs.length; i < len; i++) {
  8556. coords.push(levelsDeep ?
  8557. L.GeoJSON.latLngsToCoords(latlngs[i], levelsDeep - 1, closed) :
  8558. L.GeoJSON.latLngToCoords(latlngs[i]));
  8559. }
  8560. if (!levelsDeep && closed) {
  8561. coords.push(coords[0]);
  8562. }
  8563. return coords;
  8564. },
  8565. getFeature: function (layer, newGeometry) {
  8566. return layer.feature ?
  8567. L.extend({}, layer.feature, {geometry: newGeometry}) :
  8568. L.GeoJSON.asFeature(newGeometry);
  8569. },
  8570. // @function asFeature(geojson: Object): Object
  8571. // Normalize GeoJSON geometries/features into GeoJSON features.
  8572. asFeature: function (geojson) {
  8573. if (geojson.type === 'Feature' || geojson.type === 'FeatureCollection') {
  8574. return geojson;
  8575. }
  8576. return {
  8577. type: 'Feature',
  8578. properties: {},
  8579. geometry: geojson
  8580. };
  8581. }
  8582. });
  8583. var PointToGeoJSON = {
  8584. toGeoJSON: function () {
  8585. return L.GeoJSON.getFeature(this, {
  8586. type: 'Point',
  8587. coordinates: L.GeoJSON.latLngToCoords(this.getLatLng())
  8588. });
  8589. }
  8590. };
  8591. // @namespace Marker
  8592. // @method toGeoJSON(): Object
  8593. // Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the marker (as a GeoJSON `Point` Feature).
  8594. L.Marker.include(PointToGeoJSON);
  8595. // @namespace CircleMarker
  8596. // @method toGeoJSON(): Object
  8597. // Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the circle marker (as a GeoJSON `Point` Feature).
  8598. L.Circle.include(PointToGeoJSON);
  8599. L.CircleMarker.include(PointToGeoJSON);
  8600. // @namespace Polyline
  8601. // @method toGeoJSON(): Object
  8602. // Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polyline (as a GeoJSON `LineString` or `MultiLineString` Feature).
  8603. L.Polyline.prototype.toGeoJSON = function () {
  8604. var multi = !L.Polyline._flat(this._latlngs);
  8605. var coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 1 : 0);
  8606. return L.GeoJSON.getFeature(this, {
  8607. type: (multi ? 'Multi' : '') + 'LineString',
  8608. coordinates: coords
  8609. });
  8610. };
  8611. // @namespace Polygon
  8612. // @method toGeoJSON(): Object
  8613. // Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polygon (as a GeoJSON `Polygon` or `MultiPolygon` Feature).
  8614. L.Polygon.prototype.toGeoJSON = function () {
  8615. var holes = !L.Polyline._flat(this._latlngs),
  8616. multi = holes && !L.Polyline._flat(this._latlngs[0]);
  8617. var coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true);
  8618. if (!holes) {
  8619. coords = [coords];
  8620. }
  8621. return L.GeoJSON.getFeature(this, {
  8622. type: (multi ? 'Multi' : '') + 'Polygon',
  8623. coordinates: coords
  8624. });
  8625. };
  8626. // @namespace LayerGroup
  8627. L.LayerGroup.include({
  8628. toMultiPoint: function () {
  8629. var coords = [];
  8630. this.eachLayer(function (layer) {
  8631. coords.push(layer.toGeoJSON().geometry.coordinates);
  8632. });
  8633. return L.GeoJSON.getFeature(this, {
  8634. type: 'MultiPoint',
  8635. coordinates: coords
  8636. });
  8637. },
  8638. // @method toGeoJSON(): Object
  8639. // Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the layer group (as a GeoJSON `GeometryCollection`).
  8640. toGeoJSON: function () {
  8641. var type = this.feature && this.feature.geometry && this.feature.geometry.type;
  8642. if (type === 'MultiPoint') {
  8643. return this.toMultiPoint();
  8644. }
  8645. var isGeometryCollection = type === 'GeometryCollection',
  8646. jsons = [];
  8647. this.eachLayer(function (layer) {
  8648. if (layer.toGeoJSON) {
  8649. var json = layer.toGeoJSON();
  8650. jsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));
  8651. }
  8652. });
  8653. if (isGeometryCollection) {
  8654. return L.GeoJSON.getFeature(this, {
  8655. geometries: jsons,
  8656. type: 'GeometryCollection'
  8657. });
  8658. }
  8659. return {
  8660. type: 'FeatureCollection',
  8661. features: jsons
  8662. };
  8663. }
  8664. });
  8665. // @namespace GeoJSON
  8666. // @factory L.geoJSON(geojson?: Object, options?: GeoJSON options)
  8667. // Creates a GeoJSON layer. Optionally accepts an object in
  8668. // [GeoJSON format](http://geojson.org/geojson-spec.html) to display on the map
  8669. // (you can alternatively add it later with `addData` method) and an `options` object.
  8670. L.geoJSON = function (geojson, options) {
  8671. return new L.GeoJSON(geojson, options);
  8672. };
  8673. // Backward compatibility.
  8674. L.geoJson = L.geoJSON;
  8675. /*
  8676. * @class Draggable
  8677. * @aka L.Draggable
  8678. * @inherits Evented
  8679. *
  8680. * A class for making DOM elements draggable (including touch support).
  8681. * Used internally for map and marker dragging. Only works for elements
  8682. * that were positioned with [`L.DomUtil.setPosition`](#domutil-setposition).
  8683. *
  8684. * @example
  8685. * ```js
  8686. * var draggable = new L.Draggable(elementToDrag);
  8687. * draggable.enable();
  8688. * ```
  8689. */
  8690. L.Draggable = L.Evented.extend({
  8691. options: {
  8692. // @option clickTolerance: Number = 3
  8693. // The max number of pixels a user can shift the mouse pointer during a click
  8694. // for it to be considered a valid click (as opposed to a mouse drag).
  8695. clickTolerance: 3
  8696. },
  8697. statics: {
  8698. START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'],
  8699. END: {
  8700. mousedown: 'mouseup',
  8701. touchstart: 'touchend',
  8702. pointerdown: 'touchend',
  8703. MSPointerDown: 'touchend'
  8704. },
  8705. MOVE: {
  8706. mousedown: 'mousemove',
  8707. touchstart: 'touchmove',
  8708. pointerdown: 'touchmove',
  8709. MSPointerDown: 'touchmove'
  8710. }
  8711. },
  8712. // @constructor L.Draggable(el: HTMLElement, dragHandle?: HTMLElement, preventOutline: Boolean)
  8713. // Creates a `Draggable` object for moving `el` when you start dragging the `dragHandle` element (equals `el` itself by default).
  8714. initialize: function (element, dragStartTarget, preventOutline) {
  8715. this._element = element;
  8716. this._dragStartTarget = dragStartTarget || element;
  8717. this._preventOutline = preventOutline;
  8718. },
  8719. // @method enable()
  8720. // Enables the dragging ability
  8721. enable: function () {
  8722. if (this._enabled) { return; }
  8723. L.DomEvent.on(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);
  8724. this._enabled = true;
  8725. },
  8726. // @method disable()
  8727. // Disables the dragging ability
  8728. disable: function () {
  8729. if (!this._enabled) { return; }
  8730. // If we're currently dragging this draggable,
  8731. // disabling it counts as first ending the drag.
  8732. if (L.Draggable._dragging === this) {
  8733. this.finishDrag();
  8734. }
  8735. L.DomEvent.off(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);
  8736. this._enabled = false;
  8737. this._moved = false;
  8738. },
  8739. _onDown: function (e) {
  8740. // Ignore simulated events, since we handle both touch and
  8741. // mouse explicitly; otherwise we risk getting duplicates of
  8742. // touch events, see #4315.
  8743. // Also ignore the event if disabled; this happens in IE11
  8744. // under some circumstances, see #3666.
  8745. if (e._simulated || !this._enabled) { return; }
  8746. this._moved = false;
  8747. if (L.DomUtil.hasClass(this._element, 'leaflet-zoom-anim')) { return; }
  8748. if (L.Draggable._dragging || e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }
  8749. L.Draggable._dragging = this; // Prevent dragging multiple objects at once.
  8750. if (this._preventOutline) {
  8751. L.DomUtil.preventOutline(this._element);
  8752. }
  8753. L.DomUtil.disableImageDrag();
  8754. L.DomUtil.disableTextSelection();
  8755. if (this._moving) { return; }
  8756. // @event down: Event
  8757. // Fired when a drag is about to start.
  8758. this.fire('down');
  8759. var first = e.touches ? e.touches[0] : e;
  8760. this._startPoint = new L.Point(first.clientX, first.clientY);
  8761. L.DomEvent
  8762. .on(document, L.Draggable.MOVE[e.type], this._onMove, this)
  8763. .on(document, L.Draggable.END[e.type], this._onUp, this);
  8764. },
  8765. _onMove: function (e) {
  8766. // Ignore simulated events, since we handle both touch and
  8767. // mouse explicitly; otherwise we risk getting duplicates of
  8768. // touch events, see #4315.
  8769. // Also ignore the event if disabled; this happens in IE11
  8770. // under some circumstances, see #3666.
  8771. if (e._simulated || !this._enabled) { return; }
  8772. if (e.touches && e.touches.length > 1) {
  8773. this._moved = true;
  8774. return;
  8775. }
  8776. var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
  8777. newPoint = new L.Point(first.clientX, first.clientY),
  8778. offset = newPoint.subtract(this._startPoint);
  8779. if (!offset.x && !offset.y) { return; }
  8780. if (Math.abs(offset.x) + Math.abs(offset.y) < this.options.clickTolerance) { return; }
  8781. L.DomEvent.preventDefault(e);
  8782. if (!this._moved) {
  8783. // @event dragstart: Event
  8784. // Fired when a drag starts
  8785. this.fire('dragstart');
  8786. this._moved = true;
  8787. this._startPos = L.DomUtil.getPosition(this._element).subtract(offset);
  8788. L.DomUtil.addClass(document.body, 'leaflet-dragging');
  8789. this._lastTarget = e.target || e.srcElement;
  8790. // IE and Edge do not give the <use> element, so fetch it
  8791. // if necessary
  8792. if ((window.SVGElementInstance) && (this._lastTarget instanceof SVGElementInstance)) {
  8793. this._lastTarget = this._lastTarget.correspondingUseElement;
  8794. }
  8795. L.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target');
  8796. }
  8797. this._newPos = this._startPos.add(offset);
  8798. this._moving = true;
  8799. L.Util.cancelAnimFrame(this._animRequest);
  8800. this._lastEvent = e;
  8801. this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true);
  8802. },
  8803. _updatePosition: function () {
  8804. var e = {originalEvent: this._lastEvent};
  8805. // @event predrag: Event
  8806. // Fired continuously during dragging *before* each corresponding
  8807. // update of the element's position.
  8808. this.fire('predrag', e);
  8809. L.DomUtil.setPosition(this._element, this._newPos);
  8810. // @event drag: Event
  8811. // Fired continuously during dragging.
  8812. this.fire('drag', e);
  8813. },
  8814. _onUp: function (e) {
  8815. // Ignore simulated events, since we handle both touch and
  8816. // mouse explicitly; otherwise we risk getting duplicates of
  8817. // touch events, see #4315.
  8818. // Also ignore the event if disabled; this happens in IE11
  8819. // under some circumstances, see #3666.
  8820. if (e._simulated || !this._enabled) { return; }
  8821. this.finishDrag();
  8822. },
  8823. finishDrag: function () {
  8824. L.DomUtil.removeClass(document.body, 'leaflet-dragging');
  8825. if (this._lastTarget) {
  8826. L.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target');
  8827. this._lastTarget = null;
  8828. }
  8829. for (var i in L.Draggable.MOVE) {
  8830. L.DomEvent
  8831. .off(document, L.Draggable.MOVE[i], this._onMove, this)
  8832. .off(document, L.Draggable.END[i], this._onUp, this);
  8833. }
  8834. L.DomUtil.enableImageDrag();
  8835. L.DomUtil.enableTextSelection();
  8836. if (this._moved && this._moving) {
  8837. // ensure drag is not fired after dragend
  8838. L.Util.cancelAnimFrame(this._animRequest);
  8839. // @event dragend: DragEndEvent
  8840. // Fired when the drag ends.
  8841. this.fire('dragend', {
  8842. distance: this._newPos.distanceTo(this._startPos)
  8843. });
  8844. }
  8845. this._moving = false;
  8846. L.Draggable._dragging = false;
  8847. }
  8848. });
  8849. /*
  8850. L.Handler is a base class for handler classes that are used internally to inject
  8851. interaction features like dragging to classes like Map and Marker.
  8852. */
  8853. // @class Handler
  8854. // @aka L.Handler
  8855. // Abstract class for map interaction handlers
  8856. L.Handler = L.Class.extend({
  8857. initialize: function (map) {
  8858. this._map = map;
  8859. },
  8860. // @method enable(): this
  8861. // Enables the handler
  8862. enable: function () {
  8863. if (this._enabled) { return this; }
  8864. this._enabled = true;
  8865. this.addHooks();
  8866. return this;
  8867. },
  8868. // @method disable(): this
  8869. // Disables the handler
  8870. disable: function () {
  8871. if (!this._enabled) { return this; }
  8872. this._enabled = false;
  8873. this.removeHooks();
  8874. return this;
  8875. },
  8876. // @method enabled(): Boolean
  8877. // Returns `true` if the handler is enabled
  8878. enabled: function () {
  8879. return !!this._enabled;
  8880. }
  8881. // @section Extension methods
  8882. // Classes inheriting from `Handler` must implement the two following methods:
  8883. // @method addHooks()
  8884. // Called when the handler is enabled, should add event hooks.
  8885. // @method removeHooks()
  8886. // Called when the handler is disabled, should remove the event hooks added previously.
  8887. });
  8888. /*
  8889. * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.
  8890. */
  8891. // @namespace Map
  8892. // @section Interaction Options
  8893. L.Map.mergeOptions({
  8894. // @option dragging: Boolean = true
  8895. // Whether the map be draggable with mouse/touch or not.
  8896. dragging: true,
  8897. // @section Panning Inertia Options
  8898. // @option inertia: Boolean = *
  8899. // If enabled, panning of the map will have an inertia effect where
  8900. // the map builds momentum while dragging and continues moving in
  8901. // the same direction for some time. Feels especially nice on touch
  8902. // devices. Enabled by default unless running on old Android devices.
  8903. inertia: !L.Browser.android23,
  8904. // @option inertiaDeceleration: Number = 3000
  8905. // The rate with which the inertial movement slows down, in pixels/second².
  8906. inertiaDeceleration: 3400, // px/s^2
  8907. // @option inertiaMaxSpeed: Number = Infinity
  8908. // Max speed of the inertial movement, in pixels/second.
  8909. inertiaMaxSpeed: Infinity, // px/s
  8910. // @option easeLinearity: Number = 0.2
  8911. easeLinearity: 0.2,
  8912. // TODO refactor, move to CRS
  8913. // @option worldCopyJump: Boolean = false
  8914. // With this option enabled, the map tracks when you pan to another "copy"
  8915. // of the world and seamlessly jumps to the original one so that all overlays
  8916. // like markers and vector layers are still visible.
  8917. worldCopyJump: false,
  8918. // @option maxBoundsViscosity: Number = 0.0
  8919. // If `maxBounds` is set, this option will control how solid the bounds
  8920. // are when dragging the map around. The default value of `0.0` allows the
  8921. // user to drag outside the bounds at normal speed, higher values will
  8922. // slow down map dragging outside bounds, and `1.0` makes the bounds fully
  8923. // solid, preventing the user from dragging outside the bounds.
  8924. maxBoundsViscosity: 0.0
  8925. });
  8926. L.Map.Drag = L.Handler.extend({
  8927. addHooks: function () {
  8928. if (!this._draggable) {
  8929. var map = this._map;
  8930. this._draggable = new L.Draggable(map._mapPane, map._container);
  8931. this._draggable.on({
  8932. down: this._onDown,
  8933. dragstart: this._onDragStart,
  8934. drag: this._onDrag,
  8935. dragend: this._onDragEnd
  8936. }, this);
  8937. this._draggable.on('predrag', this._onPreDragLimit, this);
  8938. if (map.options.worldCopyJump) {
  8939. this._draggable.on('predrag', this._onPreDragWrap, this);
  8940. map.on('zoomend', this._onZoomEnd, this);
  8941. map.whenReady(this._onZoomEnd, this);
  8942. }
  8943. }
  8944. L.DomUtil.addClass(this._map._container, 'leaflet-grab leaflet-touch-drag');
  8945. this._draggable.enable();
  8946. this._positions = [];
  8947. this._times = [];
  8948. },
  8949. removeHooks: function () {
  8950. L.DomUtil.removeClass(this._map._container, 'leaflet-grab');
  8951. L.DomUtil.removeClass(this._map._container, 'leaflet-touch-drag');
  8952. this._draggable.disable();
  8953. },
  8954. moved: function () {
  8955. return this._draggable && this._draggable._moved;
  8956. },
  8957. moving: function () {
  8958. return this._draggable && this._draggable._moving;
  8959. },
  8960. _onDown: function () {
  8961. this._map._stop();
  8962. },
  8963. _onDragStart: function () {
  8964. var map = this._map;
  8965. if (this._map.options.maxBounds && this._map.options.maxBoundsViscosity) {
  8966. var bounds = L.latLngBounds(this._map.options.maxBounds);
  8967. this._offsetLimit = L.bounds(
  8968. this._map.latLngToContainerPoint(bounds.getNorthWest()).multiplyBy(-1),
  8969. this._map.latLngToContainerPoint(bounds.getSouthEast()).multiplyBy(-1)
  8970. .add(this._map.getSize()));
  8971. this._viscosity = Math.min(1.0, Math.max(0.0, this._map.options.maxBoundsViscosity));
  8972. } else {
  8973. this._offsetLimit = null;
  8974. }
  8975. map
  8976. .fire('movestart')
  8977. .fire('dragstart');
  8978. if (map.options.inertia) {
  8979. this._positions = [];
  8980. this._times = [];
  8981. }
  8982. },
  8983. _onDrag: function (e) {
  8984. if (this._map.options.inertia) {
  8985. var time = this._lastTime = +new Date(),
  8986. pos = this._lastPos = this._draggable._absPos || this._draggable._newPos;
  8987. this._positions.push(pos);
  8988. this._times.push(time);
  8989. if (time - this._times[0] > 50) {
  8990. this._positions.shift();
  8991. this._times.shift();
  8992. }
  8993. }
  8994. this._map
  8995. .fire('move', e)
  8996. .fire('drag', e);
  8997. },
  8998. _onZoomEnd: function () {
  8999. var pxCenter = this._map.getSize().divideBy(2),
  9000. pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);
  9001. this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
  9002. this._worldWidth = this._map.getPixelWorldBounds().getSize().x;
  9003. },
  9004. _viscousLimit: function (value, threshold) {
  9005. return value - (value - threshold) * this._viscosity;
  9006. },
  9007. _onPreDragLimit: function () {
  9008. if (!this._viscosity || !this._offsetLimit) { return; }
  9009. var offset = this._draggable._newPos.subtract(this._draggable._startPos);
  9010. var limit = this._offsetLimit;
  9011. if (offset.x < limit.min.x) { offset.x = this._viscousLimit(offset.x, limit.min.x); }
  9012. if (offset.y < limit.min.y) { offset.y = this._viscousLimit(offset.y, limit.min.y); }
  9013. if (offset.x > limit.max.x) { offset.x = this._viscousLimit(offset.x, limit.max.x); }
  9014. if (offset.y > limit.max.y) { offset.y = this._viscousLimit(offset.y, limit.max.y); }
  9015. this._draggable._newPos = this._draggable._startPos.add(offset);
  9016. },
  9017. _onPreDragWrap: function () {
  9018. // TODO refactor to be able to adjust map pane position after zoom
  9019. var worldWidth = this._worldWidth,
  9020. halfWidth = Math.round(worldWidth / 2),
  9021. dx = this._initialWorldOffset,
  9022. x = this._draggable._newPos.x,
  9023. newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx,
  9024. newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx,
  9025. newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2;
  9026. this._draggable._absPos = this._draggable._newPos.clone();
  9027. this._draggable._newPos.x = newX;
  9028. },
  9029. _onDragEnd: function (e) {
  9030. var map = this._map,
  9031. options = map.options,
  9032. noInertia = !options.inertia || this._times.length < 2;
  9033. map.fire('dragend', e);
  9034. if (noInertia) {
  9035. map.fire('moveend');
  9036. } else {
  9037. var direction = this._lastPos.subtract(this._positions[0]),
  9038. duration = (this._lastTime - this._times[0]) / 1000,
  9039. ease = options.easeLinearity,
  9040. speedVector = direction.multiplyBy(ease / duration),
  9041. speed = speedVector.distanceTo([0, 0]),
  9042. limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
  9043. limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),
  9044. decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),
  9045. offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();
  9046. if (!offset.x && !offset.y) {
  9047. map.fire('moveend');
  9048. } else {
  9049. offset = map._limitOffset(offset, map.options.maxBounds);
  9050. L.Util.requestAnimFrame(function () {
  9051. map.panBy(offset, {
  9052. duration: decelerationDuration,
  9053. easeLinearity: ease,
  9054. noMoveStart: true,
  9055. animate: true
  9056. });
  9057. });
  9058. }
  9059. }
  9060. }
  9061. });
  9062. // @section Handlers
  9063. // @property dragging: Handler
  9064. // Map dragging handler (by both mouse and touch).
  9065. L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);
  9066. /*
  9067. * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.
  9068. */
  9069. // @namespace Map
  9070. // @section Interaction Options
  9071. L.Map.mergeOptions({
  9072. // @option doubleClickZoom: Boolean|String = true
  9073. // Whether the map can be zoomed in by double clicking on it and
  9074. // zoomed out by double clicking while holding shift. If passed
  9075. // `'center'`, double-click zoom will zoom to the center of the
  9076. // view regardless of where the mouse was.
  9077. doubleClickZoom: true
  9078. });
  9079. L.Map.DoubleClickZoom = L.Handler.extend({
  9080. addHooks: function () {
  9081. this._map.on('dblclick', this._onDoubleClick, this);
  9082. },
  9083. removeHooks: function () {
  9084. this._map.off('dblclick', this._onDoubleClick, this);
  9085. },
  9086. _onDoubleClick: function (e) {
  9087. var map = this._map,
  9088. oldZoom = map.getZoom(),
  9089. delta = map.options.zoomDelta,
  9090. zoom = e.originalEvent.shiftKey ? oldZoom - delta : oldZoom + delta;
  9091. if (map.options.doubleClickZoom === 'center') {
  9092. map.setZoom(zoom);
  9093. } else {
  9094. map.setZoomAround(e.containerPoint, zoom);
  9095. }
  9096. }
  9097. });
  9098. // @section Handlers
  9099. //
  9100. // Map properties include interaction handlers that allow you to control
  9101. // interaction behavior in runtime, enabling or disabling certain features such
  9102. // as dragging or touch zoom (see `Handler` methods). For example:
  9103. //
  9104. // ```js
  9105. // map.doubleClickZoom.disable();
  9106. // ```
  9107. //
  9108. // @property doubleClickZoom: Handler
  9109. // Double click zoom handler.
  9110. L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);
  9111. /*
  9112. * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map.
  9113. */
  9114. // @namespace Map
  9115. // @section Interaction Options
  9116. L.Map.mergeOptions({
  9117. // @section Mousewheel options
  9118. // @option scrollWheelZoom: Boolean|String = true
  9119. // Whether the map can be zoomed by using the mouse wheel. If passed `'center'`,
  9120. // it will zoom to the center of the view regardless of where the mouse was.
  9121. scrollWheelZoom: true,
  9122. // @option wheelDebounceTime: Number = 40
  9123. // Limits the rate at which a wheel can fire (in milliseconds). By default
  9124. // user can't zoom via wheel more often than once per 40 ms.
  9125. wheelDebounceTime: 40,
  9126. // @option wheelPxPerZoomLevel: Number = 60
  9127. // How many scroll pixels (as reported by [L.DomEvent.getWheelDelta](#domevent-getwheeldelta))
  9128. // mean a change of one full zoom level. Smaller values will make wheel-zooming
  9129. // faster (and vice versa).
  9130. wheelPxPerZoomLevel: 60
  9131. });
  9132. L.Map.ScrollWheelZoom = L.Handler.extend({
  9133. addHooks: function () {
  9134. L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this);
  9135. this._delta = 0;
  9136. },
  9137. removeHooks: function () {
  9138. L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll, this);
  9139. },
  9140. _onWheelScroll: function (e) {
  9141. var delta = L.DomEvent.getWheelDelta(e);
  9142. var debounce = this._map.options.wheelDebounceTime;
  9143. this._delta += delta;
  9144. this._lastMousePos = this._map.mouseEventToContainerPoint(e);
  9145. if (!this._startTime) {
  9146. this._startTime = +new Date();
  9147. }
  9148. var left = Math.max(debounce - (+new Date() - this._startTime), 0);
  9149. clearTimeout(this._timer);
  9150. this._timer = setTimeout(L.bind(this._performZoom, this), left);
  9151. L.DomEvent.stop(e);
  9152. },
  9153. _performZoom: function () {
  9154. var map = this._map,
  9155. zoom = map.getZoom(),
  9156. snap = this._map.options.zoomSnap || 0;
  9157. map._stop(); // stop panning and fly animations if any
  9158. // map the delta with a sigmoid function to -4..4 range leaning on -1..1
  9159. var d2 = this._delta / (this._map.options.wheelPxPerZoomLevel * 4),
  9160. d3 = 4 * Math.log(2 / (1 + Math.exp(-Math.abs(d2)))) / Math.LN2,
  9161. d4 = snap ? Math.ceil(d3 / snap) * snap : d3,
  9162. delta = map._limitZoom(zoom + (this._delta > 0 ? d4 : -d4)) - zoom;
  9163. this._delta = 0;
  9164. this._startTime = null;
  9165. if (!delta) { return; }
  9166. if (map.options.scrollWheelZoom === 'center') {
  9167. map.setZoom(zoom + delta);
  9168. } else {
  9169. map.setZoomAround(this._lastMousePos, zoom + delta);
  9170. }
  9171. }
  9172. });
  9173. // @section Handlers
  9174. // @property scrollWheelZoom: Handler
  9175. // Scroll wheel zoom handler.
  9176. L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);
  9177. /*
  9178. * Extends the event handling code with double tap support for mobile browsers.
  9179. */
  9180. L.extend(L.DomEvent, {
  9181. _touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart',
  9182. _touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend',
  9183. // inspired by Zepto touch code by Thomas Fuchs
  9184. addDoubleTapListener: function (obj, handler, id) {
  9185. var last, touch,
  9186. doubleTap = false,
  9187. delay = 250;
  9188. function onTouchStart(e) {
  9189. var count;
  9190. if (L.Browser.pointer) {
  9191. count = L.DomEvent._pointersCount;
  9192. } else {
  9193. count = e.touches.length;
  9194. }
  9195. if (count > 1) { return; }
  9196. var now = Date.now(),
  9197. delta = now - (last || now);
  9198. touch = e.touches ? e.touches[0] : e;
  9199. doubleTap = (delta > 0 && delta <= delay);
  9200. last = now;
  9201. }
  9202. function onTouchEnd() {
  9203. if (doubleTap && !touch.cancelBubble) {
  9204. if (L.Browser.pointer) {
  9205. // work around .type being readonly with MSPointer* events
  9206. var newTouch = {},
  9207. prop, i;
  9208. for (i in touch) {
  9209. prop = touch[i];
  9210. newTouch[i] = prop && prop.bind ? prop.bind(touch) : prop;
  9211. }
  9212. touch = newTouch;
  9213. }
  9214. touch.type = 'dblclick';
  9215. handler(touch);
  9216. last = null;
  9217. }
  9218. }
  9219. var pre = '_leaflet_',
  9220. touchstart = this._touchstart,
  9221. touchend = this._touchend;
  9222. obj[pre + touchstart + id] = onTouchStart;
  9223. obj[pre + touchend + id] = onTouchEnd;
  9224. obj[pre + 'dblclick' + id] = handler;
  9225. obj.addEventListener(touchstart, onTouchStart, false);
  9226. obj.addEventListener(touchend, onTouchEnd, false);
  9227. // On some platforms (notably, chrome on win10 + touchscreen + mouse),
  9228. // the browser doesn't fire touchend/pointerup events but does fire
  9229. // native dblclicks. See #4127.
  9230. if (!L.Browser.edge) {
  9231. obj.addEventListener('dblclick', handler, false);
  9232. }
  9233. return this;
  9234. },
  9235. removeDoubleTapListener: function (obj, id) {
  9236. var pre = '_leaflet_',
  9237. touchstart = obj[pre + this._touchstart + id],
  9238. touchend = obj[pre + this._touchend + id],
  9239. dblclick = obj[pre + 'dblclick' + id];
  9240. obj.removeEventListener(this._touchstart, touchstart, false);
  9241. obj.removeEventListener(this._touchend, touchend, false);
  9242. if (!L.Browser.edge) {
  9243. obj.removeEventListener('dblclick', dblclick, false);
  9244. }
  9245. return this;
  9246. }
  9247. });
  9248. /*
  9249. * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.
  9250. */
  9251. L.extend(L.DomEvent, {
  9252. POINTER_DOWN: L.Browser.msPointer ? 'MSPointerDown' : 'pointerdown',
  9253. POINTER_MOVE: L.Browser.msPointer ? 'MSPointerMove' : 'pointermove',
  9254. POINTER_UP: L.Browser.msPointer ? 'MSPointerUp' : 'pointerup',
  9255. POINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel',
  9256. TAG_WHITE_LIST: ['INPUT', 'SELECT', 'OPTION'],
  9257. _pointers: {},
  9258. _pointersCount: 0,
  9259. // Provides a touch events wrapper for (ms)pointer events.
  9260. // ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890
  9261. addPointerListener: function (obj, type, handler, id) {
  9262. if (type === 'touchstart') {
  9263. this._addPointerStart(obj, handler, id);
  9264. } else if (type === 'touchmove') {
  9265. this._addPointerMove(obj, handler, id);
  9266. } else if (type === 'touchend') {
  9267. this._addPointerEnd(obj, handler, id);
  9268. }
  9269. return this;
  9270. },
  9271. removePointerListener: function (obj, type, id) {
  9272. var handler = obj['_leaflet_' + type + id];
  9273. if (type === 'touchstart') {
  9274. obj.removeEventListener(this.POINTER_DOWN, handler, false);
  9275. } else if (type === 'touchmove') {
  9276. obj.removeEventListener(this.POINTER_MOVE, handler, false);
  9277. } else if (type === 'touchend') {
  9278. obj.removeEventListener(this.POINTER_UP, handler, false);
  9279. obj.removeEventListener(this.POINTER_CANCEL, handler, false);
  9280. }
  9281. return this;
  9282. },
  9283. _addPointerStart: function (obj, handler, id) {
  9284. var onDown = L.bind(function (e) {
  9285. if (e.pointerType !== 'mouse' && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) {
  9286. // In IE11, some touch events needs to fire for form controls, or
  9287. // the controls will stop working. We keep a whitelist of tag names that
  9288. // need these events. For other target tags, we prevent default on the event.
  9289. if (this.TAG_WHITE_LIST.indexOf(e.target.tagName) < 0) {
  9290. L.DomEvent.preventDefault(e);
  9291. } else {
  9292. return;
  9293. }
  9294. }
  9295. this._handlePointer(e, handler);
  9296. }, this);
  9297. obj['_leaflet_touchstart' + id] = onDown;
  9298. obj.addEventListener(this.POINTER_DOWN, onDown, false);
  9299. // need to keep track of what pointers and how many are active to provide e.touches emulation
  9300. if (!this._pointerDocListener) {
  9301. var pointerUp = L.bind(this._globalPointerUp, this);
  9302. // we listen documentElement as any drags that end by moving the touch off the screen get fired there
  9303. document.documentElement.addEventListener(this.POINTER_DOWN, L.bind(this._globalPointerDown, this), true);
  9304. document.documentElement.addEventListener(this.POINTER_MOVE, L.bind(this._globalPointerMove, this), true);
  9305. document.documentElement.addEventListener(this.POINTER_UP, pointerUp, true);
  9306. document.documentElement.addEventListener(this.POINTER_CANCEL, pointerUp, true);
  9307. this._pointerDocListener = true;
  9308. }
  9309. },
  9310. _globalPointerDown: function (e) {
  9311. this._pointers[e.pointerId] = e;
  9312. this._pointersCount++;
  9313. },
  9314. _globalPointerMove: function (e) {
  9315. if (this._pointers[e.pointerId]) {
  9316. this._pointers[e.pointerId] = e;
  9317. }
  9318. },
  9319. _globalPointerUp: function (e) {
  9320. delete this._pointers[e.pointerId];
  9321. this._pointersCount--;
  9322. },
  9323. _handlePointer: function (e, handler) {
  9324. e.touches = [];
  9325. for (var i in this._pointers) {
  9326. e.touches.push(this._pointers[i]);
  9327. }
  9328. e.changedTouches = [e];
  9329. handler(e);
  9330. },
  9331. _addPointerMove: function (obj, handler, id) {
  9332. var onMove = L.bind(function (e) {
  9333. // don't fire touch moves when mouse isn't down
  9334. if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }
  9335. this._handlePointer(e, handler);
  9336. }, this);
  9337. obj['_leaflet_touchmove' + id] = onMove;
  9338. obj.addEventListener(this.POINTER_MOVE, onMove, false);
  9339. },
  9340. _addPointerEnd: function (obj, handler, id) {
  9341. var onUp = L.bind(function (e) {
  9342. this._handlePointer(e, handler);
  9343. }, this);
  9344. obj['_leaflet_touchend' + id] = onUp;
  9345. obj.addEventListener(this.POINTER_UP, onUp, false);
  9346. obj.addEventListener(this.POINTER_CANCEL, onUp, false);
  9347. }
  9348. });
  9349. /*
  9350. * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.
  9351. */
  9352. // @namespace Map
  9353. // @section Interaction Options
  9354. L.Map.mergeOptions({
  9355. // @section Touch interaction options
  9356. // @option touchZoom: Boolean|String = *
  9357. // Whether the map can be zoomed by touch-dragging with two fingers. If
  9358. // passed `'center'`, it will zoom to the center of the view regardless of
  9359. // where the touch events (fingers) were. Enabled for touch-capable web
  9360. // browsers except for old Androids.
  9361. touchZoom: L.Browser.touch && !L.Browser.android23,
  9362. // @option bounceAtZoomLimits: Boolean = true
  9363. // Set it to false if you don't want the map to zoom beyond min/max zoom
  9364. // and then bounce back when pinch-zooming.
  9365. bounceAtZoomLimits: true
  9366. });
  9367. L.Map.TouchZoom = L.Handler.extend({
  9368. addHooks: function () {
  9369. L.DomUtil.addClass(this._map._container, 'leaflet-touch-zoom');
  9370. L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this);
  9371. },
  9372. removeHooks: function () {
  9373. L.DomUtil.removeClass(this._map._container, 'leaflet-touch-zoom');
  9374. L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);
  9375. },
  9376. _onTouchStart: function (e) {
  9377. var map = this._map;
  9378. if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }
  9379. var p1 = map.mouseEventToContainerPoint(e.touches[0]),
  9380. p2 = map.mouseEventToContainerPoint(e.touches[1]);
  9381. this._centerPoint = map.getSize()._divideBy(2);
  9382. this._startLatLng = map.containerPointToLatLng(this._centerPoint);
  9383. if (map.options.touchZoom !== 'center') {
  9384. this._pinchStartLatLng = map.containerPointToLatLng(p1.add(p2)._divideBy(2));
  9385. }
  9386. this._startDist = p1.distanceTo(p2);
  9387. this._startZoom = map.getZoom();
  9388. this._moved = false;
  9389. this._zooming = true;
  9390. map._stop();
  9391. L.DomEvent
  9392. .on(document, 'touchmove', this._onTouchMove, this)
  9393. .on(document, 'touchend', this._onTouchEnd, this);
  9394. L.DomEvent.preventDefault(e);
  9395. },
  9396. _onTouchMove: function (e) {
  9397. if (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }
  9398. var map = this._map,
  9399. p1 = map.mouseEventToContainerPoint(e.touches[0]),
  9400. p2 = map.mouseEventToContainerPoint(e.touches[1]),
  9401. scale = p1.distanceTo(p2) / this._startDist;
  9402. this._zoom = map.getScaleZoom(scale, this._startZoom);
  9403. if (!map.options.bounceAtZoomLimits && (
  9404. (this._zoom < map.getMinZoom() && scale < 1) ||
  9405. (this._zoom > map.getMaxZoom() && scale > 1))) {
  9406. this._zoom = map._limitZoom(this._zoom);
  9407. }
  9408. if (map.options.touchZoom === 'center') {
  9409. this._center = this._startLatLng;
  9410. if (scale === 1) { return; }
  9411. } else {
  9412. // Get delta from pinch to center, so centerLatLng is delta applied to initial pinchLatLng
  9413. var delta = p1._add(p2)._divideBy(2)._subtract(this._centerPoint);
  9414. if (scale === 1 && delta.x === 0 && delta.y === 0) { return; }
  9415. this._center = map.unproject(map.project(this._pinchStartLatLng, this._zoom).subtract(delta), this._zoom);
  9416. }
  9417. if (!this._moved) {
  9418. map._moveStart(true);
  9419. this._moved = true;
  9420. }
  9421. L.Util.cancelAnimFrame(this._animRequest);
  9422. var moveFn = L.bind(map._move, map, this._center, this._zoom, {pinch: true, round: false});
  9423. this._animRequest = L.Util.requestAnimFrame(moveFn, this, true);
  9424. L.DomEvent.preventDefault(e);
  9425. },
  9426. _onTouchEnd: function () {
  9427. if (!this._moved || !this._zooming) {
  9428. this._zooming = false;
  9429. return;
  9430. }
  9431. this._zooming = false;
  9432. L.Util.cancelAnimFrame(this._animRequest);
  9433. L.DomEvent
  9434. .off(document, 'touchmove', this._onTouchMove)
  9435. .off(document, 'touchend', this._onTouchEnd);
  9436. // Pinch updates GridLayers' levels only when zoomSnap is off, so zoomSnap becomes noUpdate.
  9437. if (this._map.options.zoomAnimation) {
  9438. this._map._animateZoom(this._center, this._map._limitZoom(this._zoom), true, this._map.options.zoomSnap);
  9439. } else {
  9440. this._map._resetView(this._center, this._map._limitZoom(this._zoom));
  9441. }
  9442. }
  9443. });
  9444. // @section Handlers
  9445. // @property touchZoom: Handler
  9446. // Touch zoom handler.
  9447. L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);
  9448. /*
  9449. * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.
  9450. */
  9451. // @namespace Map
  9452. // @section Interaction Options
  9453. L.Map.mergeOptions({
  9454. // @section Touch interaction options
  9455. // @option tap: Boolean = true
  9456. // Enables mobile hacks for supporting instant taps (fixing 200ms click
  9457. // delay on iOS/Android) and touch holds (fired as `contextmenu` events).
  9458. tap: true,
  9459. // @option tapTolerance: Number = 15
  9460. // The max number of pixels a user can shift his finger during touch
  9461. // for it to be considered a valid tap.
  9462. tapTolerance: 15
  9463. });
  9464. L.Map.Tap = L.Handler.extend({
  9465. addHooks: function () {
  9466. L.DomEvent.on(this._map._container, 'touchstart', this._onDown, this);
  9467. },
  9468. removeHooks: function () {
  9469. L.DomEvent.off(this._map._container, 'touchstart', this._onDown, this);
  9470. },
  9471. _onDown: function (e) {
  9472. if (!e.touches) { return; }
  9473. L.DomEvent.preventDefault(e);
  9474. this._fireClick = true;
  9475. // don't simulate click or track longpress if more than 1 touch
  9476. if (e.touches.length > 1) {
  9477. this._fireClick = false;
  9478. clearTimeout(this._holdTimeout);
  9479. return;
  9480. }
  9481. var first = e.touches[0],
  9482. el = first.target;
  9483. this._startPos = this._newPos = new L.Point(first.clientX, first.clientY);
  9484. // if touching a link, highlight it
  9485. if (el.tagName && el.tagName.toLowerCase() === 'a') {
  9486. L.DomUtil.addClass(el, 'leaflet-active');
  9487. }
  9488. // simulate long hold but setting a timeout
  9489. this._holdTimeout = setTimeout(L.bind(function () {
  9490. if (this._isTapValid()) {
  9491. this._fireClick = false;
  9492. this._onUp();
  9493. this._simulateEvent('contextmenu', first);
  9494. }
  9495. }, this), 1000);
  9496. this._simulateEvent('mousedown', first);
  9497. L.DomEvent.on(document, {
  9498. touchmove: this._onMove,
  9499. touchend: this._onUp
  9500. }, this);
  9501. },
  9502. _onUp: function (e) {
  9503. clearTimeout(this._holdTimeout);
  9504. L.DomEvent.off(document, {
  9505. touchmove: this._onMove,
  9506. touchend: this._onUp
  9507. }, this);
  9508. if (this._fireClick && e && e.changedTouches) {
  9509. var first = e.changedTouches[0],
  9510. el = first.target;
  9511. if (el && el.tagName && el.tagName.toLowerCase() === 'a') {
  9512. L.DomUtil.removeClass(el, 'leaflet-active');
  9513. }
  9514. this._simulateEvent('mouseup', first);
  9515. // simulate click if the touch didn't move too much
  9516. if (this._isTapValid()) {
  9517. this._simulateEvent('click', first);
  9518. }
  9519. }
  9520. },
  9521. _isTapValid: function () {
  9522. return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;
  9523. },
  9524. _onMove: function (e) {
  9525. var first = e.touches[0];
  9526. this._newPos = new L.Point(first.clientX, first.clientY);
  9527. this._simulateEvent('mousemove', first);
  9528. },
  9529. _simulateEvent: function (type, e) {
  9530. var simulatedEvent = document.createEvent('MouseEvents');
  9531. simulatedEvent._simulated = true;
  9532. e.target._simulatedClick = true;
  9533. simulatedEvent.initMouseEvent(
  9534. type, true, true, window, 1,
  9535. e.screenX, e.screenY,
  9536. e.clientX, e.clientY,
  9537. false, false, false, false, 0, null);
  9538. e.target.dispatchEvent(simulatedEvent);
  9539. }
  9540. });
  9541. // @section Handlers
  9542. // @property tap: Handler
  9543. // Mobile touch hacks (quick tap and touch hold) handler.
  9544. if (L.Browser.touch && !L.Browser.pointer) {
  9545. L.Map.addInitHook('addHandler', 'tap', L.Map.Tap);
  9546. }
  9547. /*
  9548. * L.Handler.BoxZoom is used to add shift-drag zoom interaction to the map
  9549. * (zoom to a selected bounding box), enabled by default.
  9550. */
  9551. // @namespace Map
  9552. // @section Interaction Options
  9553. L.Map.mergeOptions({
  9554. // @option boxZoom: Boolean = true
  9555. // Whether the map can be zoomed to a rectangular area specified by
  9556. // dragging the mouse while pressing the shift key.
  9557. boxZoom: true
  9558. });
  9559. L.Map.BoxZoom = L.Handler.extend({
  9560. initialize: function (map) {
  9561. this._map = map;
  9562. this._container = map._container;
  9563. this._pane = map._panes.overlayPane;
  9564. },
  9565. addHooks: function () {
  9566. L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);
  9567. },
  9568. removeHooks: function () {
  9569. L.DomEvent.off(this._container, 'mousedown', this._onMouseDown, this);
  9570. },
  9571. moved: function () {
  9572. return this._moved;
  9573. },
  9574. _resetState: function () {
  9575. this._moved = false;
  9576. },
  9577. _onMouseDown: function (e) {
  9578. if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }
  9579. this._resetState();
  9580. L.DomUtil.disableTextSelection();
  9581. L.DomUtil.disableImageDrag();
  9582. this._startPoint = this._map.mouseEventToContainerPoint(e);
  9583. L.DomEvent.on(document, {
  9584. contextmenu: L.DomEvent.stop,
  9585. mousemove: this._onMouseMove,
  9586. mouseup: this._onMouseUp,
  9587. keydown: this._onKeyDown
  9588. }, this);
  9589. },
  9590. _onMouseMove: function (e) {
  9591. if (!this._moved) {
  9592. this._moved = true;
  9593. this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._container);
  9594. L.DomUtil.addClass(this._container, 'leaflet-crosshair');
  9595. this._map.fire('boxzoomstart');
  9596. }
  9597. this._point = this._map.mouseEventToContainerPoint(e);
  9598. var bounds = new L.Bounds(this._point, this._startPoint),
  9599. size = bounds.getSize();
  9600. L.DomUtil.setPosition(this._box, bounds.min);
  9601. this._box.style.width = size.x + 'px';
  9602. this._box.style.height = size.y + 'px';
  9603. },
  9604. _finish: function () {
  9605. if (this._moved) {
  9606. L.DomUtil.remove(this._box);
  9607. L.DomUtil.removeClass(this._container, 'leaflet-crosshair');
  9608. }
  9609. L.DomUtil.enableTextSelection();
  9610. L.DomUtil.enableImageDrag();
  9611. L.DomEvent.off(document, {
  9612. contextmenu: L.DomEvent.stop,
  9613. mousemove: this._onMouseMove,
  9614. mouseup: this._onMouseUp,
  9615. keydown: this._onKeyDown
  9616. }, this);
  9617. },
  9618. _onMouseUp: function (e) {
  9619. if ((e.which !== 1) && (e.button !== 1)) { return; }
  9620. this._finish();
  9621. if (!this._moved) { return; }
  9622. // Postpone to next JS tick so internal click event handling
  9623. // still see it as "moved".
  9624. setTimeout(L.bind(this._resetState, this), 0);
  9625. var bounds = new L.LatLngBounds(
  9626. this._map.containerPointToLatLng(this._startPoint),
  9627. this._map.containerPointToLatLng(this._point));
  9628. this._map
  9629. .fitBounds(bounds)
  9630. .fire('boxzoomend', {boxZoomBounds: bounds});
  9631. },
  9632. _onKeyDown: function (e) {
  9633. if (e.keyCode === 27) {
  9634. this._finish();
  9635. }
  9636. }
  9637. });
  9638. // @section Handlers
  9639. // @property boxZoom: Handler
  9640. // Box (shift-drag with mouse) zoom handler.
  9641. L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);
  9642. /*
  9643. * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default.
  9644. */
  9645. // @namespace Map
  9646. // @section Keyboard Navigation Options
  9647. L.Map.mergeOptions({
  9648. // @option keyboard: Boolean = true
  9649. // Makes the map focusable and allows users to navigate the map with keyboard
  9650. // arrows and `+`/`-` keys.
  9651. keyboard: true,
  9652. // @option keyboardPanDelta: Number = 80
  9653. // Amount of pixels to pan when pressing an arrow key.
  9654. keyboardPanDelta: 80
  9655. });
  9656. L.Map.Keyboard = L.Handler.extend({
  9657. keyCodes: {
  9658. left: [37],
  9659. right: [39],
  9660. down: [40],
  9661. up: [38],
  9662. zoomIn: [187, 107, 61, 171],
  9663. zoomOut: [189, 109, 54, 173]
  9664. },
  9665. initialize: function (map) {
  9666. this._map = map;
  9667. this._setPanDelta(map.options.keyboardPanDelta);
  9668. this._setZoomDelta(map.options.zoomDelta);
  9669. },
  9670. addHooks: function () {
  9671. var container = this._map._container;
  9672. // make the container focusable by tabbing
  9673. if (container.tabIndex <= 0) {
  9674. container.tabIndex = '0';
  9675. }
  9676. L.DomEvent.on(container, {
  9677. focus: this._onFocus,
  9678. blur: this._onBlur,
  9679. mousedown: this._onMouseDown
  9680. }, this);
  9681. this._map.on({
  9682. focus: this._addHooks,
  9683. blur: this._removeHooks
  9684. }, this);
  9685. },
  9686. removeHooks: function () {
  9687. this._removeHooks();
  9688. L.DomEvent.off(this._map._container, {
  9689. focus: this._onFocus,
  9690. blur: this._onBlur,
  9691. mousedown: this._onMouseDown
  9692. }, this);
  9693. this._map.off({
  9694. focus: this._addHooks,
  9695. blur: this._removeHooks
  9696. }, this);
  9697. },
  9698. _onMouseDown: function () {
  9699. if (this._focused) { return; }
  9700. var body = document.body,
  9701. docEl = document.documentElement,
  9702. top = body.scrollTop || docEl.scrollTop,
  9703. left = body.scrollLeft || docEl.scrollLeft;
  9704. this._map._container.focus();
  9705. window.scrollTo(left, top);
  9706. },
  9707. _onFocus: function () {
  9708. this._focused = true;
  9709. this._map.fire('focus');
  9710. },
  9711. _onBlur: function () {
  9712. this._focused = false;
  9713. this._map.fire('blur');
  9714. },
  9715. _setPanDelta: function (panDelta) {
  9716. var keys = this._panKeys = {},
  9717. codes = this.keyCodes,
  9718. i, len;
  9719. for (i = 0, len = codes.left.length; i < len; i++) {
  9720. keys[codes.left[i]] = [-1 * panDelta, 0];
  9721. }
  9722. for (i = 0, len = codes.right.length; i < len; i++) {
  9723. keys[codes.right[i]] = [panDelta, 0];
  9724. }
  9725. for (i = 0, len = codes.down.length; i < len; i++) {
  9726. keys[codes.down[i]] = [0, panDelta];
  9727. }
  9728. for (i = 0, len = codes.up.length; i < len; i++) {
  9729. keys[codes.up[i]] = [0, -1 * panDelta];
  9730. }
  9731. },
  9732. _setZoomDelta: function (zoomDelta) {
  9733. var keys = this._zoomKeys = {},
  9734. codes = this.keyCodes,
  9735. i, len;
  9736. for (i = 0, len = codes.zoomIn.length; i < len; i++) {
  9737. keys[codes.zoomIn[i]] = zoomDelta;
  9738. }
  9739. for (i = 0, len = codes.zoomOut.length; i < len; i++) {
  9740. keys[codes.zoomOut[i]] = -zoomDelta;
  9741. }
  9742. },
  9743. _addHooks: function () {
  9744. L.DomEvent.on(document, 'keydown', this._onKeyDown, this);
  9745. },
  9746. _removeHooks: function () {
  9747. L.DomEvent.off(document, 'keydown', this._onKeyDown, this);
  9748. },
  9749. _onKeyDown: function (e) {
  9750. if (e.altKey || e.ctrlKey || e.metaKey) { return; }
  9751. var key = e.keyCode,
  9752. map = this._map,
  9753. offset;
  9754. if (key in this._panKeys) {
  9755. if (map._panAnim && map._panAnim._inProgress) { return; }
  9756. offset = this._panKeys[key];
  9757. if (e.shiftKey) {
  9758. offset = L.point(offset).multiplyBy(3);
  9759. }
  9760. map.panBy(offset);
  9761. if (map.options.maxBounds) {
  9762. map.panInsideBounds(map.options.maxBounds);
  9763. }
  9764. } else if (key in this._zoomKeys) {
  9765. map.setZoom(map.getZoom() + (e.shiftKey ? 3 : 1) * this._zoomKeys[key]);
  9766. } else if (key === 27) {
  9767. map.closePopup();
  9768. } else {
  9769. return;
  9770. }
  9771. L.DomEvent.stop(e);
  9772. }
  9773. });
  9774. // @section Handlers
  9775. // @section Handlers
  9776. // @property keyboard: Handler
  9777. // Keyboard navigation handler.
  9778. L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard);
  9779. /*
  9780. * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.
  9781. */
  9782. /* @namespace Marker
  9783. * @section Interaction handlers
  9784. *
  9785. * Interaction handlers are properties of a marker instance that allow you to control interaction behavior in runtime, enabling or disabling certain features such as dragging (see `Handler` methods). Example:
  9786. *
  9787. * ```js
  9788. * marker.dragging.disable();
  9789. * ```
  9790. *
  9791. * @property dragging: Handler
  9792. * Marker dragging handler (by both mouse and touch).
  9793. */
  9794. L.Handler.MarkerDrag = L.Handler.extend({
  9795. initialize: function (marker) {
  9796. this._marker = marker;
  9797. },
  9798. addHooks: function () {
  9799. var icon = this._marker._icon;
  9800. if (!this._draggable) {
  9801. this._draggable = new L.Draggable(icon, icon, true);
  9802. }
  9803. this._draggable.on({
  9804. dragstart: this._onDragStart,
  9805. drag: this._onDrag,
  9806. dragend: this._onDragEnd
  9807. }, this).enable();
  9808. L.DomUtil.addClass(icon, 'leaflet-marker-draggable');
  9809. },
  9810. removeHooks: function () {
  9811. this._draggable.off({
  9812. dragstart: this._onDragStart,
  9813. drag: this._onDrag,
  9814. dragend: this._onDragEnd
  9815. }, this).disable();
  9816. if (this._marker._icon) {
  9817. L.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable');
  9818. }
  9819. },
  9820. moved: function () {
  9821. return this._draggable && this._draggable._moved;
  9822. },
  9823. _onDragStart: function () {
  9824. // @section Dragging events
  9825. // @event dragstart: Event
  9826. // Fired when the user starts dragging the marker.
  9827. // @event movestart: Event
  9828. // Fired when the marker starts moving (because of dragging).
  9829. this._oldLatLng = this._marker.getLatLng();
  9830. this._marker
  9831. .closePopup()
  9832. .fire('movestart')
  9833. .fire('dragstart');
  9834. },
  9835. _onDrag: function (e) {
  9836. var marker = this._marker,
  9837. shadow = marker._shadow,
  9838. iconPos = L.DomUtil.getPosition(marker._icon),
  9839. latlng = marker._map.layerPointToLatLng(iconPos);
  9840. // update shadow position
  9841. if (shadow) {
  9842. L.DomUtil.setPosition(shadow, iconPos);
  9843. }
  9844. marker._latlng = latlng;
  9845. e.latlng = latlng;
  9846. e.oldLatLng = this._oldLatLng;
  9847. // @event drag: Event
  9848. // Fired repeatedly while the user drags the marker.
  9849. marker
  9850. .fire('move', e)
  9851. .fire('drag', e);
  9852. },
  9853. _onDragEnd: function (e) {
  9854. // @event dragend: DragEndEvent
  9855. // Fired when the user stops dragging the marker.
  9856. // @event moveend: Event
  9857. // Fired when the marker stops moving (because of dragging).
  9858. delete this._oldLatLng;
  9859. this._marker
  9860. .fire('moveend')
  9861. .fire('dragend', e);
  9862. }
  9863. });
  9864. /*
  9865. * @class Control
  9866. * @aka L.Control
  9867. * @inherits Class
  9868. *
  9869. * L.Control is a base class for implementing map controls. Handles positioning.
  9870. * All other controls extend from this class.
  9871. */
  9872. L.Control = L.Class.extend({
  9873. // @section
  9874. // @aka Control options
  9875. options: {
  9876. // @option position: String = 'topright'
  9877. // The position of the control (one of the map corners). Possible values are `'topleft'`,
  9878. // `'topright'`, `'bottomleft'` or `'bottomright'`
  9879. position: 'topright'
  9880. },
  9881. initialize: function (options) {
  9882. L.setOptions(this, options);
  9883. },
  9884. /* @section
  9885. * Classes extending L.Control will inherit the following methods:
  9886. *
  9887. * @method getPosition: string
  9888. * Returns the position of the control.
  9889. */
  9890. getPosition: function () {
  9891. return this.options.position;
  9892. },
  9893. // @method setPosition(position: string): this
  9894. // Sets the position of the control.
  9895. setPosition: function (position) {
  9896. var map = this._map;
  9897. if (map) {
  9898. map.removeControl(this);
  9899. }
  9900. this.options.position = position;
  9901. if (map) {
  9902. map.addControl(this);
  9903. }
  9904. return this;
  9905. },
  9906. // @method getContainer: HTMLElement
  9907. // Returns the HTMLElement that contains the control.
  9908. getContainer: function () {
  9909. return this._container;
  9910. },
  9911. // @method addTo(map: Map): this
  9912. // Adds the control to the given map.
  9913. addTo: function (map) {
  9914. this.remove();
  9915. this._map = map;
  9916. var container = this._container = this.onAdd(map),
  9917. pos = this.getPosition(),
  9918. corner = map._controlCorners[pos];
  9919. L.DomUtil.addClass(container, 'leaflet-control');
  9920. if (pos.indexOf('bottom') !== -1) {
  9921. corner.insertBefore(container, corner.firstChild);
  9922. } else {
  9923. corner.appendChild(container);
  9924. }
  9925. return this;
  9926. },
  9927. // @method remove: this
  9928. // Removes the control from the map it is currently active on.
  9929. remove: function () {
  9930. if (!this._map) {
  9931. return this;
  9932. }
  9933. L.DomUtil.remove(this._container);
  9934. if (this.onRemove) {
  9935. this.onRemove(this._map);
  9936. }
  9937. this._map = null;
  9938. return this;
  9939. },
  9940. _refocusOnMap: function (e) {
  9941. // if map exists and event is not a keyboard event
  9942. if (this._map && e && e.screenX > 0 && e.screenY > 0) {
  9943. this._map.getContainer().focus();
  9944. }
  9945. }
  9946. });
  9947. L.control = function (options) {
  9948. return new L.Control(options);
  9949. };
  9950. /* @section Extension methods
  9951. * @uninheritable
  9952. *
  9953. * Every control should extend from `L.Control` and (re-)implement the following methods.
  9954. *
  9955. * @method onAdd(map: Map): HTMLElement
  9956. * Should return the container DOM element for the control and add listeners on relevant map events. Called on [`control.addTo(map)`](#control-addTo).
  9957. *
  9958. * @method onRemove(map: Map)
  9959. * Optional method. Should contain all clean up code that removes the listeners previously added in [`onAdd`](#control-onadd). Called on [`control.remove()`](#control-remove).
  9960. */
  9961. /* @namespace Map
  9962. * @section Methods for Layers and Controls
  9963. */
  9964. L.Map.include({
  9965. // @method addControl(control: Control): this
  9966. // Adds the given control to the map
  9967. addControl: function (control) {
  9968. control.addTo(this);
  9969. return this;
  9970. },
  9971. // @method removeControl(control: Control): this
  9972. // Removes the given control from the map
  9973. removeControl: function (control) {
  9974. control.remove();
  9975. return this;
  9976. },
  9977. _initControlPos: function () {
  9978. var corners = this._controlCorners = {},
  9979. l = 'leaflet-',
  9980. container = this._controlContainer =
  9981. L.DomUtil.create('div', l + 'control-container', this._container);
  9982. function createCorner(vSide, hSide) {
  9983. var className = l + vSide + ' ' + l + hSide;
  9984. corners[vSide + hSide] = L.DomUtil.create('div', className, container);
  9985. }
  9986. createCorner('top', 'left');
  9987. createCorner('top', 'right');
  9988. createCorner('bottom', 'left');
  9989. createCorner('bottom', 'right');
  9990. },
  9991. _clearControlPos: function () {
  9992. L.DomUtil.remove(this._controlContainer);
  9993. }
  9994. });
  9995. /*
  9996. * @class Control.Zoom
  9997. * @aka L.Control.Zoom
  9998. * @inherits Control
  9999. *
  10000. * A basic zoom control with two buttons (zoom in and zoom out). It is put on the map by default unless you set its [`zoomControl` option](#map-zoomcontrol) to `false`. Extends `Control`.
  10001. */
  10002. L.Control.Zoom = L.Control.extend({
  10003. // @section
  10004. // @aka Control.Zoom options
  10005. options: {
  10006. position: 'topleft',
  10007. // @option zoomInText: String = '+'
  10008. // The text set on the 'zoom in' button.
  10009. zoomInText: '+',
  10010. // @option zoomInTitle: String = 'Zoom in'
  10011. // The title set on the 'zoom in' button.
  10012. zoomInTitle: 'Zoom in',
  10013. // @option zoomOutText: String = '-'
  10014. // The text set on the 'zoom out' button.
  10015. zoomOutText: '-',
  10016. // @option zoomOutTitle: String = 'Zoom out'
  10017. // The title set on the 'zoom out' button.
  10018. zoomOutTitle: 'Zoom out'
  10019. },
  10020. onAdd: function (map) {
  10021. var zoomName = 'leaflet-control-zoom',
  10022. container = L.DomUtil.create('div', zoomName + ' leaflet-bar'),
  10023. options = this.options;
  10024. this._zoomInButton = this._createButton(options.zoomInText, options.zoomInTitle,
  10025. zoomName + '-in', container, this._zoomIn);
  10026. this._zoomOutButton = this._createButton(options.zoomOutText, options.zoomOutTitle,
  10027. zoomName + '-out', container, this._zoomOut);
  10028. this._updateDisabled();
  10029. map.on('zoomend zoomlevelschange', this._updateDisabled, this);
  10030. return container;
  10031. },
  10032. onRemove: function (map) {
  10033. map.off('zoomend zoomlevelschange', this._updateDisabled, this);
  10034. },
  10035. disable: function () {
  10036. this._disabled = true;
  10037. this._updateDisabled();
  10038. return this;
  10039. },
  10040. enable: function () {
  10041. this._disabled = false;
  10042. this._updateDisabled();
  10043. return this;
  10044. },
  10045. _zoomIn: function (e) {
  10046. if (!this._disabled && this._map._zoom < this._map.getMaxZoom()) {
  10047. this._map.zoomIn(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));
  10048. }
  10049. },
  10050. _zoomOut: function (e) {
  10051. if (!this._disabled && this._map._zoom > this._map.getMinZoom()) {
  10052. this._map.zoomOut(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));
  10053. }
  10054. },
  10055. _createButton: function (html, title, className, container, fn) {
  10056. var link = L.DomUtil.create('a', className, container);
  10057. link.innerHTML = html;
  10058. link.href = '#';
  10059. link.title = title;
  10060. /*
  10061. * Will force screen readers like VoiceOver to read this as "Zoom in - button"
  10062. */
  10063. link.setAttribute('role', 'button');
  10064. link.setAttribute('aria-label', title);
  10065. L.DomEvent
  10066. .on(link, 'mousedown dblclick', L.DomEvent.stopPropagation)
  10067. .on(link, 'click', L.DomEvent.stop)
  10068. .on(link, 'click', fn, this)
  10069. .on(link, 'click', this._refocusOnMap, this);
  10070. return link;
  10071. },
  10072. _updateDisabled: function () {
  10073. var map = this._map,
  10074. className = 'leaflet-disabled';
  10075. L.DomUtil.removeClass(this._zoomInButton, className);
  10076. L.DomUtil.removeClass(this._zoomOutButton, className);
  10077. if (this._disabled || map._zoom === map.getMinZoom()) {
  10078. L.DomUtil.addClass(this._zoomOutButton, className);
  10079. }
  10080. if (this._disabled || map._zoom === map.getMaxZoom()) {
  10081. L.DomUtil.addClass(this._zoomInButton, className);
  10082. }
  10083. }
  10084. });
  10085. // @namespace Map
  10086. // @section Control options
  10087. // @option zoomControl: Boolean = true
  10088. // Whether a [zoom control](#control-zoom) is added to the map by default.
  10089. L.Map.mergeOptions({
  10090. zoomControl: true
  10091. });
  10092. L.Map.addInitHook(function () {
  10093. if (this.options.zoomControl) {
  10094. this.zoomControl = new L.Control.Zoom();
  10095. this.addControl(this.zoomControl);
  10096. }
  10097. });
  10098. // @namespace Control.Zoom
  10099. // @factory L.control.zoom(options: Control.Zoom options)
  10100. // Creates a zoom control
  10101. L.control.zoom = function (options) {
  10102. return new L.Control.Zoom(options);
  10103. };
  10104. /*
  10105. * @class Control.Attribution
  10106. * @aka L.Control.Attribution
  10107. * @inherits Control
  10108. *
  10109. * The attribution control allows you to display attribution data in a small text box on a map. It is put on the map by default unless you set its [`attributionControl` option](#map-attributioncontrol) to `false`, and it fetches attribution texts from layers with the [`getAttribution` method](#layer-getattribution) automatically. Extends Control.
  10110. */
  10111. L.Control.Attribution = L.Control.extend({
  10112. // @section
  10113. // @aka Control.Attribution options
  10114. options: {
  10115. position: 'bottomright',
  10116. // @option prefix: String = 'Leaflet'
  10117. // The HTML text shown before the attributions. Pass `false` to disable.
  10118. prefix: '<a href="http://leafletjs.com" title="A JS library for interactive maps">Leaflet</a>'
  10119. },
  10120. initialize: function (options) {
  10121. L.setOptions(this, options);
  10122. this._attributions = {};
  10123. },
  10124. onAdd: function (map) {
  10125. map.attributionControl = this;
  10126. this._container = L.DomUtil.create('div', 'leaflet-control-attribution');
  10127. if (L.DomEvent) {
  10128. L.DomEvent.disableClickPropagation(this._container);
  10129. }
  10130. // TODO ugly, refactor
  10131. for (var i in map._layers) {
  10132. if (map._layers[i].getAttribution) {
  10133. this.addAttribution(map._layers[i].getAttribution());
  10134. }
  10135. }
  10136. this._update();
  10137. return this._container;
  10138. },
  10139. // @method setPrefix(prefix: String): this
  10140. // Sets the text before the attributions.
  10141. setPrefix: function (prefix) {
  10142. this.options.prefix = prefix;
  10143. this._update();
  10144. return this;
  10145. },
  10146. // @method addAttribution(text: String): this
  10147. // Adds an attribution text (e.g. `'Vector data &copy; Mapbox'`).
  10148. addAttribution: function (text) {
  10149. if (!text) { return this; }
  10150. if (!this._attributions[text]) {
  10151. this._attributions[text] = 0;
  10152. }
  10153. this._attributions[text]++;
  10154. this._update();
  10155. return this;
  10156. },
  10157. // @method removeAttribution(text: String): this
  10158. // Removes an attribution text.
  10159. removeAttribution: function (text) {
  10160. if (!text) { return this; }
  10161. if (this._attributions[text]) {
  10162. this._attributions[text]--;
  10163. this._update();
  10164. }
  10165. return this;
  10166. },
  10167. _update: function () {
  10168. if (!this._map) { return; }
  10169. var attribs = [];
  10170. for (var i in this._attributions) {
  10171. if (this._attributions[i]) {
  10172. attribs.push(i);
  10173. }
  10174. }
  10175. var prefixAndAttribs = [];
  10176. if (this.options.prefix) {
  10177. prefixAndAttribs.push(this.options.prefix);
  10178. }
  10179. if (attribs.length) {
  10180. prefixAndAttribs.push(attribs.join(', '));
  10181. }
  10182. this._container.innerHTML = prefixAndAttribs.join(' | ');
  10183. }
  10184. });
  10185. // @namespace Map
  10186. // @section Control options
  10187. // @option attributionControl: Boolean = true
  10188. // Whether a [attribution control](#control-attribution) is added to the map by default.
  10189. L.Map.mergeOptions({
  10190. attributionControl: true
  10191. });
  10192. L.Map.addInitHook(function () {
  10193. if (this.options.attributionControl) {
  10194. new L.Control.Attribution().addTo(this);
  10195. }
  10196. });
  10197. // @namespace Control.Attribution
  10198. // @factory L.control.attribution(options: Control.Attribution options)
  10199. // Creates an attribution control.
  10200. L.control.attribution = function (options) {
  10201. return new L.Control.Attribution(options);
  10202. };
  10203. /*
  10204. * @class Control.Scale
  10205. * @aka L.Control.Scale
  10206. * @inherits Control
  10207. *
  10208. * A simple scale control that shows the scale of the current center of screen in metric (m/km) and imperial (mi/ft) systems. Extends `Control`.
  10209. *
  10210. * @example
  10211. *
  10212. * ```js
  10213. * L.control.scale().addTo(map);
  10214. * ```
  10215. */
  10216. L.Control.Scale = L.Control.extend({
  10217. // @section
  10218. // @aka Control.Scale options
  10219. options: {
  10220. position: 'bottomleft',
  10221. // @option maxWidth: Number = 100
  10222. // Maximum width of the control in pixels. The width is set dynamically to show round values (e.g. 100, 200, 500).
  10223. maxWidth: 100,
  10224. // @option metric: Boolean = True
  10225. // Whether to show the metric scale line (m/km).
  10226. metric: true,
  10227. // @option imperial: Boolean = True
  10228. // Whether to show the imperial scale line (mi/ft).
  10229. imperial: true
  10230. // @option updateWhenIdle: Boolean = false
  10231. // If `true`, the control is updated on [`moveend`](#map-moveend), otherwise it's always up-to-date (updated on [`move`](#map-move)).
  10232. },
  10233. onAdd: function (map) {
  10234. var className = 'leaflet-control-scale',
  10235. container = L.DomUtil.create('div', className),
  10236. options = this.options;
  10237. this._addScales(options, className + '-line', container);
  10238. map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
  10239. map.whenReady(this._update, this);
  10240. return container;
  10241. },
  10242. onRemove: function (map) {
  10243. map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
  10244. },
  10245. _addScales: function (options, className, container) {
  10246. if (options.metric) {
  10247. this._mScale = L.DomUtil.create('div', className, container);
  10248. }
  10249. if (options.imperial) {
  10250. this._iScale = L.DomUtil.create('div', className, container);
  10251. }
  10252. },
  10253. _update: function () {
  10254. var map = this._map,
  10255. y = map.getSize().y / 2;
  10256. var maxMeters = map.distance(
  10257. map.containerPointToLatLng([0, y]),
  10258. map.containerPointToLatLng([this.options.maxWidth, y]));
  10259. this._updateScales(maxMeters);
  10260. },
  10261. _updateScales: function (maxMeters) {
  10262. if (this.options.metric && maxMeters) {
  10263. this._updateMetric(maxMeters);
  10264. }
  10265. if (this.options.imperial && maxMeters) {
  10266. this._updateImperial(maxMeters);
  10267. }
  10268. },
  10269. _updateMetric: function (maxMeters) {
  10270. var meters = this._getRoundNum(maxMeters),
  10271. label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';
  10272. this._updateScale(this._mScale, label, meters / maxMeters);
  10273. },
  10274. _updateImperial: function (maxMeters) {
  10275. var maxFeet = maxMeters * 3.2808399,
  10276. maxMiles, miles, feet;
  10277. if (maxFeet > 5280) {
  10278. maxMiles = maxFeet / 5280;
  10279. miles = this._getRoundNum(maxMiles);
  10280. this._updateScale(this._iScale, miles + ' mi', miles / maxMiles);
  10281. } else {
  10282. feet = this._getRoundNum(maxFeet);
  10283. this._updateScale(this._iScale, feet + ' ft', feet / maxFeet);
  10284. }
  10285. },
  10286. _updateScale: function (scale, text, ratio) {
  10287. scale.style.width = Math.round(this.options.maxWidth * ratio) + 'px';
  10288. scale.innerHTML = text;
  10289. },
  10290. _getRoundNum: function (num) {
  10291. var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),
  10292. d = num / pow10;
  10293. d = d >= 10 ? 10 :
  10294. d >= 5 ? 5 :
  10295. d >= 3 ? 3 :
  10296. d >= 2 ? 2 : 1;
  10297. return pow10 * d;
  10298. }
  10299. });
  10300. // @factory L.control.scale(options?: Control.Scale options)
  10301. // Creates an scale control with the given options.
  10302. L.control.scale = function (options) {
  10303. return new L.Control.Scale(options);
  10304. };
  10305. /*
  10306. * @class Control.Layers
  10307. * @aka L.Control.Layers
  10308. * @inherits Control
  10309. *
  10310. * The layers control gives users the ability to switch between different base layers and switch overlays on/off (check out the [detailed example](http://leafletjs.com/examples/layers-control.html)). Extends `Control`.
  10311. *
  10312. * @example
  10313. *
  10314. * ```js
  10315. * var baseLayers = {
  10316. * "Mapbox": mapbox,
  10317. * "OpenStreetMap": osm
  10318. * };
  10319. *
  10320. * var overlays = {
  10321. * "Marker": marker,
  10322. * "Roads": roadsLayer
  10323. * };
  10324. *
  10325. * L.control.layers(baseLayers, overlays).addTo(map);
  10326. * ```
  10327. *
  10328. * The `baseLayers` and `overlays` parameters are object literals with layer names as keys and `Layer` objects as values:
  10329. *
  10330. * ```js
  10331. * {
  10332. * "<someName1>": layer1,
  10333. * "<someName2>": layer2
  10334. * }
  10335. * ```
  10336. *
  10337. * The layer names can contain HTML, which allows you to add additional styling to the items:
  10338. *
  10339. * ```js
  10340. * {"<img src='my-layer-icon' /> <span class='my-layer-item'>My Layer</span>": myLayer}
  10341. * ```
  10342. */
  10343. L.Control.Layers = L.Control.extend({
  10344. // @section
  10345. // @aka Control.Layers options
  10346. options: {
  10347. // @option collapsed: Boolean = true
  10348. // If `true`, the control will be collapsed into an icon and expanded on mouse hover or touch.
  10349. collapsed: true,
  10350. position: 'topright',
  10351. // @option autoZIndex: Boolean = true
  10352. // If `true`, the control will assign zIndexes in increasing order to all of its layers so that the order is preserved when switching them on/off.
  10353. autoZIndex: true,
  10354. // @option hideSingleBase: Boolean = false
  10355. // If `true`, the base layers in the control will be hidden when there is only one.
  10356. hideSingleBase: false,
  10357. // @option sortLayers: Boolean = false
  10358. // Whether to sort the layers. When `false`, layers will keep the order
  10359. // in which they were added to the control.
  10360. sortLayers: false,
  10361. // @option sortFunction: Function = *
  10362. // A [compare function](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/sort)
  10363. // that will be used for sorting the layers, when `sortLayers` is `true`.
  10364. // The function receives both the `L.Layer` instances and their names, as in
  10365. // `sortFunction(layerA, layerB, nameA, nameB)`.
  10366. // By default, it sorts layers alphabetically by their name.
  10367. sortFunction: function (layerA, layerB, nameA, nameB) {
  10368. return nameA < nameB ? -1 : (nameB < nameA ? 1 : 0);
  10369. }
  10370. },
  10371. initialize: function (baseLayers, overlays, options) {
  10372. L.setOptions(this, options);
  10373. this._layers = [];
  10374. this._lastZIndex = 0;
  10375. this._handlingClick = false;
  10376. for (var i in baseLayers) {
  10377. this._addLayer(baseLayers[i], i);
  10378. }
  10379. for (i in overlays) {
  10380. this._addLayer(overlays[i], i, true);
  10381. }
  10382. },
  10383. onAdd: function (map) {
  10384. this._initLayout();
  10385. this._update();
  10386. this._map = map;
  10387. map.on('zoomend', this._checkDisabledLayers, this);
  10388. return this._container;
  10389. },
  10390. onRemove: function () {
  10391. this._map.off('zoomend', this._checkDisabledLayers, this);
  10392. for (var i = 0; i < this._layers.length; i++) {
  10393. this._layers[i].layer.off('add remove', this._onLayerChange, this);
  10394. }
  10395. },
  10396. // @method addBaseLayer(layer: Layer, name: String): this
  10397. // Adds a base layer (radio button entry) with the given name to the control.
  10398. addBaseLayer: function (layer, name) {
  10399. this._addLayer(layer, name);
  10400. return (this._map) ? this._update() : this;
  10401. },
  10402. // @method addOverlay(layer: Layer, name: String): this
  10403. // Adds an overlay (checkbox entry) with the given name to the control.
  10404. addOverlay: function (layer, name) {
  10405. this._addLayer(layer, name, true);
  10406. return (this._map) ? this._update() : this;
  10407. },
  10408. // @method removeLayer(layer: Layer): this
  10409. // Remove the given layer from the control.
  10410. removeLayer: function (layer) {
  10411. layer.off('add remove', this._onLayerChange, this);
  10412. var obj = this._getLayer(L.stamp(layer));
  10413. if (obj) {
  10414. this._layers.splice(this._layers.indexOf(obj), 1);
  10415. }
  10416. return (this._map) ? this._update() : this;
  10417. },
  10418. // @method expand(): this
  10419. // Expand the control container if collapsed.
  10420. expand: function () {
  10421. L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');
  10422. this._form.style.height = null;
  10423. var acceptableHeight = this._map.getSize().y - (this._container.offsetTop + 50);
  10424. if (acceptableHeight < this._form.clientHeight) {
  10425. L.DomUtil.addClass(this._form, 'leaflet-control-layers-scrollbar');
  10426. this._form.style.height = acceptableHeight + 'px';
  10427. } else {
  10428. L.DomUtil.removeClass(this._form, 'leaflet-control-layers-scrollbar');
  10429. }
  10430. this._checkDisabledLayers();
  10431. return this;
  10432. },
  10433. // @method collapse(): this
  10434. // Collapse the control container if expanded.
  10435. collapse: function () {
  10436. L.DomUtil.removeClass(this._container, 'leaflet-control-layers-expanded');
  10437. return this;
  10438. },
  10439. _initLayout: function () {
  10440. var className = 'leaflet-control-layers',
  10441. container = this._container = L.DomUtil.create('div', className);
  10442. // makes this work on IE touch devices by stopping it from firing a mouseout event when the touch is released
  10443. container.setAttribute('aria-haspopup', true);
  10444. L.DomEvent.disableClickPropagation(container);
  10445. if (!L.Browser.touch) {
  10446. L.DomEvent.disableScrollPropagation(container);
  10447. }
  10448. var form = this._form = L.DomUtil.create('form', className + '-list');
  10449. if (!L.Browser.android) {
  10450. L.DomEvent.on(container, {
  10451. mouseenter: this.expand,
  10452. mouseleave: this.collapse
  10453. }, this);
  10454. }
  10455. var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);
  10456. link.href = '#';
  10457. link.title = 'Layers';
  10458. if (L.Browser.touch) {
  10459. L.DomEvent
  10460. .on(link, 'click', L.DomEvent.stop)
  10461. .on(link, 'click', this.expand, this);
  10462. } else {
  10463. L.DomEvent.on(link, 'focus', this.expand, this);
  10464. }
  10465. // work around for Firefox Android issue https://github.com/Leaflet/Leaflet/issues/2033
  10466. L.DomEvent.on(form, 'click', function () {
  10467. setTimeout(L.bind(this._onInputClick, this), 0);
  10468. }, this);
  10469. this._map.on('click', this.collapse, this);
  10470. // TODO keyboard accessibility
  10471. if (!this.options.collapsed) {
  10472. this.expand();
  10473. }
  10474. this._baseLayersList = L.DomUtil.create('div', className + '-base', form);
  10475. this._separator = L.DomUtil.create('div', className + '-separator', form);
  10476. this._overlaysList = L.DomUtil.create('div', className + '-overlays', form);
  10477. container.appendChild(form);
  10478. },
  10479. _getLayer: function (id) {
  10480. for (var i = 0; i < this._layers.length; i++) {
  10481. if (this._layers[i] && L.stamp(this._layers[i].layer) === id) {
  10482. return this._layers[i];
  10483. }
  10484. }
  10485. },
  10486. _addLayer: function (layer, name, overlay) {
  10487. layer.on('add remove', this._onLayerChange, this);
  10488. this._layers.push({
  10489. layer: layer,
  10490. name: name,
  10491. overlay: overlay
  10492. });
  10493. if (this.options.sortLayers) {
  10494. this._layers.sort(L.bind(function (a, b) {
  10495. return this.options.sortFunction(a.layer, b.layer, a.name, b.name);
  10496. }, this));
  10497. }
  10498. if (this.options.autoZIndex && layer.setZIndex) {
  10499. this._lastZIndex++;
  10500. layer.setZIndex(this._lastZIndex);
  10501. }
  10502. },
  10503. _update: function () {
  10504. if (!this._container) { return this; }
  10505. L.DomUtil.empty(this._baseLayersList);
  10506. L.DomUtil.empty(this._overlaysList);
  10507. var baseLayersPresent, overlaysPresent, i, obj, baseLayersCount = 0;
  10508. for (i = 0; i < this._layers.length; i++) {
  10509. obj = this._layers[i];
  10510. this._addItem(obj);
  10511. overlaysPresent = overlaysPresent || obj.overlay;
  10512. baseLayersPresent = baseLayersPresent || !obj.overlay;
  10513. baseLayersCount += !obj.overlay ? 1 : 0;
  10514. }
  10515. // Hide base layers section if there's only one layer.
  10516. if (this.options.hideSingleBase) {
  10517. baseLayersPresent = baseLayersPresent && baseLayersCount > 1;
  10518. this._baseLayersList.style.display = baseLayersPresent ? '' : 'none';
  10519. }
  10520. this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';
  10521. return this;
  10522. },
  10523. _onLayerChange: function (e) {
  10524. if (!this._handlingClick) {
  10525. this._update();
  10526. }
  10527. var obj = this._getLayer(L.stamp(e.target));
  10528. // @namespace Map
  10529. // @section Layer events
  10530. // @event baselayerchange: LayersControlEvent
  10531. // Fired when the base layer is changed through the [layer control](#control-layers).
  10532. // @event overlayadd: LayersControlEvent
  10533. // Fired when an overlay is selected through the [layer control](#control-layers).
  10534. // @event overlayremove: LayersControlEvent
  10535. // Fired when an overlay is deselected through the [layer control](#control-layers).
  10536. // @namespace Control.Layers
  10537. var type = obj.overlay ?
  10538. (e.type === 'add' ? 'overlayadd' : 'overlayremove') :
  10539. (e.type === 'add' ? 'baselayerchange' : null);
  10540. if (type) {
  10541. this._map.fire(type, obj);
  10542. }
  10543. },
  10544. // IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)
  10545. _createRadioElement: function (name, checked) {
  10546. var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' +
  10547. name + '"' + (checked ? ' checked="checked"' : '') + '/>';
  10548. var radioFragment = document.createElement('div');
  10549. radioFragment.innerHTML = radioHtml;
  10550. return radioFragment.firstChild;
  10551. },
  10552. _addItem: function (obj) {
  10553. var label = document.createElement('label'),
  10554. checked = this._map.hasLayer(obj.layer),
  10555. input;
  10556. if (obj.overlay) {
  10557. input = document.createElement('input');
  10558. input.type = 'checkbox';
  10559. input.className = 'leaflet-control-layers-selector';
  10560. input.defaultChecked = checked;
  10561. } else {
  10562. input = this._createRadioElement('leaflet-base-layers', checked);
  10563. }
  10564. input.layerId = L.stamp(obj.layer);
  10565. L.DomEvent.on(input, 'click', this._onInputClick, this);
  10566. var name = document.createElement('span');
  10567. name.innerHTML = ' ' + obj.name;
  10568. // Helps from preventing layer control flicker when checkboxes are disabled
  10569. // https://github.com/Leaflet/Leaflet/issues/2771
  10570. var holder = document.createElement('div');
  10571. label.appendChild(holder);
  10572. holder.appendChild(input);
  10573. holder.appendChild(name);
  10574. var container = obj.overlay ? this._overlaysList : this._baseLayersList;
  10575. container.appendChild(label);
  10576. this._checkDisabledLayers();
  10577. return label;
  10578. },
  10579. _onInputClick: function () {
  10580. var inputs = this._form.getElementsByTagName('input'),
  10581. input, layer, hasLayer;
  10582. var addedLayers = [],
  10583. removedLayers = [];
  10584. this._handlingClick = true;
  10585. for (var i = inputs.length - 1; i >= 0; i--) {
  10586. input = inputs[i];
  10587. layer = this._getLayer(input.layerId).layer;
  10588. hasLayer = this._map.hasLayer(layer);
  10589. if (input.checked && !hasLayer) {
  10590. addedLayers.push(layer);
  10591. } else if (!input.checked && hasLayer) {
  10592. removedLayers.push(layer);
  10593. }
  10594. }
  10595. // Bugfix issue 2318: Should remove all old layers before readding new ones
  10596. for (i = 0; i < removedLayers.length; i++) {
  10597. this._map.removeLayer(removedLayers[i]);
  10598. }
  10599. for (i = 0; i < addedLayers.length; i++) {
  10600. this._map.addLayer(addedLayers[i]);
  10601. }
  10602. this._handlingClick = false;
  10603. this._refocusOnMap();
  10604. },
  10605. _checkDisabledLayers: function () {
  10606. var inputs = this._form.getElementsByTagName('input'),
  10607. input,
  10608. layer,
  10609. zoom = this._map.getZoom();
  10610. for (var i = inputs.length - 1; i >= 0; i--) {
  10611. input = inputs[i];
  10612. layer = this._getLayer(input.layerId).layer;
  10613. input.disabled = (layer.options.minZoom !== undefined && zoom < layer.options.minZoom) ||
  10614. (layer.options.maxZoom !== undefined && zoom > layer.options.maxZoom);
  10615. }
  10616. },
  10617. _expand: function () {
  10618. // Backward compatibility, remove me in 1.1.
  10619. return this.expand();
  10620. },
  10621. _collapse: function () {
  10622. // Backward compatibility, remove me in 1.1.
  10623. return this.collapse();
  10624. }
  10625. });
  10626. // @factory L.control.layers(baselayers?: Object, overlays?: Object, options?: Control.Layers options)
  10627. // Creates an attribution control with the given layers. Base layers will be switched with radio buttons, while overlays will be switched with checkboxes. Note that all base layers should be passed in the base layers object, but only one should be added to the map during map instantiation.
  10628. L.control.layers = function (baseLayers, overlays, options) {
  10629. return new L.Control.Layers(baseLayers, overlays, options);
  10630. };
  10631. }(window, document));
  10632. },{}],4:[function(require,module,exports){
  10633. /*!
  10634. * mustache.js - Logic-less {{mustache}} templates with JavaScript
  10635. * http://github.com/janl/mustache.js
  10636. */
  10637. /*global define: false Mustache: true*/
  10638. (function defineMustache (global, factory) {
  10639. if (typeof exports === 'object' && exports && typeof exports.nodeName !== 'string') {
  10640. factory(exports); // CommonJS
  10641. } else if (typeof define === 'function' && define.amd) {
  10642. define(['exports'], factory); // AMD
  10643. } else {
  10644. global.Mustache = {};
  10645. factory(global.Mustache); // script, wsh, asp
  10646. }
  10647. }(this, function mustacheFactory (mustache) {
  10648. var objectToString = Object.prototype.toString;
  10649. var isArray = Array.isArray || function isArrayPolyfill (object) {
  10650. return objectToString.call(object) === '[object Array]';
  10651. };
  10652. function isFunction (object) {
  10653. return typeof object === 'function';
  10654. }
  10655. /**
  10656. * More correct typeof string handling array
  10657. * which normally returns typeof 'object'
  10658. */
  10659. function typeStr (obj) {
  10660. return isArray(obj) ? 'array' : typeof obj;
  10661. }
  10662. function escapeRegExp (string) {
  10663. return string.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, '\\$&');
  10664. }
  10665. /**
  10666. * Null safe way of checking whether or not an object,
  10667. * including its prototype, has a given property
  10668. */
  10669. function hasProperty (obj, propName) {
  10670. return obj != null && typeof obj === 'object' && (propName in obj);
  10671. }
  10672. // Workaround for https://issues.apache.org/jira/browse/COUCHDB-577
  10673. // See https://github.com/janl/mustache.js/issues/189
  10674. var regExpTest = RegExp.prototype.test;
  10675. function testRegExp (re, string) {
  10676. return regExpTest.call(re, string);
  10677. }
  10678. var nonSpaceRe = /\S/;
  10679. function isWhitespace (string) {
  10680. return !testRegExp(nonSpaceRe, string);
  10681. }
  10682. var entityMap = {
  10683. '&': '&amp;',
  10684. '<': '&lt;',
  10685. '>': '&gt;',
  10686. '"': '&quot;',
  10687. "'": '&#39;',
  10688. '/': '&#x2F;',
  10689. '`': '&#x60;',
  10690. '=': '&#x3D;'
  10691. };
  10692. function escapeHtml (string) {
  10693. return String(string).replace(/[&<>"'`=\/]/g, function fromEntityMap (s) {
  10694. return entityMap[s];
  10695. });
  10696. }
  10697. var whiteRe = /\s*/;
  10698. var spaceRe = /\s+/;
  10699. var equalsRe = /\s*=/;
  10700. var curlyRe = /\s*\}/;
  10701. var tagRe = /#|\^|\/|>|\{|&|=|!/;
  10702. /**
  10703. * Breaks up the given `template` string into a tree of tokens. If the `tags`
  10704. * argument is given here it must be an array with two string values: the
  10705. * opening and closing tags used in the template (e.g. [ "<%", "%>" ]). Of
  10706. * course, the default is to use mustaches (i.e. mustache.tags).
  10707. *
  10708. * A token is an array with at least 4 elements. The first element is the
  10709. * mustache symbol that was used inside the tag, e.g. "#" or "&". If the tag
  10710. * did not contain a symbol (i.e. {{myValue}}) this element is "name". For
  10711. * all text that appears outside a symbol this element is "text".
  10712. *
  10713. * The second element of a token is its "value". For mustache tags this is
  10714. * whatever else was inside the tag besides the opening symbol. For text tokens
  10715. * this is the text itself.
  10716. *
  10717. * The third and fourth elements of the token are the start and end indices,
  10718. * respectively, of the token in the original template.
  10719. *
  10720. * Tokens that are the root node of a subtree contain two more elements: 1) an
  10721. * array of tokens in the subtree and 2) the index in the original template at
  10722. * which the closing tag for that section begins.
  10723. */
  10724. function parseTemplate (template, tags) {
  10725. if (!template)
  10726. return [];
  10727. var sections = []; // Stack to hold section tokens
  10728. var tokens = []; // Buffer to hold the tokens
  10729. var spaces = []; // Indices of whitespace tokens on the current line
  10730. var hasTag = false; // Is there a {{tag}} on the current line?
  10731. var nonSpace = false; // Is there a non-space char on the current line?
  10732. // Strips all whitespace tokens array for the current line
  10733. // if there was a {{#tag}} on it and otherwise only space.
  10734. function stripSpace () {
  10735. if (hasTag && !nonSpace) {
  10736. while (spaces.length)
  10737. delete tokens[spaces.pop()];
  10738. } else {
  10739. spaces = [];
  10740. }
  10741. hasTag = false;
  10742. nonSpace = false;
  10743. }
  10744. var openingTagRe, closingTagRe, closingCurlyRe;
  10745. function compileTags (tagsToCompile) {
  10746. if (typeof tagsToCompile === 'string')
  10747. tagsToCompile = tagsToCompile.split(spaceRe, 2);
  10748. if (!isArray(tagsToCompile) || tagsToCompile.length !== 2)
  10749. throw new Error('Invalid tags: ' + tagsToCompile);
  10750. openingTagRe = new RegExp(escapeRegExp(tagsToCompile[0]) + '\\s*');
  10751. closingTagRe = new RegExp('\\s*' + escapeRegExp(tagsToCompile[1]));
  10752. closingCurlyRe = new RegExp('\\s*' + escapeRegExp('}' + tagsToCompile[1]));
  10753. }
  10754. compileTags(tags || mustache.tags);
  10755. var scanner = new Scanner(template);
  10756. var start, type, value, chr, token, openSection;
  10757. while (!scanner.eos()) {
  10758. start = scanner.pos;
  10759. // Match any text between tags.
  10760. value = scanner.scanUntil(openingTagRe);
  10761. if (value) {
  10762. for (var i = 0, valueLength = value.length; i < valueLength; ++i) {
  10763. chr = value.charAt(i);
  10764. if (isWhitespace(chr)) {
  10765. spaces.push(tokens.length);
  10766. } else {
  10767. nonSpace = true;
  10768. }
  10769. tokens.push([ 'text', chr, start, start + 1 ]);
  10770. start += 1;
  10771. // Check for whitespace on the current line.
  10772. if (chr === '\n')
  10773. stripSpace();
  10774. }
  10775. }
  10776. // Match the opening tag.
  10777. if (!scanner.scan(openingTagRe))
  10778. break;
  10779. hasTag = true;
  10780. // Get the tag type.
  10781. type = scanner.scan(tagRe) || 'name';
  10782. scanner.scan(whiteRe);
  10783. // Get the tag value.
  10784. if (type === '=') {
  10785. value = scanner.scanUntil(equalsRe);
  10786. scanner.scan(equalsRe);
  10787. scanner.scanUntil(closingTagRe);
  10788. } else if (type === '{') {
  10789. value = scanner.scanUntil(closingCurlyRe);
  10790. scanner.scan(curlyRe);
  10791. scanner.scanUntil(closingTagRe);
  10792. type = '&';
  10793. } else {
  10794. value = scanner.scanUntil(closingTagRe);
  10795. }
  10796. // Match the closing tag.
  10797. if (!scanner.scan(closingTagRe))
  10798. throw new Error('Unclosed tag at ' + scanner.pos);
  10799. token = [ type, value, start, scanner.pos ];
  10800. tokens.push(token);
  10801. if (type === '#' || type === '^') {
  10802. sections.push(token);
  10803. } else if (type === '/') {
  10804. // Check section nesting.
  10805. openSection = sections.pop();
  10806. if (!openSection)
  10807. throw new Error('Unopened section "' + value + '" at ' + start);
  10808. if (openSection[1] !== value)
  10809. throw new Error('Unclosed section "' + openSection[1] + '" at ' + start);
  10810. } else if (type === 'name' || type === '{' || type === '&') {
  10811. nonSpace = true;
  10812. } else if (type === '=') {
  10813. // Set the tags for the next time around.
  10814. compileTags(value);
  10815. }
  10816. }
  10817. // Make sure there are no open sections when we're done.
  10818. openSection = sections.pop();
  10819. if (openSection)
  10820. throw new Error('Unclosed section "' + openSection[1] + '" at ' + scanner.pos);
  10821. return nestTokens(squashTokens(tokens));
  10822. }
  10823. /**
  10824. * Combines the values of consecutive text tokens in the given `tokens` array
  10825. * to a single token.
  10826. */
  10827. function squashTokens (tokens) {
  10828. var squashedTokens = [];
  10829. var token, lastToken;
  10830. for (var i = 0, numTokens = tokens.length; i < numTokens; ++i) {
  10831. token = tokens[i];
  10832. if (token) {
  10833. if (token[0] === 'text' && lastToken && lastToken[0] === 'text') {
  10834. lastToken[1] += token[1];
  10835. lastToken[3] = token[3];
  10836. } else {
  10837. squashedTokens.push(token);
  10838. lastToken = token;
  10839. }
  10840. }
  10841. }
  10842. return squashedTokens;
  10843. }
  10844. /**
  10845. * Forms the given array of `tokens` into a nested tree structure where
  10846. * tokens that represent a section have two additional items: 1) an array of
  10847. * all tokens that appear in that section and 2) the index in the original
  10848. * template that represents the end of that section.
  10849. */
  10850. function nestTokens (tokens) {
  10851. var nestedTokens = [];
  10852. var collector = nestedTokens;
  10853. var sections = [];
  10854. var token, section;
  10855. for (var i = 0, numTokens = tokens.length; i < numTokens; ++i) {
  10856. token = tokens[i];
  10857. switch (token[0]) {
  10858. case '#':
  10859. case '^':
  10860. collector.push(token);
  10861. sections.push(token);
  10862. collector = token[4] = [];
  10863. break;
  10864. case '/':
  10865. section = sections.pop();
  10866. section[5] = token[2];
  10867. collector = sections.length > 0 ? sections[sections.length - 1][4] : nestedTokens;
  10868. break;
  10869. default:
  10870. collector.push(token);
  10871. }
  10872. }
  10873. return nestedTokens;
  10874. }
  10875. /**
  10876. * A simple string scanner that is used by the template parser to find
  10877. * tokens in template strings.
  10878. */
  10879. function Scanner (string) {
  10880. this.string = string;
  10881. this.tail = string;
  10882. this.pos = 0;
  10883. }
  10884. /**
  10885. * Returns `true` if the tail is empty (end of string).
  10886. */
  10887. Scanner.prototype.eos = function eos () {
  10888. return this.tail === '';
  10889. };
  10890. /**
  10891. * Tries to match the given regular expression at the current position.
  10892. * Returns the matched text if it can match, the empty string otherwise.
  10893. */
  10894. Scanner.prototype.scan = function scan (re) {
  10895. var match = this.tail.match(re);
  10896. if (!match || match.index !== 0)
  10897. return '';
  10898. var string = match[0];
  10899. this.tail = this.tail.substring(string.length);
  10900. this.pos += string.length;
  10901. return string;
  10902. };
  10903. /**
  10904. * Skips all text until the given regular expression can be matched. Returns
  10905. * the skipped string, which is the entire tail if no match can be made.
  10906. */
  10907. Scanner.prototype.scanUntil = function scanUntil (re) {
  10908. var index = this.tail.search(re), match;
  10909. switch (index) {
  10910. case -1:
  10911. match = this.tail;
  10912. this.tail = '';
  10913. break;
  10914. case 0:
  10915. match = '';
  10916. break;
  10917. default:
  10918. match = this.tail.substring(0, index);
  10919. this.tail = this.tail.substring(index);
  10920. }
  10921. this.pos += match.length;
  10922. return match;
  10923. };
  10924. /**
  10925. * Represents a rendering context by wrapping a view object and
  10926. * maintaining a reference to the parent context.
  10927. */
  10928. function Context (view, parentContext) {
  10929. this.view = view;
  10930. this.cache = { '.': this.view };
  10931. this.parent = parentContext;
  10932. }
  10933. /**
  10934. * Creates a new context using the given view with this context
  10935. * as the parent.
  10936. */
  10937. Context.prototype.push = function push (view) {
  10938. return new Context(view, this);
  10939. };
  10940. /**
  10941. * Returns the value of the given name in this context, traversing
  10942. * up the context hierarchy if the value is absent in this context's view.
  10943. */
  10944. Context.prototype.lookup = function lookup (name) {
  10945. var cache = this.cache;
  10946. var value;
  10947. if (cache.hasOwnProperty(name)) {
  10948. value = cache[name];
  10949. } else {
  10950. var context = this, names, index, lookupHit = false;
  10951. while (context) {
  10952. if (name.indexOf('.') > 0) {
  10953. value = context.view;
  10954. names = name.split('.');
  10955. index = 0;
  10956. /**
  10957. * Using the dot notion path in `name`, we descend through the
  10958. * nested objects.
  10959. *
  10960. * To be certain that the lookup has been successful, we have to
  10961. * check if the last object in the path actually has the property
  10962. * we are looking for. We store the result in `lookupHit`.
  10963. *
  10964. * This is specially necessary for when the value has been set to
  10965. * `undefined` and we want to avoid looking up parent contexts.
  10966. **/
  10967. while (value != null && index < names.length) {
  10968. if (index === names.length - 1)
  10969. lookupHit = hasProperty(value, names[index]);
  10970. value = value[names[index++]];
  10971. }
  10972. } else {
  10973. value = context.view[name];
  10974. lookupHit = hasProperty(context.view, name);
  10975. }
  10976. if (lookupHit)
  10977. break;
  10978. context = context.parent;
  10979. }
  10980. cache[name] = value;
  10981. }
  10982. if (isFunction(value))
  10983. value = value.call(this.view);
  10984. return value;
  10985. };
  10986. /**
  10987. * A Writer knows how to take a stream of tokens and render them to a
  10988. * string, given a context. It also maintains a cache of templates to
  10989. * avoid the need to parse the same template twice.
  10990. */
  10991. function Writer () {
  10992. this.cache = {};
  10993. }
  10994. /**
  10995. * Clears all cached templates in this writer.
  10996. */
  10997. Writer.prototype.clearCache = function clearCache () {
  10998. this.cache = {};
  10999. };
  11000. /**
  11001. * Parses and caches the given `template` and returns the array of tokens
  11002. * that is generated from the parse.
  11003. */
  11004. Writer.prototype.parse = function parse (template, tags) {
  11005. var cache = this.cache;
  11006. var tokens = cache[template];
  11007. if (tokens == null)
  11008. tokens = cache[template] = parseTemplate(template, tags);
  11009. return tokens;
  11010. };
  11011. /**
  11012. * High-level method that is used to render the given `template` with
  11013. * the given `view`.
  11014. *
  11015. * The optional `partials` argument may be an object that contains the
  11016. * names and templates of partials that are used in the template. It may
  11017. * also be a function that is used to load partial templates on the fly
  11018. * that takes a single argument: the name of the partial.
  11019. */
  11020. Writer.prototype.render = function render (template, view, partials) {
  11021. var tokens = this.parse(template);
  11022. var context = (view instanceof Context) ? view : new Context(view);
  11023. return this.renderTokens(tokens, context, partials, template);
  11024. };
  11025. /**
  11026. * Low-level method that renders the given array of `tokens` using
  11027. * the given `context` and `partials`.
  11028. *
  11029. * Note: The `originalTemplate` is only ever used to extract the portion
  11030. * of the original template that was contained in a higher-order section.
  11031. * If the template doesn't use higher-order sections, this argument may
  11032. * be omitted.
  11033. */
  11034. Writer.prototype.renderTokens = function renderTokens (tokens, context, partials, originalTemplate) {
  11035. var buffer = '';
  11036. var token, symbol, value;
  11037. for (var i = 0, numTokens = tokens.length; i < numTokens; ++i) {
  11038. value = undefined;
  11039. token = tokens[i];
  11040. symbol = token[0];
  11041. if (symbol === '#') value = this.renderSection(token, context, partials, originalTemplate);
  11042. else if (symbol === '^') value = this.renderInverted(token, context, partials, originalTemplate);
  11043. else if (symbol === '>') value = this.renderPartial(token, context, partials, originalTemplate);
  11044. else if (symbol === '&') value = this.unescapedValue(token, context);
  11045. else if (symbol === 'name') value = this.escapedValue(token, context);
  11046. else if (symbol === 'text') value = this.rawValue(token);
  11047. if (value !== undefined)
  11048. buffer += value;
  11049. }
  11050. return buffer;
  11051. };
  11052. Writer.prototype.renderSection = function renderSection (token, context, partials, originalTemplate) {
  11053. var self = this;
  11054. var buffer = '';
  11055. var value = context.lookup(token[1]);
  11056. // This function is used to render an arbitrary template
  11057. // in the current context by higher-order sections.
  11058. function subRender (template) {
  11059. return self.render(template, context, partials);
  11060. }
  11061. if (!value) return;
  11062. if (isArray(value)) {
  11063. for (var j = 0, valueLength = value.length; j < valueLength; ++j) {
  11064. buffer += this.renderTokens(token[4], context.push(value[j]), partials, originalTemplate);
  11065. }
  11066. } else if (typeof value === 'object' || typeof value === 'string' || typeof value === 'number') {
  11067. buffer += this.renderTokens(token[4], context.push(value), partials, originalTemplate);
  11068. } else if (isFunction(value)) {
  11069. if (typeof originalTemplate !== 'string')
  11070. throw new Error('Cannot use higher-order sections without the original template');
  11071. // Extract the portion of the original template that the section contains.
  11072. value = value.call(context.view, originalTemplate.slice(token[3], token[5]), subRender);
  11073. if (value != null)
  11074. buffer += value;
  11075. } else {
  11076. buffer += this.renderTokens(token[4], context, partials, originalTemplate);
  11077. }
  11078. return buffer;
  11079. };
  11080. Writer.prototype.renderInverted = function renderInverted (token, context, partials, originalTemplate) {
  11081. var value = context.lookup(token[1]);
  11082. // Use JavaScript's definition of falsy. Include empty arrays.
  11083. // See https://github.com/janl/mustache.js/issues/186
  11084. if (!value || (isArray(value) && value.length === 0))
  11085. return this.renderTokens(token[4], context, partials, originalTemplate);
  11086. };
  11087. Writer.prototype.renderPartial = function renderPartial (token, context, partials) {
  11088. if (!partials) return;
  11089. var value = isFunction(partials) ? partials(token[1]) : partials[token[1]];
  11090. if (value != null)
  11091. return this.renderTokens(this.parse(value), context, partials, value);
  11092. };
  11093. Writer.prototype.unescapedValue = function unescapedValue (token, context) {
  11094. var value = context.lookup(token[1]);
  11095. if (value != null)
  11096. return value;
  11097. };
  11098. Writer.prototype.escapedValue = function escapedValue (token, context) {
  11099. var value = context.lookup(token[1]);
  11100. if (value != null)
  11101. return mustache.escape(value);
  11102. };
  11103. Writer.prototype.rawValue = function rawValue (token) {
  11104. return token[1];
  11105. };
  11106. mustache.name = 'mustache.js';
  11107. mustache.version = '2.2.1';
  11108. mustache.tags = [ '{{', '}}' ];
  11109. // All high-level mustache.* functions use this writer.
  11110. var defaultWriter = new Writer();
  11111. /**
  11112. * Clears all cached templates in the default writer.
  11113. */
  11114. mustache.clearCache = function clearCache () {
  11115. return defaultWriter.clearCache();
  11116. };
  11117. /**
  11118. * Parses and caches the given template in the default writer and returns the
  11119. * array of tokens it contains. Doing this ahead of time avoids the need to
  11120. * parse templates on the fly as they are rendered.
  11121. */
  11122. mustache.parse = function parse (template, tags) {
  11123. return defaultWriter.parse(template, tags);
  11124. };
  11125. /**
  11126. * Renders the `template` with the given `view` and `partials` using the
  11127. * default writer.
  11128. */
  11129. mustache.render = function render (template, view, partials) {
  11130. if (typeof template !== 'string') {
  11131. throw new TypeError('Invalid template! Template should be a "string" ' +
  11132. 'but "' + typeStr(template) + '" was given as the first ' +
  11133. 'argument for mustache#render(template, view, partials)');
  11134. }
  11135. return defaultWriter.render(template, view, partials);
  11136. };
  11137. // This is here for backwards compatibility with 0.4.x.,
  11138. /*eslint-disable */ // eslint wants camel cased function name
  11139. mustache.to_html = function to_html (template, view, partials, send) {
  11140. /*eslint-enable*/
  11141. var result = mustache.render(template, view, partials);
  11142. if (isFunction(send)) {
  11143. send(result);
  11144. } else {
  11145. return result;
  11146. }
  11147. };
  11148. // Export the escaping function so that the user may override it.
  11149. // See https://github.com/janl/mustache.js/issues/244
  11150. mustache.escape = escapeHtml;
  11151. // Export these mainly for testing, but also for advanced usage.
  11152. mustache.Scanner = Scanner;
  11153. mustache.Context = Context;
  11154. mustache.Writer = Writer;
  11155. }));
  11156. },{}],5:[function(require,module,exports){
  11157. var html_sanitize = require('./sanitizer-bundle.js');
  11158. module.exports = function(_) {
  11159. if (!_) return '';
  11160. return html_sanitize(_, cleanUrl, cleanId);
  11161. };
  11162. // https://bugzilla.mozilla.org/show_bug.cgi?id=255107
  11163. function cleanUrl(url) {
  11164. 'use strict';
  11165. if (/^https?/.test(url.getScheme())) return url.toString();
  11166. if (/^mailto?/.test(url.getScheme())) return url.toString();
  11167. if ('data' == url.getScheme() && /^image/.test(url.getPath())) {
  11168. return url.toString();
  11169. }
  11170. }
  11171. function cleanId(id) { return id; }
  11172. },{"./sanitizer-bundle.js":6}],6:[function(require,module,exports){
  11173. // Copyright (C) 2010 Google Inc.
  11174. //
  11175. // Licensed under the Apache License, Version 2.0 (the "License");
  11176. // you may not use this file except in compliance with the License.
  11177. // You may obtain a copy of the License at
  11178. //
  11179. // http://www.apache.org/licenses/LICENSE-2.0
  11180. //
  11181. // Unless required by applicable law or agreed to in writing, software
  11182. // distributed under the License is distributed on an "AS IS" BASIS,
  11183. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  11184. // See the License for the specific language governing permissions and
  11185. // limitations under the License.
  11186. /**
  11187. * @fileoverview
  11188. * Implements RFC 3986 for parsing/formatting URIs.
  11189. *
  11190. * @author mikesamuel@gmail.com
  11191. * \@provides URI
  11192. * \@overrides window
  11193. */
  11194. var URI = (function () {
  11195. /**
  11196. * creates a uri from the string form. The parser is relaxed, so special
  11197. * characters that aren't escaped but don't cause ambiguities will not cause
  11198. * parse failures.
  11199. *
  11200. * @return {URI|null}
  11201. */
  11202. function parse(uriStr) {
  11203. var m = ('' + uriStr).match(URI_RE_);
  11204. if (!m) { return null; }
  11205. return new URI(
  11206. nullIfAbsent(m[1]),
  11207. nullIfAbsent(m[2]),
  11208. nullIfAbsent(m[3]),
  11209. nullIfAbsent(m[4]),
  11210. nullIfAbsent(m[5]),
  11211. nullIfAbsent(m[6]),
  11212. nullIfAbsent(m[7]));
  11213. }
  11214. /**
  11215. * creates a uri from the given parts.
  11216. *
  11217. * @param scheme {string} an unencoded scheme such as "http" or null
  11218. * @param credentials {string} unencoded user credentials or null
  11219. * @param domain {string} an unencoded domain name or null
  11220. * @param port {number} a port number in [1, 32768].
  11221. * -1 indicates no port, as does null.
  11222. * @param path {string} an unencoded path
  11223. * @param query {Array.<string>|string|null} a list of unencoded cgi
  11224. * parameters where even values are keys and odds the corresponding values
  11225. * or an unencoded query.
  11226. * @param fragment {string} an unencoded fragment without the "#" or null.
  11227. * @return {URI}
  11228. */
  11229. function create(scheme, credentials, domain, port, path, query, fragment) {
  11230. var uri = new URI(
  11231. encodeIfExists2(scheme, URI_DISALLOWED_IN_SCHEME_OR_CREDENTIALS_),
  11232. encodeIfExists2(
  11233. credentials, URI_DISALLOWED_IN_SCHEME_OR_CREDENTIALS_),
  11234. encodeIfExists(domain),
  11235. port > 0 ? port.toString() : null,
  11236. encodeIfExists2(path, URI_DISALLOWED_IN_PATH_),
  11237. null,
  11238. encodeIfExists(fragment));
  11239. if (query) {
  11240. if ('string' === typeof query) {
  11241. uri.setRawQuery(query.replace(/[^?&=0-9A-Za-z_\-~.%]/g, encodeOne));
  11242. } else {
  11243. uri.setAllParameters(query);
  11244. }
  11245. }
  11246. return uri;
  11247. }
  11248. function encodeIfExists(unescapedPart) {
  11249. if ('string' == typeof unescapedPart) {
  11250. return encodeURIComponent(unescapedPart);
  11251. }
  11252. return null;
  11253. };
  11254. /**
  11255. * if unescapedPart is non null, then escapes any characters in it that aren't
  11256. * valid characters in a url and also escapes any special characters that
  11257. * appear in extra.
  11258. *
  11259. * @param unescapedPart {string}
  11260. * @param extra {RegExp} a character set of characters in [\01-\177].
  11261. * @return {string|null} null iff unescapedPart == null.
  11262. */
  11263. function encodeIfExists2(unescapedPart, extra) {
  11264. if ('string' == typeof unescapedPart) {
  11265. return encodeURI(unescapedPart).replace(extra, encodeOne);
  11266. }
  11267. return null;
  11268. };
  11269. /** converts a character in [\01-\177] to its url encoded equivalent. */
  11270. function encodeOne(ch) {
  11271. var n = ch.charCodeAt(0);
  11272. return '%' + '0123456789ABCDEF'.charAt((n >> 4) & 0xf) +
  11273. '0123456789ABCDEF'.charAt(n & 0xf);
  11274. }
  11275. /**
  11276. * {@updoc
  11277. * $ normPath('foo/./bar')
  11278. * # 'foo/bar'
  11279. * $ normPath('./foo')
  11280. * # 'foo'
  11281. * $ normPath('foo/.')
  11282. * # 'foo'
  11283. * $ normPath('foo//bar')
  11284. * # 'foo/bar'
  11285. * }
  11286. */
  11287. function normPath(path) {
  11288. return path.replace(/(^|\/)\.(?:\/|$)/g, '$1').replace(/\/{2,}/g, '/');
  11289. }
  11290. var PARENT_DIRECTORY_HANDLER = new RegExp(
  11291. ''
  11292. // A path break
  11293. + '(/|^)'
  11294. // followed by a non .. path element
  11295. // (cannot be . because normPath is used prior to this RegExp)
  11296. + '(?:[^./][^/]*|\\.{2,}(?:[^./][^/]*)|\\.{3,}[^/]*)'
  11297. // followed by .. followed by a path break.
  11298. + '/\\.\\.(?:/|$)');
  11299. var PARENT_DIRECTORY_HANDLER_RE = new RegExp(PARENT_DIRECTORY_HANDLER);
  11300. var EXTRA_PARENT_PATHS_RE = /^(?:\.\.\/)*(?:\.\.$)?/;
  11301. /**
  11302. * Normalizes its input path and collapses all . and .. sequences except for
  11303. * .. sequences that would take it above the root of the current parent
  11304. * directory.
  11305. * {@updoc
  11306. * $ collapse_dots('foo/../bar')
  11307. * # 'bar'
  11308. * $ collapse_dots('foo/./bar')
  11309. * # 'foo/bar'
  11310. * $ collapse_dots('foo/../bar/./../../baz')
  11311. * # 'baz'
  11312. * $ collapse_dots('../foo')
  11313. * # '../foo'
  11314. * $ collapse_dots('../foo').replace(EXTRA_PARENT_PATHS_RE, '')
  11315. * # 'foo'
  11316. * }
  11317. */
  11318. function collapse_dots(path) {
  11319. if (path === null) { return null; }
  11320. var p = normPath(path);
  11321. // Only /../ left to flatten
  11322. var r = PARENT_DIRECTORY_HANDLER_RE;
  11323. // We replace with $1 which matches a / before the .. because this
  11324. // guarantees that:
  11325. // (1) we have at most 1 / between the adjacent place,
  11326. // (2) always have a slash if there is a preceding path section, and
  11327. // (3) we never turn a relative path into an absolute path.
  11328. for (var q; (q = p.replace(r, '$1')) != p; p = q) {};
  11329. return p;
  11330. }
  11331. /**
  11332. * resolves a relative url string to a base uri.
  11333. * @return {URI}
  11334. */
  11335. function resolve(baseUri, relativeUri) {
  11336. // there are several kinds of relative urls:
  11337. // 1. //foo - replaces everything from the domain on. foo is a domain name
  11338. // 2. foo - replaces the last part of the path, the whole query and fragment
  11339. // 3. /foo - replaces the the path, the query and fragment
  11340. // 4. ?foo - replace the query and fragment
  11341. // 5. #foo - replace the fragment only
  11342. var absoluteUri = baseUri.clone();
  11343. // we satisfy these conditions by looking for the first part of relativeUri
  11344. // that is not blank and applying defaults to the rest
  11345. var overridden = relativeUri.hasScheme();
  11346. if (overridden) {
  11347. absoluteUri.setRawScheme(relativeUri.getRawScheme());
  11348. } else {
  11349. overridden = relativeUri.hasCredentials();
  11350. }
  11351. if (overridden) {
  11352. absoluteUri.setRawCredentials(relativeUri.getRawCredentials());
  11353. } else {
  11354. overridden = relativeUri.hasDomain();
  11355. }
  11356. if (overridden) {
  11357. absoluteUri.setRawDomain(relativeUri.getRawDomain());
  11358. } else {
  11359. overridden = relativeUri.hasPort();
  11360. }
  11361. var rawPath = relativeUri.getRawPath();
  11362. var simplifiedPath = collapse_dots(rawPath);
  11363. if (overridden) {
  11364. absoluteUri.setPort(relativeUri.getPort());
  11365. simplifiedPath = simplifiedPath
  11366. && simplifiedPath.replace(EXTRA_PARENT_PATHS_RE, '');
  11367. } else {
  11368. overridden = !!rawPath;
  11369. if (overridden) {
  11370. // resolve path properly
  11371. if (simplifiedPath.charCodeAt(0) !== 0x2f /* / */) { // path is relative
  11372. var absRawPath = collapse_dots(absoluteUri.getRawPath() || '')
  11373. .replace(EXTRA_PARENT_PATHS_RE, '');
  11374. var slash = absRawPath.lastIndexOf('/') + 1;
  11375. simplifiedPath = collapse_dots(
  11376. (slash ? absRawPath.substring(0, slash) : '')
  11377. + collapse_dots(rawPath))
  11378. .replace(EXTRA_PARENT_PATHS_RE, '');
  11379. }
  11380. } else {
  11381. simplifiedPath = simplifiedPath
  11382. && simplifiedPath.replace(EXTRA_PARENT_PATHS_RE, '');
  11383. if (simplifiedPath !== rawPath) {
  11384. absoluteUri.setRawPath(simplifiedPath);
  11385. }
  11386. }
  11387. }
  11388. if (overridden) {
  11389. absoluteUri.setRawPath(simplifiedPath);
  11390. } else {
  11391. overridden = relativeUri.hasQuery();
  11392. }
  11393. if (overridden) {
  11394. absoluteUri.setRawQuery(relativeUri.getRawQuery());
  11395. } else {
  11396. overridden = relativeUri.hasFragment();
  11397. }
  11398. if (overridden) {
  11399. absoluteUri.setRawFragment(relativeUri.getRawFragment());
  11400. }
  11401. return absoluteUri;
  11402. }
  11403. /**
  11404. * a mutable URI.
  11405. *
  11406. * This class contains setters and getters for the parts of the URI.
  11407. * The <tt>getXYZ</tt>/<tt>setXYZ</tt> methods return the decoded part -- so
  11408. * <code>uri.parse('/foo%20bar').getPath()</code> will return the decoded path,
  11409. * <tt>/foo bar</tt>.
  11410. *
  11411. * <p>The raw versions of fields are available too.
  11412. * <code>uri.parse('/foo%20bar').getRawPath()</code> will return the raw path,
  11413. * <tt>/foo%20bar</tt>. Use the raw setters with care, since
  11414. * <code>URI::toString</code> is not guaranteed to return a valid url if a
  11415. * raw setter was used.
  11416. *
  11417. * <p>All setters return <tt>this</tt> and so may be chained, a la
  11418. * <code>uri.parse('/foo').setFragment('part').toString()</code>.
  11419. *
  11420. * <p>You should not use this constructor directly -- please prefer the factory
  11421. * functions {@link uri.parse}, {@link uri.create}, {@link uri.resolve}
  11422. * instead.</p>
  11423. *
  11424. * <p>The parameters are all raw (assumed to be properly escaped) parts, and
  11425. * any (but not all) may be null. Undefined is not allowed.</p>
  11426. *
  11427. * @constructor
  11428. */
  11429. function URI(
  11430. rawScheme,
  11431. rawCredentials, rawDomain, port,
  11432. rawPath, rawQuery, rawFragment) {
  11433. this.scheme_ = rawScheme;
  11434. this.credentials_ = rawCredentials;
  11435. this.domain_ = rawDomain;
  11436. this.port_ = port;
  11437. this.path_ = rawPath;
  11438. this.query_ = rawQuery;
  11439. this.fragment_ = rawFragment;
  11440. /**
  11441. * @type {Array|null}
  11442. */
  11443. this.paramCache_ = null;
  11444. }
  11445. /** returns the string form of the url. */
  11446. URI.prototype.toString = function () {
  11447. var out = [];
  11448. if (null !== this.scheme_) { out.push(this.scheme_, ':'); }
  11449. if (null !== this.domain_) {
  11450. out.push('//');
  11451. if (null !== this.credentials_) { out.push(this.credentials_, '@'); }
  11452. out.push(this.domain_);
  11453. if (null !== this.port_) { out.push(':', this.port_.toString()); }
  11454. }
  11455. if (null !== this.path_) { out.push(this.path_); }
  11456. if (null !== this.query_) { out.push('?', this.query_); }
  11457. if (null !== this.fragment_) { out.push('#', this.fragment_); }
  11458. return out.join('');
  11459. };
  11460. URI.prototype.clone = function () {
  11461. return new URI(this.scheme_, this.credentials_, this.domain_, this.port_,
  11462. this.path_, this.query_, this.fragment_);
  11463. };
  11464. URI.prototype.getScheme = function () {
  11465. // HTML5 spec does not require the scheme to be lowercased but
  11466. // all common browsers except Safari lowercase the scheme.
  11467. return this.scheme_ && decodeURIComponent(this.scheme_).toLowerCase();
  11468. };
  11469. URI.prototype.getRawScheme = function () {
  11470. return this.scheme_;
  11471. };
  11472. URI.prototype.setScheme = function (newScheme) {
  11473. this.scheme_ = encodeIfExists2(
  11474. newScheme, URI_DISALLOWED_IN_SCHEME_OR_CREDENTIALS_);
  11475. return this;
  11476. };
  11477. URI.prototype.setRawScheme = function (newScheme) {
  11478. this.scheme_ = newScheme ? newScheme : null;
  11479. return this;
  11480. };
  11481. URI.prototype.hasScheme = function () {
  11482. return null !== this.scheme_;
  11483. };
  11484. URI.prototype.getCredentials = function () {
  11485. return this.credentials_ && decodeURIComponent(this.credentials_);
  11486. };
  11487. URI.prototype.getRawCredentials = function () {
  11488. return this.credentials_;
  11489. };
  11490. URI.prototype.setCredentials = function (newCredentials) {
  11491. this.credentials_ = encodeIfExists2(
  11492. newCredentials, URI_DISALLOWED_IN_SCHEME_OR_CREDENTIALS_);
  11493. return this;
  11494. };
  11495. URI.prototype.setRawCredentials = function (newCredentials) {
  11496. this.credentials_ = newCredentials ? newCredentials : null;
  11497. return this;
  11498. };
  11499. URI.prototype.hasCredentials = function () {
  11500. return null !== this.credentials_;
  11501. };
  11502. URI.prototype.getDomain = function () {
  11503. return this.domain_ && decodeURIComponent(this.domain_);
  11504. };
  11505. URI.prototype.getRawDomain = function () {
  11506. return this.domain_;
  11507. };
  11508. URI.prototype.setDomain = function (newDomain) {
  11509. return this.setRawDomain(newDomain && encodeURIComponent(newDomain));
  11510. };
  11511. URI.prototype.setRawDomain = function (newDomain) {
  11512. this.domain_ = newDomain ? newDomain : null;
  11513. // Maintain the invariant that paths must start with a slash when the URI
  11514. // is not path-relative.
  11515. return this.setRawPath(this.path_);
  11516. };
  11517. URI.prototype.hasDomain = function () {
  11518. return null !== this.domain_;
  11519. };
  11520. URI.prototype.getPort = function () {
  11521. return this.port_ && decodeURIComponent(this.port_);
  11522. };
  11523. URI.prototype.setPort = function (newPort) {
  11524. if (newPort) {
  11525. newPort = Number(newPort);
  11526. if (newPort !== (newPort & 0xffff)) {
  11527. throw new Error('Bad port number ' + newPort);
  11528. }
  11529. this.port_ = '' + newPort;
  11530. } else {
  11531. this.port_ = null;
  11532. }
  11533. return this;
  11534. };
  11535. URI.prototype.hasPort = function () {
  11536. return null !== this.port_;
  11537. };
  11538. URI.prototype.getPath = function () {
  11539. return this.path_ && decodeURIComponent(this.path_);
  11540. };
  11541. URI.prototype.getRawPath = function () {
  11542. return this.path_;
  11543. };
  11544. URI.prototype.setPath = function (newPath) {
  11545. return this.setRawPath(encodeIfExists2(newPath, URI_DISALLOWED_IN_PATH_));
  11546. };
  11547. URI.prototype.setRawPath = function (newPath) {
  11548. if (newPath) {
  11549. newPath = String(newPath);
  11550. this.path_ =
  11551. // Paths must start with '/' unless this is a path-relative URL.
  11552. (!this.domain_ || /^\//.test(newPath)) ? newPath : '/' + newPath;
  11553. } else {
  11554. this.path_ = null;
  11555. }
  11556. return this;
  11557. };
  11558. URI.prototype.hasPath = function () {
  11559. return null !== this.path_;
  11560. };
  11561. URI.prototype.getQuery = function () {
  11562. // From http://www.w3.org/Addressing/URL/4_URI_Recommentations.html
  11563. // Within the query string, the plus sign is reserved as shorthand notation
  11564. // for a space.
  11565. return this.query_ && decodeURIComponent(this.query_).replace(/\+/g, ' ');
  11566. };
  11567. URI.prototype.getRawQuery = function () {
  11568. return this.query_;
  11569. };
  11570. URI.prototype.setQuery = function (newQuery) {
  11571. this.paramCache_ = null;
  11572. this.query_ = encodeIfExists(newQuery);
  11573. return this;
  11574. };
  11575. URI.prototype.setRawQuery = function (newQuery) {
  11576. this.paramCache_ = null;
  11577. this.query_ = newQuery ? newQuery : null;
  11578. return this;
  11579. };
  11580. URI.prototype.hasQuery = function () {
  11581. return null !== this.query_;
  11582. };
  11583. /**
  11584. * sets the query given a list of strings of the form
  11585. * [ key0, value0, key1, value1, ... ].
  11586. *
  11587. * <p><code>uri.setAllParameters(['a', 'b', 'c', 'd']).getQuery()</code>
  11588. * will yield <code>'a=b&c=d'</code>.
  11589. */
  11590. URI.prototype.setAllParameters = function (params) {
  11591. if (typeof params === 'object') {
  11592. if (!(params instanceof Array)
  11593. && (params instanceof Object
  11594. || Object.prototype.toString.call(params) !== '[object Array]')) {
  11595. var newParams = [];
  11596. var i = -1;
  11597. for (var k in params) {
  11598. var v = params[k];
  11599. if ('string' === typeof v) {
  11600. newParams[++i] = k;
  11601. newParams[++i] = v;
  11602. }
  11603. }
  11604. params = newParams;
  11605. }
  11606. }
  11607. this.paramCache_ = null;
  11608. var queryBuf = [];
  11609. var separator = '';
  11610. for (var j = 0; j < params.length;) {
  11611. var k = params[j++];
  11612. var v = params[j++];
  11613. queryBuf.push(separator, encodeURIComponent(k.toString()));
  11614. separator = '&';
  11615. if (v) {
  11616. queryBuf.push('=', encodeURIComponent(v.toString()));
  11617. }
  11618. }
  11619. this.query_ = queryBuf.join('');
  11620. return this;
  11621. };
  11622. URI.prototype.checkParameterCache_ = function () {
  11623. if (!this.paramCache_) {
  11624. var q = this.query_;
  11625. if (!q) {
  11626. this.paramCache_ = [];
  11627. } else {
  11628. var cgiParams = q.split(/[&\?]/);
  11629. var out = [];
  11630. var k = -1;
  11631. for (var i = 0; i < cgiParams.length; ++i) {
  11632. var m = cgiParams[i].match(/^([^=]*)(?:=(.*))?$/);
  11633. // From http://www.w3.org/Addressing/URL/4_URI_Recommentations.html
  11634. // Within the query string, the plus sign is reserved as shorthand
  11635. // notation for a space.
  11636. out[++k] = decodeURIComponent(m[1]).replace(/\+/g, ' ');
  11637. out[++k] = decodeURIComponent(m[2] || '').replace(/\+/g, ' ');
  11638. }
  11639. this.paramCache_ = out;
  11640. }
  11641. }
  11642. };
  11643. /**
  11644. * sets the values of the named cgi parameters.
  11645. *
  11646. * <p>So, <code>uri.parse('foo?a=b&c=d&e=f').setParameterValues('c', ['new'])
  11647. * </code> yields <tt>foo?a=b&c=new&e=f</tt>.</p>
  11648. *
  11649. * @param key {string}
  11650. * @param values {Array.<string>} the new values. If values is a single string
  11651. * then it will be treated as the sole value.
  11652. */
  11653. URI.prototype.setParameterValues = function (key, values) {
  11654. // be nice and avoid subtle bugs where [] operator on string performs charAt
  11655. // on some browsers and crashes on IE
  11656. if (typeof values === 'string') {
  11657. values = [ values ];
  11658. }
  11659. this.checkParameterCache_();
  11660. var newValueIndex = 0;
  11661. var pc = this.paramCache_;
  11662. var params = [];
  11663. for (var i = 0, k = 0; i < pc.length; i += 2) {
  11664. if (key === pc[i]) {
  11665. if (newValueIndex < values.length) {
  11666. params.push(key, values[newValueIndex++]);
  11667. }
  11668. } else {
  11669. params.push(pc[i], pc[i + 1]);
  11670. }
  11671. }
  11672. while (newValueIndex < values.length) {
  11673. params.push(key, values[newValueIndex++]);
  11674. }
  11675. this.setAllParameters(params);
  11676. return this;
  11677. };
  11678. URI.prototype.removeParameter = function (key) {
  11679. return this.setParameterValues(key, []);
  11680. };
  11681. /**
  11682. * returns the parameters specified in the query part of the uri as a list of
  11683. * keys and values like [ key0, value0, key1, value1, ... ].
  11684. *
  11685. * @return {Array.<string>}
  11686. */
  11687. URI.prototype.getAllParameters = function () {
  11688. this.checkParameterCache_();
  11689. return this.paramCache_.slice(0, this.paramCache_.length);
  11690. };
  11691. /**
  11692. * returns the value<b>s</b> for a given cgi parameter as a list of decoded
  11693. * query parameter values.
  11694. * @return {Array.<string>}
  11695. */
  11696. URI.prototype.getParameterValues = function (paramNameUnescaped) {
  11697. this.checkParameterCache_();
  11698. var values = [];
  11699. for (var i = 0; i < this.paramCache_.length; i += 2) {
  11700. if (paramNameUnescaped === this.paramCache_[i]) {
  11701. values.push(this.paramCache_[i + 1]);
  11702. }
  11703. }
  11704. return values;
  11705. };
  11706. /**
  11707. * returns a map of cgi parameter names to (non-empty) lists of values.
  11708. * @return {Object.<string,Array.<string>>}
  11709. */
  11710. URI.prototype.getParameterMap = function (paramNameUnescaped) {
  11711. this.checkParameterCache_();
  11712. var paramMap = {};
  11713. for (var i = 0; i < this.paramCache_.length; i += 2) {
  11714. var key = this.paramCache_[i++],
  11715. value = this.paramCache_[i++];
  11716. if (!(key in paramMap)) {
  11717. paramMap[key] = [value];
  11718. } else {
  11719. paramMap[key].push(value);
  11720. }
  11721. }
  11722. return paramMap;
  11723. };
  11724. /**
  11725. * returns the first value for a given cgi parameter or null if the given
  11726. * parameter name does not appear in the query string.
  11727. * If the given parameter name does appear, but has no '<tt>=</tt>' following
  11728. * it, then the empty string will be returned.
  11729. * @return {string|null}
  11730. */
  11731. URI.prototype.getParameterValue = function (paramNameUnescaped) {
  11732. this.checkParameterCache_();
  11733. for (var i = 0; i < this.paramCache_.length; i += 2) {
  11734. if (paramNameUnescaped === this.paramCache_[i]) {
  11735. return this.paramCache_[i + 1];
  11736. }
  11737. }
  11738. return null;
  11739. };
  11740. URI.prototype.getFragment = function () {
  11741. return this.fragment_ && decodeURIComponent(this.fragment_);
  11742. };
  11743. URI.prototype.getRawFragment = function () {
  11744. return this.fragment_;
  11745. };
  11746. URI.prototype.setFragment = function (newFragment) {
  11747. this.fragment_ = newFragment ? encodeURIComponent(newFragment) : null;
  11748. return this;
  11749. };
  11750. URI.prototype.setRawFragment = function (newFragment) {
  11751. this.fragment_ = newFragment ? newFragment : null;
  11752. return this;
  11753. };
  11754. URI.prototype.hasFragment = function () {
  11755. return null !== this.fragment_;
  11756. };
  11757. function nullIfAbsent(matchPart) {
  11758. return ('string' == typeof matchPart) && (matchPart.length > 0)
  11759. ? matchPart
  11760. : null;
  11761. }
  11762. /**
  11763. * a regular expression for breaking a URI into its component parts.
  11764. *
  11765. * <p>http://www.gbiv.com/protocols/uri/rfc/rfc3986.html#RFC2234 says
  11766. * As the "first-match-wins" algorithm is identical to the "greedy"
  11767. * disambiguation method used by POSIX regular expressions, it is natural and
  11768. * commonplace to use a regular expression for parsing the potential five
  11769. * components of a URI reference.
  11770. *
  11771. * <p>The following line is the regular expression for breaking-down a
  11772. * well-formed URI reference into its components.
  11773. *
  11774. * <pre>
  11775. * ^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?
  11776. * 12 3 4 5 6 7 8 9
  11777. * </pre>
  11778. *
  11779. * <p>The numbers in the second line above are only to assist readability; they
  11780. * indicate the reference points for each subexpression (i.e., each paired
  11781. * parenthesis). We refer to the value matched for subexpression <n> as $<n>.
  11782. * For example, matching the above expression to
  11783. * <pre>
  11784. * http://www.ics.uci.edu/pub/ietf/uri/#Related
  11785. * </pre>
  11786. * results in the following subexpression matches:
  11787. * <pre>
  11788. * $1 = http:
  11789. * $2 = http
  11790. * $3 = //www.ics.uci.edu
  11791. * $4 = www.ics.uci.edu
  11792. * $5 = /pub/ietf/uri/
  11793. * $6 = <undefined>
  11794. * $7 = <undefined>
  11795. * $8 = #Related
  11796. * $9 = Related
  11797. * </pre>
  11798. * where <undefined> indicates that the component is not present, as is the
  11799. * case for the query component in the above example. Therefore, we can
  11800. * determine the value of the five components as
  11801. * <pre>
  11802. * scheme = $2
  11803. * authority = $4
  11804. * path = $5
  11805. * query = $7
  11806. * fragment = $9
  11807. * </pre>
  11808. *
  11809. * <p>msamuel: I have modified the regular expression slightly to expose the
  11810. * credentials, domain, and port separately from the authority.
  11811. * The modified version yields
  11812. * <pre>
  11813. * $1 = http scheme
  11814. * $2 = <undefined> credentials -\
  11815. * $3 = www.ics.uci.edu domain | authority
  11816. * $4 = <undefined> port -/
  11817. * $5 = /pub/ietf/uri/ path
  11818. * $6 = <undefined> query without ?
  11819. * $7 = Related fragment without #
  11820. * </pre>
  11821. */
  11822. var URI_RE_ = new RegExp(
  11823. "^" +
  11824. "(?:" +
  11825. "([^:/?#]+)" + // scheme
  11826. ":)?" +
  11827. "(?://" +
  11828. "(?:([^/?#]*)@)?" + // credentials
  11829. "([^/?#:@]*)" + // domain
  11830. "(?::([0-9]+))?" + // port
  11831. ")?" +
  11832. "([^?#]+)?" + // path
  11833. "(?:\\?([^#]*))?" + // query
  11834. "(?:#(.*))?" + // fragment
  11835. "$"
  11836. );
  11837. var URI_DISALLOWED_IN_SCHEME_OR_CREDENTIALS_ = /[#\/\?@]/g;
  11838. var URI_DISALLOWED_IN_PATH_ = /[\#\?]/g;
  11839. URI.parse = parse;
  11840. URI.create = create;
  11841. URI.resolve = resolve;
  11842. URI.collapse_dots = collapse_dots; // Visible for testing.
  11843. // lightweight string-based api for loadModuleMaker
  11844. URI.utils = {
  11845. mimeTypeOf: function (uri) {
  11846. var uriObj = parse(uri);
  11847. if (/\.html$/.test(uriObj.getPath())) {
  11848. return 'text/html';
  11849. } else {
  11850. return 'application/javascript';
  11851. }
  11852. },
  11853. resolve: function (base, uri) {
  11854. if (base) {
  11855. return resolve(parse(base), parse(uri)).toString();
  11856. } else {
  11857. return '' + uri;
  11858. }
  11859. }
  11860. };
  11861. return URI;
  11862. })();
  11863. // Copyright Google Inc.
  11864. // Licensed under the Apache Licence Version 2.0
  11865. // Autogenerated at Mon Feb 25 13:05:42 EST 2013
  11866. // @overrides window
  11867. // @provides html4
  11868. var html4 = {};
  11869. html4.atype = {
  11870. 'NONE': 0,
  11871. 'URI': 1,
  11872. 'URI_FRAGMENT': 11,
  11873. 'SCRIPT': 2,
  11874. 'STYLE': 3,
  11875. 'HTML': 12,
  11876. 'ID': 4,
  11877. 'IDREF': 5,
  11878. 'IDREFS': 6,
  11879. 'GLOBAL_NAME': 7,
  11880. 'LOCAL_NAME': 8,
  11881. 'CLASSES': 9,
  11882. 'FRAME_TARGET': 10,
  11883. 'MEDIA_QUERY': 13
  11884. };
  11885. html4[ 'atype' ] = html4.atype;
  11886. html4.ATTRIBS = {
  11887. '*::class': 9,
  11888. '*::dir': 0,
  11889. '*::draggable': 0,
  11890. '*::hidden': 0,
  11891. '*::id': 4,
  11892. '*::inert': 0,
  11893. '*::itemprop': 0,
  11894. '*::itemref': 6,
  11895. '*::itemscope': 0,
  11896. '*::lang': 0,
  11897. '*::onblur': 2,
  11898. '*::onchange': 2,
  11899. '*::onclick': 2,
  11900. '*::ondblclick': 2,
  11901. '*::onfocus': 2,
  11902. '*::onkeydown': 2,
  11903. '*::onkeypress': 2,
  11904. '*::onkeyup': 2,
  11905. '*::onload': 2,
  11906. '*::onmousedown': 2,
  11907. '*::onmousemove': 2,
  11908. '*::onmouseout': 2,
  11909. '*::onmouseover': 2,
  11910. '*::onmouseup': 2,
  11911. '*::onreset': 2,
  11912. '*::onscroll': 2,
  11913. '*::onselect': 2,
  11914. '*::onsubmit': 2,
  11915. '*::onunload': 2,
  11916. '*::spellcheck': 0,
  11917. '*::style': 3,
  11918. '*::title': 0,
  11919. '*::translate': 0,
  11920. 'a::accesskey': 0,
  11921. 'a::coords': 0,
  11922. 'a::href': 1,
  11923. 'a::hreflang': 0,
  11924. 'a::name': 7,
  11925. 'a::onblur': 2,
  11926. 'a::onfocus': 2,
  11927. 'a::shape': 0,
  11928. 'a::tabindex': 0,
  11929. 'a::target': 10,
  11930. 'a::type': 0,
  11931. 'area::accesskey': 0,
  11932. 'area::alt': 0,
  11933. 'area::coords': 0,
  11934. 'area::href': 1,
  11935. 'area::nohref': 0,
  11936. 'area::onblur': 2,
  11937. 'area::onfocus': 2,
  11938. 'area::shape': 0,
  11939. 'area::tabindex': 0,
  11940. 'area::target': 10,
  11941. 'audio::controls': 0,
  11942. 'audio::loop': 0,
  11943. 'audio::mediagroup': 5,
  11944. 'audio::muted': 0,
  11945. 'audio::preload': 0,
  11946. 'bdo::dir': 0,
  11947. 'blockquote::cite': 1,
  11948. 'br::clear': 0,
  11949. 'button::accesskey': 0,
  11950. 'button::disabled': 0,
  11951. 'button::name': 8,
  11952. 'button::onblur': 2,
  11953. 'button::onfocus': 2,
  11954. 'button::tabindex': 0,
  11955. 'button::type': 0,
  11956. 'button::value': 0,
  11957. 'canvas::height': 0,
  11958. 'canvas::width': 0,
  11959. 'caption::align': 0,
  11960. 'col::align': 0,
  11961. 'col::char': 0,
  11962. 'col::charoff': 0,
  11963. 'col::span': 0,
  11964. 'col::valign': 0,
  11965. 'col::width': 0,
  11966. 'colgroup::align': 0,
  11967. 'colgroup::char': 0,
  11968. 'colgroup::charoff': 0,
  11969. 'colgroup::span': 0,
  11970. 'colgroup::valign': 0,
  11971. 'colgroup::width': 0,
  11972. 'command::checked': 0,
  11973. 'command::command': 5,
  11974. 'command::disabled': 0,
  11975. 'command::icon': 1,
  11976. 'command::label': 0,
  11977. 'command::radiogroup': 0,
  11978. 'command::type': 0,
  11979. 'data::value': 0,
  11980. 'del::cite': 1,
  11981. 'del::datetime': 0,
  11982. 'details::open': 0,
  11983. 'dir::compact': 0,
  11984. 'div::align': 0,
  11985. 'dl::compact': 0,
  11986. 'fieldset::disabled': 0,
  11987. 'font::color': 0,
  11988. 'font::face': 0,
  11989. 'font::size': 0,
  11990. 'form::accept': 0,
  11991. 'form::action': 1,
  11992. 'form::autocomplete': 0,
  11993. 'form::enctype': 0,
  11994. 'form::method': 0,
  11995. 'form::name': 7,
  11996. 'form::novalidate': 0,
  11997. 'form::onreset': 2,
  11998. 'form::onsubmit': 2,
  11999. 'form::target': 10,
  12000. 'h1::align': 0,
  12001. 'h2::align': 0,
  12002. 'h3::align': 0,
  12003. 'h4::align': 0,
  12004. 'h5::align': 0,
  12005. 'h6::align': 0,
  12006. 'hr::align': 0,
  12007. 'hr::noshade': 0,
  12008. 'hr::size': 0,
  12009. 'hr::width': 0,
  12010. 'iframe::align': 0,
  12011. 'iframe::frameborder': 0,
  12012. 'iframe::height': 0,
  12013. 'iframe::marginheight': 0,
  12014. 'iframe::marginwidth': 0,
  12015. 'iframe::width': 0,
  12016. 'img::align': 0,
  12017. 'img::alt': 0,
  12018. 'img::border': 0,
  12019. 'img::height': 0,
  12020. 'img::hspace': 0,
  12021. 'img::ismap': 0,
  12022. 'img::name': 7,
  12023. 'img::src': 1,
  12024. 'img::usemap': 11,
  12025. 'img::vspace': 0,
  12026. 'img::width': 0,
  12027. 'input::accept': 0,
  12028. 'input::accesskey': 0,
  12029. 'input::align': 0,
  12030. 'input::alt': 0,
  12031. 'input::autocomplete': 0,
  12032. 'input::checked': 0,
  12033. 'input::disabled': 0,
  12034. 'input::inputmode': 0,
  12035. 'input::ismap': 0,
  12036. 'input::list': 5,
  12037. 'input::max': 0,
  12038. 'input::maxlength': 0,
  12039. 'input::min': 0,
  12040. 'input::multiple': 0,
  12041. 'input::name': 8,
  12042. 'input::onblur': 2,
  12043. 'input::onchange': 2,
  12044. 'input::onfocus': 2,
  12045. 'input::onselect': 2,
  12046. 'input::placeholder': 0,
  12047. 'input::readonly': 0,
  12048. 'input::required': 0,
  12049. 'input::size': 0,
  12050. 'input::src': 1,
  12051. 'input::step': 0,
  12052. 'input::tabindex': 0,
  12053. 'input::type': 0,
  12054. 'input::usemap': 11,
  12055. 'input::value': 0,
  12056. 'ins::cite': 1,
  12057. 'ins::datetime': 0,
  12058. 'label::accesskey': 0,
  12059. 'label::for': 5,
  12060. 'label::onblur': 2,
  12061. 'label::onfocus': 2,
  12062. 'legend::accesskey': 0,
  12063. 'legend::align': 0,
  12064. 'li::type': 0,
  12065. 'li::value': 0,
  12066. 'map::name': 7,
  12067. 'menu::compact': 0,
  12068. 'menu::label': 0,
  12069. 'menu::type': 0,
  12070. 'meter::high': 0,
  12071. 'meter::low': 0,
  12072. 'meter::max': 0,
  12073. 'meter::min': 0,
  12074. 'meter::value': 0,
  12075. 'ol::compact': 0,
  12076. 'ol::reversed': 0,
  12077. 'ol::start': 0,
  12078. 'ol::type': 0,
  12079. 'optgroup::disabled': 0,
  12080. 'optgroup::label': 0,
  12081. 'option::disabled': 0,
  12082. 'option::label': 0,
  12083. 'option::selected': 0,
  12084. 'option::value': 0,
  12085. 'output::for': 6,
  12086. 'output::name': 8,
  12087. 'p::align': 0,
  12088. 'pre::width': 0,
  12089. 'progress::max': 0,
  12090. 'progress::min': 0,
  12091. 'progress::value': 0,
  12092. 'q::cite': 1,
  12093. 'select::autocomplete': 0,
  12094. 'select::disabled': 0,
  12095. 'select::multiple': 0,
  12096. 'select::name': 8,
  12097. 'select::onblur': 2,
  12098. 'select::onchange': 2,
  12099. 'select::onfocus': 2,
  12100. 'select::required': 0,
  12101. 'select::size': 0,
  12102. 'select::tabindex': 0,
  12103. 'source::type': 0,
  12104. 'table::align': 0,
  12105. 'table::bgcolor': 0,
  12106. 'table::border': 0,
  12107. 'table::cellpadding': 0,
  12108. 'table::cellspacing': 0,
  12109. 'table::frame': 0,
  12110. 'table::rules': 0,
  12111. 'table::summary': 0,
  12112. 'table::width': 0,
  12113. 'tbody::align': 0,
  12114. 'tbody::char': 0,
  12115. 'tbody::charoff': 0,
  12116. 'tbody::valign': 0,
  12117. 'td::abbr': 0,
  12118. 'td::align': 0,
  12119. 'td::axis': 0,
  12120. 'td::bgcolor': 0,
  12121. 'td::char': 0,
  12122. 'td::charoff': 0,
  12123. 'td::colspan': 0,
  12124. 'td::headers': 6,
  12125. 'td::height': 0,
  12126. 'td::nowrap': 0,
  12127. 'td::rowspan': 0,
  12128. 'td::scope': 0,
  12129. 'td::valign': 0,
  12130. 'td::width': 0,
  12131. 'textarea::accesskey': 0,
  12132. 'textarea::autocomplete': 0,
  12133. 'textarea::cols': 0,
  12134. 'textarea::disabled': 0,
  12135. 'textarea::inputmode': 0,
  12136. 'textarea::name': 8,
  12137. 'textarea::onblur': 2,
  12138. 'textarea::onchange': 2,
  12139. 'textarea::onfocus': 2,
  12140. 'textarea::onselect': 2,
  12141. 'textarea::placeholder': 0,
  12142. 'textarea::readonly': 0,
  12143. 'textarea::required': 0,
  12144. 'textarea::rows': 0,
  12145. 'textarea::tabindex': 0,
  12146. 'textarea::wrap': 0,
  12147. 'tfoot::align': 0,
  12148. 'tfoot::char': 0,
  12149. 'tfoot::charoff': 0,
  12150. 'tfoot::valign': 0,
  12151. 'th::abbr': 0,
  12152. 'th::align': 0,
  12153. 'th::axis': 0,
  12154. 'th::bgcolor': 0,
  12155. 'th::char': 0,
  12156. 'th::charoff': 0,
  12157. 'th::colspan': 0,
  12158. 'th::headers': 6,
  12159. 'th::height': 0,
  12160. 'th::nowrap': 0,
  12161. 'th::rowspan': 0,
  12162. 'th::scope': 0,
  12163. 'th::valign': 0,
  12164. 'th::width': 0,
  12165. 'thead::align': 0,
  12166. 'thead::char': 0,
  12167. 'thead::charoff': 0,
  12168. 'thead::valign': 0,
  12169. 'tr::align': 0,
  12170. 'tr::bgcolor': 0,
  12171. 'tr::char': 0,
  12172. 'tr::charoff': 0,
  12173. 'tr::valign': 0,
  12174. 'track::default': 0,
  12175. 'track::kind': 0,
  12176. 'track::label': 0,
  12177. 'track::srclang': 0,
  12178. 'ul::compact': 0,
  12179. 'ul::type': 0,
  12180. 'video::controls': 0,
  12181. 'video::height': 0,
  12182. 'video::loop': 0,
  12183. 'video::mediagroup': 5,
  12184. 'video::muted': 0,
  12185. 'video::poster': 1,
  12186. 'video::preload': 0,
  12187. 'video::width': 0
  12188. };
  12189. html4[ 'ATTRIBS' ] = html4.ATTRIBS;
  12190. html4.eflags = {
  12191. 'OPTIONAL_ENDTAG': 1,
  12192. 'EMPTY': 2,
  12193. 'CDATA': 4,
  12194. 'RCDATA': 8,
  12195. 'UNSAFE': 16,
  12196. 'FOLDABLE': 32,
  12197. 'SCRIPT': 64,
  12198. 'STYLE': 128,
  12199. 'VIRTUALIZED': 256
  12200. };
  12201. html4[ 'eflags' ] = html4.eflags;
  12202. // these are bitmasks of the eflags above.
  12203. html4.ELEMENTS = {
  12204. 'a': 0,
  12205. 'abbr': 0,
  12206. 'acronym': 0,
  12207. 'address': 0,
  12208. 'applet': 272,
  12209. 'area': 2,
  12210. 'article': 0,
  12211. 'aside': 0,
  12212. 'audio': 0,
  12213. 'b': 0,
  12214. 'base': 274,
  12215. 'basefont': 274,
  12216. 'bdi': 0,
  12217. 'bdo': 0,
  12218. 'big': 0,
  12219. 'blockquote': 0,
  12220. 'body': 305,
  12221. 'br': 2,
  12222. 'button': 0,
  12223. 'canvas': 0,
  12224. 'caption': 0,
  12225. 'center': 0,
  12226. 'cite': 0,
  12227. 'code': 0,
  12228. 'col': 2,
  12229. 'colgroup': 1,
  12230. 'command': 2,
  12231. 'data': 0,
  12232. 'datalist': 0,
  12233. 'dd': 1,
  12234. 'del': 0,
  12235. 'details': 0,
  12236. 'dfn': 0,
  12237. 'dialog': 272,
  12238. 'dir': 0,
  12239. 'div': 0,
  12240. 'dl': 0,
  12241. 'dt': 1,
  12242. 'em': 0,
  12243. 'fieldset': 0,
  12244. 'figcaption': 0,
  12245. 'figure': 0,
  12246. 'font': 0,
  12247. 'footer': 0,
  12248. 'form': 0,
  12249. 'frame': 274,
  12250. 'frameset': 272,
  12251. 'h1': 0,
  12252. 'h2': 0,
  12253. 'h3': 0,
  12254. 'h4': 0,
  12255. 'h5': 0,
  12256. 'h6': 0,
  12257. 'head': 305,
  12258. 'header': 0,
  12259. 'hgroup': 0,
  12260. 'hr': 2,
  12261. 'html': 305,
  12262. 'i': 0,
  12263. 'iframe': 16,
  12264. 'img': 2,
  12265. 'input': 2,
  12266. 'ins': 0,
  12267. 'isindex': 274,
  12268. 'kbd': 0,
  12269. 'keygen': 274,
  12270. 'label': 0,
  12271. 'legend': 0,
  12272. 'li': 1,
  12273. 'link': 274,
  12274. 'map': 0,
  12275. 'mark': 0,
  12276. 'menu': 0,
  12277. 'meta': 274,
  12278. 'meter': 0,
  12279. 'nav': 0,
  12280. 'nobr': 0,
  12281. 'noembed': 276,
  12282. 'noframes': 276,
  12283. 'noscript': 276,
  12284. 'object': 272,
  12285. 'ol': 0,
  12286. 'optgroup': 0,
  12287. 'option': 1,
  12288. 'output': 0,
  12289. 'p': 1,
  12290. 'param': 274,
  12291. 'pre': 0,
  12292. 'progress': 0,
  12293. 'q': 0,
  12294. 's': 0,
  12295. 'samp': 0,
  12296. 'script': 84,
  12297. 'section': 0,
  12298. 'select': 0,
  12299. 'small': 0,
  12300. 'source': 2,
  12301. 'span': 0,
  12302. 'strike': 0,
  12303. 'strong': 0,
  12304. 'style': 148,
  12305. 'sub': 0,
  12306. 'summary': 0,
  12307. 'sup': 0,
  12308. 'table': 0,
  12309. 'tbody': 1,
  12310. 'td': 1,
  12311. 'textarea': 8,
  12312. 'tfoot': 1,
  12313. 'th': 1,
  12314. 'thead': 1,
  12315. 'time': 0,
  12316. 'title': 280,
  12317. 'tr': 1,
  12318. 'track': 2,
  12319. 'tt': 0,
  12320. 'u': 0,
  12321. 'ul': 0,
  12322. 'var': 0,
  12323. 'video': 0,
  12324. 'wbr': 2
  12325. };
  12326. html4[ 'ELEMENTS' ] = html4.ELEMENTS;
  12327. html4.ELEMENT_DOM_INTERFACES = {
  12328. 'a': 'HTMLAnchorElement',
  12329. 'abbr': 'HTMLElement',
  12330. 'acronym': 'HTMLElement',
  12331. 'address': 'HTMLElement',
  12332. 'applet': 'HTMLAppletElement',
  12333. 'area': 'HTMLAreaElement',
  12334. 'article': 'HTMLElement',
  12335. 'aside': 'HTMLElement',
  12336. 'audio': 'HTMLAudioElement',
  12337. 'b': 'HTMLElement',
  12338. 'base': 'HTMLBaseElement',
  12339. 'basefont': 'HTMLBaseFontElement',
  12340. 'bdi': 'HTMLElement',
  12341. 'bdo': 'HTMLElement',
  12342. 'big': 'HTMLElement',
  12343. 'blockquote': 'HTMLQuoteElement',
  12344. 'body': 'HTMLBodyElement',
  12345. 'br': 'HTMLBRElement',
  12346. 'button': 'HTMLButtonElement',
  12347. 'canvas': 'HTMLCanvasElement',
  12348. 'caption': 'HTMLTableCaptionElement',
  12349. 'center': 'HTMLElement',
  12350. 'cite': 'HTMLElement',
  12351. 'code': 'HTMLElement',
  12352. 'col': 'HTMLTableColElement',
  12353. 'colgroup': 'HTMLTableColElement',
  12354. 'command': 'HTMLCommandElement',
  12355. 'data': 'HTMLElement',
  12356. 'datalist': 'HTMLDataListElement',
  12357. 'dd': 'HTMLElement',
  12358. 'del': 'HTMLModElement',
  12359. 'details': 'HTMLDetailsElement',
  12360. 'dfn': 'HTMLElement',
  12361. 'dialog': 'HTMLDialogElement',
  12362. 'dir': 'HTMLDirectoryElement',
  12363. 'div': 'HTMLDivElement',
  12364. 'dl': 'HTMLDListElement',
  12365. 'dt': 'HTMLElement',
  12366. 'em': 'HTMLElement',
  12367. 'fieldset': 'HTMLFieldSetElement',
  12368. 'figcaption': 'HTMLElement',
  12369. 'figure': 'HTMLElement',
  12370. 'font': 'HTMLFontElement',
  12371. 'footer': 'HTMLElement',
  12372. 'form': 'HTMLFormElement',
  12373. 'frame': 'HTMLFrameElement',
  12374. 'frameset': 'HTMLFrameSetElement',
  12375. 'h1': 'HTMLHeadingElement',
  12376. 'h2': 'HTMLHeadingElement',
  12377. 'h3': 'HTMLHeadingElement',
  12378. 'h4': 'HTMLHeadingElement',
  12379. 'h5': 'HTMLHeadingElement',
  12380. 'h6': 'HTMLHeadingElement',
  12381. 'head': 'HTMLHeadElement',
  12382. 'header': 'HTMLElement',
  12383. 'hgroup': 'HTMLElement',
  12384. 'hr': 'HTMLHRElement',
  12385. 'html': 'HTMLHtmlElement',
  12386. 'i': 'HTMLElement',
  12387. 'iframe': 'HTMLIFrameElement',
  12388. 'img': 'HTMLImageElement',
  12389. 'input': 'HTMLInputElement',
  12390. 'ins': 'HTMLModElement',
  12391. 'isindex': 'HTMLUnknownElement',
  12392. 'kbd': 'HTMLElement',
  12393. 'keygen': 'HTMLKeygenElement',
  12394. 'label': 'HTMLLabelElement',
  12395. 'legend': 'HTMLLegendElement',
  12396. 'li': 'HTMLLIElement',
  12397. 'link': 'HTMLLinkElement',
  12398. 'map': 'HTMLMapElement',
  12399. 'mark': 'HTMLElement',
  12400. 'menu': 'HTMLMenuElement',
  12401. 'meta': 'HTMLMetaElement',
  12402. 'meter': 'HTMLMeterElement',
  12403. 'nav': 'HTMLElement',
  12404. 'nobr': 'HTMLElement',
  12405. 'noembed': 'HTMLElement',
  12406. 'noframes': 'HTMLElement',
  12407. 'noscript': 'HTMLElement',
  12408. 'object': 'HTMLObjectElement',
  12409. 'ol': 'HTMLOListElement',
  12410. 'optgroup': 'HTMLOptGroupElement',
  12411. 'option': 'HTMLOptionElement',
  12412. 'output': 'HTMLOutputElement',
  12413. 'p': 'HTMLParagraphElement',
  12414. 'param': 'HTMLParamElement',
  12415. 'pre': 'HTMLPreElement',
  12416. 'progress': 'HTMLProgressElement',
  12417. 'q': 'HTMLQuoteElement',
  12418. 's': 'HTMLElement',
  12419. 'samp': 'HTMLElement',
  12420. 'script': 'HTMLScriptElement',
  12421. 'section': 'HTMLElement',
  12422. 'select': 'HTMLSelectElement',
  12423. 'small': 'HTMLElement',
  12424. 'source': 'HTMLSourceElement',
  12425. 'span': 'HTMLSpanElement',
  12426. 'strike': 'HTMLElement',
  12427. 'strong': 'HTMLElement',
  12428. 'style': 'HTMLStyleElement',
  12429. 'sub': 'HTMLElement',
  12430. 'summary': 'HTMLElement',
  12431. 'sup': 'HTMLElement',
  12432. 'table': 'HTMLTableElement',
  12433. 'tbody': 'HTMLTableSectionElement',
  12434. 'td': 'HTMLTableDataCellElement',
  12435. 'textarea': 'HTMLTextAreaElement',
  12436. 'tfoot': 'HTMLTableSectionElement',
  12437. 'th': 'HTMLTableHeaderCellElement',
  12438. 'thead': 'HTMLTableSectionElement',
  12439. 'time': 'HTMLTimeElement',
  12440. 'title': 'HTMLTitleElement',
  12441. 'tr': 'HTMLTableRowElement',
  12442. 'track': 'HTMLTrackElement',
  12443. 'tt': 'HTMLElement',
  12444. 'u': 'HTMLElement',
  12445. 'ul': 'HTMLUListElement',
  12446. 'var': 'HTMLElement',
  12447. 'video': 'HTMLVideoElement',
  12448. 'wbr': 'HTMLElement'
  12449. };
  12450. html4[ 'ELEMENT_DOM_INTERFACES' ] = html4.ELEMENT_DOM_INTERFACES;
  12451. html4.ueffects = {
  12452. 'NOT_LOADED': 0,
  12453. 'SAME_DOCUMENT': 1,
  12454. 'NEW_DOCUMENT': 2
  12455. };
  12456. html4[ 'ueffects' ] = html4.ueffects;
  12457. html4.URIEFFECTS = {
  12458. 'a::href': 2,
  12459. 'area::href': 2,
  12460. 'blockquote::cite': 0,
  12461. 'command::icon': 1,
  12462. 'del::cite': 0,
  12463. 'form::action': 2,
  12464. 'img::src': 1,
  12465. 'input::src': 1,
  12466. 'ins::cite': 0,
  12467. 'q::cite': 0,
  12468. 'video::poster': 1
  12469. };
  12470. html4[ 'URIEFFECTS' ] = html4.URIEFFECTS;
  12471. html4.ltypes = {
  12472. 'UNSANDBOXED': 2,
  12473. 'SANDBOXED': 1,
  12474. 'DATA': 0
  12475. };
  12476. html4[ 'ltypes' ] = html4.ltypes;
  12477. html4.LOADERTYPES = {
  12478. 'a::href': 2,
  12479. 'area::href': 2,
  12480. 'blockquote::cite': 2,
  12481. 'command::icon': 1,
  12482. 'del::cite': 2,
  12483. 'form::action': 2,
  12484. 'img::src': 1,
  12485. 'input::src': 1,
  12486. 'ins::cite': 2,
  12487. 'q::cite': 2,
  12488. 'video::poster': 1
  12489. };
  12490. html4[ 'LOADERTYPES' ] = html4.LOADERTYPES;
  12491. // Copyright (C) 2006 Google Inc.
  12492. //
  12493. // Licensed under the Apache License, Version 2.0 (the "License");
  12494. // you may not use this file except in compliance with the License.
  12495. // You may obtain a copy of the License at
  12496. //
  12497. // http://www.apache.org/licenses/LICENSE-2.0
  12498. //
  12499. // Unless required by applicable law or agreed to in writing, software
  12500. // distributed under the License is distributed on an "AS IS" BASIS,
  12501. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12502. // See the License for the specific language governing permissions and
  12503. // limitations under the License.
  12504. /**
  12505. * @fileoverview
  12506. * An HTML sanitizer that can satisfy a variety of security policies.
  12507. *
  12508. * <p>
  12509. * The HTML sanitizer is built around a SAX parser and HTML element and
  12510. * attributes schemas.
  12511. *
  12512. * If the cssparser is loaded, inline styles are sanitized using the
  12513. * css property and value schemas. Else they are remove during
  12514. * sanitization.
  12515. *
  12516. * If it exists, uses parseCssDeclarations, sanitizeCssProperty, cssSchema
  12517. *
  12518. * @author mikesamuel@gmail.com
  12519. * @author jasvir@gmail.com
  12520. * \@requires html4, URI
  12521. * \@overrides window
  12522. * \@provides html, html_sanitize
  12523. */
  12524. // The Turkish i seems to be a non-issue, but abort in case it is.
  12525. if ('I'.toLowerCase() !== 'i') { throw 'I/i problem'; }
  12526. /**
  12527. * \@namespace
  12528. */
  12529. var html = (function(html4) {
  12530. // For closure compiler
  12531. var parseCssDeclarations, sanitizeCssProperty, cssSchema;
  12532. if ('undefined' !== typeof window) {
  12533. parseCssDeclarations = window['parseCssDeclarations'];
  12534. sanitizeCssProperty = window['sanitizeCssProperty'];
  12535. cssSchema = window['cssSchema'];
  12536. }
  12537. // The keys of this object must be 'quoted' or JSCompiler will mangle them!
  12538. // This is a partial list -- lookupEntity() uses the host browser's parser
  12539. // (when available) to implement full entity lookup.
  12540. // Note that entities are in general case-sensitive; the uppercase ones are
  12541. // explicitly defined by HTML5 (presumably as compatibility).
  12542. var ENTITIES = {
  12543. 'lt': '<',
  12544. 'LT': '<',
  12545. 'gt': '>',
  12546. 'GT': '>',
  12547. 'amp': '&',
  12548. 'AMP': '&',
  12549. 'quot': '"',
  12550. 'apos': '\'',
  12551. 'nbsp': '\u00A0'
  12552. };
  12553. // Patterns for types of entity/character reference names.
  12554. var decimalEscapeRe = /^#(\d+)$/;
  12555. var hexEscapeRe = /^#x([0-9A-Fa-f]+)$/;
  12556. // contains every entity per http://www.w3.org/TR/2011/WD-html5-20110113/named-character-references.html
  12557. var safeEntityNameRe = /^[A-Za-z][A-za-z0-9]+$/;
  12558. // Used as a hook to invoke the browser's entity parsing. <textarea> is used
  12559. // because its content is parsed for entities but not tags.
  12560. // TODO(kpreid): This retrieval is a kludge and leads to silent loss of
  12561. // functionality if the document isn't available.
  12562. var entityLookupElement =
  12563. ('undefined' !== typeof window && window['document'])
  12564. ? window['document'].createElement('textarea') : null;
  12565. /**
  12566. * Decodes an HTML entity.
  12567. *
  12568. * {\@updoc
  12569. * $ lookupEntity('lt')
  12570. * # '<'
  12571. * $ lookupEntity('GT')
  12572. * # '>'
  12573. * $ lookupEntity('amp')
  12574. * # '&'
  12575. * $ lookupEntity('nbsp')
  12576. * # '\xA0'
  12577. * $ lookupEntity('apos')
  12578. * # "'"
  12579. * $ lookupEntity('quot')
  12580. * # '"'
  12581. * $ lookupEntity('#xa')
  12582. * # '\n'
  12583. * $ lookupEntity('#10')
  12584. * # '\n'
  12585. * $ lookupEntity('#x0a')
  12586. * # '\n'
  12587. * $ lookupEntity('#010')
  12588. * # '\n'
  12589. * $ lookupEntity('#x00A')
  12590. * # '\n'
  12591. * $ lookupEntity('Pi') // Known failure
  12592. * # '\u03A0'
  12593. * $ lookupEntity('pi') // Known failure
  12594. * # '\u03C0'
  12595. * }
  12596. *
  12597. * @param {string} name the content between the '&' and the ';'.
  12598. * @return {string} a single unicode code-point as a string.
  12599. */
  12600. function lookupEntity(name) {
  12601. // TODO: entity lookup as specified by HTML5 actually depends on the
  12602. // presence of the ";".
  12603. if (ENTITIES.hasOwnProperty(name)) { return ENTITIES[name]; }
  12604. var m = name.match(decimalEscapeRe);
  12605. if (m) {
  12606. return String.fromCharCode(parseInt(m[1], 10));
  12607. } else if (!!(m = name.match(hexEscapeRe))) {
  12608. return String.fromCharCode(parseInt(m[1], 16));
  12609. } else if (entityLookupElement && safeEntityNameRe.test(name)) {
  12610. entityLookupElement.innerHTML = '&' + name + ';';
  12611. var text = entityLookupElement.textContent;
  12612. ENTITIES[name] = text;
  12613. return text;
  12614. } else {
  12615. return '&' + name + ';';
  12616. }
  12617. }
  12618. function decodeOneEntity(_, name) {
  12619. return lookupEntity(name);
  12620. }
  12621. var nulRe = /\0/g;
  12622. function stripNULs(s) {
  12623. return s.replace(nulRe, '');
  12624. }
  12625. var ENTITY_RE_1 = /&(#[0-9]+|#[xX][0-9A-Fa-f]+|\w+);/g;
  12626. var ENTITY_RE_2 = /^(#[0-9]+|#[xX][0-9A-Fa-f]+|\w+);/;
  12627. /**
  12628. * The plain text of a chunk of HTML CDATA which possibly containing.
  12629. *
  12630. * {\@updoc
  12631. * $ unescapeEntities('')
  12632. * # ''
  12633. * $ unescapeEntities('hello World!')
  12634. * # 'hello World!'
  12635. * $ unescapeEntities('1 &lt; 2 &amp;&AMP; 4 &gt; 3&#10;')
  12636. * # '1 < 2 && 4 > 3\n'
  12637. * $ unescapeEntities('&lt;&lt <- unfinished entity&gt;')
  12638. * # '<&lt <- unfinished entity>'
  12639. * $ unescapeEntities('/foo?bar=baz&copy=true') // & often unescaped in URLS
  12640. * # '/foo?bar=baz&copy=true'
  12641. * $ unescapeEntities('pi=&pi;&#x3c0;, Pi=&Pi;\u03A0') // FIXME: known failure
  12642. * # 'pi=\u03C0\u03c0, Pi=\u03A0\u03A0'
  12643. * }
  12644. *
  12645. * @param {string} s a chunk of HTML CDATA. It must not start or end inside
  12646. * an HTML entity.
  12647. */
  12648. function unescapeEntities(s) {
  12649. return s.replace(ENTITY_RE_1, decodeOneEntity);
  12650. }
  12651. var ampRe = /&/g;
  12652. var looseAmpRe = /&([^a-z#]|#(?:[^0-9x]|x(?:[^0-9a-f]|$)|$)|$)/gi;
  12653. var ltRe = /[<]/g;
  12654. var gtRe = />/g;
  12655. var quotRe = /\"/g;
  12656. /**
  12657. * Escapes HTML special characters in attribute values.
  12658. *
  12659. * {\@updoc
  12660. * $ escapeAttrib('')
  12661. * # ''
  12662. * $ escapeAttrib('"<<&==&>>"') // Do not just escape the first occurrence.
  12663. * # '&#34;&lt;&lt;&amp;&#61;&#61;&amp;&gt;&gt;&#34;'
  12664. * $ escapeAttrib('Hello <World>!')
  12665. * # 'Hello &lt;World&gt;!'
  12666. * }
  12667. */
  12668. function escapeAttrib(s) {
  12669. return ('' + s).replace(ampRe, '&amp;').replace(ltRe, '&lt;')
  12670. .replace(gtRe, '&gt;').replace(quotRe, '&#34;');
  12671. }
  12672. /**
  12673. * Escape entities in RCDATA that can be escaped without changing the meaning.
  12674. * {\@updoc
  12675. * $ normalizeRCData('1 < 2 &&amp; 3 > 4 &amp;& 5 &lt; 7&8')
  12676. * # '1 &lt; 2 &amp;&amp; 3 &gt; 4 &amp;&amp; 5 &lt; 7&amp;8'
  12677. * }
  12678. */
  12679. function normalizeRCData(rcdata) {
  12680. return rcdata
  12681. .replace(looseAmpRe, '&amp;$1')
  12682. .replace(ltRe, '&lt;')
  12683. .replace(gtRe, '&gt;');
  12684. }
  12685. // TODO(felix8a): validate sanitizer regexs against the HTML5 grammar at
  12686. // http://www.whatwg.org/specs/web-apps/current-work/multipage/syntax.html
  12687. // http://www.whatwg.org/specs/web-apps/current-work/multipage/parsing.html
  12688. // http://www.whatwg.org/specs/web-apps/current-work/multipage/tokenization.html
  12689. // http://www.whatwg.org/specs/web-apps/current-work/multipage/tree-construction.html
  12690. // We initially split input so that potentially meaningful characters
  12691. // like '<' and '>' are separate tokens, using a fast dumb process that
  12692. // ignores quoting. Then we walk that token stream, and when we see a
  12693. // '<' that's the start of a tag, we use ATTR_RE to extract tag
  12694. // attributes from the next token. That token will never have a '>'
  12695. // character. However, it might have an unbalanced quote character, and
  12696. // when we see that, we combine additional tokens to balance the quote.
  12697. var ATTR_RE = new RegExp(
  12698. '^\\s*' +
  12699. '([-.:\\w]+)' + // 1 = Attribute name
  12700. '(?:' + (
  12701. '\\s*(=)\\s*' + // 2 = Is there a value?
  12702. '(' + ( // 3 = Attribute value
  12703. // TODO(felix8a): maybe use backref to match quotes
  12704. '(\")[^\"]*(\"|$)' + // 4, 5 = Double-quoted string
  12705. '|' +
  12706. '(\')[^\']*(\'|$)' + // 6, 7 = Single-quoted string
  12707. '|' +
  12708. // Positive lookahead to prevent interpretation of
  12709. // <foo a= b=c> as <foo a='b=c'>
  12710. // TODO(felix8a): might be able to drop this case
  12711. '(?=[a-z][-\\w]*\\s*=)' +
  12712. '|' +
  12713. // Unquoted value that isn't an attribute name
  12714. // (since we didn't match the positive lookahead above)
  12715. '[^\"\'\\s]*' ) +
  12716. ')' ) +
  12717. ')?',
  12718. 'i');
  12719. // false on IE<=8, true on most other browsers
  12720. var splitWillCapture = ('a,b'.split(/(,)/).length === 3);
  12721. // bitmask for tags with special parsing, like <script> and <textarea>
  12722. var EFLAGS_TEXT = html4.eflags['CDATA'] | html4.eflags['RCDATA'];
  12723. /**
  12724. * Given a SAX-like event handler, produce a function that feeds those
  12725. * events and a parameter to the event handler.
  12726. *
  12727. * The event handler has the form:{@code
  12728. * {
  12729. * // Name is an upper-case HTML tag name. Attribs is an array of
  12730. * // alternating upper-case attribute names, and attribute values. The
  12731. * // attribs array is reused by the parser. Param is the value passed to
  12732. * // the saxParser.
  12733. * startTag: function (name, attribs, param) { ... },
  12734. * endTag: function (name, param) { ... },
  12735. * pcdata: function (text, param) { ... },
  12736. * rcdata: function (text, param) { ... },
  12737. * cdata: function (text, param) { ... },
  12738. * startDoc: function (param) { ... },
  12739. * endDoc: function (param) { ... }
  12740. * }}
  12741. *
  12742. * @param {Object} handler a record containing event handlers.
  12743. * @return {function(string, Object)} A function that takes a chunk of HTML
  12744. * and a parameter. The parameter is passed on to the handler methods.
  12745. */
  12746. function makeSaxParser(handler) {
  12747. // Accept quoted or unquoted keys (Closure compat)
  12748. var hcopy = {
  12749. cdata: handler.cdata || handler['cdata'],
  12750. comment: handler.comment || handler['comment'],
  12751. endDoc: handler.endDoc || handler['endDoc'],
  12752. endTag: handler.endTag || handler['endTag'],
  12753. pcdata: handler.pcdata || handler['pcdata'],
  12754. rcdata: handler.rcdata || handler['rcdata'],
  12755. startDoc: handler.startDoc || handler['startDoc'],
  12756. startTag: handler.startTag || handler['startTag']
  12757. };
  12758. return function(htmlText, param) {
  12759. return parse(htmlText, hcopy, param);
  12760. };
  12761. }
  12762. // Parsing strategy is to split input into parts that might be lexically
  12763. // meaningful (every ">" becomes a separate part), and then recombine
  12764. // parts if we discover they're in a different context.
  12765. // TODO(felix8a): Significant performance regressions from -legacy,
  12766. // tested on
  12767. // Chrome 18.0
  12768. // Firefox 11.0
  12769. // IE 6, 7, 8, 9
  12770. // Opera 11.61
  12771. // Safari 5.1.3
  12772. // Many of these are unusual patterns that are linearly slower and still
  12773. // pretty fast (eg 1ms to 5ms), so not necessarily worth fixing.
  12774. // TODO(felix8a): "<script> && && && ... <\/script>" is slower on all
  12775. // browsers. The hotspot is htmlSplit.
  12776. // TODO(felix8a): "<p title='>>>>...'><\/p>" is slower on all browsers.
  12777. // This is partly htmlSplit, but the hotspot is parseTagAndAttrs.
  12778. // TODO(felix8a): "<a><\/a><a><\/a>..." is slower on IE9.
  12779. // "<a>1<\/a><a>1<\/a>..." is faster, "<a><\/a>2<a><\/a>2..." is faster.
  12780. // TODO(felix8a): "<p<p<p..." is slower on IE[6-8]
  12781. var continuationMarker = {};
  12782. function parse(htmlText, handler, param) {
  12783. var m, p, tagName;
  12784. var parts = htmlSplit(htmlText);
  12785. var state = {
  12786. noMoreGT: false,
  12787. noMoreEndComments: false
  12788. };
  12789. parseCPS(handler, parts, 0, state, param);
  12790. }
  12791. function continuationMaker(h, parts, initial, state, param) {
  12792. return function () {
  12793. parseCPS(h, parts, initial, state, param);
  12794. };
  12795. }
  12796. function parseCPS(h, parts, initial, state, param) {
  12797. try {
  12798. if (h.startDoc && initial == 0) { h.startDoc(param); }
  12799. var m, p, tagName;
  12800. for (var pos = initial, end = parts.length; pos < end;) {
  12801. var current = parts[pos++];
  12802. var next = parts[pos];
  12803. switch (current) {
  12804. case '&':
  12805. if (ENTITY_RE_2.test(next)) {
  12806. if (h.pcdata) {
  12807. h.pcdata('&' + next, param, continuationMarker,
  12808. continuationMaker(h, parts, pos, state, param));
  12809. }
  12810. pos++;
  12811. } else {
  12812. if (h.pcdata) { h.pcdata("&amp;", param, continuationMarker,
  12813. continuationMaker(h, parts, pos, state, param));
  12814. }
  12815. }
  12816. break;
  12817. case '<\/':
  12818. if (m = /^([-\w:]+)[^\'\"]*/.exec(next)) {
  12819. if (m[0].length === next.length && parts[pos + 1] === '>') {
  12820. // fast case, no attribute parsing needed
  12821. pos += 2;
  12822. tagName = m[1].toLowerCase();
  12823. if (h.endTag) {
  12824. h.endTag(tagName, param, continuationMarker,
  12825. continuationMaker(h, parts, pos, state, param));
  12826. }
  12827. } else {
  12828. // slow case, need to parse attributes
  12829. // TODO(felix8a): do we really care about misparsing this?
  12830. pos = parseEndTag(
  12831. parts, pos, h, param, continuationMarker, state);
  12832. }
  12833. } else {
  12834. if (h.pcdata) {
  12835. h.pcdata('&lt;/', param, continuationMarker,
  12836. continuationMaker(h, parts, pos, state, param));
  12837. }
  12838. }
  12839. break;
  12840. case '<':
  12841. if (m = /^([-\w:]+)\s*\/?/.exec(next)) {
  12842. if (m[0].length === next.length && parts[pos + 1] === '>') {
  12843. // fast case, no attribute parsing needed
  12844. pos += 2;
  12845. tagName = m[1].toLowerCase();
  12846. if (h.startTag) {
  12847. h.startTag(tagName, [], param, continuationMarker,
  12848. continuationMaker(h, parts, pos, state, param));
  12849. }
  12850. // tags like <script> and <textarea> have special parsing
  12851. var eflags = html4.ELEMENTS[tagName];
  12852. if (eflags & EFLAGS_TEXT) {
  12853. var tag = { name: tagName, next: pos, eflags: eflags };
  12854. pos = parseText(
  12855. parts, tag, h, param, continuationMarker, state);
  12856. }
  12857. } else {
  12858. // slow case, need to parse attributes
  12859. pos = parseStartTag(
  12860. parts, pos, h, param, continuationMarker, state);
  12861. }
  12862. } else {
  12863. if (h.pcdata) {
  12864. h.pcdata('&lt;', param, continuationMarker,
  12865. continuationMaker(h, parts, pos, state, param));
  12866. }
  12867. }
  12868. break;
  12869. case '<\!--':
  12870. // The pathological case is n copies of '<\!--' without '-->', and
  12871. // repeated failure to find '-->' is quadratic. We avoid that by
  12872. // remembering when search for '-->' fails.
  12873. if (!state.noMoreEndComments) {
  12874. // A comment <\!--x--> is split into three tokens:
  12875. // '<\!--', 'x--', '>'
  12876. // We want to find the next '>' token that has a preceding '--'.
  12877. // pos is at the 'x--'.
  12878. for (p = pos + 1; p < end; p++) {
  12879. if (parts[p] === '>' && /--$/.test(parts[p - 1])) { break; }
  12880. }
  12881. if (p < end) {
  12882. if (h.comment) {
  12883. var comment = parts.slice(pos, p).join('');
  12884. h.comment(
  12885. comment.substr(0, comment.length - 2), param,
  12886. continuationMarker,
  12887. continuationMaker(h, parts, p + 1, state, param));
  12888. }
  12889. pos = p + 1;
  12890. } else {
  12891. state.noMoreEndComments = true;
  12892. }
  12893. }
  12894. if (state.noMoreEndComments) {
  12895. if (h.pcdata) {
  12896. h.pcdata('&lt;!--', param, continuationMarker,
  12897. continuationMaker(h, parts, pos, state, param));
  12898. }
  12899. }
  12900. break;
  12901. case '<\!':
  12902. if (!/^\w/.test(next)) {
  12903. if (h.pcdata) {
  12904. h.pcdata('&lt;!', param, continuationMarker,
  12905. continuationMaker(h, parts, pos, state, param));
  12906. }
  12907. } else {
  12908. // similar to noMoreEndComment logic
  12909. if (!state.noMoreGT) {
  12910. for (p = pos + 1; p < end; p++) {
  12911. if (parts[p] === '>') { break; }
  12912. }
  12913. if (p < end) {
  12914. pos = p + 1;
  12915. } else {
  12916. state.noMoreGT = true;
  12917. }
  12918. }
  12919. if (state.noMoreGT) {
  12920. if (h.pcdata) {
  12921. h.pcdata('&lt;!', param, continuationMarker,
  12922. continuationMaker(h, parts, pos, state, param));
  12923. }
  12924. }
  12925. }
  12926. break;
  12927. case '<?':
  12928. // similar to noMoreEndComment logic
  12929. if (!state.noMoreGT) {
  12930. for (p = pos + 1; p < end; p++) {
  12931. if (parts[p] === '>') { break; }
  12932. }
  12933. if (p < end) {
  12934. pos = p + 1;
  12935. } else {
  12936. state.noMoreGT = true;
  12937. }
  12938. }
  12939. if (state.noMoreGT) {
  12940. if (h.pcdata) {
  12941. h.pcdata('&lt;?', param, continuationMarker,
  12942. continuationMaker(h, parts, pos, state, param));
  12943. }
  12944. }
  12945. break;
  12946. case '>':
  12947. if (h.pcdata) {
  12948. h.pcdata("&gt;", param, continuationMarker,
  12949. continuationMaker(h, parts, pos, state, param));
  12950. }
  12951. break;
  12952. case '':
  12953. break;
  12954. default:
  12955. if (h.pcdata) {
  12956. h.pcdata(current, param, continuationMarker,
  12957. continuationMaker(h, parts, pos, state, param));
  12958. }
  12959. break;
  12960. }
  12961. }
  12962. if (h.endDoc) { h.endDoc(param); }
  12963. } catch (e) {
  12964. if (e !== continuationMarker) { throw e; }
  12965. }
  12966. }
  12967. // Split str into parts for the html parser.
  12968. function htmlSplit(str) {
  12969. // can't hoist this out of the function because of the re.exec loop.
  12970. var re = /(<\/|<\!--|<[!?]|[&<>])/g;
  12971. str += '';
  12972. if (splitWillCapture) {
  12973. return str.split(re);
  12974. } else {
  12975. var parts = [];
  12976. var lastPos = 0;
  12977. var m;
  12978. while ((m = re.exec(str)) !== null) {
  12979. parts.push(str.substring(lastPos, m.index));
  12980. parts.push(m[0]);
  12981. lastPos = m.index + m[0].length;
  12982. }
  12983. parts.push(str.substring(lastPos));
  12984. return parts;
  12985. }
  12986. }
  12987. function parseEndTag(parts, pos, h, param, continuationMarker, state) {
  12988. var tag = parseTagAndAttrs(parts, pos);
  12989. // drop unclosed tags
  12990. if (!tag) { return parts.length; }
  12991. if (h.endTag) {
  12992. h.endTag(tag.name, param, continuationMarker,
  12993. continuationMaker(h, parts, pos, state, param));
  12994. }
  12995. return tag.next;
  12996. }
  12997. function parseStartTag(parts, pos, h, param, continuationMarker, state) {
  12998. var tag = parseTagAndAttrs(parts, pos);
  12999. // drop unclosed tags
  13000. if (!tag) { return parts.length; }
  13001. if (h.startTag) {
  13002. h.startTag(tag.name, tag.attrs, param, continuationMarker,
  13003. continuationMaker(h, parts, tag.next, state, param));
  13004. }
  13005. // tags like <script> and <textarea> have special parsing
  13006. if (tag.eflags & EFLAGS_TEXT) {
  13007. return parseText(parts, tag, h, param, continuationMarker, state);
  13008. } else {
  13009. return tag.next;
  13010. }
  13011. }
  13012. var endTagRe = {};
  13013. // Tags like <script> and <textarea> are flagged as CDATA or RCDATA,
  13014. // which means everything is text until we see the correct closing tag.
  13015. function parseText(parts, tag, h, param, continuationMarker, state) {
  13016. var end = parts.length;
  13017. if (!endTagRe.hasOwnProperty(tag.name)) {
  13018. endTagRe[tag.name] = new RegExp('^' + tag.name + '(?:[\\s\\/]|$)', 'i');
  13019. }
  13020. var re = endTagRe[tag.name];
  13021. var first = tag.next;
  13022. var p = tag.next + 1;
  13023. for (; p < end; p++) {
  13024. if (parts[p - 1] === '<\/' && re.test(parts[p])) { break; }
  13025. }
  13026. if (p < end) { p -= 1; }
  13027. var buf = parts.slice(first, p).join('');
  13028. if (tag.eflags & html4.eflags['CDATA']) {
  13029. if (h.cdata) {
  13030. h.cdata(buf, param, continuationMarker,
  13031. continuationMaker(h, parts, p, state, param));
  13032. }
  13033. } else if (tag.eflags & html4.eflags['RCDATA']) {
  13034. if (h.rcdata) {
  13035. h.rcdata(normalizeRCData(buf), param, continuationMarker,
  13036. continuationMaker(h, parts, p, state, param));
  13037. }
  13038. } else {
  13039. throw new Error('bug');
  13040. }
  13041. return p;
  13042. }
  13043. // at this point, parts[pos-1] is either "<" or "<\/".
  13044. function parseTagAndAttrs(parts, pos) {
  13045. var m = /^([-\w:]+)/.exec(parts[pos]);
  13046. var tag = {};
  13047. tag.name = m[1].toLowerCase();
  13048. tag.eflags = html4.ELEMENTS[tag.name];
  13049. var buf = parts[pos].substr(m[0].length);
  13050. // Find the next '>'. We optimistically assume this '>' is not in a
  13051. // quoted context, and further down we fix things up if it turns out to
  13052. // be quoted.
  13053. var p = pos + 1;
  13054. var end = parts.length;
  13055. for (; p < end; p++) {
  13056. if (parts[p] === '>') { break; }
  13057. buf += parts[p];
  13058. }
  13059. if (end <= p) { return void 0; }
  13060. var attrs = [];
  13061. while (buf !== '') {
  13062. m = ATTR_RE.exec(buf);
  13063. if (!m) {
  13064. // No attribute found: skip garbage
  13065. buf = buf.replace(/^[\s\S][^a-z\s]*/, '');
  13066. } else if ((m[4] && !m[5]) || (m[6] && !m[7])) {
  13067. // Unterminated quote: slurp to the next unquoted '>'
  13068. var quote = m[4] || m[6];
  13069. var sawQuote = false;
  13070. var abuf = [buf, parts[p++]];
  13071. for (; p < end; p++) {
  13072. if (sawQuote) {
  13073. if (parts[p] === '>') { break; }
  13074. } else if (0 <= parts[p].indexOf(quote)) {
  13075. sawQuote = true;
  13076. }
  13077. abuf.push(parts[p]);
  13078. }
  13079. // Slurp failed: lose the garbage
  13080. if (end <= p) { break; }
  13081. // Otherwise retry attribute parsing
  13082. buf = abuf.join('');
  13083. continue;
  13084. } else {
  13085. // We have an attribute
  13086. var aName = m[1].toLowerCase();
  13087. var aValue = m[2] ? decodeValue(m[3]) : '';
  13088. attrs.push(aName, aValue);
  13089. buf = buf.substr(m[0].length);
  13090. }
  13091. }
  13092. tag.attrs = attrs;
  13093. tag.next = p + 1;
  13094. return tag;
  13095. }
  13096. function decodeValue(v) {
  13097. var q = v.charCodeAt(0);
  13098. if (q === 0x22 || q === 0x27) { // " or '
  13099. v = v.substr(1, v.length - 2);
  13100. }
  13101. return unescapeEntities(stripNULs(v));
  13102. }
  13103. /**
  13104. * Returns a function that strips unsafe tags and attributes from html.
  13105. * @param {function(string, Array.<string>): ?Array.<string>} tagPolicy
  13106. * A function that takes (tagName, attribs[]), where tagName is a key in
  13107. * html4.ELEMENTS and attribs is an array of alternating attribute names
  13108. * and values. It should return a record (as follows), or null to delete
  13109. * the element. It's okay for tagPolicy to modify the attribs array,
  13110. * but the same array is reused, so it should not be held between calls.
  13111. * Record keys:
  13112. * attribs: (required) Sanitized attributes array.
  13113. * tagName: Replacement tag name.
  13114. * @return {function(string, Array)} A function that sanitizes a string of
  13115. * HTML and appends result strings to the second argument, an array.
  13116. */
  13117. function makeHtmlSanitizer(tagPolicy) {
  13118. var stack;
  13119. var ignoring;
  13120. var emit = function (text, out) {
  13121. if (!ignoring) { out.push(text); }
  13122. };
  13123. return makeSaxParser({
  13124. 'startDoc': function(_) {
  13125. stack = [];
  13126. ignoring = false;
  13127. },
  13128. 'startTag': function(tagNameOrig, attribs, out) {
  13129. if (ignoring) { return; }
  13130. if (!html4.ELEMENTS.hasOwnProperty(tagNameOrig)) { return; }
  13131. var eflagsOrig = html4.ELEMENTS[tagNameOrig];
  13132. if (eflagsOrig & html4.eflags['FOLDABLE']) {
  13133. return;
  13134. }
  13135. var decision = tagPolicy(tagNameOrig, attribs);
  13136. if (!decision) {
  13137. ignoring = !(eflagsOrig & html4.eflags['EMPTY']);
  13138. return;
  13139. } else if (typeof decision !== 'object') {
  13140. throw new Error('tagPolicy did not return object (old API?)');
  13141. }
  13142. if ('attribs' in decision) {
  13143. attribs = decision['attribs'];
  13144. } else {
  13145. throw new Error('tagPolicy gave no attribs');
  13146. }
  13147. var eflagsRep;
  13148. var tagNameRep;
  13149. if ('tagName' in decision) {
  13150. tagNameRep = decision['tagName'];
  13151. eflagsRep = html4.ELEMENTS[tagNameRep];
  13152. } else {
  13153. tagNameRep = tagNameOrig;
  13154. eflagsRep = eflagsOrig;
  13155. }
  13156. // TODO(mikesamuel): relying on tagPolicy not to insert unsafe
  13157. // attribute names.
  13158. // If this is an optional-end-tag element and either this element or its
  13159. // previous like sibling was rewritten, then insert a close tag to
  13160. // preserve structure.
  13161. if (eflagsOrig & html4.eflags['OPTIONAL_ENDTAG']) {
  13162. var onStack = stack[stack.length - 1];
  13163. if (onStack && onStack.orig === tagNameOrig &&
  13164. (onStack.rep !== tagNameRep || tagNameOrig !== tagNameRep)) {
  13165. out.push('<\/', onStack.rep, '>');
  13166. }
  13167. }
  13168. if (!(eflagsOrig & html4.eflags['EMPTY'])) {
  13169. stack.push({orig: tagNameOrig, rep: tagNameRep});
  13170. }
  13171. out.push('<', tagNameRep);
  13172. for (var i = 0, n = attribs.length; i < n; i += 2) {
  13173. var attribName = attribs[i],
  13174. value = attribs[i + 1];
  13175. if (value !== null && value !== void 0) {
  13176. out.push(' ', attribName, '="', escapeAttrib(value), '"');
  13177. }
  13178. }
  13179. out.push('>');
  13180. if ((eflagsOrig & html4.eflags['EMPTY'])
  13181. && !(eflagsRep & html4.eflags['EMPTY'])) {
  13182. // replacement is non-empty, synthesize end tag
  13183. out.push('<\/', tagNameRep, '>');
  13184. }
  13185. },
  13186. 'endTag': function(tagName, out) {
  13187. if (ignoring) {
  13188. ignoring = false;
  13189. return;
  13190. }
  13191. if (!html4.ELEMENTS.hasOwnProperty(tagName)) { return; }
  13192. var eflags = html4.ELEMENTS[tagName];
  13193. if (!(eflags & (html4.eflags['EMPTY'] | html4.eflags['FOLDABLE']))) {
  13194. var index;
  13195. if (eflags & html4.eflags['OPTIONAL_ENDTAG']) {
  13196. for (index = stack.length; --index >= 0;) {
  13197. var stackElOrigTag = stack[index].orig;
  13198. if (stackElOrigTag === tagName) { break; }
  13199. if (!(html4.ELEMENTS[stackElOrigTag] &
  13200. html4.eflags['OPTIONAL_ENDTAG'])) {
  13201. // Don't pop non optional end tags looking for a match.
  13202. return;
  13203. }
  13204. }
  13205. } else {
  13206. for (index = stack.length; --index >= 0;) {
  13207. if (stack[index].orig === tagName) { break; }
  13208. }
  13209. }
  13210. if (index < 0) { return; } // Not opened.
  13211. for (var i = stack.length; --i > index;) {
  13212. var stackElRepTag = stack[i].rep;
  13213. if (!(html4.ELEMENTS[stackElRepTag] &
  13214. html4.eflags['OPTIONAL_ENDTAG'])) {
  13215. out.push('<\/', stackElRepTag, '>');
  13216. }
  13217. }
  13218. if (index < stack.length) {
  13219. tagName = stack[index].rep;
  13220. }
  13221. stack.length = index;
  13222. out.push('<\/', tagName, '>');
  13223. }
  13224. },
  13225. 'pcdata': emit,
  13226. 'rcdata': emit,
  13227. 'cdata': emit,
  13228. 'endDoc': function(out) {
  13229. for (; stack.length; stack.length--) {
  13230. out.push('<\/', stack[stack.length - 1].rep, '>');
  13231. }
  13232. }
  13233. });
  13234. }
  13235. var ALLOWED_URI_SCHEMES = /^(?:https?|mailto|data)$/i;
  13236. function safeUri(uri, effect, ltype, hints, naiveUriRewriter) {
  13237. if (!naiveUriRewriter) { return null; }
  13238. try {
  13239. var parsed = URI.parse('' + uri);
  13240. if (parsed) {
  13241. if (!parsed.hasScheme() ||
  13242. ALLOWED_URI_SCHEMES.test(parsed.getScheme())) {
  13243. var safe = naiveUriRewriter(parsed, effect, ltype, hints);
  13244. return safe ? safe.toString() : null;
  13245. }
  13246. }
  13247. } catch (e) {
  13248. return null;
  13249. }
  13250. return null;
  13251. }
  13252. function log(logger, tagName, attribName, oldValue, newValue) {
  13253. if (!attribName) {
  13254. logger(tagName + " removed", {
  13255. change: "removed",
  13256. tagName: tagName
  13257. });
  13258. }
  13259. if (oldValue !== newValue) {
  13260. var changed = "changed";
  13261. if (oldValue && !newValue) {
  13262. changed = "removed";
  13263. } else if (!oldValue && newValue) {
  13264. changed = "added";
  13265. }
  13266. logger(tagName + "." + attribName + " " + changed, {
  13267. change: changed,
  13268. tagName: tagName,
  13269. attribName: attribName,
  13270. oldValue: oldValue,
  13271. newValue: newValue
  13272. });
  13273. }
  13274. }
  13275. function lookupAttribute(map, tagName, attribName) {
  13276. var attribKey;
  13277. attribKey = tagName + '::' + attribName;
  13278. if (map.hasOwnProperty(attribKey)) {
  13279. return map[attribKey];
  13280. }
  13281. attribKey = '*::' + attribName;
  13282. if (map.hasOwnProperty(attribKey)) {
  13283. return map[attribKey];
  13284. }
  13285. return void 0;
  13286. }
  13287. function getAttributeType(tagName, attribName) {
  13288. return lookupAttribute(html4.ATTRIBS, tagName, attribName);
  13289. }
  13290. function getLoaderType(tagName, attribName) {
  13291. return lookupAttribute(html4.LOADERTYPES, tagName, attribName);
  13292. }
  13293. function getUriEffect(tagName, attribName) {
  13294. return lookupAttribute(html4.URIEFFECTS, tagName, attribName);
  13295. }
  13296. /**
  13297. * Sanitizes attributes on an HTML tag.
  13298. * @param {string} tagName An HTML tag name in lowercase.
  13299. * @param {Array.<?string>} attribs An array of alternating names and values.
  13300. * @param {?function(?string): ?string} opt_naiveUriRewriter A transform to
  13301. * apply to URI attributes; it can return a new string value, or null to
  13302. * delete the attribute. If unspecified, URI attributes are deleted.
  13303. * @param {function(?string): ?string} opt_nmTokenPolicy A transform to apply
  13304. * to attributes containing HTML names, element IDs, and space-separated
  13305. * lists of classes; it can return a new string value, or null to delete
  13306. * the attribute. If unspecified, these attributes are kept unchanged.
  13307. * @return {Array.<?string>} The sanitized attributes as a list of alternating
  13308. * names and values, where a null value means to omit the attribute.
  13309. */
  13310. function sanitizeAttribs(tagName, attribs,
  13311. opt_naiveUriRewriter, opt_nmTokenPolicy, opt_logger) {
  13312. // TODO(felix8a): it's obnoxious that domado duplicates much of this
  13313. // TODO(felix8a): maybe consistently enforce constraints like target=
  13314. for (var i = 0; i < attribs.length; i += 2) {
  13315. var attribName = attribs[i];
  13316. var value = attribs[i + 1];
  13317. var oldValue = value;
  13318. var atype = null, attribKey;
  13319. if ((attribKey = tagName + '::' + attribName,
  13320. html4.ATTRIBS.hasOwnProperty(attribKey)) ||
  13321. (attribKey = '*::' + attribName,
  13322. html4.ATTRIBS.hasOwnProperty(attribKey))) {
  13323. atype = html4.ATTRIBS[attribKey];
  13324. }
  13325. if (atype !== null) {
  13326. switch (atype) {
  13327. case html4.atype['NONE']: break;
  13328. case html4.atype['SCRIPT']:
  13329. value = null;
  13330. if (opt_logger) {
  13331. log(opt_logger, tagName, attribName, oldValue, value);
  13332. }
  13333. break;
  13334. case html4.atype['STYLE']:
  13335. if ('undefined' === typeof parseCssDeclarations) {
  13336. value = null;
  13337. if (opt_logger) {
  13338. log(opt_logger, tagName, attribName, oldValue, value);
  13339. }
  13340. break;
  13341. }
  13342. var sanitizedDeclarations = [];
  13343. parseCssDeclarations(
  13344. value,
  13345. {
  13346. declaration: function (property, tokens) {
  13347. var normProp = property.toLowerCase();
  13348. var schema = cssSchema[normProp];
  13349. if (!schema) {
  13350. return;
  13351. }
  13352. sanitizeCssProperty(
  13353. normProp, schema, tokens,
  13354. opt_naiveUriRewriter
  13355. ? function (url) {
  13356. return safeUri(
  13357. url, html4.ueffects.SAME_DOCUMENT,
  13358. html4.ltypes.SANDBOXED,
  13359. {
  13360. "TYPE": "CSS",
  13361. "CSS_PROP": normProp
  13362. }, opt_naiveUriRewriter);
  13363. }
  13364. : null);
  13365. sanitizedDeclarations.push(property + ': ' + tokens.join(' '));
  13366. }
  13367. });
  13368. value = sanitizedDeclarations.length > 0 ?
  13369. sanitizedDeclarations.join(' ; ') : null;
  13370. if (opt_logger) {
  13371. log(opt_logger, tagName, attribName, oldValue, value);
  13372. }
  13373. break;
  13374. case html4.atype['ID']:
  13375. case html4.atype['IDREF']:
  13376. case html4.atype['IDREFS']:
  13377. case html4.atype['GLOBAL_NAME']:
  13378. case html4.atype['LOCAL_NAME']:
  13379. case html4.atype['CLASSES']:
  13380. value = opt_nmTokenPolicy ? opt_nmTokenPolicy(value) : value;
  13381. if (opt_logger) {
  13382. log(opt_logger, tagName, attribName, oldValue, value);
  13383. }
  13384. break;
  13385. case html4.atype['URI']:
  13386. value = safeUri(value,
  13387. getUriEffect(tagName, attribName),
  13388. getLoaderType(tagName, attribName),
  13389. {
  13390. "TYPE": "MARKUP",
  13391. "XML_ATTR": attribName,
  13392. "XML_TAG": tagName
  13393. }, opt_naiveUriRewriter);
  13394. if (opt_logger) {
  13395. log(opt_logger, tagName, attribName, oldValue, value);
  13396. }
  13397. break;
  13398. case html4.atype['URI_FRAGMENT']:
  13399. if (value && '#' === value.charAt(0)) {
  13400. value = value.substring(1); // remove the leading '#'
  13401. value = opt_nmTokenPolicy ? opt_nmTokenPolicy(value) : value;
  13402. if (value !== null && value !== void 0) {
  13403. value = '#' + value; // restore the leading '#'
  13404. }
  13405. } else {
  13406. value = null;
  13407. }
  13408. if (opt_logger) {
  13409. log(opt_logger, tagName, attribName, oldValue, value);
  13410. }
  13411. break;
  13412. default:
  13413. value = null;
  13414. if (opt_logger) {
  13415. log(opt_logger, tagName, attribName, oldValue, value);
  13416. }
  13417. break;
  13418. }
  13419. } else {
  13420. value = null;
  13421. if (opt_logger) {
  13422. log(opt_logger, tagName, attribName, oldValue, value);
  13423. }
  13424. }
  13425. attribs[i + 1] = value;
  13426. }
  13427. return attribs;
  13428. }
  13429. /**
  13430. * Creates a tag policy that omits all tags marked UNSAFE in html4-defs.js
  13431. * and applies the default attribute sanitizer with the supplied policy for
  13432. * URI attributes and NMTOKEN attributes.
  13433. * @param {?function(?string): ?string} opt_naiveUriRewriter A transform to
  13434. * apply to URI attributes. If not given, URI attributes are deleted.
  13435. * @param {function(?string): ?string} opt_nmTokenPolicy A transform to apply
  13436. * to attributes containing HTML names, element IDs, and space-separated
  13437. * lists of classes. If not given, such attributes are left unchanged.
  13438. * @return {function(string, Array.<?string>)} A tagPolicy suitable for
  13439. * passing to html.sanitize.
  13440. */
  13441. function makeTagPolicy(
  13442. opt_naiveUriRewriter, opt_nmTokenPolicy, opt_logger) {
  13443. return function(tagName, attribs) {
  13444. if (!(html4.ELEMENTS[tagName] & html4.eflags['UNSAFE'])) {
  13445. return {
  13446. 'attribs': sanitizeAttribs(tagName, attribs,
  13447. opt_naiveUriRewriter, opt_nmTokenPolicy, opt_logger)
  13448. };
  13449. } else {
  13450. if (opt_logger) {
  13451. log(opt_logger, tagName, undefined, undefined, undefined);
  13452. }
  13453. }
  13454. };
  13455. }
  13456. /**
  13457. * Sanitizes HTML tags and attributes according to a given policy.
  13458. * @param {string} inputHtml The HTML to sanitize.
  13459. * @param {function(string, Array.<?string>)} tagPolicy A function that
  13460. * decides which tags to accept and sanitizes their attributes (see
  13461. * makeHtmlSanitizer above for details).
  13462. * @return {string} The sanitized HTML.
  13463. */
  13464. function sanitizeWithPolicy(inputHtml, tagPolicy) {
  13465. var outputArray = [];
  13466. makeHtmlSanitizer(tagPolicy)(inputHtml, outputArray);
  13467. return outputArray.join('');
  13468. }
  13469. /**
  13470. * Strips unsafe tags and attributes from HTML.
  13471. * @param {string} inputHtml The HTML to sanitize.
  13472. * @param {?function(?string): ?string} opt_naiveUriRewriter A transform to
  13473. * apply to URI attributes. If not given, URI attributes are deleted.
  13474. * @param {function(?string): ?string} opt_nmTokenPolicy A transform to apply
  13475. * to attributes containing HTML names, element IDs, and space-separated
  13476. * lists of classes. If not given, such attributes are left unchanged.
  13477. */
  13478. function sanitize(inputHtml,
  13479. opt_naiveUriRewriter, opt_nmTokenPolicy, opt_logger) {
  13480. var tagPolicy = makeTagPolicy(
  13481. opt_naiveUriRewriter, opt_nmTokenPolicy, opt_logger);
  13482. return sanitizeWithPolicy(inputHtml, tagPolicy);
  13483. }
  13484. // Export both quoted and unquoted names for Closure linkage.
  13485. var html = {};
  13486. html.escapeAttrib = html['escapeAttrib'] = escapeAttrib;
  13487. html.makeHtmlSanitizer = html['makeHtmlSanitizer'] = makeHtmlSanitizer;
  13488. html.makeSaxParser = html['makeSaxParser'] = makeSaxParser;
  13489. html.makeTagPolicy = html['makeTagPolicy'] = makeTagPolicy;
  13490. html.normalizeRCData = html['normalizeRCData'] = normalizeRCData;
  13491. html.sanitize = html['sanitize'] = sanitize;
  13492. html.sanitizeAttribs = html['sanitizeAttribs'] = sanitizeAttribs;
  13493. html.sanitizeWithPolicy = html['sanitizeWithPolicy'] = sanitizeWithPolicy;
  13494. html.unescapeEntities = html['unescapeEntities'] = unescapeEntities;
  13495. return html;
  13496. })(html4);
  13497. var html_sanitize = html['sanitize'];
  13498. // Loosen restrictions of Caja's
  13499. // html-sanitizer to allow for styling
  13500. html4.ATTRIBS['*::style'] = 0;
  13501. html4.ELEMENTS['style'] = 0;
  13502. html4.ATTRIBS['a::target'] = 0;
  13503. html4.ELEMENTS['video'] = 0;
  13504. html4.ATTRIBS['video::src'] = 0;
  13505. html4.ATTRIBS['video::poster'] = 0;
  13506. html4.ATTRIBS['video::controls'] = 0;
  13507. html4.ELEMENTS['audio'] = 0;
  13508. html4.ATTRIBS['audio::src'] = 0;
  13509. html4.ATTRIBS['video::autoplay'] = 0;
  13510. html4.ATTRIBS['video::controls'] = 0;
  13511. if (typeof module !== 'undefined') {
  13512. module.exports = html_sanitize;
  13513. }
  13514. },{}],7:[function(require,module,exports){
  13515. module.exports={
  13516. "author": "Mapbox",
  13517. "name": "mapbox.js",
  13518. "description": "mapbox javascript api",
  13519. "version": "3.1.1",
  13520. "homepage": "http://mapbox.com/",
  13521. "repository": {
  13522. "type": "git",
  13523. "url": "git://github.com/mapbox/mapbox.js.git"
  13524. },
  13525. "main": "src/index.js",
  13526. "dependencies": {
  13527. "corslite": "0.0.6",
  13528. "isarray": "0.0.1",
  13529. "leaflet": "1.0.2",
  13530. "mustache": "2.2.1",
  13531. "sanitize-caja": "0.1.4"
  13532. },
  13533. "scripts": {
  13534. "test": "eslint --no-eslintrc -c .eslintrc src && phantomjs node_modules/mocha-phantomjs-core/mocha-phantomjs-core.js test/index.html"
  13535. },
  13536. "license": "BSD-3-Clause",
  13537. "devDependencies": {
  13538. "browserify": "^13.0.0",
  13539. "clean-css": "~2.0.7",
  13540. "cz-conventional-changelog": "1.2.0",
  13541. "eslint": "^0.23.0",
  13542. "expect.js": "0.3.1",
  13543. "happen": "0.1.3",
  13544. "leaflet-fullscreen": "0.0.4",
  13545. "leaflet-hash": "0.2.1",
  13546. "marked": "~0.3.0",
  13547. "minifyify": "^6.1.0",
  13548. "minimist": "0.0.5",
  13549. "mocha": "2.4.5",
  13550. "mocha-phantomjs-core": "2.0.1",
  13551. "phantomjs-prebuilt": "2.1.12",
  13552. "sinon": "1.10.2"
  13553. },
  13554. "optionalDependencies": {},
  13555. "engines": {
  13556. "node": "*"
  13557. },
  13558. "config": {
  13559. "commitizen": {
  13560. "path": "./node_modules/cz-conventional-changelog"
  13561. }
  13562. }
  13563. }
  13564. },{}],8:[function(require,module,exports){
  13565. 'use strict';
  13566. module.exports = {
  13567. HTTP_URL: 'http://a.tiles.mapbox.com/v4',
  13568. HTTPS_URL: 'https://a.tiles.mapbox.com/v4',
  13569. FORCE_HTTPS: false,
  13570. REQUIRE_ACCESS_TOKEN: true
  13571. };
  13572. },{}],9:[function(require,module,exports){
  13573. 'use strict';
  13574. var util = require('./util'),
  13575. format_url = require('./format_url'),
  13576. request = require('./request'),
  13577. marker = require('./marker'),
  13578. simplestyle = require('./simplestyle');
  13579. // # featureLayer
  13580. //
  13581. // A layer of features, loaded from Mapbox or else. Adds the ability
  13582. // to reset features, filter them, and load them from a GeoJSON URL.
  13583. var FeatureLayer = L.FeatureGroup.extend({
  13584. options: {
  13585. filter: function() { return true; },
  13586. sanitizer: require('sanitize-caja'),
  13587. style: simplestyle.style,
  13588. popupOptions: { closeButton: false }
  13589. },
  13590. initialize: function(_, options) {
  13591. L.setOptions(this, options);
  13592. this._layers = {};
  13593. if (typeof _ === 'string') {
  13594. util.idUrl(_, this);
  13595. // javascript object of TileJSON data
  13596. } else if (_ && typeof _ === 'object') {
  13597. this.setGeoJSON(_);
  13598. }
  13599. },
  13600. setGeoJSON: function(_) {
  13601. this._geojson = _;
  13602. this.clearLayers();
  13603. this._initialize(_);
  13604. return this;
  13605. },
  13606. getGeoJSON: function() {
  13607. return this._geojson;
  13608. },
  13609. loadURL: function(url) {
  13610. if (this._request && 'abort' in this._request) this._request.abort();
  13611. this._request = request(url, L.bind(function(err, json) {
  13612. this._request = null;
  13613. if (err && err.type !== 'abort') {
  13614. util.log('could not load features at ' + url);
  13615. this.fire('error', {error: err});
  13616. } else if (json) {
  13617. this.setGeoJSON(json);
  13618. this.fire('ready');
  13619. }
  13620. }, this));
  13621. return this;
  13622. },
  13623. loadID: function(id) {
  13624. return this.loadURL(format_url('/v4/' + id + '/features.json', this.options.accessToken));
  13625. },
  13626. setFilter: function(_) {
  13627. this.options.filter = _;
  13628. if (this._geojson) {
  13629. this.clearLayers();
  13630. this._initialize(this._geojson);
  13631. }
  13632. return this;
  13633. },
  13634. getFilter: function() {
  13635. return this.options.filter;
  13636. },
  13637. _initialize: function(json) {
  13638. var features = L.Util.isArray(json) ? json : json.features,
  13639. i, len;
  13640. if (features) {
  13641. for (i = 0, len = features.length; i < len; i++) {
  13642. // Only add this if geometry or geometries are set and not null
  13643. if (features[i].geometries || features[i].geometry || features[i].features) {
  13644. this._initialize(features[i]);
  13645. }
  13646. }
  13647. } else if (this.options.filter(json)) {
  13648. var opts = {accessToken: this.options.accessToken},
  13649. pointToLayer = this.options.pointToLayer || function(feature, latlon) {
  13650. return marker.style(feature, latlon, opts);
  13651. },
  13652. layer = L.GeoJSON.geometryToLayer(json, {
  13653. pointToLayer: pointToLayer
  13654. }),
  13655. popupHtml = marker.createPopup(json, this.options.sanitizer),
  13656. style = this.options.style,
  13657. defaultStyle = style === simplestyle.style;
  13658. if (style && 'setStyle' in layer &&
  13659. // if the style method is the simplestyle default, then
  13660. // never style L.Circle or L.CircleMarker because
  13661. // simplestyle has no rules over them, only over geometry
  13662. // primitives directly from GeoJSON
  13663. (!(defaultStyle && (layer instanceof L.Circle ||
  13664. layer instanceof L.CircleMarker)))) {
  13665. if (typeof style === 'function') {
  13666. style = style(json);
  13667. }
  13668. layer.setStyle(style);
  13669. }
  13670. layer.feature = json;
  13671. if (popupHtml) {
  13672. layer.bindPopup(popupHtml, this.options.popupOptions);
  13673. }
  13674. this.addLayer(layer);
  13675. }
  13676. }
  13677. });
  13678. module.exports.FeatureLayer = FeatureLayer;
  13679. module.exports.featureLayer = function(_, options) {
  13680. return new FeatureLayer(_, options);
  13681. };
  13682. },{"./format_url":11,"./marker":24,"./request":25,"./simplestyle":27,"./util":30,"sanitize-caja":5}],10:[function(require,module,exports){
  13683. 'use strict';
  13684. var Feedback = L.Class.extend({
  13685. includes: L.Mixin.Events,
  13686. data: {},
  13687. record: function(data) {
  13688. L.extend(this.data, data);
  13689. this.fire('change');
  13690. }
  13691. });
  13692. module.exports = new Feedback();
  13693. },{}],11:[function(require,module,exports){
  13694. 'use strict';
  13695. var config = require('./config'),
  13696. version = require('../package.json').version;
  13697. module.exports = function(path, accessToken) {
  13698. accessToken = accessToken || L.mapbox.accessToken;
  13699. if (!accessToken && config.REQUIRE_ACCESS_TOKEN) {
  13700. throw new Error('An API access token is required to use Mapbox.js. ' +
  13701. 'See https://www.mapbox.com/mapbox.js/api/v' + version + '/api-access-tokens/');
  13702. }
  13703. var url = (document.location.protocol === 'https:' || config.FORCE_HTTPS) ? config.HTTPS_URL : config.HTTP_URL;
  13704. url = url.replace(/\/v4$/, '');
  13705. url += path;
  13706. if (config.REQUIRE_ACCESS_TOKEN) {
  13707. if (accessToken[0] === 's') {
  13708. throw new Error('Use a public access token (pk.*) with Mapbox.js, not a secret access token (sk.*). ' +
  13709. 'See https://www.mapbox.com/mapbox.js/api/v' + version + '/api-access-tokens/');
  13710. }
  13711. url += url.indexOf('?') !== -1 ? '&access_token=' : '?access_token=';
  13712. url += accessToken;
  13713. }
  13714. return url;
  13715. };
  13716. module.exports.tileJSON = function(urlOrMapID, accessToken) {
  13717. if (urlOrMapID.indexOf('mapbox://styles') === 0) {
  13718. throw new Error('Styles created with Mapbox Studio need to be used with ' +
  13719. 'L.mapbox.styleLayer, not L.mapbox.tileLayer');
  13720. }
  13721. if (urlOrMapID.indexOf('/') !== -1)
  13722. return urlOrMapID;
  13723. var url = module.exports('/v4/' + urlOrMapID + '.json', accessToken);
  13724. // TileJSON requests need a secure flag appended to their URLs so
  13725. // that the server knows to send SSL-ified resource references.
  13726. if (url.indexOf('https') === 0)
  13727. url += '&secure';
  13728. return url;
  13729. };
  13730. module.exports.style = function(styleURL, accessToken) {
  13731. if (styleURL.indexOf('mapbox://styles/') === -1) throw new Error('Incorrectly formatted Mapbox style at ' + styleURL);
  13732. var ownerIDStyle = styleURL.split('mapbox://styles/')[1];
  13733. var url = module.exports('/styles/v1/' + ownerIDStyle, accessToken)
  13734. .replace('http://', 'https://');
  13735. return url;
  13736. };
  13737. },{"../package.json":7,"./config":8}],12:[function(require,module,exports){
  13738. 'use strict';
  13739. var isArray = require('isarray'),
  13740. util = require('./util'),
  13741. format_url = require('./format_url'),
  13742. feedback = require('./feedback'),
  13743. request = require('./request');
  13744. // Low-level geocoding interface - wraps specific API calls and their
  13745. // return values.
  13746. module.exports = function(url, options) {
  13747. if (!options) options = {};
  13748. var geocoder = {};
  13749. util.strict(url, 'string');
  13750. if (url.indexOf('/') === -1) {
  13751. url = format_url('/geocoding/v5/' + url + '/{query}.json', options.accessToken, 5);
  13752. }
  13753. function roundTo(latLng, precision) {
  13754. var mult = Math.pow(10, precision);
  13755. latLng.lat = Math.round(latLng.lat * mult) / mult;
  13756. latLng.lng = Math.round(latLng.lng * mult) / mult;
  13757. return latLng;
  13758. }
  13759. geocoder.getURL = function() {
  13760. return url;
  13761. };
  13762. geocoder.queryURL = function(_) {
  13763. var isObject = !(isArray(_) || typeof _ === 'string'),
  13764. query = isObject ? _.query : _;
  13765. if (isArray(query)) {
  13766. var parts = [];
  13767. for (var i = 0; i < query.length; i++) {
  13768. parts[i] = encodeURIComponent(query[i]);
  13769. }
  13770. query = parts.join(';');
  13771. } else {
  13772. query = encodeURIComponent(query);
  13773. }
  13774. feedback.record({ geocoding: query });
  13775. var url = L.Util.template(geocoder.getURL(), {query: query});
  13776. if (isObject) {
  13777. if (_.types) {
  13778. if (isArray(_.types)) {
  13779. url += '&types=' + _.types.join();
  13780. } else {
  13781. url += '&types=' + _.types;
  13782. }
  13783. }
  13784. if (_.country) {
  13785. if (isArray(_.country)) {
  13786. url += '&country=' + _.country.join();
  13787. } else {
  13788. url += '&country=' + _.country;
  13789. }
  13790. }
  13791. if (_.bbox) {
  13792. if (isArray(_.bbox)) {
  13793. url += '&bbox=' + _.bbox.join();
  13794. } else {
  13795. url += '&bbox=' + _.bbox;
  13796. }
  13797. }
  13798. if (_.proximity) {
  13799. var proximity = roundTo(L.latLng(_.proximity), 3);
  13800. url += '&proximity=' + proximity.lng + ',' + proximity.lat;
  13801. }
  13802. if (typeof _.autocomplete === 'boolean') {
  13803. url += '&autocomplete=' + _.autocomplete;
  13804. }
  13805. }
  13806. return url;
  13807. };
  13808. geocoder.query = function(_, callback) {
  13809. util.strict(callback, 'function');
  13810. request(geocoder.queryURL(_), function(err, json) {
  13811. if (json && (json.length || json.features)) {
  13812. var res = {
  13813. results: json
  13814. };
  13815. if (json.features && json.features.length) {
  13816. res.latlng = [
  13817. json.features[0].center[1],
  13818. json.features[0].center[0]];
  13819. if (json.features[0].bbox) {
  13820. res.bounds = json.features[0].bbox;
  13821. res.lbounds = util.lbounds(res.bounds);
  13822. }
  13823. }
  13824. callback(null, res);
  13825. } else callback(err || true);
  13826. });
  13827. return geocoder;
  13828. };
  13829. // a reverse geocode:
  13830. //
  13831. // geocoder.reverseQuery([80, 20])
  13832. geocoder.reverseQuery = function(_, callback) {
  13833. var q = '';
  13834. // sort through different ways people represent lat and lon pairs
  13835. function normalize(x) {
  13836. var latLng;
  13837. if (x.lat !== undefined && x.lng !== undefined) {
  13838. latLng = L.latLng(x.lat, x.lng);
  13839. } else if (x.lat !== undefined && x.lon !== undefined) {
  13840. latLng = L.latLng(x.lat, x.lon);
  13841. } else {
  13842. latLng = L.latLng(x[1], x[0]);
  13843. }
  13844. latLng = roundTo(latLng, 5);
  13845. return latLng.lng + ',' + latLng.lat;
  13846. }
  13847. if (_.length && _[0].length) {
  13848. for (var i = 0, pts = []; i < _.length; i++) {
  13849. pts.push(normalize(_[i]));
  13850. }
  13851. q = pts.join(';');
  13852. } else {
  13853. q = normalize(_);
  13854. }
  13855. request(geocoder.queryURL(q), function(err, json) {
  13856. callback(err, json);
  13857. });
  13858. return geocoder;
  13859. };
  13860. return geocoder;
  13861. };
  13862. },{"./feedback":10,"./format_url":11,"./request":25,"./util":30,"isarray":2}],13:[function(require,module,exports){
  13863. 'use strict';
  13864. var geocoder = require('./geocoder'),
  13865. util = require('./util');
  13866. var GeocoderControl = L.Control.extend({
  13867. includes: L.Mixin.Events,
  13868. options: {
  13869. proximity: true,
  13870. position: 'topleft',
  13871. pointZoom: 16,
  13872. keepOpen: false,
  13873. autocomplete: false,
  13874. queryOptions: {}
  13875. },
  13876. initialize: function(_, options) {
  13877. L.Util.setOptions(this, options);
  13878. this.setURL(_);
  13879. this._updateSubmit = L.bind(this._updateSubmit, this);
  13880. this._updateAutocomplete = L.bind(this._updateAutocomplete, this);
  13881. this._chooseResult = L.bind(this._chooseResult, this);
  13882. },
  13883. setURL: function(_) {
  13884. this.geocoder = geocoder(_, {
  13885. accessToken: this.options.accessToken
  13886. });
  13887. return this;
  13888. },
  13889. getURL: function() {
  13890. return this.geocoder.getURL();
  13891. },
  13892. setID: function(_) {
  13893. return this.setURL(_);
  13894. },
  13895. setTileJSON: function(_) {
  13896. return this.setURL(_.geocoder);
  13897. },
  13898. _toggle: function(e) {
  13899. if (e) L.DomEvent.stop(e);
  13900. if (L.DomUtil.hasClass(this._container, 'active')) {
  13901. L.DomUtil.removeClass(this._container, 'active');
  13902. this._results.innerHTML = '';
  13903. this._input.blur();
  13904. } else {
  13905. L.DomUtil.addClass(this._container, 'active');
  13906. this._input.focus();
  13907. this._input.select();
  13908. }
  13909. },
  13910. _closeIfOpen: function() {
  13911. if (L.DomUtil.hasClass(this._container, 'active') &&
  13912. !this.options.keepOpen) {
  13913. L.DomUtil.removeClass(this._container, 'active');
  13914. this._results.innerHTML = '';
  13915. this._input.blur();
  13916. }
  13917. },
  13918. onAdd: function(map) {
  13919. var container = L.DomUtil.create('div', 'leaflet-control-mapbox-geocoder leaflet-bar leaflet-control'),
  13920. link = L.DomUtil.create('a', 'leaflet-control-mapbox-geocoder-toggle mapbox-icon mapbox-icon-geocoder', container),
  13921. results = L.DomUtil.create('div', 'leaflet-control-mapbox-geocoder-results', container),
  13922. wrap = L.DomUtil.create('div', 'leaflet-control-mapbox-geocoder-wrap', container),
  13923. form = L.DomUtil.create('form', 'leaflet-control-mapbox-geocoder-form', wrap),
  13924. input = L.DomUtil.create('input', '', form);
  13925. link.href = '#';
  13926. link.innerHTML = '&nbsp;';
  13927. input.type = 'text';
  13928. input.setAttribute('placeholder', 'Search');
  13929. L.DomEvent.addListener(form, 'submit', this._geocode, this);
  13930. L.DomEvent.addListener(input, 'keyup', this._autocomplete, this);
  13931. L.DomEvent.disableClickPropagation(container);
  13932. this._map = map;
  13933. this._results = results;
  13934. this._input = input;
  13935. this._form = form;
  13936. if (this.options.keepOpen) {
  13937. L.DomUtil.addClass(container, 'active');
  13938. } else {
  13939. this._map.on('click', this._closeIfOpen, this);
  13940. L.DomEvent.addListener(link, 'click', this._toggle, this);
  13941. }
  13942. return container;
  13943. },
  13944. _updateSubmit: function(err, resp) {
  13945. L.DomUtil.removeClass(this._container, 'searching');
  13946. this._results.innerHTML = '';
  13947. if (err || !resp) {
  13948. this.fire('error', {error: err});
  13949. } else {
  13950. var features = [];
  13951. if (resp.results && resp.results.features) {
  13952. features = resp.results.features;
  13953. }
  13954. if (features.length === 1) {
  13955. this.fire('autoselect', { feature: features[0] });
  13956. this.fire('found', {results: resp.results});
  13957. this._chooseResult(features[0]);
  13958. this._closeIfOpen();
  13959. } else if (features.length > 1) {
  13960. this.fire('found', {results: resp.results});
  13961. this._displayResults(features);
  13962. } else {
  13963. this.fire('notfound');
  13964. this._displayResults(features);
  13965. }
  13966. }
  13967. },
  13968. _updateAutocomplete: function(err, resp) {
  13969. this._results.innerHTML = '';
  13970. if (err || !resp) {
  13971. this.fire('error', {error: err});
  13972. } else {
  13973. var features = [];
  13974. if (resp.results && resp.results.features) {
  13975. features = resp.results.features;
  13976. }
  13977. if (features.length) {
  13978. this.fire('found', {results: resp.results});
  13979. } else {
  13980. this.fire('notfound');
  13981. }
  13982. this._displayResults(features);
  13983. }
  13984. },
  13985. _displayResults: function(features) {
  13986. for (var i = 0, l = Math.min(features.length, 5); i < l; i++) {
  13987. var feature = features[i];
  13988. var name = feature.place_name;
  13989. if (!name.length) continue;
  13990. var r = L.DomUtil.create('a', '', this._results);
  13991. var text = ('innerText' in r) ? 'innerText' : 'textContent';
  13992. r[text] = name;
  13993. r.setAttribute('title', name);
  13994. r.href = '#';
  13995. (L.bind(function(feature) {
  13996. L.DomEvent.addListener(r, 'click', function(e) {
  13997. this._chooseResult(feature);
  13998. L.DomEvent.stop(e);
  13999. this.fire('select', { feature: feature });
  14000. }, this);
  14001. }, this))(feature);
  14002. }
  14003. if (features.length > 5) {
  14004. var outof = L.DomUtil.create('span', '', this._results);
  14005. outof.innerHTML = 'Top 5 of ' + features.length + ' results';
  14006. }
  14007. },
  14008. _chooseResult: function(result) {
  14009. if (result.bbox) {
  14010. this._map.fitBounds(util.lbounds(result.bbox));
  14011. } else if (result.center) {
  14012. this._map.setView([result.center[1], result.center[0]], (this._map.getZoom() === undefined) ?
  14013. this.options.pointZoom :
  14014. Math.max(this._map.getZoom(), this.options.pointZoom));
  14015. }
  14016. },
  14017. _geocode: function(e) {
  14018. L.DomEvent.preventDefault(e);
  14019. if (this._input.value === '') return this._updateSubmit();
  14020. L.DomUtil.addClass(this._container, 'searching');
  14021. this.geocoder.query(L.Util.extend({
  14022. query: this._input.value,
  14023. proximity: this.options.proximity ? this._map.getCenter() : false
  14024. }, this.options.queryOptions), this._updateSubmit);
  14025. },
  14026. _autocomplete: function() {
  14027. if (!this.options.autocomplete) return;
  14028. if (this._input.value === '') return this._updateAutocomplete();
  14029. this.geocoder.query(L.Util.extend({
  14030. query: this._input.value,
  14031. proximity: this.options.proximity ? this._map.getCenter() : false
  14032. }, this.options.queryOptions), this._updateAutocomplete);
  14033. }
  14034. });
  14035. module.exports.GeocoderControl = GeocoderControl;
  14036. module.exports.geocoderControl = function(_, options) {
  14037. return new GeocoderControl(_, options);
  14038. };
  14039. },{"./geocoder":12,"./util":30}],14:[function(require,module,exports){
  14040. 'use strict';
  14041. function utfDecode(c) {
  14042. if (c >= 93) c--;
  14043. if (c >= 35) c--;
  14044. return c - 32;
  14045. }
  14046. module.exports = function(data) {
  14047. return function(x, y) {
  14048. if (!data) return;
  14049. var idx = utfDecode(data.grid[y].charCodeAt(x)),
  14050. key = data.keys[idx];
  14051. return data.data[key];
  14052. };
  14053. };
  14054. },{}],15:[function(require,module,exports){
  14055. 'use strict';
  14056. var util = require('./util'),
  14057. Mustache = require('mustache');
  14058. var GridControl = L.Control.extend({
  14059. options: {
  14060. pinnable: true,
  14061. follow: false,
  14062. sanitizer: require('sanitize-caja'),
  14063. touchTeaser: true,
  14064. location: true
  14065. },
  14066. _currentContent: '',
  14067. // pinned means that this control is on a feature and the user has likely
  14068. // clicked. pinned will not become false unless the user clicks off
  14069. // of the feature onto another or clicks x
  14070. _pinned: false,
  14071. initialize: function(_, options) {
  14072. L.Util.setOptions(this, options);
  14073. util.strict_instance(_, L.Class, 'L.mapbox.gridLayer');
  14074. this._layer = _;
  14075. },
  14076. setTemplate: function(template) {
  14077. util.strict(template, 'string');
  14078. this.options.template = template;
  14079. return this;
  14080. },
  14081. _template: function(format, data) {
  14082. if (!data) return;
  14083. var template = this.options.template || this._layer.getTileJSON().template;
  14084. if (template) {
  14085. var d = {};
  14086. d['__' + format + '__'] = true;
  14087. return this.options.sanitizer(
  14088. Mustache.to_html(template, L.extend(d, data)));
  14089. }
  14090. },
  14091. // change the content of the tooltip HTML if it has changed, otherwise
  14092. // noop
  14093. _show: function(content, o) {
  14094. if (content === this._currentContent) return;
  14095. this._currentContent = content;
  14096. if (this.options.follow) {
  14097. this._popup.setContent(content)
  14098. .setLatLng(o.latLng);
  14099. if (this._map._popup !== this._popup) this._popup.openOn(this._map);
  14100. } else {
  14101. this._container.style.display = 'block';
  14102. this._contentWrapper.innerHTML = content;
  14103. }
  14104. },
  14105. hide: function() {
  14106. this._pinned = false;
  14107. this._currentContent = '';
  14108. this._map.closePopup();
  14109. this._container.style.display = 'none';
  14110. this._contentWrapper.innerHTML = '';
  14111. L.DomUtil.removeClass(this._container, 'closable');
  14112. return this;
  14113. },
  14114. _mouseover: function(o) {
  14115. if (o.data) {
  14116. L.DomUtil.addClass(this._map._container, 'map-clickable');
  14117. } else {
  14118. L.DomUtil.removeClass(this._map._container, 'map-clickable');
  14119. }
  14120. if (this._pinned) return;
  14121. var content = this._template('teaser', o.data);
  14122. if (content) {
  14123. this._show(content, o);
  14124. } else {
  14125. this.hide();
  14126. }
  14127. },
  14128. _mousemove: function(o) {
  14129. if (this._pinned) return;
  14130. if (!this.options.follow) return;
  14131. this._popup.setLatLng(o.latLng);
  14132. },
  14133. _navigateTo: function(url) {
  14134. window.top.location.href = url;
  14135. },
  14136. _click: function(o) {
  14137. var location_formatted = this._template('location', o.data);
  14138. if (this.options.location && location_formatted &&
  14139. location_formatted.search(/^https?:/) === 0) {
  14140. return this._navigateTo(this._template('location', o.data));
  14141. }
  14142. if (!this.options.pinnable) return;
  14143. var content = this._template('full', o.data);
  14144. if (!content && this.options.touchTeaser && L.Browser.touch) {
  14145. content = this._template('teaser', o.data);
  14146. }
  14147. if (content) {
  14148. L.DomUtil.addClass(this._container, 'closable');
  14149. this._pinned = true;
  14150. this._show(content, o);
  14151. } else if (this._pinned) {
  14152. L.DomUtil.removeClass(this._container, 'closable');
  14153. this._pinned = false;
  14154. this.hide();
  14155. }
  14156. },
  14157. _onPopupClose: function() {
  14158. this._currentContent = null;
  14159. this._pinned = false;
  14160. },
  14161. _createClosebutton: function(container, fn) {
  14162. var link = L.DomUtil.create('a', 'close', container);
  14163. link.innerHTML = 'close';
  14164. link.href = '#';
  14165. link.title = 'close';
  14166. L.DomEvent
  14167. .on(link, 'click', L.DomEvent.stopPropagation)
  14168. .on(link, 'mousedown', L.DomEvent.stopPropagation)
  14169. .on(link, 'dblclick', L.DomEvent.stopPropagation)
  14170. .on(link, 'click', L.DomEvent.preventDefault)
  14171. .on(link, 'click', fn, this);
  14172. return link;
  14173. },
  14174. onAdd: function(map) {
  14175. this._map = map;
  14176. var className = 'leaflet-control-grid map-tooltip',
  14177. container = L.DomUtil.create('div', className),
  14178. contentWrapper = L.DomUtil.create('div', 'map-tooltip-content');
  14179. // hide the container element initially
  14180. container.style.display = 'none';
  14181. this._createClosebutton(container, this.hide);
  14182. container.appendChild(contentWrapper);
  14183. this._contentWrapper = contentWrapper;
  14184. this._popup = new L.Popup({ autoPan: false, closeOnClick: false });
  14185. map.on('popupclose', this._onPopupClose, this);
  14186. L.DomEvent
  14187. .disableClickPropagation(container)
  14188. // allow people to scroll tooltips with mousewheel
  14189. .addListener(container, 'mousewheel', L.DomEvent.stopPropagation);
  14190. this._layer
  14191. .on('mouseover', this._mouseover, this)
  14192. .on('mousemove', this._mousemove, this)
  14193. .on('click', this._click, this);
  14194. return container;
  14195. },
  14196. onRemove: function (map) {
  14197. map.off('popupclose', this._onPopupClose, this);
  14198. this._layer
  14199. .off('mouseover', this._mouseover, this)
  14200. .off('mousemove', this._mousemove, this)
  14201. .off('click', this._click, this);
  14202. }
  14203. });
  14204. module.exports.GridControl = GridControl;
  14205. module.exports.gridControl = function(_, options) {
  14206. return new GridControl(_, options);
  14207. };
  14208. },{"./util":30,"mustache":4,"sanitize-caja":5}],16:[function(require,module,exports){
  14209. 'use strict';
  14210. var util = require('./util'),
  14211. request = require('./request'),
  14212. grid = require('./grid');
  14213. // forked from danzel/L.UTFGrid
  14214. var GridLayer = L.Layer.extend({
  14215. includes: [require('./load_tilejson')],
  14216. options: {
  14217. template: function() { return ''; }
  14218. },
  14219. _mouseOn: null,
  14220. _tilejson: {},
  14221. _cache: {},
  14222. initialize: function(_, options) {
  14223. L.Util.setOptions(this, options);
  14224. this._loadTileJSON(_);
  14225. },
  14226. _setTileJSON: function(json) {
  14227. util.strict(json, 'object');
  14228. L.extend(this.options, {
  14229. grids: json.grids,
  14230. minZoom: json.minzoom,
  14231. maxZoom: json.maxzoom,
  14232. bounds: json.bounds && util.lbounds(json.bounds)
  14233. });
  14234. this._tilejson = json;
  14235. this._cache = {};
  14236. this._update();
  14237. return this;
  14238. },
  14239. getTileJSON: function() {
  14240. return this._tilejson;
  14241. },
  14242. active: function() {
  14243. return !!(this._map && this.options.grids && this.options.grids.length);
  14244. },
  14245. onAdd: function(map) {
  14246. this._map = map;
  14247. this._update();
  14248. this._map
  14249. .on('click', this._click, this)
  14250. .on('mousemove', this._move, this)
  14251. .on('moveend', this._update, this);
  14252. },
  14253. onRemove: function() {
  14254. this._map
  14255. .off('click', this._click, this)
  14256. .off('mousemove', this._move, this)
  14257. .off('moveend', this._update, this);
  14258. },
  14259. getData: function(latlng, callback) {
  14260. if (!this.active()) return;
  14261. var map = this._map,
  14262. point = map.project(latlng.wrap()),
  14263. tileSize = 256,
  14264. resolution = 4,
  14265. x = Math.floor(point.x / tileSize),
  14266. y = Math.floor(point.y / tileSize),
  14267. max = map.options.crs.scale(map.getZoom()) / tileSize;
  14268. x = (x + max) % max;
  14269. y = (y + max) % max;
  14270. this._getTile(map.getZoom(), x, y, function(grid) {
  14271. var gridX = Math.floor((point.x - (x * tileSize)) / resolution),
  14272. gridY = Math.floor((point.y - (y * tileSize)) / resolution);
  14273. callback(grid(gridX, gridY));
  14274. });
  14275. return this;
  14276. },
  14277. _click: function(e) {
  14278. this.getData(e.latlng, L.bind(function(data) {
  14279. this.fire('click', {
  14280. latLng: e.latlng,
  14281. data: data
  14282. });
  14283. }, this));
  14284. },
  14285. _move: function(e) {
  14286. this.getData(e.latlng, L.bind(function(data) {
  14287. if (data !== this._mouseOn) {
  14288. if (this._mouseOn) {
  14289. this.fire('mouseout', {
  14290. latLng: e.latlng,
  14291. data: this._mouseOn
  14292. });
  14293. }
  14294. this.fire('mouseover', {
  14295. latLng: e.latlng,
  14296. data: data
  14297. });
  14298. this._mouseOn = data;
  14299. } else {
  14300. this.fire('mousemove', {
  14301. latLng: e.latlng,
  14302. data: data
  14303. });
  14304. }
  14305. }, this));
  14306. },
  14307. _getTileURL: function(tilePoint) {
  14308. var urls = this.options.grids,
  14309. index = (tilePoint.x + tilePoint.y) % urls.length,
  14310. url = urls[index];
  14311. return L.Util.template(url, tilePoint);
  14312. },
  14313. // Load up all required json grid files
  14314. _update: function() {
  14315. if (!this.active()) return;
  14316. var bounds = this._map.getPixelBounds(),
  14317. z = this._map.getZoom(),
  14318. tileSize = 256;
  14319. if (z > this.options.maxZoom || z < this.options.minZoom) return;
  14320. var tileBounds = L.bounds(
  14321. bounds.min.divideBy(tileSize)._floor(),
  14322. bounds.max.divideBy(tileSize)._floor()),
  14323. max = this._map.options.crs.scale(z) / tileSize;
  14324. for (var x = tileBounds.min.x; x <= tileBounds.max.x; x++) {
  14325. for (var y = tileBounds.min.y; y <= tileBounds.max.y; y++) {
  14326. // x wrapped
  14327. this._getTile(z, ((x % max) + max) % max, ((y % max) + max) % max);
  14328. }
  14329. }
  14330. },
  14331. _getTile: function(z, x, y, callback) {
  14332. var key = z + '_' + x + '_' + y,
  14333. tilePoint = L.point(x, y);
  14334. tilePoint.z = z;
  14335. if (!this._tileShouldBeLoaded(tilePoint)) {
  14336. return;
  14337. }
  14338. if (key in this._cache) {
  14339. if (!callback) return;
  14340. if (typeof this._cache[key] === 'function') {
  14341. callback(this._cache[key]); // Already loaded
  14342. } else {
  14343. this._cache[key].push(callback); // Pending
  14344. }
  14345. return;
  14346. }
  14347. this._cache[key] = [];
  14348. if (callback) {
  14349. this._cache[key].push(callback);
  14350. }
  14351. request(this._getTileURL(tilePoint), L.bind(function(err, json) {
  14352. var callbacks = this._cache[key];
  14353. this._cache[key] = grid(json);
  14354. for (var i = 0; i < callbacks.length; ++i) {
  14355. callbacks[i](this._cache[key]);
  14356. }
  14357. }, this));
  14358. },
  14359. _tileShouldBeLoaded: function(tilePoint) {
  14360. if (tilePoint.z > this.options.maxZoom || tilePoint.z < this.options.minZoom) {
  14361. return false;
  14362. }
  14363. if (this.options.bounds) {
  14364. var tileSize = 256,
  14365. nwPoint = tilePoint.multiplyBy(tileSize),
  14366. sePoint = nwPoint.add(new L.Point(tileSize, tileSize)),
  14367. nw = this._map.unproject(nwPoint),
  14368. se = this._map.unproject(sePoint),
  14369. bounds = new L.LatLngBounds([nw, se]);
  14370. if (!this.options.bounds.intersects(bounds)) {
  14371. return false;
  14372. }
  14373. }
  14374. return true;
  14375. }
  14376. });
  14377. module.exports.GridLayer = GridLayer;
  14378. module.exports.gridLayer = function(_, options) {
  14379. return new GridLayer(_, options);
  14380. };
  14381. },{"./grid":14,"./load_tilejson":20,"./request":25,"./util":30}],17:[function(require,module,exports){
  14382. 'use strict';
  14383. var leaflet = require('./leaflet');
  14384. require('./mapbox');
  14385. module.exports = leaflet;
  14386. },{"./leaflet":18,"./mapbox":22}],18:[function(require,module,exports){
  14387. module.exports = window.L = require('leaflet/dist/leaflet-src');
  14388. },{"leaflet/dist/leaflet-src":3}],19:[function(require,module,exports){
  14389. 'use strict';
  14390. var LegendControl = L.Control.extend({
  14391. options: {
  14392. position: 'bottomright',
  14393. sanitizer: require('sanitize-caja')
  14394. },
  14395. initialize: function(options) {
  14396. L.setOptions(this, options);
  14397. this._legends = {};
  14398. },
  14399. onAdd: function() {
  14400. this._container = L.DomUtil.create('div', 'map-legends wax-legends');
  14401. L.DomEvent.disableClickPropagation(this._container);
  14402. this._update();
  14403. return this._container;
  14404. },
  14405. addLegend: function(text) {
  14406. if (!text) { return this; }
  14407. if (!this._legends[text]) {
  14408. this._legends[text] = 0;
  14409. }
  14410. this._legends[text]++;
  14411. return this._update();
  14412. },
  14413. removeLegend: function(text) {
  14414. if (!text) { return this; }
  14415. if (this._legends[text]) this._legends[text]--;
  14416. return this._update();
  14417. },
  14418. _update: function() {
  14419. if (!this._map) { return this; }
  14420. this._container.innerHTML = '';
  14421. var hide = 'none';
  14422. for (var i in this._legends) {
  14423. if (this._legends.hasOwnProperty(i) && this._legends[i]) {
  14424. var div = L.DomUtil.create('div', 'map-legend wax-legend', this._container);
  14425. div.innerHTML = this.options.sanitizer(i);
  14426. hide = 'block';
  14427. }
  14428. }
  14429. // hide the control entirely unless there is at least one legend;
  14430. // otherwise there will be a small grey blemish on the map.
  14431. this._container.style.display = hide;
  14432. return this;
  14433. }
  14434. });
  14435. module.exports.LegendControl = LegendControl;
  14436. module.exports.legendControl = function(options) {
  14437. return new LegendControl(options);
  14438. };
  14439. },{"sanitize-caja":5}],20:[function(require,module,exports){
  14440. 'use strict';
  14441. var request = require('./request'),
  14442. format_url = require('./format_url'),
  14443. util = require('./util');
  14444. module.exports = {
  14445. _loadTileJSON: function(_) {
  14446. if (typeof _ === 'string') {
  14447. _ = format_url.tileJSON(_, this.options && this.options.accessToken);
  14448. request(_, L.bind(function(err, json) {
  14449. if (err) {
  14450. util.log('could not load TileJSON at ' + _);
  14451. this.fire('error', {error: err});
  14452. } else if (json) {
  14453. this._setTileJSON(json);
  14454. this.fire('ready');
  14455. }
  14456. }, this));
  14457. } else if (_ && typeof _ === 'object') {
  14458. this._setTileJSON(_);
  14459. }
  14460. }
  14461. };
  14462. },{"./format_url":11,"./request":25,"./util":30}],21:[function(require,module,exports){
  14463. 'use strict';
  14464. var tileLayer = require('./tile_layer').tileLayer,
  14465. featureLayer = require('./feature_layer').featureLayer,
  14466. gridLayer = require('./grid_layer').gridLayer,
  14467. gridControl = require('./grid_control').gridControl,
  14468. shareControl = require('./share_control').shareControl,
  14469. legendControl = require('./legend_control').legendControl,
  14470. mapboxLogoControl = require('./mapbox_logo').mapboxLogoControl,
  14471. feedback = require('./feedback');
  14472. function withAccessToken(options, accessToken) {
  14473. if (!accessToken || options.accessToken)
  14474. return options;
  14475. return L.extend({accessToken: accessToken}, options);
  14476. }
  14477. var LMap = L.Map.extend({
  14478. includes: [require('./load_tilejson')],
  14479. options: {
  14480. tileLayer: {},
  14481. featureLayer: {},
  14482. gridLayer: {},
  14483. legendControl: {},
  14484. gridControl: {},
  14485. shareControl: false,
  14486. sanitizer: require('sanitize-caja')
  14487. },
  14488. _tilejson: {},
  14489. initialize: function(element, _, options) {
  14490. L.Map.prototype.initialize.call(this, element,
  14491. L.extend({}, L.Map.prototype.options, options));
  14492. // Disable the default 'Leaflet' text
  14493. if (this.attributionControl) {
  14494. this.attributionControl.setPrefix('');
  14495. var compact = this.options.attributionControl.compact;
  14496. // Set a compact display if map container width is < 640 or
  14497. // compact is set to `true` in attributionControl options.
  14498. if (compact || (compact !== false && this._container.offsetWidth <= 640)) {
  14499. L.DomUtil.addClass(this.attributionControl._container, 'leaflet-compact-attribution');
  14500. }
  14501. if (compact === undefined) {
  14502. this.on('resize', function() {
  14503. if (this._container.offsetWidth > 640) {
  14504. L.DomUtil.removeClass(this.attributionControl._container, 'leaflet-compact-attribution');
  14505. } else {
  14506. L.DomUtil.addClass(this.attributionControl._container, 'leaflet-compact-attribution');
  14507. }
  14508. });
  14509. }
  14510. }
  14511. if (this.options.tileLayer) {
  14512. this.tileLayer = tileLayer(undefined,
  14513. withAccessToken(this.options.tileLayer, this.options.accessToken));
  14514. this.addLayer(this.tileLayer);
  14515. }
  14516. if (this.options.featureLayer) {
  14517. this.featureLayer = featureLayer(undefined,
  14518. withAccessToken(this.options.featureLayer, this.options.accessToken));
  14519. this.addLayer(this.featureLayer);
  14520. }
  14521. if (this.options.gridLayer) {
  14522. this.gridLayer = gridLayer(undefined,
  14523. withAccessToken(this.options.gridLayer, this.options.accessToken));
  14524. this.addLayer(this.gridLayer);
  14525. }
  14526. if (this.options.gridLayer && this.options.gridControl) {
  14527. this.gridControl = gridControl(this.gridLayer, this.options.gridControl);
  14528. this.addControl(this.gridControl);
  14529. }
  14530. if (this.options.legendControl) {
  14531. this.legendControl = legendControl(this.options.legendControl);
  14532. this.addControl(this.legendControl);
  14533. }
  14534. if (this.options.shareControl) {
  14535. this.shareControl = shareControl(undefined,
  14536. withAccessToken(this.options.shareControl, this.options.accessToken));
  14537. this.addControl(this.shareControl);
  14538. }
  14539. this._mapboxLogoControl = mapboxLogoControl(this.options.mapboxLogoControl);
  14540. this.addControl(this._mapboxLogoControl);
  14541. this._loadTileJSON(_);
  14542. this.on('layeradd', this._onLayerAdd, this)
  14543. .on('layerremove', this._onLayerRemove, this)
  14544. .on('moveend', this._updateMapFeedbackLink, this);
  14545. this.whenReady(function () {
  14546. feedback.on('change', this._updateMapFeedbackLink, this);
  14547. });
  14548. this.on('unload', function () {
  14549. feedback.off('change', this._updateMapFeedbackLink, this);
  14550. });
  14551. },
  14552. // use a javascript object of tilejson data to configure this layer
  14553. _setTileJSON: function(_) {
  14554. this._tilejson = _;
  14555. this._initialize(_);
  14556. return this;
  14557. },
  14558. getTileJSON: function() {
  14559. return this._tilejson;
  14560. },
  14561. _initialize: function(json) {
  14562. if (this.tileLayer) {
  14563. this.tileLayer._setTileJSON(json);
  14564. this._updateLayer(this.tileLayer);
  14565. }
  14566. if (this.featureLayer && !this.featureLayer.getGeoJSON() && json.data && json.data[0]) {
  14567. this.featureLayer.loadURL(json.data[0]);
  14568. }
  14569. if (this.gridLayer) {
  14570. this.gridLayer._setTileJSON(json);
  14571. this._updateLayer(this.gridLayer);
  14572. }
  14573. if (this.legendControl && json.legend) {
  14574. this.legendControl.addLegend(json.legend);
  14575. }
  14576. if (this.shareControl) {
  14577. this.shareControl._setTileJSON(json);
  14578. }
  14579. this._mapboxLogoControl._setTileJSON(json);
  14580. if (!this._loaded && json.center) {
  14581. var zoom = this.getZoom() !== undefined ? this.getZoom() : json.center[2],
  14582. center = L.latLng(json.center[1], json.center[0]);
  14583. this.setView(center, zoom);
  14584. }
  14585. },
  14586. _updateMapFeedbackLink: function() {
  14587. if (!this._controlContainer.getElementsByClassName) return;
  14588. var link = this._controlContainer.getElementsByClassName('mapbox-improve-map');
  14589. if (link.length && this._loaded) {
  14590. var center = this.getCenter().wrap();
  14591. var tilejson = this._tilejson || {};
  14592. var id = tilejson.id || '';
  14593. var hash = '#' + id + '/' +
  14594. center.lng.toFixed(3) + '/' +
  14595. center.lat.toFixed(3) + '/' +
  14596. this.getZoom();
  14597. for (var key in feedback.data) {
  14598. hash += '/' + key + '=' + feedback.data[key];
  14599. }
  14600. for (var i = 0; i < link.length; i++) {
  14601. link[i].hash = hash;
  14602. }
  14603. }
  14604. },
  14605. _onLayerAdd: function(e) {
  14606. if ('on' in e.layer) {
  14607. e.layer.on('ready', this._onLayerReady, this);
  14608. }
  14609. window.setTimeout(L.bind(this._updateMapFeedbackLink, this), 0); // Update after attribution control resets the HTML.
  14610. },
  14611. _onLayerRemove: function(e) {
  14612. if ('on' in e.layer) {
  14613. e.layer.off('ready', this._onLayerReady, this);
  14614. }
  14615. window.setTimeout(L.bind(this._updateMapFeedbackLink, this), 0); // Update after attribution control resets the HTML.
  14616. },
  14617. _onLayerReady: function(e) {
  14618. this._updateLayer(e.target);
  14619. },
  14620. _updateLayer: function(layer) {
  14621. if (!layer.options) return;
  14622. if (this.attributionControl && this._loaded && layer.getAttribution) {
  14623. this.attributionControl.addAttribution(layer.getAttribution());
  14624. }
  14625. if (!(L.stamp(layer) in this._zoomBoundLayers) &&
  14626. (layer.options.maxZoom || layer.options.minZoom)) {
  14627. this._zoomBoundLayers[L.stamp(layer)] = layer;
  14628. }
  14629. this._updateMapFeedbackLink();
  14630. this._updateZoomLevels();
  14631. }
  14632. });
  14633. module.exports.Map = LMap;
  14634. module.exports.map = function(element, _, options) {
  14635. return new LMap(element, _, options);
  14636. };
  14637. },{"./feature_layer":9,"./feedback":10,"./grid_control":15,"./grid_layer":16,"./legend_control":19,"./load_tilejson":20,"./mapbox_logo":23,"./share_control":26,"./tile_layer":29,"sanitize-caja":5}],22:[function(require,module,exports){
  14638. 'use strict';
  14639. var geocoderControl = require('./geocoder_control'),
  14640. gridControl = require('./grid_control'),
  14641. featureLayer = require('./feature_layer'),
  14642. legendControl = require('./legend_control'),
  14643. shareControl = require('./share_control'),
  14644. tileLayer = require('./tile_layer'),
  14645. map = require('./map'),
  14646. gridLayer = require('./grid_layer'),
  14647. styleLayer = require('./style_layer');
  14648. L.mapbox = module.exports = {
  14649. VERSION: require('../package.json').version,
  14650. geocoder: require('./geocoder'),
  14651. marker: require('./marker'),
  14652. simplestyle: require('./simplestyle'),
  14653. tileLayer: tileLayer.tileLayer,
  14654. TileLayer: tileLayer.TileLayer,
  14655. styleLayer: styleLayer.styleLayer,
  14656. StyleLayer: styleLayer.StyleLayer,
  14657. shareControl: shareControl.shareControl,
  14658. ShareControl: shareControl.ShareControl,
  14659. legendControl: legendControl.legendControl,
  14660. LegendControl: legendControl.LegendControl,
  14661. geocoderControl: geocoderControl.geocoderControl,
  14662. GeocoderControl: geocoderControl.GeocoderControl,
  14663. gridControl: gridControl.gridControl,
  14664. GridControl: gridControl.GridControl,
  14665. gridLayer: gridLayer.gridLayer,
  14666. GridLayer: gridLayer.GridLayer,
  14667. featureLayer: featureLayer.featureLayer,
  14668. FeatureLayer: featureLayer.FeatureLayer,
  14669. map: map.map,
  14670. Map: map.Map,
  14671. config: require('./config'),
  14672. sanitize: require('sanitize-caja'),
  14673. template: require('mustache').to_html,
  14674. feedback: require('./feedback')
  14675. };
  14676. // Hardcode image path, because Leaflet's autodetection
  14677. // fails, because mapbox.js is not named leaflet.js
  14678. window.L.Icon.Default.imagePath =
  14679. // Detect bad-news protocols like file:// and hardcode
  14680. // to https if they're detected.
  14681. ((document.location.protocol === 'https:' ||
  14682. document.location.protocol === 'http:') ? '' : 'https:') +
  14683. '//api.tiles.mapbox.com/mapbox.js/' + 'v' +
  14684. require('../package.json').version + '/images/';
  14685. },{"../package.json":7,"./config":8,"./feature_layer":9,"./feedback":10,"./geocoder":12,"./geocoder_control":13,"./grid_control":15,"./grid_layer":16,"./legend_control":19,"./map":21,"./marker":24,"./share_control":26,"./simplestyle":27,"./style_layer":28,"./tile_layer":29,"mustache":4,"sanitize-caja":5}],23:[function(require,module,exports){
  14686. 'use strict';
  14687. var MapboxLogoControl = L.Control.extend({
  14688. options: {
  14689. position: 'bottomleft'
  14690. },
  14691. initialize: function(options) {
  14692. L.setOptions(this, options);
  14693. },
  14694. onAdd: function() {
  14695. this._container = L.DomUtil.create('div', 'mapbox-logo');
  14696. return this._container;
  14697. },
  14698. _setTileJSON: function(json) {
  14699. // Check if account referenced by the accessToken
  14700. // is asscociated with the Mapbox Logo
  14701. // as determined by mapbox-maps.
  14702. if (json.mapbox_logo) {
  14703. L.DomUtil.addClass(this._container, 'mapbox-logo-true');
  14704. }
  14705. }
  14706. });
  14707. module.exports.MapboxLogoControl = MapboxLogoControl;
  14708. module.exports.mapboxLogoControl = function(options) {
  14709. return new MapboxLogoControl(options);
  14710. };
  14711. },{}],24:[function(require,module,exports){
  14712. 'use strict';
  14713. var format_url = require('./format_url'),
  14714. util = require('./util'),
  14715. sanitize = require('sanitize-caja');
  14716. // mapbox-related markers functionality
  14717. // provide an icon from mapbox's simple-style spec and hosted markers
  14718. // service
  14719. function icon(fp, options) {
  14720. fp = fp || {};
  14721. var sizes = {
  14722. small: [20, 50],
  14723. medium: [30, 70],
  14724. large: [35, 90]
  14725. },
  14726. size = fp['marker-size'] || 'medium',
  14727. symbol = ('marker-symbol' in fp && fp['marker-symbol'] !== '') ? '-' + fp['marker-symbol'] : '',
  14728. color = (fp['marker-color'] || '7e7e7e').replace('#', '');
  14729. return L.icon({
  14730. iconUrl: format_url('/v4/marker/' +
  14731. 'pin-' + size.charAt(0) + symbol + '+' + color +
  14732. // detect and use retina markers, which are x2 resolution
  14733. (L.Browser.retina ? '@2x' : '') + '.png', options && options.accessToken),
  14734. iconSize: sizes[size],
  14735. iconAnchor: [sizes[size][0] / 2, sizes[size][1] / 2],
  14736. popupAnchor: [0, -sizes[size][1] / 2]
  14737. });
  14738. }
  14739. // a factory that provides markers for Leaflet from Mapbox's
  14740. // [simple-style specification](https://github.com/mapbox/simplestyle-spec)
  14741. // and [Markers API](http://mapbox.com/developers/api/#markers).
  14742. function style(f, latlon, options) {
  14743. return L.marker(latlon, {
  14744. icon: icon(f.properties, options),
  14745. title: util.strip_tags(
  14746. sanitize((f.properties && f.properties.title) || ''))
  14747. });
  14748. }
  14749. // Sanitize and format properties of a GeoJSON Feature object in order
  14750. // to form the HTML string used as the argument for `L.createPopup`
  14751. function createPopup(f, sanitizer) {
  14752. if (!f || !f.properties) return '';
  14753. var popup = '';
  14754. if (f.properties.title) {
  14755. popup += '<div class="marker-title">' + f.properties.title + '</div>';
  14756. }
  14757. if (f.properties.description) {
  14758. popup += '<div class="marker-description">' + f.properties.description + '</div>';
  14759. }
  14760. return (sanitizer || sanitize)(popup);
  14761. }
  14762. module.exports = {
  14763. icon: icon,
  14764. style: style,
  14765. createPopup: createPopup
  14766. };
  14767. },{"./format_url":11,"./util":30,"sanitize-caja":5}],25:[function(require,module,exports){
  14768. 'use strict';
  14769. var corslite = require('corslite'),
  14770. strict = require('./util').strict,
  14771. config = require('./config');
  14772. var protocol = /^(https?:)?(?=\/\/(.|api)\.tiles\.mapbox\.com\/)/;
  14773. module.exports = function(url, callback) {
  14774. strict(url, 'string');
  14775. strict(callback, 'function');
  14776. url = url.replace(protocol, function(match, protocol) {
  14777. if (!('withCredentials' in new window.XMLHttpRequest())) {
  14778. // XDomainRequest in use; doesn't support cross-protocol requests
  14779. return document.location.protocol;
  14780. } else if (protocol === 'https:' || document.location.protocol === 'https:' || config.FORCE_HTTPS) {
  14781. return 'https:';
  14782. } else {
  14783. return 'http:';
  14784. }
  14785. });
  14786. function onload(err, resp) {
  14787. if (!err && resp) {
  14788. resp = JSON.parse(resp.responseText);
  14789. }
  14790. callback(err, resp);
  14791. }
  14792. return corslite(url, onload);
  14793. };
  14794. },{"./config":8,"./util":30,"corslite":1}],26:[function(require,module,exports){
  14795. 'use strict';
  14796. var format_url = require('./format_url');
  14797. var ShareControl = L.Control.extend({
  14798. includes: [require('./load_tilejson')],
  14799. options: {
  14800. position: 'topleft',
  14801. url: ''
  14802. },
  14803. initialize: function(_, options) {
  14804. L.setOptions(this, options);
  14805. this._loadTileJSON(_);
  14806. },
  14807. _setTileJSON: function(json) {
  14808. this._tilejson = json;
  14809. },
  14810. onAdd: function(map) {
  14811. this._map = map;
  14812. var container = L.DomUtil.create('div', 'leaflet-control-mapbox-share leaflet-bar');
  14813. var link = L.DomUtil.create('a', 'mapbox-share mapbox-icon mapbox-icon-share', container);
  14814. link.href = '#';
  14815. this._modal = L.DomUtil.create('div', 'mapbox-modal', this._map._container);
  14816. this._mask = L.DomUtil.create('div', 'mapbox-modal-mask', this._modal);
  14817. this._content = L.DomUtil.create('div', 'mapbox-modal-content', this._modal);
  14818. L.DomEvent.addListener(link, 'click', this._shareClick, this);
  14819. L.DomEvent.disableClickPropagation(container);
  14820. this._map.on('mousedown', this._clickOut, this);
  14821. return container;
  14822. },
  14823. _clickOut: function(e) {
  14824. if (this._sharing) {
  14825. L.DomEvent.preventDefault(e);
  14826. L.DomUtil.removeClass(this._modal, 'active');
  14827. this._content.innerHTML = '';
  14828. this._sharing = null;
  14829. return;
  14830. }
  14831. },
  14832. _shareClick: function(e) {
  14833. L.DomEvent.stop(e);
  14834. if (this._sharing) return this._clickOut(e);
  14835. var tilejson = this._tilejson || this._map._tilejson || {},
  14836. url = encodeURIComponent(this.options.url || tilejson.webpage || window.location),
  14837. name = encodeURIComponent(tilejson.name),
  14838. image = format_url('/v4/' + tilejson.id + '/' + this._map.getCenter().lng + ',' + this._map.getCenter().lat + ',' + this._map.getZoom() + '/600x600.png', this.options.accessToken),
  14839. embed = format_url('/v4/' + tilejson.id + '.html', this.options.accessToken),
  14840. twitterURL = '//twitter.com/intent/tweet?status=' + name + ' ' + url,
  14841. facebookURL = '//www.facebook.com/sharer.php?u=' + url + '&t=' + name,
  14842. pinterestURL = '//www.pinterest.com/pin/create/button/?url=' + url + '&media=' + image + '&description=' + name,
  14843. embedValue = '<iframe width="100%" height="500px" frameBorder="0" src="' + embed + '"></iframe>',
  14844. embedLabel = 'Copy and paste this <strong>HTML code</strong> into documents to embed this map on web pages.';
  14845. function createShareButton(buttonClass, href, socialMediaName) {
  14846. var elem = document.createElement('a');
  14847. elem.setAttribute('class', buttonClass);
  14848. elem.setAttribute('href', href);
  14849. elem.setAttribute('target', '_blank');
  14850. socialMediaName = document.createTextNode(socialMediaName);
  14851. elem.appendChild(socialMediaName);
  14852. return elem;
  14853. }
  14854. L.DomUtil.addClass(this._modal, 'active');
  14855. this._sharing = L.DomUtil.create('div', 'mapbox-modal-body', this._content);
  14856. var twitterButton = createShareButton('mapbox-button mapbox-button-icon mapbox-icon-twitter', twitterURL, 'Twitter');
  14857. var facebookButton = createShareButton('mapbox-button mapbox-button-icon mapbox-icon-facebook', facebookURL, 'Facebook');
  14858. var pinterestButton = createShareButton('mapbox-button mapbox-button-icon mapbox-icon-pinterest', pinterestURL, 'Pinterest');
  14859. var shareHeader = document.createElement('h3');
  14860. var shareText = document.createTextNode('Share this map');
  14861. shareHeader.appendChild(shareText);
  14862. var shareButtons = document.createElement('div');
  14863. shareButtons.setAttribute('class', 'mapbox-share-buttons');
  14864. shareButtons.appendChild(facebookButton);
  14865. shareButtons.appendChild(twitterButton);
  14866. shareButtons.appendChild(pinterestButton);
  14867. this._sharing.appendChild(shareHeader);
  14868. this._sharing.appendChild(shareButtons);
  14869. var input = L.DomUtil.create('input', 'mapbox-embed', this._sharing);
  14870. input.type = 'text';
  14871. input.value = embedValue;
  14872. var label = L.DomUtil.create('label', 'mapbox-embed-description', this._sharing);
  14873. label.innerHTML = embedLabel;
  14874. var close = L.DomUtil.create('a', 'leaflet-popup-close-button', this._sharing);
  14875. close.href = '#';
  14876. L.DomEvent.disableClickPropagation(this._sharing);
  14877. L.DomEvent.addListener(close, 'click', this._clickOut, this);
  14878. L.DomEvent.addListener(input, 'click', function(e) {
  14879. e.target.focus();
  14880. e.target.select();
  14881. });
  14882. }
  14883. });
  14884. module.exports.ShareControl = ShareControl;
  14885. module.exports.shareControl = function(_, options) {
  14886. return new ShareControl(_, options);
  14887. };
  14888. },{"./format_url":11,"./load_tilejson":20}],27:[function(require,module,exports){
  14889. 'use strict';
  14890. // an implementation of the simplestyle spec for polygon and linestring features
  14891. // https://github.com/mapbox/simplestyle-spec
  14892. var defaults = {
  14893. stroke: '#555555',
  14894. 'stroke-width': 2,
  14895. 'stroke-opacity': 1,
  14896. fill: '#555555',
  14897. 'fill-opacity': 0.5
  14898. };
  14899. var mapping = [
  14900. ['stroke', 'color'],
  14901. ['stroke-width', 'weight'],
  14902. ['stroke-opacity', 'opacity'],
  14903. ['fill', 'fillColor'],
  14904. ['fill-opacity', 'fillOpacity']
  14905. ];
  14906. function fallback(a, b) {
  14907. var c = {};
  14908. for (var k in b) {
  14909. if (a[k] === undefined) c[k] = b[k];
  14910. else c[k] = a[k];
  14911. }
  14912. return c;
  14913. }
  14914. function remap(a) {
  14915. var d = {};
  14916. for (var i = 0; i < mapping.length; i++) {
  14917. d[mapping[i][1]] = a[mapping[i][0]];
  14918. }
  14919. return d;
  14920. }
  14921. function style(feature) {
  14922. return remap(fallback(feature.properties || {}, defaults));
  14923. }
  14924. module.exports = {
  14925. style: style,
  14926. defaults: defaults
  14927. };
  14928. },{}],28:[function(require,module,exports){
  14929. 'use strict';
  14930. var util = require('./util');
  14931. var format_url = require('./format_url');
  14932. var request = require('./request');
  14933. var StyleLayer = L.TileLayer.extend({
  14934. options: {
  14935. sanitizer: require('sanitize-caja')
  14936. },
  14937. initialize: function(_, options) {
  14938. L.TileLayer.prototype.initialize.call(this, undefined, L.extend({}, options, {
  14939. tileSize: 512,
  14940. zoomOffset: -1,
  14941. minNativeZoom: 0,
  14942. tms: false
  14943. }));
  14944. this._url = this._formatTileURL(_);
  14945. this._getAttribution(_);
  14946. },
  14947. _getAttribution: function(_) {
  14948. var styleURL = format_url.style(_, this.options && this.options.accessToken);
  14949. request(styleURL, L.bind(function(err, style) {
  14950. if (err) {
  14951. util.log('could not load Mapbox style at ' + styleURL);
  14952. this.fire('error', {error: err});
  14953. }
  14954. var sources = [];
  14955. for (var id in style.sources) {
  14956. var source = style.sources[id].url.split('mapbox://')[1];
  14957. sources.push(source);
  14958. }
  14959. request(format_url.tileJSON(sources.join(), this.options.accessToken), L.bind(function(err, json) {
  14960. if (err) {
  14961. util.log('could not load TileJSON at ' + _);
  14962. this.fire('error', {error: err});
  14963. } else if (json) {
  14964. util.strict(json, 'object');
  14965. this.options.attribution = this.options.sanitizer(json.attribution);
  14966. this._tilejson = json;
  14967. this.fire('ready');
  14968. }
  14969. }, this));
  14970. }, this));
  14971. },
  14972. // disable the setUrl function, which is not available on mapbox tilelayers
  14973. setUrl: null,
  14974. _formatTileURL: function(style) {
  14975. if (typeof style === 'string') {
  14976. if (style.indexOf('mapbox://styles/') === -1) {
  14977. util.log('Incorrectly formatted Mapbox style at ' + style);
  14978. this.fire('error');
  14979. }
  14980. var ownerIDStyle = style.split('mapbox://styles/')[1];
  14981. return format_url('/styles/v1/' + ownerIDStyle + '/tiles/{z}/{x}/{y}{r}', this.options.accessToken);
  14982. } else if (typeof style === 'object') {
  14983. return format_url('/styles/v1/' + style.owner + '/' + style.id + '/tiles/{z}/{x}/{y}{r}', this.options.accessToken);
  14984. }
  14985. }
  14986. });
  14987. module.exports.StyleLayer = StyleLayer;
  14988. module.exports.styleLayer = function(_, options) {
  14989. return new StyleLayer(_, options);
  14990. };
  14991. },{"./format_url":11,"./request":25,"./util":30,"sanitize-caja":5}],29:[function(require,module,exports){
  14992. 'use strict';
  14993. var util = require('./util');
  14994. var formatPattern = /\.((?:png|jpg)\d*)(?=$|\?)/;
  14995. var TileLayer = L.TileLayer.extend({
  14996. includes: [require('./load_tilejson')],
  14997. options: {
  14998. sanitizer: require('sanitize-caja')
  14999. },
  15000. // http://mapbox.com/developers/api/#image_quality
  15001. formats: [
  15002. 'png', 'jpg',
  15003. // PNG
  15004. 'png32', 'png64', 'png128', 'png256',
  15005. // JPG
  15006. 'jpg70', 'jpg80', 'jpg90'],
  15007. scalePrefix: '@2x.',
  15008. initialize: function(_, options) {
  15009. L.TileLayer.prototype.initialize.call(this, undefined, options);
  15010. this._tilejson = {};
  15011. if (options && options.format) {
  15012. util.strict_oneof(options.format, this.formats);
  15013. }
  15014. this._loadTileJSON(_);
  15015. },
  15016. setFormat: function(_) {
  15017. util.strict(_, 'string');
  15018. this.options.format = _;
  15019. this.redraw();
  15020. return this;
  15021. },
  15022. // disable the setUrl function, which is not available on mapbox tilelayers
  15023. setUrl: null,
  15024. _setTileJSON: function(json) {
  15025. util.strict(json, 'object');
  15026. if (!this.options.format) {
  15027. var match = json.tiles[0].match(formatPattern);
  15028. if (match) {
  15029. this.options.format = match[1];
  15030. }
  15031. }
  15032. L.extend(this.options, {
  15033. tiles: json.tiles,
  15034. attribution: this.options.sanitizer(json.attribution),
  15035. minZoom: json.minzoom || 0,
  15036. maxZoom: json.maxzoom || 18,
  15037. tms: json.scheme === 'tms',
  15038. bounds: json.bounds && util.lbounds(json.bounds)
  15039. });
  15040. this._tilejson = json;
  15041. this.redraw();
  15042. return this;
  15043. },
  15044. getTileJSON: function() {
  15045. return this._tilejson;
  15046. },
  15047. // this is an exception to mapbox.js naming rules because it's called
  15048. // by `L.map`
  15049. getTileUrl: function(tilePoint) {
  15050. var tiles = this.options.tiles,
  15051. index = Math.floor(Math.abs(tilePoint.x + tilePoint.y) % tiles.length),
  15052. url = tiles[index];
  15053. var templated = L.Util.template(url, tilePoint);
  15054. if (!templated || !this.options.format) {
  15055. return templated;
  15056. } else {
  15057. return templated.replace(formatPattern,
  15058. (L.Browser.retina ? this.scalePrefix : '.') + this.options.format);
  15059. }
  15060. },
  15061. // TileJSON.TileLayers are added to the map immediately, so that they get
  15062. // the desired z-index, but do not update until the TileJSON has been loaded.
  15063. _update: function() {
  15064. if (this.options.tiles) {
  15065. L.TileLayer.prototype._update.call(this);
  15066. }
  15067. }
  15068. });
  15069. module.exports.TileLayer = TileLayer;
  15070. module.exports.tileLayer = function(_, options) {
  15071. return new TileLayer(_, options);
  15072. };
  15073. },{"./load_tilejson":20,"./util":30,"sanitize-caja":5}],30:[function(require,module,exports){
  15074. 'use strict';
  15075. function contains(item, list) {
  15076. if (!list || !list.length) return false;
  15077. for (var i = 0; i < list.length; i++) {
  15078. if (list[i] === item) return true;
  15079. }
  15080. return false;
  15081. }
  15082. module.exports = {
  15083. idUrl: function(_, t) {
  15084. if (_.indexOf('/') === -1) t.loadID(_);
  15085. else t.loadURL(_);
  15086. },
  15087. log: function(_) {
  15088. if (typeof console === 'object' &&
  15089. typeof console.error === 'function') {
  15090. console.error(_);
  15091. }
  15092. },
  15093. strict: function(_, type) {
  15094. if (typeof _ !== type) {
  15095. throw new Error('Invalid argument: ' + type + ' expected');
  15096. }
  15097. },
  15098. strict_instance: function(_, klass, name) {
  15099. if (!(_ instanceof klass)) {
  15100. throw new Error('Invalid argument: ' + name + ' expected');
  15101. }
  15102. },
  15103. strict_oneof: function(_, values) {
  15104. if (!contains(_, values)) {
  15105. throw new Error('Invalid argument: ' + _ + ' given, valid values are ' +
  15106. values.join(', '));
  15107. }
  15108. },
  15109. strip_tags: function(_) {
  15110. return _.replace(/<[^<]+>/g, '');
  15111. },
  15112. lbounds: function(_) {
  15113. // leaflet-compatible bounds, since leaflet does not do geojson
  15114. return new L.LatLngBounds([[_[1], _[0]], [_[3], _[2]]]);
  15115. }
  15116. };
  15117. },{}]},{},[17])
  15118. //# 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':' + location.port : ''));\n    }\n\n    var x = new window.XMLHttpRequest();\n\n    function isSuccessful(status) {\n        return status >= 200 && status < 300 || status === 304;\n    }\n\n    if (cors && !('withCredentials' in x)) {\n        // IE8-9\n        x = new window.XDomainRequest();\n\n        // Ensure callback is never called synchronously, i.e., before\n        // x.send() returns (this has been observed in the wild).\n        // See https://github.com/mapbox/mapbox.js/issues/472\n        var original = callback;\n        callback = function() {\n            if (sent) {\n                original.apply(this, arguments);\n            } else {\n                var that = this, args = arguments;\n                setTimeout(function() {\n                    original.apply(that, args);\n                }, 0);\n            }\n        }\n    }\n\n    function loaded() {\n        if (\n            // XDomainRequest\n            x.status === undefined ||\n            // modern browsers\n            isSuccessful(x.status)) callback.call(x, null, x);\n        else callback.call(x, x, null);\n    }\n\n    // Both `onreadystatechange` and `onload` can fire. `onreadystatechange`\n    // has [been supported for longer](http://stackoverflow.com/a/9181508/229001).\n    if ('onload' in x) {\n        x.onload = loaded;\n    } else {\n        x.onreadystatechange = function readystate() {\n            if (x.readyState === 4) {\n                loaded();\n            }\n        };\n    }\n\n    // Call the callback with the XMLHttpRequest object as an error and prevent\n    // it from ever being called again by reassigning it to `noop`\n    x.onerror = function error(evt) {\n        // XDomainRequest provides no evt parameter\n        callback.call(this, evt || true, null);\n        callback = function() { };\n    };\n\n    // IE9 must have onprogress be set to a unique function.\n    x.onprogress = function() { };\n\n    x.ontimeout = function(evt) {\n        callback.call(this, evt, null);\n        callback = function() { };\n    };\n\n    x.onabort = function(evt) {\n        callback.call(this, evt, null);\n        callback = function() { };\n    };\n\n    // GET is the only supported HTTP Verb by XDomainRequest and is the\n    // only one supported here.\n    x.open('GET', url, true);\n\n    // Send the request. Sending data is not supported.\n    x.send(null);\n    sent = true;\n\n    return x;\n}\n\nif (typeof module !== 'undefined') module.exports = corslite;\n","module.exports = Array.isArray || function (arr) {\n  return Object.prototype.toString.call(arr) == '[object Array]';\n};\n","/*\n Leaflet 1.0.2, a JS library for interactive maps. http://leafletjs.com\n (c) 2010-2016 Vladimir Agafonkin, (c) 2010-2011 CloudMade\n*/\n(function (window, document, undefined) {\r\nvar L = {\r\n\tversion: \"1.0.2\"\r\n};\r\n\r\nfunction expose() {\r\n\tvar oldL = window.L;\r\n\r\n\tL.noConflict = function () {\r\n\t\twindow.L = oldL;\r\n\t\treturn this;\r\n\t};\r\n\r\n\twindow.L = L;\r\n}\r\n\r\n// define Leaflet for Node module pattern loaders, including Browserify\r\nif (typeof module === 'object' && typeof module.exports === 'object') {\r\n\tmodule.exports = L;\r\n\r\n// define Leaflet as an AMD module\r\n} else if (typeof define === 'function' && define.amd) {\r\n\tdefine(L);\r\n}\r\n\r\n// define Leaflet as a global L variable, saving the original L to restore later if needed\r\nif (typeof window !== 'undefined') {\r\n\texpose();\r\n}\r\n\n\n\n/*\r\n * @namespace Util\r\n *\r\n * Various utility functions, used by Leaflet internally.\r\n */\r\n\r\nL.Util = {\r\n\r\n\t// @function extend(dest: Object, src?: Object): Object\r\n\t// Merges the properties of the `src` object (or multiple objects) into `dest` object and returns the latter. Has an `L.extend` shortcut.\r\n\textend: function (dest) {\r\n\t\tvar i, j, len, src;\r\n\r\n\t\tfor (j = 1, len = arguments.length; j < len; j++) {\r\n\t\t\tsrc = arguments[j];\r\n\t\t\tfor (i in src) {\r\n\t\t\t\tdest[i] = src[i];\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn dest;\r\n\t},\r\n\r\n\t// @function create(proto: Object, properties?: Object): Object\r\n\t// Compatibility polyfill for [Object.create](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create)\r\n\tcreate: Object.create || (function () {\r\n\t\tfunction F() {}\r\n\t\treturn function (proto) {\r\n\t\t\tF.prototype = proto;\r\n\t\t\treturn new F();\r\n\t\t};\r\n\t})(),\r\n\r\n\t// @function bind(fn: Function, …): Function\r\n\t// Returns a new function bound to the arguments passed, like [Function.prototype.bind](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind).\r\n\t// Has a `L.bind()` shortcut.\r\n\tbind: function (fn, obj) {\r\n\t\tvar slice = Array.prototype.slice;\r\n\r\n\t\tif (fn.bind) {\r\n\t\t\treturn fn.bind.apply(fn, slice.call(arguments, 1));\r\n\t\t}\r\n\r\n\t\tvar args = slice.call(arguments, 2);\r\n\r\n\t\treturn function () {\r\n\t\t\treturn fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments);\r\n\t\t};\r\n\t},\r\n\r\n\t// @function stamp(obj: Object): Number\r\n\t// Returns the unique ID of an object, assiging it one if it doesn't have it.\r\n\tstamp: function (obj) {\r\n\t\t/*eslint-disable */\r\n\t\tobj._leaflet_id = obj._leaflet_id || ++L.Util.lastId;\r\n\t\treturn obj._leaflet_id;\r\n\t\t/*eslint-enable */\r\n\t},\r\n\r\n\t// @property lastId: Number\r\n\t// Last unique ID used by [`stamp()`](#util-stamp)\r\n\tlastId: 0,\r\n\r\n\t// @function throttle(fn: Function, time: Number, context: Object): Function\r\n\t// Returns a function which executes function `fn` with the given scope `context`\r\n\t// (so that the `this` keyword refers to `context` inside `fn`'s code). The function\r\n\t// `fn` will be called no more than one time per given amount of `time`. The arguments\r\n\t// received by the bound function will be any arguments passed when binding the\r\n\t// function, followed by any arguments passed when invoking the bound function.\r\n\t// Has an `L.bind` shortcut.\r\n\tthrottle: function (fn, time, context) {\r\n\t\tvar lock, args, wrapperFn, later;\r\n\r\n\t\tlater = function () {\r\n\t\t\t// reset lock and call if queued\r\n\t\t\tlock = false;\r\n\t\t\tif (args) {\r\n\t\t\t\twrapperFn.apply(context, args);\r\n\t\t\t\targs = false;\r\n\t\t\t}\r\n\t\t};\r\n\r\n\t\twrapperFn = function () {\r\n\t\t\tif (lock) {\r\n\t\t\t\t// called too soon, queue to call later\r\n\t\t\t\targs = arguments;\r\n\r\n\t\t\t} else {\r\n\t\t\t\t// call and lock until later\r\n\t\t\t\tfn.apply(context, arguments);\r\n\t\t\t\tsetTimeout(later, time);\r\n\t\t\t\tlock = true;\r\n\t\t\t}\r\n\t\t};\r\n\r\n\t\treturn wrapperFn;\r\n\t},\r\n\r\n\t// @function wrapNum(num: Number, range: Number[], includeMax?: Boolean): Number\r\n\t// Returns the number `num` modulo `range` in such a way so it lies within\r\n\t// `range[0]` and `range[1]`. The returned value will be always smaller than\r\n\t// `range[1]` unless `includeMax` is set to `true`.\r\n\twrapNum: function (x, range, includeMax) {\r\n\t\tvar max = range[1],\r\n\t\t    min = range[0],\r\n\t\t    d = max - min;\r\n\t\treturn x === max && includeMax ? x : ((x - min) % d + d) % d + min;\r\n\t},\r\n\r\n\t// @function falseFn(): Function\r\n\t// Returns a function which always returns `false`.\r\n\tfalseFn: function () { return false; },\r\n\r\n\t// @function formatNum(num: Number, digits?: Number): Number\r\n\t// Returns the number `num` rounded to `digits` decimals, or to 5 decimals by default.\r\n\tformatNum: function (num, digits) {\r\n\t\tvar pow = Math.pow(10, digits || 5);\r\n\t\treturn Math.round(num * pow) / pow;\r\n\t},\r\n\r\n\t// @function trim(str: String): String\r\n\t// Compatibility polyfill for [String.prototype.trim](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)\r\n\ttrim: function (str) {\r\n\t\treturn str.trim ? str.trim() : str.replace(/^\\s+|\\s+$/g, '');\r\n\t},\r\n\r\n\t// @function splitWords(str: String): String[]\r\n\t// Trims and splits the string on whitespace and returns the array of parts.\r\n\tsplitWords: function (str) {\r\n\t\treturn L.Util.trim(str).split(/\\s+/);\r\n\t},\r\n\r\n\t// @function setOptions(obj: Object, options: Object): Object\r\n\t// Merges the given properties to the `options` of the `obj` object, returning the resulting options. See `Class options`. Has an `L.setOptions` shortcut.\r\n\tsetOptions: function (obj, options) {\r\n\t\tif (!obj.hasOwnProperty('options')) {\r\n\t\t\tobj.options = obj.options ? L.Util.create(obj.options) : {};\r\n\t\t}\r\n\t\tfor (var i in options) {\r\n\t\t\tobj.options[i] = options[i];\r\n\t\t}\r\n\t\treturn obj.options;\r\n\t},\r\n\r\n\t// @function getParamString(obj: Object, existingUrl?: String, uppercase?: Boolean): String\r\n\t// Converts an object into a parameter URL string, e.g. `{a: \"foo\", b: \"bar\"}`\r\n\t// translates to `'?a=foo&b=bar'`. If `existingUrl` is set, the parameters will\r\n\t// be appended at the end. If `uppercase` is `true`, the parameter names will\r\n\t// be uppercased (e.g. `'?A=foo&B=bar'`)\r\n\tgetParamString: function (obj, existingUrl, uppercase) {\r\n\t\tvar params = [];\r\n\t\tfor (var i in obj) {\r\n\t\t\tparams.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));\r\n\t\t}\r\n\t\treturn ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');\r\n\t},\r\n\r\n\t// @function template(str: String, data: Object): String\r\n\t// Simple templating facility, accepts a template string of the form `'Hello {a}, {b}'`\r\n\t// and a data object like `{a: 'foo', b: 'bar'}`, returns evaluated string\r\n\t// `('Hello foo, bar')`. You can also specify functions instead of strings for\r\n\t// data values — they will be evaluated passing `data` as an argument.\r\n\ttemplate: function (str, data) {\r\n\t\treturn str.replace(L.Util.templateRe, function (str, key) {\r\n\t\t\tvar value = data[key];\r\n\r\n\t\t\tif (value === undefined) {\r\n\t\t\t\tthrow new Error('No value provided for variable ' + str);\r\n\r\n\t\t\t} else if (typeof value === 'function') {\r\n\t\t\t\tvalue = value(data);\r\n\t\t\t}\r\n\t\t\treturn value;\r\n\t\t});\r\n\t},\r\n\r\n\ttemplateRe: /\\{ *([\\w_\\-]+) *\\}/g,\r\n\r\n\t// @function isArray(obj): Boolean\r\n\t// Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray)\r\n\tisArray: Array.isArray || function (obj) {\r\n\t\treturn (Object.prototype.toString.call(obj) === '[object Array]');\r\n\t},\r\n\r\n\t// @function indexOf(array: Array, el: Object): Number\r\n\t// Compatibility polyfill for [Array.prototype.indexOf](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf)\r\n\tindexOf: function (array, el) {\r\n\t\tfor (var i = 0; i < array.length; i++) {\r\n\t\t\tif (array[i] === el) { return i; }\r\n\t\t}\r\n\t\treturn -1;\r\n\t},\r\n\r\n\t// @property emptyImageUrl: String\r\n\t// Data URI string containing a base64-encoded empty GIF image.\r\n\t// Used as a hack to free memory from unused images on WebKit-powered\r\n\t// mobile devices (by setting image `src` to this string).\r\n\temptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='\r\n};\r\n\r\n(function () {\r\n\t// inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/\r\n\r\n\tfunction getPrefixed(name) {\r\n\t\treturn window['webkit' + name] || window['moz' + name] || window['ms' + name];\r\n\t}\r\n\r\n\tvar lastTime = 0;\r\n\r\n\t// fallback for IE 7-8\r\n\tfunction timeoutDefer(fn) {\r\n\t\tvar time = +new Date(),\r\n\t\t    timeToCall = Math.max(0, 16 - (time - lastTime));\r\n\r\n\t\tlastTime = time + timeToCall;\r\n\t\treturn window.setTimeout(fn, timeToCall);\r\n\t}\r\n\r\n\tvar requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer,\r\n\t    cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') ||\r\n\t               getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); };\r\n\r\n\r\n\t// @function requestAnimFrame(fn: Function, context?: Object, immediate?: Boolean): Number\r\n\t// Schedules `fn` to be executed when the browser repaints. `fn` is bound to\r\n\t// `context` if given. When `immediate` is set, `fn` is called immediately if\r\n\t// the browser doesn't have native support for\r\n\t// [`window.requestAnimationFrame`](https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame),\r\n\t// otherwise it's delayed. Returns a request ID that can be used to cancel the request.\r\n\tL.Util.requestAnimFrame = function (fn, context, immediate) {\r\n\t\tif (immediate && requestFn === timeoutDefer) {\r\n\t\t\tfn.call(context);\r\n\t\t} else {\r\n\t\t\treturn requestFn.call(window, L.bind(fn, context));\r\n\t\t}\r\n\t};\r\n\r\n\t// @function cancelAnimFrame(id: Number): undefined\r\n\t// Cancels a previous `requestAnimFrame`. See also [window.cancelAnimationFrame](https://developer.mozilla.org/docs/Web/API/window/cancelAnimationFrame).\r\n\tL.Util.cancelAnimFrame = function (id) {\r\n\t\tif (id) {\r\n\t\t\tcancelFn.call(window, id);\r\n\t\t}\r\n\t};\r\n})();\r\n\r\n// shortcuts for most used utility functions\r\nL.extend = L.Util.extend;\r\nL.bind = L.Util.bind;\r\nL.stamp = L.Util.stamp;\r\nL.setOptions = L.Util.setOptions;\r\n\n\n\n\r\n// @class Class\r\n// @aka L.Class\r\n\r\n// @section\r\n// @uninheritable\r\n\r\n// Thanks to John Resig and Dean Edwards for inspiration!\r\n\r\nL.Class = function () {};\r\n\r\nL.Class.extend = function (props) {\r\n\r\n\t// @function extend(props: Object): Function\r\n\t// [Extends the current class](#class-inheritance) given the properties to be included.\r\n\t// Returns a Javascript function that is a class constructor (to be called with `new`).\r\n\tvar NewClass = function () {\r\n\r\n\t\t// call the constructor\r\n\t\tif (this.initialize) {\r\n\t\t\tthis.initialize.apply(this, arguments);\r\n\t\t}\r\n\r\n\t\t// call all constructor hooks\r\n\t\tthis.callInitHooks();\r\n\t};\r\n\r\n\tvar parentProto = NewClass.__super__ = this.prototype;\r\n\r\n\tvar proto = L.Util.create(parentProto);\r\n\tproto.constructor = NewClass;\r\n\r\n\tNewClass.prototype = proto;\r\n\r\n\t// inherit parent's statics\r\n\tfor (var i in this) {\r\n\t\tif (this.hasOwnProperty(i) && i !== 'prototype') {\r\n\t\t\tNewClass[i] = this[i];\r\n\t\t}\r\n\t}\r\n\r\n\t// mix static properties into the class\r\n\tif (props.statics) {\r\n\t\tL.extend(NewClass, props.statics);\r\n\t\tdelete props.statics;\r\n\t}\r\n\r\n\t// mix includes into the prototype\r\n\tif (props.includes) {\r\n\t\tL.Util.extend.apply(null, [proto].concat(props.includes));\r\n\t\tdelete props.includes;\r\n\t}\r\n\r\n\t// merge options\r\n\tif (proto.options) {\r\n\t\tprops.options = L.Util.extend(L.Util.create(proto.options), props.options);\r\n\t}\r\n\r\n\t// mix given properties into the prototype\r\n\tL.extend(proto, props);\r\n\r\n\tproto._initHooks = [];\r\n\r\n\t// add method for calling all hooks\r\n\tproto.callInitHooks = function () {\r\n\r\n\t\tif (this._initHooksCalled) { return; }\r\n\r\n\t\tif (parentProto.callInitHooks) {\r\n\t\t\tparentProto.callInitHooks.call(this);\r\n\t\t}\r\n\r\n\t\tthis._initHooksCalled = true;\r\n\r\n\t\tfor (var i = 0, len = proto._initHooks.length; i < len; i++) {\r\n\t\t\tproto._initHooks[i].call(this);\r\n\t\t}\r\n\t};\r\n\r\n\treturn NewClass;\r\n};\r\n\r\n\r\n// @function include(properties: Object): this\r\n// [Includes a mixin](#class-includes) into the current class.\r\nL.Class.include = function (props) {\r\n\tL.extend(this.prototype, props);\r\n\treturn this;\r\n};\r\n\r\n// @function mergeOptions(options: Object): this\r\n// [Merges `options`](#class-options) into the defaults of the class.\r\nL.Class.mergeOptions = function (options) {\r\n\tL.extend(this.prototype.options, options);\r\n\treturn this;\r\n};\r\n\r\n// @function addInitHook(fn: Function): this\r\n// Adds a [constructor hook](#class-constructor-hooks) to the class.\r\nL.Class.addInitHook = function (fn) { // (Function) || (String, args...)\r\n\tvar args = Array.prototype.slice.call(arguments, 1);\r\n\r\n\tvar init = typeof fn === 'function' ? fn : function () {\r\n\t\tthis[fn].apply(this, args);\r\n\t};\r\n\r\n\tthis.prototype._initHooks = this.prototype._initHooks || [];\r\n\tthis.prototype._initHooks.push(init);\r\n\treturn this;\r\n};\r\n\n\n\n/*\r\n * @class Evented\r\n * @aka L.Evented\r\n * @inherits Class\r\n *\r\n * A set of methods shared between event-powered classes (like `Map` and `Marker`). Generally, events allow you to execute some function when something happens with an object (e.g. the user clicks on the map, causing the map to fire `'click'` event).\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * map.on('click', function(e) {\r\n * \talert(e.latlng);\r\n * } );\r\n * ```\r\n *\r\n * Leaflet deals with event listeners by reference, so if you want to add a listener and then remove it, define it as a function:\r\n *\r\n * ```js\r\n * function onClick(e) { ... }\r\n *\r\n * map.on('click', onClick);\r\n * map.off('click', onClick);\r\n * ```\r\n */\r\n\r\n\r\nL.Evented = L.Class.extend({\r\n\r\n\t/* @method on(type: String, fn: Function, context?: Object): this\r\n\t * Adds a listener function (`fn`) to a particular event type of the object. You can optionally specify the context of the listener (object the this keyword will point to). You can also pass several space-separated types (e.g. `'click dblclick'`).\r\n\t *\r\n\t * @alternative\r\n\t * @method on(eventMap: Object): this\r\n\t * Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`\r\n\t */\r\n\ton: function (types, fn, context) {\r\n\r\n\t\t// types can be a map of types/handlers\r\n\t\tif (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\t// we don't process space-separated events here for performance;\r\n\t\t\t\t// it's a hot path since Layer uses the on(obj) syntax\r\n\t\t\t\tthis._on(type, types[type], fn);\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\t\t\t// types can be a string of space-separated words\r\n\t\t\ttypes = L.Util.splitWords(types);\r\n\r\n\t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n\t\t\t\tthis._on(types[i], fn, context);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t/* @method off(type: String, fn?: Function, context?: Object): this\r\n\t * Removes a previously added listener function. If no function is specified, it will remove all the listeners of that particular event from the object. Note that if you passed a custom context to `on`, you must pass the same context to `off` in order to remove the listener.\r\n\t *\r\n\t * @alternative\r\n\t * @method off(eventMap: Object): this\r\n\t * Removes a set of type/listener pairs.\r\n\t *\r\n\t * @alternative\r\n\t * @method off: this\r\n\t * Removes all listeners to all events on the object.\r\n\t */\r\n\toff: function (types, fn, context) {\r\n\r\n\t\tif (!types) {\r\n\t\t\t// clear all listeners if called without arguments\r\n\t\t\tdelete this._events;\r\n\r\n\t\t} else if (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\tthis._off(type, types[type], fn);\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\t\t\ttypes = L.Util.splitWords(types);\r\n\r\n\t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n\t\t\t\tthis._off(types[i], fn, context);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// attach listener (without syntactic sugar now)\r\n\t_on: function (type, fn, context) {\r\n\t\tthis._events = this._events || {};\r\n\r\n\t\t/* get/init listeners for type */\r\n\t\tvar typeListeners = this._events[type];\r\n\t\tif (!typeListeners) {\r\n\t\t\ttypeListeners = [];\r\n\t\t\tthis._events[type] = typeListeners;\r\n\t\t}\r\n\r\n\t\tif (context === this) {\r\n\t\t\t// Less memory footprint.\r\n\t\t\tcontext = undefined;\r\n\t\t}\r\n\t\tvar newListener = {fn: fn, ctx: context},\r\n\t\t    listeners = typeListeners;\r\n\r\n\t\t// check if fn already there\r\n\t\tfor (var i = 0, len = listeners.length; i < len; i++) {\r\n\t\t\tif (listeners[i].fn === fn && listeners[i].ctx === context) {\r\n\t\t\t\treturn;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tlisteners.push(newListener);\r\n\t\ttypeListeners.count++;\r\n\t},\r\n\r\n\t_off: function (type, fn, context) {\r\n\t\tvar listeners,\r\n\t\t    i,\r\n\t\t    len;\r\n\r\n\t\tif (!this._events) { return; }\r\n\r\n\t\tlisteners = this._events[type];\r\n\r\n\t\tif (!listeners) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tif (!fn) {\r\n\t\t\t// Set all removed listeners to noop so they are not called if remove happens in fire\r\n\t\t\tfor (i = 0, len = listeners.length; i < len; i++) {\r\n\t\t\t\tlisteners[i].fn = L.Util.falseFn;\r\n\t\t\t}\r\n\t\t\t// clear all listeners for a type if function isn't specified\r\n\t\t\tdelete this._events[type];\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tif (context === this) {\r\n\t\t\tcontext = undefined;\r\n\t\t}\r\n\r\n\t\tif (listeners) {\r\n\r\n\t\t\t// find fn and remove it\r\n\t\t\tfor (i = 0, len = listeners.length; i < len; i++) {\r\n\t\t\t\tvar l = listeners[i];\r\n\t\t\t\tif (l.ctx !== context) { continue; }\r\n\t\t\t\tif (l.fn === fn) {\r\n\r\n\t\t\t\t\t// set the removed listener to noop so that's not called if remove happens in fire\r\n\t\t\t\t\tl.fn = L.Util.falseFn;\r\n\r\n\t\t\t\t\tif (this._firingCount) {\r\n\t\t\t\t\t\t/* copy array in case events are being fired */\r\n\t\t\t\t\t\tthis._events[type] = listeners = listeners.slice();\r\n\t\t\t\t\t}\r\n\t\t\t\t\tlisteners.splice(i, 1);\r\n\r\n\t\t\t\t\treturn;\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t// @method fire(type: String, data?: Object, propagate?: Boolean): this\r\n\t// Fires an event of the specified type. You can optionally provide an data\r\n\t// object — the first argument of the listener function will contain its\r\n\t// properties. The event can optionally be propagated to event parents.\r\n\tfire: function (type, data, propagate) {\r\n\t\tif (!this.listens(type, propagate)) { return this; }\r\n\r\n\t\tvar event = L.Util.extend({}, data, {type: type, target: this});\r\n\r\n\t\tif (this._events) {\r\n\t\t\tvar listeners = this._events[type];\r\n\r\n\t\t\tif (listeners) {\r\n\t\t\t\tthis._firingCount = (this._firingCount + 1) || 1;\r\n\t\t\t\tfor (var i = 0, len = listeners.length; i < len; i++) {\r\n\t\t\t\t\tvar l = listeners[i];\r\n\t\t\t\t\tl.fn.call(l.ctx || this, event);\r\n\t\t\t\t}\r\n\r\n\t\t\t\tthis._firingCount--;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (propagate) {\r\n\t\t\t// propagate the event to parents (set with addEventParent)\r\n\t\t\tthis._propagateEvent(event);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method listens(type: String): Boolean\r\n\t// Returns `true` if a particular event type has any listeners attached to it.\r\n\tlistens: function (type, propagate) {\r\n\t\tvar listeners = this._events && this._events[type];\r\n\t\tif (listeners && listeners.length) { return true; }\r\n\r\n\t\tif (propagate) {\r\n\t\t\t// also check parents for listeners if event propagates\r\n\t\t\tfor (var id in this._eventParents) {\r\n\t\t\t\tif (this._eventParents[id].listens(type, propagate)) { return true; }\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn false;\r\n\t},\r\n\r\n\t// @method once(…): this\r\n\t// Behaves as [`on(…)`](#evented-on), except the listener will only get fired once and then removed.\r\n\tonce: function (types, fn, context) {\r\n\r\n\t\tif (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\tthis.once(type, types[type], fn);\r\n\t\t\t}\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tvar handler = L.bind(function () {\r\n\t\t\tthis\r\n\t\t\t    .off(types, fn, context)\r\n\t\t\t    .off(types, handler, context);\r\n\t\t}, this);\r\n\r\n\t\t// add a listener that's executed once and removed after that\r\n\t\treturn this\r\n\t\t    .on(types, fn, context)\r\n\t\t    .on(types, handler, context);\r\n\t},\r\n\r\n\t// @method addEventParent(obj: Evented): this\r\n\t// Adds an event parent - an `Evented` that will receive propagated events\r\n\taddEventParent: function (obj) {\r\n\t\tthis._eventParents = this._eventParents || {};\r\n\t\tthis._eventParents[L.stamp(obj)] = obj;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method removeEventParent(obj: Evented): this\r\n\t// Removes an event parent, so it will stop receiving propagated events\r\n\tremoveEventParent: function (obj) {\r\n\t\tif (this._eventParents) {\r\n\t\t\tdelete this._eventParents[L.stamp(obj)];\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_propagateEvent: function (e) {\r\n\t\tfor (var id in this._eventParents) {\r\n\t\t\tthis._eventParents[id].fire(e.type, L.extend({layer: e.target}, e), true);\r\n\t\t}\r\n\t}\r\n});\r\n\r\nvar proto = L.Evented.prototype;\r\n\r\n// aliases; we should ditch those eventually\r\n\r\n// @method addEventListener(…): this\r\n// Alias to [`on(…)`](#evented-on)\r\nproto.addEventListener = proto.on;\r\n\r\n// @method removeEventListener(…): this\r\n// Alias to [`off(…)`](#evented-off)\r\n\r\n// @method clearAllEventListeners(…): this\r\n// Alias to [`off()`](#evented-off)\r\nproto.removeEventListener = proto.clearAllEventListeners = proto.off;\r\n\r\n// @method addOneTimeEventListener(…): this\r\n// Alias to [`once(…)`](#evented-once)\r\nproto.addOneTimeEventListener = proto.once;\r\n\r\n// @method fireEvent(…): this\r\n// Alias to [`fire(…)`](#evented-fire)\r\nproto.fireEvent = proto.fire;\r\n\r\n// @method hasEventListeners(…): Boolean\r\n// Alias to [`listens(…)`](#evented-listens)\r\nproto.hasEventListeners = proto.listens;\r\n\r\nL.Mixin = {Events: proto};\r\n\n\n\n/*\r\n * @namespace Browser\r\n * @aka L.Browser\r\n *\r\n * A namespace with static properties for browser/feature detection used by Leaflet internally.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * if (L.Browser.ielt9) {\r\n *   alert('Upgrade your browser, dude!');\r\n * }\r\n * ```\r\n */\r\n\r\n(function () {\r\n\r\n\tvar ua = navigator.userAgent.toLowerCase(),\r\n\t    doc = document.documentElement,\r\n\r\n\t    ie = 'ActiveXObject' in window,\r\n\r\n\t    webkit    = ua.indexOf('webkit') !== -1,\r\n\t    phantomjs = ua.indexOf('phantom') !== -1,\r\n\t    android23 = ua.search('android [23]') !== -1,\r\n\t    chrome    = ua.indexOf('chrome') !== -1,\r\n\t    gecko     = ua.indexOf('gecko') !== -1  && !webkit && !window.opera && !ie,\r\n\r\n\t    win = navigator.platform.indexOf('Win') === 0,\r\n\r\n\t    mobile = typeof orientation !== 'undefined' || ua.indexOf('mobile') !== -1,\r\n\t    msPointer = !window.PointerEvent && window.MSPointerEvent,\r\n\t    pointer = window.PointerEvent || msPointer,\r\n\r\n\t    ie3d = ie && ('transition' in doc.style),\r\n\t    webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,\r\n\t    gecko3d = 'MozPerspective' in doc.style,\r\n\t    opera12 = 'OTransition' in doc.style;\r\n\r\n\r\n\tvar touch = !window.L_NO_TOUCH && (pointer || 'ontouchstart' in window ||\r\n\t\t\t(window.DocumentTouch && document instanceof window.DocumentTouch));\r\n\r\n\tL.Browser = {\r\n\r\n\t\t// @property ie: Boolean\r\n\t\t// `true` for all Internet Explorer versions (not Edge).\r\n\t\tie: ie,\r\n\r\n\t\t// @property ielt9: Boolean\r\n\t\t// `true` for Internet Explorer versions less than 9.\r\n\t\tielt9: ie && !document.addEventListener,\r\n\r\n\t\t// @property edge: Boolean\r\n\t\t// `true` for the Edge web browser.\r\n\t\tedge: 'msLaunchUri' in navigator && !('documentMode' in document),\r\n\r\n\t\t// @property webkit: Boolean\r\n\t\t// `true` for webkit-based browsers like Chrome and Safari (including mobile versions).\r\n\t\twebkit: webkit,\r\n\r\n\t\t// @property gecko: Boolean\r\n\t\t// `true` for gecko-based browsers like Firefox.\r\n\t\tgecko: gecko,\r\n\r\n\t\t// @property android: Boolean\r\n\t\t// `true` for any browser running on an Android platform.\r\n\t\tandroid: ua.indexOf('android') !== -1,\r\n\r\n\t\t// @property android23: Boolean\r\n\t\t// `true` for browsers running on Android 2 or Android 3.\r\n\t\tandroid23: android23,\r\n\r\n\t\t// @property chrome: Boolean\r\n\t\t// `true` for the Chrome browser.\r\n\t\tchrome: chrome,\r\n\r\n\t\t// @property safari: Boolean\r\n\t\t// `true` for the Safari browser.\r\n\t\tsafari: !chrome && ua.indexOf('safari') !== -1,\r\n\r\n\r\n\t\t// @property win: Boolean\r\n\t\t// `true` when the browser is running in a Windows platform\r\n\t\twin: win,\r\n\r\n\r\n\t\t// @property ie3d: Boolean\r\n\t\t// `true` for all Internet Explorer versions supporting CSS transforms.\r\n\t\tie3d: ie3d,\r\n\r\n\t\t// @property webkit3d: Boolean\r\n\t\t// `true` for webkit-based browsers supporting CSS transforms.\r\n\t\twebkit3d: webkit3d,\r\n\r\n\t\t// @property gecko3d: Boolean\r\n\t\t// `true` for gecko-based browsers supporting CSS transforms.\r\n\t\tgecko3d: gecko3d,\r\n\r\n\t\t// @property opera12: Boolean\r\n\t\t// `true` for the Opera browser supporting CSS transforms (version 12 or later).\r\n\t\topera12: opera12,\r\n\r\n\t\t// @property any3d: Boolean\r\n\t\t// `true` for all browsers supporting CSS transforms.\r\n\t\tany3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantomjs,\r\n\r\n\r\n\t\t// @property mobile: Boolean\r\n\t\t// `true` for all browsers running in a mobile device.\r\n\t\tmobile: mobile,\r\n\r\n\t\t// @property mobileWebkit: Boolean\r\n\t\t// `true` for all webkit-based browsers in a mobile device.\r\n\t\tmobileWebkit: mobile && webkit,\r\n\r\n\t\t// @property mobileWebkit3d: Boolean\r\n\t\t// `true` for all webkit-based browsers in a mobile device supporting CSS transforms.\r\n\t\tmobileWebkit3d: mobile && webkit3d,\r\n\r\n\t\t// @property mobileOpera: Boolean\r\n\t\t// `true` for the Opera browser in a mobile device.\r\n\t\tmobileOpera: mobile && window.opera,\r\n\r\n\t\t// @property mobileGecko: Boolean\r\n\t\t// `true` for gecko-based browsers running in a mobile device.\r\n\t\tmobileGecko: mobile && gecko,\r\n\r\n\r\n\t\t// @property touch: Boolean\r\n\t\t// `true` for all browsers supporting [touch events](https://developer.mozilla.org/docs/Web/API/Touch_events).\r\n\t\ttouch: !!touch,\r\n\r\n\t\t// @property msPointer: Boolean\r\n\t\t// `true` for browsers implementing the Microsoft touch events model (notably IE10).\r\n\t\tmsPointer: !!msPointer,\r\n\r\n\t\t// @property pointer: Boolean\r\n\t\t// `true` for all browsers supporting [pointer events](https://msdn.microsoft.com/en-us/library/dn433244%28v=vs.85%29.aspx).\r\n\t\tpointer: !!pointer,\r\n\r\n\r\n\t\t// @property retina: Boolean\r\n\t\t// `true` for browsers on a high-resolution \"retina\" screen.\r\n\t\tretina: (window.devicePixelRatio || (window.screen.deviceXDPI / window.screen.logicalXDPI)) > 1\r\n\t};\r\n\r\n}());\r\n\n\n\n/*\r\n * @class Point\r\n * @aka L.Point\r\n *\r\n * Represents a point with `x` and `y` coordinates in pixels.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var point = L.point(200, 300);\r\n * ```\r\n *\r\n * All Leaflet methods and options that accept `Point` objects also accept them in a simple Array form (unless noted otherwise), so these lines are equivalent:\r\n *\r\n * ```js\r\n * map.panBy([200, 300]);\r\n * map.panBy(L.point(200, 300));\r\n * ```\r\n */\r\n\r\nL.Point = function (x, y, round) {\r\n\t// @property x: Number; The `x` coordinate of the point\r\n\tthis.x = (round ? Math.round(x) : x);\r\n\t// @property y: Number; The `y` coordinate of the point\r\n\tthis.y = (round ? Math.round(y) : y);\r\n};\r\n\r\nL.Point.prototype = {\r\n\r\n\t// @method clone(): Point\r\n\t// Returns a copy of the current point.\r\n\tclone: function () {\r\n\t\treturn new L.Point(this.x, this.y);\r\n\t},\r\n\r\n\t// @method add(otherPoint: Point): Point\r\n\t// Returns the result of addition of the current and the given points.\r\n\tadd: function (point) {\r\n\t\t// non-destructive, returns a new point\r\n\t\treturn this.clone()._add(L.point(point));\r\n\t},\r\n\r\n\t_add: function (point) {\r\n\t\t// destructive, used directly for performance in situations where it's safe to modify existing point\r\n\t\tthis.x += point.x;\r\n\t\tthis.y += point.y;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method subtract(otherPoint: Point): Point\r\n\t// Returns the result of subtraction of the given point from the current.\r\n\tsubtract: function (point) {\r\n\t\treturn this.clone()._subtract(L.point(point));\r\n\t},\r\n\r\n\t_subtract: function (point) {\r\n\t\tthis.x -= point.x;\r\n\t\tthis.y -= point.y;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method divideBy(num: Number): Point\r\n\t// Returns the result of division of the current point by the given number.\r\n\tdivideBy: function (num) {\r\n\t\treturn this.clone()._divideBy(num);\r\n\t},\r\n\r\n\t_divideBy: function (num) {\r\n\t\tthis.x /= num;\r\n\t\tthis.y /= num;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method multiplyBy(num: Number): Point\r\n\t// Returns the result of multiplication of the current point by the given number.\r\n\tmultiplyBy: function (num) {\r\n\t\treturn this.clone()._multiplyBy(num);\r\n\t},\r\n\r\n\t_multiplyBy: function (num) {\r\n\t\tthis.x *= num;\r\n\t\tthis.y *= num;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method scaleBy(scale: Point): Point\r\n\t// Multiply each coordinate of the current point by each coordinate of\r\n\t// `scale`. In linear algebra terms, multiply the point by the\r\n\t// [scaling matrix](https://en.wikipedia.org/wiki/Scaling_%28geometry%29#Matrix_representation)\r\n\t// defined by `scale`.\r\n\tscaleBy: function (point) {\r\n\t\treturn new L.Point(this.x * point.x, this.y * point.y);\r\n\t},\r\n\r\n\t// @method unscaleBy(scale: Point): Point\r\n\t// Inverse of `scaleBy`. Divide each coordinate of the current point by\r\n\t// each coordinate of `scale`.\r\n\tunscaleBy: function (point) {\r\n\t\treturn new L.Point(this.x / point.x, this.y / point.y);\r\n\t},\r\n\r\n\t// @method round(): Point\r\n\t// Returns a copy of the current point with rounded coordinates.\r\n\tround: function () {\r\n\t\treturn this.clone()._round();\r\n\t},\r\n\r\n\t_round: function () {\r\n\t\tthis.x = Math.round(this.x);\r\n\t\tthis.y = Math.round(this.y);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method floor(): Point\r\n\t// Returns a copy of the current point with floored coordinates (rounded down).\r\n\tfloor: function () {\r\n\t\treturn this.clone()._floor();\r\n\t},\r\n\r\n\t_floor: function () {\r\n\t\tthis.x = Math.floor(this.x);\r\n\t\tthis.y = Math.floor(this.y);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method ceil(): Point\r\n\t// Returns a copy of the current point with ceiled coordinates (rounded up).\r\n\tceil: function () {\r\n\t\treturn this.clone()._ceil();\r\n\t},\r\n\r\n\t_ceil: function () {\r\n\t\tthis.x = Math.ceil(this.x);\r\n\t\tthis.y = Math.ceil(this.y);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method distanceTo(otherPoint: Point): Number\r\n\t// Returns the cartesian distance between the current and the given points.\r\n\tdistanceTo: function (point) {\r\n\t\tpoint = L.point(point);\r\n\r\n\t\tvar x = point.x - this.x,\r\n\t\t    y = point.y - this.y;\r\n\r\n\t\treturn Math.sqrt(x * x + y * y);\r\n\t},\r\n\r\n\t// @method equals(otherPoint: Point): Boolean\r\n\t// Returns `true` if the given point has the same coordinates.\r\n\tequals: function (point) {\r\n\t\tpoint = L.point(point);\r\n\r\n\t\treturn point.x === this.x &&\r\n\t\t       point.y === this.y;\r\n\t},\r\n\r\n\t// @method contains(otherPoint: Point): Boolean\r\n\t// Returns `true` if both coordinates of the given point are less than the corresponding current point coordinates (in absolute values).\r\n\tcontains: function (point) {\r\n\t\tpoint = L.point(point);\r\n\r\n\t\treturn Math.abs(point.x) <= Math.abs(this.x) &&\r\n\t\t       Math.abs(point.y) <= Math.abs(this.y);\r\n\t},\r\n\r\n\t// @method toString(): String\r\n\t// Returns a string representation of the point for debugging purposes.\r\n\ttoString: function () {\r\n\t\treturn 'Point(' +\r\n\t\t        L.Util.formatNum(this.x) + ', ' +\r\n\t\t        L.Util.formatNum(this.y) + ')';\r\n\t}\r\n};\r\n\r\n// @factory L.point(x: Number, y: Number, round?: Boolean)\r\n// Creates a Point object with the given `x` and `y` coordinates. If optional `round` is set to true, rounds the `x` and `y` values.\r\n\r\n// @alternative\r\n// @factory L.point(coords: Number[])\r\n// Expects an array of the form `[x, y]` instead.\r\n\r\n// @alternative\r\n// @factory L.point(coords: Object)\r\n// Expects a plain object of the form `{x: Number, y: Number}` instead.\r\nL.point = function (x, y, round) {\r\n\tif (x instanceof L.Point) {\r\n\t\treturn x;\r\n\t}\r\n\tif (L.Util.isArray(x)) {\r\n\t\treturn new L.Point(x[0], x[1]);\r\n\t}\r\n\tif (x === undefined || x === null) {\r\n\t\treturn x;\r\n\t}\r\n\tif (typeof x === 'object' && 'x' in x && 'y' in x) {\r\n\t\treturn new L.Point(x.x, x.y);\r\n\t}\r\n\treturn new L.Point(x, y, round);\r\n};\r\n\n\n\n/*\r\n * @class Bounds\r\n * @aka L.Bounds\r\n *\r\n * Represents a rectangular area in pixel coordinates.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var p1 = L.point(10, 10),\r\n * p2 = L.point(40, 60),\r\n * bounds = L.bounds(p1, p2);\r\n * ```\r\n *\r\n * All Leaflet methods that accept `Bounds` objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:\r\n *\r\n * ```js\r\n * otherBounds.intersects([[10, 10], [40, 60]]);\r\n * ```\r\n */\r\n\r\nL.Bounds = function (a, b) {\r\n\tif (!a) { return; }\r\n\r\n\tvar points = b ? [a, b] : a;\r\n\r\n\tfor (var i = 0, len = points.length; i < len; i++) {\r\n\t\tthis.extend(points[i]);\r\n\t}\r\n};\r\n\r\nL.Bounds.prototype = {\r\n\t// @method extend(point: Point): this\r\n\t// Extends the bounds to contain the given point.\r\n\textend: function (point) { // (Point)\r\n\t\tpoint = L.point(point);\r\n\r\n\t\t// @property min: Point\r\n\t\t// The top left corner of the rectangle.\r\n\t\t// @property max: Point\r\n\t\t// The bottom right corner of the rectangle.\r\n\t\tif (!this.min && !this.max) {\r\n\t\t\tthis.min = point.clone();\r\n\t\t\tthis.max = point.clone();\r\n\t\t} else {\r\n\t\t\tthis.min.x = Math.min(point.x, this.min.x);\r\n\t\t\tthis.max.x = Math.max(point.x, this.max.x);\r\n\t\t\tthis.min.y = Math.min(point.y, this.min.y);\r\n\t\t\tthis.max.y = Math.max(point.y, this.max.y);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getCenter(round?: Boolean): Point\r\n\t// Returns the center point of the bounds.\r\n\tgetCenter: function (round) {\r\n\t\treturn new L.Point(\r\n\t\t        (this.min.x + this.max.x) / 2,\r\n\t\t        (this.min.y + this.max.y) / 2, round);\r\n\t},\r\n\r\n\t// @method getBottomLeft(): Point\r\n\t// Returns the bottom-left point of the bounds.\r\n\tgetBottomLeft: function () {\r\n\t\treturn new L.Point(this.min.x, this.max.y);\r\n\t},\r\n\r\n\t// @method getTopRight(): Point\r\n\t// Returns the top-right point of the bounds.\r\n\tgetTopRight: function () { // -> Point\r\n\t\treturn new L.Point(this.max.x, this.min.y);\r\n\t},\r\n\r\n\t// @method getSize(): Point\r\n\t// Returns the size of the given bounds\r\n\tgetSize: function () {\r\n\t\treturn this.max.subtract(this.min);\r\n\t},\r\n\r\n\t// @method contains(otherBounds: Bounds): Boolean\r\n\t// Returns `true` if the rectangle contains the given one.\r\n\t// @alternative\r\n\t// @method contains(point: Point): Boolean\r\n\t// Returns `true` if the rectangle contains the given point.\r\n\tcontains: function (obj) {\r\n\t\tvar min, max;\r\n\r\n\t\tif (typeof obj[0] === 'number' || obj instanceof L.Point) {\r\n\t\t\tobj = L.point(obj);\r\n\t\t} else {\r\n\t\t\tobj = L.bounds(obj);\r\n\t\t}\r\n\r\n\t\tif (obj instanceof L.Bounds) {\r\n\t\t\tmin = obj.min;\r\n\t\t\tmax = obj.max;\r\n\t\t} else {\r\n\t\t\tmin = max = obj;\r\n\t\t}\r\n\r\n\t\treturn (min.x >= this.min.x) &&\r\n\t\t       (max.x <= this.max.x) &&\r\n\t\t       (min.y >= this.min.y) &&\r\n\t\t       (max.y <= this.max.y);\r\n\t},\r\n\r\n\t// @method intersects(otherBounds: Bounds): Boolean\r\n\t// Returns `true` if the rectangle intersects the given bounds. Two bounds\r\n\t// intersect if they have at least one point in common.\r\n\tintersects: function (bounds) { // (Bounds) -> Boolean\r\n\t\tbounds = L.bounds(bounds);\r\n\r\n\t\tvar min = this.min,\r\n\t\t    max = this.max,\r\n\t\t    min2 = bounds.min,\r\n\t\t    max2 = bounds.max,\r\n\t\t    xIntersects = (max2.x >= min.x) && (min2.x <= max.x),\r\n\t\t    yIntersects = (max2.y >= min.y) && (min2.y <= max.y);\r\n\r\n\t\treturn xIntersects && yIntersects;\r\n\t},\r\n\r\n\t// @method overlaps(otherBounds: Bounds): Boolean\r\n\t// Returns `true` if the rectangle overlaps the given bounds. Two bounds\r\n\t// overlap if their intersection is an area.\r\n\toverlaps: function (bounds) { // (Bounds) -> Boolean\r\n\t\tbounds = L.bounds(bounds);\r\n\r\n\t\tvar min = this.min,\r\n\t\t    max = this.max,\r\n\t\t    min2 = bounds.min,\r\n\t\t    max2 = bounds.max,\r\n\t\t    xOverlaps = (max2.x > min.x) && (min2.x < max.x),\r\n\t\t    yOverlaps = (max2.y > min.y) && (min2.y < max.y);\r\n\r\n\t\treturn xOverlaps && yOverlaps;\r\n\t},\r\n\r\n\tisValid: function () {\r\n\t\treturn !!(this.min && this.max);\r\n\t}\r\n};\r\n\r\n\r\n// @factory L.bounds(topLeft: Point, bottomRight: Point)\r\n// Creates a Bounds object from two coordinates (usually top-left and bottom-right corners).\r\n// @alternative\r\n// @factory L.bounds(points: Point[])\r\n// Creates a Bounds object from the points it contains\r\nL.bounds = function (a, b) {\r\n\tif (!a || a instanceof L.Bounds) {\r\n\t\treturn a;\r\n\t}\r\n\treturn new L.Bounds(a, b);\r\n};\r\n\n\n\n/*\r\n * @class Transformation\r\n * @aka L.Transformation\r\n *\r\n * Represents an affine transformation: a set of coefficients `a`, `b`, `c`, `d`\r\n * for transforming a point of a form `(x, y)` into `(a*x + b, c*y + d)` and doing\r\n * the reverse. Used by Leaflet in its projections code.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var transformation = new L.Transformation(2, 5, -1, 10),\r\n * \tp = L.point(1, 2),\r\n * \tp2 = transformation.transform(p), //  L.point(7, 8)\r\n * \tp3 = transformation.untransform(p2); //  L.point(1, 2)\r\n * ```\r\n */\r\n\r\n\r\n// factory new L.Transformation(a: Number, b: Number, c: Number, d: Number)\r\n// Creates a `Transformation` object with the given coefficients.\r\nL.Transformation = function (a, b, c, d) {\r\n\tthis._a = a;\r\n\tthis._b = b;\r\n\tthis._c = c;\r\n\tthis._d = d;\r\n};\r\n\r\nL.Transformation.prototype = {\r\n\t// @method transform(point: Point, scale?: Number): Point\r\n\t// Returns a transformed point, optionally multiplied by the given scale.\r\n\t// Only accepts actual `L.Point` instances, not arrays.\r\n\ttransform: function (point, scale) { // (Point, Number) -> Point\r\n\t\treturn this._transform(point.clone(), scale);\r\n\t},\r\n\r\n\t// destructive transform (faster)\r\n\t_transform: function (point, scale) {\r\n\t\tscale = scale || 1;\r\n\t\tpoint.x = scale * (this._a * point.x + this._b);\r\n\t\tpoint.y = scale * (this._c * point.y + this._d);\r\n\t\treturn point;\r\n\t},\r\n\r\n\t// @method untransform(point: Point, scale?: Number): Point\r\n\t// Returns the reverse transformation of the given point, optionally divided\r\n\t// by the given scale. Only accepts actual `L.Point` instances, not arrays.\r\n\tuntransform: function (point, scale) {\r\n\t\tscale = scale || 1;\r\n\t\treturn new L.Point(\r\n\t\t        (point.x / scale - this._b) / this._a,\r\n\t\t        (point.y / scale - this._d) / this._c);\r\n\t}\r\n};\r\n\n\n\n/*\r\n * @namespace DomUtil\r\n *\r\n * Utility functions to work with the [DOM](https://developer.mozilla.org/docs/Web/API/Document_Object_Model)\r\n * tree, used by Leaflet internally.\r\n *\r\n * Most functions expecting or returning a `HTMLElement` also work for\r\n * SVG elements. The only difference is that classes refer to CSS classes\r\n * in HTML and SVG classes in SVG.\r\n */\r\n\r\nL.DomUtil = {\r\n\r\n\t// @function get(id: String|HTMLElement): HTMLElement\r\n\t// Returns an element given its DOM id, or returns the element itself\r\n\t// if it was passed directly.\r\n\tget: function (id) {\r\n\t\treturn typeof id === 'string' ? document.getElementById(id) : id;\r\n\t},\r\n\r\n\t// @function getStyle(el: HTMLElement, styleAttrib: String): String\r\n\t// Returns the value for a certain style attribute on an element,\r\n\t// including computed values or values set through CSS.\r\n\tgetStyle: function (el, style) {\r\n\r\n\t\tvar value = el.style[style] || (el.currentStyle && el.currentStyle[style]);\r\n\r\n\t\tif ((!value || value === 'auto') && document.defaultView) {\r\n\t\t\tvar css = document.defaultView.getComputedStyle(el, null);\r\n\t\t\tvalue = css ? css[style] : null;\r\n\t\t}\r\n\r\n\t\treturn value === 'auto' ? null : value;\r\n\t},\r\n\r\n\t// @function create(tagName: String, className?: String, container?: HTMLElement): HTMLElement\r\n\t// Creates an HTML element with `tagName`, sets its class to `className`, and optionally appends it to `container` element.\r\n\tcreate: function (tagName, className, container) {\r\n\r\n\t\tvar el = document.createElement(tagName);\r\n\t\tel.className = className || '';\r\n\r\n\t\tif (container) {\r\n\t\t\tcontainer.appendChild(el);\r\n\t\t}\r\n\r\n\t\treturn el;\r\n\t},\r\n\r\n\t// @function remove(el: HTMLElement)\r\n\t// Removes `el` from its parent element\r\n\tremove: function (el) {\r\n\t\tvar parent = el.parentNode;\r\n\t\tif (parent) {\r\n\t\t\tparent.removeChild(el);\r\n\t\t}\r\n\t},\r\n\r\n\t// @function empty(el: HTMLElement)\r\n\t// Removes all of `el`'s children elements from `el`\r\n\tempty: function (el) {\r\n\t\twhile (el.firstChild) {\r\n\t\t\tel.removeChild(el.firstChild);\r\n\t\t}\r\n\t},\r\n\r\n\t// @function toFront(el: HTMLElement)\r\n\t// Makes `el` the last children of its parent, so it renders in front of the other children.\r\n\ttoFront: function (el) {\r\n\t\tel.parentNode.appendChild(el);\r\n\t},\r\n\r\n\t// @function toBack(el: HTMLElement)\r\n\t// Makes `el` the first children of its parent, so it renders back from the other children.\r\n\ttoBack: function (el) {\r\n\t\tvar parent = el.parentNode;\r\n\t\tparent.insertBefore(el, parent.firstChild);\r\n\t},\r\n\r\n\t// @function hasClass(el: HTMLElement, name: String): Boolean\r\n\t// Returns `true` if the element's class attribute contains `name`.\r\n\thasClass: function (el, name) {\r\n\t\tif (el.classList !== undefined) {\r\n\t\t\treturn el.classList.contains(name);\r\n\t\t}\r\n\t\tvar className = L.DomUtil.getClass(el);\r\n\t\treturn className.length > 0 && new RegExp('(^|\\\\s)' + name + '(\\\\s|$)').test(className);\r\n\t},\r\n\r\n\t// @function addClass(el: HTMLElement, name: String)\r\n\t// Adds `name` to the element's class attribute.\r\n\taddClass: function (el, name) {\r\n\t\tif (el.classList !== undefined) {\r\n\t\t\tvar classes = L.Util.splitWords(name);\r\n\t\t\tfor (var i = 0, len = classes.length; i < len; i++) {\r\n\t\t\t\tel.classList.add(classes[i]);\r\n\t\t\t}\r\n\t\t} else if (!L.DomUtil.hasClass(el, name)) {\r\n\t\t\tvar className = L.DomUtil.getClass(el);\r\n\t\t\tL.DomUtil.setClass(el, (className ? className + ' ' : '') + name);\r\n\t\t}\r\n\t},\r\n\r\n\t// @function removeClass(el: HTMLElement, name: String)\r\n\t// Removes `name` from the element's class attribute.\r\n\tremoveClass: function (el, name) {\r\n\t\tif (el.classList !== undefined) {\r\n\t\t\tel.classList.remove(name);\r\n\t\t} else {\r\n\t\t\tL.DomUtil.setClass(el, L.Util.trim((' ' + L.DomUtil.getClass(el) + ' ').replace(' ' + name + ' ', ' ')));\r\n\t\t}\r\n\t},\r\n\r\n\t// @function setClass(el: HTMLElement, name: String)\r\n\t// Sets the element's class.\r\n\tsetClass: function (el, name) {\r\n\t\tif (el.className.baseVal === undefined) {\r\n\t\t\tel.className = name;\r\n\t\t} else {\r\n\t\t\t// in case of SVG element\r\n\t\t\tel.className.baseVal = name;\r\n\t\t}\r\n\t},\r\n\r\n\t// @function getClass(el: HTMLElement): String\r\n\t// Returns the element's class.\r\n\tgetClass: function (el) {\r\n\t\treturn el.className.baseVal === undefined ? el.className : el.className.baseVal;\r\n\t},\r\n\r\n\t// @function setOpacity(el: HTMLElement, opacity: Number)\r\n\t// Set the opacity of an element (including old IE support).\r\n\t// `opacity` must be a number from `0` to `1`.\r\n\tsetOpacity: function (el, value) {\r\n\r\n\t\tif ('opacity' in el.style) {\r\n\t\t\tel.style.opacity = value;\r\n\r\n\t\t} else if ('filter' in el.style) {\r\n\t\t\tL.DomUtil._setOpacityIE(el, value);\r\n\t\t}\r\n\t},\r\n\r\n\t_setOpacityIE: function (el, value) {\r\n\t\tvar filter = false,\r\n\t\t    filterName = 'DXImageTransform.Microsoft.Alpha';\r\n\r\n\t\t// filters collection throws an error if we try to retrieve a filter that doesn't exist\r\n\t\ttry {\r\n\t\t\tfilter = el.filters.item(filterName);\r\n\t\t} catch (e) {\r\n\t\t\t// don't set opacity to 1 if we haven't already set an opacity,\r\n\t\t\t// it isn't needed and breaks transparent pngs.\r\n\t\t\tif (value === 1) { return; }\r\n\t\t}\r\n\r\n\t\tvalue = Math.round(value * 100);\r\n\r\n\t\tif (filter) {\r\n\t\t\tfilter.Enabled = (value !== 100);\r\n\t\t\tfilter.Opacity = value;\r\n\t\t} else {\r\n\t\t\tel.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';\r\n\t\t}\r\n\t},\r\n\r\n\t// @function testProp(props: String[]): String|false\r\n\t// Goes through the array of style names and returns the first name\r\n\t// that is a valid style name for an element. If no such name is found,\r\n\t// it returns false. Useful for vendor-prefixed styles like `transform`.\r\n\ttestProp: function (props) {\r\n\r\n\t\tvar style = document.documentElement.style;\r\n\r\n\t\tfor (var i = 0; i < props.length; i++) {\r\n\t\t\tif (props[i] in style) {\r\n\t\t\t\treturn props[i];\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn false;\r\n\t},\r\n\r\n\t// @function setTransform(el: HTMLElement, offset: Point, scale?: Number)\r\n\t// Resets the 3D CSS transform of `el` so it is translated by `offset` pixels\r\n\t// and optionally scaled by `scale`. Does not have an effect if the\r\n\t// browser doesn't support 3D CSS transforms.\r\n\tsetTransform: function (el, offset, scale) {\r\n\t\tvar pos = offset || new L.Point(0, 0);\r\n\r\n\t\tel.style[L.DomUtil.TRANSFORM] =\r\n\t\t\t(L.Browser.ie3d ?\r\n\t\t\t\t'translate(' + pos.x + 'px,' + pos.y + 'px)' :\r\n\t\t\t\t'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') +\r\n\t\t\t(scale ? ' scale(' + scale + ')' : '');\r\n\t},\r\n\r\n\t// @function setPosition(el: HTMLElement, position: Point)\r\n\t// Sets the position of `el` to coordinates specified by `position`,\r\n\t// using CSS translate or top/left positioning depending on the browser\r\n\t// (used by Leaflet internally to position its layers).\r\n\tsetPosition: function (el, point) { // (HTMLElement, Point[, Boolean])\r\n\r\n\t\t/*eslint-disable */\r\n\t\tel._leaflet_pos = point;\r\n\t\t/*eslint-enable */\r\n\r\n\t\tif (L.Browser.any3d) {\r\n\t\t\tL.DomUtil.setTransform(el, point);\r\n\t\t} else {\r\n\t\t\tel.style.left = point.x + 'px';\r\n\t\t\tel.style.top = point.y + 'px';\r\n\t\t}\r\n\t},\r\n\r\n\t// @function getPosition(el: HTMLElement): Point\r\n\t// Returns the coordinates of an element previously positioned with setPosition.\r\n\tgetPosition: function (el) {\r\n\t\t// this method is only used for elements previously positioned using setPosition,\r\n\t\t// so it's safe to cache the position for performance\r\n\r\n\t\treturn el._leaflet_pos || new L.Point(0, 0);\r\n\t}\r\n};\r\n\r\n\r\n(function () {\r\n\t// prefix style property names\r\n\r\n\t// @property TRANSFORM: String\r\n\t// Vendor-prefixed fransform style name (e.g. `'webkitTransform'` for WebKit).\r\n\tL.DomUtil.TRANSFORM = L.DomUtil.testProp(\r\n\t\t\t['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);\r\n\r\n\r\n\t// webkitTransition comes first because some browser versions that drop vendor prefix don't do\r\n\t// the same for the transitionend event, in particular the Android 4.1 stock browser\r\n\r\n\t// @property TRANSITION: String\r\n\t// Vendor-prefixed transform style name.\r\n\tvar transition = L.DomUtil.TRANSITION = L.DomUtil.testProp(\r\n\t\t\t['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);\r\n\r\n\tL.DomUtil.TRANSITION_END =\r\n\t\t\ttransition === 'webkitTransition' || transition === 'OTransition' ? transition + 'End' : 'transitionend';\r\n\r\n\t// @function disableTextSelection()\r\n\t// Prevents the user from generating `selectstart` DOM events, usually generated\r\n\t// when the user drags the mouse through a page with text. Used internally\r\n\t// by Leaflet to override the behaviour of any click-and-drag interaction on\r\n\t// the map. Affects drag interactions on the whole document.\r\n\r\n\t// @function enableTextSelection()\r\n\t// Cancels the effects of a previous [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection).\r\n\tif ('onselectstart' in document) {\r\n\t\tL.DomUtil.disableTextSelection = function () {\r\n\t\t\tL.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);\r\n\t\t};\r\n\t\tL.DomUtil.enableTextSelection = function () {\r\n\t\t\tL.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);\r\n\t\t};\r\n\r\n\t} else {\r\n\t\tvar userSelectProperty = L.DomUtil.testProp(\r\n\t\t\t['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);\r\n\r\n\t\tL.DomUtil.disableTextSelection = function () {\r\n\t\t\tif (userSelectProperty) {\r\n\t\t\t\tvar style = document.documentElement.style;\r\n\t\t\t\tthis._userSelect = style[userSelectProperty];\r\n\t\t\t\tstyle[userSelectProperty] = 'none';\r\n\t\t\t}\r\n\t\t};\r\n\t\tL.DomUtil.enableTextSelection = function () {\r\n\t\t\tif (userSelectProperty) {\r\n\t\t\t\tdocument.documentElement.style[userSelectProperty] = this._userSelect;\r\n\t\t\t\tdelete this._userSelect;\r\n\t\t\t}\r\n\t\t};\r\n\t}\r\n\r\n\t// @function disableImageDrag()\r\n\t// As [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection), but\r\n\t// for `dragstart` DOM events, usually generated when the user drags an image.\r\n\tL.DomUtil.disableImageDrag = function () {\r\n\t\tL.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);\r\n\t};\r\n\r\n\t// @function enableImageDrag()\r\n\t// Cancels the effects of a previous [`L.DomUtil.disableImageDrag`](#domutil-disabletextselection).\r\n\tL.DomUtil.enableImageDrag = function () {\r\n\t\tL.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);\r\n\t};\r\n\r\n\t// @function preventOutline(el: HTMLElement)\r\n\t// Makes the [outline](https://developer.mozilla.org/docs/Web/CSS/outline)\r\n\t// of the element `el` invisible. Used internally by Leaflet to prevent\r\n\t// focusable elements from displaying an outline when the user performs a\r\n\t// drag interaction on them.\r\n\tL.DomUtil.preventOutline = function (element) {\r\n\t\twhile (element.tabIndex === -1) {\r\n\t\t\telement = element.parentNode;\r\n\t\t}\r\n\t\tif (!element || !element.style) { return; }\r\n\t\tL.DomUtil.restoreOutline();\r\n\t\tthis._outlineElement = element;\r\n\t\tthis._outlineStyle = element.style.outline;\r\n\t\telement.style.outline = 'none';\r\n\t\tL.DomEvent.on(window, 'keydown', L.DomUtil.restoreOutline, this);\r\n\t};\r\n\r\n\t// @function restoreOutline()\r\n\t// Cancels the effects of a previous [`L.DomUtil.preventOutline`]().\r\n\tL.DomUtil.restoreOutline = function () {\r\n\t\tif (!this._outlineElement) { return; }\r\n\t\tthis._outlineElement.style.outline = this._outlineStyle;\r\n\t\tdelete this._outlineElement;\r\n\t\tdelete this._outlineStyle;\r\n\t\tL.DomEvent.off(window, 'keydown', L.DomUtil.restoreOutline, this);\r\n\t};\r\n})();\r\n\n\n\n/* @class LatLng\r\n * @aka L.LatLng\r\n *\r\n * Represents a geographical point with a certain latitude and longitude.\r\n *\r\n * @example\r\n *\r\n * ```\r\n * var latlng = L.latLng(50.5, 30.5);\r\n * ```\r\n *\r\n * All Leaflet methods that accept LatLng objects also accept them in a simple Array form and simple object form (unless noted otherwise), so these lines are equivalent:\r\n *\r\n * ```\r\n * map.panTo([50, 30]);\r\n * map.panTo({lon: 30, lat: 50});\r\n * map.panTo({lat: 50, lng: 30});\r\n * map.panTo(L.latLng(50, 30));\r\n * ```\r\n */\r\n\r\nL.LatLng = function (lat, lng, alt) {\r\n\tif (isNaN(lat) || isNaN(lng)) {\r\n\t\tthrow new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');\r\n\t}\r\n\r\n\t// @property lat: Number\r\n\t// Latitude in degrees\r\n\tthis.lat = +lat;\r\n\r\n\t// @property lng: Number\r\n\t// Longitude in degrees\r\n\tthis.lng = +lng;\r\n\r\n\t// @property alt: Number\r\n\t// Altitude in meters (optional)\r\n\tif (alt !== undefined) {\r\n\t\tthis.alt = +alt;\r\n\t}\r\n};\r\n\r\nL.LatLng.prototype = {\r\n\t// @method equals(otherLatLng: LatLng, maxMargin?: Number): Boolean\r\n\t// Returns `true` if the given `LatLng` point is at the same position (within a small margin of error). The margin of error can be overriden by setting `maxMargin` to a small number.\r\n\tequals: function (obj, maxMargin) {\r\n\t\tif (!obj) { return false; }\r\n\r\n\t\tobj = L.latLng(obj);\r\n\r\n\t\tvar margin = Math.max(\r\n\t\t        Math.abs(this.lat - obj.lat),\r\n\t\t        Math.abs(this.lng - obj.lng));\r\n\r\n\t\treturn margin <= (maxMargin === undefined ? 1.0E-9 : maxMargin);\r\n\t},\r\n\r\n\t// @method toString(): String\r\n\t// Returns a string representation of the point (for debugging purposes).\r\n\ttoString: function (precision) {\r\n\t\treturn 'LatLng(' +\r\n\t\t        L.Util.formatNum(this.lat, precision) + ', ' +\r\n\t\t        L.Util.formatNum(this.lng, precision) + ')';\r\n\t},\r\n\r\n\t// @method distanceTo(otherLatLng: LatLng): Number\r\n\t// Returns the distance (in meters) to the given `LatLng` calculated using the [Haversine formula](http://en.wikipedia.org/wiki/Haversine_formula).\r\n\tdistanceTo: function (other) {\r\n\t\treturn L.CRS.Earth.distance(this, L.latLng(other));\r\n\t},\r\n\r\n\t// @method wrap(): LatLng\r\n\t// Returns a new `LatLng` object with the longitude wrapped so it's always between -180 and +180 degrees.\r\n\twrap: function () {\r\n\t\treturn L.CRS.Earth.wrapLatLng(this);\r\n\t},\r\n\r\n\t// @method toBounds(sizeInMeters: Number): LatLngBounds\r\n\t// Returns a new `LatLngBounds` object in which each boundary is `sizeInMeters` meters apart from the `LatLng`.\r\n\ttoBounds: function (sizeInMeters) {\r\n\t\tvar latAccuracy = 180 * sizeInMeters / 40075017,\r\n\t\t    lngAccuracy = latAccuracy / Math.cos((Math.PI / 180) * this.lat);\r\n\r\n\t\treturn L.latLngBounds(\r\n\t\t        [this.lat - latAccuracy, this.lng - lngAccuracy],\r\n\t\t        [this.lat + latAccuracy, this.lng + lngAccuracy]);\r\n\t},\r\n\r\n\tclone: function () {\r\n\t\treturn new L.LatLng(this.lat, this.lng, this.alt);\r\n\t}\r\n};\r\n\r\n\r\n\r\n// @factory L.latLng(latitude: Number, longitude: Number, altitude?: Number): LatLng\r\n// Creates an object representing a geographical point with the given latitude and longitude (and optionally altitude).\r\n\r\n// @alternative\r\n// @factory L.latLng(coords: Array): LatLng\r\n// Expects an array of the form `[Number, Number]` or `[Number, Number, Number]` instead.\r\n\r\n// @alternative\r\n// @factory L.latLng(coords: Object): LatLng\r\n// Expects an plain object of the form `{lat: Number, lng: Number}` or `{lat: Number, lng: Number, alt: Number}` instead.\r\n\r\nL.latLng = function (a, b, c) {\r\n\tif (a instanceof L.LatLng) {\r\n\t\treturn a;\r\n\t}\r\n\tif (L.Util.isArray(a) && typeof a[0] !== 'object') {\r\n\t\tif (a.length === 3) {\r\n\t\t\treturn new L.LatLng(a[0], a[1], a[2]);\r\n\t\t}\r\n\t\tif (a.length === 2) {\r\n\t\t\treturn new L.LatLng(a[0], a[1]);\r\n\t\t}\r\n\t\treturn null;\r\n\t}\r\n\tif (a === undefined || a === null) {\r\n\t\treturn a;\r\n\t}\r\n\tif (typeof a === 'object' && 'lat' in a) {\r\n\t\treturn new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt);\r\n\t}\r\n\tif (b === undefined) {\r\n\t\treturn null;\r\n\t}\r\n\treturn new L.LatLng(a, b, c);\r\n};\r\n\n\n\n/*\r\n * @class LatLngBounds\r\n * @aka L.LatLngBounds\r\n *\r\n * Represents a rectangular geographical area on a map.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var corner1 = L.latLng(40.712, -74.227),\r\n * corner2 = L.latLng(40.774, -74.125),\r\n * bounds = L.latLngBounds(corner1, corner2);\r\n * ```\r\n *\r\n * All Leaflet methods that accept LatLngBounds objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:\r\n *\r\n * ```js\r\n * map.fitBounds([\r\n * \t[40.712, -74.227],\r\n * \t[40.774, -74.125]\r\n * ]);\r\n * ```\r\n *\r\n * Caution: if the area crosses the antimeridian (often confused with the International Date Line), you must specify corners _outside_ the [-180, 180] degrees longitude range.\r\n */\r\n\r\nL.LatLngBounds = function (corner1, corner2) { // (LatLng, LatLng) or (LatLng[])\r\n\tif (!corner1) { return; }\r\n\r\n\tvar latlngs = corner2 ? [corner1, corner2] : corner1;\r\n\r\n\tfor (var i = 0, len = latlngs.length; i < len; i++) {\r\n\t\tthis.extend(latlngs[i]);\r\n\t}\r\n};\r\n\r\nL.LatLngBounds.prototype = {\r\n\r\n\t// @method extend(latlng: LatLng): this\r\n\t// Extend the bounds to contain the given point\r\n\r\n\t// @alternative\r\n\t// @method extend(otherBounds: LatLngBounds): this\r\n\t// Extend the bounds to contain the given bounds\r\n\textend: function (obj) {\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    sw2, ne2;\r\n\r\n\t\tif (obj instanceof L.LatLng) {\r\n\t\t\tsw2 = obj;\r\n\t\t\tne2 = obj;\r\n\r\n\t\t} else if (obj instanceof L.LatLngBounds) {\r\n\t\t\tsw2 = obj._southWest;\r\n\t\t\tne2 = obj._northEast;\r\n\r\n\t\t\tif (!sw2 || !ne2) { return this; }\r\n\r\n\t\t} else {\r\n\t\t\treturn obj ? this.extend(L.latLng(obj) || L.latLngBounds(obj)) : this;\r\n\t\t}\r\n\r\n\t\tif (!sw && !ne) {\r\n\t\t\tthis._southWest = new L.LatLng(sw2.lat, sw2.lng);\r\n\t\t\tthis._northEast = new L.LatLng(ne2.lat, ne2.lng);\r\n\t\t} else {\r\n\t\t\tsw.lat = Math.min(sw2.lat, sw.lat);\r\n\t\t\tsw.lng = Math.min(sw2.lng, sw.lng);\r\n\t\t\tne.lat = Math.max(ne2.lat, ne.lat);\r\n\t\t\tne.lng = Math.max(ne2.lng, ne.lng);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method pad(bufferRatio: Number): LatLngBounds\r\n\t// Returns bigger bounds created by extending the current bounds by a given percentage in each direction.\r\n\tpad: function (bufferRatio) {\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,\r\n\t\t    widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;\r\n\r\n\t\treturn new L.LatLngBounds(\r\n\t\t        new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),\r\n\t\t        new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));\r\n\t},\r\n\r\n\t// @method getCenter(): LatLng\r\n\t// Returns the center point of the bounds.\r\n\tgetCenter: function () {\r\n\t\treturn new L.LatLng(\r\n\t\t        (this._southWest.lat + this._northEast.lat) / 2,\r\n\t\t        (this._southWest.lng + this._northEast.lng) / 2);\r\n\t},\r\n\r\n\t// @method getSouthWest(): LatLng\r\n\t// Returns the south-west point of the bounds.\r\n\tgetSouthWest: function () {\r\n\t\treturn this._southWest;\r\n\t},\r\n\r\n\t// @method getNorthEast(): LatLng\r\n\t// Returns the north-east point of the bounds.\r\n\tgetNorthEast: function () {\r\n\t\treturn this._northEast;\r\n\t},\r\n\r\n\t// @method getNorthWest(): LatLng\r\n\t// Returns the north-west point of the bounds.\r\n\tgetNorthWest: function () {\r\n\t\treturn new L.LatLng(this.getNorth(), this.getWest());\r\n\t},\r\n\r\n\t// @method getSouthEast(): LatLng\r\n\t// Returns the south-east point of the bounds.\r\n\tgetSouthEast: function () {\r\n\t\treturn new L.LatLng(this.getSouth(), this.getEast());\r\n\t},\r\n\r\n\t// @method getWest(): Number\r\n\t// Returns the west longitude of the bounds\r\n\tgetWest: function () {\r\n\t\treturn this._southWest.lng;\r\n\t},\r\n\r\n\t// @method getSouth(): Number\r\n\t// Returns the south latitude of the bounds\r\n\tgetSouth: function () {\r\n\t\treturn this._southWest.lat;\r\n\t},\r\n\r\n\t// @method getEast(): Number\r\n\t// Returns the east longitude of the bounds\r\n\tgetEast: function () {\r\n\t\treturn this._northEast.lng;\r\n\t},\r\n\r\n\t// @method getNorth(): Number\r\n\t// Returns the north latitude of the bounds\r\n\tgetNorth: function () {\r\n\t\treturn this._northEast.lat;\r\n\t},\r\n\r\n\t// @method contains(otherBounds: LatLngBounds): Boolean\r\n\t// Returns `true` if the rectangle contains the given one.\r\n\r\n\t// @alternative\r\n\t// @method contains (latlng: LatLng): Boolean\r\n\t// Returns `true` if the rectangle contains the given point.\r\n\tcontains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean\r\n\t\tif (typeof obj[0] === 'number' || obj instanceof L.LatLng) {\r\n\t\t\tobj = L.latLng(obj);\r\n\t\t} else {\r\n\t\t\tobj = L.latLngBounds(obj);\r\n\t\t}\r\n\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    sw2, ne2;\r\n\r\n\t\tif (obj instanceof L.LatLngBounds) {\r\n\t\t\tsw2 = obj.getSouthWest();\r\n\t\t\tne2 = obj.getNorthEast();\r\n\t\t} else {\r\n\t\t\tsw2 = ne2 = obj;\r\n\t\t}\r\n\r\n\t\treturn (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&\r\n\t\t       (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);\r\n\t},\r\n\r\n\t// @method intersects(otherBounds: LatLngBounds): Boolean\r\n\t// Returns `true` if the rectangle intersects the given bounds. Two bounds intersect if they have at least one point in common.\r\n\tintersects: function (bounds) {\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    sw2 = bounds.getSouthWest(),\r\n\t\t    ne2 = bounds.getNorthEast(),\r\n\r\n\t\t    latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),\r\n\t\t    lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);\r\n\r\n\t\treturn latIntersects && lngIntersects;\r\n\t},\r\n\r\n\t// @method overlaps(otherBounds: Bounds): Boolean\r\n\t// Returns `true` if the rectangle overlaps the given bounds. Two bounds overlap if their intersection is an area.\r\n\toverlaps: function (bounds) {\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\tvar sw = this._southWest,\r\n\t\t    ne = this._northEast,\r\n\t\t    sw2 = bounds.getSouthWest(),\r\n\t\t    ne2 = bounds.getNorthEast(),\r\n\r\n\t\t    latOverlaps = (ne2.lat > sw.lat) && (sw2.lat < ne.lat),\r\n\t\t    lngOverlaps = (ne2.lng > sw.lng) && (sw2.lng < ne.lng);\r\n\r\n\t\treturn latOverlaps && lngOverlaps;\r\n\t},\r\n\r\n\t// @method toBBoxString(): String\r\n\t// Returns a string with bounding box coordinates in a 'southwest_lng,southwest_lat,northeast_lng,northeast_lat' format. Useful for sending requests to web services that return geo data.\r\n\ttoBBoxString: function () {\r\n\t\treturn [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');\r\n\t},\r\n\r\n\t// @method equals(otherBounds: LatLngBounds): Boolean\r\n\t// Returns `true` if the rectangle is equivalent (within a small margin of error) to the given bounds.\r\n\tequals: function (bounds) {\r\n\t\tif (!bounds) { return false; }\r\n\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\treturn this._southWest.equals(bounds.getSouthWest()) &&\r\n\t\t       this._northEast.equals(bounds.getNorthEast());\r\n\t},\r\n\r\n\t// @method isValid(): Boolean\r\n\t// Returns `true` if the bounds are properly initialized.\r\n\tisValid: function () {\r\n\t\treturn !!(this._southWest && this._northEast);\r\n\t}\r\n};\r\n\r\n// TODO International date line?\r\n\r\n// @factory L.latLngBounds(corner1: LatLng, corner2: LatLng)\r\n// Creates a `LatLngBounds` object by defining two diagonally opposite corners of the rectangle.\r\n\r\n// @alternative\r\n// @factory L.latLngBounds(latlngs: LatLng[])\r\n// Creates a `LatLngBounds` object defined by the geographical points it contains. Very useful for zooming the map to fit a particular set of locations with [`fitBounds`](#map-fitbounds).\r\nL.latLngBounds = function (a, b) {\r\n\tif (a instanceof L.LatLngBounds) {\r\n\t\treturn a;\r\n\t}\r\n\treturn new L.LatLngBounds(a, b);\r\n};\r\n\n\n\n/*\r\n * @namespace Projection\r\n * @section\r\n * Leaflet comes with a set of already defined Projections out of the box:\r\n *\r\n * @projection L.Projection.LonLat\r\n *\r\n * Equirectangular, or Plate Carree projection — the most simple projection,\r\n * mostly used by GIS enthusiasts. Directly maps `x` as longitude, and `y` as\r\n * latitude. Also suitable for flat worlds, e.g. game maps. Used by the\r\n * `EPSG:3395` and `Simple` CRS.\r\n */\r\n\r\nL.Projection = {};\r\n\r\nL.Projection.LonLat = {\r\n\tproject: function (latlng) {\r\n\t\treturn new L.Point(latlng.lng, latlng.lat);\r\n\t},\r\n\r\n\tunproject: function (point) {\r\n\t\treturn new L.LatLng(point.y, point.x);\r\n\t},\r\n\r\n\tbounds: L.bounds([-180, -90], [180, 90])\r\n};\r\n\n\n\n/*\r\n * @namespace Projection\r\n * @projection L.Projection.SphericalMercator\r\n *\r\n * Spherical Mercator projection — the most common projection for online maps,\r\n * used by almost all free and commercial tile providers. Assumes that Earth is\r\n * a sphere. Used by the `EPSG:3857` CRS.\r\n */\r\n\r\nL.Projection.SphericalMercator = {\r\n\r\n\tR: 6378137,\r\n\tMAX_LATITUDE: 85.0511287798,\r\n\r\n\tproject: function (latlng) {\r\n\t\tvar d = Math.PI / 180,\r\n\t\t    max = this.MAX_LATITUDE,\r\n\t\t    lat = Math.max(Math.min(max, latlng.lat), -max),\r\n\t\t    sin = Math.sin(lat * d);\r\n\r\n\t\treturn new L.Point(\r\n\t\t\t\tthis.R * latlng.lng * d,\r\n\t\t\t\tthis.R * Math.log((1 + sin) / (1 - sin)) / 2);\r\n\t},\r\n\r\n\tunproject: function (point) {\r\n\t\tvar d = 180 / Math.PI;\r\n\r\n\t\treturn new L.LatLng(\r\n\t\t\t(2 * Math.atan(Math.exp(point.y / this.R)) - (Math.PI / 2)) * d,\r\n\t\t\tpoint.x * d / this.R);\r\n\t},\r\n\r\n\tbounds: (function () {\r\n\t\tvar d = 6378137 * Math.PI;\r\n\t\treturn L.bounds([-d, -d], [d, d]);\r\n\t})()\r\n};\r\n\n\n\n/*\r\n * @class CRS\r\n * @aka L.CRS\r\n * Abstract class that defines coordinate reference systems for projecting\r\n * geographical points into pixel (screen) coordinates and back (and to\r\n * coordinates in other units for [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services). See\r\n * [spatial reference system](http://en.wikipedia.org/wiki/Coordinate_reference_system).\r\n *\r\n * Leaflet defines the most usual CRSs by default. If you want to use a\r\n * CRS not defined by default, take a look at the\r\n * [Proj4Leaflet](https://github.com/kartena/Proj4Leaflet) plugin.\r\n */\r\n\r\nL.CRS = {\r\n\t// @method latLngToPoint(latlng: LatLng, zoom: Number): Point\r\n\t// Projects geographical coordinates into pixel coordinates for a given zoom.\r\n\tlatLngToPoint: function (latlng, zoom) {\r\n\t\tvar projectedPoint = this.projection.project(latlng),\r\n\t\t    scale = this.scale(zoom);\r\n\r\n\t\treturn this.transformation._transform(projectedPoint, scale);\r\n\t},\r\n\r\n\t// @method pointToLatLng(point: Point, zoom: Number): LatLng\r\n\t// The inverse of `latLngToPoint`. Projects pixel coordinates on a given\r\n\t// zoom into geographical coordinates.\r\n\tpointToLatLng: function (point, zoom) {\r\n\t\tvar scale = this.scale(zoom),\r\n\t\t    untransformedPoint = this.transformation.untransform(point, scale);\r\n\r\n\t\treturn this.projection.unproject(untransformedPoint);\r\n\t},\r\n\r\n\t// @method project(latlng: LatLng): Point\r\n\t// Projects geographical coordinates into coordinates in units accepted for\r\n\t// this CRS (e.g. meters for EPSG:3857, for passing it to WMS services).\r\n\tproject: function (latlng) {\r\n\t\treturn this.projection.project(latlng);\r\n\t},\r\n\r\n\t// @method unproject(point: Point): LatLng\r\n\t// Given a projected coordinate returns the corresponding LatLng.\r\n\t// The inverse of `project`.\r\n\tunproject: function (point) {\r\n\t\treturn this.projection.unproject(point);\r\n\t},\r\n\r\n\t// @method scale(zoom: Number): Number\r\n\t// Returns the scale used when transforming projected coordinates into\r\n\t// pixel coordinates for a particular zoom. For example, it returns\r\n\t// `256 * 2^zoom` for Mercator-based CRS.\r\n\tscale: function (zoom) {\r\n\t\treturn 256 * Math.pow(2, zoom);\r\n\t},\r\n\r\n\t// @method zoom(scale: Number): Number\r\n\t// Inverse of `scale()`, returns the zoom level corresponding to a scale\r\n\t// factor of `scale`.\r\n\tzoom: function (scale) {\r\n\t\treturn Math.log(scale / 256) / Math.LN2;\r\n\t},\r\n\r\n\t// @method getProjectedBounds(zoom: Number): Bounds\r\n\t// Returns the projection's bounds scaled and transformed for the provided `zoom`.\r\n\tgetProjectedBounds: function (zoom) {\r\n\t\tif (this.infinite) { return null; }\r\n\r\n\t\tvar b = this.projection.bounds,\r\n\t\t    s = this.scale(zoom),\r\n\t\t    min = this.transformation.transform(b.min, s),\r\n\t\t    max = this.transformation.transform(b.max, s);\r\n\r\n\t\treturn L.bounds(min, max);\r\n\t},\r\n\r\n\t// @method distance(latlng1: LatLng, latlng2: LatLng): Number\r\n\t// Returns the distance between two geographical coordinates.\r\n\r\n\t// @property code: String\r\n\t// Standard code name of the CRS passed into WMS services (e.g. `'EPSG:3857'`)\r\n\t//\r\n\t// @property wrapLng: Number[]\r\n\t// An array of two numbers defining whether the longitude (horizontal) coordinate\r\n\t// axis wraps around a given range and how. Defaults to `[-180, 180]` in most\r\n\t// geographical CRSs. If `undefined`, the longitude axis does not wrap around.\r\n\t//\r\n\t// @property wrapLat: Number[]\r\n\t// Like `wrapLng`, but for the latitude (vertical) axis.\r\n\r\n\t// wrapLng: [min, max],\r\n\t// wrapLat: [min, max],\r\n\r\n\t// @property infinite: Boolean\r\n\t// If true, the coordinate space will be unbounded (infinite in both axes)\r\n\tinfinite: false,\r\n\r\n\t// @method wrapLatLng(latlng: LatLng): LatLng\r\n\t// Returns a `LatLng` where lat and lng has been wrapped according to the\r\n\t// CRS's `wrapLat` and `wrapLng` properties, if they are outside the CRS's bounds.\r\n\twrapLatLng: function (latlng) {\r\n\t\tvar lng = this.wrapLng ? L.Util.wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng,\r\n\t\t    lat = this.wrapLat ? L.Util.wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat,\r\n\t\t    alt = latlng.alt;\r\n\r\n\t\treturn L.latLng(lat, lng, alt);\r\n\t}\r\n};\r\n\n\n\n/*\n * @namespace CRS\n * @crs L.CRS.Simple\n *\n * A simple CRS that maps longitude and latitude into `x` and `y` directly.\n * May be used for maps of flat surfaces (e.g. game maps). Note that the `y`\n * axis should still be inverted (going from bottom to top). `distance()` returns\n * simple euclidean distance.\n */\n\nL.CRS.Simple = L.extend({}, L.CRS, {\n\tprojection: L.Projection.LonLat,\n\ttransformation: new L.Transformation(1, 0, -1, 0),\n\n\tscale: function (zoom) {\n\t\treturn Math.pow(2, zoom);\n\t},\n\n\tzoom: function (scale) {\n\t\treturn Math.log(scale) / Math.LN2;\n\t},\n\n\tdistance: function (latlng1, latlng2) {\n\t\tvar dx = latlng2.lng - latlng1.lng,\n\t\t    dy = latlng2.lat - latlng1.lat;\n\n\t\treturn Math.sqrt(dx * dx + dy * dy);\n\t},\n\n\tinfinite: true\n});\n\n\n\n/*\n * @namespace CRS\n * @crs L.CRS.Earth\n *\n * Serves as the base for CRS that are global such that they cover the earth.\n * Can only be used as the base for other CRS and cannot be used directly,\n * since it does not have a `code`, `projection` or `transformation`. `distance()` returns\n * meters.\n */\n\nL.CRS.Earth = L.extend({}, L.CRS, {\n\twrapLng: [-180, 180],\n\n\t// Mean Earth Radius, as recommended for use by\n\t// the International Union of Geodesy and Geophysics,\n\t// see http://rosettacode.org/wiki/Haversine_formula\n\tR: 6371000,\n\n\t// distance between two geographical points using spherical law of cosines approximation\n\tdistance: function (latlng1, latlng2) {\n\t\tvar rad = Math.PI / 180,\n\t\t    lat1 = latlng1.lat * rad,\n\t\t    lat2 = latlng2.lat * rad,\n\t\t    a = Math.sin(lat1) * Math.sin(lat2) +\n\t\t        Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad);\n\n\t\treturn this.R * Math.acos(Math.min(a, 1));\n\t}\n});\n\n\n\n/*\r\n * @namespace CRS\r\n * @crs L.CRS.EPSG3857\r\n *\r\n * The most common CRS for online maps, used by almost all free and commercial\r\n * tile providers. Uses Spherical Mercator projection. Set in by default in\r\n * Map's `crs` option.\r\n */\r\n\r\nL.CRS.EPSG3857 = L.extend({}, L.CRS.Earth, {\r\n\tcode: 'EPSG:3857',\r\n\tprojection: L.Projection.SphericalMercator,\r\n\r\n\ttransformation: (function () {\r\n\t\tvar scale = 0.5 / (Math.PI * L.Projection.SphericalMercator.R);\r\n\t\treturn new L.Transformation(scale, 0.5, -scale, 0.5);\r\n\t}())\r\n});\r\n\r\nL.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {\r\n\tcode: 'EPSG:900913'\r\n});\r\n\n\n\n/*\r\n * @namespace CRS\r\n * @crs L.CRS.EPSG4326\r\n *\r\n * A common CRS among GIS enthusiasts. Uses simple Equirectangular projection.\r\n *\r\n * Leaflet 1.0.x complies with the [TMS coordinate scheme for EPSG:4326](https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification#global-geodetic),\r\n * which is a breaking change from 0.7.x behaviour.  If you are using a `TileLayer`\r\n * with this CRS, ensure that there are two 256x256 pixel tiles covering the\r\n * whole earth at zoom level zero, and that the tile coordinate origin is (-180,+90),\r\n * or (-180,-90) for `TileLayer`s with [the `tms` option](#tilelayer-tms) set.\r\n */\r\n\r\nL.CRS.EPSG4326 = L.extend({}, L.CRS.Earth, {\r\n\tcode: 'EPSG:4326',\r\n\tprojection: L.Projection.LonLat,\r\n\ttransformation: new L.Transformation(1 / 180, 1, -1 / 180, 0.5)\r\n});\r\n\n\n\n/*\r\n * @class Map\r\n * @aka L.Map\r\n * @inherits Evented\r\n *\r\n * The central class of the API — it is used to create a map on a page and manipulate it.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * // initialize the map on the \"map\" div with a given center and zoom\r\n * var map = L.map('map', {\r\n * \tcenter: [51.505, -0.09],\r\n * \tzoom: 13\r\n * });\r\n * ```\r\n *\r\n */\r\n\r\nL.Map = L.Evented.extend({\r\n\r\n\toptions: {\r\n\t\t// @section Map State Options\r\n\t\t// @option crs: CRS = L.CRS.EPSG3857\r\n\t\t// The [Coordinate Reference System](#crs) to use. Don't change this if you're not\r\n\t\t// sure what it means.\r\n\t\tcrs: L.CRS.EPSG3857,\r\n\r\n\t\t// @option center: LatLng = undefined\r\n\t\t// Initial geographic center of the map\r\n\t\tcenter: undefined,\r\n\r\n\t\t// @option zoom: Number = undefined\r\n\t\t// Initial map zoom level\r\n\t\tzoom: undefined,\r\n\r\n\t\t// @option minZoom: Number = undefined\r\n\t\t// Minimum zoom level of the map. Overrides any `minZoom` option set on map layers.\r\n\t\tminZoom: undefined,\r\n\r\n\t\t// @option maxZoom: Number = undefined\r\n\t\t// Maximum zoom level of the map. Overrides any `maxZoom` option set on map layers.\r\n\t\tmaxZoom: undefined,\r\n\r\n\t\t// @option layers: Layer[] = []\r\n\t\t// Array of layers that will be added to the map initially\r\n\t\tlayers: [],\r\n\r\n\t\t// @option maxBounds: LatLngBounds = null\r\n\t\t// When this option is set, the map restricts the view to the given\r\n\t\t// geographical bounds, bouncing the user back when he tries to pan\r\n\t\t// outside the view. To set the restriction dynamically, use\r\n\t\t// [`setMaxBounds`](#map-setmaxbounds) method.\r\n\t\tmaxBounds: undefined,\r\n\r\n\t\t// @option renderer: Renderer = *\r\n\t\t// The default method for drawing vector layers on the map. `L.SVG`\r\n\t\t// or `L.Canvas` by default depending on browser support.\r\n\t\trenderer: undefined,\r\n\r\n\r\n\t\t// @section Animation Options\r\n\t\t// @option zoomAnimation: Boolean = true\r\n\t\t// Whether the map zoom animation is enabled. By default it's enabled\r\n\t\t// in all browsers that support CSS3 Transitions except Android.\r\n\t\tzoomAnimation: true,\r\n\r\n\t\t// @option zoomAnimationThreshold: Number = 4\r\n\t\t// Won't animate zoom if the zoom difference exceeds this value.\r\n\t\tzoomAnimationThreshold: 4,\r\n\r\n\t\t// @option fadeAnimation: Boolean = true\r\n\t\t// Whether the tile fade animation is enabled. By default it's enabled\r\n\t\t// in all browsers that support CSS3 Transitions except Android.\r\n\t\tfadeAnimation: true,\r\n\r\n\t\t// @option markerZoomAnimation: Boolean = true\r\n\t\t// Whether markers animate their zoom with the zoom animation, if disabled\r\n\t\t// they will disappear for the length of the animation. By default it's\r\n\t\t// enabled in all browsers that support CSS3 Transitions except Android.\r\n\t\tmarkerZoomAnimation: true,\r\n\r\n\t\t// @option transform3DLimit: Number = 2^23\r\n\t\t// Defines the maximum size of a CSS translation transform. The default\r\n\t\t// value should not be changed unless a web browser positions layers in\r\n\t\t// the wrong place after doing a large `panBy`.\r\n\t\ttransform3DLimit: 8388608, // Precision limit of a 32-bit float\r\n\r\n\t\t// @section Interaction Options\r\n\t\t// @option zoomSnap: Number = 1\r\n\t\t// Forces the map's zoom level to always be a multiple of this, particularly\r\n\t\t// right after a [`fitBounds()`](#map-fitbounds) or a pinch-zoom.\r\n\t\t// By default, the zoom level snaps to the nearest integer; lower values\r\n\t\t// (e.g. `0.5` or `0.1`) allow for greater granularity. A value of `0`\r\n\t\t// means the zoom level will not be snapped after `fitBounds` or a pinch-zoom.\r\n\t\tzoomSnap: 1,\r\n\r\n\t\t// @option zoomDelta: Number = 1\r\n\t\t// Controls how much the map's zoom level will change after a\r\n\t\t// [`zoomIn()`](#map-zoomin), [`zoomOut()`](#map-zoomout), pressing `+`\r\n\t\t// or `-` on the keyboard, or using the [zoom controls](#control-zoom).\r\n\t\t// Values smaller than `1` (e.g. `0.5`) allow for greater granularity.\r\n\t\tzoomDelta: 1,\r\n\r\n\t\t// @option trackResize: Boolean = true\r\n\t\t// Whether the map automatically handles browser window resize to update itself.\r\n\t\ttrackResize: true\r\n\t},\r\n\r\n\tinitialize: function (id, options) { // (HTMLElement or String, Object)\r\n\t\toptions = L.setOptions(this, options);\r\n\r\n\t\tthis._initContainer(id);\r\n\t\tthis._initLayout();\r\n\r\n\t\t// hack for https://github.com/Leaflet/Leaflet/issues/1980\r\n\t\tthis._onResize = L.bind(this._onResize, this);\r\n\r\n\t\tthis._initEvents();\r\n\r\n\t\tif (options.maxBounds) {\r\n\t\t\tthis.setMaxBounds(options.maxBounds);\r\n\t\t}\r\n\r\n\t\tif (options.zoom !== undefined) {\r\n\t\t\tthis._zoom = this._limitZoom(options.zoom);\r\n\t\t}\r\n\r\n\t\tif (options.center && options.zoom !== undefined) {\r\n\t\t\tthis.setView(L.latLng(options.center), options.zoom, {reset: true});\r\n\t\t}\r\n\r\n\t\tthis._handlers = [];\r\n\t\tthis._layers = {};\r\n\t\tthis._zoomBoundLayers = {};\r\n\t\tthis._sizeChanged = true;\r\n\r\n\t\tthis.callInitHooks();\r\n\r\n\t\t// don't animate on browsers without hardware-accelerated transitions or old Android/Opera\r\n\t\tthis._zoomAnimated = L.DomUtil.TRANSITION && L.Browser.any3d && !L.Browser.mobileOpera &&\r\n\t\t\t\tthis.options.zoomAnimation;\r\n\r\n\t\t// zoom transitions run with the same duration for all layers, so if one of transitionend events\r\n\t\t// happens after starting zoom animation (propagating to the map pane), we know that it ended globally\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tthis._createAnimProxy();\r\n\t\t\tL.DomEvent.on(this._proxy, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this);\r\n\t\t}\r\n\r\n\t\tthis._addLayers(this.options.layers);\r\n\t},\r\n\r\n\r\n\t// @section Methods for modifying map state\r\n\r\n\t// @method setView(center: LatLng, zoom: Number, options?: Zoom/pan options): this\r\n\t// Sets the view of the map (geographical center and zoom) with the given\r\n\t// animation options.\r\n\tsetView: function (center, zoom, options) {\r\n\r\n\t\tzoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);\r\n\t\tcenter = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds);\r\n\t\toptions = options || {};\r\n\r\n\t\tthis._stop();\r\n\r\n\t\tif (this._loaded && !options.reset && options !== true) {\r\n\r\n\t\t\tif (options.animate !== undefined) {\r\n\t\t\t\toptions.zoom = L.extend({animate: options.animate}, options.zoom);\r\n\t\t\t\toptions.pan = L.extend({animate: options.animate, duration: options.duration}, options.pan);\r\n\t\t\t}\r\n\r\n\t\t\t// try animating pan or zoom\r\n\t\t\tvar moved = (this._zoom !== zoom) ?\r\n\t\t\t\tthis._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :\r\n\t\t\t\tthis._tryAnimatedPan(center, options.pan);\r\n\r\n\t\t\tif (moved) {\r\n\t\t\t\t// prevent resize handler call, the view will refresh after animation anyway\r\n\t\t\t\tclearTimeout(this._sizeTimer);\r\n\t\t\t\treturn this;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// animation didn't start, just reset the map view\r\n\t\tthis._resetView(center, zoom);\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setZoom(zoom: Number, options: Zoom/pan options): this\r\n\t// Sets the zoom of the map.\r\n\tsetZoom: function (zoom, options) {\r\n\t\tif (!this._loaded) {\r\n\t\t\tthis._zoom = zoom;\r\n\t\t\treturn this;\r\n\t\t}\r\n\t\treturn this.setView(this.getCenter(), zoom, {zoom: options});\r\n\t},\r\n\r\n\t// @method zoomIn(delta?: Number, options?: Zoom options): this\r\n\t// Increases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).\r\n\tzoomIn: function (delta, options) {\r\n\t\tdelta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1);\r\n\t\treturn this.setZoom(this._zoom + delta, options);\r\n\t},\r\n\r\n\t// @method zoomOut(delta?: Number, options?: Zoom options): this\r\n\t// Decreases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).\r\n\tzoomOut: function (delta, options) {\r\n\t\tdelta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1);\r\n\t\treturn this.setZoom(this._zoom - delta, options);\r\n\t},\r\n\r\n\t// @method setZoomAround(latlng: LatLng, zoom: Number, options: Zoom options): this\r\n\t// Zooms the map while keeping a specified geographical point on the map\r\n\t// stationary (e.g. used internally for scroll zoom and double-click zoom).\r\n\t// @alternative\r\n\t// @method setZoomAround(offset: Point, zoom: Number, options: Zoom options): this\r\n\t// Zooms the map while keeping a specified pixel on the map (relative to the top-left corner) stationary.\r\n\tsetZoomAround: function (latlng, zoom, options) {\r\n\t\tvar scale = this.getZoomScale(zoom),\r\n\t\t    viewHalf = this.getSize().divideBy(2),\r\n\t\t    containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),\r\n\r\n\t\t    centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),\r\n\t\t    newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));\r\n\r\n\t\treturn this.setView(newCenter, zoom, {zoom: options});\r\n\t},\r\n\r\n\t_getBoundsCenterZoom: function (bounds, options) {\r\n\r\n\t\toptions = options || {};\r\n\t\tbounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);\r\n\r\n\t\tvar paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),\r\n\t\t    paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),\r\n\r\n\t\t    zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));\r\n\r\n\t\tzoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom;\r\n\r\n\t\tvar paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),\r\n\r\n\t\t    swPoint = this.project(bounds.getSouthWest(), zoom),\r\n\t\t    nePoint = this.project(bounds.getNorthEast(), zoom),\r\n\t\t    center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);\r\n\r\n\t\treturn {\r\n\t\t\tcenter: center,\r\n\t\t\tzoom: zoom\r\n\t\t};\r\n\t},\r\n\r\n\t// @method fitBounds(bounds: LatLngBounds, options: fitBounds options): this\r\n\t// Sets a map view that contains the given geographical bounds with the\r\n\t// maximum zoom level possible.\r\n\tfitBounds: function (bounds, options) {\r\n\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\tif (!bounds.isValid()) {\r\n\t\t\tthrow new Error('Bounds are not valid.');\r\n\t\t}\r\n\r\n\t\tvar target = this._getBoundsCenterZoom(bounds, options);\r\n\t\treturn this.setView(target.center, target.zoom, options);\r\n\t},\r\n\r\n\t// @method fitWorld(options?: fitBounds options): this\r\n\t// Sets a map view that mostly contains the whole world with the maximum\r\n\t// zoom level possible.\r\n\tfitWorld: function (options) {\r\n\t\treturn this.fitBounds([[-90, -180], [90, 180]], options);\r\n\t},\r\n\r\n\t// @method panTo(latlng: LatLng, options?: Pan options): this\r\n\t// Pans the map to a given center.\r\n\tpanTo: function (center, options) { // (LatLng)\r\n\t\treturn this.setView(center, this._zoom, {pan: options});\r\n\t},\r\n\r\n\t// @method panBy(offset: Point): this\r\n\t// Pans the map by a given number of pixels (animated).\r\n\tpanBy: function (offset, options) {\r\n\t\toffset = L.point(offset).round();\r\n\t\toptions = options || {};\r\n\r\n\t\tif (!offset.x && !offset.y) {\r\n\t\t\treturn this.fire('moveend');\r\n\t\t}\r\n\t\t// If we pan too far, Chrome gets issues with tiles\r\n\t\t// and makes them disappear or appear in the wrong place (slightly offset) #2602\r\n\t\tif (options.animate !== true && !this.getSize().contains(offset)) {\r\n\t\t\tthis._resetView(this.unproject(this.project(this.getCenter()).add(offset)), this.getZoom());\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tif (!this._panAnim) {\r\n\t\t\tthis._panAnim = new L.PosAnimation();\r\n\r\n\t\t\tthis._panAnim.on({\r\n\t\t\t\t'step': this._onPanTransitionStep,\r\n\t\t\t\t'end': this._onPanTransitionEnd\r\n\t\t\t}, this);\r\n\t\t}\r\n\r\n\t\t// don't fire movestart if animating inertia\r\n\t\tif (!options.noMoveStart) {\r\n\t\t\tthis.fire('movestart');\r\n\t\t}\r\n\r\n\t\t// animate pan unless animate: false specified\r\n\t\tif (options.animate !== false) {\r\n\t\t\tL.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');\r\n\r\n\t\t\tvar newPos = this._getMapPanePos().subtract(offset).round();\r\n\t\t\tthis._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);\r\n\t\t} else {\r\n\t\t\tthis._rawPanBy(offset);\r\n\t\t\tthis.fire('move').fire('moveend');\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method flyTo(latlng: LatLng, zoom?: Number, options?: Zoom/pan options): this\r\n\t// Sets the view of the map (geographical center and zoom) performing a smooth\r\n\t// pan-zoom animation.\r\n\tflyTo: function (targetCenter, targetZoom, options) {\r\n\r\n\t\toptions = options || {};\r\n\t\tif (options.animate === false || !L.Browser.any3d) {\r\n\t\t\treturn this.setView(targetCenter, targetZoom, options);\r\n\t\t}\r\n\r\n\t\tthis._stop();\r\n\r\n\t\tvar from = this.project(this.getCenter()),\r\n\t\t    to = this.project(targetCenter),\r\n\t\t    size = this.getSize(),\r\n\t\t    startZoom = this._zoom;\r\n\r\n\t\ttargetCenter = L.latLng(targetCenter);\r\n\t\ttargetZoom = targetZoom === undefined ? startZoom : targetZoom;\r\n\r\n\t\tvar w0 = Math.max(size.x, size.y),\r\n\t\t    w1 = w0 * this.getZoomScale(startZoom, targetZoom),\r\n\t\t    u1 = (to.distanceTo(from)) || 1,\r\n\t\t    rho = 1.42,\r\n\t\t    rho2 = rho * rho;\r\n\r\n\t\tfunction r(i) {\r\n\t\t\tvar s1 = i ? -1 : 1,\r\n\t\t\t    s2 = i ? w1 : w0,\r\n\t\t\t    t1 = w1 * w1 - w0 * w0 + s1 * rho2 * rho2 * u1 * u1,\r\n\t\t\t    b1 = 2 * s2 * rho2 * u1,\r\n\t\t\t    b = t1 / b1,\r\n\t\t\t    sq = Math.sqrt(b * b + 1) - b;\r\n\r\n\t\t\t    // workaround for floating point precision bug when sq = 0, log = -Infinite,\r\n\t\t\t    // thus triggering an infinite loop in flyTo\r\n\t\t\t    var log = sq < 0.000000001 ? -18 : Math.log(sq);\r\n\r\n\t\t\treturn log;\r\n\t\t}\r\n\r\n\t\tfunction sinh(n) { return (Math.exp(n) - Math.exp(-n)) / 2; }\r\n\t\tfunction cosh(n) { return (Math.exp(n) + Math.exp(-n)) / 2; }\r\n\t\tfunction tanh(n) { return sinh(n) / cosh(n); }\r\n\r\n\t\tvar r0 = r(0);\r\n\r\n\t\tfunction w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); }\r\n\t\tfunction u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; }\r\n\r\n\t\tfunction easeOut(t) { return 1 - Math.pow(1 - t, 1.5); }\r\n\r\n\t\tvar start = Date.now(),\r\n\t\t    S = (r(1) - r0) / rho,\r\n\t\t    duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8;\r\n\r\n\t\tfunction frame() {\r\n\t\t\tvar t = (Date.now() - start) / duration,\r\n\t\t\t    s = easeOut(t) * S;\r\n\r\n\t\t\tif (t <= 1) {\r\n\t\t\t\tthis._flyToFrame = L.Util.requestAnimFrame(frame, this);\r\n\r\n\t\t\t\tthis._move(\r\n\t\t\t\t\tthis.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom),\r\n\t\t\t\t\tthis.getScaleZoom(w0 / w(s), startZoom),\r\n\t\t\t\t\t{flyTo: true});\r\n\r\n\t\t\t} else {\r\n\t\t\t\tthis\r\n\t\t\t\t\t._move(targetCenter, targetZoom)\r\n\t\t\t\t\t._moveEnd(true);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tthis._moveStart(true);\r\n\r\n\t\tframe.call(this);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method flyToBounds(bounds: LatLngBounds, options?: fitBounds options): this\r\n\t// Sets the view of the map with a smooth animation like [`flyTo`](#map-flyto),\r\n\t// but takes a bounds parameter like [`fitBounds`](#map-fitbounds).\r\n\tflyToBounds: function (bounds, options) {\r\n\t\tvar target = this._getBoundsCenterZoom(bounds, options);\r\n\t\treturn this.flyTo(target.center, target.zoom, options);\r\n\t},\r\n\r\n\t// @method setMaxBounds(bounds: Bounds): this\r\n\t// Restricts the map view to the given bounds (see the [maxBounds](#map-maxbounds) option).\r\n\tsetMaxBounds: function (bounds) {\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\r\n\t\tif (!bounds.isValid()) {\r\n\t\t\tthis.options.maxBounds = null;\r\n\t\t\treturn this.off('moveend', this._panInsideMaxBounds);\r\n\t\t} else if (this.options.maxBounds) {\r\n\t\t\tthis.off('moveend', this._panInsideMaxBounds);\r\n\t\t}\r\n\r\n\t\tthis.options.maxBounds = bounds;\r\n\r\n\t\tif (this._loaded) {\r\n\t\t\tthis._panInsideMaxBounds();\r\n\t\t}\r\n\r\n\t\treturn this.on('moveend', this._panInsideMaxBounds);\r\n\t},\r\n\r\n\t// @method setMinZoom(zoom: Number): this\r\n\t// Sets the lower limit for the available zoom levels (see the [minZoom](#map-minzoom) option).\r\n\tsetMinZoom: function (zoom) {\r\n\t\tthis.options.minZoom = zoom;\r\n\r\n\t\tif (this._loaded && this.getZoom() < this.options.minZoom) {\r\n\t\t\treturn this.setZoom(zoom);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setMaxZoom(zoom: Number): this\r\n\t// Sets the upper limit for the available zoom levels (see the [maxZoom](#map-maxzoom) option).\r\n\tsetMaxZoom: function (zoom) {\r\n\t\tthis.options.maxZoom = zoom;\r\n\r\n\t\tif (this._loaded && (this.getZoom() > this.options.maxZoom)) {\r\n\t\t\treturn this.setZoom(zoom);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method panInsideBounds(bounds: LatLngBounds, options?: Pan options): this\r\n\t// Pans the map to the closest view that would lie inside the given bounds (if it's not already), controlling the animation using the options specific, if any.\r\n\tpanInsideBounds: function (bounds, options) {\r\n\t\tthis._enforcingBounds = true;\r\n\t\tvar center = this.getCenter(),\r\n\t\t    newCenter = this._limitCenter(center, this._zoom, L.latLngBounds(bounds));\r\n\r\n\t\tif (!center.equals(newCenter)) {\r\n\t\t\tthis.panTo(newCenter, options);\r\n\t\t}\r\n\r\n\t\tthis._enforcingBounds = false;\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method invalidateSize(options: Zoom/Pan options): this\r\n\t// Checks if the map container size changed and updates the map if so —\r\n\t// call it after you've changed the map size dynamically, also animating\r\n\t// pan by default. If `options.pan` is `false`, panning will not occur.\r\n\t// If `options.debounceMoveend` is `true`, it will delay `moveend` event so\r\n\t// that it doesn't happen often even if the method is called many\r\n\t// times in a row.\r\n\r\n\t// @alternative\r\n\t// @method invalidateSize(animate: Boolean): this\r\n\t// Checks if the map container size changed and updates the map if so —\r\n\t// call it after you've changed the map size dynamically, also animating\r\n\t// pan by default.\r\n\tinvalidateSize: function (options) {\r\n\t\tif (!this._loaded) { return this; }\r\n\r\n\t\toptions = L.extend({\r\n\t\t\tanimate: false,\r\n\t\t\tpan: true\r\n\t\t}, options === true ? {animate: true} : options);\r\n\r\n\t\tvar oldSize = this.getSize();\r\n\t\tthis._sizeChanged = true;\r\n\t\tthis._lastCenter = null;\r\n\r\n\t\tvar newSize = this.getSize(),\r\n\t\t    oldCenter = oldSize.divideBy(2).round(),\r\n\t\t    newCenter = newSize.divideBy(2).round(),\r\n\t\t    offset = oldCenter.subtract(newCenter);\r\n\r\n\t\tif (!offset.x && !offset.y) { return this; }\r\n\r\n\t\tif (options.animate && options.pan) {\r\n\t\t\tthis.panBy(offset);\r\n\r\n\t\t} else {\r\n\t\t\tif (options.pan) {\r\n\t\t\t\tthis._rawPanBy(offset);\r\n\t\t\t}\r\n\r\n\t\t\tthis.fire('move');\r\n\r\n\t\t\tif (options.debounceMoveend) {\r\n\t\t\t\tclearTimeout(this._sizeTimer);\r\n\t\t\t\tthis._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);\r\n\t\t\t} else {\r\n\t\t\t\tthis.fire('moveend');\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// @section Map state change events\r\n\t\t// @event resize: ResizeEvent\r\n\t\t// Fired when the map is resized.\r\n\t\treturn this.fire('resize', {\r\n\t\t\toldSize: oldSize,\r\n\t\t\tnewSize: newSize\r\n\t\t});\r\n\t},\r\n\r\n\t// @section Methods for modifying map state\r\n\t// @method stop(): this\r\n\t// Stops the currently running `panTo` or `flyTo` animation, if any.\r\n\tstop: function () {\r\n\t\tthis.setZoom(this._limitZoom(this._zoom));\r\n\t\tif (!this.options.zoomSnap) {\r\n\t\t\tthis.fire('viewreset');\r\n\t\t}\r\n\t\treturn this._stop();\r\n\t},\r\n\r\n\t// @section Geolocation methods\r\n\t// @method locate(options?: Locate options): this\r\n\t// Tries to locate the user using the Geolocation API, firing a [`locationfound`](#map-locationfound)\r\n\t// event with location data on success or a [`locationerror`](#map-locationerror) event on failure,\r\n\t// and optionally sets the map view to the user's location with respect to\r\n\t// detection accuracy (or to the world view if geolocation failed).\r\n\t// Note that, if your page doesn't use HTTPS, this method will fail in\r\n\t// modern browsers ([Chrome 50 and newer](https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-powerful-features-on-insecure-origins))\r\n\t// See `Locate options` for more details.\r\n\tlocate: function (options) {\r\n\r\n\t\toptions = this._locateOptions = L.extend({\r\n\t\t\ttimeout: 10000,\r\n\t\t\twatch: false\r\n\t\t\t// setView: false\r\n\t\t\t// maxZoom: <Number>\r\n\t\t\t// maximumAge: 0\r\n\t\t\t// enableHighAccuracy: false\r\n\t\t}, options);\r\n\r\n\t\tif (!('geolocation' in navigator)) {\r\n\t\t\tthis._handleGeolocationError({\r\n\t\t\t\tcode: 0,\r\n\t\t\t\tmessage: 'Geolocation not supported.'\r\n\t\t\t});\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tvar onResponse = L.bind(this._handleGeolocationResponse, this),\r\n\t\t    onError = L.bind(this._handleGeolocationError, this);\r\n\r\n\t\tif (options.watch) {\r\n\t\t\tthis._locationWatchId =\r\n\t\t\t        navigator.geolocation.watchPosition(onResponse, onError, options);\r\n\t\t} else {\r\n\t\t\tnavigator.geolocation.getCurrentPosition(onResponse, onError, options);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method stopLocate(): this\r\n\t// Stops watching location previously initiated by `map.locate({watch: true})`\r\n\t// and aborts resetting the map view if map.locate was called with\r\n\t// `{setView: true}`.\r\n\tstopLocate: function () {\r\n\t\tif (navigator.geolocation && navigator.geolocation.clearWatch) {\r\n\t\t\tnavigator.geolocation.clearWatch(this._locationWatchId);\r\n\t\t}\r\n\t\tif (this._locateOptions) {\r\n\t\t\tthis._locateOptions.setView = false;\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_handleGeolocationError: function (error) {\r\n\t\tvar c = error.code,\r\n\t\t    message = error.message ||\r\n\t\t            (c === 1 ? 'permission denied' :\r\n\t\t            (c === 2 ? 'position unavailable' : 'timeout'));\r\n\r\n\t\tif (this._locateOptions.setView && !this._loaded) {\r\n\t\t\tthis.fitWorld();\r\n\t\t}\r\n\r\n\t\t// @section Location events\r\n\t\t// @event locationerror: ErrorEvent\r\n\t\t// Fired when geolocation (using the [`locate`](#map-locate) method) failed.\r\n\t\tthis.fire('locationerror', {\r\n\t\t\tcode: c,\r\n\t\t\tmessage: 'Geolocation error: ' + message + '.'\r\n\t\t});\r\n\t},\r\n\r\n\t_handleGeolocationResponse: function (pos) {\r\n\t\tvar lat = pos.coords.latitude,\r\n\t\t    lng = pos.coords.longitude,\r\n\t\t    latlng = new L.LatLng(lat, lng),\r\n\t\t    bounds = latlng.toBounds(pos.coords.accuracy),\r\n\t\t    options = this._locateOptions;\r\n\r\n\t\tif (options.setView) {\r\n\t\t\tvar zoom = this.getBoundsZoom(bounds);\r\n\t\t\tthis.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom);\r\n\t\t}\r\n\r\n\t\tvar data = {\r\n\t\t\tlatlng: latlng,\r\n\t\t\tbounds: bounds,\r\n\t\t\ttimestamp: pos.timestamp\r\n\t\t};\r\n\r\n\t\tfor (var i in pos.coords) {\r\n\t\t\tif (typeof pos.coords[i] === 'number') {\r\n\t\t\t\tdata[i] = pos.coords[i];\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// @event locationfound: LocationEvent\r\n\t\t// Fired when geolocation (using the [`locate`](#map-locate) method)\r\n\t\t// went successfully.\r\n\t\tthis.fire('locationfound', data);\r\n\t},\r\n\r\n\t// TODO handler.addTo\r\n\t// TODO Appropiate docs section?\r\n\t// @section Other Methods\r\n\t// @method addHandler(name: String, HandlerClass: Function): this\r\n\t// Adds a new `Handler` to the map, given its name and constructor function.\r\n\taddHandler: function (name, HandlerClass) {\r\n\t\tif (!HandlerClass) { return this; }\r\n\r\n\t\tvar handler = this[name] = new HandlerClass(this);\r\n\r\n\t\tthis._handlers.push(handler);\r\n\r\n\t\tif (this.options[name]) {\r\n\t\t\thandler.enable();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method remove(): this\r\n\t// Destroys the map and clears all related event listeners.\r\n\tremove: function () {\r\n\r\n\t\tthis._initEvents(true);\r\n\r\n\t\tif (this._containerId !== this._container._leaflet_id) {\r\n\t\t\tthrow new Error('Map container is being reused by another instance');\r\n\t\t}\r\n\r\n\t\ttry {\r\n\t\t\t// throws error in IE6-8\r\n\t\t\tdelete this._container._leaflet_id;\r\n\t\t\tdelete this._containerId;\r\n\t\t} catch (e) {\r\n\t\t\t/*eslint-disable */\r\n\t\t\tthis._container._leaflet_id = undefined;\r\n\t\t\t/*eslint-enable */\r\n\t\t\tthis._containerId = undefined;\r\n\t\t}\r\n\r\n\t\tL.DomUtil.remove(this._mapPane);\r\n\r\n\t\tif (this._clearControlPos) {\r\n\t\t\tthis._clearControlPos();\r\n\t\t}\r\n\r\n\t\tthis._clearHandlers();\r\n\r\n\t\tif (this._loaded) {\r\n\t\t\t// @section Map state change events\r\n\t\t\t// @event unload: Event\r\n\t\t\t// Fired when the map is destroyed with [remove](#map-remove) method.\r\n\t\t\tthis.fire('unload');\r\n\t\t}\r\n\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tthis._layers[i].remove();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @section Other Methods\r\n\t// @method createPane(name: String, container?: HTMLElement): HTMLElement\r\n\t// Creates a new [map pane](#map-pane) with the given name if it doesn't exist already,\r\n\t// then returns it. The pane is created as a children of `container`, or\r\n\t// as a children of the main map pane if not set.\r\n\tcreatePane: function (name, container) {\r\n\t\tvar className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''),\r\n\t\t    pane = L.DomUtil.create('div', className, container || this._mapPane);\r\n\r\n\t\tif (name) {\r\n\t\t\tthis._panes[name] = pane;\r\n\t\t}\r\n\t\treturn pane;\r\n\t},\r\n\r\n\t// @section Methods for Getting Map State\r\n\r\n\t// @method getCenter(): LatLng\r\n\t// Returns the geographical center of the map view\r\n\tgetCenter: function () {\r\n\t\tthis._checkIfLoaded();\r\n\r\n\t\tif (this._lastCenter && !this._moved()) {\r\n\t\t\treturn this._lastCenter;\r\n\t\t}\r\n\t\treturn this.layerPointToLatLng(this._getCenterLayerPoint());\r\n\t},\r\n\r\n\t// @method getZoom(): Number\r\n\t// Returns the current zoom level of the map view\r\n\tgetZoom: function () {\r\n\t\treturn this._zoom;\r\n\t},\r\n\r\n\t// @method getBounds(): LatLngBounds\r\n\t// Returns the geographical bounds visible in the current map view\r\n\tgetBounds: function () {\r\n\t\tvar bounds = this.getPixelBounds(),\r\n\t\t    sw = this.unproject(bounds.getBottomLeft()),\r\n\t\t    ne = this.unproject(bounds.getTopRight());\r\n\r\n\t\treturn new L.LatLngBounds(sw, ne);\r\n\t},\r\n\r\n\t// @method getMinZoom(): Number\r\n\t// Returns the minimum zoom level of the map (if set in the `minZoom` option of the map or of any layers), or `0` by default.\r\n\tgetMinZoom: function () {\r\n\t\treturn this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom;\r\n\t},\r\n\r\n\t// @method getMaxZoom(): Number\r\n\t// Returns the maximum zoom level of the map (if set in the `maxZoom` option of the map or of any layers).\r\n\tgetMaxZoom: function () {\r\n\t\treturn this.options.maxZoom === undefined ?\r\n\t\t\t(this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :\r\n\t\t\tthis.options.maxZoom;\r\n\t},\r\n\r\n\t// @method getBoundsZoom(bounds: LatLngBounds, inside?: Boolean): Number\r\n\t// Returns the maximum zoom level on which the given bounds fit to the map\r\n\t// view in its entirety. If `inside` (optional) is set to `true`, the method\r\n\t// instead returns the minimum zoom level on which the map view fits into\r\n\t// the given bounds in its entirety.\r\n\tgetBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number\r\n\t\tbounds = L.latLngBounds(bounds);\r\n\t\tpadding = L.point(padding || [0, 0]);\r\n\r\n\t\tvar zoom = this.getZoom() || 0,\r\n\t\t    min = this.getMinZoom(),\r\n\t\t    max = this.getMaxZoom(),\r\n\t\t    nw = bounds.getNorthWest(),\r\n\t\t    se = bounds.getSouthEast(),\r\n\t\t    size = this.getSize().subtract(padding),\r\n\t\t    boundsSize = this.project(se, zoom).subtract(this.project(nw, zoom)),\r\n\t\t    snap = L.Browser.any3d ? this.options.zoomSnap : 1;\r\n\r\n\t\tvar scale = Math.min(size.x / boundsSize.x, size.y / boundsSize.y);\r\n\t\tzoom = this.getScaleZoom(scale, zoom);\r\n\r\n\t\tif (snap) {\r\n\t\t\tzoom = Math.round(zoom / (snap / 100)) * (snap / 100); // don't jump if within 1% of a snap level\r\n\t\t\tzoom = inside ? Math.ceil(zoom / snap) * snap : Math.floor(zoom / snap) * snap;\r\n\t\t}\r\n\r\n\t\treturn Math.max(min, Math.min(max, zoom));\r\n\t},\r\n\r\n\t// @method getSize(): Point\r\n\t// Returns the current size of the map container (in pixels).\r\n\tgetSize: function () {\r\n\t\tif (!this._size || this._sizeChanged) {\r\n\t\t\tthis._size = new L.Point(\r\n\t\t\t\tthis._container.clientWidth,\r\n\t\t\t\tthis._container.clientHeight);\r\n\r\n\t\t\tthis._sizeChanged = false;\r\n\t\t}\r\n\t\treturn this._size.clone();\r\n\t},\r\n\r\n\t// @method getPixelBounds(): Bounds\r\n\t// Returns the bounds of the current map view in projected pixel\r\n\t// coordinates (sometimes useful in layer and overlay implementations).\r\n\tgetPixelBounds: function (center, zoom) {\r\n\t\tvar topLeftPoint = this._getTopLeftPoint(center, zoom);\r\n\t\treturn new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));\r\n\t},\r\n\r\n\t// TODO: Check semantics - isn't the pixel origin the 0,0 coord relative to\r\n\t// the map pane? \"left point of the map layer\" can be confusing, specially\r\n\t// since there can be negative offsets.\r\n\t// @method getPixelOrigin(): Point\r\n\t// Returns the projected pixel coordinates of the top left point of\r\n\t// the map layer (useful in custom layer and overlay implementations).\r\n\tgetPixelOrigin: function () {\r\n\t\tthis._checkIfLoaded();\r\n\t\treturn this._pixelOrigin;\r\n\t},\r\n\r\n\t// @method getPixelWorldBounds(zoom?: Number): Bounds\r\n\t// Returns the world's bounds in pixel coordinates for zoom level `zoom`.\r\n\t// If `zoom` is omitted, the map's current zoom level is used.\r\n\tgetPixelWorldBounds: function (zoom) {\r\n\t\treturn this.options.crs.getProjectedBounds(zoom === undefined ? this.getZoom() : zoom);\r\n\t},\r\n\r\n\t// @section Other Methods\r\n\r\n\t// @method getPane(pane: String|HTMLElement): HTMLElement\r\n\t// Returns a [map pane](#map-pane), given its name or its HTML element (its identity).\r\n\tgetPane: function (pane) {\r\n\t\treturn typeof pane === 'string' ? this._panes[pane] : pane;\r\n\t},\r\n\r\n\t// @method getPanes(): Object\r\n\t// Returns a plain object containing the names of all [panes](#map-pane) as keys and\r\n\t// the panes as values.\r\n\tgetPanes: function () {\r\n\t\treturn this._panes;\r\n\t},\r\n\r\n\t// @method getContainer: HTMLElement\r\n\t// Returns the HTML element that contains the map.\r\n\tgetContainer: function () {\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\r\n\t// @section Conversion Methods\r\n\r\n\t// @method getZoomScale(toZoom: Number, fromZoom: Number): Number\r\n\t// Returns the scale factor to be applied to a map transition from zoom level\r\n\t// `fromZoom` to `toZoom`. Used internally to help with zoom animations.\r\n\tgetZoomScale: function (toZoom, fromZoom) {\r\n\t\t// TODO replace with universal implementation after refactoring projections\r\n\t\tvar crs = this.options.crs;\r\n\t\tfromZoom = fromZoom === undefined ? this._zoom : fromZoom;\r\n\t\treturn crs.scale(toZoom) / crs.scale(fromZoom);\r\n\t},\r\n\r\n\t// @method getScaleZoom(scale: Number, fromZoom: Number): Number\r\n\t// Returns the zoom level that the map would end up at, if it is at `fromZoom`\r\n\t// level and everything is scaled by a factor of `scale`. Inverse of\r\n\t// [`getZoomScale`](#map-getZoomScale).\r\n\tgetScaleZoom: function (scale, fromZoom) {\r\n\t\tvar crs = this.options.crs;\r\n\t\tfromZoom = fromZoom === undefined ? this._zoom : fromZoom;\r\n\t\tvar zoom = crs.zoom(scale * crs.scale(fromZoom));\r\n\t\treturn isNaN(zoom) ? Infinity : zoom;\r\n\t},\r\n\r\n\t// @method project(latlng: LatLng, zoom: Number): Point\r\n\t// Projects a geographical coordinate `LatLng` according to the projection\r\n\t// of the map's CRS, then scales it according to `zoom` and the CRS's\r\n\t// `Transformation`. The result is pixel coordinate relative to\r\n\t// the CRS origin.\r\n\tproject: function (latlng, zoom) {\r\n\t\tzoom = zoom === undefined ? this._zoom : zoom;\r\n\t\treturn this.options.crs.latLngToPoint(L.latLng(latlng), zoom);\r\n\t},\r\n\r\n\t// @method unproject(point: Point, zoom: Number): LatLng\r\n\t// Inverse of [`project`](#map-project).\r\n\tunproject: function (point, zoom) {\r\n\t\tzoom = zoom === undefined ? this._zoom : zoom;\r\n\t\treturn this.options.crs.pointToLatLng(L.point(point), zoom);\r\n\t},\r\n\r\n\t// @method layerPointToLatLng(point: Point): LatLng\r\n\t// Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),\r\n\t// returns the corresponding geographical coordinate (for the current zoom level).\r\n\tlayerPointToLatLng: function (point) {\r\n\t\tvar projectedPoint = L.point(point).add(this.getPixelOrigin());\r\n\t\treturn this.unproject(projectedPoint);\r\n\t},\r\n\r\n\t// @method latLngToLayerPoint(latlng: LatLng): Point\r\n\t// Given a geographical coordinate, returns the corresponding pixel coordinate\r\n\t// relative to the [origin pixel](#map-getpixelorigin).\r\n\tlatLngToLayerPoint: function (latlng) {\r\n\t\tvar projectedPoint = this.project(L.latLng(latlng))._round();\r\n\t\treturn projectedPoint._subtract(this.getPixelOrigin());\r\n\t},\r\n\r\n\t// @method wrapLatLng(latlng: LatLng): LatLng\r\n\t// Returns a `LatLng` where `lat` and `lng` has been wrapped according to the\r\n\t// map's CRS's `wrapLat` and `wrapLng` properties, if they are outside the\r\n\t// CRS's bounds.\r\n\t// By default this means longitude is wrapped around the dateline so its\r\n\t// value is between -180 and +180 degrees.\r\n\twrapLatLng: function (latlng) {\r\n\t\treturn this.options.crs.wrapLatLng(L.latLng(latlng));\r\n\t},\r\n\r\n\t// @method distance(latlng1: LatLng, latlng2: LatLng): Number\r\n\t// Returns the distance between two geographical coordinates according to\r\n\t// the map's CRS. By default this measures distance in meters.\r\n\tdistance: function (latlng1, latlng2) {\r\n\t\treturn this.options.crs.distance(L.latLng(latlng1), L.latLng(latlng2));\r\n\t},\r\n\r\n\t// @method containerPointToLayerPoint(point: Point): Point\r\n\t// Given a pixel coordinate relative to the map container, returns the corresponding\r\n\t// pixel coordinate relative to the [origin pixel](#map-getpixelorigin).\r\n\tcontainerPointToLayerPoint: function (point) { // (Point)\r\n\t\treturn L.point(point).subtract(this._getMapPanePos());\r\n\t},\r\n\r\n\t// @method layerPointToContainerPoint(point: Point): Point\r\n\t// Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),\r\n\t// returns the corresponding pixel coordinate relative to the map container.\r\n\tlayerPointToContainerPoint: function (point) { // (Point)\r\n\t\treturn L.point(point).add(this._getMapPanePos());\r\n\t},\r\n\r\n\t// @method containerPointToLatLng(point: Point): Point\r\n\t// Given a pixel coordinate relative to the map container, returns\r\n\t// the corresponding geographical coordinate (for the current zoom level).\r\n\tcontainerPointToLatLng: function (point) {\r\n\t\tvar layerPoint = this.containerPointToLayerPoint(L.point(point));\r\n\t\treturn this.layerPointToLatLng(layerPoint);\r\n\t},\r\n\r\n\t// @method latLngToContainerPoint(latlng: LatLng): Point\r\n\t// Given a geographical coordinate, returns the corresponding pixel coordinate\r\n\t// relative to the map container.\r\n\tlatLngToContainerPoint: function (latlng) {\r\n\t\treturn this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));\r\n\t},\r\n\r\n\t// @method mouseEventToContainerPoint(ev: MouseEvent): Point\r\n\t// Given a MouseEvent object, returns the pixel coordinate relative to the\r\n\t// map container where the event took place.\r\n\tmouseEventToContainerPoint: function (e) {\r\n\t\treturn L.DomEvent.getMousePosition(e, this._container);\r\n\t},\r\n\r\n\t// @method mouseEventToLayerPoint(ev: MouseEvent): Point\r\n\t// Given a MouseEvent object, returns the pixel coordinate relative to\r\n\t// the [origin pixel](#map-getpixelorigin) where the event took place.\r\n\tmouseEventToLayerPoint: function (e) {\r\n\t\treturn this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));\r\n\t},\r\n\r\n\t// @method mouseEventToLatLng(ev: MouseEvent): LatLng\r\n\t// Given a MouseEvent object, returns geographical coordinate where the\r\n\t// event took place.\r\n\tmouseEventToLatLng: function (e) { // (MouseEvent)\r\n\t\treturn this.layerPointToLatLng(this.mouseEventToLayerPoint(e));\r\n\t},\r\n\r\n\r\n\t// map initialization methods\r\n\r\n\t_initContainer: function (id) {\r\n\t\tvar container = this._container = L.DomUtil.get(id);\r\n\r\n\t\tif (!container) {\r\n\t\t\tthrow new Error('Map container not found.');\r\n\t\t} else if (container._leaflet_id) {\r\n\t\t\tthrow new Error('Map container is already initialized.');\r\n\t\t}\r\n\r\n\t\tL.DomEvent.addListener(container, 'scroll', this._onScroll, this);\r\n\t\tthis._containerId = L.Util.stamp(container);\r\n\t},\r\n\r\n\t_initLayout: function () {\r\n\t\tvar container = this._container;\r\n\r\n\t\tthis._fadeAnimated = this.options.fadeAnimation && L.Browser.any3d;\r\n\r\n\t\tL.DomUtil.addClass(container, 'leaflet-container' +\r\n\t\t\t(L.Browser.touch ? ' leaflet-touch' : '') +\r\n\t\t\t(L.Browser.retina ? ' leaflet-retina' : '') +\r\n\t\t\t(L.Browser.ielt9 ? ' leaflet-oldie' : '') +\r\n\t\t\t(L.Browser.safari ? ' leaflet-safari' : '') +\r\n\t\t\t(this._fadeAnimated ? ' leaflet-fade-anim' : ''));\r\n\r\n\t\tvar position = L.DomUtil.getStyle(container, 'position');\r\n\r\n\t\tif (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {\r\n\t\t\tcontainer.style.position = 'relative';\r\n\t\t}\r\n\r\n\t\tthis._initPanes();\r\n\r\n\t\tif (this._initControlPos) {\r\n\t\t\tthis._initControlPos();\r\n\t\t}\r\n\t},\r\n\r\n\t_initPanes: function () {\r\n\t\tvar panes = this._panes = {};\r\n\t\tthis._paneRenderers = {};\r\n\r\n\t\t// @section\r\n\t\t//\r\n\t\t// Panes are DOM elements used to control the ordering of layers on the map. You\r\n\t\t// can access panes with [`map.getPane`](#map-getpane) or\r\n\t\t// [`map.getPanes`](#map-getpanes) methods. New panes can be created with the\r\n\t\t// [`map.createPane`](#map-createpane) method.\r\n\t\t//\r\n\t\t// Every map has the following default panes that differ only in zIndex.\r\n\t\t//\r\n\t\t// @pane mapPane: HTMLElement = 'auto'\r\n\t\t// Pane that contains all other map panes\r\n\r\n\t\tthis._mapPane = this.createPane('mapPane', this._container);\r\n\t\tL.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));\r\n\r\n\t\t// @pane tilePane: HTMLElement = 200\r\n\t\t// Pane for `GridLayer`s and `TileLayer`s\r\n\t\tthis.createPane('tilePane');\r\n\t\t// @pane overlayPane: HTMLElement = 400\r\n\t\t// Pane for vector overlays (`Path`s), like `Polyline`s and `Polygon`s\r\n\t\tthis.createPane('shadowPane');\r\n\t\t// @pane shadowPane: HTMLElement = 500\r\n\t\t// Pane for overlay shadows (e.g. `Marker` shadows)\r\n\t\tthis.createPane('overlayPane');\r\n\t\t// @pane markerPane: HTMLElement = 600\r\n\t\t// Pane for `Icon`s of `Marker`s\r\n\t\tthis.createPane('markerPane');\r\n\t\t// @pane tooltipPane: HTMLElement = 650\r\n\t\t// Pane for tooltip.\r\n\t\tthis.createPane('tooltipPane');\r\n\t\t// @pane popupPane: HTMLElement = 700\r\n\t\t// Pane for `Popup`s.\r\n\t\tthis.createPane('popupPane');\r\n\r\n\t\tif (!this.options.markerZoomAnimation) {\r\n\t\t\tL.DomUtil.addClass(panes.markerPane, 'leaflet-zoom-hide');\r\n\t\t\tL.DomUtil.addClass(panes.shadowPane, 'leaflet-zoom-hide');\r\n\t\t}\r\n\t},\r\n\r\n\r\n\t// private methods that modify map state\r\n\r\n\t// @section Map state change events\r\n\t_resetView: function (center, zoom) {\r\n\t\tL.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));\r\n\r\n\t\tvar loading = !this._loaded;\r\n\t\tthis._loaded = true;\r\n\t\tzoom = this._limitZoom(zoom);\r\n\r\n\t\tthis.fire('viewprereset');\r\n\r\n\t\tvar zoomChanged = this._zoom !== zoom;\r\n\t\tthis\r\n\t\t\t._moveStart(zoomChanged)\r\n\t\t\t._move(center, zoom)\r\n\t\t\t._moveEnd(zoomChanged);\r\n\r\n\t\t// @event viewreset: Event\r\n\t\t// Fired when the map needs to redraw its content (this usually happens\r\n\t\t// on map zoom or load). Very useful for creating custom overlays.\r\n\t\tthis.fire('viewreset');\r\n\r\n\t\t// @event load: Event\r\n\t\t// Fired when the map is initialized (when its center and zoom are set\r\n\t\t// for the first time).\r\n\t\tif (loading) {\r\n\t\t\tthis.fire('load');\r\n\t\t}\r\n\t},\r\n\r\n\t_moveStart: function (zoomChanged) {\r\n\t\t// @event zoomstart: Event\r\n\t\t// Fired when the map zoom is about to change (e.g. before zoom animation).\r\n\t\t// @event movestart: Event\r\n\t\t// Fired when the view of the map starts changing (e.g. user starts dragging the map).\r\n\t\tif (zoomChanged) {\r\n\t\t\tthis.fire('zoomstart');\r\n\t\t}\r\n\t\treturn this.fire('movestart');\r\n\t},\r\n\r\n\t_move: function (center, zoom, data) {\r\n\t\tif (zoom === undefined) {\r\n\t\t\tzoom = this._zoom;\r\n\t\t}\r\n\t\tvar zoomChanged = this._zoom !== zoom;\r\n\r\n\t\tthis._zoom = zoom;\r\n\t\tthis._lastCenter = center;\r\n\t\tthis._pixelOrigin = this._getNewPixelOrigin(center);\r\n\r\n\t\t// @event zoom: Event\r\n\t\t// Fired repeatedly during any change in zoom level, including zoom\r\n\t\t// and fly animations.\r\n\t\tif (zoomChanged || (data && data.pinch)) {\t// Always fire 'zoom' if pinching because #3530\r\n\t\t\tthis.fire('zoom', data);\r\n\t\t}\r\n\r\n\t\t// @event move: Event\r\n\t\t// Fired repeatedly during any movement of the map, including pan and\r\n\t\t// fly animations.\r\n\t\treturn this.fire('move', data);\r\n\t},\r\n\r\n\t_moveEnd: function (zoomChanged) {\r\n\t\t// @event zoomend: Event\r\n\t\t// Fired when the map has changed, after any animations.\r\n\t\tif (zoomChanged) {\r\n\t\t\tthis.fire('zoomend');\r\n\t\t}\r\n\r\n\t\t// @event moveend: Event\r\n\t\t// Fired when the center of the map stops changing (e.g. user stopped\r\n\t\t// dragging the map).\r\n\t\treturn this.fire('moveend');\r\n\t},\r\n\r\n\t_stop: function () {\r\n\t\tL.Util.cancelAnimFrame(this._flyToFrame);\r\n\t\tif (this._panAnim) {\r\n\t\t\tthis._panAnim.stop();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_rawPanBy: function (offset) {\r\n\t\tL.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));\r\n\t},\r\n\r\n\t_getZoomSpan: function () {\r\n\t\treturn this.getMaxZoom() - this.getMinZoom();\r\n\t},\r\n\r\n\t_panInsideMaxBounds: function () {\r\n\t\tif (!this._enforcingBounds) {\r\n\t\t\tthis.panInsideBounds(this.options.maxBounds);\r\n\t\t}\r\n\t},\r\n\r\n\t_checkIfLoaded: function () {\r\n\t\tif (!this._loaded) {\r\n\t\t\tthrow new Error('Set map center and zoom first.');\r\n\t\t}\r\n\t},\r\n\r\n\t// DOM event handling\r\n\r\n\t// @section Interaction events\r\n\t_initEvents: function (remove) {\r\n\t\tif (!L.DomEvent) { return; }\r\n\r\n\t\tthis._targets = {};\r\n\t\tthis._targets[L.stamp(this._container)] = this;\r\n\r\n\t\tvar onOff = remove ? 'off' : 'on';\r\n\r\n\t\t// @event click: MouseEvent\r\n\t\t// Fired when the user clicks (or taps) the map.\r\n\t\t// @event dblclick: MouseEvent\r\n\t\t// Fired when the user double-clicks (or double-taps) the map.\r\n\t\t// @event mousedown: MouseEvent\r\n\t\t// Fired when the user pushes the mouse button on the map.\r\n\t\t// @event mouseup: MouseEvent\r\n\t\t// Fired when the user releases the mouse button on the map.\r\n\t\t// @event mouseover: MouseEvent\r\n\t\t// Fired when the mouse enters the map.\r\n\t\t// @event mouseout: MouseEvent\r\n\t\t// Fired when the mouse leaves the map.\r\n\t\t// @event mousemove: MouseEvent\r\n\t\t// Fired while the mouse moves over the map.\r\n\t\t// @event contextmenu: MouseEvent\r\n\t\t// Fired when the user pushes the right mouse button on the map, prevents\r\n\t\t// default browser context menu from showing if there are listeners on\r\n\t\t// this event. Also fired on mobile when the user holds a single touch\r\n\t\t// for a second (also called long press).\r\n\t\t// @event keypress: KeyboardEvent\r\n\t\t// Fired when the user presses a key from the keyboard while the map is focused.\r\n\t\tL.DomEvent[onOff](this._container, 'click dblclick mousedown mouseup ' +\r\n\t\t\t'mouseover mouseout mousemove contextmenu keypress', this._handleDOMEvent, this);\r\n\r\n\t\tif (this.options.trackResize) {\r\n\t\t\tL.DomEvent[onOff](window, 'resize', this._onResize, this);\r\n\t\t}\r\n\r\n\t\tif (L.Browser.any3d && this.options.transform3DLimit) {\r\n\t\t\tthis[onOff]('moveend', this._onMoveEnd);\r\n\t\t}\r\n\t},\r\n\r\n\t_onResize: function () {\r\n\t\tL.Util.cancelAnimFrame(this._resizeRequest);\r\n\t\tthis._resizeRequest = L.Util.requestAnimFrame(\r\n\t\t        function () { this.invalidateSize({debounceMoveend: true}); }, this);\r\n\t},\r\n\r\n\t_onScroll: function () {\r\n\t\tthis._container.scrollTop  = 0;\r\n\t\tthis._container.scrollLeft = 0;\r\n\t},\r\n\r\n\t_onMoveEnd: function () {\r\n\t\tvar pos = this._getMapPanePos();\r\n\t\tif (Math.max(Math.abs(pos.x), Math.abs(pos.y)) >= this.options.transform3DLimit) {\r\n\t\t\t// https://bugzilla.mozilla.org/show_bug.cgi?id=1203873 but Webkit also have\r\n\t\t\t// a pixel offset on very high values, see: http://jsfiddle.net/dg6r5hhb/\r\n\t\t\tthis._resetView(this.getCenter(), this.getZoom());\r\n\t\t}\r\n\t},\r\n\r\n\t_findEventTargets: function (e, type) {\r\n\t\tvar targets = [],\r\n\t\t    target,\r\n\t\t    isHover = type === 'mouseout' || type === 'mouseover',\r\n\t\t    src = e.target || e.srcElement,\r\n\t\t    dragging = false;\r\n\r\n\t\twhile (src) {\r\n\t\t\ttarget = this._targets[L.stamp(src)];\r\n\t\t\tif (target && (type === 'click' || type === 'preclick') && !e._simulated && this._draggableMoved(target)) {\r\n\t\t\t\t// Prevent firing click after you just dragged an object.\r\n\t\t\t\tdragging = true;\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t\tif (target && target.listens(type, true)) {\r\n\t\t\t\tif (isHover && !L.DomEvent._isExternalTarget(src, e)) { break; }\r\n\t\t\t\ttargets.push(target);\r\n\t\t\t\tif (isHover) { break; }\r\n\t\t\t}\r\n\t\t\tif (src === this._container) { break; }\r\n\t\t\tsrc = src.parentNode;\r\n\t\t}\r\n\t\tif (!targets.length && !dragging && !isHover && L.DomEvent._isExternalTarget(src, e)) {\r\n\t\t\ttargets = [this];\r\n\t\t}\r\n\t\treturn targets;\r\n\t},\r\n\r\n\t_handleDOMEvent: function (e) {\r\n\t\tif (!this._loaded || L.DomEvent._skipped(e)) { return; }\r\n\r\n\t\tvar type = e.type === 'keypress' && e.keyCode === 13 ? 'click' : e.type;\r\n\r\n\t\tif (type === 'mousedown') {\r\n\t\t\t// prevents outline when clicking on keyboard-focusable element\r\n\t\t\tL.DomUtil.preventOutline(e.target || e.srcElement);\r\n\t\t}\r\n\r\n\t\tthis._fireDOMEvent(e, type);\r\n\t},\r\n\r\n\t_fireDOMEvent: function (e, type, targets) {\r\n\r\n\t\tif (e.type === 'click') {\r\n\t\t\t// Fire a synthetic 'preclick' event which propagates up (mainly for closing popups).\r\n\t\t\t// @event preclick: MouseEvent\r\n\t\t\t// Fired before mouse click on the map (sometimes useful when you\r\n\t\t\t// want something to happen on click before any existing click\r\n\t\t\t// handlers start running).\r\n\t\t\tvar synth = L.Util.extend({}, e);\r\n\t\t\tsynth.type = 'preclick';\r\n\t\t\tthis._fireDOMEvent(synth, synth.type, targets);\r\n\t\t}\r\n\r\n\t\tif (e._stopped) { return; }\r\n\r\n\t\t// Find the layer the event is propagating from and its parents.\r\n\t\ttargets = (targets || []).concat(this._findEventTargets(e, type));\r\n\r\n\t\tif (!targets.length) { return; }\r\n\r\n\t\tvar target = targets[0];\r\n\t\tif (type === 'contextmenu' && target.listens(type, true)) {\r\n\t\t\tL.DomEvent.preventDefault(e);\r\n\t\t}\r\n\r\n\t\tvar data = {\r\n\t\t\toriginalEvent: e\r\n\t\t};\r\n\r\n\t\tif (e.type !== 'keypress') {\r\n\t\t\tvar isMarker = target instanceof L.Marker;\r\n\t\t\tdata.containerPoint = isMarker ?\r\n\t\t\t\t\tthis.latLngToContainerPoint(target.getLatLng()) : this.mouseEventToContainerPoint(e);\r\n\t\t\tdata.layerPoint = this.containerPointToLayerPoint(data.containerPoint);\r\n\t\t\tdata.latlng = isMarker ? target.getLatLng() : this.layerPointToLatLng(data.layerPoint);\r\n\t\t}\r\n\r\n\t\tfor (var i = 0; i < targets.length; i++) {\r\n\t\t\ttargets[i].fire(type, data, true);\r\n\t\t\tif (data.originalEvent._stopped ||\r\n\t\t\t\t(targets[i].options.nonBubblingEvents && L.Util.indexOf(targets[i].options.nonBubblingEvents, type) !== -1)) { return; }\r\n\t\t}\r\n\t},\r\n\r\n\t_draggableMoved: function (obj) {\r\n\t\tobj = obj.dragging && obj.dragging.enabled() ? obj : this;\r\n\t\treturn (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved());\r\n\t},\r\n\r\n\t_clearHandlers: function () {\r\n\t\tfor (var i = 0, len = this._handlers.length; i < len; i++) {\r\n\t\t\tthis._handlers[i].disable();\r\n\t\t}\r\n\t},\r\n\r\n\t// @section Other Methods\r\n\r\n\t// @method whenReady(fn: Function, context?: Object): this\r\n\t// Runs the given function `fn` when the map gets initialized with\r\n\t// a view (center and zoom) and at least one layer, or immediately\r\n\t// if it's already initialized, optionally passing a function context.\r\n\twhenReady: function (callback, context) {\r\n\t\tif (this._loaded) {\r\n\t\t\tcallback.call(context || this, {target: this});\r\n\t\t} else {\r\n\t\t\tthis.on('load', callback, context);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\r\n\t// private methods for getting map state\r\n\r\n\t_getMapPanePos: function () {\r\n\t\treturn L.DomUtil.getPosition(this._mapPane) || new L.Point(0, 0);\r\n\t},\r\n\r\n\t_moved: function () {\r\n\t\tvar pos = this._getMapPanePos();\r\n\t\treturn pos && !pos.equals([0, 0]);\r\n\t},\r\n\r\n\t_getTopLeftPoint: function (center, zoom) {\r\n\t\tvar pixelOrigin = center && zoom !== undefined ?\r\n\t\t\tthis._getNewPixelOrigin(center, zoom) :\r\n\t\t\tthis.getPixelOrigin();\r\n\t\treturn pixelOrigin.subtract(this._getMapPanePos());\r\n\t},\r\n\r\n\t_getNewPixelOrigin: function (center, zoom) {\r\n\t\tvar viewHalf = this.getSize()._divideBy(2);\r\n\t\treturn this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round();\r\n\t},\r\n\r\n\t_latLngToNewLayerPoint: function (latlng, zoom, center) {\r\n\t\tvar topLeft = this._getNewPixelOrigin(center, zoom);\r\n\t\treturn this.project(latlng, zoom)._subtract(topLeft);\r\n\t},\r\n\r\n\t_latLngBoundsToNewLayerBounds: function (latLngBounds, zoom, center) {\r\n\t\tvar topLeft = this._getNewPixelOrigin(center, zoom);\r\n\t\treturn L.bounds([\r\n\t\t\tthis.project(latLngBounds.getSouthWest(), zoom)._subtract(topLeft),\r\n\t\t\tthis.project(latLngBounds.getNorthWest(), zoom)._subtract(topLeft),\r\n\t\t\tthis.project(latLngBounds.getSouthEast(), zoom)._subtract(topLeft),\r\n\t\t\tthis.project(latLngBounds.getNorthEast(), zoom)._subtract(topLeft)\r\n\t\t]);\r\n\t},\r\n\r\n\t// layer point of the current center\r\n\t_getCenterLayerPoint: function () {\r\n\t\treturn this.containerPointToLayerPoint(this.getSize()._divideBy(2));\r\n\t},\r\n\r\n\t// offset of the specified place to the current center in pixels\r\n\t_getCenterOffset: function (latlng) {\r\n\t\treturn this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());\r\n\t},\r\n\r\n\t// adjust center for view to get inside bounds\r\n\t_limitCenter: function (center, zoom, bounds) {\r\n\r\n\t\tif (!bounds) { return center; }\r\n\r\n\t\tvar centerPoint = this.project(center, zoom),\r\n\t\t    viewHalf = this.getSize().divideBy(2),\r\n\t\t    viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),\r\n\t\t    offset = this._getBoundsOffset(viewBounds, bounds, zoom);\r\n\r\n\t\t// If offset is less than a pixel, ignore.\r\n\t\t// This prevents unstable projections from getting into\r\n\t\t// an infinite loop of tiny offsets.\r\n\t\tif (offset.round().equals([0, 0])) {\r\n\t\t\treturn center;\r\n\t\t}\r\n\r\n\t\treturn this.unproject(centerPoint.add(offset), zoom);\r\n\t},\r\n\r\n\t// adjust offset for view to get inside bounds\r\n\t_limitOffset: function (offset, bounds) {\r\n\t\tif (!bounds) { return offset; }\r\n\r\n\t\tvar viewBounds = this.getPixelBounds(),\r\n\t\t    newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));\r\n\r\n\t\treturn offset.add(this._getBoundsOffset(newBounds, bounds));\r\n\t},\r\n\r\n\t// returns offset needed for pxBounds to get inside maxBounds at a specified zoom\r\n\t_getBoundsOffset: function (pxBounds, maxBounds, zoom) {\r\n\t\tvar projectedMaxBounds = L.bounds(\r\n\t\t        this.project(maxBounds.getNorthEast(), zoom),\r\n\t\t        this.project(maxBounds.getSouthWest(), zoom)\r\n\t\t    ),\r\n\t\t    minOffset = projectedMaxBounds.min.subtract(pxBounds.min),\r\n\t\t    maxOffset = projectedMaxBounds.max.subtract(pxBounds.max),\r\n\r\n\t\t    dx = this._rebound(minOffset.x, -maxOffset.x),\r\n\t\t    dy = this._rebound(minOffset.y, -maxOffset.y);\r\n\r\n\t\treturn new L.Point(dx, dy);\r\n\t},\r\n\r\n\t_rebound: function (left, right) {\r\n\t\treturn left + right > 0 ?\r\n\t\t\tMath.round(left - right) / 2 :\r\n\t\t\tMath.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));\r\n\t},\r\n\r\n\t_limitZoom: function (zoom) {\r\n\t\tvar min = this.getMinZoom(),\r\n\t\t    max = this.getMaxZoom(),\r\n\t\t    snap = L.Browser.any3d ? this.options.zoomSnap : 1;\r\n\t\tif (snap) {\r\n\t\t\tzoom = Math.round(zoom / snap) * snap;\r\n\t\t}\r\n\t\treturn Math.max(min, Math.min(max, zoom));\r\n\t},\r\n\r\n\t_onPanTransitionStep: function () {\r\n\t\tthis.fire('move');\r\n\t},\r\n\r\n\t_onPanTransitionEnd: function () {\r\n\t\tL.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');\r\n\t\tthis.fire('moveend');\r\n\t},\r\n\r\n\t_tryAnimatedPan: function (center, options) {\r\n\t\t// difference between the new and current centers in pixels\r\n\t\tvar offset = this._getCenterOffset(center)._floor();\r\n\r\n\t\t// don't animate too far unless animate: true specified in options\r\n\t\tif ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }\r\n\r\n\t\tthis.panBy(offset, options);\r\n\r\n\t\treturn true;\r\n\t},\r\n\r\n\t_createAnimProxy: function () {\r\n\r\n\t\tvar proxy = this._proxy = L.DomUtil.create('div', 'leaflet-proxy leaflet-zoom-animated');\r\n\t\tthis._panes.mapPane.appendChild(proxy);\r\n\r\n\t\tthis.on('zoomanim', function (e) {\r\n\t\t\tvar prop = L.DomUtil.TRANSFORM,\r\n\t\t\t    transform = proxy.style[prop];\r\n\r\n\t\t\tL.DomUtil.setTransform(proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1));\r\n\r\n\t\t\t// workaround for case when transform is the same and so transitionend event is not fired\r\n\t\t\tif (transform === proxy.style[prop] && this._animatingZoom) {\r\n\t\t\t\tthis._onZoomTransitionEnd();\r\n\t\t\t}\r\n\t\t}, this);\r\n\r\n\t\tthis.on('load moveend', function () {\r\n\t\t\tvar c = this.getCenter(),\r\n\t\t\t    z = this.getZoom();\r\n\t\t\tL.DomUtil.setTransform(proxy, this.project(c, z), this.getZoomScale(z, 1));\r\n\t\t}, this);\r\n\t},\r\n\r\n\t_catchTransitionEnd: function (e) {\r\n\t\tif (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {\r\n\t\t\tthis._onZoomTransitionEnd();\r\n\t\t}\r\n\t},\r\n\r\n\t_nothingToAnimate: function () {\r\n\t\treturn !this._container.getElementsByClassName('leaflet-zoom-animated').length;\r\n\t},\r\n\r\n\t_tryAnimatedZoom: function (center, zoom, options) {\r\n\r\n\t\tif (this._animatingZoom) { return true; }\r\n\r\n\t\toptions = options || {};\r\n\r\n\t\t// don't animate if disabled, not supported or zoom difference is too large\r\n\t\tif (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() ||\r\n\t\t        Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; }\r\n\r\n\t\t// offset is the pixel coords of the zoom origin relative to the current center\r\n\t\tvar scale = this.getZoomScale(zoom),\r\n\t\t    offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale);\r\n\r\n\t\t// don't animate if the zoom origin isn't within one screen from the current center, unless forced\r\n\t\tif (options.animate !== true && !this.getSize().contains(offset)) { return false; }\r\n\r\n\t\tL.Util.requestAnimFrame(function () {\r\n\t\t\tthis\r\n\t\t\t    ._moveStart(true)\r\n\t\t\t    ._animateZoom(center, zoom, true);\r\n\t\t}, this);\r\n\r\n\t\treturn true;\r\n\t},\r\n\r\n\t_animateZoom: function (center, zoom, startAnim, noUpdate) {\r\n\t\tif (startAnim) {\r\n\t\t\tthis._animatingZoom = true;\r\n\r\n\t\t\t// remember what center/zoom to set after animation\r\n\t\t\tthis._animateToCenter = center;\r\n\t\t\tthis._animateToZoom = zoom;\r\n\r\n\t\t\tL.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');\r\n\t\t}\r\n\r\n\t\t// @event zoomanim: ZoomAnimEvent\r\n\t\t// Fired on every frame of a zoom animation\r\n\t\tthis.fire('zoomanim', {\r\n\t\t\tcenter: center,\r\n\t\t\tzoom: zoom,\r\n\t\t\tnoUpdate: noUpdate\r\n\t\t});\r\n\r\n\t\t// Work around webkit not firing 'transitionend', see https://github.com/Leaflet/Leaflet/issues/3689, 2693\r\n\t\tsetTimeout(L.bind(this._onZoomTransitionEnd, this), 250);\r\n\t},\r\n\r\n\t_onZoomTransitionEnd: function () {\r\n\t\tif (!this._animatingZoom) { return; }\r\n\r\n\t\tL.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');\r\n\r\n\t\tthis._animatingZoom = false;\r\n\r\n\t\tthis._move(this._animateToCenter, this._animateToZoom);\r\n\r\n\t\t// This anim frame should prevent an obscure iOS webkit tile loading race condition.\r\n\t\tL.Util.requestAnimFrame(function () {\r\n\t\t\tthis._moveEnd(true);\r\n\t\t}, this);\r\n\t}\r\n});\r\n\r\n// @section\r\n\r\n// @factory L.map(id: String, options?: Map options)\r\n// Instantiates a map object given the DOM ID of a `<div>` element\r\n// and optionally an object literal with `Map options`.\r\n//\r\n// @alternative\r\n// @factory L.map(el: HTMLElement, options?: Map options)\r\n// Instantiates a map object given an instance of a `<div>` HTML element\r\n// and optionally an object literal with `Map options`.\r\nL.map = function (id, options) {\r\n\treturn new L.Map(id, options);\r\n};\r\n\n\n\n\n/*\n * @class Layer\n * @inherits Evented\n * @aka L.Layer\n * @aka ILayer\n *\n * A set of methods from the Layer base class that all Leaflet layers use.\n * Inherits all methods, options and events from `L.Evented`.\n *\n * @example\n *\n * ```js\n * var layer = L.Marker(latlng).addTo(map);\n * layer.addTo(map);\n * layer.remove();\n * ```\n *\n * @event add: Event\n * Fired after the layer is added to a map\n *\n * @event remove: Event\n * Fired after the layer is removed from a map\n */\n\n\nL.Layer = L.Evented.extend({\n\n\t// Classes extending `L.Layer` will inherit the following options:\n\toptions: {\n\t\t// @option pane: String = 'overlayPane'\n\t\t// By default the layer will be added to the map's [overlay pane](#map-overlaypane). Overriding this option will cause the layer to be placed on another pane by default.\n\t\tpane: 'overlayPane',\n\t\tnonBubblingEvents: [],  // Array of events that should not be bubbled to DOM parents (like the map),\n\n\t\t// @option attribution: String = null\n\t\t// String to be shown in the attribution control, describes the layer data, e.g. \"© Mapbox\".\n\t\tattribution: null,\n\t},\n\n\t/* @section\n\t * Classes extending `L.Layer` will inherit the following methods:\n\t *\n\t * @method addTo(map: Map): this\n\t * Adds the layer to the given map\n\t */\n\taddTo: function (map) {\n\t\tmap.addLayer(this);\n\t\treturn this;\n\t},\n\n\t// @method remove: this\n\t// Removes the layer from the map it is currently active on.\n\tremove: function () {\n\t\treturn this.removeFrom(this._map || this._mapToAdd);\n\t},\n\n\t// @method removeFrom(map: Map): this\n\t// Removes the layer from the given map\n\tremoveFrom: function (obj) {\n\t\tif (obj) {\n\t\t\tobj.removeLayer(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method getPane(name? : String): HTMLElement\n\t// Returns the `HTMLElement` representing the named pane on the map. If `name` is omitted, returns the pane for this layer.\n\tgetPane: function (name) {\n\t\treturn this._map.getPane(name ? (this.options[name] || name) : this.options.pane);\n\t},\n\n\taddInteractiveTarget: function (targetEl) {\n\t\tthis._map._targets[L.stamp(targetEl)] = this;\n\t\treturn this;\n\t},\n\n\tremoveInteractiveTarget: function (targetEl) {\n\t\tdelete this._map._targets[L.stamp(targetEl)];\n\t\treturn this;\n\t},\n\n\t// @method getAttribution: String\n\t// Used by the `attribution control`, returns the [attribution option](#gridlayer-attribution).\n\tgetAttribution: function () {\n\t\treturn this.options.attribution;\n\t},\n\n\t_layerAdd: function (e) {\n\t\tvar map = e.target;\n\n\t\t// check in case layer gets added and then removed before the map is ready\n\t\tif (!map.hasLayer(this)) { return; }\n\n\t\tthis._map = map;\n\t\tthis._zoomAnimated = map._zoomAnimated;\n\n\t\tif (this.getEvents) {\n\t\t\tvar events = this.getEvents();\n\t\t\tmap.on(events, this);\n\t\t\tthis.once('remove', function () {\n\t\t\t\tmap.off(events, this);\n\t\t\t}, this);\n\t\t}\n\n\t\tthis.onAdd(map);\n\n\t\tif (this.getAttribution && this._map.attributionControl) {\n\t\t\tthis._map.attributionControl.addAttribution(this.getAttribution());\n\t\t}\n\n\t\tthis.fire('add');\n\t\tmap.fire('layeradd', {layer: this});\n\t}\n});\n\n/* @section Extension methods\n * @uninheritable\n *\n * Every layer should extend from `L.Layer` and (re-)implement the following methods.\n *\n * @method onAdd(map: Map): this\n * Should contain code that creates DOM elements for the layer, adds them to `map panes` where they should belong and puts listeners on relevant map events. Called on [`map.addLayer(layer)`](#map-addlayer).\n *\n * @method onRemove(map: Map): this\n * Should contain all clean up code that removes the layer's elements from the DOM and removes listeners previously added in [`onAdd`](#layer-onadd). Called on [`map.removeLayer(layer)`](#map-removelayer).\n *\n * @method getEvents(): Object\n * This optional method should return an object like `{ viewreset: this._reset }` for [`addEventListener`](#evented-addeventlistener). The event handlers in this object will be automatically added and removed from the map with your layer.\n *\n * @method getAttribution(): String\n * This optional method should return a string containing HTML to be shown on the `Attribution control` whenever the layer is visible.\n *\n * @method beforeAdd(map: Map): this\n * Optional method. Called on [`map.addLayer(layer)`](#map-addlayer), before the layer is added to the map, before events are initialized, without waiting until the map is in a usable state. Use for early initialization only.\n */\n\n\n/* @namespace Map\n * @section Layer events\n *\n * @event layeradd: LayerEvent\n * Fired when a new layer is added to the map.\n *\n * @event layerremove: LayerEvent\n * Fired when some layer is removed from the map\n *\n * @section Methods for Layers and Controls\n */\nL.Map.include({\n\t// @method addLayer(layer: Layer): this\n\t// Adds the given layer to the map\n\taddLayer: function (layer) {\n\t\tvar id = L.stamp(layer);\n\t\tif (this._layers[id]) { return this; }\n\t\tthis._layers[id] = layer;\n\n\t\tlayer._mapToAdd = this;\n\n\t\tif (layer.beforeAdd) {\n\t\t\tlayer.beforeAdd(this);\n\t\t}\n\n\t\tthis.whenReady(layer._layerAdd, layer);\n\n\t\treturn this;\n\t},\n\n\t// @method removeLayer(layer: Layer): this\n\t// Removes the given layer from the map.\n\tremoveLayer: function (layer) {\n\t\tvar id = L.stamp(layer);\n\n\t\tif (!this._layers[id]) { return this; }\n\n\t\tif (this._loaded) {\n\t\t\tlayer.onRemove(this);\n\t\t}\n\n\t\tif (layer.getAttribution && this.attributionControl) {\n\t\t\tthis.attributionControl.removeAttribution(layer.getAttribution());\n\t\t}\n\n\t\tdelete this._layers[id];\n\n\t\tif (this._loaded) {\n\t\t\tthis.fire('layerremove', {layer: layer});\n\t\t\tlayer.fire('remove');\n\t\t}\n\n\t\tlayer._map = layer._mapToAdd = null;\n\n\t\treturn this;\n\t},\n\n\t// @method hasLayer(layer: Layer): Boolean\n\t// Returns `true` if the given layer is currently added to the map\n\thasLayer: function (layer) {\n\t\treturn !!layer && (L.stamp(layer) in this._layers);\n\t},\n\n\t/* @method eachLayer(fn: Function, context?: Object): this\n\t * Iterates over the layers of the map, optionally specifying context of the iterator function.\n\t * ```\n\t * map.eachLayer(function(layer){\n\t *     layer.bindPopup('Hello');\n\t * });\n\t * ```\n\t */\n\teachLayer: function (method, context) {\n\t\tfor (var i in this._layers) {\n\t\t\tmethod.call(context, this._layers[i]);\n\t\t}\n\t\treturn this;\n\t},\n\n\t_addLayers: function (layers) {\n\t\tlayers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];\n\n\t\tfor (var i = 0, len = layers.length; i < len; i++) {\n\t\t\tthis.addLayer(layers[i]);\n\t\t}\n\t},\n\n\t_addZoomLimit: function (layer) {\n\t\tif (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) {\n\t\t\tthis._zoomBoundLayers[L.stamp(layer)] = layer;\n\t\t\tthis._updateZoomLevels();\n\t\t}\n\t},\n\n\t_removeZoomLimit: function (layer) {\n\t\tvar id = L.stamp(layer);\n\n\t\tif (this._zoomBoundLayers[id]) {\n\t\t\tdelete this._zoomBoundLayers[id];\n\t\t\tthis._updateZoomLevels();\n\t\t}\n\t},\n\n\t_updateZoomLevels: function () {\n\t\tvar minZoom = Infinity,\n\t\t    maxZoom = -Infinity,\n\t\t    oldZoomSpan = this._getZoomSpan();\n\n\t\tfor (var i in this._zoomBoundLayers) {\n\t\t\tvar options = this._zoomBoundLayers[i].options;\n\n\t\t\tminZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom);\n\t\t\tmaxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom);\n\t\t}\n\n\t\tthis._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom;\n\t\tthis._layersMinZoom = minZoom === Infinity ? undefined : minZoom;\n\n\t\t// @section Map state change events\n\t\t// @event zoomlevelschange: Event\n\t\t// Fired when the number of zoomlevels on the map is changed due\n\t\t// to adding or removing a layer.\n\t\tif (oldZoomSpan !== this._getZoomSpan()) {\n\t\t\tthis.fire('zoomlevelschange');\n\t\t}\n\n\t\tif (this.options.maxZoom === undefined && this._layersMaxZoom && this.getZoom() > this._layersMaxZoom) {\n\t\t\tthis.setZoom(this._layersMaxZoom);\n\t\t}\n\t\tif (this.options.minZoom === undefined && this._layersMinZoom && this.getZoom() < this._layersMinZoom) {\n\t\t\tthis.setZoom(this._layersMinZoom);\n\t\t}\n\t}\n});\n\n\n\n/*\r\n * @namespace DomEvent\r\n * Utility functions to work with the [DOM events](https://developer.mozilla.org/docs/Web/API/Event), used by Leaflet internally.\r\n */\r\n\r\n// Inspired by John Resig, Dean Edwards and YUI addEvent implementations.\r\n\r\n\r\n\r\nvar eventsKey = '_leaflet_events';\r\n\r\nL.DomEvent = {\r\n\r\n\t// @function on(el: HTMLElement, types: String, fn: Function, context?: Object): this\r\n\t// Adds a listener function (`fn`) to a particular DOM event type of the\r\n\t// element `el`. You can optionally specify the context of the listener\r\n\t// (object the `this` keyword will point to). You can also pass several\r\n\t// space-separated types (e.g. `'click dblclick'`).\r\n\r\n\t// @alternative\r\n\t// @function on(el: HTMLElement, eventMap: Object, context?: Object): this\r\n\t// Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`\r\n\ton: function (obj, types, fn, context) {\r\n\r\n\t\tif (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\tthis._on(obj, type, types[type], fn);\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\ttypes = L.Util.splitWords(types);\r\n\r\n\t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n\t\t\t\tthis._on(obj, types[i], fn, context);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @function off(el: HTMLElement, types: String, fn: Function, context?: Object): this\r\n\t// Removes a previously added listener function. If no function is specified,\r\n\t// it will remove all the listeners of that particular DOM event from the element.\r\n\t// Note that if you passed a custom context to on, you must pass the same\r\n\t// context to `off` in order to remove the listener.\r\n\r\n\t// @alternative\r\n\t// @function off(el: HTMLElement, eventMap: Object, context?: Object): this\r\n\t// Removes a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`\r\n\toff: function (obj, types, fn, context) {\r\n\r\n\t\tif (typeof types === 'object') {\r\n\t\t\tfor (var type in types) {\r\n\t\t\t\tthis._off(obj, type, types[type], fn);\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\ttypes = L.Util.splitWords(types);\r\n\r\n\t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n\t\t\t\tthis._off(obj, types[i], fn, context);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_on: function (obj, type, fn, context) {\r\n\t\tvar id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : '');\r\n\r\n\t\tif (obj[eventsKey] && obj[eventsKey][id]) { return this; }\r\n\r\n\t\tvar handler = function (e) {\r\n\t\t\treturn fn.call(context || obj, e || window.event);\r\n\t\t};\r\n\r\n\t\tvar originalHandler = handler;\r\n\r\n\t\tif (L.Browser.pointer && type.indexOf('touch') === 0) {\r\n\t\t\tthis.addPointerListener(obj, type, handler, id);\r\n\r\n\t\t} else if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) {\r\n\t\t\tthis.addDoubleTapListener(obj, handler, id);\r\n\r\n\t\t} else if ('addEventListener' in obj) {\r\n\r\n\t\t\tif (type === 'mousewheel') {\r\n\t\t\t\tobj.addEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);\r\n\r\n\t\t\t} else if ((type === 'mouseenter') || (type === 'mouseleave')) {\r\n\t\t\t\thandler = function (e) {\r\n\t\t\t\t\te = e || window.event;\r\n\t\t\t\t\tif (L.DomEvent._isExternalTarget(obj, e)) {\r\n\t\t\t\t\t\toriginalHandler(e);\r\n\t\t\t\t\t}\r\n\t\t\t\t};\r\n\t\t\t\tobj.addEventListener(type === 'mouseenter' ? 'mouseover' : 'mouseout', handler, false);\r\n\r\n\t\t\t} else {\r\n\t\t\t\tif (type === 'click' && L.Browser.android) {\r\n\t\t\t\t\thandler = function (e) {\r\n\t\t\t\t\t\treturn L.DomEvent._filterClick(e, originalHandler);\r\n\t\t\t\t\t};\r\n\t\t\t\t}\r\n\t\t\t\tobj.addEventListener(type, handler, false);\r\n\t\t\t}\r\n\r\n\t\t} else if ('attachEvent' in obj) {\r\n\t\t\tobj.attachEvent('on' + type, handler);\r\n\t\t}\r\n\r\n\t\tobj[eventsKey] = obj[eventsKey] || {};\r\n\t\tobj[eventsKey][id] = handler;\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_off: function (obj, type, fn, context) {\r\n\r\n\t\tvar id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : ''),\r\n\t\t    handler = obj[eventsKey] && obj[eventsKey][id];\r\n\r\n\t\tif (!handler) { return this; }\r\n\r\n\t\tif (L.Browser.pointer && type.indexOf('touch') === 0) {\r\n\t\t\tthis.removePointerListener(obj, type, id);\r\n\r\n\t\t} else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {\r\n\t\t\tthis.removeDoubleTapListener(obj, id);\r\n\r\n\t\t} else if ('removeEventListener' in obj) {\r\n\r\n\t\t\tif (type === 'mousewheel') {\r\n\t\t\t\tobj.removeEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);\r\n\r\n\t\t\t} else {\r\n\t\t\t\tobj.removeEventListener(\r\n\t\t\t\t\ttype === 'mouseenter' ? 'mouseover' :\r\n\t\t\t\t\ttype === 'mouseleave' ? 'mouseout' : type, handler, false);\r\n\t\t\t}\r\n\r\n\t\t} else if ('detachEvent' in obj) {\r\n\t\t\tobj.detachEvent('on' + type, handler);\r\n\t\t}\r\n\r\n\t\tobj[eventsKey][id] = null;\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @function stopPropagation(ev: DOMEvent): this\r\n\t// Stop the given event from propagation to parent elements. Used inside the listener functions:\r\n\t// ```js\r\n\t// L.DomEvent.on(div, 'click', function (ev) {\r\n\t// \tL.DomEvent.stopPropagation(ev);\r\n\t// });\r\n\t// ```\r\n\tstopPropagation: function (e) {\r\n\r\n\t\tif (e.stopPropagation) {\r\n\t\t\te.stopPropagation();\r\n\t\t} else if (e.originalEvent) {  // In case of Leaflet event.\r\n\t\t\te.originalEvent._stopped = true;\r\n\t\t} else {\r\n\t\t\te.cancelBubble = true;\r\n\t\t}\r\n\t\tL.DomEvent._skipped(e);\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @function disableScrollPropagation(el: HTMLElement): this\r\n\t// Adds `stopPropagation` to the element's `'mousewheel'` events (plus browser variants).\r\n\tdisableScrollPropagation: function (el) {\r\n\t\treturn L.DomEvent.on(el, 'mousewheel', L.DomEvent.stopPropagation);\r\n\t},\r\n\r\n\t// @function disableClickPropagation(el: HTMLElement): this\r\n\t// Adds `stopPropagation` to the element's `'click'`, `'doubleclick'`,\r\n\t// `'mousedown'` and `'touchstart'` events (plus browser variants).\r\n\tdisableClickPropagation: function (el) {\r\n\t\tvar stop = L.DomEvent.stopPropagation;\r\n\r\n\t\tL.DomEvent.on(el, L.Draggable.START.join(' '), stop);\r\n\r\n\t\treturn L.DomEvent.on(el, {\r\n\t\t\tclick: L.DomEvent._fakeStop,\r\n\t\t\tdblclick: stop\r\n\t\t});\r\n\t},\r\n\r\n\t// @function preventDefault(ev: DOMEvent): this\r\n\t// Prevents the default action of the DOM Event `ev` from happening (such as\r\n\t// following a link in the href of the a element, or doing a POST request\r\n\t// with page reload when a `<form>` is submitted).\r\n\t// Use it inside listener functions.\r\n\tpreventDefault: function (e) {\r\n\r\n\t\tif (e.preventDefault) {\r\n\t\t\te.preventDefault();\r\n\t\t} else {\r\n\t\t\te.returnValue = false;\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @function stop(ev): this\r\n\t// Does `stopPropagation` and `preventDefault` at the same time.\r\n\tstop: function (e) {\r\n\t\treturn L.DomEvent\r\n\t\t\t.preventDefault(e)\r\n\t\t\t.stopPropagation(e);\r\n\t},\r\n\r\n\t// @function getMousePosition(ev: DOMEvent, container?: HTMLElement): Point\r\n\t// Gets normalized mouse position from a DOM event relative to the\r\n\t// `container` or to the whole page if not specified.\r\n\tgetMousePosition: function (e, container) {\r\n\t\tif (!container) {\r\n\t\t\treturn new L.Point(e.clientX, e.clientY);\r\n\t\t}\r\n\r\n\t\tvar rect = container.getBoundingClientRect();\r\n\r\n\t\treturn new L.Point(\r\n\t\t\te.clientX - rect.left - container.clientLeft,\r\n\t\t\te.clientY - rect.top - container.clientTop);\r\n\t},\r\n\r\n\t// Chrome on Win scrolls double the pixels as in other platforms (see #4538),\r\n\t// and Firefox scrolls device pixels, not CSS pixels\r\n\t_wheelPxFactor: (L.Browser.win && L.Browser.chrome) ? 2 :\r\n\t                L.Browser.gecko ? window.devicePixelRatio :\r\n\t                1,\r\n\r\n\t// @function getWheelDelta(ev: DOMEvent): Number\r\n\t// Gets normalized wheel delta from a mousewheel DOM event, in vertical\r\n\t// pixels scrolled (negative if scrolling down).\r\n\t// Events from pointing devices without precise scrolling are mapped to\r\n\t// a best guess of 60 pixels.\r\n\tgetWheelDelta: function (e) {\r\n\t\treturn (L.Browser.edge) ? e.wheelDeltaY / 2 : // Don't trust window-geometry-based delta\r\n\t\t       (e.deltaY && e.deltaMode === 0) ? -e.deltaY / L.DomEvent._wheelPxFactor : // Pixels\r\n\t\t       (e.deltaY && e.deltaMode === 1) ? -e.deltaY * 20 : // Lines\r\n\t\t       (e.deltaY && e.deltaMode === 2) ? -e.deltaY * 60 : // Pages\r\n\t\t       (e.deltaX || e.deltaZ) ? 0 :\t// Skip horizontal/depth wheel events\r\n\t\t       e.wheelDelta ? (e.wheelDeltaY || e.wheelDelta) / 2 : // Legacy IE pixels\r\n\t\t       (e.detail && Math.abs(e.detail) < 32765) ? -e.detail * 20 : // Legacy Moz lines\r\n\t\t       e.detail ? e.detail / -32765 * 60 : // Legacy Moz pages\r\n\t\t       0;\r\n\t},\r\n\r\n\t_skipEvents: {},\r\n\r\n\t_fakeStop: function (e) {\r\n\t\t// fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e)\r\n\t\tL.DomEvent._skipEvents[e.type] = true;\r\n\t},\r\n\r\n\t_skipped: function (e) {\r\n\t\tvar skipped = this._skipEvents[e.type];\r\n\t\t// reset when checking, as it's only used in map container and propagates outside of the map\r\n\t\tthis._skipEvents[e.type] = false;\r\n\t\treturn skipped;\r\n\t},\r\n\r\n\t// check if element really left/entered the event target (for mouseenter/mouseleave)\r\n\t_isExternalTarget: function (el, e) {\r\n\r\n\t\tvar related = e.relatedTarget;\r\n\r\n\t\tif (!related) { return true; }\r\n\r\n\t\ttry {\r\n\t\t\twhile (related && (related !== el)) {\r\n\t\t\t\trelated = related.parentNode;\r\n\t\t\t}\r\n\t\t} catch (err) {\r\n\t\t\treturn false;\r\n\t\t}\r\n\t\treturn (related !== el);\r\n\t},\r\n\r\n\t// this is a horrible workaround for a bug in Android where a single touch triggers two click events\r\n\t_filterClick: function (e, handler) {\r\n\t\tvar timeStamp = (e.timeStamp || (e.originalEvent && e.originalEvent.timeStamp)),\r\n\t\t    elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick);\r\n\r\n\t\t// are they closer together than 500ms yet more than 100ms?\r\n\t\t// Android typically triggers them ~300ms apart while multiple listeners\r\n\t\t// on the same event should be triggered far faster;\r\n\t\t// or check if click is simulated on the element, and if it is, reject any non-simulated events\r\n\r\n\t\tif ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {\r\n\t\t\tL.DomEvent.stop(e);\r\n\t\t\treturn;\r\n\t\t}\r\n\t\tL.DomEvent._lastClick = timeStamp;\r\n\r\n\t\thandler(e);\r\n\t}\r\n};\r\n\r\n// @function addListener(…): this\r\n// Alias to [`L.DomEvent.on`](#domevent-on)\r\nL.DomEvent.addListener = L.DomEvent.on;\r\n\r\n// @function removeListener(…): this\r\n// Alias to [`L.DomEvent.off`](#domevent-off)\r\nL.DomEvent.removeListener = L.DomEvent.off;\r\n\n\n\n/*\n * @class PosAnimation\n * @aka L.PosAnimation\n * @inherits Evented\n * Used internally for panning animations, utilizing CSS3 Transitions for modern browsers and a timer fallback for IE6-9.\n *\n * @example\n * ```js\n * var fx = new L.PosAnimation();\n * fx.run(el, [300, 500], 0.5);\n * ```\n *\n * @constructor L.PosAnimation()\n * Creates a `PosAnimation` object.\n *\n */\n\nL.PosAnimation = L.Evented.extend({\n\n\t// @method run(el: HTMLElement, newPos: Point, duration?: Number, easeLinearity?: Number)\n\t// Run an animation of a given element to a new position, optionally setting\n\t// duration in seconds (`0.25` by default) and easing linearity factor (3rd\n\t// argument of the [cubic bezier curve](http://cubic-bezier.com/#0,0,.5,1),\n\t// `0.5` by default).\n\trun: function (el, newPos, duration, easeLinearity) {\n\t\tthis.stop();\n\n\t\tthis._el = el;\n\t\tthis._inProgress = true;\n\t\tthis._duration = duration || 0.25;\n\t\tthis._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);\n\n\t\tthis._startPos = L.DomUtil.getPosition(el);\n\t\tthis._offset = newPos.subtract(this._startPos);\n\t\tthis._startTime = +new Date();\n\n\t\t// @event start: Event\n\t\t// Fired when the animation starts\n\t\tthis.fire('start');\n\n\t\tthis._animate();\n\t},\n\n\t// @method stop()\n\t// Stops the animation (if currently running).\n\tstop: function () {\n\t\tif (!this._inProgress) { return; }\n\n\t\tthis._step(true);\n\t\tthis._complete();\n\t},\n\n\t_animate: function () {\n\t\t// animation loop\n\t\tthis._animId = L.Util.requestAnimFrame(this._animate, this);\n\t\tthis._step();\n\t},\n\n\t_step: function (round) {\n\t\tvar elapsed = (+new Date()) - this._startTime,\n\t\t    duration = this._duration * 1000;\n\n\t\tif (elapsed < duration) {\n\t\t\tthis._runFrame(this._easeOut(elapsed / duration), round);\n\t\t} else {\n\t\t\tthis._runFrame(1);\n\t\t\tthis._complete();\n\t\t}\n\t},\n\n\t_runFrame: function (progress, round) {\n\t\tvar pos = this._startPos.add(this._offset.multiplyBy(progress));\n\t\tif (round) {\n\t\t\tpos._round();\n\t\t}\n\t\tL.DomUtil.setPosition(this._el, pos);\n\n\t\t// @event step: Event\n\t\t// Fired continuously during the animation.\n\t\tthis.fire('step');\n\t},\n\n\t_complete: function () {\n\t\tL.Util.cancelAnimFrame(this._animId);\n\n\t\tthis._inProgress = false;\n\t\t// @event end: Event\n\t\t// Fired when the animation ends.\n\t\tthis.fire('end');\n\t},\n\n\t_easeOut: function (t) {\n\t\treturn 1 - Math.pow(1 - t, this._easeOutPower);\n\t}\n});\n\n\n\n/*\r\n * @namespace Projection\r\n * @projection L.Projection.Mercator\r\n *\r\n * Elliptical Mercator projection — more complex than Spherical Mercator. Takes into account that Earth is a geoid, not a perfect sphere. Used by the EPSG:3395 CRS.\r\n */\r\n\r\nL.Projection.Mercator = {\r\n\tR: 6378137,\r\n\tR_MINOR: 6356752.314245179,\r\n\r\n\tbounds: L.bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]),\r\n\r\n\tproject: function (latlng) {\r\n\t\tvar d = Math.PI / 180,\r\n\t\t    r = this.R,\r\n\t\t    y = latlng.lat * d,\r\n\t\t    tmp = this.R_MINOR / r,\r\n\t\t    e = Math.sqrt(1 - tmp * tmp),\r\n\t\t    con = e * Math.sin(y);\r\n\r\n\t\tvar ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2);\r\n\t\ty = -r * Math.log(Math.max(ts, 1E-10));\r\n\r\n\t\treturn new L.Point(latlng.lng * d * r, y);\r\n\t},\r\n\r\n\tunproject: function (point) {\r\n\t\tvar d = 180 / Math.PI,\r\n\t\t    r = this.R,\r\n\t\t    tmp = this.R_MINOR / r,\r\n\t\t    e = Math.sqrt(1 - tmp * tmp),\r\n\t\t    ts = Math.exp(-point.y / r),\r\n\t\t    phi = Math.PI / 2 - 2 * Math.atan(ts);\r\n\r\n\t\tfor (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) {\r\n\t\t\tcon = e * Math.sin(phi);\r\n\t\t\tcon = Math.pow((1 - con) / (1 + con), e / 2);\r\n\t\t\tdphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi;\r\n\t\t\tphi += dphi;\r\n\t\t}\r\n\r\n\t\treturn new L.LatLng(phi * d, point.x * d / r);\r\n\t}\r\n};\r\n\n\n\n/*\r\n * @namespace CRS\r\n * @crs L.CRS.EPSG3395\r\n *\r\n * Rarely used by some commercial tile providers. Uses Elliptical Mercator projection.\r\n */\r\n\r\nL.CRS.EPSG3395 = L.extend({}, L.CRS.Earth, {\r\n\tcode: 'EPSG:3395',\r\n\tprojection: L.Projection.Mercator,\r\n\r\n\ttransformation: (function () {\r\n\t\tvar scale = 0.5 / (Math.PI * L.Projection.Mercator.R);\r\n\t\treturn new L.Transformation(scale, 0.5, -scale, 0.5);\r\n\t}())\r\n});\r\n\n\n\n/*\n * @class GridLayer\n * @inherits Layer\n * @aka L.GridLayer\n *\n * Generic class for handling a tiled grid of HTML elements. This is the base class for all tile layers and replaces `TileLayer.Canvas`.\n * GridLayer can be extended to create a tiled grid of HTML elements like `<canvas>`, `<img>` or `<div>`. GridLayer will handle creating and animating these DOM elements for you.\n *\n *\n * @section Synchronous usage\n * @example\n *\n * To create a custom layer, extend GridLayer and implement the `createTile()` method, which will be passed a `Point` object with the `x`, `y`, and `z` (zoom level) coordinates to draw your tile.\n *\n * ```js\n * var CanvasLayer = L.GridLayer.extend({\n *     createTile: function(coords){\n *         // create a <canvas> element for drawing\n *         var tile = L.DomUtil.create('canvas', 'leaflet-tile');\n *\n *         // setup tile width and height according to the options\n *         var size = this.getTileSize();\n *         tile.width = size.x;\n *         tile.height = size.y;\n *\n *         // get a canvas context and draw something on it using coords.x, coords.y and coords.z\n *         var ctx = tile.getContext('2d');\n *\n *         // return the tile so it can be rendered on screen\n *         return tile;\n *     }\n * });\n * ```\n *\n * @section Asynchronous usage\n * @example\n *\n * Tile creation can also be asynchronous, this is useful when using a third-party drawing library. Once the tile is finished drawing it can be passed to the `done()` callback.\n *\n * ```js\n * var CanvasLayer = L.GridLayer.extend({\n *     createTile: function(coords, done){\n *         var error;\n *\n *         // create a <canvas> element for drawing\n *         var tile = L.DomUtil.create('canvas', 'leaflet-tile');\n *\n *         // setup tile width and height according to the options\n *         var size = this.getTileSize();\n *         tile.width = size.x;\n *         tile.height = size.y;\n *\n *         // draw something asynchronously and pass the tile to the done() callback\n *         setTimeout(function() {\n *             done(error, tile);\n *         }, 1000);\n *\n *         return tile;\n *     }\n * });\n * ```\n *\n * @section\n */\n\n\nL.GridLayer = L.Layer.extend({\n\n\t// @section\n\t// @aka GridLayer options\n\toptions: {\n\t\t// @option tileSize: Number|Point = 256\n\t\t// Width and height of tiles in the grid. Use a number if width and height are equal, or `L.point(width, height)` otherwise.\n\t\ttileSize: 256,\n\n\t\t// @option opacity: Number = 1.0\n\t\t// Opacity of the tiles. Can be used in the `createTile()` function.\n\t\topacity: 1,\n\n\t\t// @option updateWhenIdle: Boolean = depends\n\t\t// If `false`, new tiles are loaded during panning, otherwise only after it (for better performance). `true` by default on mobile browsers, otherwise `false`.\n\t\tupdateWhenIdle: L.Browser.mobile,\n\n\t\t// @option updateWhenZooming: Boolean = true\n\t\t// By default, a smooth zoom animation (during a [touch zoom](#map-touchzoom) or a [`flyTo()`](#map-flyto)) will update grid layers every integer zoom level. Setting this option to `false` will update the grid layer only when the smooth animation ends.\n\t\tupdateWhenZooming: true,\n\n\t\t// @option updateInterval: Number = 200\n\t\t// Tiles will not update more than once every `updateInterval` milliseconds when panning.\n\t\tupdateInterval: 200,\n\n\t\t// @option zIndex: Number = 1\n\t\t// The explicit zIndex of the tile layer.\n\t\tzIndex: 1,\n\n\t\t// @option bounds: LatLngBounds = undefined\n\t\t// If set, tiles will only be loaded inside the set `LatLngBounds`.\n\t\tbounds: null,\n\n\t\t// @option minZoom: Number = 0\n\t\t// The minimum zoom level that tiles will be loaded at. By default the entire map.\n\t\tminZoom: 0,\n\n\t\t// @option maxZoom: Number = undefined\n\t\t// The maximum zoom level that tiles will be loaded at.\n\t\tmaxZoom: undefined,\n\n\t\t// @option noWrap: Boolean = false\n\t\t// Whether the layer is wrapped around the antimeridian. If `true`, the\n\t\t// GridLayer will only be displayed once at low zoom levels. Has no\n\t\t// effect when the [map CRS](#map-crs) doesn't wrap around.\n\t\tnoWrap: false,\n\n\t\t// @option pane: String = 'tilePane'\n\t\t// `Map pane` where the grid layer will be added.\n\t\tpane: 'tilePane',\n\n\t\t// @option className: String = ''\n\t\t// A custom class name to assign to the tile layer. Empty by default.\n\t\tclassName: '',\n\n\t\t// @option keepBuffer: Number = 2\n\t\t// When panning the map, keep this many rows and columns of tiles before unloading them.\n\t\tkeepBuffer: 2\n\t},\n\n\tinitialize: function (options) {\n\t\tL.setOptions(this, options);\n\t},\n\n\tonAdd: function () {\n\t\tthis._initContainer();\n\n\t\tthis._levels = {};\n\t\tthis._tiles = {};\n\n\t\tthis._resetView();\n\t\tthis._update();\n\t},\n\n\tbeforeAdd: function (map) {\n\t\tmap._addZoomLimit(this);\n\t},\n\n\tonRemove: function (map) {\n\t\tthis._removeAllTiles();\n\t\tL.DomUtil.remove(this._container);\n\t\tmap._removeZoomLimit(this);\n\t\tthis._container = null;\n\t\tthis._tileZoom = null;\n\t},\n\n\t// @method bringToFront: this\n\t// Brings the tile layer to the top of all tile layers.\n\tbringToFront: function () {\n\t\tif (this._map) {\n\t\t\tL.DomUtil.toFront(this._container);\n\t\t\tthis._setAutoZIndex(Math.max);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method bringToBack: this\n\t// Brings the tile layer to the bottom of all tile layers.\n\tbringToBack: function () {\n\t\tif (this._map) {\n\t\t\tL.DomUtil.toBack(this._container);\n\t\t\tthis._setAutoZIndex(Math.min);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method getContainer: HTMLElement\n\t// Returns the HTML element that contains the tiles for this layer.\n\tgetContainer: function () {\n\t\treturn this._container;\n\t},\n\n\t// @method setOpacity(opacity: Number): this\n\t// Changes the [opacity](#gridlayer-opacity) of the grid layer.\n\tsetOpacity: function (opacity) {\n\t\tthis.options.opacity = opacity;\n\t\tthis._updateOpacity();\n\t\treturn this;\n\t},\n\n\t// @method setZIndex(zIndex: Number): this\n\t// Changes the [zIndex](#gridlayer-zindex) of the grid layer.\n\tsetZIndex: function (zIndex) {\n\t\tthis.options.zIndex = zIndex;\n\t\tthis._updateZIndex();\n\n\t\treturn this;\n\t},\n\n\t// @method isLoading: Boolean\n\t// Returns `true` if any tile in the grid layer has not finished loading.\n\tisLoading: function () {\n\t\treturn this._loading;\n\t},\n\n\t// @method redraw: this\n\t// Causes the layer to clear all the tiles and request them again.\n\tredraw: function () {\n\t\tif (this._map) {\n\t\t\tthis._removeAllTiles();\n\t\t\tthis._update();\n\t\t}\n\t\treturn this;\n\t},\n\n\tgetEvents: function () {\n\t\tvar events = {\n\t\t\tviewprereset: this._invalidateAll,\n\t\t\tviewreset: this._resetView,\n\t\t\tzoom: this._resetView,\n\t\t\tmoveend: this._onMoveEnd\n\t\t};\n\n\t\tif (!this.options.updateWhenIdle) {\n\t\t\t// update tiles on move, but not more often than once per given interval\n\t\t\tif (!this._onMove) {\n\t\t\t\tthis._onMove = L.Util.throttle(this._onMoveEnd, this.options.updateInterval, this);\n\t\t\t}\n\n\t\t\tevents.move = this._onMove;\n\t\t}\n\n\t\tif (this._zoomAnimated) {\n\t\t\tevents.zoomanim = this._animateZoom;\n\t\t}\n\n\t\treturn events;\n\t},\n\n\t// @section Extension methods\n\t// Layers extending `GridLayer` shall reimplement the following method.\n\t// @method createTile(coords: Object, done?: Function): HTMLElement\n\t// Called only internally, must be overriden by classes extending `GridLayer`.\n\t// Returns the `HTMLElement` corresponding to the given `coords`. If the `done` callback\n\t// is specified, it must be called when the tile has finished loading and drawing.\n\tcreateTile: function () {\n\t\treturn document.createElement('div');\n\t},\n\n\t// @section\n\t// @method getTileSize: Point\n\t// Normalizes the [tileSize option](#gridlayer-tilesize) into a point. Used by the `createTile()` method.\n\tgetTileSize: function () {\n\t\tvar s = this.options.tileSize;\n\t\treturn s instanceof L.Point ? s : new L.Point(s, s);\n\t},\n\n\t_updateZIndex: function () {\n\t\tif (this._container && this.options.zIndex !== undefined && this.options.zIndex !== null) {\n\t\t\tthis._container.style.zIndex = this.options.zIndex;\n\t\t}\n\t},\n\n\t_setAutoZIndex: function (compare) {\n\t\t// go through all other layers of the same pane, set zIndex to max + 1 (front) or min - 1 (back)\n\n\t\tvar layers = this.getPane().children,\n\t\t    edgeZIndex = -compare(-Infinity, Infinity); // -Infinity for max, Infinity for min\n\n\t\tfor (var i = 0, len = layers.length, zIndex; i < len; i++) {\n\n\t\t\tzIndex = layers[i].style.zIndex;\n\n\t\t\tif (layers[i] !== this._container && zIndex) {\n\t\t\t\tedgeZIndex = compare(edgeZIndex, +zIndex);\n\t\t\t}\n\t\t}\n\n\t\tif (isFinite(edgeZIndex)) {\n\t\t\tthis.options.zIndex = edgeZIndex + compare(-1, 1);\n\t\t\tthis._updateZIndex();\n\t\t}\n\t},\n\n\t_updateOpacity: function () {\n\t\tif (!this._map) { return; }\n\n\t\t// IE doesn't inherit filter opacity properly, so we're forced to set it on tiles\n\t\tif (L.Browser.ielt9) { return; }\n\n\t\tL.DomUtil.setOpacity(this._container, this.options.opacity);\n\n\t\tvar now = +new Date(),\n\t\t    nextFrame = false,\n\t\t    willPrune = false;\n\n\t\tfor (var key in this._tiles) {\n\t\t\tvar tile = this._tiles[key];\n\t\t\tif (!tile.current || !tile.loaded) { continue; }\n\n\t\t\tvar fade = Math.min(1, (now - tile.loaded) / 200);\n\n\t\t\tL.DomUtil.setOpacity(tile.el, fade);\n\t\t\tif (fade < 1) {\n\t\t\t\tnextFrame = true;\n\t\t\t} else {\n\t\t\t\tif (tile.active) { willPrune = true; }\n\t\t\t\ttile.active = true;\n\t\t\t}\n\t\t}\n\n\t\tif (willPrune && !this._noPrune) { this._pruneTiles(); }\n\n\t\tif (nextFrame) {\n\t\t\tL.Util.cancelAnimFrame(this._fadeFrame);\n\t\t\tthis._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);\n\t\t}\n\t},\n\n\t_initContainer: function () {\n\t\tif (this._container) { return; }\n\n\t\tthis._container = L.DomUtil.create('div', 'leaflet-layer ' + (this.options.className || ''));\n\t\tthis._updateZIndex();\n\n\t\tif (this.options.opacity < 1) {\n\t\t\tthis._updateOpacity();\n\t\t}\n\n\t\tthis.getPane().appendChild(this._container);\n\t},\n\n\t_updateLevels: function () {\n\n\t\tvar zoom = this._tileZoom,\n\t\t    maxZoom = this.options.maxZoom;\n\n\t\tif (zoom === undefined) { return undefined; }\n\n\t\tfor (var z in this._levels) {\n\t\t\tif (this._levels[z].el.children.length || z === zoom) {\n\t\t\t\tthis._levels[z].el.style.zIndex = maxZoom - Math.abs(zoom - z);\n\t\t\t} else {\n\t\t\t\tL.DomUtil.remove(this._levels[z].el);\n\t\t\t\tthis._removeTilesAtZoom(z);\n\t\t\t\tdelete this._levels[z];\n\t\t\t}\n\t\t}\n\n\t\tvar level = this._levels[zoom],\n\t\t    map = this._map;\n\n\t\tif (!level) {\n\t\t\tlevel = this._levels[zoom] = {};\n\n\t\t\tlevel.el = L.DomUtil.create('div', 'leaflet-tile-container leaflet-zoom-animated', this._container);\n\t\t\tlevel.el.style.zIndex = maxZoom;\n\n\t\t\tlevel.origin = map.project(map.unproject(map.getPixelOrigin()), zoom).round();\n\t\t\tlevel.zoom = zoom;\n\n\t\t\tthis._setZoomTransform(level, map.getCenter(), map.getZoom());\n\n\t\t\t// force the browser to consider the newly added element for transition\n\t\t\tL.Util.falseFn(level.el.offsetWidth);\n\t\t}\n\n\t\tthis._level = level;\n\n\t\treturn level;\n\t},\n\n\t_pruneTiles: function () {\n\t\tif (!this._map) {\n\t\t\treturn;\n\t\t}\n\n\t\tvar key, tile;\n\n\t\tvar zoom = this._map.getZoom();\n\t\tif (zoom > this.options.maxZoom ||\n\t\t\tzoom < this.options.minZoom) {\n\t\t\tthis._removeAllTiles();\n\t\t\treturn;\n\t\t}\n\n\t\tfor (key in this._tiles) {\n\t\t\ttile = this._tiles[key];\n\t\t\ttile.retain = tile.current;\n\t\t}\n\n\t\tfor (key in this._tiles) {\n\t\t\ttile = this._tiles[key];\n\t\t\tif (tile.current && !tile.active) {\n\t\t\t\tvar coords = tile.coords;\n\t\t\t\tif (!this._retainParent(coords.x, coords.y, coords.z, coords.z - 5)) {\n\t\t\t\t\tthis._retainChildren(coords.x, coords.y, coords.z, coords.z + 2);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfor (key in this._tiles) {\n\t\t\tif (!this._tiles[key].retain) {\n\t\t\t\tthis._removeTile(key);\n\t\t\t}\n\t\t}\n\t},\n\n\t_removeTilesAtZoom: function (zoom) {\n\t\tfor (var key in this._tiles) {\n\t\t\tif (this._tiles[key].coords.z !== zoom) {\n\t\t\t\tcontinue;\n\t\t\t}\n\t\t\tthis._removeTile(key);\n\t\t}\n\t},\n\n\t_removeAllTiles: function () {\n\t\tfor (var key in this._tiles) {\n\t\t\tthis._removeTile(key);\n\t\t}\n\t},\n\n\t_invalidateAll: function () {\n\t\tfor (var z in this._levels) {\n\t\t\tL.DomUtil.remove(this._levels[z].el);\n\t\t\tdelete this._levels[z];\n\t\t}\n\t\tthis._removeAllTiles();\n\n\t\tthis._tileZoom = null;\n\t},\n\n\t_retainParent: function (x, y, z, minZoom) {\n\t\tvar x2 = Math.floor(x / 2),\n\t\t    y2 = Math.floor(y / 2),\n\t\t    z2 = z - 1,\n\t\t    coords2 = new L.Point(+x2, +y2);\n\t\tcoords2.z = +z2;\n\n\t\tvar key = this._tileCoordsToKey(coords2),\n\t\t    tile = this._tiles[key];\n\n\t\tif (tile && tile.active) {\n\t\t\ttile.retain = true;\n\t\t\treturn true;\n\n\t\t} else if (tile && tile.loaded) {\n\t\t\ttile.retain = true;\n\t\t}\n\n\t\tif (z2 > minZoom) {\n\t\t\treturn this._retainParent(x2, y2, z2, minZoom);\n\t\t}\n\n\t\treturn false;\n\t},\n\n\t_retainChildren: function (x, y, z, maxZoom) {\n\n\t\tfor (var i = 2 * x; i < 2 * x + 2; i++) {\n\t\t\tfor (var j = 2 * y; j < 2 * y + 2; j++) {\n\n\t\t\t\tvar coords = new L.Point(i, j);\n\t\t\t\tcoords.z = z + 1;\n\n\t\t\t\tvar key = this._tileCoordsToKey(coords),\n\t\t\t\t    tile = this._tiles[key];\n\n\t\t\t\tif (tile && tile.active) {\n\t\t\t\t\ttile.retain = true;\n\t\t\t\t\tcontinue;\n\n\t\t\t\t} else if (tile && tile.loaded) {\n\t\t\t\t\ttile.retain = true;\n\t\t\t\t}\n\n\t\t\t\tif (z + 1 < maxZoom) {\n\t\t\t\t\tthis._retainChildren(i, j, z + 1, maxZoom);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\t_resetView: function (e) {\n\t\tvar animating = e && (e.pinch || e.flyTo);\n\t\tthis._setView(this._map.getCenter(), this._map.getZoom(), animating, animating);\n\t},\n\n\t_animateZoom: function (e) {\n\t\tthis._setView(e.center, e.zoom, true, e.noUpdate);\n\t},\n\n\t_setView: function (center, zoom, noPrune, noUpdate) {\n\t\tvar tileZoom = Math.round(zoom);\n\t\tif ((this.options.maxZoom !== undefined && tileZoom > this.options.maxZoom) ||\n\t\t    (this.options.minZoom !== undefined && tileZoom < this.options.minZoom)) {\n\t\t\ttileZoom = undefined;\n\t\t}\n\n\t\tvar tileZoomChanged = this.options.updateWhenZooming && (tileZoom !== this._tileZoom);\n\n\t\tif (!noUpdate || tileZoomChanged) {\n\n\t\t\tthis._tileZoom = tileZoom;\n\n\t\t\tif (this._abortLoading) {\n\t\t\t\tthis._abortLoading();\n\t\t\t}\n\n\t\t\tthis._updateLevels();\n\t\t\tthis._resetGrid();\n\n\t\t\tif (tileZoom !== undefined) {\n\t\t\t\tthis._update(center);\n\t\t\t}\n\n\t\t\tif (!noPrune) {\n\t\t\t\tthis._pruneTiles();\n\t\t\t}\n\n\t\t\t// Flag to prevent _updateOpacity from pruning tiles during\n\t\t\t// a zoom anim or a pinch gesture\n\t\t\tthis._noPrune = !!noPrune;\n\t\t}\n\n\t\tthis._setZoomTransforms(center, zoom);\n\t},\n\n\t_setZoomTransforms: function (center, zoom) {\n\t\tfor (var i in this._levels) {\n\t\t\tthis._setZoomTransform(this._levels[i], center, zoom);\n\t\t}\n\t},\n\n\t_setZoomTransform: function (level, center, zoom) {\n\t\tvar scale = this._map.getZoomScale(zoom, level.zoom),\n\t\t    translate = level.origin.multiplyBy(scale)\n\t\t        .subtract(this._map._getNewPixelOrigin(center, zoom)).round();\n\n\t\tif (L.Browser.any3d) {\n\t\t\tL.DomUtil.setTransform(level.el, translate, scale);\n\t\t} else {\n\t\t\tL.DomUtil.setPosition(level.el, translate);\n\t\t}\n\t},\n\n\t_resetGrid: function () {\n\t\tvar map = this._map,\n\t\t    crs = map.options.crs,\n\t\t    tileSize = this._tileSize = this.getTileSize(),\n\t\t    tileZoom = this._tileZoom;\n\n\t\tvar bounds = this._map.getPixelWorldBounds(this._tileZoom);\n\t\tif (bounds) {\n\t\t\tthis._globalTileRange = this._pxBoundsToTileRange(bounds);\n\t\t}\n\n\t\tthis._wrapX = crs.wrapLng && !this.options.noWrap && [\n\t\t\tMath.floor(map.project([0, crs.wrapLng[0]], tileZoom).x / tileSize.x),\n\t\t\tMath.ceil(map.project([0, crs.wrapLng[1]], tileZoom).x / tileSize.y)\n\t\t];\n\t\tthis._wrapY = crs.wrapLat && !this.options.noWrap && [\n\t\t\tMath.floor(map.project([crs.wrapLat[0], 0], tileZoom).y / tileSize.x),\n\t\t\tMath.ceil(map.project([crs.wrapLat[1], 0], tileZoom).y / tileSize.y)\n\t\t];\n\t},\n\n\t_onMoveEnd: function () {\n\t\tif (!this._map || this._map._animatingZoom) { return; }\n\n\t\tthis._update();\n\t},\n\n\t_getTiledPixelBounds: function (center) {\n\t\tvar map = this._map,\n\t\t    mapZoom = map._animatingZoom ? Math.max(map._animateToZoom, map.getZoom()) : map.getZoom(),\n\t\t    scale = map.getZoomScale(mapZoom, this._tileZoom),\n\t\t    pixelCenter = map.project(center, this._tileZoom).floor(),\n\t\t    halfSize = map.getSize().divideBy(scale * 2);\n\n\t\treturn new L.Bounds(pixelCenter.subtract(halfSize), pixelCenter.add(halfSize));\n\t},\n\n\t// Private method to load tiles in the grid's active zoom level according to map bounds\n\t_update: function (center) {\n\t\tvar map = this._map;\n\t\tif (!map) { return; }\n\t\tvar zoom = map.getZoom();\n\n\t\tif (center === undefined) { center = map.getCenter(); }\n\t\tif (this._tileZoom === undefined) { return; }\t// if out of minzoom/maxzoom\n\n\t\tvar pixelBounds = this._getTiledPixelBounds(center),\n\t\t    tileRange = this._pxBoundsToTileRange(pixelBounds),\n\t\t    tileCenter = tileRange.getCenter(),\n\t\t    queue = [],\n\t\t    margin = this.options.keepBuffer,\n\t\t    noPruneRange = new L.Bounds(tileRange.getBottomLeft().subtract([margin, -margin]),\n\t\t                              tileRange.getTopRight().add([margin, -margin]));\n\n\t\tfor (var key in this._tiles) {\n\t\t\tvar c = this._tiles[key].coords;\n\t\t\tif (c.z !== this._tileZoom || !noPruneRange.contains(L.point(c.x, c.y))) {\n\t\t\t\tthis._tiles[key].current = false;\n\t\t\t}\n\t\t}\n\n\t\t// _update just loads more tiles. If the tile zoom level differs too much\n\t\t// from the map's, let _setView reset levels and prune old tiles.\n\t\tif (Math.abs(zoom - this._tileZoom) > 1) { this._setView(center, zoom); return; }\n\n\t\t// create a queue of coordinates to load tiles from\n\t\tfor (var j = tileRange.min.y; j <= tileRange.max.y; j++) {\n\t\t\tfor (var i = tileRange.min.x; i <= tileRange.max.x; i++) {\n\t\t\t\tvar coords = new L.Point(i, j);\n\t\t\t\tcoords.z = this._tileZoom;\n\n\t\t\t\tif (!this._isValidTile(coords)) { continue; }\n\n\t\t\t\tvar tile = this._tiles[this._tileCoordsToKey(coords)];\n\t\t\t\tif (tile) {\n\t\t\t\t\ttile.current = true;\n\t\t\t\t} else {\n\t\t\t\t\tqueue.push(coords);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// sort tile queue to load tiles in order of their distance to center\n\t\tqueue.sort(function (a, b) {\n\t\t\treturn a.distanceTo(tileCenter) - b.distanceTo(tileCenter);\n\t\t});\n\n\t\tif (queue.length !== 0) {\n\t\t\t// if it's the first batch of tiles to load\n\t\t\tif (!this._loading) {\n\t\t\t\tthis._loading = true;\n\t\t\t\t// @event loading: Event\n\t\t\t\t// Fired when the grid layer starts loading tiles.\n\t\t\t\tthis.fire('loading');\n\t\t\t}\n\n\t\t\t// create DOM fragment to append tiles in one batch\n\t\t\tvar fragment = document.createDocumentFragment();\n\n\t\t\tfor (i = 0; i < queue.length; i++) {\n\t\t\t\tthis._addTile(queue[i], fragment);\n\t\t\t}\n\n\t\t\tthis._level.el.appendChild(fragment);\n\t\t}\n\t},\n\n\t_isValidTile: function (coords) {\n\t\tvar crs = this._map.options.crs;\n\n\t\tif (!crs.infinite) {\n\t\t\t// don't load tile if it's out of bounds and not wrapped\n\t\t\tvar bounds = this._globalTileRange;\n\t\t\tif ((!crs.wrapLng && (coords.x < bounds.min.x || coords.x > bounds.max.x)) ||\n\t\t\t    (!crs.wrapLat && (coords.y < bounds.min.y || coords.y > bounds.max.y))) { return false; }\n\t\t}\n\n\t\tif (!this.options.bounds) { return true; }\n\n\t\t// don't load tile if it doesn't intersect the bounds in options\n\t\tvar tileBounds = this._tileCoordsToBounds(coords);\n\t\treturn L.latLngBounds(this.options.bounds).overlaps(tileBounds);\n\t},\n\n\t_keyToBounds: function (key) {\n\t\treturn this._tileCoordsToBounds(this._keyToTileCoords(key));\n\t},\n\n\t// converts tile coordinates to its geographical bounds\n\t_tileCoordsToBounds: function (coords) {\n\n\t\tvar map = this._map,\n\t\t    tileSize = this.getTileSize(),\n\n\t\t    nwPoint = coords.scaleBy(tileSize),\n\t\t    sePoint = nwPoint.add(tileSize),\n\n\t\t    nw = map.unproject(nwPoint, coords.z),\n\t\t    se = map.unproject(sePoint, coords.z);\n\n\t\tif (!this.options.noWrap) {\n\t\t\tnw = map.wrapLatLng(nw);\n\t\t\tse = map.wrapLatLng(se);\n\t\t}\n\n\t\treturn new L.LatLngBounds(nw, se);\n\t},\n\n\t// converts tile coordinates to key for the tile cache\n\t_tileCoordsToKey: function (coords) {\n\t\treturn coords.x + ':' + coords.y + ':' + coords.z;\n\t},\n\n\t// converts tile cache key to coordinates\n\t_keyToTileCoords: function (key) {\n\t\tvar k = key.split(':'),\n\t\t    coords = new L.Point(+k[0], +k[1]);\n\t\tcoords.z = +k[2];\n\t\treturn coords;\n\t},\n\n\t_removeTile: function (key) {\n\t\tvar tile = this._tiles[key];\n\t\tif (!tile) { return; }\n\n\t\tL.DomUtil.remove(tile.el);\n\n\t\tdelete this._tiles[key];\n\n\t\t// @event tileunload: TileEvent\n\t\t// Fired when a tile is removed (e.g. when a tile goes off the screen).\n\t\tthis.fire('tileunload', {\n\t\t\ttile: tile.el,\n\t\t\tcoords: this._keyToTileCoords(key)\n\t\t});\n\t},\n\n\t_initTile: function (tile) {\n\t\tL.DomUtil.addClass(tile, 'leaflet-tile');\n\n\t\tvar tileSize = this.getTileSize();\n\t\ttile.style.width = tileSize.x + 'px';\n\t\ttile.style.height = tileSize.y + 'px';\n\n\t\ttile.onselectstart = L.Util.falseFn;\n\t\ttile.onmousemove = L.Util.falseFn;\n\n\t\t// update opacity on tiles in IE7-8 because of filter inheritance problems\n\t\tif (L.Browser.ielt9 && this.options.opacity < 1) {\n\t\t\tL.DomUtil.setOpacity(tile, this.options.opacity);\n\t\t}\n\n\t\t// without this hack, tiles disappear after zoom on Chrome for Android\n\t\t// https://github.com/Leaflet/Leaflet/issues/2078\n\t\tif (L.Browser.android && !L.Browser.android23) {\n\t\t\ttile.style.WebkitBackfaceVisibility = 'hidden';\n\t\t}\n\t},\n\n\t_addTile: function (coords, container) {\n\t\tvar tilePos = this._getTilePos(coords),\n\t\t    key = this._tileCoordsToKey(coords);\n\n\t\tvar tile = this.createTile(this._wrapCoords(coords), L.bind(this._tileReady, this, coords));\n\n\t\tthis._initTile(tile);\n\n\t\t// if createTile is defined with a second argument (\"done\" callback),\n\t\t// we know that tile is async and will be ready later; otherwise\n\t\tif (this.createTile.length < 2) {\n\t\t\t// mark tile as ready, but delay one frame for opacity animation to happen\n\t\t\tL.Util.requestAnimFrame(L.bind(this._tileReady, this, coords, null, tile));\n\t\t}\n\n\t\tL.DomUtil.setPosition(tile, tilePos);\n\n\t\t// save tile in cache\n\t\tthis._tiles[key] = {\n\t\t\tel: tile,\n\t\t\tcoords: coords,\n\t\t\tcurrent: true\n\t\t};\n\n\t\tcontainer.appendChild(tile);\n\t\t// @event tileloadstart: TileEvent\n\t\t// Fired when a tile is requested and starts loading.\n\t\tthis.fire('tileloadstart', {\n\t\t\ttile: tile,\n\t\t\tcoords: coords\n\t\t});\n\t},\n\n\t_tileReady: function (coords, err, tile) {\n\t\tif (!this._map) { return; }\n\n\t\tif (err) {\n\t\t\t// @event tileerror: TileErrorEvent\n\t\t\t// Fired when there is an error loading a tile.\n\t\t\tthis.fire('tileerror', {\n\t\t\t\terror: err,\n\t\t\t\ttile: tile,\n\t\t\t\tcoords: coords\n\t\t\t});\n\t\t}\n\n\t\tvar key = this._tileCoordsToKey(coords);\n\n\t\ttile = this._tiles[key];\n\t\tif (!tile) { return; }\n\n\t\ttile.loaded = +new Date();\n\t\tif (this._map._fadeAnimated) {\n\t\t\tL.DomUtil.setOpacity(tile.el, 0);\n\t\t\tL.Util.cancelAnimFrame(this._fadeFrame);\n\t\t\tthis._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);\n\t\t} else {\n\t\t\ttile.active = true;\n\t\t\tthis._pruneTiles();\n\t\t}\n\n\t\tif (!err) {\n\t\t\tL.DomUtil.addClass(tile.el, 'leaflet-tile-loaded');\n\n\t\t\t// @event tileload: TileEvent\n\t\t\t// Fired when a tile loads.\n\t\t\tthis.fire('tileload', {\n\t\t\t\ttile: tile.el,\n\t\t\t\tcoords: coords\n\t\t\t});\n\t\t}\n\n\t\tif (this._noTilesToLoad()) {\n\t\t\tthis._loading = false;\n\t\t\t// @event load: Event\n\t\t\t// Fired when the grid layer loaded all visible tiles.\n\t\t\tthis.fire('load');\n\n\t\t\tif (L.Browser.ielt9 || !this._map._fadeAnimated) {\n\t\t\t\tL.Util.requestAnimFrame(this._pruneTiles, this);\n\t\t\t} else {\n\t\t\t\t// Wait a bit more than 0.2 secs (the duration of the tile fade-in)\n\t\t\t\t// to trigger a pruning.\n\t\t\t\tsetTimeout(L.bind(this._pruneTiles, this), 250);\n\t\t\t}\n\t\t}\n\t},\n\n\t_getTilePos: function (coords) {\n\t\treturn coords.scaleBy(this.getTileSize()).subtract(this._level.origin);\n\t},\n\n\t_wrapCoords: function (coords) {\n\t\tvar newCoords = new L.Point(\n\t\t\tthis._wrapX ? L.Util.wrapNum(coords.x, this._wrapX) : coords.x,\n\t\t\tthis._wrapY ? L.Util.wrapNum(coords.y, this._wrapY) : coords.y);\n\t\tnewCoords.z = coords.z;\n\t\treturn newCoords;\n\t},\n\n\t_pxBoundsToTileRange: function (bounds) {\n\t\tvar tileSize = this.getTileSize();\n\t\treturn new L.Bounds(\n\t\t\tbounds.min.unscaleBy(tileSize).floor(),\n\t\t\tbounds.max.unscaleBy(tileSize).ceil().subtract([1, 1]));\n\t},\n\n\t_noTilesToLoad: function () {\n\t\tfor (var key in this._tiles) {\n\t\t\tif (!this._tiles[key].loaded) { return false; }\n\t\t}\n\t\treturn true;\n\t}\n});\n\n// @factory L.gridLayer(options?: GridLayer options)\n// Creates a new instance of GridLayer with the supplied options.\nL.gridLayer = function (options) {\n\treturn new L.GridLayer(options);\n};\n\n\n\n/*\r\n * @class TileLayer\r\n * @inherits GridLayer\r\n * @aka L.TileLayer\r\n * Used to load and display tile layers on the map. Extends `GridLayer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png?{foo}', {foo: 'bar'}).addTo(map);\r\n * ```\r\n *\r\n * @section URL template\r\n * @example\r\n *\r\n * A string of the following form:\r\n *\r\n * ```\r\n * 'http://{s}.somedomain.com/blabla/{z}/{x}/{y}{r}.png'\r\n * ```\r\n *\r\n * `{s}` means one of the available subdomains (used sequentially to help with browser parallel requests per domain limitation; subdomain values are specified in options; `a`, `b` or `c` by default, can be omitted), `{z}` — zoom level, `{x}` and `{y}` — tile coordinates. `{r}` can be used to add @2x to the URL to load retina tiles.\r\n *\r\n * You can use custom keys in the template, which will be [evaluated](#util-template) from TileLayer options, like this:\r\n *\r\n * ```\r\n * L.tileLayer('http://{s}.somedomain.com/{foo}/{z}/{x}/{y}.png', {foo: 'bar'});\r\n * ```\r\n */\r\n\r\n\r\nL.TileLayer = L.GridLayer.extend({\r\n\r\n\t// @section\r\n\t// @aka TileLayer options\r\n\toptions: {\r\n\t\t// @option minZoom: Number = 0\r\n\t\t// Minimum zoom number.\r\n\t\tminZoom: 0,\r\n\r\n\t\t// @option maxZoom: Number = 18\r\n\t\t// Maximum zoom number.\r\n\t\tmaxZoom: 18,\r\n\r\n\t\t// @option maxNativeZoom: Number = null\r\n\t\t// Maximum zoom number the tile source has available. If it is specified,\r\n\t\t// the tiles on all zoom levels higher than `maxNativeZoom` will be loaded\r\n\t\t// from `maxNativeZoom` level and auto-scaled.\r\n\t\tmaxNativeZoom: null,\r\n\r\n\t\t// @option minNativeZoom: Number = null\r\n\t\t// Minimum zoom number the tile source has available. If it is specified,\r\n\t\t// the tiles on all zoom levels lower than `minNativeZoom` will be loaded\r\n\t\t// from `minNativeZoom` level and auto-scaled.\r\n\t\tminNativeZoom: null,\r\n\r\n\t\t// @option subdomains: String|String[] = 'abc'\r\n\t\t// Subdomains of the tile service. Can be passed in the form of one string (where each letter is a subdomain name) or an array of strings.\r\n\t\tsubdomains: 'abc',\r\n\r\n\t\t// @option errorTileUrl: String = ''\r\n\t\t// URL to the tile image to show in place of the tile that failed to load.\r\n\t\terrorTileUrl: '',\r\n\r\n\t\t// @option zoomOffset: Number = 0\r\n\t\t// The zoom number used in tile URLs will be offset with this value.\r\n\t\tzoomOffset: 0,\r\n\r\n\t\t// @option tms: Boolean = false\r\n\t\t// If `true`, inverses Y axis numbering for tiles (turn this on for [TMS](https://en.wikipedia.org/wiki/Tile_Map_Service) services).\r\n\t\ttms: false,\r\n\r\n\t\t// @option zoomReverse: Boolean = false\r\n\t\t// If set to true, the zoom number used in tile URLs will be reversed (`maxZoom - zoom` instead of `zoom`)\r\n\t\tzoomReverse: false,\r\n\r\n\t\t// @option detectRetina: Boolean = false\r\n\t\t// If `true` and user is on a retina display, it will request four tiles of half the specified size and a bigger zoom level in place of one to utilize the high resolution.\r\n\t\tdetectRetina: false,\r\n\r\n\t\t// @option crossOrigin: Boolean = false\r\n\t\t// If true, all tiles will have their crossOrigin attribute set to ''. This is needed if you want to access tile pixel data.\r\n\t\tcrossOrigin: false\r\n\t},\r\n\r\n\tinitialize: function (url, options) {\r\n\r\n\t\tthis._url = url;\r\n\r\n\t\toptions = L.setOptions(this, options);\r\n\r\n\t\t// detecting retina displays, adjusting tileSize and zoom levels\r\n\t\tif (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {\r\n\r\n\t\t\toptions.tileSize = Math.floor(options.tileSize / 2);\r\n\r\n\t\t\tif (!options.zoomReverse) {\r\n\t\t\t\toptions.zoomOffset++;\r\n\t\t\t\toptions.maxZoom--;\r\n\t\t\t} else {\r\n\t\t\t\toptions.zoomOffset--;\r\n\t\t\t\toptions.minZoom++;\r\n\t\t\t}\r\n\r\n\t\t\toptions.minZoom = Math.max(0, options.minZoom);\r\n\t\t}\r\n\r\n\t\tif (typeof options.subdomains === 'string') {\r\n\t\t\toptions.subdomains = options.subdomains.split('');\r\n\t\t}\r\n\r\n\t\t// for https://github.com/Leaflet/Leaflet/issues/137\r\n\t\tif (!L.Browser.android) {\r\n\t\t\tthis.on('tileunload', this._onTileRemove);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method setUrl(url: String, noRedraw?: Boolean): this\r\n\t// Updates the layer's URL template and redraws it (unless `noRedraw` is set to `true`).\r\n\tsetUrl: function (url, noRedraw) {\r\n\t\tthis._url = url;\r\n\r\n\t\tif (!noRedraw) {\r\n\t\t\tthis.redraw();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method createTile(coords: Object, done?: Function): HTMLElement\r\n\t// Called only internally, overrides GridLayer's [`createTile()`](#gridlayer-createtile)\r\n\t// to return an `<img>` HTML element with the appropiate image URL given `coords`. The `done`\r\n\t// callback is called when the tile has been loaded.\r\n\tcreateTile: function (coords, done) {\r\n\t\tvar tile = document.createElement('img');\r\n\r\n\t\tL.DomEvent.on(tile, 'load', L.bind(this._tileOnLoad, this, done, tile));\r\n\t\tL.DomEvent.on(tile, 'error', L.bind(this._tileOnError, this, done, tile));\r\n\r\n\t\tif (this.options.crossOrigin) {\r\n\t\t\ttile.crossOrigin = '';\r\n\t\t}\r\n\r\n\t\t/*\r\n\t\t Alt tag is set to empty string to keep screen readers from reading URL and for compliance reasons\r\n\t\t http://www.w3.org/TR/WCAG20-TECHS/H67\r\n\t\t*/\r\n\t\ttile.alt = '';\r\n\r\n\t\t/*\r\n\t\t Set role=\"presentation\" to force screen readers to ignore this\r\n\t\t https://www.w3.org/TR/wai-aria/roles#textalternativecomputation\r\n\t\t*/\r\n\t\ttile.setAttribute('role', 'presentation');\r\n\r\n\t\ttile.src = this.getTileUrl(coords);\r\n\r\n\t\treturn tile;\r\n\t},\r\n\r\n\t// @section Extension methods\r\n\t// @uninheritable\r\n\t// Layers extending `TileLayer` might reimplement the following method.\r\n\t// @method getTileUrl(coords: Object): String\r\n\t// Called only internally, returns the URL for a tile given its coordinates.\r\n\t// Classes extending `TileLayer` can override this function to provide custom tile URL naming schemes.\r\n\tgetTileUrl: function (coords) {\r\n\t\tvar data = {\r\n\t\t\tr: L.Browser.retina ? '@2x' : '',\r\n\t\t\ts: this._getSubdomain(coords),\r\n\t\t\tx: coords.x,\r\n\t\t\ty: coords.y,\r\n\t\t\tz: this._getZoomForUrl()\r\n\t\t};\r\n\t\tif (this._map && !this._map.options.crs.infinite) {\r\n\t\t\tvar invertedY = this._globalTileRange.max.y - coords.y;\r\n\t\t\tif (this.options.tms) {\r\n\t\t\t\tdata['y'] = invertedY;\r\n\t\t\t}\r\n\t\t\tdata['-y'] = invertedY;\r\n\t\t}\r\n\r\n\t\treturn L.Util.template(this._url, L.extend(data, this.options));\r\n\t},\r\n\r\n\t_tileOnLoad: function (done, tile) {\r\n\t\t// For https://github.com/Leaflet/Leaflet/issues/3332\r\n\t\tif (L.Browser.ielt9) {\r\n\t\t\tsetTimeout(L.bind(done, this, null, tile), 0);\r\n\t\t} else {\r\n\t\t\tdone(null, tile);\r\n\t\t}\r\n\t},\r\n\r\n\t_tileOnError: function (done, tile, e) {\r\n\t\tvar errorUrl = this.options.errorTileUrl;\r\n\t\tif (errorUrl) {\r\n\t\t\ttile.src = errorUrl;\r\n\t\t}\r\n\t\tdone(e, tile);\r\n\t},\r\n\r\n\tgetTileSize: function () {\r\n\t\tvar map = this._map,\r\n\t\ttileSize = L.GridLayer.prototype.getTileSize.call(this),\r\n\t\tzoom = this._tileZoom + this.options.zoomOffset,\r\n\t\tminNativeZoom = this.options.minNativeZoom,\r\n\t\tmaxNativeZoom = this.options.maxNativeZoom;\r\n\r\n\t\t// decrease tile size when scaling below minNativeZoom\r\n\t\tif (minNativeZoom !== null && zoom < minNativeZoom) {\r\n\t\t\treturn tileSize.divideBy(map.getZoomScale(minNativeZoom, zoom)).round();\r\n\t\t}\r\n\r\n\t\t// increase tile size when scaling above maxNativeZoom\r\n\t\tif (maxNativeZoom !== null && zoom > maxNativeZoom) {\r\n\t\t\treturn tileSize.divideBy(map.getZoomScale(maxNativeZoom, zoom)).round();\r\n\t\t}\r\n\r\n\t\treturn tileSize;\r\n\t},\r\n\r\n\t_onTileRemove: function (e) {\r\n\t\te.tile.onload = null;\r\n\t},\r\n\r\n\t_getZoomForUrl: function () {\r\n\t\tvar zoom = this._tileZoom,\r\n\t\tmaxZoom = this.options.maxZoom,\r\n\t\tzoomReverse = this.options.zoomReverse,\r\n\t\tzoomOffset = this.options.zoomOffset,\r\n\t\tminNativeZoom = this.options.minNativeZoom,\r\n\t\tmaxNativeZoom = this.options.maxNativeZoom;\r\n\r\n\t\tif (zoomReverse) {\r\n\t\t\tzoom = maxZoom - zoom;\r\n\t\t}\r\n\r\n\t\tzoom += zoomOffset;\r\n\r\n\t\tif (minNativeZoom !== null && zoom < minNativeZoom) {\r\n\t\t\treturn minNativeZoom;\r\n\t\t}\r\n\r\n\t\tif (maxNativeZoom !== null && zoom > maxNativeZoom) {\r\n\t\t\treturn maxNativeZoom;\r\n\t\t}\r\n\r\n\t\treturn zoom;\r\n\t},\r\n\r\n\t_getSubdomain: function (tilePoint) {\r\n\t\tvar index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;\r\n\t\treturn this.options.subdomains[index];\r\n\t},\r\n\r\n\t// stops loading all tiles in the background layer\r\n\t_abortLoading: function () {\r\n\t\tvar i, tile;\r\n\t\tfor (i in this._tiles) {\r\n\t\t\tif (this._tiles[i].coords.z !== this._tileZoom) {\r\n\t\t\t\ttile = this._tiles[i].el;\r\n\r\n\t\t\t\ttile.onload = L.Util.falseFn;\r\n\t\t\t\ttile.onerror = L.Util.falseFn;\r\n\r\n\t\t\t\tif (!tile.complete) {\r\n\t\t\t\t\ttile.src = L.Util.emptyImageUrl;\r\n\t\t\t\t\tL.DomUtil.remove(tile);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n});\r\n\r\n\r\n// @factory L.tilelayer(urlTemplate: String, options?: TileLayer options)\r\n// Instantiates a tile layer object given a `URL template` and optionally an options object.\r\n\r\nL.tileLayer = function (url, options) {\r\n\treturn new L.TileLayer(url, options);\r\n};\r\n\n\n\n/*\r\n * @class TileLayer.WMS\r\n * @inherits TileLayer\r\n * @aka L.TileLayer.WMS\r\n * Used to display [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services as tile layers on the map. Extends `TileLayer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var nexrad = L.tileLayer.wms(\"http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi\", {\r\n * \tlayers: 'nexrad-n0r-900913',\r\n * \tformat: 'image/png',\r\n * \ttransparent: true,\r\n * \tattribution: \"Weather data © 2012 IEM Nexrad\"\r\n * });\r\n * ```\r\n */\r\n\r\nL.TileLayer.WMS = L.TileLayer.extend({\r\n\r\n\t// @section\r\n\t// @aka TileLayer.WMS options\r\n\t// If any custom options not documented here are used, they will be sent to the\r\n\t// WMS server as extra parameters in each request URL. This can be useful for\r\n\t// [non-standard vendor WMS parameters](http://docs.geoserver.org/stable/en/user/services/wms/vendor.html).\r\n\tdefaultWmsParams: {\r\n\t\tservice: 'WMS',\r\n\t\trequest: 'GetMap',\r\n\r\n\t\t// @option layers: String = ''\r\n\t\t// **(required)** Comma-separated list of WMS layers to show.\r\n\t\tlayers: '',\r\n\r\n\t\t// @option styles: String = ''\r\n\t\t// Comma-separated list of WMS styles.\r\n\t\tstyles: '',\r\n\r\n\t\t// @option format: String = 'image/jpeg'\r\n\t\t// WMS image format (use `'image/png'` for layers with transparency).\r\n\t\tformat: 'image/jpeg',\r\n\r\n\t\t// @option transparent: Boolean = false\r\n\t\t// If `true`, the WMS service will return images with transparency.\r\n\t\ttransparent: false,\r\n\r\n\t\t// @option version: String = '1.1.1'\r\n\t\t// Version of the WMS service to use\r\n\t\tversion: '1.1.1'\r\n\t},\r\n\r\n\toptions: {\r\n\t\t// @option crs: CRS = null\r\n\t\t// Coordinate Reference System to use for the WMS requests, defaults to\r\n\t\t// map CRS. Don't change this if you're not sure what it means.\r\n\t\tcrs: null,\r\n\r\n\t\t// @option uppercase: Boolean = false\r\n\t\t// If `true`, WMS request parameter keys will be uppercase.\r\n\t\tuppercase: false\r\n\t},\r\n\r\n\tinitialize: function (url, options) {\r\n\r\n\t\tthis._url = url;\r\n\r\n\t\tvar wmsParams = L.extend({}, this.defaultWmsParams);\r\n\r\n\t\t// all keys that are not TileLayer options go to WMS params\r\n\t\tfor (var i in options) {\r\n\t\t\tif (!(i in this.options)) {\r\n\t\t\t\twmsParams[i] = options[i];\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\toptions = L.setOptions(this, options);\r\n\r\n\t\twmsParams.width = wmsParams.height = options.tileSize * (options.detectRetina && L.Browser.retina ? 2 : 1);\r\n\r\n\t\tthis.wmsParams = wmsParams;\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\r\n\t\tthis._crs = this.options.crs || map.options.crs;\r\n\t\tthis._wmsVersion = parseFloat(this.wmsParams.version);\r\n\r\n\t\tvar projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';\r\n\t\tthis.wmsParams[projectionKey] = this._crs.code;\r\n\r\n\t\tL.TileLayer.prototype.onAdd.call(this, map);\r\n\t},\r\n\r\n\tgetTileUrl: function (coords) {\r\n\r\n\t\tvar tileBounds = this._tileCoordsToBounds(coords),\r\n\t\t    nw = this._crs.project(tileBounds.getNorthWest()),\r\n\t\t    se = this._crs.project(tileBounds.getSouthEast()),\r\n\r\n\t\t    bbox = (this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ?\r\n\t\t\t    [se.y, nw.x, nw.y, se.x] :\r\n\t\t\t    [nw.x, se.y, se.x, nw.y]).join(','),\r\n\r\n\t\t    url = L.TileLayer.prototype.getTileUrl.call(this, coords);\r\n\r\n\t\treturn url +\r\n\t\t\tL.Util.getParamString(this.wmsParams, url, this.options.uppercase) +\r\n\t\t\t(this.options.uppercase ? '&BBOX=' : '&bbox=') + bbox;\r\n\t},\r\n\r\n\t// @method setParams(params: Object, noRedraw?: Boolean): this\r\n\t// Merges an object with the new parameters and re-requests tiles on the current screen (unless `noRedraw` was set to true).\r\n\tsetParams: function (params, noRedraw) {\r\n\r\n\t\tL.extend(this.wmsParams, params);\r\n\r\n\t\tif (!noRedraw) {\r\n\t\t\tthis.redraw();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t}\r\n});\r\n\r\n\r\n// @factory L.tileLayer.wms(baseUrl: String, options: TileLayer.WMS options)\r\n// Instantiates a WMS tile layer object given a base URL of the WMS service and a WMS parameters/options object.\r\nL.tileLayer.wms = function (url, options) {\r\n\treturn new L.TileLayer.WMS(url, options);\r\n};\r\n\n\n\n/*\r\n * @class ImageOverlay\r\n * @aka L.ImageOverlay\r\n * @inherits Interactive layer\r\n *\r\n * Used to load and display a single image over specific bounds of the map. Extends `Layer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var imageUrl = 'http://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg',\r\n * \timageBounds = [[40.712216, -74.22655], [40.773941, -74.12544]];\r\n * L.imageOverlay(imageUrl, imageBounds).addTo(map);\r\n * ```\r\n */\r\n\r\nL.ImageOverlay = L.Layer.extend({\r\n\r\n\t// @section\r\n\t// @aka ImageOverlay options\r\n\toptions: {\r\n\t\t// @option opacity: Number = 1.0\r\n\t\t// The opacity of the image overlay.\r\n\t\topacity: 1,\r\n\r\n\t\t// @option alt: String = ''\r\n\t\t// Text for the `alt` attribute of the image (useful for accessibility).\r\n\t\talt: '',\r\n\r\n\t\t// @option interactive: Boolean = false\r\n\t\t// If `true`, the image overlay will emit [mouse events](#interactive-layer) when clicked or hovered.\r\n\t\tinteractive: false,\r\n\r\n\t\t// @option crossOrigin: Boolean = false\r\n\t\t// If true, the image will have its crossOrigin attribute set to ''. This is needed if you want to access image pixel data.\r\n\t\tcrossOrigin: false\r\n\t},\r\n\r\n\tinitialize: function (url, bounds, options) { // (String, LatLngBounds, Object)\r\n\t\tthis._url = url;\r\n\t\tthis._bounds = L.latLngBounds(bounds);\r\n\r\n\t\tL.setOptions(this, options);\r\n\t},\r\n\r\n\tonAdd: function () {\r\n\t\tif (!this._image) {\r\n\t\t\tthis._initImage();\r\n\r\n\t\t\tif (this.options.opacity < 1) {\r\n\t\t\t\tthis._updateOpacity();\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (this.options.interactive) {\r\n\t\t\tL.DomUtil.addClass(this._image, 'leaflet-interactive');\r\n\t\t\tthis.addInteractiveTarget(this._image);\r\n\t\t}\r\n\r\n\t\tthis.getPane().appendChild(this._image);\r\n\t\tthis._reset();\r\n\t},\r\n\r\n\tonRemove: function () {\r\n\t\tL.DomUtil.remove(this._image);\r\n\t\tif (this.options.interactive) {\r\n\t\t\tthis.removeInteractiveTarget(this._image);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method setOpacity(opacity: Number): this\r\n\t// Sets the opacity of the overlay.\r\n\tsetOpacity: function (opacity) {\r\n\t\tthis.options.opacity = opacity;\r\n\r\n\t\tif (this._image) {\r\n\t\t\tthis._updateOpacity();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\tsetStyle: function (styleOpts) {\r\n\t\tif (styleOpts.opacity) {\r\n\t\t\tthis.setOpacity(styleOpts.opacity);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method bringToFront(): this\r\n\t// Brings the layer to the top of all overlays.\r\n\tbringToFront: function () {\r\n\t\tif (this._map) {\r\n\t\t\tL.DomUtil.toFront(this._image);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method bringToBack(): this\r\n\t// Brings the layer to the bottom of all overlays.\r\n\tbringToBack: function () {\r\n\t\tif (this._map) {\r\n\t\t\tL.DomUtil.toBack(this._image);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setUrl(url: String): this\r\n\t// Changes the URL of the image.\r\n\tsetUrl: function (url) {\r\n\t\tthis._url = url;\r\n\r\n\t\tif (this._image) {\r\n\t\t\tthis._image.src = url;\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\tsetBounds: function (bounds) {\r\n\t\tthis._bounds = bounds;\r\n\r\n\t\tif (this._map) {\r\n\t\t\tthis._reset();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\tgetEvents: function () {\r\n\t\tvar events = {\r\n\t\t\tzoom: this._reset,\r\n\t\t\tviewreset: this._reset\r\n\t\t};\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tevents.zoomanim = this._animateZoom;\r\n\t\t}\r\n\r\n\t\treturn events;\r\n\t},\r\n\r\n\tgetBounds: function () {\r\n\t\treturn this._bounds;\r\n\t},\r\n\r\n\tgetElement: function () {\r\n\t\treturn this._image;\r\n\t},\r\n\r\n\t_initImage: function () {\r\n\t\tvar img = this._image = L.DomUtil.create('img',\r\n\t\t\t\t'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : ''));\r\n\r\n\t\timg.onselectstart = L.Util.falseFn;\r\n\t\timg.onmousemove = L.Util.falseFn;\r\n\r\n\t\timg.onload = L.bind(this.fire, this, 'load');\r\n\r\n\t\tif (this.options.crossOrigin) {\r\n\t\t\timg.crossOrigin = '';\r\n\t\t}\r\n\r\n\t\timg.src = this._url;\r\n\t\timg.alt = this.options.alt;\r\n\t},\r\n\r\n\t_animateZoom: function (e) {\r\n\t\tvar scale = this._map.getZoomScale(e.zoom),\r\n\t\t    offset = this._map._latLngBoundsToNewLayerBounds(this._bounds, e.zoom, e.center).min;\r\n\r\n\t\tL.DomUtil.setTransform(this._image, offset, scale);\r\n\t},\r\n\r\n\t_reset: function () {\r\n\t\tvar image = this._image,\r\n\t\t    bounds = new L.Bounds(\r\n\t\t        this._map.latLngToLayerPoint(this._bounds.getNorthWest()),\r\n\t\t        this._map.latLngToLayerPoint(this._bounds.getSouthEast())),\r\n\t\t    size = bounds.getSize();\r\n\r\n\t\tL.DomUtil.setPosition(image, bounds.min);\r\n\r\n\t\timage.style.width  = size.x + 'px';\r\n\t\timage.style.height = size.y + 'px';\r\n\t},\r\n\r\n\t_updateOpacity: function () {\r\n\t\tL.DomUtil.setOpacity(this._image, this.options.opacity);\r\n\t}\r\n});\r\n\r\n// @factory L.imageOverlay(imageUrl: String, bounds: LatLngBounds, options?: ImageOverlay options)\r\n// Instantiates an image overlay object given the URL of the image and the\r\n// geographical bounds it is tied to.\r\nL.imageOverlay = function (url, bounds, options) {\r\n\treturn new L.ImageOverlay(url, bounds, options);\r\n};\r\n\n\n\n/*\r\n * @class Icon\r\n * @aka L.Icon\r\n * @inherits Layer\r\n *\r\n * Represents an icon to provide when creating a marker.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var myIcon = L.icon({\r\n *     iconUrl: 'my-icon.png',\r\n *     iconRetinaUrl: 'my-icon@2x.png',\r\n *     iconSize: [38, 95],\r\n *     iconAnchor: [22, 94],\r\n *     popupAnchor: [-3, -76],\r\n *     shadowUrl: 'my-icon-shadow.png',\r\n *     shadowRetinaUrl: 'my-icon-shadow@2x.png',\r\n *     shadowSize: [68, 95],\r\n *     shadowAnchor: [22, 94]\r\n * });\r\n *\r\n * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);\r\n * ```\r\n *\r\n * `L.Icon.Default` extends `L.Icon` and is the blue icon Leaflet uses for markers by default.\r\n *\r\n */\r\n\r\nL.Icon = L.Class.extend({\r\n\r\n\t/* @section\r\n\t * @aka Icon options\r\n\t *\r\n\t * @option iconUrl: String = null\r\n\t * **(required)** The URL to the icon image (absolute or relative to your script path).\r\n\t *\r\n\t * @option iconRetinaUrl: String = null\r\n\t * The URL to a retina sized version of the icon image (absolute or relative to your\r\n\t * script path). Used for Retina screen devices.\r\n\t *\r\n\t * @option iconSize: Point = null\r\n\t * Size of the icon image in pixels.\r\n\t *\r\n\t * @option iconAnchor: Point = null\r\n\t * The coordinates of the \"tip\" of the icon (relative to its top left corner). The icon\r\n\t * will be aligned so that this point is at the marker's geographical location. Centered\r\n\t * by default if size is specified, also can be set in CSS with negative margins.\r\n\t *\r\n\t * @option popupAnchor: Point = null\r\n\t * The coordinates of the point from which popups will \"open\", relative to the icon anchor.\r\n\t *\r\n\t * @option shadowUrl: String = null\r\n\t * The URL to the icon shadow image. If not specified, no shadow image will be created.\r\n\t *\r\n\t * @option shadowRetinaUrl: String = null\r\n\t *\r\n\t * @option shadowSize: Point = null\r\n\t * Size of the shadow image in pixels.\r\n\t *\r\n\t * @option shadowAnchor: Point = null\r\n\t * The coordinates of the \"tip\" of the shadow (relative to its top left corner) (the same\r\n\t * as iconAnchor if not specified).\r\n\t *\r\n\t * @option className: String = ''\r\n\t * A custom class name to assign to both icon and shadow images. Empty by default.\r\n\t */\r\n\r\n\tinitialize: function (options) {\r\n\t\tL.setOptions(this, options);\r\n\t},\r\n\r\n\t// @method createIcon(oldIcon?: HTMLElement): HTMLElement\r\n\t// Called internally when the icon has to be shown, returns a `<img>` HTML element\r\n\t// styled according to the options.\r\n\tcreateIcon: function (oldIcon) {\r\n\t\treturn this._createIcon('icon', oldIcon);\r\n\t},\r\n\r\n\t// @method createShadow(oldIcon?: HTMLElement): HTMLElement\r\n\t// As `createIcon`, but for the shadow beneath it.\r\n\tcreateShadow: function (oldIcon) {\r\n\t\treturn this._createIcon('shadow', oldIcon);\r\n\t},\r\n\r\n\t_createIcon: function (name, oldIcon) {\r\n\t\tvar src = this._getIconUrl(name);\r\n\r\n\t\tif (!src) {\r\n\t\t\tif (name === 'icon') {\r\n\t\t\t\tthrow new Error('iconUrl not set in Icon options (see the docs).');\r\n\t\t\t}\r\n\t\t\treturn null;\r\n\t\t}\r\n\r\n\t\tvar img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null);\r\n\t\tthis._setIconStyles(img, name);\r\n\r\n\t\treturn img;\r\n\t},\r\n\r\n\t_setIconStyles: function (img, name) {\r\n\t\tvar options = this.options;\r\n\t\tvar sizeOption = options[name + 'Size'];\r\n\r\n\t\tif (typeof sizeOption === 'number') {\r\n\t\t\tsizeOption = [sizeOption, sizeOption];\r\n\t\t}\r\n\r\n\t\tvar size = L.point(sizeOption),\r\n\t\t    anchor = L.point(name === 'shadow' && options.shadowAnchor || options.iconAnchor ||\r\n\t\t            size && size.divideBy(2, true));\r\n\r\n\t\timg.className = 'leaflet-marker-' + name + ' ' + (options.className || '');\r\n\r\n\t\tif (anchor) {\r\n\t\t\timg.style.marginLeft = (-anchor.x) + 'px';\r\n\t\t\timg.style.marginTop  = (-anchor.y) + 'px';\r\n\t\t}\r\n\r\n\t\tif (size) {\r\n\t\t\timg.style.width  = size.x + 'px';\r\n\t\t\timg.style.height = size.y + 'px';\r\n\t\t}\r\n\t},\r\n\r\n\t_createImg: function (src, el) {\r\n\t\tel = el || document.createElement('img');\r\n\t\tel.src = src;\r\n\t\treturn el;\r\n\t},\r\n\r\n\t_getIconUrl: function (name) {\r\n\t\treturn L.Browser.retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url'];\r\n\t}\r\n});\r\n\r\n\r\n// @factory L.icon(options: Icon options)\r\n// Creates an icon instance with the given options.\r\nL.icon = function (options) {\r\n\treturn new L.Icon(options);\r\n};\r\n\n\n\n/*\n * @miniclass Icon.Default (Icon)\n * @aka L.Icon.Default\n * @section\n *\n * A trivial subclass of `Icon`, represents the icon to use in `Marker`s when\n * no icon is specified. Points to the blue marker image distributed with Leaflet\n * releases.\n *\n * In order to customize the default icon, just change the properties of `L.Icon.Default.prototype.options`\n * (which is a set of `Icon options`).\n *\n * If you want to _completely_ replace the default icon, override the\n * `L.Marker.prototype.options.icon` with your own icon instead.\n */\n\nL.Icon.Default = L.Icon.extend({\n\n\toptions: {\n\t\ticonUrl:       'marker-icon.png',\n\t\ticonRetinaUrl: 'marker-icon-2x.png',\n\t\tshadowUrl:     'marker-shadow.png',\n\t\ticonSize:    [25, 41],\n\t\ticonAnchor:  [12, 41],\n\t\tpopupAnchor: [1, -34],\n\t\ttooltipAnchor: [16, -28],\n\t\tshadowSize:  [41, 41]\n\t},\n\n\t_getIconUrl: function (name) {\n\t\tif (!L.Icon.Default.imagePath) {\t// Deprecated, backwards-compatibility only\n\t\t\tL.Icon.Default.imagePath = this._detectIconPath();\n\t\t}\n\n\t\t// @option imagePath: String\n\t\t// `L.Icon.Default` will try to auto-detect the absolute location of the\n\t\t// blue icon images. If you are placing these images in a non-standard\n\t\t// way, set this option to point to the right absolute path.\n\t\treturn (this.options.imagePath || L.Icon.Default.imagePath) + L.Icon.prototype._getIconUrl.call(this, name);\n\t},\n\n\t_detectIconPath: function () {\n\t\tvar el = L.DomUtil.create('div',  'leaflet-default-icon-path', document.body);\n\t\tvar path = L.DomUtil.getStyle(el, 'background-image') ||\n\t\t           L.DomUtil.getStyle(el, 'backgroundImage');\t// IE8\n\n\t\tdocument.body.removeChild(el);\n\n\t\treturn path.indexOf('url') === 0 ?\n\t\t\tpath.replace(/^url\\([\\\"\\']?/, '').replace(/marker-icon\\.png[\\\"\\']?\\)$/, '') : '';\n\t}\n});\n\n\n\n/*\r\n * @class Marker\r\n * @inherits Interactive layer\r\n * @aka L.Marker\r\n * L.Marker is used to display clickable/draggable icons on the map. Extends `Layer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.marker([50.5, 30.5]).addTo(map);\r\n * ```\r\n */\r\n\r\nL.Marker = L.Layer.extend({\r\n\r\n\t// @section\r\n\t// @aka Marker options\r\n\toptions: {\r\n\t\t// @option icon: Icon = *\r\n\t\t// Icon class to use for rendering the marker. See [Icon documentation](#L.Icon) for details on how to customize the marker icon. If not specified, a new `L.Icon.Default` is used.\r\n\t\ticon: new L.Icon.Default(),\r\n\r\n\t\t// Option inherited from \"Interactive layer\" abstract class\r\n\t\tinteractive: true,\r\n\r\n\t\t// @option draggable: Boolean = false\r\n\t\t// Whether the marker is draggable with mouse/touch or not.\r\n\t\tdraggable: false,\r\n\r\n\t\t// @option keyboard: Boolean = true\r\n\t\t// Whether the marker can be tabbed to with a keyboard and clicked by pressing enter.\r\n\t\tkeyboard: true,\r\n\r\n\t\t// @option title: String = ''\r\n\t\t// Text for the browser tooltip that appear on marker hover (no tooltip by default).\r\n\t\ttitle: '',\r\n\r\n\t\t// @option alt: String = ''\r\n\t\t// Text for the `alt` attribute of the icon image (useful for accessibility).\r\n\t\talt: '',\r\n\r\n\t\t// @option zIndexOffset: Number = 0\r\n\t\t// By default, marker images zIndex is set automatically based on its latitude. Use this option if you want to put the marker on top of all others (or below), specifying a high value like `1000` (or high negative value, respectively).\r\n\t\tzIndexOffset: 0,\r\n\r\n\t\t// @option opacity: Number = 1.0\r\n\t\t// The opacity of the marker.\r\n\t\topacity: 1,\r\n\r\n\t\t// @option riseOnHover: Boolean = false\r\n\t\t// If `true`, the marker will get on top of others when you hover the mouse over it.\r\n\t\triseOnHover: false,\r\n\r\n\t\t// @option riseOffset: Number = 250\r\n\t\t// The z-index offset used for the `riseOnHover` feature.\r\n\t\triseOffset: 250,\r\n\r\n\t\t// @option pane: String = 'markerPane'\r\n\t\t// `Map pane` where the markers icon will be added.\r\n\t\tpane: 'markerPane',\r\n\r\n\t\t// FIXME: shadowPane is no longer a valid option\r\n\t\tnonBubblingEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu']\r\n\t},\r\n\r\n\t/* @section\r\n\t *\r\n\t * In addition to [shared layer methods](#Layer) like `addTo()` and `remove()` and [popup methods](#Popup) like bindPopup() you can also use the following methods:\r\n\t */\r\n\r\n\tinitialize: function (latlng, options) {\r\n\t\tL.setOptions(this, options);\r\n\t\tthis._latlng = L.latLng(latlng);\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tthis._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation;\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tmap.on('zoomanim', this._animateZoom, this);\r\n\t\t}\r\n\r\n\t\tthis._initIcon();\r\n\t\tthis.update();\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tif (this.dragging && this.dragging.enabled()) {\r\n\t\t\tthis.options.draggable = true;\r\n\t\t\tthis.dragging.removeHooks();\r\n\t\t}\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tmap.off('zoomanim', this._animateZoom, this);\r\n\t\t}\r\n\r\n\t\tthis._removeIcon();\r\n\t\tthis._removeShadow();\r\n\t},\r\n\r\n\tgetEvents: function () {\r\n\t\treturn {\r\n\t\t\tzoom: this.update,\r\n\t\t\tviewreset: this.update\r\n\t\t};\r\n\t},\r\n\r\n\t// @method getLatLng: LatLng\r\n\t// Returns the current geographical position of the marker.\r\n\tgetLatLng: function () {\r\n\t\treturn this._latlng;\r\n\t},\r\n\r\n\t// @method setLatLng(latlng: LatLng): this\r\n\t// Changes the marker position to the given point.\r\n\tsetLatLng: function (latlng) {\r\n\t\tvar oldLatLng = this._latlng;\r\n\t\tthis._latlng = L.latLng(latlng);\r\n\t\tthis.update();\r\n\r\n\t\t// @event move: Event\r\n\t\t// Fired when the marker is moved via [`setLatLng`](#marker-setlatlng) or by [dragging](#marker-dragging). Old and new coordinates are included in event arguments as `oldLatLng`, `latlng`.\r\n\t\treturn this.fire('move', {oldLatLng: oldLatLng, latlng: this._latlng});\r\n\t},\r\n\r\n\t// @method setZIndexOffset(offset: Number): this\r\n\t// Changes the [zIndex offset](#marker-zindexoffset) of the marker.\r\n\tsetZIndexOffset: function (offset) {\r\n\t\tthis.options.zIndexOffset = offset;\r\n\t\treturn this.update();\r\n\t},\r\n\r\n\t// @method setIcon(icon: Icon): this\r\n\t// Changes the marker icon.\r\n\tsetIcon: function (icon) {\r\n\r\n\t\tthis.options.icon = icon;\r\n\r\n\t\tif (this._map) {\r\n\t\t\tthis._initIcon();\r\n\t\t\tthis.update();\r\n\t\t}\r\n\r\n\t\tif (this._popup) {\r\n\t\t\tthis.bindPopup(this._popup, this._popup.options);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\tgetElement: function () {\r\n\t\treturn this._icon;\r\n\t},\r\n\r\n\tupdate: function () {\r\n\r\n\t\tif (this._icon) {\r\n\t\t\tvar pos = this._map.latLngToLayerPoint(this._latlng).round();\r\n\t\t\tthis._setPos(pos);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_initIcon: function () {\r\n\t\tvar options = this.options,\r\n\t\t    classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');\r\n\r\n\t\tvar icon = options.icon.createIcon(this._icon),\r\n\t\t    addIcon = false;\r\n\r\n\t\t// if we're not reusing the icon, remove the old one and init new one\r\n\t\tif (icon !== this._icon) {\r\n\t\t\tif (this._icon) {\r\n\t\t\t\tthis._removeIcon();\r\n\t\t\t}\r\n\t\t\taddIcon = true;\r\n\r\n\t\t\tif (options.title) {\r\n\t\t\t\ticon.title = options.title;\r\n\t\t\t}\r\n\t\t\tif (options.alt) {\r\n\t\t\t\ticon.alt = options.alt;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tL.DomUtil.addClass(icon, classToAdd);\r\n\r\n\t\tif (options.keyboard) {\r\n\t\t\ticon.tabIndex = '0';\r\n\t\t}\r\n\r\n\t\tthis._icon = icon;\r\n\r\n\t\tif (options.riseOnHover) {\r\n\t\t\tthis.on({\r\n\t\t\t\tmouseover: this._bringToFront,\r\n\t\t\t\tmouseout: this._resetZIndex\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\tvar newShadow = options.icon.createShadow(this._shadow),\r\n\t\t    addShadow = false;\r\n\r\n\t\tif (newShadow !== this._shadow) {\r\n\t\t\tthis._removeShadow();\r\n\t\t\taddShadow = true;\r\n\t\t}\r\n\r\n\t\tif (newShadow) {\r\n\t\t\tL.DomUtil.addClass(newShadow, classToAdd);\r\n\t\t}\r\n\t\tthis._shadow = newShadow;\r\n\r\n\r\n\t\tif (options.opacity < 1) {\r\n\t\t\tthis._updateOpacity();\r\n\t\t}\r\n\r\n\r\n\t\tif (addIcon) {\r\n\t\t\tthis.getPane().appendChild(this._icon);\r\n\t\t}\r\n\t\tthis._initInteraction();\r\n\t\tif (newShadow && addShadow) {\r\n\t\t\tthis.getPane('shadowPane').appendChild(this._shadow);\r\n\t\t}\r\n\t},\r\n\r\n\t_removeIcon: function () {\r\n\t\tif (this.options.riseOnHover) {\r\n\t\t\tthis.off({\r\n\t\t\t\tmouseover: this._bringToFront,\r\n\t\t\t\tmouseout: this._resetZIndex\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\tL.DomUtil.remove(this._icon);\r\n\t\tthis.removeInteractiveTarget(this._icon);\r\n\r\n\t\tthis._icon = null;\r\n\t},\r\n\r\n\t_removeShadow: function () {\r\n\t\tif (this._shadow) {\r\n\t\t\tL.DomUtil.remove(this._shadow);\r\n\t\t}\r\n\t\tthis._shadow = null;\r\n\t},\r\n\r\n\t_setPos: function (pos) {\r\n\t\tL.DomUtil.setPosition(this._icon, pos);\r\n\r\n\t\tif (this._shadow) {\r\n\t\t\tL.DomUtil.setPosition(this._shadow, pos);\r\n\t\t}\r\n\r\n\t\tthis._zIndex = pos.y + this.options.zIndexOffset;\r\n\r\n\t\tthis._resetZIndex();\r\n\t},\r\n\r\n\t_updateZIndex: function (offset) {\r\n\t\tthis._icon.style.zIndex = this._zIndex + offset;\r\n\t},\r\n\r\n\t_animateZoom: function (opt) {\r\n\t\tvar pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();\r\n\r\n\t\tthis._setPos(pos);\r\n\t},\r\n\r\n\t_initInteraction: function () {\r\n\r\n\t\tif (!this.options.interactive) { return; }\r\n\r\n\t\tL.DomUtil.addClass(this._icon, 'leaflet-interactive');\r\n\r\n\t\tthis.addInteractiveTarget(this._icon);\r\n\r\n\t\tif (L.Handler.MarkerDrag) {\r\n\t\t\tvar draggable = this.options.draggable;\r\n\t\t\tif (this.dragging) {\r\n\t\t\t\tdraggable = this.dragging.enabled();\r\n\t\t\t\tthis.dragging.disable();\r\n\t\t\t}\r\n\r\n\t\t\tthis.dragging = new L.Handler.MarkerDrag(this);\r\n\r\n\t\t\tif (draggable) {\r\n\t\t\t\tthis.dragging.enable();\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t// @method setOpacity(opacity: Number): this\r\n\t// Changes the opacity of the marker.\r\n\tsetOpacity: function (opacity) {\r\n\t\tthis.options.opacity = opacity;\r\n\t\tif (this._map) {\r\n\t\t\tthis._updateOpacity();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_updateOpacity: function () {\r\n\t\tvar opacity = this.options.opacity;\r\n\r\n\t\tL.DomUtil.setOpacity(this._icon, opacity);\r\n\r\n\t\tif (this._shadow) {\r\n\t\t\tL.DomUtil.setOpacity(this._shadow, opacity);\r\n\t\t}\r\n\t},\r\n\r\n\t_bringToFront: function () {\r\n\t\tthis._updateZIndex(this.options.riseOffset);\r\n\t},\r\n\r\n\t_resetZIndex: function () {\r\n\t\tthis._updateZIndex(0);\r\n\t},\r\n\r\n\t_getPopupAnchor: function () {\r\n\t\treturn this.options.icon.options.popupAnchor || [0, 0];\r\n\t},\r\n\r\n\t_getTooltipAnchor: function () {\r\n\t\treturn this.options.icon.options.tooltipAnchor || [0, 0];\r\n\t}\r\n});\r\n\r\n\r\n// factory L.marker(latlng: LatLng, options? : Marker options)\r\n\r\n// @factory L.marker(latlng: LatLng, options? : Marker options)\r\n// Instantiates a Marker object given a geographical point and optionally an options object.\r\nL.marker = function (latlng, options) {\r\n\treturn new L.Marker(latlng, options);\r\n};\r\n\n\n\n/*\n * @class DivIcon\n * @aka L.DivIcon\n * @inherits Icon\n *\n * Represents a lightweight icon for markers that uses a simple `<div>`\n * element instead of an image. Inherits from `Icon` but ignores the `iconUrl` and shadow options.\n *\n * @example\n * ```js\n * var myIcon = L.divIcon({className: 'my-div-icon'});\n * // you can set .my-div-icon styles in CSS\n *\n * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);\n * ```\n *\n * By default, it has a 'leaflet-div-icon' CSS class and is styled as a little white square with a shadow.\n */\n\nL.DivIcon = L.Icon.extend({\n\toptions: {\n\t\t// @section\n\t\t// @aka DivIcon options\n\t\ticonSize: [12, 12], // also can be set through CSS\n\n\t\t// iconAnchor: (Point),\n\t\t// popupAnchor: (Point),\n\n\t\t// @option html: String = ''\n\t\t// Custom HTML code to put inside the div element, empty by default.\n\t\thtml: false,\n\n\t\t// @option bgPos: Point = [0, 0]\n\t\t// Optional relative position of the background, in pixels\n\t\tbgPos: null,\n\n\t\tclassName: 'leaflet-div-icon'\n\t},\n\n\tcreateIcon: function (oldIcon) {\n\t\tvar div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),\n\t\t    options = this.options;\n\n\t\tdiv.innerHTML = options.html !== false ? options.html : '';\n\n\t\tif (options.bgPos) {\n\t\t\tvar bgPos = L.point(options.bgPos);\n\t\t\tdiv.style.backgroundPosition = (-bgPos.x) + 'px ' + (-bgPos.y) + 'px';\n\t\t}\n\t\tthis._setIconStyles(div, 'icon');\n\n\t\treturn div;\n\t},\n\n\tcreateShadow: function () {\n\t\treturn null;\n\t}\n});\n\n// @factory L.divIcon(options: DivIcon options)\n// Creates a `DivIcon` instance with the given options.\nL.divIcon = function (options) {\n\treturn new L.DivIcon(options);\n};\n\n\n\n/*\r\n * @class DivOverlay\r\n * @inherits Layer\r\n * @aka L.DivOverlay\r\n * Base model for L.Popup and L.Tooltip. Inherit from it for custom popup like plugins.\r\n */\r\n\r\n// @namespace DivOverlay\r\nL.DivOverlay = L.Layer.extend({\r\n\r\n\t// @section\r\n\t// @aka DivOverlay options\r\n\toptions: {\r\n\t\t// @option offset: Point = Point(0, 7)\r\n\t\t// The offset of the popup position. Useful to control the anchor\r\n\t\t// of the popup when opening it on some overlays.\r\n\t\toffset: [0, 7],\r\n\r\n\t\t// @option className: String = ''\r\n\t\t// A custom CSS class name to assign to the popup.\r\n\t\tclassName: '',\r\n\r\n\t\t// @option pane: String = 'popupPane'\r\n\t\t// `Map pane` where the popup will be added.\r\n\t\tpane: 'popupPane'\r\n\t},\r\n\r\n\tinitialize: function (options, source) {\r\n\t\tL.setOptions(this, options);\r\n\r\n\t\tthis._source = source;\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tthis._zoomAnimated = map._zoomAnimated;\r\n\r\n\t\tif (!this._container) {\r\n\t\t\tthis._initLayout();\r\n\t\t}\r\n\r\n\t\tif (map._fadeAnimated) {\r\n\t\t\tL.DomUtil.setOpacity(this._container, 0);\r\n\t\t}\r\n\r\n\t\tclearTimeout(this._removeTimeout);\r\n\t\tthis.getPane().appendChild(this._container);\r\n\t\tthis.update();\r\n\r\n\t\tif (map._fadeAnimated) {\r\n\t\t\tL.DomUtil.setOpacity(this._container, 1);\r\n\t\t}\r\n\r\n\t\tthis.bringToFront();\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tif (map._fadeAnimated) {\r\n\t\t\tL.DomUtil.setOpacity(this._container, 0);\r\n\t\t\tthis._removeTimeout = setTimeout(L.bind(L.DomUtil.remove, L.DomUtil, this._container), 200);\r\n\t\t} else {\r\n\t\t\tL.DomUtil.remove(this._container);\r\n\t\t}\r\n\t},\r\n\r\n\t// @namespace Popup\r\n\t// @method getLatLng: LatLng\r\n\t// Returns the geographical point of popup.\r\n\tgetLatLng: function () {\r\n\t\treturn this._latlng;\r\n\t},\r\n\r\n\t// @method setLatLng(latlng: LatLng): this\r\n\t// Sets the geographical point where the popup will open.\r\n\tsetLatLng: function (latlng) {\r\n\t\tthis._latlng = L.latLng(latlng);\r\n\t\tif (this._map) {\r\n\t\t\tthis._updatePosition();\r\n\t\t\tthis._adjustPan();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getContent: String|HTMLElement\r\n\t// Returns the content of the popup.\r\n\tgetContent: function () {\r\n\t\treturn this._content;\r\n\t},\r\n\r\n\t// @method setContent(htmlContent: String|HTMLElement|Function): this\r\n\t// Sets the HTML content of the popup. If a function is passed the source layer will be passed to the function. The function should return a `String` or `HTMLElement` to be used in the popup.\r\n\tsetContent: function (content) {\r\n\t\tthis._content = content;\r\n\t\tthis.update();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getElement: String|HTMLElement\r\n\t// Alias for [getContent()](#popup-getcontent)\r\n\tgetElement: function () {\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\t// @method update: null\r\n\t// Updates the popup content, layout and position. Useful for updating the popup after something inside changed, e.g. image loaded.\r\n\tupdate: function () {\r\n\t\tif (!this._map) { return; }\r\n\r\n\t\tthis._container.style.visibility = 'hidden';\r\n\r\n\t\tthis._updateContent();\r\n\t\tthis._updateLayout();\r\n\t\tthis._updatePosition();\r\n\r\n\t\tthis._container.style.visibility = '';\r\n\r\n\t\tthis._adjustPan();\r\n\t},\r\n\r\n\tgetEvents: function () {\r\n\t\tvar events = {\r\n\t\t\tzoom: this._updatePosition,\r\n\t\t\tviewreset: this._updatePosition\r\n\t\t};\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tevents.zoomanim = this._animateZoom;\r\n\t\t}\r\n\t\treturn events;\r\n\t},\r\n\r\n\t// @method isOpen: Boolean\r\n\t// Returns `true` when the popup is visible on the map.\r\n\tisOpen: function () {\r\n\t\treturn !!this._map && this._map.hasLayer(this);\r\n\t},\r\n\r\n\t// @method bringToFront: this\r\n\t// Brings this popup in front of other popups (in the same map pane).\r\n\tbringToFront: function () {\r\n\t\tif (this._map) {\r\n\t\t\tL.DomUtil.toFront(this._container);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method bringToBack: this\r\n\t// Brings this popup to the back of other popups (in the same map pane).\r\n\tbringToBack: function () {\r\n\t\tif (this._map) {\r\n\t\t\tL.DomUtil.toBack(this._container);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_updateContent: function () {\r\n\t\tif (!this._content) { return; }\r\n\r\n\t\tvar node = this._contentNode;\r\n\t\tvar content = (typeof this._content === 'function') ? this._content(this._source || this) : this._content;\r\n\r\n\t\tif (typeof content === 'string') {\r\n\t\t\tnode.innerHTML = content;\r\n\t\t} else {\r\n\t\t\twhile (node.hasChildNodes()) {\r\n\t\t\t\tnode.removeChild(node.firstChild);\r\n\t\t\t}\r\n\t\t\tnode.appendChild(content);\r\n\t\t}\r\n\t\tthis.fire('contentupdate');\r\n\t},\r\n\r\n\t_updatePosition: function () {\r\n\t\tif (!this._map) { return; }\r\n\r\n\t\tvar pos = this._map.latLngToLayerPoint(this._latlng),\r\n\t\t    offset = L.point(this.options.offset),\r\n\t\t    anchor = this._getAnchor();\r\n\r\n\t\tif (this._zoomAnimated) {\r\n\t\t\tL.DomUtil.setPosition(this._container, pos.add(anchor));\r\n\t\t} else {\r\n\t\t\toffset = offset.add(pos).add(anchor);\r\n\t\t}\r\n\r\n\t\tvar bottom = this._containerBottom = -offset.y,\r\n\t\t    left = this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x;\r\n\r\n\t\t// bottom position the popup in case the height of the popup changes (images loading etc)\r\n\t\tthis._container.style.bottom = bottom + 'px';\r\n\t\tthis._container.style.left = left + 'px';\r\n\t},\r\n\r\n\t_getAnchor: function () {\r\n\t\treturn [0, 0];\r\n\t}\r\n\r\n});\r\n\n\n\n/*\r\n * @class Popup\r\n * @inherits DivOverlay\r\n * @aka L.Popup\r\n * Used to open popups in certain places of the map. Use [Map.openPopup](#map-openpopup) to\r\n * open popups while making sure that only one popup is open at one time\r\n * (recommended for usability), or use [Map.addLayer](#map-addlayer) to open as many as you want.\r\n *\r\n * @example\r\n *\r\n * If you want to just bind a popup to marker click and then open it, it's really easy:\r\n *\r\n * ```js\r\n * marker.bindPopup(popupContent).openPopup();\r\n * ```\r\n * Path overlays like polylines also have a `bindPopup` method.\r\n * Here's a more complicated way to open a popup on a map:\r\n *\r\n * ```js\r\n * var popup = L.popup()\r\n * \t.setLatLng(latlng)\r\n * \t.setContent('<p>Hello world!<br />This is a nice popup.</p>')\r\n * \t.openOn(map);\r\n * ```\r\n */\r\n\r\n\r\n// @namespace Popup\r\nL.Popup = L.DivOverlay.extend({\r\n\r\n\t// @section\r\n\t// @aka Popup options\r\n\toptions: {\r\n\t\t// @option maxWidth: Number = 300\r\n\t\t// Max width of the popup, in pixels.\r\n\t\tmaxWidth: 300,\r\n\r\n\t\t// @option minWidth: Number = 50\r\n\t\t// Min width of the popup, in pixels.\r\n\t\tminWidth: 50,\r\n\r\n\t\t// @option maxHeight: Number = null\r\n\t\t// If set, creates a scrollable container of the given height\r\n\t\t// inside a popup if its content exceeds it.\r\n\t\tmaxHeight: null,\r\n\r\n\t\t// @option autoPan: Boolean = true\r\n\t\t// Set it to `false` if you don't want the map to do panning animation\r\n\t\t// to fit the opened popup.\r\n\t\tautoPan: true,\r\n\r\n\t\t// @option autoPanPaddingTopLeft: Point = null\r\n\t\t// The margin between the popup and the top left corner of the map\r\n\t\t// view after autopanning was performed.\r\n\t\tautoPanPaddingTopLeft: null,\r\n\r\n\t\t// @option autoPanPaddingBottomRight: Point = null\r\n\t\t// The margin between the popup and the bottom right corner of the map\r\n\t\t// view after autopanning was performed.\r\n\t\tautoPanPaddingBottomRight: null,\r\n\r\n\t\t// @option autoPanPadding: Point = Point(5, 5)\r\n\t\t// Equivalent of setting both top left and bottom right autopan padding to the same value.\r\n\t\tautoPanPadding: [5, 5],\r\n\r\n\t\t// @option keepInView: Boolean = false\r\n\t\t// Set it to `true` if you want to prevent users from panning the popup\r\n\t\t// off of the screen while it is open.\r\n\t\tkeepInView: false,\r\n\r\n\t\t// @option closeButton: Boolean = true\r\n\t\t// Controls the presence of a close button in the popup.\r\n\t\tcloseButton: true,\r\n\r\n\t\t// @option autoClose: Boolean = true\r\n\t\t// Set it to `false` if you want to override the default behavior of\r\n\t\t// the popup closing when user clicks the map (set globally by\r\n\t\t// the Map's [closePopupOnClick](#map-closepopuponclick) option).\r\n\t\tautoClose: true,\r\n\r\n\t\t// @option className: String = ''\r\n\t\t// A custom CSS class name to assign to the popup.\r\n\t\tclassName: ''\r\n\t},\r\n\r\n\t// @namespace Popup\r\n\t// @method openOn(map: Map): this\r\n\t// Adds the popup to the map and closes the previous one. The same as `map.openPopup(popup)`.\r\n\topenOn: function (map) {\r\n\t\tmap.openPopup(this);\r\n\t\treturn this;\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tL.DivOverlay.prototype.onAdd.call(this, map);\r\n\r\n\t\t// @namespace Map\r\n\t\t// @section Popup events\r\n\t\t// @event popupopen: PopupEvent\r\n\t\t// Fired when a popup is opened in the map\r\n\t\tmap.fire('popupopen', {popup: this});\r\n\r\n\t\tif (this._source) {\r\n\t\t\t// @namespace Layer\r\n\t\t\t// @section Popup events\r\n\t\t\t// @event popupopen: PopupEvent\r\n\t\t\t// Fired when a popup bound to this layer is opened\r\n\t\t\tthis._source.fire('popupopen', {popup: this}, true);\r\n\t\t\t// For non-path layers, we toggle the popup when clicking\r\n\t\t\t// again the layer, so prevent the map to reopen it.\r\n\t\t\tif (!(this._source instanceof L.Path)) {\r\n\t\t\t\tthis._source.on('preclick', L.DomEvent.stopPropagation);\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tL.DivOverlay.prototype.onRemove.call(this, map);\r\n\r\n\t\t// @namespace Map\r\n\t\t// @section Popup events\r\n\t\t// @event popupclose: PopupEvent\r\n\t\t// Fired when a popup in the map is closed\r\n\t\tmap.fire('popupclose', {popup: this});\r\n\r\n\t\tif (this._source) {\r\n\t\t\t// @namespace Layer\r\n\t\t\t// @section Popup events\r\n\t\t\t// @event popupclose: PopupEvent\r\n\t\t\t// Fired when a popup bound to this layer is closed\r\n\t\t\tthis._source.fire('popupclose', {popup: this}, true);\r\n\t\t\tif (!(this._source instanceof L.Path)) {\r\n\t\t\t\tthis._source.off('preclick', L.DomEvent.stopPropagation);\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\tgetEvents: function () {\r\n\t\tvar events = L.DivOverlay.prototype.getEvents.call(this);\r\n\r\n\t\tif ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) {\r\n\t\t\tevents.preclick = this._close;\r\n\t\t}\r\n\r\n\t\tif (this.options.keepInView) {\r\n\t\t\tevents.moveend = this._adjustPan;\r\n\t\t}\r\n\r\n\t\treturn events;\r\n\t},\r\n\r\n\t_close: function () {\r\n\t\tif (this._map) {\r\n\t\t\tthis._map.closePopup(this);\r\n\t\t}\r\n\t},\r\n\r\n\t_initLayout: function () {\r\n\t\tvar prefix = 'leaflet-popup',\r\n\t\t    container = this._container = L.DomUtil.create('div',\r\n\t\t\tprefix + ' ' + (this.options.className || '') +\r\n\t\t\t' leaflet-zoom-animated');\r\n\r\n\t\tif (this.options.closeButton) {\r\n\t\t\tvar closeButton = this._closeButton = L.DomUtil.create('a', prefix + '-close-button', container);\r\n\t\t\tcloseButton.href = '#close';\r\n\t\t\tcloseButton.innerHTML = '&#215;';\r\n\r\n\t\t\tL.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);\r\n\t\t}\r\n\r\n\t\tvar wrapper = this._wrapper = L.DomUtil.create('div', prefix + '-content-wrapper', container);\r\n\t\tthis._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);\r\n\r\n\t\tL.DomEvent\r\n\t\t\t.disableClickPropagation(wrapper)\r\n\t\t\t.disableScrollPropagation(this._contentNode)\r\n\t\t\t.on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);\r\n\r\n\t\tthis._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);\r\n\t\tthis._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);\r\n\t},\r\n\r\n\t_updateLayout: function () {\r\n\t\tvar container = this._contentNode,\r\n\t\t    style = container.style;\r\n\r\n\t\tstyle.width = '';\r\n\t\tstyle.whiteSpace = 'nowrap';\r\n\r\n\t\tvar width = container.offsetWidth;\r\n\t\twidth = Math.min(width, this.options.maxWidth);\r\n\t\twidth = Math.max(width, this.options.minWidth);\r\n\r\n\t\tstyle.width = (width + 1) + 'px';\r\n\t\tstyle.whiteSpace = '';\r\n\r\n\t\tstyle.height = '';\r\n\r\n\t\tvar height = container.offsetHeight,\r\n\t\t    maxHeight = this.options.maxHeight,\r\n\t\t    scrolledClass = 'leaflet-popup-scrolled';\r\n\r\n\t\tif (maxHeight && height > maxHeight) {\r\n\t\t\tstyle.height = maxHeight + 'px';\r\n\t\t\tL.DomUtil.addClass(container, scrolledClass);\r\n\t\t} else {\r\n\t\t\tL.DomUtil.removeClass(container, scrolledClass);\r\n\t\t}\r\n\r\n\t\tthis._containerWidth = this._container.offsetWidth;\r\n\t},\r\n\r\n\t_animateZoom: function (e) {\r\n\t\tvar pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center),\r\n\t\t    anchor = this._getAnchor();\r\n\t\tL.DomUtil.setPosition(this._container, pos.add(anchor));\r\n\t},\r\n\r\n\t_adjustPan: function () {\r\n\t\tif (!this.options.autoPan || (this._map._panAnim && this._map._panAnim._inProgress)) { return; }\r\n\r\n\t\tvar map = this._map,\r\n\t\t    marginBottom = parseInt(L.DomUtil.getStyle(this._container, 'marginBottom'), 10) || 0,\r\n\t\t    containerHeight = this._container.offsetHeight + marginBottom,\r\n\t\t    containerWidth = this._containerWidth,\r\n\t\t    layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);\r\n\r\n\t\tlayerPos._add(L.DomUtil.getPosition(this._container));\r\n\r\n\t\tvar containerPos = map.layerPointToContainerPoint(layerPos),\r\n\t\t    padding = L.point(this.options.autoPanPadding),\r\n\t\t    paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),\r\n\t\t    paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),\r\n\t\t    size = map.getSize(),\r\n\t\t    dx = 0,\r\n\t\t    dy = 0;\r\n\r\n\t\tif (containerPos.x + containerWidth + paddingBR.x > size.x) { // right\r\n\t\t\tdx = containerPos.x + containerWidth - size.x + paddingBR.x;\r\n\t\t}\r\n\t\tif (containerPos.x - dx - paddingTL.x < 0) { // left\r\n\t\t\tdx = containerPos.x - paddingTL.x;\r\n\t\t}\r\n\t\tif (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom\r\n\t\t\tdy = containerPos.y + containerHeight - size.y + paddingBR.y;\r\n\t\t}\r\n\t\tif (containerPos.y - dy - paddingTL.y < 0) { // top\r\n\t\t\tdy = containerPos.y - paddingTL.y;\r\n\t\t}\r\n\r\n\t\t// @namespace Map\r\n\t\t// @section Popup events\r\n\t\t// @event autopanstart: Event\r\n\t\t// Fired when the map starts autopanning when opening a popup.\r\n\t\tif (dx || dy) {\r\n\t\t\tmap\r\n\t\t\t    .fire('autopanstart')\r\n\t\t\t    .panBy([dx, dy]);\r\n\t\t}\r\n\t},\r\n\r\n\t_onCloseButtonClick: function (e) {\r\n\t\tthis._close();\r\n\t\tL.DomEvent.stop(e);\r\n\t},\r\n\r\n\t_getAnchor: function () {\r\n\t\t// Where should we anchor the popup on the source layer?\r\n\t\treturn L.point(this._source && this._source._getPopupAnchor ? this._source._getPopupAnchor() : [0, 0]);\r\n\t}\r\n\r\n});\r\n\r\n// @namespace Popup\r\n// @factory L.popup(options?: Popup options, source?: Layer)\r\n// Instantiates a `Popup` object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the popup with a reference to the Layer to which it refers.\r\nL.popup = function (options, source) {\r\n\treturn new L.Popup(options, source);\r\n};\r\n\r\n\r\n/* @namespace Map\r\n * @section Interaction Options\r\n * @option closePopupOnClick: Boolean = true\r\n * Set it to `false` if you don't want popups to close when user clicks the map.\r\n */\r\nL.Map.mergeOptions({\r\n\tclosePopupOnClick: true\r\n});\r\n\r\n\r\n// @namespace Map\r\n// @section Methods for Layers and Controls\r\nL.Map.include({\r\n\t// @method openPopup(popup: Popup): this\r\n\t// Opens the specified popup while closing the previously opened (to make sure only one is opened at one time for usability).\r\n\t// @alternative\r\n\t// @method openPopup(content: String|HTMLElement, latlng: LatLng, options?: Popup options): this\r\n\t// Creates a popup with the specified content and options and opens it in the given point on a map.\r\n\topenPopup: function (popup, latlng, options) {\r\n\t\tif (!(popup instanceof L.Popup)) {\r\n\t\t\tpopup = new L.Popup(options).setContent(popup);\r\n\t\t}\r\n\r\n\t\tif (latlng) {\r\n\t\t\tpopup.setLatLng(latlng);\r\n\t\t}\r\n\r\n\t\tif (this.hasLayer(popup)) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tif (this._popup && this._popup.options.autoClose) {\r\n\t\t\tthis.closePopup();\r\n\t\t}\r\n\r\n\t\tthis._popup = popup;\r\n\t\treturn this.addLayer(popup);\r\n\t},\r\n\r\n\t// @method closePopup(popup?: Popup): this\r\n\t// Closes the popup previously opened with [openPopup](#map-openpopup) (or the given one).\r\n\tclosePopup: function (popup) {\r\n\t\tif (!popup || popup === this._popup) {\r\n\t\t\tpopup = this._popup;\r\n\t\t\tthis._popup = null;\r\n\t\t}\r\n\t\tif (popup) {\r\n\t\t\tthis.removeLayer(popup);\r\n\t\t}\r\n\t\treturn this;\r\n\t}\r\n});\r\n\r\n/*\r\n * @namespace Layer\r\n * @section Popup methods example\r\n *\r\n * All layers share a set of methods convenient for binding popups to it.\r\n *\r\n * ```js\r\n * var layer = L.Polygon(latlngs).bindPopup('Hi There!').addTo(map);\r\n * layer.openPopup();\r\n * layer.closePopup();\r\n * ```\r\n *\r\n * Popups will also be automatically opened when the layer is clicked on and closed when the layer is removed from the map or another popup is opened.\r\n */\r\n\r\n// @section Popup methods\r\nL.Layer.include({\r\n\r\n\t// @method bindPopup(content: String|HTMLElement|Function|Popup, options?: Popup options): this\r\n\t// Binds a popup to the layer with the passed `content` and sets up the\r\n\t// neccessary event listeners. If a `Function` is passed it will receive\r\n\t// the layer as the first argument and should return a `String` or `HTMLElement`.\r\n\tbindPopup: function (content, options) {\r\n\r\n\t\tif (content instanceof L.Popup) {\r\n\t\t\tL.setOptions(content, options);\r\n\t\t\tthis._popup = content;\r\n\t\t\tcontent._source = this;\r\n\t\t} else {\r\n\t\t\tif (!this._popup || options) {\r\n\t\t\t\tthis._popup = new L.Popup(options, this);\r\n\t\t\t}\r\n\t\t\tthis._popup.setContent(content);\r\n\t\t}\r\n\r\n\t\tif (!this._popupHandlersAdded) {\r\n\t\t\tthis.on({\r\n\t\t\t\tclick: this._openPopup,\r\n\t\t\t\tremove: this.closePopup,\r\n\t\t\t\tmove: this._movePopup\r\n\t\t\t});\r\n\t\t\tthis._popupHandlersAdded = true;\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method unbindPopup(): this\r\n\t// Removes the popup previously bound with `bindPopup`.\r\n\tunbindPopup: function () {\r\n\t\tif (this._popup) {\r\n\t\t\tthis.off({\r\n\t\t\t\tclick: this._openPopup,\r\n\t\t\t\tremove: this.closePopup,\r\n\t\t\t\tmove: this._movePopup\r\n\t\t\t});\r\n\t\t\tthis._popupHandlersAdded = false;\r\n\t\t\tthis._popup = null;\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method openPopup(latlng?: LatLng): this\r\n\t// Opens the bound popup at the specificed `latlng` or at the default popup anchor if no `latlng` is passed.\r\n\topenPopup: function (layer, latlng) {\r\n\t\tif (!(layer instanceof L.Layer)) {\r\n\t\t\tlatlng = layer;\r\n\t\t\tlayer = this;\r\n\t\t}\r\n\r\n\t\tif (layer instanceof L.FeatureGroup) {\r\n\t\t\tfor (var id in this._layers) {\r\n\t\t\t\tlayer = this._layers[id];\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (!latlng) {\r\n\t\t\tlatlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();\r\n\t\t}\r\n\r\n\t\tif (this._popup && this._map) {\r\n\t\t\t// set popup source to this layer\r\n\t\t\tthis._popup._source = layer;\r\n\r\n\t\t\t// update the popup (content, layout, ect...)\r\n\t\t\tthis._popup.update();\r\n\r\n\t\t\t// open the popup on the map\r\n\t\t\tthis._map.openPopup(this._popup, latlng);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method closePopup(): this\r\n\t// Closes the popup bound to this layer if it is open.\r\n\tclosePopup: function () {\r\n\t\tif (this._popup) {\r\n\t\t\tthis._popup._close();\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method togglePopup(): this\r\n\t// Opens or closes the popup bound to this layer depending on its current state.\r\n\ttogglePopup: function (target) {\r\n\t\tif (this._popup) {\r\n\t\t\tif (this._popup._map) {\r\n\t\t\t\tthis.closePopup();\r\n\t\t\t} else {\r\n\t\t\t\tthis.openPopup(target);\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method isPopupOpen(): boolean\r\n\t// Returns `true` if the popup bound to this layer is currently open.\r\n\tisPopupOpen: function () {\r\n\t\treturn this._popup.isOpen();\r\n\t},\r\n\r\n\t// @method setPopupContent(content: String|HTMLElement|Popup): this\r\n\t// Sets the content of the popup bound to this layer.\r\n\tsetPopupContent: function (content) {\r\n\t\tif (this._popup) {\r\n\t\t\tthis._popup.setContent(content);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getPopup(): Popup\r\n\t// Returns the popup bound to this layer.\r\n\tgetPopup: function () {\r\n\t\treturn this._popup;\r\n\t},\r\n\r\n\t_openPopup: function (e) {\r\n\t\tvar layer = e.layer || e.target;\r\n\r\n\t\tif (!this._popup) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tif (!this._map) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\t// prevent map click\r\n\t\tL.DomEvent.stop(e);\r\n\r\n\t\t// if this inherits from Path its a vector and we can just\r\n\t\t// open the popup at the new location\r\n\t\tif (layer instanceof L.Path) {\r\n\t\t\tthis.openPopup(e.layer || e.target, e.latlng);\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\t// otherwise treat it like a marker and figure out\r\n\t\t// if we should toggle it open/closed\r\n\t\tif (this._map.hasLayer(this._popup) && this._popup._source === layer) {\r\n\t\t\tthis.closePopup();\r\n\t\t} else {\r\n\t\t\tthis.openPopup(layer, e.latlng);\r\n\t\t}\r\n\t},\r\n\r\n\t_movePopup: function (e) {\r\n\t\tthis._popup.setLatLng(e.latlng);\r\n\t}\r\n});\r\n\n\n\n/*\n * @class Tooltip\n * @inherits DivOverlay\n * @aka L.Tooltip\n * Used to display small texts on top of map layers.\n *\n * @example\n *\n * ```js\n * marker.bindTooltip(\"my tooltip text\").openTooltip();\n * ```\n * Note about tooltip offset. Leaflet takes two options in consideration\n * for computing tooltip offseting:\n * - the `offset` Tooltip option: it defaults to [0, 0], and it's specific to one tooltip.\n *   Add a positive x offset to move the tooltip to the right, and a positive y offset to\n *   move it to the bottom. Negatives will move to the left and top.\n * - the `tooltipAnchor` Icon option: this will only be considered for Marker. You\n *   should adapt this value if you use a custom icon.\n */\n\n\n// @namespace Tooltip\nL.Tooltip = L.DivOverlay.extend({\n\n\t// @section\n\t// @aka Tooltip options\n\toptions: {\n\t\t// @option pane: String = 'tooltipPane'\n\t\t// `Map pane` where the tooltip will be added.\n\t\tpane: 'tooltipPane',\n\n\t\t// @option offset: Point = Point(0, 0)\n\t\t// Optional offset of the tooltip position.\n\t\toffset: [0, 0],\n\n\t\t// @option direction: String = 'auto'\n\t\t// Direction where to open the tooltip. Possible values are: `right`, `left`,\n\t\t// `top`, `bottom`, `center`, `auto`.\n\t\t// `auto` will dynamicaly switch between `right` and `left` according to the tooltip\n\t\t// position on the map.\n\t\tdirection: 'auto',\n\n\t\t// @option permanent: Boolean = false\n\t\t// Whether to open the tooltip permanently or only on mouseover.\n\t\tpermanent: false,\n\n\t\t// @option sticky: Boolean = false\n\t\t// If true, the tooltip will follow the mouse instead of being fixed at the feature center.\n\t\tsticky: false,\n\n\t\t// @option interactive: Boolean = false\n\t\t// If true, the tooltip will listen to the feature events.\n\t\tinteractive: false,\n\n\t\t// @option opacity: Number = 0.9\n\t\t// Tooltip container opacity.\n\t\topacity: 0.9\n\t},\n\n\tonAdd: function (map) {\n\t\tL.DivOverlay.prototype.onAdd.call(this, map);\n\t\tthis.setOpacity(this.options.opacity);\n\n\t\t// @namespace Map\n\t\t// @section Tooltip events\n\t\t// @event tooltipopen: TooltipEvent\n\t\t// Fired when a tooltip is opened in the map.\n\t\tmap.fire('tooltipopen', {tooltip: this});\n\n\t\tif (this._source) {\n\t\t\t// @namespace Layer\n\t\t\t// @section Tooltip events\n\t\t\t// @event tooltipopen: TooltipEvent\n\t\t\t// Fired when a tooltip bound to this layer is opened.\n\t\t\tthis._source.fire('tooltipopen', {tooltip: this}, true);\n\t\t}\n\t},\n\n\tonRemove: function (map) {\n\t\tL.DivOverlay.prototype.onRemove.call(this, map);\n\n\t\t// @namespace Map\n\t\t// @section Tooltip events\n\t\t// @event tooltipclose: TooltipEvent\n\t\t// Fired when a tooltip in the map is closed.\n\t\tmap.fire('tooltipclose', {tooltip: this});\n\n\t\tif (this._source) {\n\t\t\t// @namespace Layer\n\t\t\t// @section Tooltip events\n\t\t\t// @event tooltipclose: TooltipEvent\n\t\t\t// Fired when a tooltip bound to this layer is closed.\n\t\t\tthis._source.fire('tooltipclose', {tooltip: this}, true);\n\t\t}\n\t},\n\n\tgetEvents: function () {\n\t\tvar events = L.DivOverlay.prototype.getEvents.call(this);\n\n\t\tif (L.Browser.touch && !this.options.permanent) {\n\t\t\tevents.preclick = this._close;\n\t\t}\n\n\t\treturn events;\n\t},\n\n\t_close: function () {\n\t\tif (this._map) {\n\t\t\tthis._map.closeTooltip(this);\n\t\t}\n\t},\n\n\t_initLayout: function () {\n\t\tvar prefix = 'leaflet-tooltip',\n\t\t    className = prefix + ' ' + (this.options.className || '') + ' leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');\n\n\t\tthis._contentNode = this._container = L.DomUtil.create('div', className);\n\t},\n\n\t_updateLayout: function () {},\n\n\t_adjustPan: function () {},\n\n\t_setPosition: function (pos) {\n\t\tvar map = this._map,\n\t\t    container = this._container,\n\t\t    centerPoint = map.latLngToContainerPoint(map.getCenter()),\n\t\t    tooltipPoint = map.layerPointToContainerPoint(pos),\n\t\t    direction = this.options.direction,\n\t\t    tooltipWidth = container.offsetWidth,\n\t\t    tooltipHeight = container.offsetHeight,\n\t\t    offset = L.point(this.options.offset),\n\t\t    anchor = this._getAnchor();\n\n\t\tif (direction === 'top') {\n\t\t\tpos = pos.add(L.point(-tooltipWidth / 2 + offset.x, -tooltipHeight + offset.y + anchor.y, true));\n\t\t} else if (direction === 'bottom') {\n\t\t\tpos = pos.subtract(L.point(tooltipWidth / 2 - offset.x, -offset.y, true));\n\t\t} else if (direction === 'center') {\n\t\t\tpos = pos.subtract(L.point(tooltipWidth / 2 + offset.x, tooltipHeight / 2 - anchor.y + offset.y, true));\n\t\t} else if (direction === 'right' || direction === 'auto' && tooltipPoint.x < centerPoint.x) {\n\t\t\tdirection = 'right';\n\t\t\tpos = pos.add(L.point(offset.x + anchor.x, anchor.y - tooltipHeight / 2 + offset.y, true));\n\t\t} else {\n\t\t\tdirection = 'left';\n\t\t\tpos = pos.subtract(L.point(tooltipWidth + anchor.x - offset.x, tooltipHeight / 2 - anchor.y - offset.y, true));\n\t\t}\n\n\t\tL.DomUtil.removeClass(container, 'leaflet-tooltip-right');\n\t\tL.DomUtil.removeClass(container, 'leaflet-tooltip-left');\n\t\tL.DomUtil.removeClass(container, 'leaflet-tooltip-top');\n\t\tL.DomUtil.removeClass(container, 'leaflet-tooltip-bottom');\n\t\tL.DomUtil.addClass(container, 'leaflet-tooltip-' + direction);\n\t\tL.DomUtil.setPosition(container, pos);\n\t},\n\n\t_updatePosition: function () {\n\t\tvar pos = this._map.latLngToLayerPoint(this._latlng);\n\t\tthis._setPosition(pos);\n\t},\n\n\tsetOpacity: function (opacity) {\n\t\tthis.options.opacity = opacity;\n\n\t\tif (this._container) {\n\t\t\tL.DomUtil.setOpacity(this._container, opacity);\n\t\t}\n\t},\n\n\t_animateZoom: function (e) {\n\t\tvar pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center);\n\t\tthis._setPosition(pos);\n\t},\n\n\t_getAnchor: function () {\n\t\t// Where should we anchor the tooltip on the source layer?\n\t\treturn L.point(this._source && this._source._getTooltipAnchor && !this.options.sticky ? this._source._getTooltipAnchor() : [0, 0]);\n\t}\n\n});\n\n// @namespace Tooltip\n// @factory L.tooltip(options?: Tooltip options, source?: Layer)\n// Instantiates a Tooltip object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the tooltip with a reference to the Layer to which it refers.\nL.tooltip = function (options, source) {\n\treturn new L.Tooltip(options, source);\n};\n\n// @namespace Map\n// @section Methods for Layers and Controls\nL.Map.include({\n\n\t// @method openTooltip(tooltip: Tooltip): this\n\t// Opens the specified tooltip.\n\t// @alternative\n\t// @method openTooltip(content: String|HTMLElement, latlng: LatLng, options?: Tooltip options): this\n\t// Creates a tooltip with the specified content and options and open it.\n\topenTooltip: function (tooltip, latlng, options) {\n\t\tif (!(tooltip instanceof L.Tooltip)) {\n\t\t\ttooltip = new L.Tooltip(options).setContent(tooltip);\n\t\t}\n\n\t\tif (latlng) {\n\t\t\ttooltip.setLatLng(latlng);\n\t\t}\n\n\t\tif (this.hasLayer(tooltip)) {\n\t\t\treturn this;\n\t\t}\n\n\t\treturn this.addLayer(tooltip);\n\t},\n\n\t// @method closeTooltip(tooltip?: Tooltip): this\n\t// Closes the tooltip given as parameter.\n\tcloseTooltip: function (tooltip) {\n\t\tif (tooltip) {\n\t\t\tthis.removeLayer(tooltip);\n\t\t}\n\t\treturn this;\n\t}\n\n});\n\n/*\n * @namespace Layer\n * @section Tooltip methods example\n *\n * All layers share a set of methods convenient for binding tooltips to it.\n *\n * ```js\n * var layer = L.Polygon(latlngs).bindTooltip('Hi There!').addTo(map);\n * layer.openTooltip();\n * layer.closeTooltip();\n * ```\n */\n\n// @section Tooltip methods\nL.Layer.include({\n\n\t// @method bindTooltip(content: String|HTMLElement|Function|Tooltip, options?: Tooltip options): this\n\t// Binds a tooltip to the layer with the passed `content` and sets up the\n\t// neccessary event listeners. If a `Function` is passed it will receive\n\t// the layer as the first argument and should return a `String` or `HTMLElement`.\n\tbindTooltip: function (content, options) {\n\n\t\tif (content instanceof L.Tooltip) {\n\t\t\tL.setOptions(content, options);\n\t\t\tthis._tooltip = content;\n\t\t\tcontent._source = this;\n\t\t} else {\n\t\t\tif (!this._tooltip || options) {\n\t\t\t\tthis._tooltip = L.tooltip(options, this);\n\t\t\t}\n\t\t\tthis._tooltip.setContent(content);\n\n\t\t}\n\n\t\tthis._initTooltipInteractions();\n\n\t\tif (this._tooltip.options.permanent && this._map && this._map.hasLayer(this)) {\n\t\t\tthis.openTooltip();\n\t\t}\n\n\t\treturn this;\n\t},\n\n\t// @method unbindTooltip(): this\n\t// Removes the tooltip previously bound with `bindTooltip`.\n\tunbindTooltip: function () {\n\t\tif (this._tooltip) {\n\t\t\tthis._initTooltipInteractions(true);\n\t\t\tthis.closeTooltip();\n\t\t\tthis._tooltip = null;\n\t\t}\n\t\treturn this;\n\t},\n\n\t_initTooltipInteractions: function (remove) {\n\t\tif (!remove && this._tooltipHandlersAdded) { return; }\n\t\tvar onOff = remove ? 'off' : 'on',\n\t\t    events = {\n\t\t\tremove: this.closeTooltip,\n\t\t\tmove: this._moveTooltip\n\t\t    };\n\t\tif (!this._tooltip.options.permanent) {\n\t\t\tevents.mouseover = this._openTooltip;\n\t\t\tevents.mouseout = this.closeTooltip;\n\t\t\tif (this._tooltip.options.sticky) {\n\t\t\t\tevents.mousemove = this._moveTooltip;\n\t\t\t}\n\t\t\tif (L.Browser.touch) {\n\t\t\t\tevents.click = this._openTooltip;\n\t\t\t}\n\t\t} else {\n\t\t\tevents.add = this._openTooltip;\n\t\t}\n\t\tthis[onOff](events);\n\t\tthis._tooltipHandlersAdded = !remove;\n\t},\n\n\t// @method openTooltip(latlng?: LatLng): this\n\t// Opens the bound tooltip at the specificed `latlng` or at the default tooltip anchor if no `latlng` is passed.\n\topenTooltip: function (layer, latlng) {\n\t\tif (!(layer instanceof L.Layer)) {\n\t\t\tlatlng = layer;\n\t\t\tlayer = this;\n\t\t}\n\n\t\tif (layer instanceof L.FeatureGroup) {\n\t\t\tfor (var id in this._layers) {\n\t\t\t\tlayer = this._layers[id];\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\tif (!latlng) {\n\t\t\tlatlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();\n\t\t}\n\n\t\tif (this._tooltip && this._map) {\n\n\t\t\t// set tooltip source to this layer\n\t\t\tthis._tooltip._source = layer;\n\n\t\t\t// update the tooltip (content, layout, ect...)\n\t\t\tthis._tooltip.update();\n\n\t\t\t// open the tooltip on the map\n\t\t\tthis._map.openTooltip(this._tooltip, latlng);\n\n\t\t\t// Tooltip container may not be defined if not permanent and never\n\t\t\t// opened.\n\t\t\tif (this._tooltip.options.interactive && this._tooltip._container) {\n\t\t\t\tL.DomUtil.addClass(this._tooltip._container, 'leaflet-clickable');\n\t\t\t\tthis.addInteractiveTarget(this._tooltip._container);\n\t\t\t}\n\t\t}\n\n\t\treturn this;\n\t},\n\n\t// @method closeTooltip(): this\n\t// Closes the tooltip bound to this layer if it is open.\n\tcloseTooltip: function () {\n\t\tif (this._tooltip) {\n\t\t\tthis._tooltip._close();\n\t\t\tif (this._tooltip.options.interactive && this._tooltip._container) {\n\t\t\t\tL.DomUtil.removeClass(this._tooltip._container, 'leaflet-clickable');\n\t\t\t\tthis.removeInteractiveTarget(this._tooltip._container);\n\t\t\t}\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method toggleTooltip(): this\n\t// Opens or closes the tooltip bound to this layer depending on its current state.\n\ttoggleTooltip: function (target) {\n\t\tif (this._tooltip) {\n\t\t\tif (this._tooltip._map) {\n\t\t\t\tthis.closeTooltip();\n\t\t\t} else {\n\t\t\t\tthis.openTooltip(target);\n\t\t\t}\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method isTooltipOpen(): boolean\n\t// Returns `true` if the tooltip bound to this layer is currently open.\n\tisTooltipOpen: function () {\n\t\treturn this._tooltip.isOpen();\n\t},\n\n\t// @method setTooltipContent(content: String|HTMLElement|Tooltip): this\n\t// Sets the content of the tooltip bound to this layer.\n\tsetTooltipContent: function (content) {\n\t\tif (this._tooltip) {\n\t\t\tthis._tooltip.setContent(content);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method getTooltip(): Tooltip\n\t// Returns the tooltip bound to this layer.\n\tgetTooltip: function () {\n\t\treturn this._tooltip;\n\t},\n\n\t_openTooltip: function (e) {\n\t\tvar layer = e.layer || e.target;\n\n\t\tif (!this._tooltip || !this._map) {\n\t\t\treturn;\n\t\t}\n\t\tthis.openTooltip(layer, this._tooltip.options.sticky ? e.latlng : undefined);\n\t},\n\n\t_moveTooltip: function (e) {\n\t\tvar latlng = e.latlng, containerPoint, layerPoint;\n\t\tif (this._tooltip.options.sticky && e.originalEvent) {\n\t\t\tcontainerPoint = this._map.mouseEventToContainerPoint(e.originalEvent);\n\t\t\tlayerPoint = this._map.containerPointToLayerPoint(containerPoint);\n\t\t\tlatlng = this._map.layerPointToLatLng(layerPoint);\n\t\t}\n\t\tthis._tooltip.setLatLng(latlng);\n\t}\n});\n\n\n\n/*\r\n * @class LayerGroup\r\n * @aka L.LayerGroup\r\n * @inherits Layer\r\n *\r\n * Used to group several layers and handle them as one. If you add it to the map,\r\n * any layers added or removed from the group will be added/removed on the map as\r\n * well. Extends `Layer`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.layerGroup([marker1, marker2])\r\n * \t.addLayer(polyline)\r\n * \t.addTo(map);\r\n * ```\r\n */\r\n\r\nL.LayerGroup = L.Layer.extend({\r\n\r\n\tinitialize: function (layers) {\r\n\t\tthis._layers = {};\r\n\r\n\t\tvar i, len;\r\n\r\n\t\tif (layers) {\r\n\t\t\tfor (i = 0, len = layers.length; i < len; i++) {\r\n\t\t\t\tthis.addLayer(layers[i]);\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t// @method addLayer(layer: Layer): this\r\n\t// Adds the given layer to the group.\r\n\taddLayer: function (layer) {\r\n\t\tvar id = this.getLayerId(layer);\r\n\r\n\t\tthis._layers[id] = layer;\r\n\r\n\t\tif (this._map) {\r\n\t\t\tthis._map.addLayer(layer);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method removeLayer(layer: Layer): this\r\n\t// Removes the given layer from the group.\r\n\t// @alternative\r\n\t// @method removeLayer(id: Number): this\r\n\t// Removes the layer with the given internal ID from the group.\r\n\tremoveLayer: function (layer) {\r\n\t\tvar id = layer in this._layers ? layer : this.getLayerId(layer);\r\n\r\n\t\tif (this._map && this._layers[id]) {\r\n\t\t\tthis._map.removeLayer(this._layers[id]);\r\n\t\t}\r\n\r\n\t\tdelete this._layers[id];\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method hasLayer(layer: Layer): Boolean\r\n\t// Returns `true` if the given layer is currently added to the group.\r\n\thasLayer: function (layer) {\r\n\t\treturn !!layer && (layer in this._layers || this.getLayerId(layer) in this._layers);\r\n\t},\r\n\r\n\t// @method clearLayers(): this\r\n\t// Removes all the layers from the group.\r\n\tclearLayers: function () {\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tthis.removeLayer(this._layers[i]);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method invoke(methodName: String, …): this\r\n\t// Calls `methodName` on every layer contained in this group, passing any\r\n\t// additional parameters. Has no effect if the layers contained do not\r\n\t// implement `methodName`.\r\n\tinvoke: function (methodName) {\r\n\t\tvar args = Array.prototype.slice.call(arguments, 1),\r\n\t\t    i, layer;\r\n\r\n\t\tfor (i in this._layers) {\r\n\t\t\tlayer = this._layers[i];\r\n\r\n\t\t\tif (layer[methodName]) {\r\n\t\t\t\tlayer[methodName].apply(layer, args);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tmap.addLayer(this._layers[i]);\r\n\t\t}\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tmap.removeLayer(this._layers[i]);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method eachLayer(fn: Function, context?: Object): this\r\n\t// Iterates over the layers of the group, optionally specifying context of the iterator function.\r\n\t// ```js\r\n\t// group.eachLayer(function (layer) {\r\n\t// \tlayer.bindPopup('Hello');\r\n\t// });\r\n\t// ```\r\n\teachLayer: function (method, context) {\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tmethod.call(context, this._layers[i]);\r\n\t\t}\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getLayer(id: Number): Layer\r\n\t// Returns the layer with the given internal ID.\r\n\tgetLayer: function (id) {\r\n\t\treturn this._layers[id];\r\n\t},\r\n\r\n\t// @method getLayers(): Layer[]\r\n\t// Returns an array of all the layers added to the group.\r\n\tgetLayers: function () {\r\n\t\tvar layers = [];\r\n\r\n\t\tfor (var i in this._layers) {\r\n\t\t\tlayers.push(this._layers[i]);\r\n\t\t}\r\n\t\treturn layers;\r\n\t},\r\n\r\n\t// @method setZIndex(zIndex: Number): this\r\n\t// Calls `setZIndex` on every layer contained in this group, passing the z-index.\r\n\tsetZIndex: function (zIndex) {\r\n\t\treturn this.invoke('setZIndex', zIndex);\r\n\t},\r\n\r\n\t// @method getLayerId(layer: Layer): Number\r\n\t// Returns the internal ID for a layer\r\n\tgetLayerId: function (layer) {\r\n\t\treturn L.stamp(layer);\r\n\t}\r\n});\r\n\r\n\r\n// @factory L.layerGroup(layers: Layer[])\r\n// Create a layer group, optionally given an initial set of layers.\r\nL.layerGroup = function (layers) {\r\n\treturn new L.LayerGroup(layers);\r\n};\r\n\n\n\n/*\r\n * @class FeatureGroup\r\n * @aka L.FeatureGroup\r\n * @inherits LayerGroup\r\n *\r\n * Extended `LayerGroup` that makes it easier to do the same thing to all its member layers:\r\n *  * [`bindPopup`](#layer-bindpopup) binds a popup to all of the layers at once (likewise with [`bindTooltip`](#layer-bindtooltip))\r\n *  * Events are propagated to the `FeatureGroup`, so if the group has an event\r\n * handler, it will handle events from any of the layers. This includes mouse events\r\n * and custom events.\r\n *  * Has `layeradd` and `layerremove` events\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.featureGroup([marker1, marker2, polyline])\r\n * \t.bindPopup('Hello world!')\r\n * \t.on('click', function() { alert('Clicked on a member of the group!'); })\r\n * \t.addTo(map);\r\n * ```\r\n */\r\n\r\nL.FeatureGroup = L.LayerGroup.extend({\r\n\r\n\taddLayer: function (layer) {\r\n\t\tif (this.hasLayer(layer)) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tlayer.addEventParent(this);\r\n\r\n\t\tL.LayerGroup.prototype.addLayer.call(this, layer);\r\n\r\n\t\t// @event layeradd: LayerEvent\r\n\t\t// Fired when a layer is added to this `FeatureGroup`\r\n\t\treturn this.fire('layeradd', {layer: layer});\r\n\t},\r\n\r\n\tremoveLayer: function (layer) {\r\n\t\tif (!this.hasLayer(layer)) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\t\tif (layer in this._layers) {\r\n\t\t\tlayer = this._layers[layer];\r\n\t\t}\r\n\r\n\t\tlayer.removeEventParent(this);\r\n\r\n\t\tL.LayerGroup.prototype.removeLayer.call(this, layer);\r\n\r\n\t\t// @event layerremove: LayerEvent\r\n\t\t// Fired when a layer is removed from this `FeatureGroup`\r\n\t\treturn this.fire('layerremove', {layer: layer});\r\n\t},\r\n\r\n\t// @method setStyle(style: Path options): this\r\n\t// Sets the given path options to each layer of the group that has a `setStyle` method.\r\n\tsetStyle: function (style) {\r\n\t\treturn this.invoke('setStyle', style);\r\n\t},\r\n\r\n\t// @method bringToFront(): this\r\n\t// Brings the layer group to the top of all other layers\r\n\tbringToFront: function () {\r\n\t\treturn this.invoke('bringToFront');\r\n\t},\r\n\r\n\t// @method bringToBack(): this\r\n\t// Brings the layer group to the top of all other layers\r\n\tbringToBack: function () {\r\n\t\treturn this.invoke('bringToBack');\r\n\t},\r\n\r\n\t// @method getBounds(): LatLngBounds\r\n\t// Returns the LatLngBounds of the Feature Group (created from bounds and coordinates of its children).\r\n\tgetBounds: function () {\r\n\t\tvar bounds = new L.LatLngBounds();\r\n\r\n\t\tfor (var id in this._layers) {\r\n\t\t\tvar layer = this._layers[id];\r\n\t\t\tbounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng());\r\n\t\t}\r\n\t\treturn bounds;\r\n\t}\r\n});\r\n\r\n// @factory L.featureGroup(layers: Layer[])\r\n// Create a feature group, optionally given an initial set of layers.\r\nL.featureGroup = function (layers) {\r\n\treturn new L.FeatureGroup(layers);\r\n};\r\n\n\n\n/*\n * @class Renderer\n * @inherits Layer\n * @aka L.Renderer\n *\n * Base class for vector renderer implementations (`SVG`, `Canvas`). Handles the\n * DOM container of the renderer, its bounds, and its zoom animation.\n *\n * A `Renderer` works as an implicit layer group for all `Path`s - the renderer\n * itself can be added or removed to the map. All paths use a renderer, which can\n * be implicit (the map will decide the type of renderer and use it automatically)\n * or explicit (using the [`renderer`](#path-renderer) option of the path).\n *\n * Do not use this class directly, use `SVG` and `Canvas` instead.\n *\n * @event update: Event\n * Fired when the renderer updates its bounds, center and zoom, for example when\n * its map has moved\n */\n\nL.Renderer = L.Layer.extend({\n\n\t// @section\n\t// @aka Renderer options\n\toptions: {\n\t\t// @option padding: Number = 0.1\n\t\t// How much to extend the clip area around the map view (relative to its size)\n\t\t// e.g. 0.1 would be 10% of map view in each direction\n\t\tpadding: 0.1\n\t},\n\n\tinitialize: function (options) {\n\t\tL.setOptions(this, options);\n\t\tL.stamp(this);\n\t\tthis._layers = this._layers || {};\n\t},\n\n\tonAdd: function () {\n\t\tif (!this._container) {\n\t\t\tthis._initContainer(); // defined by renderer implementations\n\n\t\t\tif (this._zoomAnimated) {\n\t\t\t\tL.DomUtil.addClass(this._container, 'leaflet-zoom-animated');\n\t\t\t}\n\t\t}\n\n\t\tthis.getPane().appendChild(this._container);\n\t\tthis._update();\n\t\tthis.on('update', this._updatePaths, this);\n\t},\n\n\tonRemove: function () {\n\t\tL.DomUtil.remove(this._container);\n\t\tthis.off('update', this._updatePaths, this);\n\t},\n\n\tgetEvents: function () {\n\t\tvar events = {\n\t\t\tviewreset: this._reset,\n\t\t\tzoom: this._onZoom,\n\t\t\tmoveend: this._update,\n\t\t\tzoomend: this._onZoomEnd\n\t\t};\n\t\tif (this._zoomAnimated) {\n\t\t\tevents.zoomanim = this._onAnimZoom;\n\t\t}\n\t\treturn events;\n\t},\n\n\t_onAnimZoom: function (ev) {\n\t\tthis._updateTransform(ev.center, ev.zoom);\n\t},\n\n\t_onZoom: function () {\n\t\tthis._updateTransform(this._map.getCenter(), this._map.getZoom());\n\t},\n\n\t_updateTransform: function (center, zoom) {\n\t\tvar scale = this._map.getZoomScale(zoom, this._zoom),\n\t\t    position = L.DomUtil.getPosition(this._container),\n\t\t    viewHalf = this._map.getSize().multiplyBy(0.5 + this.options.padding),\n\t\t    currentCenterPoint = this._map.project(this._center, zoom),\n\t\t    destCenterPoint = this._map.project(center, zoom),\n\t\t    centerOffset = destCenterPoint.subtract(currentCenterPoint),\n\n\t\t    topLeftOffset = viewHalf.multiplyBy(-scale).add(position).add(viewHalf).subtract(centerOffset);\n\n\t\tif (L.Browser.any3d) {\n\t\t\tL.DomUtil.setTransform(this._container, topLeftOffset, scale);\n\t\t} else {\n\t\t\tL.DomUtil.setPosition(this._container, topLeftOffset);\n\t\t}\n\t},\n\n\t_reset: function () {\n\t\tthis._update();\n\t\tthis._updateTransform(this._center, this._zoom);\n\n\t\tfor (var id in this._layers) {\n\t\t\tthis._layers[id]._reset();\n\t\t}\n\t},\n\n\t_onZoomEnd: function () {\n\t\tfor (var id in this._layers) {\n\t\t\tthis._layers[id]._project();\n\t\t}\n\t},\n\n\t_updatePaths: function () {\n\t\tfor (var id in this._layers) {\n\t\t\tthis._layers[id]._update();\n\t\t}\n\t},\n\n\t_update: function () {\n\t\t// Update pixel bounds of renderer container (for positioning/sizing/clipping later)\n\t\t// Subclasses are responsible of firing the 'update' event.\n\t\tvar p = this.options.padding,\n\t\t    size = this._map.getSize(),\n\t\t    min = this._map.containerPointToLayerPoint(size.multiplyBy(-p)).round();\n\n\t\tthis._bounds = new L.Bounds(min, min.add(size.multiplyBy(1 + p * 2)).round());\n\n\t\tthis._center = this._map.getCenter();\n\t\tthis._zoom = this._map.getZoom();\n\t}\n});\n\n\nL.Map.include({\n\t// @namespace Map; @method getRenderer(layer: Path): Renderer\n\t// Returns the instance of `Renderer` that should be used to render the given\n\t// `Path`. It will ensure that the `renderer` options of the map and paths\n\t// are respected, and that the renderers do exist on the map.\n\tgetRenderer: function (layer) {\n\t\t// @namespace Path; @option renderer: Renderer\n\t\t// Use this specific instance of `Renderer` for this path. Takes\n\t\t// precedence over the map's [default renderer](#map-renderer).\n\t\tvar renderer = layer.options.renderer || this._getPaneRenderer(layer.options.pane) || this.options.renderer || this._renderer;\n\n\t\tif (!renderer) {\n\t\t\t// @namespace Map; @option preferCanvas: Boolean = false\n\t\t\t// Whether `Path`s should be rendered on a `Canvas` renderer.\n\t\t\t// By default, all `Path`s are rendered in a `SVG` renderer.\n\t\t\trenderer = this._renderer = (this.options.preferCanvas && L.canvas()) || L.svg();\n\t\t}\n\n\t\tif (!this.hasLayer(renderer)) {\n\t\t\tthis.addLayer(renderer);\n\t\t}\n\t\treturn renderer;\n\t},\n\n\t_getPaneRenderer: function (name) {\n\t\tif (name === 'overlayPane' || name === undefined) {\n\t\t\treturn false;\n\t\t}\n\n\t\tvar renderer = this._paneRenderers[name];\n\t\tif (renderer === undefined) {\n\t\t\trenderer = (L.SVG && L.svg({pane: name})) || (L.Canvas && L.canvas({pane: name}));\n\t\t\tthis._paneRenderers[name] = renderer;\n\t\t}\n\t\treturn renderer;\n\t}\n});\n\n\n\n/*\n * @class Path\n * @aka L.Path\n * @inherits Interactive layer\n *\n * An abstract class that contains options and constants shared between vector\n * overlays (Polygon, Polyline, Circle). Do not use it directly. Extends `Layer`.\n */\n\nL.Path = L.Layer.extend({\n\n\t// @section\n\t// @aka Path options\n\toptions: {\n\t\t// @option stroke: Boolean = true\n\t\t// Whether to draw stroke along the path. Set it to `false` to disable borders on polygons or circles.\n\t\tstroke: true,\n\n\t\t// @option color: String = '#3388ff'\n\t\t// Stroke color\n\t\tcolor: '#3388ff',\n\n\t\t// @option weight: Number = 3\n\t\t// Stroke width in pixels\n\t\tweight: 3,\n\n\t\t// @option opacity: Number = 1.0\n\t\t// Stroke opacity\n\t\topacity: 1,\n\n\t\t// @option lineCap: String= 'round'\n\t\t// A string that defines [shape to be used at the end](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linecap) of the stroke.\n\t\tlineCap: 'round',\n\n\t\t// @option lineJoin: String = 'round'\n\t\t// A string that defines [shape to be used at the corners](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linejoin) of the stroke.\n\t\tlineJoin: 'round',\n\n\t\t// @option dashArray: String = null\n\t\t// A string that defines the stroke [dash pattern](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dasharray). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).\n\t\tdashArray: null,\n\n\t\t// @option dashOffset: String = null\n\t\t// A string that defines the [distance into the dash pattern to start the dash](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dashoffset). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).\n\t\tdashOffset: null,\n\n\t\t// @option fill: Boolean = depends\n\t\t// Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles.\n\t\tfill: false,\n\n\t\t// @option fillColor: String = *\n\t\t// Fill color. Defaults to the value of the [`color`](#path-color) option\n\t\tfillColor: null,\n\n\t\t// @option fillOpacity: Number = 0.2\n\t\t// Fill opacity.\n\t\tfillOpacity: 0.2,\n\n\t\t// @option fillRule: String = 'evenodd'\n\t\t// A string that defines [how the inside of a shape](https://developer.mozilla.org/docs/Web/SVG/Attribute/fill-rule) is determined.\n\t\tfillRule: 'evenodd',\n\n\t\t// className: '',\n\n\t\t// Option inherited from \"Interactive layer\" abstract class\n\t\tinteractive: true\n\t},\n\n\tbeforeAdd: function (map) {\n\t\t// Renderer is set here because we need to call renderer.getEvents\n\t\t// before this.getEvents.\n\t\tthis._renderer = map.getRenderer(this);\n\t},\n\n\tonAdd: function () {\n\t\tthis._renderer._initPath(this);\n\t\tthis._reset();\n\t\tthis._renderer._addPath(this);\n\t},\n\n\tonRemove: function () {\n\t\tthis._renderer._removePath(this);\n\t},\n\n\t// @method redraw(): this\n\t// Redraws the layer. Sometimes useful after you changed the coordinates that the path uses.\n\tredraw: function () {\n\t\tif (this._map) {\n\t\t\tthis._renderer._updatePath(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method setStyle(style: Path options): this\n\t// Changes the appearance of a Path based on the options in the `Path options` object.\n\tsetStyle: function (style) {\n\t\tL.setOptions(this, style);\n\t\tif (this._renderer) {\n\t\t\tthis._renderer._updateStyle(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method bringToFront(): this\n\t// Brings the layer to the top of all path layers.\n\tbringToFront: function () {\n\t\tif (this._renderer) {\n\t\t\tthis._renderer._bringToFront(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\t// @method bringToBack(): this\n\t// Brings the layer to the bottom of all path layers.\n\tbringToBack: function () {\n\t\tif (this._renderer) {\n\t\t\tthis._renderer._bringToBack(this);\n\t\t}\n\t\treturn this;\n\t},\n\n\tgetElement: function () {\n\t\treturn this._path;\n\t},\n\n\t_reset: function () {\n\t\t// defined in children classes\n\t\tthis._project();\n\t\tthis._update();\n\t},\n\n\t_clickTolerance: function () {\n\t\t// used when doing hit detection for Canvas layers\n\t\treturn (this.options.stroke ? this.options.weight / 2 : 0) + (L.Browser.touch ? 10 : 0);\n\t}\n});\n\n\n\n/*\r\n * @namespace LineUtil\r\n *\r\n * Various utility functions for polyine points processing, used by Leaflet internally to make polylines lightning-fast.\r\n */\r\n\r\nL.LineUtil = {\r\n\r\n\t// Simplify polyline with vertex reduction and Douglas-Peucker simplification.\r\n\t// Improves rendering performance dramatically by lessening the number of points to draw.\r\n\r\n\t// @function simplify(points: Point[], tolerance: Number): Point[]\r\n\t// Dramatically reduces the number of points in a polyline while retaining\r\n\t// its shape and returns a new array of simplified points, using the\r\n\t// [Douglas-Peucker algorithm](http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm).\r\n\t// Used for a huge performance boost when processing/displaying Leaflet polylines for\r\n\t// each zoom level and also reducing visual noise. tolerance affects the amount of\r\n\t// simplification (lesser value means higher quality but slower and with more points).\r\n\t// Also released as a separated micro-library [Simplify.js](http://mourner.github.com/simplify-js/).\r\n\tsimplify: function (points, tolerance) {\r\n\t\tif (!tolerance || !points.length) {\r\n\t\t\treturn points.slice();\r\n\t\t}\r\n\r\n\t\tvar sqTolerance = tolerance * tolerance;\r\n\r\n\t\t// stage 1: vertex reduction\r\n\t\tpoints = this._reducePoints(points, sqTolerance);\r\n\r\n\t\t// stage 2: Douglas-Peucker simplification\r\n\t\tpoints = this._simplifyDP(points, sqTolerance);\r\n\r\n\t\treturn points;\r\n\t},\r\n\r\n\t// @function pointToSegmentDistance(p: Point, p1: Point, p2: Point): Number\r\n\t// Returns the distance between point `p` and segment `p1` to `p2`.\r\n\tpointToSegmentDistance:  function (p, p1, p2) {\r\n\t\treturn Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));\r\n\t},\r\n\r\n\t// @function closestPointOnSegment(p: Point, p1: Point, p2: Point): Number\r\n\t// Returns the closest point from a point `p` on a segment `p1` to `p2`.\r\n\tclosestPointOnSegment: function (p, p1, p2) {\r\n\t\treturn this._sqClosestPointOnSegment(p, p1, p2);\r\n\t},\r\n\r\n\t// Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm\r\n\t_simplifyDP: function (points, sqTolerance) {\r\n\r\n\t\tvar len = points.length,\r\n\t\t    ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,\r\n\t\t    markers = new ArrayConstructor(len);\r\n\r\n\t\tmarkers[0] = markers[len - 1] = 1;\r\n\r\n\t\tthis._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);\r\n\r\n\t\tvar i,\r\n\t\t    newPoints = [];\r\n\r\n\t\tfor (i = 0; i < len; i++) {\r\n\t\t\tif (markers[i]) {\r\n\t\t\t\tnewPoints.push(points[i]);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn newPoints;\r\n\t},\r\n\r\n\t_simplifyDPStep: function (points, markers, sqTolerance, first, last) {\r\n\r\n\t\tvar maxSqDist = 0,\r\n\t\t    index, i, sqDist;\r\n\r\n\t\tfor (i = first + 1; i <= last - 1; i++) {\r\n\t\t\tsqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);\r\n\r\n\t\t\tif (sqDist > maxSqDist) {\r\n\t\t\t\tindex = i;\r\n\t\t\t\tmaxSqDist = sqDist;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (maxSqDist > sqTolerance) {\r\n\t\t\tmarkers[index] = 1;\r\n\r\n\t\t\tthis._simplifyDPStep(points, markers, sqTolerance, first, index);\r\n\t\t\tthis._simplifyDPStep(points, markers, sqTolerance, index, last);\r\n\t\t}\r\n\t},\r\n\r\n\t// reduce points that are too close to each other to a single point\r\n\t_reducePoints: function (points, sqTolerance) {\r\n\t\tvar reducedPoints = [points[0]];\r\n\r\n\t\tfor (var i = 1, prev = 0, len = points.length; i < len; i++) {\r\n\t\t\tif (this._sqDist(points[i], points[prev]) > sqTolerance) {\r\n\t\t\t\treducedPoints.push(points[i]);\r\n\t\t\t\tprev = i;\r\n\t\t\t}\r\n\t\t}\r\n\t\tif (prev < len - 1) {\r\n\t\t\treducedPoints.push(points[len - 1]);\r\n\t\t}\r\n\t\treturn reducedPoints;\r\n\t},\r\n\r\n\r\n\t// @function clipSegment(a: Point, b: Point, bounds: Bounds, useLastCode?: Boolean, round?: Boolean): Point[]|Boolean\r\n\t// Clips the segment a to b by rectangular bounds with the\r\n\t// [Cohen-Sutherland algorithm](https://en.wikipedia.org/wiki/Cohen%E2%80%93Sutherland_algorithm)\r\n\t// (modifying the segment points directly!). Used by Leaflet to only show polyline\r\n\t// points that are on the screen or near, increasing performance.\r\n\tclipSegment: function (a, b, bounds, useLastCode, round) {\r\n\t\tvar codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),\r\n\t\t    codeB = this._getBitCode(b, bounds),\r\n\r\n\t\t    codeOut, p, newCode;\r\n\r\n\t\t// save 2nd code to avoid calculating it on the next segment\r\n\t\tthis._lastCode = codeB;\r\n\r\n\t\twhile (true) {\r\n\t\t\t// if a,b is inside the clip window (trivial accept)\r\n\t\t\tif (!(codeA | codeB)) {\r\n\t\t\t\treturn [a, b];\r\n\t\t\t}\r\n\r\n\t\t\t// if a,b is outside the clip window (trivial reject)\r\n\t\t\tif (codeA & codeB) {\r\n\t\t\t\treturn false;\r\n\t\t\t}\r\n\r\n\t\t\t// other cases\r\n\t\t\tcodeOut = codeA || codeB;\r\n\t\t\tp = this._getEdgeIntersection(a, b, codeOut, bounds, round);\r\n\t\t\tnewCode = this._getBitCode(p, bounds);\r\n\r\n\t\t\tif (codeOut === codeA) {\r\n\t\t\t\ta = p;\r\n\t\t\t\tcodeA = newCode;\r\n\t\t\t} else {\r\n\t\t\t\tb = p;\r\n\t\t\t\tcodeB = newCode;\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t_getEdgeIntersection: function (a, b, code, bounds, round) {\r\n\t\tvar dx = b.x - a.x,\r\n\t\t    dy = b.y - a.y,\r\n\t\t    min = bounds.min,\r\n\t\t    max = bounds.max,\r\n\t\t    x, y;\r\n\r\n\t\tif (code & 8) { // top\r\n\t\t\tx = a.x + dx * (max.y - a.y) / dy;\r\n\t\t\ty = max.y;\r\n\r\n\t\t} else if (code & 4) { // bottom\r\n\t\t\tx = a.x + dx * (min.y - a.y) / dy;\r\n\t\t\ty = min.y;\r\n\r\n\t\t} else if (code & 2) { // right\r\n\t\t\tx = max.x;\r\n\t\t\ty = a.y + dy * (max.x - a.x) / dx;\r\n\r\n\t\t} else if (code & 1) { // left\r\n\t\t\tx = min.x;\r\n\t\t\ty = a.y + dy * (min.x - a.x) / dx;\r\n\t\t}\r\n\r\n\t\treturn new L.Point(x, y, round);\r\n\t},\r\n\r\n\t_getBitCode: function (p, bounds) {\r\n\t\tvar code = 0;\r\n\r\n\t\tif (p.x < bounds.min.x) { // left\r\n\t\t\tcode |= 1;\r\n\t\t} else if (p.x > bounds.max.x) { // right\r\n\t\t\tcode |= 2;\r\n\t\t}\r\n\r\n\t\tif (p.y < bounds.min.y) { // bottom\r\n\t\t\tcode |= 4;\r\n\t\t} else if (p.y > bounds.max.y) { // top\r\n\t\t\tcode |= 8;\r\n\t\t}\r\n\r\n\t\treturn code;\r\n\t},\r\n\r\n\t// square distance (to avoid unnecessary Math.sqrt calls)\r\n\t_sqDist: function (p1, p2) {\r\n\t\tvar dx = p2.x - p1.x,\r\n\t\t    dy = p2.y - p1.y;\r\n\t\treturn dx * dx + dy * dy;\r\n\t},\r\n\r\n\t// return closest point on segment or distance to that point\r\n\t_sqClosestPointOnSegment: function (p, p1, p2, sqDist) {\r\n\t\tvar x = p1.x,\r\n\t\t    y = p1.y,\r\n\t\t    dx = p2.x - x,\r\n\t\t    dy = p2.y - y,\r\n\t\t    dot = dx * dx + dy * dy,\r\n\t\t    t;\r\n\r\n\t\tif (dot > 0) {\r\n\t\t\tt = ((p.x - x) * dx + (p.y - y) * dy) / dot;\r\n\r\n\t\t\tif (t > 1) {\r\n\t\t\t\tx = p2.x;\r\n\t\t\t\ty = p2.y;\r\n\t\t\t} else if (t > 0) {\r\n\t\t\t\tx += dx * t;\r\n\t\t\t\ty += dy * t;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tdx = p.x - x;\r\n\t\tdy = p.y - y;\r\n\r\n\t\treturn sqDist ? dx * dx + dy * dy : new L.Point(x, y);\r\n\t}\r\n};\r\n\n\n\n/*\n * @class Polyline\n * @aka L.Polyline\n * @inherits Path\n *\n * A class for drawing polyline overlays on a map. Extends `Path`.\n *\n * @example\n *\n * ```js\n * // create a red polyline from an array of LatLng points\n * var latlngs = [\n * \t[-122.68, 45.51],\n * \t[-122.43, 37.77],\n * \t[-118.2, 34.04]\n * ];\n *\n * var polyline = L.polyline(latlngs, {color: 'red'}).addTo(map);\n *\n * // zoom the map to the polyline\n * map.fitBounds(polyline.getBounds());\n * ```\n *\n * You can also pass a multi-dimensional array to represent a `MultiPolyline` shape:\n *\n * ```js\n * // create a red polyline from an array of arrays of LatLng points\n * var latlngs = [\n * \t[[-122.68, 45.51],\n * \t [-122.43, 37.77],\n * \t [-118.2, 34.04]],\n * \t[[-73.91, 40.78],\n * \t [-87.62, 41.83],\n * \t [-96.72, 32.76]]\n * ];\n * ```\n */\n\nL.Polyline = L.Path.extend({\n\n\t// @section\n\t// @aka Polyline options\n\toptions: {\n\t\t// @option smoothFactor: Number = 1.0\n\t\t// How much to simplify the polyline on each zoom level. More means\n\t\t// better performance and smoother look, and less means more accurate representation.\n\t\tsmoothFactor: 1.0,\n\n\t\t// @option noClip: Boolean = false\n\t\t// Disable polyline clipping.\n\t\tnoClip: false\n\t},\n\n\tinitialize: function (latlngs, options) {\n\t\tL.setOptions(this, options);\n\t\tthis._setLatLngs(latlngs);\n\t},\n\n\t// @method getLatLngs(): LatLng[]\n\t// Returns an array of the points in the path, or nested arrays of points in case of multi-polyline.\n\tgetLatLngs: function () {\n\t\treturn this._latlngs;\n\t},\n\n\t// @method setLatLngs(latlngs: LatLng[]): this\n\t// Replaces all the points in the polyline with the given array of geographical points.\n\tsetLatLngs: function (latlngs) {\n\t\tthis._setLatLngs(latlngs);\n\t\treturn this.redraw();\n\t},\n\n\t// @method isEmpty(): Boolean\n\t// Returns `true` if the Polyline has no LatLngs.\n\tisEmpty: function () {\n\t\treturn !this._latlngs.length;\n\t},\n\n\tclosestLayerPoint: function (p) {\n\t\tvar minDistance = Infinity,\n\t\t    minPoint = null,\n\t\t    closest = L.LineUtil._sqClosestPointOnSegment,\n\t\t    p1, p2;\n\n\t\tfor (var j = 0, jLen = this._parts.length; j < jLen; j++) {\n\t\t\tvar points = this._parts[j];\n\n\t\t\tfor (var i = 1, len = points.length; i < len; i++) {\n\t\t\t\tp1 = points[i - 1];\n\t\t\t\tp2 = points[i];\n\n\t\t\t\tvar sqDist = closest(p, p1, p2, true);\n\n\t\t\t\tif (sqDist < minDistance) {\n\t\t\t\t\tminDistance = sqDist;\n\t\t\t\t\tminPoint = closest(p, p1, p2);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif (minPoint) {\n\t\t\tminPoint.distance = Math.sqrt(minDistance);\n\t\t}\n\t\treturn minPoint;\n\t},\n\n\t// @method getCenter(): LatLng\n\t// Returns the center ([centroid](http://en.wikipedia.org/wiki/Centroid)) of the polyline.\n\tgetCenter: function () {\n\t\t// throws error when not yet added to map as this center calculation requires projected coordinates\n\t\tif (!this._map) {\n\t\t\tthrow new Error('Must add layer to map before using getCenter()');\n\t\t}\n\n\t\tvar i, halfDist, segDist, dist, p1, p2, ratio,\n\t\t    points = this._rings[0],\n\t\t    len = points.length;\n\n\t\tif (!len) { return null; }\n\n\t\t// polyline centroid algorithm; only uses the first ring if there are multiple\n\n\t\tfor (i = 0, halfDist = 0; i < len - 1; i++) {\n\t\t\thalfDist += points[i].distanceTo(points[i + 1]) / 2;\n\t\t}\n\n\t\t// The line is so small in the current view that all points are on the same pixel.\n\t\tif (halfDist === 0) {\n\t\t\treturn this._map.layerPointToLatLng(points[0]);\n\t\t}\n\n\t\tfor (i = 0, dist = 0; i < len - 1; i++) {\n\t\t\tp1 = points[i];\n\t\t\tp2 = points[i + 1];\n\t\t\tsegDist = p1.distanceTo(p2);\n\t\t\tdist += segDist;\n\n\t\t\tif (dist > halfDist) {\n\t\t\t\tratio = (dist - halfDist) / segDist;\n\t\t\t\treturn this._map.layerPointToLatLng([\n\t\t\t\t\tp2.x - ratio * (p2.x - p1.x),\n\t\t\t\t\tp2.y - ratio * (p2.y - p1.y)\n\t\t\t\t]);\n\t\t\t}\n\t\t}\n\t},\n\n\t// @method getBounds(): LatLngBounds\n\t// Returns the `LatLngBounds` of the path.\n\tgetBounds: function () {\n\t\treturn this._bounds;\n\t},\n\n\t// @method addLatLng(latlng: LatLng, latlngs? LatLng[]): this\n\t// Adds a given point to the polyline. By default, adds to the first ring of\n\t// the polyline in case of a multi-polyline, but can be overridden by passing\n\t// a specific ring as a LatLng array (that you can earlier access with [`getLatLngs`](#polyline-getlatlngs)).\n\taddLatLng: function (latlng, latlngs) {\n\t\tlatlngs = latlngs || this._defaultShape();\n\t\tlatlng = L.latLng(latlng);\n\t\tlatlngs.push(latlng);\n\t\tthis._bounds.extend(latlng);\n\t\treturn this.redraw();\n\t},\n\n\t_setLatLngs: function (latlngs) {\n\t\tthis._bounds = new L.LatLngBounds();\n\t\tthis._latlngs = this._convertLatLngs(latlngs);\n\t},\n\n\t_defaultShape: function () {\n\t\treturn L.Polyline._flat(this._latlngs) ? this._latlngs : this._latlngs[0];\n\t},\n\n\t// recursively convert latlngs input into actual LatLng instances; calculate bounds along the way\n\t_convertLatLngs: function (latlngs) {\n\t\tvar result = [],\n\t\t    flat = L.Polyline._flat(latlngs);\n\n\t\tfor (var i = 0, len = latlngs.length; i < len; i++) {\n\t\t\tif (flat) {\n\t\t\t\tresult[i] = L.latLng(latlngs[i]);\n\t\t\t\tthis._bounds.extend(result[i]);\n\t\t\t} else {\n\t\t\t\tresult[i] = this._convertLatLngs(latlngs[i]);\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t},\n\n\t_project: function () {\n\t\tvar pxBounds = new L.Bounds();\n\t\tthis._rings = [];\n\t\tthis._projectLatlngs(this._latlngs, this._rings, pxBounds);\n\n\t\tvar w = this._clickTolerance(),\n\t\t    p = new L.Point(w, w);\n\n\t\tif (this._bounds.isValid() && pxBounds.isValid()) {\n\t\t\tpxBounds.min._subtract(p);\n\t\t\tpxBounds.max._add(p);\n\t\t\tthis._pxBounds = pxBounds;\n\t\t}\n\t},\n\n\t// recursively turns latlngs into a set of rings with projected coordinates\n\t_projectLatlngs: function (latlngs, result, projectedBounds) {\n\t\tvar flat = latlngs[0] instanceof L.LatLng,\n\t\t    len = latlngs.length,\n\t\t    i, ring;\n\n\t\tif (flat) {\n\t\t\tring = [];\n\t\t\tfor (i = 0; i < len; i++) {\n\t\t\t\tring[i] = this._map.latLngToLayerPoint(latlngs[i]);\n\t\t\t\tprojectedBounds.extend(ring[i]);\n\t\t\t}\n\t\t\tresult.push(ring);\n\t\t} else {\n\t\t\tfor (i = 0; i < len; i++) {\n\t\t\t\tthis._projectLatlngs(latlngs[i], result, projectedBounds);\n\t\t\t}\n\t\t}\n\t},\n\n\t// clip polyline by renderer bounds so that we have less to render for performance\n\t_clipPoints: function () {\n\t\tvar bounds = this._renderer._bounds;\n\n\t\tthis._parts = [];\n\t\tif (!this._pxBounds || !this._pxBounds.intersects(bounds)) {\n\t\t\treturn;\n\t\t}\n\n\t\tif (this.options.noClip) {\n\t\t\tthis._parts = this._rings;\n\t\t\treturn;\n\t\t}\n\n\t\tvar parts = this._parts,\n\t\t    i, j, k, len, len2, segment, points;\n\n\t\tfor (i = 0, k = 0, len = this._rings.length; i < len; i++) {\n\t\t\tpoints = this._rings[i];\n\n\t\t\tfor (j = 0, len2 = points.length; j < len2 - 1; j++) {\n\t\t\t\tsegment = L.LineUtil.clipSegment(points[j], points[j + 1], bounds, j, true);\n\n\t\t\t\tif (!segment) { continue; }\n\n\t\t\t\tparts[k] = parts[k] || [];\n\t\t\t\tparts[k].push(segment[0]);\n\n\t\t\t\t// if segment goes out of screen, or it's the last one, it's the end of the line part\n\t\t\t\tif ((segment[1] !== points[j + 1]) || (j === len2 - 2)) {\n\t\t\t\t\tparts[k].push(segment[1]);\n\t\t\t\t\tk++;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\t// simplify each clipped part of the polyline for performance\n\t_simplifyPoints: function () {\n\t\tvar parts = this._parts,\n\t\t    tolerance = this.options.smoothFactor;\n\n\t\tfor (var i = 0, len = parts.length; i < len; i++) {\n\t\t\tparts[i] = L.LineUtil.simplify(parts[i], tolerance);\n\t\t}\n\t},\n\n\t_update: function () {\n\t\tif (!this._map) { return; }\n\n\t\tthis._clipPoints();\n\t\tthis._simplifyPoints();\n\t\tthis._updatePath();\n\t},\n\n\t_updatePath: function () {\n\t\tthis._renderer._updatePoly(this);\n\t}\n});\n\n// @factory L.polyline(latlngs: LatLng[], options?: Polyline options)\n// Instantiates a polyline object given an array of geographical points and\n// optionally an options object. You can create a `Polyline` object with\n// multiple separate lines (`MultiPolyline`) by passing an array of arrays\n// of geographic points.\nL.polyline = function (latlngs, options) {\n\treturn new L.Polyline(latlngs, options);\n};\n\nL.Polyline._flat = function (latlngs) {\n\t// true if it's a flat array of latlngs; false if nested\n\treturn !L.Util.isArray(latlngs[0]) || (typeof latlngs[0][0] !== 'object' && typeof latlngs[0][0] !== 'undefined');\n};\n\n\n\n/*\r\n * @namespace PolyUtil\r\n * Various utility functions for polygon geometries.\r\n */\r\n\r\nL.PolyUtil = {};\r\n\r\n/* @function clipPolygon(points: Point[], bounds: Bounds, round?: Boolean): Point[]\r\n * Clips the polygon geometry defined by the given `points` by the given bounds (using the [Sutherland-Hodgeman algorithm](https://en.wikipedia.org/wiki/Sutherland%E2%80%93Hodgman_algorithm)).\r\n * Used by Leaflet to only show polygon points that are on the screen or near, increasing\r\n * performance. Note that polygon points needs different algorithm for clipping\r\n * than polyline, so there's a seperate method for it.\r\n */\r\nL.PolyUtil.clipPolygon = function (points, bounds, round) {\r\n\tvar clippedPoints,\r\n\t    edges = [1, 4, 2, 8],\r\n\t    i, j, k,\r\n\t    a, b,\r\n\t    len, edge, p,\r\n\t    lu = L.LineUtil;\r\n\r\n\tfor (i = 0, len = points.length; i < len; i++) {\r\n\t\tpoints[i]._code = lu._getBitCode(points[i], bounds);\r\n\t}\r\n\r\n\t// for each edge (left, bottom, right, top)\r\n\tfor (k = 0; k < 4; k++) {\r\n\t\tedge = edges[k];\r\n\t\tclippedPoints = [];\r\n\r\n\t\tfor (i = 0, len = points.length, j = len - 1; i < len; j = i++) {\r\n\t\t\ta = points[i];\r\n\t\t\tb = points[j];\r\n\r\n\t\t\t// if a is inside the clip window\r\n\t\t\tif (!(a._code & edge)) {\r\n\t\t\t\t// if b is outside the clip window (a->b goes out of screen)\r\n\t\t\t\tif (b._code & edge) {\r\n\t\t\t\t\tp = lu._getEdgeIntersection(b, a, edge, bounds, round);\r\n\t\t\t\t\tp._code = lu._getBitCode(p, bounds);\r\n\t\t\t\t\tclippedPoints.push(p);\r\n\t\t\t\t}\r\n\t\t\t\tclippedPoints.push(a);\r\n\r\n\t\t\t// else if b is inside the clip window (a->b enters the screen)\r\n\t\t\t} else if (!(b._code & edge)) {\r\n\t\t\t\tp = lu._getEdgeIntersection(b, a, edge, bounds, round);\r\n\t\t\t\tp._code = lu._getBitCode(p, bounds);\r\n\t\t\t\tclippedPoints.push(p);\r\n\t\t\t}\r\n\t\t}\r\n\t\tpoints = clippedPoints;\r\n\t}\r\n\r\n\treturn points;\r\n};\r\n\n\n\n/*\n * @class Polygon\n * @aka L.Polygon\n * @inherits Polyline\n *\n * A class for drawing polygon overlays on a map. Extends `Polyline`.\n *\n * Note that points you pass when creating a polygon shouldn't have an additional last point equal to the first one — it's better to filter out such points.\n *\n *\n * @example\n *\n * ```js\n * // create a red polygon from an array of LatLng points\n * var latlngs = [[-111.03, 41],[-111.04, 45],[-104.05, 45],[-104.05, 41]];\n *\n * var polygon = L.polygon(latlngs, {color: 'red'}).addTo(map);\n *\n * // zoom the map to the polygon\n * map.fitBounds(polygon.getBounds());\n * ```\n *\n * You can also pass an array of arrays of latlngs, with the first array representing the outer shape and the other arrays representing holes in the outer shape:\n *\n * ```js\n * var latlngs = [\n *   [[-111.03, 41],[-111.04, 45],[-104.05, 45],[-104.05, 41]], // outer ring\n *   [[-108.58,37.29],[-108.58,40.71],[-102.50,40.71],[-102.50,37.29]] // hole\n * ];\n * ```\n *\n * Additionally, you can pass a multi-dimensional array to represent a MultiPolygon shape.\n *\n * ```js\n * var latlngs = [\n *   [ // first polygon\n *     [[-111.03, 41],[-111.04, 45],[-104.05, 45],[-104.05, 41]], // outer ring\n *     [[-108.58,37.29],[-108.58,40.71],[-102.50,40.71],[-102.50,37.29]] // hole\n *   ],\n *   [ // second polygon\n *     [[-109.05, 37],[-109.03, 41],[-102.05, 41],[-102.04, 37],[-109.05, 38]]\n *   ]\n * ];\n * ```\n */\n\nL.Polygon = L.Polyline.extend({\n\n\toptions: {\n\t\tfill: true\n\t},\n\n\tisEmpty: function () {\n\t\treturn !this._latlngs.length || !this._latlngs[0].length;\n\t},\n\n\tgetCenter: function () {\n\t\t// throws error when not yet added to map as this center calculation requires projected coordinates\n\t\tif (!this._map) {\n\t\t\tthrow new Error('Must add layer to map before using getCenter()');\n\t\t}\n\n\t\tvar i, j, p1, p2, f, area, x, y, center,\n\t\t    points = this._rings[0],\n\t\t    len = points.length;\n\n\t\tif (!len) { return null; }\n\n\t\t// polygon centroid algorithm; only uses the first ring if there are multiple\n\n\t\tarea = x = y = 0;\n\n\t\tfor (i = 0, j = len - 1; i < len; j = i++) {\n\t\t\tp1 = points[i];\n\t\t\tp2 = points[j];\n\n\t\t\tf = p1.y * p2.x - p2.y * p1.x;\n\t\t\tx += (p1.x + p2.x) * f;\n\t\t\ty += (p1.y + p2.y) * f;\n\t\t\tarea += f * 3;\n\t\t}\n\n\t\tif (area === 0) {\n\t\t\t// Polygon is so small that all points are on same pixel.\n\t\t\tcenter = points[0];\n\t\t} else {\n\t\t\tcenter = [x / area, y / area];\n\t\t}\n\t\treturn this._map.layerPointToLatLng(center);\n\t},\n\n\t_convertLatLngs: function (latlngs) {\n\t\tvar result = L.Polyline.prototype._convertLatLngs.call(this, latlngs),\n\t\t    len = result.length;\n\n\t\t// remove last point if it equals first one\n\t\tif (len >= 2 && result[0] instanceof L.LatLng && result[0].equals(result[len - 1])) {\n\t\t\tresult.pop();\n\t\t}\n\t\treturn result;\n\t},\n\n\t_setLatLngs: function (latlngs) {\n\t\tL.Polyline.prototype._setLatLngs.call(this, latlngs);\n\t\tif (L.Polyline._flat(this._latlngs)) {\n\t\t\tthis._latlngs = [this._latlngs];\n\t\t}\n\t},\n\n\t_defaultShape: function () {\n\t\treturn L.Polyline._flat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0];\n\t},\n\n\t_clipPoints: function () {\n\t\t// polygons need a different clipping algorithm so we redefine that\n\n\t\tvar bounds = this._renderer._bounds,\n\t\t    w = this.options.weight,\n\t\t    p = new L.Point(w, w);\n\n\t\t// increase clip padding by stroke width to avoid stroke on clip edges\n\t\tbounds = new L.Bounds(bounds.min.subtract(p), bounds.max.add(p));\n\n\t\tthis._parts = [];\n\t\tif (!this._pxBounds || !this._pxBounds.intersects(bounds)) {\n\t\t\treturn;\n\t\t}\n\n\t\tif (this.options.noClip) {\n\t\t\tthis._parts = this._rings;\n\t\t\treturn;\n\t\t}\n\n\t\tfor (var i = 0, len = this._rings.length, clipped; i < len; i++) {\n\t\t\tclipped = L.PolyUtil.clipPolygon(this._rings[i], bounds, true);\n\t\t\tif (clipped.length) {\n\t\t\t\tthis._parts.push(clipped);\n\t\t\t}\n\t\t}\n\t},\n\n\t_updatePath: function () {\n\t\tthis._renderer._updatePoly(this, true);\n\t}\n});\n\n\n// @factory L.polygon(latlngs: LatLng[], options?: Polyline options)\nL.polygon = function (latlngs, options) {\n\treturn new L.Polygon(latlngs, options);\n};\n\n\n\n/*\n * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.\n */\n\n/*\n * @class Rectangle\n * @aka L.Retangle\n * @inherits Polygon\n *\n * A class for drawing rectangle overlays on a map. Extends `Polygon`.\n *\n * @example\n *\n * ```js\n * // define rectangle geographical bounds\n * var bounds = [[54.559322, -5.767822], [56.1210604, -3.021240]];\n *\n * // create an orange rectangle\n * L.rectangle(bounds, {color: \"#ff7800\", weight: 1}).addTo(map);\n *\n * // zoom the map to the rectangle bounds\n * map.fitBounds(bounds);\n * ```\n *\n */\n\n\nL.Rectangle = L.Polygon.extend({\n\tinitialize: function (latLngBounds, options) {\n\t\tL.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);\n\t},\n\n\t// @method setBounds(latLngBounds: LatLngBounds): this\n\t// Redraws the rectangle with the passed bounds.\n\tsetBounds: function (latLngBounds) {\n\t\treturn this.setLatLngs(this._boundsToLatLngs(latLngBounds));\n\t},\n\n\t_boundsToLatLngs: function (latLngBounds) {\n\t\tlatLngBounds = L.latLngBounds(latLngBounds);\n\t\treturn [\n\t\t\tlatLngBounds.getSouthWest(),\n\t\t\tlatLngBounds.getNorthWest(),\n\t\t\tlatLngBounds.getNorthEast(),\n\t\t\tlatLngBounds.getSouthEast()\n\t\t];\n\t}\n});\n\n\n// @factory L.rectangle(latLngBounds: LatLngBounds, options?: Polyline options)\nL.rectangle = function (latLngBounds, options) {\n\treturn new L.Rectangle(latLngBounds, options);\n};\n\n\n\n/*\n * @class CircleMarker\n * @aka L.CircleMarker\n * @inherits Path\n *\n * A circle of a fixed size with radius specified in pixels. Extends `Path`.\n */\n\nL.CircleMarker = L.Path.extend({\n\n\t// @section\n\t// @aka CircleMarker options\n\toptions: {\n\t\tfill: true,\n\n\t\t// @option radius: Number = 10\n\t\t// Radius of the circle marker, in pixels\n\t\tradius: 10\n\t},\n\n\tinitialize: function (latlng, options) {\n\t\tL.setOptions(this, options);\n\t\tthis._latlng = L.latLng(latlng);\n\t\tthis._radius = this.options.radius;\n\t},\n\n\t// @method setLatLng(latLng: LatLng): this\n\t// Sets the position of a circle marker to a new location.\n\tsetLatLng: function (latlng) {\n\t\tthis._latlng = L.latLng(latlng);\n\t\tthis.redraw();\n\t\treturn this.fire('move', {latlng: this._latlng});\n\t},\n\n\t// @method getLatLng(): LatLng\n\t// Returns the current geographical position of the circle marker\n\tgetLatLng: function () {\n\t\treturn this._latlng;\n\t},\n\n\t// @method setRadius(radius: Number): this\n\t// Sets the radius of a circle marker. Units are in pixels.\n\tsetRadius: function (radius) {\n\t\tthis.options.radius = this._radius = radius;\n\t\treturn this.redraw();\n\t},\n\n\t// @method getRadius(): Number\n\t// Returns the current radius of the circle\n\tgetRadius: function () {\n\t\treturn this._radius;\n\t},\n\n\tsetStyle : function (options) {\n\t\tvar radius = options && options.radius || this._radius;\n\t\tL.Path.prototype.setStyle.call(this, options);\n\t\tthis.setRadius(radius);\n\t\treturn this;\n\t},\n\n\t_project: function () {\n\t\tthis._point = this._map.latLngToLayerPoint(this._latlng);\n\t\tthis._updateBounds();\n\t},\n\n\t_updateBounds: function () {\n\t\tvar r = this._radius,\n\t\t    r2 = this._radiusY || r,\n\t\t    w = this._clickTolerance(),\n\t\t    p = [r + w, r2 + w];\n\t\tthis._pxBounds = new L.Bounds(this._point.subtract(p), this._point.add(p));\n\t},\n\n\t_update: function () {\n\t\tif (this._map) {\n\t\t\tthis._updatePath();\n\t\t}\n\t},\n\n\t_updatePath: function () {\n\t\tthis._renderer._updateCircle(this);\n\t},\n\n\t_empty: function () {\n\t\treturn this._radius && !this._renderer._bounds.intersects(this._pxBounds);\n\t}\n});\n\n\n// @factory L.circleMarker(latlng: LatLng, options?: CircleMarker options)\n// Instantiates a circle marker object given a geographical point, and an optional options object.\nL.circleMarker = function (latlng, options) {\n\treturn new L.CircleMarker(latlng, options);\n};\n\n\n\n/*\n * @class Circle\n * @aka L.Circle\n * @inherits CircleMarker\n *\n * A class for drawing circle overlays on a map. Extends `CircleMarker`.\n *\n * It's an approximation and starts to diverge from a real circle closer to poles (due to projection distortion).\n *\n * @example\n *\n * ```js\n * L.circle([50.5, 30.5], {radius: 200}).addTo(map);\n * ```\n */\n\nL.Circle = L.CircleMarker.extend({\n\n\tinitialize: function (latlng, options, legacyOptions) {\n\t\tif (typeof options === 'number') {\n\t\t\t// Backwards compatibility with 0.7.x factory (latlng, radius, options?)\n\t\t\toptions = L.extend({}, legacyOptions, {radius: options});\n\t\t}\n\t\tL.setOptions(this, options);\n\t\tthis._latlng = L.latLng(latlng);\n\n\t\tif (isNaN(this.options.radius)) { throw new Error('Circle radius cannot be NaN'); }\n\n\t\t// @section\n\t\t// @aka Circle options\n\t\t// @option radius: Number; Radius of the circle, in meters.\n\t\tthis._mRadius = this.options.radius;\n\t},\n\n\t// @method setRadius(radius: Number): this\n\t// Sets the radius of a circle. Units are in meters.\n\tsetRadius: function (radius) {\n\t\tthis._mRadius = radius;\n\t\treturn this.redraw();\n\t},\n\n\t// @method getRadius(): Number\n\t// Returns the current radius of a circle. Units are in meters.\n\tgetRadius: function () {\n\t\treturn this._mRadius;\n\t},\n\n\t// @method getBounds(): LatLngBounds\n\t// Returns the `LatLngBounds` of the path.\n\tgetBounds: function () {\n\t\tvar half = [this._radius, this._radiusY || this._radius];\n\n\t\treturn new L.LatLngBounds(\n\t\t\tthis._map.layerPointToLatLng(this._point.subtract(half)),\n\t\t\tthis._map.layerPointToLatLng(this._point.add(half)));\n\t},\n\n\tsetStyle: L.Path.prototype.setStyle,\n\n\t_project: function () {\n\n\t\tvar lng = this._latlng.lng,\n\t\t    lat = this._latlng.lat,\n\t\t    map = this._map,\n\t\t    crs = map.options.crs;\n\n\t\tif (crs.distance === L.CRS.Earth.distance) {\n\t\t\tvar d = Math.PI / 180,\n\t\t\t    latR = (this._mRadius / L.CRS.Earth.R) / d,\n\t\t\t    top = map.project([lat + latR, lng]),\n\t\t\t    bottom = map.project([lat - latR, lng]),\n\t\t\t    p = top.add(bottom).divideBy(2),\n\t\t\t    lat2 = map.unproject(p).lat,\n\t\t\t    lngR = Math.acos((Math.cos(latR * d) - Math.sin(lat * d) * Math.sin(lat2 * d)) /\n\t\t\t            (Math.cos(lat * d) * Math.cos(lat2 * d))) / d;\n\n\t\t\tif (isNaN(lngR) || lngR === 0) {\n\t\t\t\tlngR = latR / Math.cos(Math.PI / 180 * lat); // Fallback for edge case, #2425\n\t\t\t}\n\n\t\t\tthis._point = p.subtract(map.getPixelOrigin());\n\t\t\tthis._radius = isNaN(lngR) ? 0 : Math.max(Math.round(p.x - map.project([lat2, lng - lngR]).x), 1);\n\t\t\tthis._radiusY = Math.max(Math.round(p.y - top.y), 1);\n\n\t\t} else {\n\t\t\tvar latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0]));\n\n\t\t\tthis._point = map.latLngToLayerPoint(this._latlng);\n\t\t\tthis._radius = this._point.x - map.latLngToLayerPoint(latlng2).x;\n\t\t}\n\n\t\tthis._updateBounds();\n\t}\n});\n\n// @factory L.circle(latlng: LatLng, options?: Circle options)\n// Instantiates a circle object given a geographical point, and an options object\n// which contains the circle radius.\n// @alternative\n// @factory L.circle(latlng: LatLng, radius: Number, options?: Circle options)\n// Obsolete way of instantiating a circle, for compatibility with 0.7.x code.\n// Do not use in new applications or plugins.\nL.circle = function (latlng, options, legacyOptions) {\n\treturn new L.Circle(latlng, options, legacyOptions);\n};\n\n\n\n/*\n * @class SVG\n * @inherits Renderer\n * @aka L.SVG\n *\n * Allows vector layers to be displayed with [SVG](https://developer.mozilla.org/docs/Web/SVG).\n * Inherits `Renderer`.\n *\n * Due to [technical limitations](http://caniuse.com/#search=svg), SVG is not\n * available in all web browsers, notably Android 2.x and 3.x.\n *\n * Although SVG is not available on IE7 and IE8, these browsers support\n * [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language)\n * (a now deprecated technology), and the SVG renderer will fall back to VML in\n * this case.\n *\n * @example\n *\n * Use SVG by default for all paths in the map:\n *\n * ```js\n * var map = L.map('map', {\n * \trenderer: L.svg()\n * });\n * ```\n *\n * Use a SVG renderer with extra padding for specific vector geometries:\n *\n * ```js\n * var map = L.map('map');\n * var myRenderer = L.svg({ padding: 0.5 });\n * var line = L.polyline( coordinates, { renderer: myRenderer } );\n * var circle = L.circle( center, { renderer: myRenderer } );\n * ```\n */\n\nL.SVG = L.Renderer.extend({\n\n\tgetEvents: function () {\n\t\tvar events = L.Renderer.prototype.getEvents.call(this);\n\t\tevents.zoomstart = this._onZoomStart;\n\t\treturn events;\n\t},\n\n\t_initContainer: function () {\n\t\tthis._container = L.SVG.create('svg');\n\n\t\t// makes it possible to click through svg root; we'll reset it back in individual paths\n\t\tthis._container.setAttribute('pointer-events', 'none');\n\n\t\tthis._rootGroup = L.SVG.create('g');\n\t\tthis._container.appendChild(this._rootGroup);\n\t},\n\n\t_onZoomStart: function () {\n\t\t// Drag-then-pinch interactions might mess up the center and zoom.\n\t\t// In this case, the easiest way to prevent this is re-do the renderer\n\t\t//   bounds and padding when the zooming starts.\n\t\tthis._update();\n\t},\n\n\t_update: function () {\n\t\tif (this._map._animatingZoom && this._bounds) { return; }\n\n\t\tL.Renderer.prototype._update.call(this);\n\n\t\tvar b = this._bounds,\n\t\t    size = b.getSize(),\n\t\t    container = this._container;\n\n\t\t// set size of svg-container if changed\n\t\tif (!this._svgSize || !this._svgSize.equals(size)) {\n\t\t\tthis._svgSize = size;\n\t\t\tcontainer.setAttribute('width', size.x);\n\t\t\tcontainer.setAttribute('height', size.y);\n\t\t}\n\n\t\t// movement: update container viewBox so that we don't have to change coordinates of individual layers\n\t\tL.DomUtil.setPosition(container, b.min);\n\t\tcontainer.setAttribute('viewBox', [b.min.x, b.min.y, size.x, size.y].join(' '));\n\n\t\tthis.fire('update');\n\t},\n\n\t// methods below are called by vector layers implementations\n\n\t_initPath: function (layer) {\n\t\tvar path = layer._path = L.SVG.create('path');\n\n\t\t// @namespace Path\n\t\t// @option className: String = null\n\t\t// Custom class name set on an element. Only for SVG renderer.\n\t\tif (layer.options.className) {\n\t\t\tL.DomUtil.addClass(path, layer.options.className);\n\t\t}\n\n\t\tif (layer.options.interactive) {\n\t\t\tL.DomUtil.addClass(path, 'leaflet-interactive');\n\t\t}\n\n\t\tthis._updateStyle(layer);\n\t\tthis._layers[L.stamp(layer)] = layer;\n\t},\n\n\t_addPath: function (layer) {\n\t\tthis._rootGroup.appendChild(layer._path);\n\t\tlayer.addInteractiveTarget(layer._path);\n\t},\n\n\t_removePath: function (layer) {\n\t\tL.DomUtil.remove(layer._path);\n\t\tlayer.removeInteractiveTarget(layer._path);\n\t\tdelete this._layers[L.stamp(layer)];\n\t},\n\n\t_updatePath: function (layer) {\n\t\tlayer._project();\n\t\tlayer._update();\n\t},\n\n\t_updateStyle: function (layer) {\n\t\tvar path = layer._path,\n\t\t    options = layer.options;\n\n\t\tif (!path) { return; }\n\n\t\tif (options.stroke) {\n\t\t\tpath.setAttribute('stroke', options.color);\n\t\t\tpath.setAttribute('stroke-opacity', options.opacity);\n\t\t\tpath.setAttribute('stroke-width', options.weight);\n\t\t\tpath.setAttribute('stroke-linecap', options.lineCap);\n\t\t\tpath.setAttribute('stroke-linejoin', options.lineJoin);\n\n\t\t\tif (options.dashArray) {\n\t\t\t\tpath.setAttribute('stroke-dasharray', options.dashArray);\n\t\t\t} else {\n\t\t\t\tpath.removeAttribute('stroke-dasharray');\n\t\t\t}\n\n\t\t\tif (options.dashOffset) {\n\t\t\t\tpath.setAttribute('stroke-dashoffset', options.dashOffset);\n\t\t\t} else {\n\t\t\t\tpath.removeAttribute('stroke-dashoffset');\n\t\t\t}\n\t\t} else {\n\t\t\tpath.setAttribute('stroke', 'none');\n\t\t}\n\n\t\tif (options.fill) {\n\t\t\tpath.setAttribute('fill', options.fillColor || options.color);\n\t\t\tpath.setAttribute('fill-opacity', options.fillOpacity);\n\t\t\tpath.setAttribute('fill-rule', options.fillRule || 'evenodd');\n\t\t} else {\n\t\t\tpath.setAttribute('fill', 'none');\n\t\t}\n\t},\n\n\t_updatePoly: function (layer, closed) {\n\t\tthis._setPath(layer, L.SVG.pointsToPath(layer._parts, closed));\n\t},\n\n\t_updateCircle: function (layer) {\n\t\tvar p = layer._point,\n\t\t    r = layer._radius,\n\t\t    r2 = layer._radiusY || r,\n\t\t    arc = 'a' + r + ',' + r2 + ' 0 1,0 ';\n\n\t\t// drawing a circle with two half-arcs\n\t\tvar d = layer._empty() ? 'M0 0' :\n\t\t\t\t'M' + (p.x - r) + ',' + p.y +\n\t\t\t\tarc + (r * 2) + ',0 ' +\n\t\t\t\tarc + (-r * 2) + ',0 ';\n\n\t\tthis._setPath(layer, d);\n\t},\n\n\t_setPath: function (layer, path) {\n\t\tlayer._path.setAttribute('d', path);\n\t},\n\n\t// SVG does not have the concept of zIndex so we resort to changing the DOM order of elements\n\t_bringToFront: function (layer) {\n\t\tL.DomUtil.toFront(layer._path);\n\t},\n\n\t_bringToBack: function (layer) {\n\t\tL.DomUtil.toBack(layer._path);\n\t}\n});\n\n\n// @namespace SVG; @section\n// There are several static functions which can be called without instantiating L.SVG:\nL.extend(L.SVG, {\n\t// @function create(name: String): SVGElement\n\t// Returns a instance of [SVGElement](https://developer.mozilla.org/docs/Web/API/SVGElement),\n\t// corresponding to the class name passed. For example, using 'line' will return\n\t// an instance of [SVGLineElement](https://developer.mozilla.org/docs/Web/API/SVGLineElement).\n\tcreate: function (name) {\n\t\treturn document.createElementNS('http://www.w3.org/2000/svg', name);\n\t},\n\n\t// @function pointsToPath(rings: Point[], closed: Boolean): String\n\t// Generates a SVG path string for multiple rings, with each ring turning\n\t// into \"M..L..L..\" instructions\n\tpointsToPath: function (rings, closed) {\n\t\tvar str = '',\n\t\t    i, j, len, len2, points, p;\n\n\t\tfor (i = 0, len = rings.length; i < len; i++) {\n\t\t\tpoints = rings[i];\n\n\t\t\tfor (j = 0, len2 = points.length; j < len2; j++) {\n\t\t\t\tp = points[j];\n\t\t\t\tstr += (j ? 'L' : 'M') + p.x + ' ' + p.y;\n\t\t\t}\n\n\t\t\t// closes the ring for polygons; \"x\" is VML syntax\n\t\t\tstr += closed ? (L.Browser.svg ? 'z' : 'x') : '';\n\t\t}\n\n\t\t// SVG complains about empty path strings\n\t\treturn str || 'M0 0';\n\t}\n});\n\n// @namespace Browser; @property svg: Boolean\n// `true` when the browser supports [SVG](https://developer.mozilla.org/docs/Web/SVG).\nL.Browser.svg = !!(document.createElementNS && L.SVG.create('svg').createSVGRect);\n\n\n// @namespace SVG\n// @factory L.svg(options?: Renderer options)\n// Creates a SVG renderer with the given options.\nL.svg = function (options) {\n\treturn L.Browser.svg || L.Browser.vml ? new L.SVG(options) : null;\n};\n\n\n\n/*\n * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!\n */\n\n/*\n * @class SVG\n *\n * Although SVG is not available on IE7 and IE8, these browsers support [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language), and the SVG renderer will fall back to VML in this case.\n *\n * VML was deprecated in 2012, which means VML functionality exists only for backwards compatibility\n * with old versions of Internet Explorer.\n */\n\n// @namespace Browser; @property vml: Boolean\n// `true` if the browser supports [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language).\nL.Browser.vml = !L.Browser.svg && (function () {\n\ttry {\n\t\tvar div = document.createElement('div');\n\t\tdiv.innerHTML = '<v:shape adj=\"1\"/>';\n\n\t\tvar shape = div.firstChild;\n\t\tshape.style.behavior = 'url(#default#VML)';\n\n\t\treturn shape && (typeof shape.adj === 'object');\n\n\t} catch (e) {\n\t\treturn false;\n\t}\n}());\n\n// redefine some SVG methods to handle VML syntax which is similar but with some differences\nL.SVG.include(!L.Browser.vml ? {} : {\n\n\t_initContainer: function () {\n\t\tthis._container = L.DomUtil.create('div', 'leaflet-vml-container');\n\t},\n\n\t_update: function () {\n\t\tif (this._map._animatingZoom) { return; }\n\t\tL.Renderer.prototype._update.call(this);\n\t\tthis.fire('update');\n\t},\n\n\t_initPath: function (layer) {\n\t\tvar container = layer._container = L.SVG.create('shape');\n\n\t\tL.DomUtil.addClass(container, 'leaflet-vml-shape ' + (this.options.className || ''));\n\n\t\tcontainer.coordsize = '1 1';\n\n\t\tlayer._path = L.SVG.create('path');\n\t\tcontainer.appendChild(layer._path);\n\n\t\tthis._updateStyle(layer);\n\t},\n\n\t_addPath: function (layer) {\n\t\tvar container = layer._container;\n\t\tthis._container.appendChild(container);\n\n\t\tif (layer.options.interactive) {\n\t\t\tlayer.addInteractiveTarget(container);\n\t\t}\n\t},\n\n\t_removePath: function (layer) {\n\t\tvar container = layer._container;\n\t\tL.DomUtil.remove(container);\n\t\tlayer.removeInteractiveTarget(container);\n\t},\n\n\t_updateStyle: function (layer) {\n\t\tvar stroke = layer._stroke,\n\t\t    fill = layer._fill,\n\t\t    options = layer.options,\n\t\t    container = layer._container;\n\n\t\tcontainer.stroked = !!options.stroke;\n\t\tcontainer.filled = !!options.fill;\n\n\t\tif (options.stroke) {\n\t\t\tif (!stroke) {\n\t\t\t\tstroke = layer._stroke = L.SVG.create('stroke');\n\t\t\t}\n\t\t\tcontainer.appendChild(stroke);\n\t\t\tstroke.weight = options.weight + 'px';\n\t\t\tstroke.color = options.color;\n\t\t\tstroke.opacity = options.opacity;\n\n\t\t\tif (options.dashArray) {\n\t\t\t\tstroke.dashStyle = L.Util.isArray(options.dashArray) ?\n\t\t\t\t    options.dashArray.join(' ') :\n\t\t\t\t    options.dashArray.replace(/( *, *)/g, ' ');\n\t\t\t} else {\n\t\t\t\tstroke.dashStyle = '';\n\t\t\t}\n\t\t\tstroke.endcap = options.lineCap.replace('butt', 'flat');\n\t\t\tstroke.joinstyle = options.lineJoin;\n\n\t\t} else if (stroke) {\n\t\t\tcontainer.removeChild(stroke);\n\t\t\tlayer._stroke = null;\n\t\t}\n\n\t\tif (options.fill) {\n\t\t\tif (!fill) {\n\t\t\t\tfill = layer._fill = L.SVG.create('fill');\n\t\t\t}\n\t\t\tcontainer.appendChild(fill);\n\t\t\tfill.color = options.fillColor || options.color;\n\t\t\tfill.opacity = options.fillOpacity;\n\n\t\t} else if (fill) {\n\t\t\tcontainer.removeChild(fill);\n\t\t\tlayer._fill = null;\n\t\t}\n\t},\n\n\t_updateCircle: function (layer) {\n\t\tvar p = layer._point.round(),\n\t\t    r = Math.round(layer._radius),\n\t\t    r2 = Math.round(layer._radiusY || r);\n\n\t\tthis._setPath(layer, layer._empty() ? 'M0 0' :\n\t\t\t\t'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r2 + ' 0,' + (65535 * 360));\n\t},\n\n\t_setPath: function (layer, path) {\n\t\tlayer._path.v = path;\n\t},\n\n\t_bringToFront: function (layer) {\n\t\tL.DomUtil.toFront(layer._container);\n\t},\n\n\t_bringToBack: function (layer) {\n\t\tL.DomUtil.toBack(layer._container);\n\t}\n});\n\nif (L.Browser.vml) {\n\tL.SVG.create = (function () {\n\t\ttry {\n\t\t\tdocument.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');\n\t\t\treturn function (name) {\n\t\t\t\treturn document.createElement('<lvml:' + name + ' class=\"lvml\">');\n\t\t\t};\n\t\t} catch (e) {\n\t\t\treturn function (name) {\n\t\t\t\treturn document.createElement('<' + name + ' xmlns=\"urn:schemas-microsoft.com:vml\" class=\"lvml\">');\n\t\t\t};\n\t\t}\n\t})();\n}\n\n\n\n/*\n * @class Canvas\n * @inherits Renderer\n * @aka L.Canvas\n *\n * Allows vector layers to be displayed with [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).\n * Inherits `Renderer`.\n *\n * Due to [technical limitations](http://caniuse.com/#search=canvas), Canvas is not\n * available in all web browsers, notably IE8, and overlapping geometries might\n * not display properly in some edge cases.\n *\n * @example\n *\n * Use Canvas by default for all paths in the map:\n *\n * ```js\n * var map = L.map('map', {\n * \trenderer: L.canvas()\n * });\n * ```\n *\n * Use a Canvas renderer with extra padding for specific vector geometries:\n *\n * ```js\n * var map = L.map('map');\n * var myRenderer = L.canvas({ padding: 0.5 });\n * var line = L.polyline( coordinates, { renderer: myRenderer } );\n * var circle = L.circle( center, { renderer: myRenderer } );\n * ```\n */\n\nL.Canvas = L.Renderer.extend({\n\n\tonAdd: function () {\n\t\tL.Renderer.prototype.onAdd.call(this);\n\n\t\t// Redraw vectors since canvas is cleared upon removal,\n\t\t// in case of removing the renderer itself from the map.\n\t\tthis._draw();\n\t},\n\n\t_initContainer: function () {\n\t\tvar container = this._container = document.createElement('canvas');\n\n\t\tL.DomEvent\n\t\t\t.on(container, 'mousemove', L.Util.throttle(this._onMouseMove, 32, this), this)\n\t\t\t.on(container, 'click dblclick mousedown mouseup contextmenu', this._onClick, this)\n\t\t\t.on(container, 'mouseout', this._handleMouseOut, this);\n\n\t\tthis._ctx = container.getContext('2d');\n\t},\n\n\t_updatePaths: function () {\n\t\tvar layer;\n\t\tthis._redrawBounds = null;\n\t\tfor (var id in this._layers) {\n\t\t\tlayer = this._layers[id];\n\t\t\tlayer._update();\n\t\t}\n\t\tthis._redraw();\n\t},\n\n\t_update: function () {\n\t\tif (this._map._animatingZoom && this._bounds) { return; }\n\n\t\tthis._drawnLayers = {};\n\n\t\tL.Renderer.prototype._update.call(this);\n\n\t\tvar b = this._bounds,\n\t\t    container = this._container,\n\t\t    size = b.getSize(),\n\t\t    m = L.Browser.retina ? 2 : 1;\n\n\t\tL.DomUtil.setPosition(container, b.min);\n\n\t\t// set canvas size (also clearing it); use double size on retina\n\t\tcontainer.width = m * size.x;\n\t\tcontainer.height = m * size.y;\n\t\tcontainer.style.width = size.x + 'px';\n\t\tcontainer.style.height = size.y + 'px';\n\n\t\tif (L.Browser.retina) {\n\t\t\tthis._ctx.scale(2, 2);\n\t\t}\n\n\t\t// translate so we use the same path coordinates after canvas element moves\n\t\tthis._ctx.translate(-b.min.x, -b.min.y);\n\n\t\t// Tell paths to redraw themselves\n\t\tthis.fire('update');\n\t},\n\n\t_initPath: function (layer) {\n\t\tthis._updateDashArray(layer);\n\t\tthis._layers[L.stamp(layer)] = layer;\n\n\t\tvar order = layer._order = {\n\t\t\tlayer: layer,\n\t\t\tprev: this._drawLast,\n\t\t\tnext: null\n\t\t};\n\t\tif (this._drawLast) { this._drawLast.next = order; }\n\t\tthis._drawLast = order;\n\t\tthis._drawFirst = this._drawFirst || this._drawLast;\n\t},\n\n\t_addPath: function (layer) {\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_removePath: function (layer) {\n\t\tvar order = layer._order;\n\t\tvar next = order.next;\n\t\tvar prev = order.prev;\n\n\t\tif (next) {\n\t\t\tnext.prev = prev;\n\t\t} else {\n\t\t\tthis._drawLast = prev;\n\t\t}\n\t\tif (prev) {\n\t\t\tprev.next = next;\n\t\t} else {\n\t\t\tthis._drawFirst = next;\n\t\t}\n\n\t\tdelete layer._order;\n\n\t\tdelete this._layers[L.stamp(layer)];\n\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_updatePath: function (layer) {\n\t\t// Redraw the union of the layer's old pixel\n\t\t// bounds and the new pixel bounds.\n\t\tthis._extendRedrawBounds(layer);\n\t\tlayer._project();\n\t\tlayer._update();\n\t\t// The redraw will extend the redraw bounds\n\t\t// with the new pixel bounds.\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_updateStyle: function (layer) {\n\t\tthis._updateDashArray(layer);\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_updateDashArray: function (layer) {\n\t\tif (layer.options.dashArray) {\n\t\t\tvar parts = layer.options.dashArray.split(','),\n\t\t\t    dashArray = [],\n\t\t\t    i;\n\t\t\tfor (i = 0; i < parts.length; i++) {\n\t\t\t\tdashArray.push(Number(parts[i]));\n\t\t\t}\n\t\t\tlayer.options._dashArray = dashArray;\n\t\t}\n\t},\n\n\t_requestRedraw: function (layer) {\n\t\tif (!this._map) { return; }\n\n\t\tthis._extendRedrawBounds(layer);\n\t\tthis._redrawRequest = this._redrawRequest || L.Util.requestAnimFrame(this._redraw, this);\n\t},\n\n\t_extendRedrawBounds: function (layer) {\n\t\tvar padding = (layer.options.weight || 0) + 1;\n\t\tthis._redrawBounds = this._redrawBounds || new L.Bounds();\n\t\tthis._redrawBounds.extend(layer._pxBounds.min.subtract([padding, padding]));\n\t\tthis._redrawBounds.extend(layer._pxBounds.max.add([padding, padding]));\n\t},\n\n\t_redraw: function () {\n\t\tthis._redrawRequest = null;\n\n\t\tthis._clear(); // clear layers in redraw bounds\n\t\tthis._draw(); // draw layers\n\n\t\tthis._redrawBounds = null;\n\t},\n\n\t_clear: function () {\n\t\tvar bounds = this._redrawBounds;\n\t\tif (bounds) {\n\t\t\tvar size = bounds.getSize();\n\t\t\tthis._ctx.clearRect(bounds.min.x, bounds.min.y, size.x, size.y);\n\t\t} else {\n\t\t\tthis._ctx.clearRect(0, 0, this._container.width, this._container.height);\n\t\t}\n\t},\n\n\t_draw: function () {\n\t\tvar layer, bounds = this._redrawBounds;\n\t\tthis._ctx.save();\n\t\tif (bounds) {\n\t\t\tvar size = bounds.getSize();\n\t\t\tthis._ctx.beginPath();\n\t\t\tthis._ctx.rect(bounds.min.x, bounds.min.y, size.x, size.y);\n\t\t\tthis._ctx.clip();\n\t\t}\n\n\t\tthis._drawing = true;\n\n\t\tfor (var order = this._drawFirst; order; order = order.next) {\n\t\t\tlayer = order.layer;\n\t\t\tif (!bounds || (layer._pxBounds && layer._pxBounds.intersects(bounds))) {\n\t\t\t\tlayer._updatePath();\n\t\t\t}\n\t\t}\n\n\t\tthis._drawing = false;\n\n\t\tthis._ctx.restore();  // Restore state before clipping.\n\t},\n\n\t_updatePoly: function (layer, closed) {\n\t\tif (!this._drawing) { return; }\n\n\t\tvar i, j, len2, p,\n\t\t    parts = layer._parts,\n\t\t    len = parts.length,\n\t\t    ctx = this._ctx;\n\n\t\tif (!len) { return; }\n\n\t\tthis._drawnLayers[layer._leaflet_id] = layer;\n\n\t\tctx.beginPath();\n\n\t\tif (ctx.setLineDash) {\n\t\t\tctx.setLineDash(layer.options && layer.options._dashArray || []);\n\t\t}\n\n\t\tfor (i = 0; i < len; i++) {\n\t\t\tfor (j = 0, len2 = parts[i].length; j < len2; j++) {\n\t\t\t\tp = parts[i][j];\n\t\t\t\tctx[j ? 'lineTo' : 'moveTo'](p.x, p.y);\n\t\t\t}\n\t\t\tif (closed) {\n\t\t\t\tctx.closePath();\n\t\t\t}\n\t\t}\n\n\t\tthis._fillStroke(ctx, layer);\n\n\t\t// TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature\n\t},\n\n\t_updateCircle: function (layer) {\n\n\t\tif (!this._drawing || layer._empty()) { return; }\n\n\t\tvar p = layer._point,\n\t\t    ctx = this._ctx,\n\t\t    r = layer._radius,\n\t\t    s = (layer._radiusY || r) / r;\n\n\t\tthis._drawnLayers[layer._leaflet_id] = layer;\n\n\t\tif (s !== 1) {\n\t\t\tctx.save();\n\t\t\tctx.scale(1, s);\n\t\t}\n\n\t\tctx.beginPath();\n\t\tctx.arc(p.x, p.y / s, r, 0, Math.PI * 2, false);\n\n\t\tif (s !== 1) {\n\t\t\tctx.restore();\n\t\t}\n\n\t\tthis._fillStroke(ctx, layer);\n\t},\n\n\t_fillStroke: function (ctx, layer) {\n\t\tvar options = layer.options;\n\n\t\tif (options.fill) {\n\t\t\tctx.globalAlpha = options.fillOpacity;\n\t\t\tctx.fillStyle = options.fillColor || options.color;\n\t\t\tctx.fill(options.fillRule || 'evenodd');\n\t\t}\n\n\t\tif (options.stroke && options.weight !== 0) {\n\t\t\tctx.globalAlpha = options.opacity;\n\t\t\tctx.lineWidth = options.weight;\n\t\t\tctx.strokeStyle = options.color;\n\t\t\tctx.lineCap = options.lineCap;\n\t\t\tctx.lineJoin = options.lineJoin;\n\t\t\tctx.stroke();\n\t\t}\n\t},\n\n\t// Canvas obviously doesn't have mouse events for individual drawn objects,\n\t// so we emulate that by calculating what's under the mouse on mousemove/click manually\n\n\t_onClick: function (e) {\n\t\tvar point = this._map.mouseEventToLayerPoint(e), layer, clickedLayer;\n\n\t\tfor (var order = this._drawFirst; order; order = order.next) {\n\t\t\tlayer = order.layer;\n\t\t\tif (layer.options.interactive && layer._containsPoint(point) && !this._map._draggableMoved(layer)) {\n\t\t\t\tclickedLayer = layer;\n\t\t\t}\n\t\t}\n\t\tif (clickedLayer)  {\n\t\t\tL.DomEvent._fakeStop(e);\n\t\t\tthis._fireEvent([clickedLayer], e);\n\t\t}\n\t},\n\n\t_onMouseMove: function (e) {\n\t\tif (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; }\n\n\t\tvar point = this._map.mouseEventToLayerPoint(e);\n\t\tthis._handleMouseHover(e, point);\n\t},\n\n\n\t_handleMouseOut: function (e) {\n\t\tvar layer = this._hoveredLayer;\n\t\tif (layer) {\n\t\t\t// if we're leaving the layer, fire mouseout\n\t\t\tL.DomUtil.removeClass(this._container, 'leaflet-interactive');\n\t\t\tthis._fireEvent([layer], e, 'mouseout');\n\t\t\tthis._hoveredLayer = null;\n\t\t}\n\t},\n\n\t_handleMouseHover: function (e, point) {\n\t\tvar layer, candidateHoveredLayer;\n\n\t\tfor (var order = this._drawFirst; order; order = order.next) {\n\t\t\tlayer = order.layer;\n\t\t\tif (layer.options.interactive && layer._containsPoint(point)) {\n\t\t\t\tcandidateHoveredLayer = layer;\n\t\t\t}\n\t\t}\n\n\t\tif (candidateHoveredLayer !== this._hoveredLayer) {\n\t\t\tthis._handleMouseOut(e);\n\n\t\t\tif (candidateHoveredLayer) {\n\t\t\t\tL.DomUtil.addClass(this._container, 'leaflet-interactive'); // change cursor\n\t\t\t\tthis._fireEvent([candidateHoveredLayer], e, 'mouseover');\n\t\t\t\tthis._hoveredLayer = candidateHoveredLayer;\n\t\t\t}\n\t\t}\n\n\t\tif (this._hoveredLayer) {\n\t\t\tthis._fireEvent([this._hoveredLayer], e);\n\t\t}\n\t},\n\n\t_fireEvent: function (layers, e, type) {\n\t\tthis._map._fireDOMEvent(e, type || e.type, layers);\n\t},\n\n\t_bringToFront: function (layer) {\n\t\tvar order = layer._order;\n\t\tvar next = order.next;\n\t\tvar prev = order.prev;\n\n\t\tif (next) {\n\t\t\tnext.prev = prev;\n\t\t} else {\n\t\t\t// Already last\n\t\t\treturn;\n\t\t}\n\t\tif (prev) {\n\t\t\tprev.next = next;\n\t\t} else if (next) {\n\t\t\t// Update first entry unless this is the\n\t\t\t// signle entry\n\t\t\tthis._drawFirst = next;\n\t\t}\n\n\t\torder.prev = this._drawLast;\n\t\tthis._drawLast.next = order;\n\n\t\torder.next = null;\n\t\tthis._drawLast = order;\n\n\t\tthis._requestRedraw(layer);\n\t},\n\n\t_bringToBack: function (layer) {\n\t\tvar order = layer._order;\n\t\tvar next = order.next;\n\t\tvar prev = order.prev;\n\n\t\tif (prev) {\n\t\t\tprev.next = next;\n\t\t} else {\n\t\t\t// Already first\n\t\t\treturn;\n\t\t}\n\t\tif (next) {\n\t\t\tnext.prev = prev;\n\t\t} else if (prev) {\n\t\t\t// Update last entry unless this is the\n\t\t\t// signle entry\n\t\t\tthis._drawLast = prev;\n\t\t}\n\n\t\torder.prev = null;\n\n\t\torder.next = this._drawFirst;\n\t\tthis._drawFirst.prev = order;\n\t\tthis._drawFirst = order;\n\n\t\tthis._requestRedraw(layer);\n\t}\n});\n\n// @namespace Browser; @property canvas: Boolean\n// `true` when the browser supports [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).\nL.Browser.canvas = (function () {\n\treturn !!document.createElement('canvas').getContext;\n}());\n\n// @namespace Canvas\n// @factory L.canvas(options?: Renderer options)\n// Creates a Canvas renderer with the given options.\nL.canvas = function (options) {\n\treturn L.Browser.canvas ? new L.Canvas(options) : null;\n};\n\nL.Polyline.prototype._containsPoint = function (p, closed) {\n\tvar i, j, k, len, len2, part,\n\t    w = this._clickTolerance();\n\n\tif (!this._pxBounds.contains(p)) { return false; }\n\n\t// hit detection for polylines\n\tfor (i = 0, len = this._parts.length; i < len; i++) {\n\t\tpart = this._parts[i];\n\n\t\tfor (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {\n\t\t\tif (!closed && (j === 0)) { continue; }\n\n\t\t\tif (L.LineUtil.pointToSegmentDistance(p, part[k], part[j]) <= w) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\t}\n\treturn false;\n};\n\nL.Polygon.prototype._containsPoint = function (p) {\n\tvar inside = false,\n\t    part, p1, p2, i, j, k, len, len2;\n\n\tif (!this._pxBounds.contains(p)) { return false; }\n\n\t// ray casting algorithm for detecting if point is in polygon\n\tfor (i = 0, len = this._parts.length; i < len; i++) {\n\t\tpart = this._parts[i];\n\n\t\tfor (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {\n\t\t\tp1 = part[j];\n\t\t\tp2 = part[k];\n\n\t\t\tif (((p1.y > p.y) !== (p2.y > p.y)) && (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {\n\t\t\t\tinside = !inside;\n\t\t\t}\n\t\t}\n\t}\n\n\t// also check if it's on polygon stroke\n\treturn inside || L.Polyline.prototype._containsPoint.call(this, p, true);\n};\n\nL.CircleMarker.prototype._containsPoint = function (p) {\n\treturn p.distanceTo(this._point) <= this._radius + this._clickTolerance();\n};\n\n\n\n/*\r\n * @class GeoJSON\r\n * @aka L.GeoJSON\r\n * @inherits FeatureGroup\r\n *\r\n * Represents a GeoJSON object or an array of GeoJSON objects. Allows you to parse\r\n * GeoJSON data and display it on the map. Extends `FeatureGroup`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * L.geoJSON(data, {\r\n * \tstyle: function (feature) {\r\n * \t\treturn {color: feature.properties.color};\r\n * \t}\r\n * }).bindPopup(function (layer) {\r\n * \treturn layer.feature.properties.description;\r\n * }).addTo(map);\r\n * ```\r\n */\r\n\r\nL.GeoJSON = L.FeatureGroup.extend({\r\n\r\n\t/* @section\r\n\t * @aka GeoJSON options\r\n\t *\r\n\t * @option pointToLayer: Function = *\r\n\t * A `Function` defining how GeoJSON points spawn Leaflet layers. It is internally\r\n\t * called when data is added, passing the GeoJSON point feature and its `LatLng`.\r\n\t * The default is to spawn a default `Marker`:\r\n\t * ```js\r\n\t * function(geoJsonPoint, latlng) {\r\n\t * \treturn L.marker(latlng);\r\n\t * }\r\n\t * ```\r\n\t *\r\n\t * @option style: Function = *\r\n\t * A `Function` defining the `Path options` for styling GeoJSON lines and polygons,\r\n\t * called internally when data is added.\r\n\t * The default value is to not override any defaults:\r\n\t * ```js\r\n\t * function (geoJsonFeature) {\r\n\t * \treturn {}\r\n\t * }\r\n\t * ```\r\n\t *\r\n\t * @option onEachFeature: Function = *\r\n\t * A `Function` that will be called once for each created `Feature`, after it has\r\n\t * been created and styled. Useful for attaching events and popups to features.\r\n\t * The default is to do nothing with the newly created layers:\r\n\t * ```js\r\n\t * function (feature, layer) {}\r\n\t * ```\r\n\t *\r\n\t * @option filter: Function = *\r\n\t * A `Function` that will be used to decide whether to include a feature or not.\r\n\t * The default is to include all features:\r\n\t * ```js\r\n\t * function (geoJsonFeature) {\r\n\t * \treturn true;\r\n\t * }\r\n\t * ```\r\n\t * Note: dynamically changing the `filter` option will have effect only on newly\r\n\t * added data. It will _not_ re-evaluate already included features.\r\n\t *\r\n\t * @option coordsToLatLng: Function = *\r\n\t * A `Function` that will be used for converting GeoJSON coordinates to `LatLng`s.\r\n\t * The default is the `coordsToLatLng` static method.\r\n\t */\r\n\r\n\tinitialize: function (geojson, options) {\r\n\t\tL.setOptions(this, options);\r\n\r\n\t\tthis._layers = {};\r\n\r\n\t\tif (geojson) {\r\n\t\t\tthis.addData(geojson);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method addData( <GeoJSON> data ): this\r\n\t// Adds a GeoJSON object to the layer.\r\n\taddData: function (geojson) {\r\n\t\tvar features = L.Util.isArray(geojson) ? geojson : geojson.features,\r\n\t\t    i, len, feature;\r\n\r\n\t\tif (features) {\r\n\t\t\tfor (i = 0, len = features.length; i < len; i++) {\r\n\t\t\t\t// only add this if geometry or geometries are set and not null\r\n\t\t\t\tfeature = features[i];\r\n\t\t\t\tif (feature.geometries || feature.geometry || feature.features || feature.coordinates) {\r\n\t\t\t\t\tthis.addData(feature);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tvar options = this.options;\r\n\r\n\t\tif (options.filter && !options.filter(geojson)) { return this; }\r\n\r\n\t\tvar layer = L.GeoJSON.geometryToLayer(geojson, options);\r\n\t\tif (!layer) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\t\tlayer.feature = L.GeoJSON.asFeature(geojson);\r\n\r\n\t\tlayer.defaultOptions = layer.options;\r\n\t\tthis.resetStyle(layer);\r\n\r\n\t\tif (options.onEachFeature) {\r\n\t\t\toptions.onEachFeature(geojson, layer);\r\n\t\t}\r\n\r\n\t\treturn this.addLayer(layer);\r\n\t},\r\n\r\n\t// @method resetStyle( <Path> layer ): this\r\n\t// Resets the given vector layer's style to the original GeoJSON style, useful for resetting style after hover events.\r\n\tresetStyle: function (layer) {\r\n\t\t// reset any custom styles\r\n\t\tlayer.options = L.Util.extend({}, layer.defaultOptions);\r\n\t\tthis._setLayerStyle(layer, this.options.style);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method setStyle( <Function> style ): this\r\n\t// Changes styles of GeoJSON vector layers with the given style function.\r\n\tsetStyle: function (style) {\r\n\t\treturn this.eachLayer(function (layer) {\r\n\t\t\tthis._setLayerStyle(layer, style);\r\n\t\t}, this);\r\n\t},\r\n\r\n\t_setLayerStyle: function (layer, style) {\r\n\t\tif (typeof style === 'function') {\r\n\t\t\tstyle = style(layer.feature);\r\n\t\t}\r\n\t\tif (layer.setStyle) {\r\n\t\t\tlayer.setStyle(style);\r\n\t\t}\r\n\t}\r\n});\r\n\r\n// @section\r\n// There are several static functions which can be called without instantiating L.GeoJSON:\r\nL.extend(L.GeoJSON, {\r\n\t// @function geometryToLayer(featureData: Object, options?: GeoJSON options): Layer\r\n\t// Creates a `Layer` from a given GeoJSON feature. Can use a custom\r\n\t// [`pointToLayer`](#geojson-pointtolayer) and/or [`coordsToLatLng`](#geojson-coordstolatlng)\r\n\t// functions if provided as options.\r\n\tgeometryToLayer: function (geojson, options) {\r\n\r\n\t\tvar geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,\r\n\t\t    coords = geometry ? geometry.coordinates : null,\r\n\t\t    layers = [],\r\n\t\t    pointToLayer = options && options.pointToLayer,\r\n\t\t    coordsToLatLng = options && options.coordsToLatLng || this.coordsToLatLng,\r\n\t\t    latlng, latlngs, i, len;\r\n\r\n\t\tif (!coords && !geometry) {\r\n\t\t\treturn null;\r\n\t\t}\r\n\r\n\t\tswitch (geometry.type) {\r\n\t\tcase 'Point':\r\n\t\t\tlatlng = coordsToLatLng(coords);\r\n\t\t\treturn pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);\r\n\r\n\t\tcase 'MultiPoint':\r\n\t\t\tfor (i = 0, len = coords.length; i < len; i++) {\r\n\t\t\t\tlatlng = coordsToLatLng(coords[i]);\r\n\t\t\t\tlayers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng));\r\n\t\t\t}\r\n\t\t\treturn new L.FeatureGroup(layers);\r\n\r\n\t\tcase 'LineString':\r\n\t\tcase 'MultiLineString':\r\n\t\t\tlatlngs = this.coordsToLatLngs(coords, geometry.type === 'LineString' ? 0 : 1, coordsToLatLng);\r\n\t\t\treturn new L.Polyline(latlngs, options);\r\n\r\n\t\tcase 'Polygon':\r\n\t\tcase 'MultiPolygon':\r\n\t\t\tlatlngs = this.coordsToLatLngs(coords, geometry.type === 'Polygon' ? 1 : 2, coordsToLatLng);\r\n\t\t\treturn new L.Polygon(latlngs, options);\r\n\r\n\t\tcase 'GeometryCollection':\r\n\t\t\tfor (i = 0, len = geometry.geometries.length; i < len; i++) {\r\n\t\t\t\tvar layer = this.geometryToLayer({\r\n\t\t\t\t\tgeometry: geometry.geometries[i],\r\n\t\t\t\t\ttype: 'Feature',\r\n\t\t\t\t\tproperties: geojson.properties\r\n\t\t\t\t}, options);\r\n\r\n\t\t\t\tif (layer) {\r\n\t\t\t\t\tlayers.push(layer);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\treturn new L.FeatureGroup(layers);\r\n\r\n\t\tdefault:\r\n\t\t\tthrow new Error('Invalid GeoJSON object.');\r\n\t\t}\r\n\t},\r\n\r\n\t// @function coordsToLatLng(coords: Array): LatLng\r\n\t// Creates a `LatLng` object from an array of 2 numbers (longitude, latitude)\r\n\t// or 3 numbers (longitude, latitude, altitude) used in GeoJSON for points.\r\n\tcoordsToLatLng: function (coords) {\r\n\t\treturn new L.LatLng(coords[1], coords[0], coords[2]);\r\n\t},\r\n\r\n\t// @function coordsToLatLngs(coords: Array, levelsDeep?: Number, coordsToLatLng?: Function): Array\r\n\t// Creates a multidimensional array of `LatLng`s from a GeoJSON coordinates array.\r\n\t// `levelsDeep` specifies the nesting level (0 is for an array of points, 1 for an array of arrays of points, etc., 0 by default).\r\n\t// Can use a custom [`coordsToLatLng`](#geojson-coordstolatlng) function.\r\n\tcoordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) {\r\n\t\tvar latlngs = [];\r\n\r\n\t\tfor (var i = 0, len = coords.length, latlng; i < len; i++) {\r\n\t\t\tlatlng = levelsDeep ?\r\n\t\t\t        this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) :\r\n\t\t\t        (coordsToLatLng || this.coordsToLatLng)(coords[i]);\r\n\r\n\t\t\tlatlngs.push(latlng);\r\n\t\t}\r\n\r\n\t\treturn latlngs;\r\n\t},\r\n\r\n\t// @function latLngToCoords(latlng: LatLng): Array\r\n\t// Reverse of [`coordsToLatLng`](#geojson-coordstolatlng)\r\n\tlatLngToCoords: function (latlng) {\r\n\t\treturn latlng.alt !== undefined ?\r\n\t\t\t\t[latlng.lng, latlng.lat, latlng.alt] :\r\n\t\t\t\t[latlng.lng, latlng.lat];\r\n\t},\r\n\r\n\t// @function latLngsToCoords(latlngs: Array, levelsDeep?: Number, closed?: Boolean): Array\r\n\t// Reverse of [`coordsToLatLngs`](#geojson-coordstolatlngs)\r\n\t// `closed` determines whether the first point should be appended to the end of the array to close the feature, only used when `levelsDeep` is 0. False by default.\r\n\tlatLngsToCoords: function (latlngs, levelsDeep, closed) {\r\n\t\tvar coords = [];\r\n\r\n\t\tfor (var i = 0, len = latlngs.length; i < len; i++) {\r\n\t\t\tcoords.push(levelsDeep ?\r\n\t\t\t\tL.GeoJSON.latLngsToCoords(latlngs[i], levelsDeep - 1, closed) :\r\n\t\t\t\tL.GeoJSON.latLngToCoords(latlngs[i]));\r\n\t\t}\r\n\r\n\t\tif (!levelsDeep && closed) {\r\n\t\t\tcoords.push(coords[0]);\r\n\t\t}\r\n\r\n\t\treturn coords;\r\n\t},\r\n\r\n\tgetFeature: function (layer, newGeometry) {\r\n\t\treturn layer.feature ?\r\n\t\t\t\tL.extend({}, layer.feature, {geometry: newGeometry}) :\r\n\t\t\t\tL.GeoJSON.asFeature(newGeometry);\r\n\t},\r\n\r\n\t// @function asFeature(geojson: Object): Object\r\n\t// Normalize GeoJSON geometries/features into GeoJSON features.\r\n\tasFeature: function (geojson) {\r\n\t\tif (geojson.type === 'Feature' || geojson.type === 'FeatureCollection') {\r\n\t\t\treturn geojson;\r\n\t\t}\r\n\r\n\t\treturn {\r\n\t\t\ttype: 'Feature',\r\n\t\t\tproperties: {},\r\n\t\t\tgeometry: geojson\r\n\t\t};\r\n\t}\r\n});\r\n\r\nvar PointToGeoJSON = {\r\n\ttoGeoJSON: function () {\r\n\t\treturn L.GeoJSON.getFeature(this, {\r\n\t\t\ttype: 'Point',\r\n\t\t\tcoordinates: L.GeoJSON.latLngToCoords(this.getLatLng())\r\n\t\t});\r\n\t}\r\n};\r\n\r\n// @namespace Marker\r\n// @method toGeoJSON(): Object\r\n// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the marker (as a GeoJSON `Point` Feature).\r\nL.Marker.include(PointToGeoJSON);\r\n\r\n// @namespace CircleMarker\r\n// @method toGeoJSON(): Object\r\n// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the circle marker (as a GeoJSON `Point` Feature).\r\nL.Circle.include(PointToGeoJSON);\r\nL.CircleMarker.include(PointToGeoJSON);\r\n\r\n\r\n// @namespace Polyline\r\n// @method toGeoJSON(): Object\r\n// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polyline (as a GeoJSON `LineString` or `MultiLineString` Feature).\r\nL.Polyline.prototype.toGeoJSON = function () {\r\n\tvar multi = !L.Polyline._flat(this._latlngs);\r\n\r\n\tvar coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 1 : 0);\r\n\r\n\treturn L.GeoJSON.getFeature(this, {\r\n\t\ttype: (multi ? 'Multi' : '') + 'LineString',\r\n\t\tcoordinates: coords\r\n\t});\r\n};\r\n\r\n// @namespace Polygon\r\n// @method toGeoJSON(): Object\r\n// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polygon (as a GeoJSON `Polygon` or `MultiPolygon` Feature).\r\nL.Polygon.prototype.toGeoJSON = function () {\r\n\tvar holes = !L.Polyline._flat(this._latlngs),\r\n\t    multi = holes && !L.Polyline._flat(this._latlngs[0]);\r\n\r\n\tvar coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true);\r\n\r\n\tif (!holes) {\r\n\t\tcoords = [coords];\r\n\t}\r\n\r\n\treturn L.GeoJSON.getFeature(this, {\r\n\t\ttype: (multi ? 'Multi' : '') + 'Polygon',\r\n\t\tcoordinates: coords\r\n\t});\r\n};\r\n\r\n\r\n// @namespace LayerGroup\r\nL.LayerGroup.include({\r\n\ttoMultiPoint: function () {\r\n\t\tvar coords = [];\r\n\r\n\t\tthis.eachLayer(function (layer) {\r\n\t\t\tcoords.push(layer.toGeoJSON().geometry.coordinates);\r\n\t\t});\r\n\r\n\t\treturn L.GeoJSON.getFeature(this, {\r\n\t\t\ttype: 'MultiPoint',\r\n\t\t\tcoordinates: coords\r\n\t\t});\r\n\t},\r\n\r\n\t// @method toGeoJSON(): Object\r\n\t// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the layer group (as a GeoJSON `GeometryCollection`).\r\n\ttoGeoJSON: function () {\r\n\r\n\t\tvar type = this.feature && this.feature.geometry && this.feature.geometry.type;\r\n\r\n\t\tif (type === 'MultiPoint') {\r\n\t\t\treturn this.toMultiPoint();\r\n\t\t}\r\n\r\n\t\tvar isGeometryCollection = type === 'GeometryCollection',\r\n\t\t    jsons = [];\r\n\r\n\t\tthis.eachLayer(function (layer) {\r\n\t\t\tif (layer.toGeoJSON) {\r\n\t\t\t\tvar json = layer.toGeoJSON();\r\n\t\t\t\tjsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));\r\n\t\t\t}\r\n\t\t});\r\n\r\n\t\tif (isGeometryCollection) {\r\n\t\t\treturn L.GeoJSON.getFeature(this, {\r\n\t\t\t\tgeometries: jsons,\r\n\t\t\t\ttype: 'GeometryCollection'\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\treturn {\r\n\t\t\ttype: 'FeatureCollection',\r\n\t\t\tfeatures: jsons\r\n\t\t};\r\n\t}\r\n});\r\n\r\n// @namespace GeoJSON\r\n// @factory L.geoJSON(geojson?: Object, options?: GeoJSON options)\r\n// Creates a GeoJSON layer. Optionally accepts an object in\r\n// [GeoJSON format](http://geojson.org/geojson-spec.html) to display on the map\r\n// (you can alternatively add it later with `addData` method) and an `options` object.\r\nL.geoJSON = function (geojson, options) {\r\n\treturn new L.GeoJSON(geojson, options);\r\n};\r\n// Backward compatibility.\r\nL.geoJson = L.geoJSON;\r\n\n\n\n/*\r\n * @class Draggable\r\n * @aka L.Draggable\r\n * @inherits Evented\r\n *\r\n * A class for making DOM elements draggable (including touch support).\r\n * Used internally for map and marker dragging. Only works for elements\r\n * that were positioned with [`L.DomUtil.setPosition`](#domutil-setposition).\r\n *\r\n * @example\r\n * ```js\r\n * var draggable = new L.Draggable(elementToDrag);\r\n * draggable.enable();\r\n * ```\r\n */\r\n\r\nL.Draggable = L.Evented.extend({\r\n\r\n\toptions: {\r\n\t\t// @option clickTolerance: Number = 3\r\n\t\t// The max number of pixels a user can shift the mouse pointer during a click\r\n\t\t// for it to be considered a valid click (as opposed to a mouse drag).\r\n\t\tclickTolerance: 3\r\n\t},\r\n\r\n\tstatics: {\r\n\t\tSTART: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'],\r\n\t\tEND: {\r\n\t\t\tmousedown: 'mouseup',\r\n\t\t\ttouchstart: 'touchend',\r\n\t\t\tpointerdown: 'touchend',\r\n\t\t\tMSPointerDown: 'touchend'\r\n\t\t},\r\n\t\tMOVE: {\r\n\t\t\tmousedown: 'mousemove',\r\n\t\t\ttouchstart: 'touchmove',\r\n\t\t\tpointerdown: 'touchmove',\r\n\t\t\tMSPointerDown: 'touchmove'\r\n\t\t}\r\n\t},\r\n\r\n\t// @constructor L.Draggable(el: HTMLElement, dragHandle?: HTMLElement, preventOutline: Boolean)\r\n\t// Creates a `Draggable` object for moving `el` when you start dragging the `dragHandle` element (equals `el` itself by default).\r\n\tinitialize: function (element, dragStartTarget, preventOutline) {\r\n\t\tthis._element = element;\r\n\t\tthis._dragStartTarget = dragStartTarget || element;\r\n\t\tthis._preventOutline = preventOutline;\r\n\t},\r\n\r\n\t// @method enable()\r\n\t// Enables the dragging ability\r\n\tenable: function () {\r\n\t\tif (this._enabled) { return; }\r\n\r\n\t\tL.DomEvent.on(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);\r\n\r\n\t\tthis._enabled = true;\r\n\t},\r\n\r\n\t// @method disable()\r\n\t// Disables the dragging ability\r\n\tdisable: function () {\r\n\t\tif (!this._enabled) { return; }\r\n\r\n\t\t// If we're currently dragging this draggable,\r\n\t\t// disabling it counts as first ending the drag.\r\n\t\tif (L.Draggable._dragging === this) {\r\n\t\t\tthis.finishDrag();\r\n\t\t}\r\n\r\n\t\tL.DomEvent.off(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);\r\n\r\n\t\tthis._enabled = false;\r\n\t\tthis._moved = false;\r\n\t},\r\n\r\n\t_onDown: function (e) {\r\n\t\t// Ignore simulated events, since we handle both touch and\r\n\t\t// mouse explicitly; otherwise we risk getting duplicates of\r\n\t\t// touch events, see #4315.\r\n\t\t// Also ignore the event if disabled; this happens in IE11\r\n\t\t// under some circumstances, see #3666.\r\n\t\tif (e._simulated || !this._enabled) { return; }\r\n\r\n\t\tthis._moved = false;\r\n\r\n\t\tif (L.DomUtil.hasClass(this._element, 'leaflet-zoom-anim')) { return; }\r\n\r\n\t\tif (L.Draggable._dragging || e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }\r\n\t\tL.Draggable._dragging = this;  // Prevent dragging multiple objects at once.\r\n\r\n\t\tif (this._preventOutline) {\r\n\t\t\tL.DomUtil.preventOutline(this._element);\r\n\t\t}\r\n\r\n\t\tL.DomUtil.disableImageDrag();\r\n\t\tL.DomUtil.disableTextSelection();\r\n\r\n\t\tif (this._moving) { return; }\r\n\r\n\t\t// @event down: Event\r\n\t\t// Fired when a drag is about to start.\r\n\t\tthis.fire('down');\r\n\r\n\t\tvar first = e.touches ? e.touches[0] : e;\r\n\r\n\t\tthis._startPoint = new L.Point(first.clientX, first.clientY);\r\n\r\n\t\tL.DomEvent\r\n\t\t\t.on(document, L.Draggable.MOVE[e.type], this._onMove, this)\r\n\t\t\t.on(document, L.Draggable.END[e.type], this._onUp, this);\r\n\t},\r\n\r\n\t_onMove: function (e) {\r\n\t\t// Ignore simulated events, since we handle both touch and\r\n\t\t// mouse explicitly; otherwise we risk getting duplicates of\r\n\t\t// touch events, see #4315.\r\n\t\t// Also ignore the event if disabled; this happens in IE11\r\n\t\t// under some circumstances, see #3666.\r\n\t\tif (e._simulated || !this._enabled) { return; }\r\n\r\n\t\tif (e.touches && e.touches.length > 1) {\r\n\t\t\tthis._moved = true;\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tvar first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),\r\n\t\t    newPoint = new L.Point(first.clientX, first.clientY),\r\n\t\t    offset = newPoint.subtract(this._startPoint);\r\n\r\n\t\tif (!offset.x && !offset.y) { return; }\r\n\t\tif (Math.abs(offset.x) + Math.abs(offset.y) < this.options.clickTolerance) { return; }\r\n\r\n\t\tL.DomEvent.preventDefault(e);\r\n\r\n\t\tif (!this._moved) {\r\n\t\t\t// @event dragstart: Event\r\n\t\t\t// Fired when a drag starts\r\n\t\t\tthis.fire('dragstart');\r\n\r\n\t\t\tthis._moved = true;\r\n\t\t\tthis._startPos = L.DomUtil.getPosition(this._element).subtract(offset);\r\n\r\n\t\t\tL.DomUtil.addClass(document.body, 'leaflet-dragging');\r\n\r\n\t\t\tthis._lastTarget = e.target || e.srcElement;\r\n\t\t\t// IE and Edge do not give the <use> element, so fetch it\r\n\t\t\t// if necessary\r\n\t\t\tif ((window.SVGElementInstance) && (this._lastTarget instanceof SVGElementInstance)) {\r\n\t\t\t\tthis._lastTarget = this._lastTarget.correspondingUseElement;\r\n\t\t\t}\r\n\t\t\tL.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target');\r\n\t\t}\r\n\r\n\t\tthis._newPos = this._startPos.add(offset);\r\n\t\tthis._moving = true;\r\n\r\n\t\tL.Util.cancelAnimFrame(this._animRequest);\r\n\t\tthis._lastEvent = e;\r\n\t\tthis._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true);\r\n\t},\r\n\r\n\t_updatePosition: function () {\r\n\t\tvar e = {originalEvent: this._lastEvent};\r\n\r\n\t\t// @event predrag: Event\r\n\t\t// Fired continuously during dragging *before* each corresponding\r\n\t\t// update of the element's position.\r\n\t\tthis.fire('predrag', e);\r\n\t\tL.DomUtil.setPosition(this._element, this._newPos);\r\n\r\n\t\t// @event drag: Event\r\n\t\t// Fired continuously during dragging.\r\n\t\tthis.fire('drag', e);\r\n\t},\r\n\r\n\t_onUp: function (e) {\r\n\t\t// Ignore simulated events, since we handle both touch and\r\n\t\t// mouse explicitly; otherwise we risk getting duplicates of\r\n\t\t// touch events, see #4315.\r\n\t\t// Also ignore the event if disabled; this happens in IE11\r\n\t\t// under some circumstances, see #3666.\r\n\t\tif (e._simulated || !this._enabled) { return; }\r\n\t\tthis.finishDrag();\r\n\t},\r\n\r\n\tfinishDrag: function () {\r\n\t\tL.DomUtil.removeClass(document.body, 'leaflet-dragging');\r\n\r\n\t\tif (this._lastTarget) {\r\n\t\t\tL.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target');\r\n\t\t\tthis._lastTarget = null;\r\n\t\t}\r\n\r\n\t\tfor (var i in L.Draggable.MOVE) {\r\n\t\t\tL.DomEvent\r\n\t\t\t\t.off(document, L.Draggable.MOVE[i], this._onMove, this)\r\n\t\t\t\t.off(document, L.Draggable.END[i], this._onUp, this);\r\n\t\t}\r\n\r\n\t\tL.DomUtil.enableImageDrag();\r\n\t\tL.DomUtil.enableTextSelection();\r\n\r\n\t\tif (this._moved && this._moving) {\r\n\t\t\t// ensure drag is not fired after dragend\r\n\t\t\tL.Util.cancelAnimFrame(this._animRequest);\r\n\r\n\t\t\t// @event dragend: DragEndEvent\r\n\t\t\t// Fired when the drag ends.\r\n\t\t\tthis.fire('dragend', {\r\n\t\t\t\tdistance: this._newPos.distanceTo(this._startPos)\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\tthis._moving = false;\r\n\t\tL.Draggable._dragging = false;\r\n\t}\r\n\r\n});\r\n\n\n\n/*\n\tL.Handler is a base class for handler classes that are used internally to inject\n\tinteraction features like dragging to classes like Map and Marker.\n*/\n\n// @class Handler\n// @aka L.Handler\n// Abstract class for map interaction handlers\n\nL.Handler = L.Class.extend({\n\tinitialize: function (map) {\n\t\tthis._map = map;\n\t},\n\n\t// @method enable(): this\n\t// Enables the handler\n\tenable: function () {\n\t\tif (this._enabled) { return this; }\n\n\t\tthis._enabled = true;\n\t\tthis.addHooks();\n\t\treturn this;\n\t},\n\n\t// @method disable(): this\n\t// Disables the handler\n\tdisable: function () {\n\t\tif (!this._enabled) { return this; }\n\n\t\tthis._enabled = false;\n\t\tthis.removeHooks();\n\t\treturn this;\n\t},\n\n\t// @method enabled(): Boolean\n\t// Returns `true` if the handler is enabled\n\tenabled: function () {\n\t\treturn !!this._enabled;\n\t}\n\n\t// @section Extension methods\n\t// Classes inheriting from `Handler` must implement the two following methods:\n\t// @method addHooks()\n\t// Called when the handler is enabled, should add event hooks.\n\t// @method removeHooks()\n\t// Called when the handler is disabled, should remove the event hooks added previously.\n});\n\n\n\n/*\n * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @option dragging: Boolean = true\n\t// Whether the map be draggable with mouse/touch or not.\n\tdragging: true,\n\n\t// @section Panning Inertia Options\n\t// @option inertia: Boolean = *\n\t// If enabled, panning of the map will have an inertia effect where\n\t// the map builds momentum while dragging and continues moving in\n\t// the same direction for some time. Feels especially nice on touch\n\t// devices. Enabled by default unless running on old Android devices.\n\tinertia: !L.Browser.android23,\n\n\t// @option inertiaDeceleration: Number = 3000\n\t// The rate with which the inertial movement slows down, in pixels/second².\n\tinertiaDeceleration: 3400, // px/s^2\n\n\t// @option inertiaMaxSpeed: Number = Infinity\n\t// Max speed of the inertial movement, in pixels/second.\n\tinertiaMaxSpeed: Infinity, // px/s\n\n\t// @option easeLinearity: Number = 0.2\n\teaseLinearity: 0.2,\n\n\t// TODO refactor, move to CRS\n\t// @option worldCopyJump: Boolean = false\n\t// With this option enabled, the map tracks when you pan to another \"copy\"\n\t// of the world and seamlessly jumps to the original one so that all overlays\n\t// like markers and vector layers are still visible.\n\tworldCopyJump: false,\n\n\t// @option maxBoundsViscosity: Number = 0.0\n\t// If `maxBounds` is set, this option will control how solid the bounds\n\t// are when dragging the map around. The default value of `0.0` allows the\n\t// user to drag outside the bounds at normal speed, higher values will\n\t// slow down map dragging outside bounds, and `1.0` makes the bounds fully\n\t// solid, preventing the user from dragging outside the bounds.\n\tmaxBoundsViscosity: 0.0\n});\n\nL.Map.Drag = L.Handler.extend({\n\taddHooks: function () {\n\t\tif (!this._draggable) {\n\t\t\tvar map = this._map;\n\n\t\t\tthis._draggable = new L.Draggable(map._mapPane, map._container);\n\n\t\t\tthis._draggable.on({\n\t\t\t\tdown: this._onDown,\n\t\t\t\tdragstart: this._onDragStart,\n\t\t\t\tdrag: this._onDrag,\n\t\t\t\tdragend: this._onDragEnd\n\t\t\t}, this);\n\n\t\t\tthis._draggable.on('predrag', this._onPreDragLimit, this);\n\t\t\tif (map.options.worldCopyJump) {\n\t\t\t\tthis._draggable.on('predrag', this._onPreDragWrap, this);\n\t\t\t\tmap.on('zoomend', this._onZoomEnd, this);\n\n\t\t\t\tmap.whenReady(this._onZoomEnd, this);\n\t\t\t}\n\t\t}\n\t\tL.DomUtil.addClass(this._map._container, 'leaflet-grab leaflet-touch-drag');\n\t\tthis._draggable.enable();\n\t\tthis._positions = [];\n\t\tthis._times = [];\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomUtil.removeClass(this._map._container, 'leaflet-grab');\n\t\tL.DomUtil.removeClass(this._map._container, 'leaflet-touch-drag');\n\t\tthis._draggable.disable();\n\t},\n\n\tmoved: function () {\n\t\treturn this._draggable && this._draggable._moved;\n\t},\n\n\tmoving: function () {\n\t\treturn this._draggable && this._draggable._moving;\n\t},\n\n\t_onDown: function () {\n\t\tthis._map._stop();\n\t},\n\n\t_onDragStart: function () {\n\t\tvar map = this._map;\n\n\t\tif (this._map.options.maxBounds && this._map.options.maxBoundsViscosity) {\n\t\t\tvar bounds = L.latLngBounds(this._map.options.maxBounds);\n\n\t\t\tthis._offsetLimit = L.bounds(\n\t\t\t\tthis._map.latLngToContainerPoint(bounds.getNorthWest()).multiplyBy(-1),\n\t\t\t\tthis._map.latLngToContainerPoint(bounds.getSouthEast()).multiplyBy(-1)\n\t\t\t\t\t.add(this._map.getSize()));\n\n\t\t\tthis._viscosity = Math.min(1.0, Math.max(0.0, this._map.options.maxBoundsViscosity));\n\t\t} else {\n\t\t\tthis._offsetLimit = null;\n\t\t}\n\n\t\tmap\n\t\t    .fire('movestart')\n\t\t    .fire('dragstart');\n\n\t\tif (map.options.inertia) {\n\t\t\tthis._positions = [];\n\t\t\tthis._times = [];\n\t\t}\n\t},\n\n\t_onDrag: function (e) {\n\t\tif (this._map.options.inertia) {\n\t\t\tvar time = this._lastTime = +new Date(),\n\t\t\t    pos = this._lastPos = this._draggable._absPos || this._draggable._newPos;\n\n\t\t\tthis._positions.push(pos);\n\t\t\tthis._times.push(time);\n\n\t\t\tif (time - this._times[0] > 50) {\n\t\t\t\tthis._positions.shift();\n\t\t\t\tthis._times.shift();\n\t\t\t}\n\t\t}\n\n\t\tthis._map\n\t\t    .fire('move', e)\n\t\t    .fire('drag', e);\n\t},\n\n\t_onZoomEnd: function () {\n\t\tvar pxCenter = this._map.getSize().divideBy(2),\n\t\t    pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);\n\n\t\tthis._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;\n\t\tthis._worldWidth = this._map.getPixelWorldBounds().getSize().x;\n\t},\n\n\t_viscousLimit: function (value, threshold) {\n\t\treturn value - (value - threshold) * this._viscosity;\n\t},\n\n\t_onPreDragLimit: function () {\n\t\tif (!this._viscosity || !this._offsetLimit) { return; }\n\n\t\tvar offset = this._draggable._newPos.subtract(this._draggable._startPos);\n\n\t\tvar limit = this._offsetLimit;\n\t\tif (offset.x < limit.min.x) { offset.x = this._viscousLimit(offset.x, limit.min.x); }\n\t\tif (offset.y < limit.min.y) { offset.y = this._viscousLimit(offset.y, limit.min.y); }\n\t\tif (offset.x > limit.max.x) { offset.x = this._viscousLimit(offset.x, limit.max.x); }\n\t\tif (offset.y > limit.max.y) { offset.y = this._viscousLimit(offset.y, limit.max.y); }\n\n\t\tthis._draggable._newPos = this._draggable._startPos.add(offset);\n\t},\n\n\t_onPreDragWrap: function () {\n\t\t// TODO refactor to be able to adjust map pane position after zoom\n\t\tvar worldWidth = this._worldWidth,\n\t\t    halfWidth = Math.round(worldWidth / 2),\n\t\t    dx = this._initialWorldOffset,\n\t\t    x = this._draggable._newPos.x,\n\t\t    newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx,\n\t\t    newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx,\n\t\t    newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2;\n\n\t\tthis._draggable._absPos = this._draggable._newPos.clone();\n\t\tthis._draggable._newPos.x = newX;\n\t},\n\n\t_onDragEnd: function (e) {\n\t\tvar map = this._map,\n\t\t    options = map.options,\n\n\t\t    noInertia = !options.inertia || this._times.length < 2;\n\n\t\tmap.fire('dragend', e);\n\n\t\tif (noInertia) {\n\t\t\tmap.fire('moveend');\n\n\t\t} else {\n\n\t\t\tvar direction = this._lastPos.subtract(this._positions[0]),\n\t\t\t    duration = (this._lastTime - this._times[0]) / 1000,\n\t\t\t    ease = options.easeLinearity,\n\n\t\t\t    speedVector = direction.multiplyBy(ease / duration),\n\t\t\t    speed = speedVector.distanceTo([0, 0]),\n\n\t\t\t    limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),\n\t\t\t    limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),\n\n\t\t\t    decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),\n\t\t\t    offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();\n\n\t\t\tif (!offset.x && !offset.y) {\n\t\t\t\tmap.fire('moveend');\n\n\t\t\t} else {\n\t\t\t\toffset = map._limitOffset(offset, map.options.maxBounds);\n\n\t\t\t\tL.Util.requestAnimFrame(function () {\n\t\t\t\t\tmap.panBy(offset, {\n\t\t\t\t\t\tduration: decelerationDuration,\n\t\t\t\t\t\teaseLinearity: ease,\n\t\t\t\t\t\tnoMoveStart: true,\n\t\t\t\t\t\tanimate: true\n\t\t\t\t\t});\n\t\t\t\t});\n\t\t\t}\n\t\t}\n\t}\n});\n\n// @section Handlers\n// @property dragging: Handler\n// Map dragging handler (by both mouse and touch).\nL.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);\n\n\n\n/*\n * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.\n */\n\n// @namespace Map\n// @section Interaction Options\n\nL.Map.mergeOptions({\n\t// @option doubleClickZoom: Boolean|String = true\n\t// Whether the map can be zoomed in by double clicking on it and\n\t// zoomed out by double clicking while holding shift. If passed\n\t// `'center'`, double-click zoom will zoom to the center of the\n\t//  view regardless of where the mouse was.\n\tdoubleClickZoom: true\n});\n\nL.Map.DoubleClickZoom = L.Handler.extend({\n\taddHooks: function () {\n\t\tthis._map.on('dblclick', this._onDoubleClick, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tthis._map.off('dblclick', this._onDoubleClick, this);\n\t},\n\n\t_onDoubleClick: function (e) {\n\t\tvar map = this._map,\n\t\t    oldZoom = map.getZoom(),\n\t\t    delta = map.options.zoomDelta,\n\t\t    zoom = e.originalEvent.shiftKey ? oldZoom - delta : oldZoom + delta;\n\n\t\tif (map.options.doubleClickZoom === 'center') {\n\t\t\tmap.setZoom(zoom);\n\t\t} else {\n\t\t\tmap.setZoomAround(e.containerPoint, zoom);\n\t\t}\n\t}\n});\n\n// @section Handlers\n//\n// Map properties include interaction handlers that allow you to control\n// interaction behavior in runtime, enabling or disabling certain features such\n// as dragging or touch zoom (see `Handler` methods). For example:\n//\n// ```js\n// map.doubleClickZoom.disable();\n// ```\n//\n// @property doubleClickZoom: Handler\n// Double click zoom handler.\nL.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);\n\n\n\n/*\n * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @section Mousewheel options\n\t// @option scrollWheelZoom: Boolean|String = true\n\t// Whether the map can be zoomed by using the mouse wheel. If passed `'center'`,\n\t// it will zoom to the center of the view regardless of where the mouse was.\n\tscrollWheelZoom: true,\n\n\t// @option wheelDebounceTime: Number = 40\n\t// Limits the rate at which a wheel can fire (in milliseconds). By default\n\t// user can't zoom via wheel more often than once per 40 ms.\n\twheelDebounceTime: 40,\n\n\t// @option wheelPxPerZoomLevel: Number = 60\n\t// How many scroll pixels (as reported by [L.DomEvent.getWheelDelta](#domevent-getwheeldelta))\n\t// mean a change of one full zoom level. Smaller values will make wheel-zooming\n\t// faster (and vice versa).\n\twheelPxPerZoomLevel: 60\n});\n\nL.Map.ScrollWheelZoom = L.Handler.extend({\n\taddHooks: function () {\n\t\tL.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this);\n\n\t\tthis._delta = 0;\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll, this);\n\t},\n\n\t_onWheelScroll: function (e) {\n\t\tvar delta = L.DomEvent.getWheelDelta(e);\n\n\t\tvar debounce = this._map.options.wheelDebounceTime;\n\n\t\tthis._delta += delta;\n\t\tthis._lastMousePos = this._map.mouseEventToContainerPoint(e);\n\n\t\tif (!this._startTime) {\n\t\t\tthis._startTime = +new Date();\n\t\t}\n\n\t\tvar left = Math.max(debounce - (+new Date() - this._startTime), 0);\n\n\t\tclearTimeout(this._timer);\n\t\tthis._timer = setTimeout(L.bind(this._performZoom, this), left);\n\n\t\tL.DomEvent.stop(e);\n\t},\n\n\t_performZoom: function () {\n\t\tvar map = this._map,\n\t\t    zoom = map.getZoom(),\n\t\t    snap = this._map.options.zoomSnap || 0;\n\n\t\tmap._stop(); // stop panning and fly animations if any\n\n\t\t// map the delta with a sigmoid function to -4..4 range leaning on -1..1\n\t\tvar d2 = this._delta / (this._map.options.wheelPxPerZoomLevel * 4),\n\t\t    d3 = 4 * Math.log(2 / (1 + Math.exp(-Math.abs(d2)))) / Math.LN2,\n\t\t    d4 = snap ? Math.ceil(d3 / snap) * snap : d3,\n\t\t    delta = map._limitZoom(zoom + (this._delta > 0 ? d4 : -d4)) - zoom;\n\n\t\tthis._delta = 0;\n\t\tthis._startTime = null;\n\n\t\tif (!delta) { return; }\n\n\t\tif (map.options.scrollWheelZoom === 'center') {\n\t\t\tmap.setZoom(zoom + delta);\n\t\t} else {\n\t\t\tmap.setZoomAround(this._lastMousePos, zoom + delta);\n\t\t}\n\t}\n});\n\n// @section Handlers\n// @property scrollWheelZoom: Handler\n// Scroll wheel zoom handler.\nL.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);\n\n\n\n/*\r\n * Extends the event handling code with double tap support for mobile browsers.\r\n */\r\n\r\nL.extend(L.DomEvent, {\r\n\r\n\t_touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart',\r\n\t_touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend',\r\n\r\n\t// inspired by Zepto touch code by Thomas Fuchs\r\n\taddDoubleTapListener: function (obj, handler, id) {\r\n\t\tvar last, touch,\r\n\t\t    doubleTap = false,\r\n\t\t    delay = 250;\r\n\r\n\t\tfunction onTouchStart(e) {\r\n\t\t\tvar count;\r\n\r\n\t\t\tif (L.Browser.pointer) {\r\n\t\t\t\tcount = L.DomEvent._pointersCount;\r\n\t\t\t} else {\r\n\t\t\t\tcount = e.touches.length;\r\n\t\t\t}\r\n\r\n\t\t\tif (count > 1) { return; }\r\n\r\n\t\t\tvar now = Date.now(),\r\n\t\t\t    delta = now - (last || now);\r\n\r\n\t\t\ttouch = e.touches ? e.touches[0] : e;\r\n\t\t\tdoubleTap = (delta > 0 && delta <= delay);\r\n\t\t\tlast = now;\r\n\t\t}\r\n\r\n\t\tfunction onTouchEnd() {\r\n\t\t\tif (doubleTap && !touch.cancelBubble) {\r\n\t\t\t\tif (L.Browser.pointer) {\r\n\t\t\t\t\t// work around .type being readonly with MSPointer* events\r\n\t\t\t\t\tvar newTouch = {},\r\n\t\t\t\t\t    prop, i;\r\n\r\n\t\t\t\t\tfor (i in touch) {\r\n\t\t\t\t\t\tprop = touch[i];\r\n\t\t\t\t\t\tnewTouch[i] = prop && prop.bind ? prop.bind(touch) : prop;\r\n\t\t\t\t\t}\r\n\t\t\t\t\ttouch = newTouch;\r\n\t\t\t\t}\r\n\t\t\t\ttouch.type = 'dblclick';\r\n\t\t\t\thandler(touch);\r\n\t\t\t\tlast = null;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tvar pre = '_leaflet_',\r\n\t\t    touchstart = this._touchstart,\r\n\t\t    touchend = this._touchend;\r\n\r\n\t\tobj[pre + touchstart + id] = onTouchStart;\r\n\t\tobj[pre + touchend + id] = onTouchEnd;\r\n\t\tobj[pre + 'dblclick' + id] = handler;\r\n\r\n\t\tobj.addEventListener(touchstart, onTouchStart, false);\r\n\t\tobj.addEventListener(touchend, onTouchEnd, false);\r\n\r\n\t\t// On some platforms (notably, chrome on win10 + touchscreen + mouse),\r\n\t\t// the browser doesn't fire touchend/pointerup events but does fire\r\n\t\t// native dblclicks. See #4127.\r\n\t\tif (!L.Browser.edge) {\r\n\t\t\tobj.addEventListener('dblclick', handler, false);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\tremoveDoubleTapListener: function (obj, id) {\r\n\t\tvar pre = '_leaflet_',\r\n\t\t    touchstart = obj[pre + this._touchstart + id],\r\n\t\t    touchend = obj[pre + this._touchend + id],\r\n\t\t    dblclick = obj[pre + 'dblclick' + id];\r\n\r\n\t\tobj.removeEventListener(this._touchstart, touchstart, false);\r\n\t\tobj.removeEventListener(this._touchend, touchend, false);\r\n\t\tif (!L.Browser.edge) {\r\n\t\t\tobj.removeEventListener('dblclick', dblclick, false);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t}\r\n});\r\n\n\n\n/*\n * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.\n */\n\nL.extend(L.DomEvent, {\n\n\tPOINTER_DOWN:   L.Browser.msPointer ? 'MSPointerDown'   : 'pointerdown',\n\tPOINTER_MOVE:   L.Browser.msPointer ? 'MSPointerMove'   : 'pointermove',\n\tPOINTER_UP:     L.Browser.msPointer ? 'MSPointerUp'     : 'pointerup',\n\tPOINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel',\n\tTAG_WHITE_LIST: ['INPUT', 'SELECT', 'OPTION'],\n\n\t_pointers: {},\n\t_pointersCount: 0,\n\n\t// Provides a touch events wrapper for (ms)pointer events.\n\t// ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890\n\n\taddPointerListener: function (obj, type, handler, id) {\n\n\t\tif (type === 'touchstart') {\n\t\t\tthis._addPointerStart(obj, handler, id);\n\n\t\t} else if (type === 'touchmove') {\n\t\t\tthis._addPointerMove(obj, handler, id);\n\n\t\t} else if (type === 'touchend') {\n\t\t\tthis._addPointerEnd(obj, handler, id);\n\t\t}\n\n\t\treturn this;\n\t},\n\n\tremovePointerListener: function (obj, type, id) {\n\t\tvar handler = obj['_leaflet_' + type + id];\n\n\t\tif (type === 'touchstart') {\n\t\t\tobj.removeEventListener(this.POINTER_DOWN, handler, false);\n\n\t\t} else if (type === 'touchmove') {\n\t\t\tobj.removeEventListener(this.POINTER_MOVE, handler, false);\n\n\t\t} else if (type === 'touchend') {\n\t\t\tobj.removeEventListener(this.POINTER_UP, handler, false);\n\t\t\tobj.removeEventListener(this.POINTER_CANCEL, handler, false);\n\t\t}\n\n\t\treturn this;\n\t},\n\n\t_addPointerStart: function (obj, handler, id) {\n\t\tvar onDown = L.bind(function (e) {\n\t\t\tif (e.pointerType !== 'mouse' && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) {\n\t\t\t\t// In IE11, some touch events needs to fire for form controls, or\n\t\t\t\t// the controls will stop working. We keep a whitelist of tag names that\n\t\t\t\t// need these events. For other target tags, we prevent default on the event.\n\t\t\t\tif (this.TAG_WHITE_LIST.indexOf(e.target.tagName) < 0) {\n\t\t\t\t\tL.DomEvent.preventDefault(e);\n\t\t\t\t} else {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tthis._handlePointer(e, handler);\n\t\t}, this);\n\n\t\tobj['_leaflet_touchstart' + id] = onDown;\n\t\tobj.addEventListener(this.POINTER_DOWN, onDown, false);\n\n\t\t// need to keep track of what pointers and how many are active to provide e.touches emulation\n\t\tif (!this._pointerDocListener) {\n\t\t\tvar pointerUp = L.bind(this._globalPointerUp, this);\n\n\t\t\t// we listen documentElement as any drags that end by moving the touch off the screen get fired there\n\t\t\tdocument.documentElement.addEventListener(this.POINTER_DOWN, L.bind(this._globalPointerDown, this), true);\n\t\t\tdocument.documentElement.addEventListener(this.POINTER_MOVE, L.bind(this._globalPointerMove, this), true);\n\t\t\tdocument.documentElement.addEventListener(this.POINTER_UP, pointerUp, true);\n\t\t\tdocument.documentElement.addEventListener(this.POINTER_CANCEL, pointerUp, true);\n\n\t\t\tthis._pointerDocListener = true;\n\t\t}\n\t},\n\n\t_globalPointerDown: function (e) {\n\t\tthis._pointers[e.pointerId] = e;\n\t\tthis._pointersCount++;\n\t},\n\n\t_globalPointerMove: function (e) {\n\t\tif (this._pointers[e.pointerId]) {\n\t\t\tthis._pointers[e.pointerId] = e;\n\t\t}\n\t},\n\n\t_globalPointerUp: function (e) {\n\t\tdelete this._pointers[e.pointerId];\n\t\tthis._pointersCount--;\n\t},\n\n\t_handlePointer: function (e, handler) {\n\t\te.touches = [];\n\t\tfor (var i in this._pointers) {\n\t\t\te.touches.push(this._pointers[i]);\n\t\t}\n\t\te.changedTouches = [e];\n\n\t\thandler(e);\n\t},\n\n\t_addPointerMove: function (obj, handler, id) {\n\t\tvar onMove = L.bind(function (e) {\n\t\t\t// don't fire touch moves when mouse isn't down\n\t\t\tif ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }\n\n\t\t\tthis._handlePointer(e, handler);\n\t\t}, this);\n\n\t\tobj['_leaflet_touchmove' + id] = onMove;\n\t\tobj.addEventListener(this.POINTER_MOVE, onMove, false);\n\t},\n\n\t_addPointerEnd: function (obj, handler, id) {\n\t\tvar onUp = L.bind(function (e) {\n\t\t\tthis._handlePointer(e, handler);\n\t\t}, this);\n\n\t\tobj['_leaflet_touchend' + id] = onUp;\n\t\tobj.addEventListener(this.POINTER_UP, onUp, false);\n\t\tobj.addEventListener(this.POINTER_CANCEL, onUp, false);\n\t}\n});\n\n\n\n/*\n * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @section Touch interaction options\n\t// @option touchZoom: Boolean|String = *\n\t// Whether the map can be zoomed by touch-dragging with two fingers. If\n\t// passed `'center'`, it will zoom to the center of the view regardless of\n\t// where the touch events (fingers) were. Enabled for touch-capable web\n\t// browsers except for old Androids.\n\ttouchZoom: L.Browser.touch && !L.Browser.android23,\n\n\t// @option bounceAtZoomLimits: Boolean = true\n\t// Set it to false if you don't want the map to zoom beyond min/max zoom\n\t// and then bounce back when pinch-zooming.\n\tbounceAtZoomLimits: true\n});\n\nL.Map.TouchZoom = L.Handler.extend({\n\taddHooks: function () {\n\t\tL.DomUtil.addClass(this._map._container, 'leaflet-touch-zoom');\n\t\tL.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomUtil.removeClass(this._map._container, 'leaflet-touch-zoom');\n\t\tL.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);\n\t},\n\n\t_onTouchStart: function (e) {\n\t\tvar map = this._map;\n\t\tif (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }\n\n\t\tvar p1 = map.mouseEventToContainerPoint(e.touches[0]),\n\t\t    p2 = map.mouseEventToContainerPoint(e.touches[1]);\n\n\t\tthis._centerPoint = map.getSize()._divideBy(2);\n\t\tthis._startLatLng = map.containerPointToLatLng(this._centerPoint);\n\t\tif (map.options.touchZoom !== 'center') {\n\t\t\tthis._pinchStartLatLng = map.containerPointToLatLng(p1.add(p2)._divideBy(2));\n\t\t}\n\n\t\tthis._startDist = p1.distanceTo(p2);\n\t\tthis._startZoom = map.getZoom();\n\n\t\tthis._moved = false;\n\t\tthis._zooming = true;\n\n\t\tmap._stop();\n\n\t\tL.DomEvent\n\t\t    .on(document, 'touchmove', this._onTouchMove, this)\n\t\t    .on(document, 'touchend', this._onTouchEnd, this);\n\n\t\tL.DomEvent.preventDefault(e);\n\t},\n\n\t_onTouchMove: function (e) {\n\t\tif (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }\n\n\t\tvar map = this._map,\n\t\t    p1 = map.mouseEventToContainerPoint(e.touches[0]),\n\t\t    p2 = map.mouseEventToContainerPoint(e.touches[1]),\n\t\t    scale = p1.distanceTo(p2) / this._startDist;\n\n\n\t\tthis._zoom = map.getScaleZoom(scale, this._startZoom);\n\n\t\tif (!map.options.bounceAtZoomLimits && (\n\t\t\t(this._zoom < map.getMinZoom() && scale < 1) ||\n\t\t\t(this._zoom > map.getMaxZoom() && scale > 1))) {\n\t\t\tthis._zoom = map._limitZoom(this._zoom);\n\t\t}\n\n\t\tif (map.options.touchZoom === 'center') {\n\t\t\tthis._center = this._startLatLng;\n\t\t\tif (scale === 1) { return; }\n\t\t} else {\n\t\t\t// Get delta from pinch to center, so centerLatLng is delta applied to initial pinchLatLng\n\t\t\tvar delta = p1._add(p2)._divideBy(2)._subtract(this._centerPoint);\n\t\t\tif (scale === 1 && delta.x === 0 && delta.y === 0) { return; }\n\t\t\tthis._center = map.unproject(map.project(this._pinchStartLatLng, this._zoom).subtract(delta), this._zoom);\n\t\t}\n\n\t\tif (!this._moved) {\n\t\t\tmap._moveStart(true);\n\t\t\tthis._moved = true;\n\t\t}\n\n\t\tL.Util.cancelAnimFrame(this._animRequest);\n\n\t\tvar moveFn = L.bind(map._move, map, this._center, this._zoom, {pinch: true, round: false});\n\t\tthis._animRequest = L.Util.requestAnimFrame(moveFn, this, true);\n\n\t\tL.DomEvent.preventDefault(e);\n\t},\n\n\t_onTouchEnd: function () {\n\t\tif (!this._moved || !this._zooming) {\n\t\t\tthis._zooming = false;\n\t\t\treturn;\n\t\t}\n\n\t\tthis._zooming = false;\n\t\tL.Util.cancelAnimFrame(this._animRequest);\n\n\t\tL.DomEvent\n\t\t    .off(document, 'touchmove', this._onTouchMove)\n\t\t    .off(document, 'touchend', this._onTouchEnd);\n\n\t\t// Pinch updates GridLayers' levels only when zoomSnap is off, so zoomSnap becomes noUpdate.\n\t\tif (this._map.options.zoomAnimation) {\n\t\t\tthis._map._animateZoom(this._center, this._map._limitZoom(this._zoom), true, this._map.options.zoomSnap);\n\t\t} else {\n\t\t\tthis._map._resetView(this._center, this._map._limitZoom(this._zoom));\n\t\t}\n\t}\n});\n\n// @section Handlers\n// @property touchZoom: Handler\n// Touch zoom handler.\nL.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);\n\n\n\n/*\n * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @section Touch interaction options\n\t// @option tap: Boolean = true\n\t// Enables mobile hacks for supporting instant taps (fixing 200ms click\n\t// delay on iOS/Android) and touch holds (fired as `contextmenu` events).\n\ttap: true,\n\n\t// @option tapTolerance: Number = 15\n\t// The max number of pixels a user can shift his finger during touch\n\t// for it to be considered a valid tap.\n\ttapTolerance: 15\n});\n\nL.Map.Tap = L.Handler.extend({\n\taddHooks: function () {\n\t\tL.DomEvent.on(this._map._container, 'touchstart', this._onDown, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomEvent.off(this._map._container, 'touchstart', this._onDown, this);\n\t},\n\n\t_onDown: function (e) {\n\t\tif (!e.touches) { return; }\n\n\t\tL.DomEvent.preventDefault(e);\n\n\t\tthis._fireClick = true;\n\n\t\t// don't simulate click or track longpress if more than 1 touch\n\t\tif (e.touches.length > 1) {\n\t\t\tthis._fireClick = false;\n\t\t\tclearTimeout(this._holdTimeout);\n\t\t\treturn;\n\t\t}\n\n\t\tvar first = e.touches[0],\n\t\t    el = first.target;\n\n\t\tthis._startPos = this._newPos = new L.Point(first.clientX, first.clientY);\n\n\t\t// if touching a link, highlight it\n\t\tif (el.tagName && el.tagName.toLowerCase() === 'a') {\n\t\t\tL.DomUtil.addClass(el, 'leaflet-active');\n\t\t}\n\n\t\t// simulate long hold but setting a timeout\n\t\tthis._holdTimeout = setTimeout(L.bind(function () {\n\t\t\tif (this._isTapValid()) {\n\t\t\t\tthis._fireClick = false;\n\t\t\t\tthis._onUp();\n\t\t\t\tthis._simulateEvent('contextmenu', first);\n\t\t\t}\n\t\t}, this), 1000);\n\n\t\tthis._simulateEvent('mousedown', first);\n\n\t\tL.DomEvent.on(document, {\n\t\t\ttouchmove: this._onMove,\n\t\t\ttouchend: this._onUp\n\t\t}, this);\n\t},\n\n\t_onUp: function (e) {\n\t\tclearTimeout(this._holdTimeout);\n\n\t\tL.DomEvent.off(document, {\n\t\t\ttouchmove: this._onMove,\n\t\t\ttouchend: this._onUp\n\t\t}, this);\n\n\t\tif (this._fireClick && e && e.changedTouches) {\n\n\t\t\tvar first = e.changedTouches[0],\n\t\t\t    el = first.target;\n\n\t\t\tif (el && el.tagName && el.tagName.toLowerCase() === 'a') {\n\t\t\t\tL.DomUtil.removeClass(el, 'leaflet-active');\n\t\t\t}\n\n\t\t\tthis._simulateEvent('mouseup', first);\n\n\t\t\t// simulate click if the touch didn't move too much\n\t\t\tif (this._isTapValid()) {\n\t\t\t\tthis._simulateEvent('click', first);\n\t\t\t}\n\t\t}\n\t},\n\n\t_isTapValid: function () {\n\t\treturn this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;\n\t},\n\n\t_onMove: function (e) {\n\t\tvar first = e.touches[0];\n\t\tthis._newPos = new L.Point(first.clientX, first.clientY);\n\t\tthis._simulateEvent('mousemove', first);\n\t},\n\n\t_simulateEvent: function (type, e) {\n\t\tvar simulatedEvent = document.createEvent('MouseEvents');\n\n\t\tsimulatedEvent._simulated = true;\n\t\te.target._simulatedClick = true;\n\n\t\tsimulatedEvent.initMouseEvent(\n\t\t        type, true, true, window, 1,\n\t\t        e.screenX, e.screenY,\n\t\t        e.clientX, e.clientY,\n\t\t        false, false, false, false, 0, null);\n\n\t\te.target.dispatchEvent(simulatedEvent);\n\t}\n});\n\n// @section Handlers\n// @property tap: Handler\n// Mobile touch hacks (quick tap and touch hold) handler.\nif (L.Browser.touch && !L.Browser.pointer) {\n\tL.Map.addInitHook('addHandler', 'tap', L.Map.Tap);\n}\n\n\n\n/*\n * L.Handler.BoxZoom is used to add shift-drag zoom interaction to the map\n * (zoom to a selected bounding box), enabled by default.\n */\n\n// @namespace Map\n// @section Interaction Options\nL.Map.mergeOptions({\n\t// @option boxZoom: Boolean = true\n\t// Whether the map can be zoomed to a rectangular area specified by\n\t// dragging the mouse while pressing the shift key.\n\tboxZoom: true\n});\n\nL.Map.BoxZoom = L.Handler.extend({\n\tinitialize: function (map) {\n\t\tthis._map = map;\n\t\tthis._container = map._container;\n\t\tthis._pane = map._panes.overlayPane;\n\t},\n\n\taddHooks: function () {\n\t\tL.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tL.DomEvent.off(this._container, 'mousedown', this._onMouseDown, this);\n\t},\n\n\tmoved: function () {\n\t\treturn this._moved;\n\t},\n\n\t_resetState: function () {\n\t\tthis._moved = false;\n\t},\n\n\t_onMouseDown: function (e) {\n\t\tif (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }\n\n\t\tthis._resetState();\n\n\t\tL.DomUtil.disableTextSelection();\n\t\tL.DomUtil.disableImageDrag();\n\n\t\tthis._startPoint = this._map.mouseEventToContainerPoint(e);\n\n\t\tL.DomEvent.on(document, {\n\t\t\tcontextmenu: L.DomEvent.stop,\n\t\t\tmousemove: this._onMouseMove,\n\t\t\tmouseup: this._onMouseUp,\n\t\t\tkeydown: this._onKeyDown\n\t\t}, this);\n\t},\n\n\t_onMouseMove: function (e) {\n\t\tif (!this._moved) {\n\t\t\tthis._moved = true;\n\n\t\t\tthis._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._container);\n\t\t\tL.DomUtil.addClass(this._container, 'leaflet-crosshair');\n\n\t\t\tthis._map.fire('boxzoomstart');\n\t\t}\n\n\t\tthis._point = this._map.mouseEventToContainerPoint(e);\n\n\t\tvar bounds = new L.Bounds(this._point, this._startPoint),\n\t\t    size = bounds.getSize();\n\n\t\tL.DomUtil.setPosition(this._box, bounds.min);\n\n\t\tthis._box.style.width  = size.x + 'px';\n\t\tthis._box.style.height = size.y + 'px';\n\t},\n\n\t_finish: function () {\n\t\tif (this._moved) {\n\t\t\tL.DomUtil.remove(this._box);\n\t\t\tL.DomUtil.removeClass(this._container, 'leaflet-crosshair');\n\t\t}\n\n\t\tL.DomUtil.enableTextSelection();\n\t\tL.DomUtil.enableImageDrag();\n\n\t\tL.DomEvent.off(document, {\n\t\t\tcontextmenu: L.DomEvent.stop,\n\t\t\tmousemove: this._onMouseMove,\n\t\t\tmouseup: this._onMouseUp,\n\t\t\tkeydown: this._onKeyDown\n\t\t}, this);\n\t},\n\n\t_onMouseUp: function (e) {\n\t\tif ((e.which !== 1) && (e.button !== 1)) { return; }\n\n\t\tthis._finish();\n\n\t\tif (!this._moved) { return; }\n\t\t// Postpone to next JS tick so internal click event handling\n\t\t// still see it as \"moved\".\n\t\tsetTimeout(L.bind(this._resetState, this), 0);\n\n\t\tvar bounds = new L.LatLngBounds(\n\t\t        this._map.containerPointToLatLng(this._startPoint),\n\t\t        this._map.containerPointToLatLng(this._point));\n\n\t\tthis._map\n\t\t\t.fitBounds(bounds)\n\t\t\t.fire('boxzoomend', {boxZoomBounds: bounds});\n\t},\n\n\t_onKeyDown: function (e) {\n\t\tif (e.keyCode === 27) {\n\t\t\tthis._finish();\n\t\t}\n\t}\n});\n\n// @section Handlers\n// @property boxZoom: Handler\n// Box (shift-drag with mouse) zoom handler.\nL.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);\n\n\n\n/*\n * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default.\n */\n\n// @namespace Map\n// @section Keyboard Navigation Options\nL.Map.mergeOptions({\n\t// @option keyboard: Boolean = true\n\t// Makes the map focusable and allows users to navigate the map with keyboard\n\t// arrows and `+`/`-` keys.\n\tkeyboard: true,\n\n\t// @option keyboardPanDelta: Number = 80\n\t// Amount of pixels to pan when pressing an arrow key.\n\tkeyboardPanDelta: 80\n});\n\nL.Map.Keyboard = L.Handler.extend({\n\n\tkeyCodes: {\n\t\tleft:    [37],\n\t\tright:   [39],\n\t\tdown:    [40],\n\t\tup:      [38],\n\t\tzoomIn:  [187, 107, 61, 171],\n\t\tzoomOut: [189, 109, 54, 173]\n\t},\n\n\tinitialize: function (map) {\n\t\tthis._map = map;\n\n\t\tthis._setPanDelta(map.options.keyboardPanDelta);\n\t\tthis._setZoomDelta(map.options.zoomDelta);\n\t},\n\n\taddHooks: function () {\n\t\tvar container = this._map._container;\n\n\t\t// make the container focusable by tabbing\n\t\tif (container.tabIndex <= 0) {\n\t\t\tcontainer.tabIndex = '0';\n\t\t}\n\n\t\tL.DomEvent.on(container, {\n\t\t\tfocus: this._onFocus,\n\t\t\tblur: this._onBlur,\n\t\t\tmousedown: this._onMouseDown\n\t\t}, this);\n\n\t\tthis._map.on({\n\t\t\tfocus: this._addHooks,\n\t\t\tblur: this._removeHooks\n\t\t}, this);\n\t},\n\n\tremoveHooks: function () {\n\t\tthis._removeHooks();\n\n\t\tL.DomEvent.off(this._map._container, {\n\t\t\tfocus: this._onFocus,\n\t\t\tblur: this._onBlur,\n\t\t\tmousedown: this._onMouseDown\n\t\t}, this);\n\n\t\tthis._map.off({\n\t\t\tfocus: this._addHooks,\n\t\t\tblur: this._removeHooks\n\t\t}, this);\n\t},\n\n\t_onMouseDown: function () {\n\t\tif (this._focused) { return; }\n\n\t\tvar body = document.body,\n\t\t    docEl = document.documentElement,\n\t\t    top = body.scrollTop || docEl.scrollTop,\n\t\t    left = body.scrollLeft || docEl.scrollLeft;\n\n\t\tthis._map._container.focus();\n\n\t\twindow.scrollTo(left, top);\n\t},\n\n\t_onFocus: function () {\n\t\tthis._focused = true;\n\t\tthis._map.fire('focus');\n\t},\n\n\t_onBlur: function () {\n\t\tthis._focused = false;\n\t\tthis._map.fire('blur');\n\t},\n\n\t_setPanDelta: function (panDelta) {\n\t\tvar keys = this._panKeys = {},\n\t\t    codes = this.keyCodes,\n\t\t    i, len;\n\n\t\tfor (i = 0, len = codes.left.length; i < len; i++) {\n\t\t\tkeys[codes.left[i]] = [-1 * panDelta, 0];\n\t\t}\n\t\tfor (i = 0, len = codes.right.length; i < len; i++) {\n\t\t\tkeys[codes.right[i]] = [panDelta, 0];\n\t\t}\n\t\tfor (i = 0, len = codes.down.length; i < len; i++) {\n\t\t\tkeys[codes.down[i]] = [0, panDelta];\n\t\t}\n\t\tfor (i = 0, len = codes.up.length; i < len; i++) {\n\t\t\tkeys[codes.up[i]] = [0, -1 * panDelta];\n\t\t}\n\t},\n\n\t_setZoomDelta: function (zoomDelta) {\n\t\tvar keys = this._zoomKeys = {},\n\t\t    codes = this.keyCodes,\n\t\t    i, len;\n\n\t\tfor (i = 0, len = codes.zoomIn.length; i < len; i++) {\n\t\t\tkeys[codes.zoomIn[i]] = zoomDelta;\n\t\t}\n\t\tfor (i = 0, len = codes.zoomOut.length; i < len; i++) {\n\t\t\tkeys[codes.zoomOut[i]] = -zoomDelta;\n\t\t}\n\t},\n\n\t_addHooks: function () {\n\t\tL.DomEvent.on(document, 'keydown', this._onKeyDown, this);\n\t},\n\n\t_removeHooks: function () {\n\t\tL.DomEvent.off(document, 'keydown', this._onKeyDown, this);\n\t},\n\n\t_onKeyDown: function (e) {\n\t\tif (e.altKey || e.ctrlKey || e.metaKey) { return; }\n\n\t\tvar key = e.keyCode,\n\t\t    map = this._map,\n\t\t    offset;\n\n\t\tif (key in this._panKeys) {\n\n\t\t\tif (map._panAnim && map._panAnim._inProgress) { return; }\n\n\t\t\toffset = this._panKeys[key];\n\t\t\tif (e.shiftKey) {\n\t\t\t\toffset = L.point(offset).multiplyBy(3);\n\t\t\t}\n\n\t\t\tmap.panBy(offset);\n\n\t\t\tif (map.options.maxBounds) {\n\t\t\t\tmap.panInsideBounds(map.options.maxBounds);\n\t\t\t}\n\n\t\t} else if (key in this._zoomKeys) {\n\t\t\tmap.setZoom(map.getZoom() + (e.shiftKey ? 3 : 1) * this._zoomKeys[key]);\n\n\t\t} else if (key === 27) {\n\t\t\tmap.closePopup();\n\n\t\t} else {\n\t\t\treturn;\n\t\t}\n\n\t\tL.DomEvent.stop(e);\n\t}\n});\n\n// @section Handlers\n// @section Handlers\n// @property keyboard: Handler\n// Keyboard navigation handler.\nL.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard);\n\n\n\n/*\n * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.\n */\n\n\n/* @namespace Marker\n * @section Interaction handlers\n *\n * Interaction handlers are properties of a marker instance that allow you to control interaction behavior in runtime, enabling or disabling certain features such as dragging (see `Handler` methods). Example:\n *\n * ```js\n * marker.dragging.disable();\n * ```\n *\n * @property dragging: Handler\n * Marker dragging handler (by both mouse and touch).\n */\n\nL.Handler.MarkerDrag = L.Handler.extend({\n\tinitialize: function (marker) {\n\t\tthis._marker = marker;\n\t},\n\n\taddHooks: function () {\n\t\tvar icon = this._marker._icon;\n\n\t\tif (!this._draggable) {\n\t\t\tthis._draggable = new L.Draggable(icon, icon, true);\n\t\t}\n\n\t\tthis._draggable.on({\n\t\t\tdragstart: this._onDragStart,\n\t\t\tdrag: this._onDrag,\n\t\t\tdragend: this._onDragEnd\n\t\t}, this).enable();\n\n\t\tL.DomUtil.addClass(icon, 'leaflet-marker-draggable');\n\t},\n\n\tremoveHooks: function () {\n\t\tthis._draggable.off({\n\t\t\tdragstart: this._onDragStart,\n\t\t\tdrag: this._onDrag,\n\t\t\tdragend: this._onDragEnd\n\t\t}, this).disable();\n\n\t\tif (this._marker._icon) {\n\t\t\tL.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable');\n\t\t}\n\t},\n\n\tmoved: function () {\n\t\treturn this._draggable && this._draggable._moved;\n\t},\n\n\t_onDragStart: function () {\n\t\t// @section Dragging events\n\t\t// @event dragstart: Event\n\t\t// Fired when the user starts dragging the marker.\n\n\t\t// @event movestart: Event\n\t\t// Fired when the marker starts moving (because of dragging).\n\n\t\tthis._oldLatLng = this._marker.getLatLng();\n\t\tthis._marker\n\t\t    .closePopup()\n\t\t    .fire('movestart')\n\t\t    .fire('dragstart');\n\t},\n\n\t_onDrag: function (e) {\n\t\tvar marker = this._marker,\n\t\t    shadow = marker._shadow,\n\t\t    iconPos = L.DomUtil.getPosition(marker._icon),\n\t\t    latlng = marker._map.layerPointToLatLng(iconPos);\n\n\t\t// update shadow position\n\t\tif (shadow) {\n\t\t\tL.DomUtil.setPosition(shadow, iconPos);\n\t\t}\n\n\t\tmarker._latlng = latlng;\n\t\te.latlng = latlng;\n\t\te.oldLatLng = this._oldLatLng;\n\n\t\t// @event drag: Event\n\t\t// Fired repeatedly while the user drags the marker.\n\t\tmarker\n\t\t    .fire('move', e)\n\t\t    .fire('drag', e);\n\t},\n\n\t_onDragEnd: function (e) {\n\t\t// @event dragend: DragEndEvent\n\t\t// Fired when the user stops dragging the marker.\n\n\t\t// @event moveend: Event\n\t\t// Fired when the marker stops moving (because of dragging).\n\t\tdelete this._oldLatLng;\n\t\tthis._marker\n\t\t    .fire('moveend')\n\t\t    .fire('dragend', e);\n\t}\n});\n\n\n\n/*\r\n * @class Control\r\n * @aka L.Control\r\n * @inherits Class\r\n *\r\n * L.Control is a base class for implementing map controls. Handles positioning.\r\n * All other controls extend from this class.\r\n */\r\n\r\nL.Control = L.Class.extend({\r\n\t// @section\r\n\t// @aka Control options\r\n\toptions: {\r\n\t\t// @option position: String = 'topright'\r\n\t\t// The position of the control (one of the map corners). Possible values are `'topleft'`,\r\n\t\t// `'topright'`, `'bottomleft'` or `'bottomright'`\r\n\t\tposition: 'topright'\r\n\t},\r\n\r\n\tinitialize: function (options) {\r\n\t\tL.setOptions(this, options);\r\n\t},\r\n\r\n\t/* @section\r\n\t * Classes extending L.Control will inherit the following methods:\r\n\t *\r\n\t * @method getPosition: string\r\n\t * Returns the position of the control.\r\n\t */\r\n\tgetPosition: function () {\r\n\t\treturn this.options.position;\r\n\t},\r\n\r\n\t// @method setPosition(position: string): this\r\n\t// Sets the position of the control.\r\n\tsetPosition: function (position) {\r\n\t\tvar map = this._map;\r\n\r\n\t\tif (map) {\r\n\t\t\tmap.removeControl(this);\r\n\t\t}\r\n\r\n\t\tthis.options.position = position;\r\n\r\n\t\tif (map) {\r\n\t\t\tmap.addControl(this);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method getContainer: HTMLElement\r\n\t// Returns the HTMLElement that contains the control.\r\n\tgetContainer: function () {\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\t// @method addTo(map: Map): this\r\n\t// Adds the control to the given map.\r\n\taddTo: function (map) {\r\n\t\tthis.remove();\r\n\t\tthis._map = map;\r\n\r\n\t\tvar container = this._container = this.onAdd(map),\r\n\t\t    pos = this.getPosition(),\r\n\t\t    corner = map._controlCorners[pos];\r\n\r\n\t\tL.DomUtil.addClass(container, 'leaflet-control');\r\n\r\n\t\tif (pos.indexOf('bottom') !== -1) {\r\n\t\t\tcorner.insertBefore(container, corner.firstChild);\r\n\t\t} else {\r\n\t\t\tcorner.appendChild(container);\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method remove: this\r\n\t// Removes the control from the map it is currently active on.\r\n\tremove: function () {\r\n\t\tif (!this._map) {\r\n\t\t\treturn this;\r\n\t\t}\r\n\r\n\t\tL.DomUtil.remove(this._container);\r\n\r\n\t\tif (this.onRemove) {\r\n\t\t\tthis.onRemove(this._map);\r\n\t\t}\r\n\r\n\t\tthis._map = null;\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_refocusOnMap: function (e) {\r\n\t\t// if map exists and event is not a keyboard event\r\n\t\tif (this._map && e && e.screenX > 0 && e.screenY > 0) {\r\n\t\t\tthis._map.getContainer().focus();\r\n\t\t}\r\n\t}\r\n});\r\n\r\nL.control = function (options) {\r\n\treturn new L.Control(options);\r\n};\r\n\r\n/* @section Extension methods\r\n * @uninheritable\r\n *\r\n * Every control should extend from `L.Control` and (re-)implement the following methods.\r\n *\r\n * @method onAdd(map: Map): HTMLElement\r\n * Should return the container DOM element for the control and add listeners on relevant map events. Called on [`control.addTo(map)`](#control-addTo).\r\n *\r\n * @method onRemove(map: Map)\r\n * Optional method. Should contain all clean up code that removes the listeners previously added in [`onAdd`](#control-onadd). Called on [`control.remove()`](#control-remove).\r\n */\r\n\r\n/* @namespace Map\r\n * @section Methods for Layers and Controls\r\n */\r\nL.Map.include({\r\n\t// @method addControl(control: Control): this\r\n\t// Adds the given control to the map\r\n\taddControl: function (control) {\r\n\t\tcontrol.addTo(this);\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method removeControl(control: Control): this\r\n\t// Removes the given control from the map\r\n\tremoveControl: function (control) {\r\n\t\tcontrol.remove();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_initControlPos: function () {\r\n\t\tvar corners = this._controlCorners = {},\r\n\t\t    l = 'leaflet-',\r\n\t\t    container = this._controlContainer =\r\n\t\t            L.DomUtil.create('div', l + 'control-container', this._container);\r\n\r\n\t\tfunction createCorner(vSide, hSide) {\r\n\t\t\tvar className = l + vSide + ' ' + l + hSide;\r\n\r\n\t\t\tcorners[vSide + hSide] = L.DomUtil.create('div', className, container);\r\n\t\t}\r\n\r\n\t\tcreateCorner('top', 'left');\r\n\t\tcreateCorner('top', 'right');\r\n\t\tcreateCorner('bottom', 'left');\r\n\t\tcreateCorner('bottom', 'right');\r\n\t},\r\n\r\n\t_clearControlPos: function () {\r\n\t\tL.DomUtil.remove(this._controlContainer);\r\n\t}\r\n});\r\n\n\n\n/*\r\n * @class Control.Zoom\r\n * @aka L.Control.Zoom\r\n * @inherits Control\r\n *\r\n * A basic zoom control with two buttons (zoom in and zoom out). It is put on the map by default unless you set its [`zoomControl` option](#map-zoomcontrol) to `false`. Extends `Control`.\r\n */\r\n\r\nL.Control.Zoom = L.Control.extend({\r\n\t// @section\r\n\t// @aka Control.Zoom options\r\n\toptions: {\r\n\t\tposition: 'topleft',\r\n\r\n\t\t// @option zoomInText: String = '+'\r\n\t\t// The text set on the 'zoom in' button.\r\n\t\tzoomInText: '+',\r\n\r\n\t\t// @option zoomInTitle: String = 'Zoom in'\r\n\t\t// The title set on the 'zoom in' button.\r\n\t\tzoomInTitle: 'Zoom in',\r\n\r\n\t\t// @option zoomOutText: String = '-'\r\n\t\t// The text set on the 'zoom out' button.\r\n\t\tzoomOutText: '-',\r\n\r\n\t\t// @option zoomOutTitle: String = 'Zoom out'\r\n\t\t// The title set on the 'zoom out' button.\r\n\t\tzoomOutTitle: 'Zoom out'\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tvar zoomName = 'leaflet-control-zoom',\r\n\t\t    container = L.DomUtil.create('div', zoomName + ' leaflet-bar'),\r\n\t\t    options = this.options;\r\n\r\n\t\tthis._zoomInButton  = this._createButton(options.zoomInText, options.zoomInTitle,\r\n\t\t        zoomName + '-in',  container, this._zoomIn);\r\n\t\tthis._zoomOutButton = this._createButton(options.zoomOutText, options.zoomOutTitle,\r\n\t\t        zoomName + '-out', container, this._zoomOut);\r\n\r\n\t\tthis._updateDisabled();\r\n\t\tmap.on('zoomend zoomlevelschange', this._updateDisabled, this);\r\n\r\n\t\treturn container;\r\n\t},\r\n\r\n\tonRemove: function (map) {\r\n\t\tmap.off('zoomend zoomlevelschange', this._updateDisabled, this);\r\n\t},\r\n\r\n\tdisable: function () {\r\n\t\tthis._disabled = true;\r\n\t\tthis._updateDisabled();\r\n\t\treturn this;\r\n\t},\r\n\r\n\tenable: function () {\r\n\t\tthis._disabled = false;\r\n\t\tthis._updateDisabled();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_zoomIn: function (e) {\r\n\t\tif (!this._disabled && this._map._zoom < this._map.getMaxZoom()) {\r\n\t\t\tthis._map.zoomIn(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));\r\n\t\t}\r\n\t},\r\n\r\n\t_zoomOut: function (e) {\r\n\t\tif (!this._disabled && this._map._zoom > this._map.getMinZoom()) {\r\n\t\t\tthis._map.zoomOut(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));\r\n\t\t}\r\n\t},\r\n\r\n\t_createButton: function (html, title, className, container, fn) {\r\n\t\tvar link = L.DomUtil.create('a', className, container);\r\n\t\tlink.innerHTML = html;\r\n\t\tlink.href = '#';\r\n\t\tlink.title = title;\r\n\r\n\t\t/*\r\n\t\t * Will force screen readers like VoiceOver to read this as \"Zoom in - button\"\r\n\t\t */\r\n\t\tlink.setAttribute('role', 'button');\r\n\t\tlink.setAttribute('aria-label', title);\r\n\r\n\t\tL.DomEvent\r\n\t\t    .on(link, 'mousedown dblclick', L.DomEvent.stopPropagation)\r\n\t\t    .on(link, 'click', L.DomEvent.stop)\r\n\t\t    .on(link, 'click', fn, this)\r\n\t\t    .on(link, 'click', this._refocusOnMap, this);\r\n\r\n\t\treturn link;\r\n\t},\r\n\r\n\t_updateDisabled: function () {\r\n\t\tvar map = this._map,\r\n\t\t    className = 'leaflet-disabled';\r\n\r\n\t\tL.DomUtil.removeClass(this._zoomInButton, className);\r\n\t\tL.DomUtil.removeClass(this._zoomOutButton, className);\r\n\r\n\t\tif (this._disabled || map._zoom === map.getMinZoom()) {\r\n\t\t\tL.DomUtil.addClass(this._zoomOutButton, className);\r\n\t\t}\r\n\t\tif (this._disabled || map._zoom === map.getMaxZoom()) {\r\n\t\t\tL.DomUtil.addClass(this._zoomInButton, className);\r\n\t\t}\r\n\t}\r\n});\r\n\r\n// @namespace Map\r\n// @section Control options\r\n// @option zoomControl: Boolean = true\r\n// Whether a [zoom control](#control-zoom) is added to the map by default.\r\nL.Map.mergeOptions({\r\n\tzoomControl: true\r\n});\r\n\r\nL.Map.addInitHook(function () {\r\n\tif (this.options.zoomControl) {\r\n\t\tthis.zoomControl = new L.Control.Zoom();\r\n\t\tthis.addControl(this.zoomControl);\r\n\t}\r\n});\r\n\r\n// @namespace Control.Zoom\r\n// @factory L.control.zoom(options: Control.Zoom options)\r\n// Creates a zoom control\r\nL.control.zoom = function (options) {\r\n\treturn new L.Control.Zoom(options);\r\n};\r\n\n\n\n/*\r\n * @class Control.Attribution\r\n * @aka L.Control.Attribution\r\n * @inherits Control\r\n *\r\n * The attribution control allows you to display attribution data in a small text box on a map. It is put on the map by default unless you set its [`attributionControl` option](#map-attributioncontrol) to `false`, and it fetches attribution texts from layers with the [`getAttribution` method](#layer-getattribution) automatically. Extends Control.\r\n */\r\n\r\nL.Control.Attribution = L.Control.extend({\r\n\t// @section\r\n\t// @aka Control.Attribution options\r\n\toptions: {\r\n\t\tposition: 'bottomright',\r\n\r\n\t\t// @option prefix: String = 'Leaflet'\r\n\t\t// The HTML text shown before the attributions. Pass `false` to disable.\r\n\t\tprefix: '<a href=\"http://leafletjs.com\" title=\"A JS library for interactive maps\">Leaflet</a>'\r\n\t},\r\n\r\n\tinitialize: function (options) {\r\n\t\tL.setOptions(this, options);\r\n\r\n\t\tthis._attributions = {};\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tmap.attributionControl = this;\r\n\t\tthis._container = L.DomUtil.create('div', 'leaflet-control-attribution');\r\n\t\tif (L.DomEvent) {\r\n\t\t\tL.DomEvent.disableClickPropagation(this._container);\r\n\t\t}\r\n\r\n\t\t// TODO ugly, refactor\r\n\t\tfor (var i in map._layers) {\r\n\t\t\tif (map._layers[i].getAttribution) {\r\n\t\t\t\tthis.addAttribution(map._layers[i].getAttribution());\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tthis._update();\r\n\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\t// @method setPrefix(prefix: String): this\r\n\t// Sets the text before the attributions.\r\n\tsetPrefix: function (prefix) {\r\n\t\tthis.options.prefix = prefix;\r\n\t\tthis._update();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method addAttribution(text: String): this\r\n\t// Adds an attribution text (e.g. `'Vector data &copy; Mapbox'`).\r\n\taddAttribution: function (text) {\r\n\t\tif (!text) { return this; }\r\n\r\n\t\tif (!this._attributions[text]) {\r\n\t\t\tthis._attributions[text] = 0;\r\n\t\t}\r\n\t\tthis._attributions[text]++;\r\n\r\n\t\tthis._update();\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method removeAttribution(text: String): this\r\n\t// Removes an attribution text.\r\n\tremoveAttribution: function (text) {\r\n\t\tif (!text) { return this; }\r\n\r\n\t\tif (this._attributions[text]) {\r\n\t\t\tthis._attributions[text]--;\r\n\t\t\tthis._update();\r\n\t\t}\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_update: function () {\r\n\t\tif (!this._map) { return; }\r\n\r\n\t\tvar attribs = [];\r\n\r\n\t\tfor (var i in this._attributions) {\r\n\t\t\tif (this._attributions[i]) {\r\n\t\t\t\tattribs.push(i);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tvar prefixAndAttribs = [];\r\n\r\n\t\tif (this.options.prefix) {\r\n\t\t\tprefixAndAttribs.push(this.options.prefix);\r\n\t\t}\r\n\t\tif (attribs.length) {\r\n\t\t\tprefixAndAttribs.push(attribs.join(', '));\r\n\t\t}\r\n\r\n\t\tthis._container.innerHTML = prefixAndAttribs.join(' | ');\r\n\t}\r\n});\r\n\r\n// @namespace Map\r\n// @section Control options\r\n// @option attributionControl: Boolean = true\r\n// Whether a [attribution control](#control-attribution) is added to the map by default.\r\nL.Map.mergeOptions({\r\n\tattributionControl: true\r\n});\r\n\r\nL.Map.addInitHook(function () {\r\n\tif (this.options.attributionControl) {\r\n\t\tnew L.Control.Attribution().addTo(this);\r\n\t}\r\n});\r\n\r\n// @namespace Control.Attribution\r\n// @factory L.control.attribution(options: Control.Attribution options)\r\n// Creates an attribution control.\r\nL.control.attribution = function (options) {\r\n\treturn new L.Control.Attribution(options);\r\n};\r\n\n\n\n/*\n * @class Control.Scale\n * @aka L.Control.Scale\n * @inherits Control\n *\n * A simple scale control that shows the scale of the current center of screen in metric (m/km) and imperial (mi/ft) systems. Extends `Control`.\n *\n * @example\n *\n * ```js\n * L.control.scale().addTo(map);\n * ```\n */\n\nL.Control.Scale = L.Control.extend({\n\t// @section\n\t// @aka Control.Scale options\n\toptions: {\n\t\tposition: 'bottomleft',\n\n\t\t// @option maxWidth: Number = 100\n\t\t// Maximum width of the control in pixels. The width is set dynamically to show round values (e.g. 100, 200, 500).\n\t\tmaxWidth: 100,\n\n\t\t// @option metric: Boolean = True\n\t\t// Whether to show the metric scale line (m/km).\n\t\tmetric: true,\n\n\t\t// @option imperial: Boolean = True\n\t\t// Whether to show the imperial scale line (mi/ft).\n\t\timperial: true\n\n\t\t// @option updateWhenIdle: Boolean = false\n\t\t// If `true`, the control is updated on [`moveend`](#map-moveend), otherwise it's always up-to-date (updated on [`move`](#map-move)).\n\t},\n\n\tonAdd: function (map) {\n\t\tvar className = 'leaflet-control-scale',\n\t\t    container = L.DomUtil.create('div', className),\n\t\t    options = this.options;\n\n\t\tthis._addScales(options, className + '-line', container);\n\n\t\tmap.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);\n\t\tmap.whenReady(this._update, this);\n\n\t\treturn container;\n\t},\n\n\tonRemove: function (map) {\n\t\tmap.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);\n\t},\n\n\t_addScales: function (options, className, container) {\n\t\tif (options.metric) {\n\t\t\tthis._mScale = L.DomUtil.create('div', className, container);\n\t\t}\n\t\tif (options.imperial) {\n\t\t\tthis._iScale = L.DomUtil.create('div', className, container);\n\t\t}\n\t},\n\n\t_update: function () {\n\t\tvar map = this._map,\n\t\t    y = map.getSize().y / 2;\n\n\t\tvar maxMeters = map.distance(\n\t\t\t\tmap.containerPointToLatLng([0, y]),\n\t\t\t\tmap.containerPointToLatLng([this.options.maxWidth, y]));\n\n\t\tthis._updateScales(maxMeters);\n\t},\n\n\t_updateScales: function (maxMeters) {\n\t\tif (this.options.metric && maxMeters) {\n\t\t\tthis._updateMetric(maxMeters);\n\t\t}\n\t\tif (this.options.imperial && maxMeters) {\n\t\t\tthis._updateImperial(maxMeters);\n\t\t}\n\t},\n\n\t_updateMetric: function (maxMeters) {\n\t\tvar meters = this._getRoundNum(maxMeters),\n\t\t    label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';\n\n\t\tthis._updateScale(this._mScale, label, meters / maxMeters);\n\t},\n\n\t_updateImperial: function (maxMeters) {\n\t\tvar maxFeet = maxMeters * 3.2808399,\n\t\t    maxMiles, miles, feet;\n\n\t\tif (maxFeet > 5280) {\n\t\t\tmaxMiles = maxFeet / 5280;\n\t\t\tmiles = this._getRoundNum(maxMiles);\n\t\t\tthis._updateScale(this._iScale, miles + ' mi', miles / maxMiles);\n\n\t\t} else {\n\t\t\tfeet = this._getRoundNum(maxFeet);\n\t\t\tthis._updateScale(this._iScale, feet + ' ft', feet / maxFeet);\n\t\t}\n\t},\n\n\t_updateScale: function (scale, text, ratio) {\n\t\tscale.style.width = Math.round(this.options.maxWidth * ratio) + 'px';\n\t\tscale.innerHTML = text;\n\t},\n\n\t_getRoundNum: function (num) {\n\t\tvar pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),\n\t\t    d = num / pow10;\n\n\t\td = d >= 10 ? 10 :\n\t\t    d >= 5 ? 5 :\n\t\t    d >= 3 ? 3 :\n\t\t    d >= 2 ? 2 : 1;\n\n\t\treturn pow10 * d;\n\t}\n});\n\n\n// @factory L.control.scale(options?: Control.Scale options)\n// Creates an scale control with the given options.\nL.control.scale = function (options) {\n\treturn new L.Control.Scale(options);\n};\n\n\n\n/*\r\n * @class Control.Layers\r\n * @aka L.Control.Layers\r\n * @inherits Control\r\n *\r\n * The layers control gives users the ability to switch between different base layers and switch overlays on/off (check out the [detailed example](http://leafletjs.com/examples/layers-control.html)). Extends `Control`.\r\n *\r\n * @example\r\n *\r\n * ```js\r\n * var baseLayers = {\r\n * \t\"Mapbox\": mapbox,\r\n * \t\"OpenStreetMap\": osm\r\n * };\r\n *\r\n * var overlays = {\r\n * \t\"Marker\": marker,\r\n * \t\"Roads\": roadsLayer\r\n * };\r\n *\r\n * L.control.layers(baseLayers, overlays).addTo(map);\r\n * ```\r\n *\r\n * The `baseLayers` and `overlays` parameters are object literals with layer names as keys and `Layer` objects as values:\r\n *\r\n * ```js\r\n * {\r\n *     \"<someName1>\": layer1,\r\n *     \"<someName2>\": layer2\r\n * }\r\n * ```\r\n *\r\n * The layer names can contain HTML, which allows you to add additional styling to the items:\r\n *\r\n * ```js\r\n * {\"<img src='my-layer-icon' /> <span class='my-layer-item'>My Layer</span>\": myLayer}\r\n * ```\r\n */\r\n\r\n\r\nL.Control.Layers = L.Control.extend({\r\n\t// @section\r\n\t// @aka Control.Layers options\r\n\toptions: {\r\n\t\t// @option collapsed: Boolean = true\r\n\t\t// If `true`, the control will be collapsed into an icon and expanded on mouse hover or touch.\r\n\t\tcollapsed: true,\r\n\t\tposition: 'topright',\r\n\r\n\t\t// @option autoZIndex: Boolean = true\r\n\t\t// If `true`, the control will assign zIndexes in increasing order to all of its layers so that the order is preserved when switching them on/off.\r\n\t\tautoZIndex: true,\r\n\r\n\t\t// @option hideSingleBase: Boolean = false\r\n\t\t// If `true`, the base layers in the control will be hidden when there is only one.\r\n\t\thideSingleBase: false,\r\n\r\n\t\t// @option sortLayers: Boolean = false\r\n\t\t// Whether to sort the layers. When `false`, layers will keep the order\r\n\t\t// in which they were added to the control.\r\n\t\tsortLayers: false,\r\n\r\n\t\t// @option sortFunction: Function = *\r\n\t\t// A [compare function](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/sort)\r\n\t\t// that will be used for sorting the layers, when `sortLayers` is `true`.\r\n\t\t// The function receives both the `L.Layer` instances and their names, as in\r\n\t\t// `sortFunction(layerA, layerB, nameA, nameB)`.\r\n\t\t// By default, it sorts layers alphabetically by their name.\r\n\t\tsortFunction: function (layerA, layerB, nameA, nameB) {\r\n\t\t\treturn nameA < nameB ? -1 : (nameB < nameA ? 1 : 0);\r\n\t\t}\r\n\t},\r\n\r\n\tinitialize: function (baseLayers, overlays, options) {\r\n\t\tL.setOptions(this, options);\r\n\r\n\t\tthis._layers = [];\r\n\t\tthis._lastZIndex = 0;\r\n\t\tthis._handlingClick = false;\r\n\r\n\t\tfor (var i in baseLayers) {\r\n\t\t\tthis._addLayer(baseLayers[i], i);\r\n\t\t}\r\n\r\n\t\tfor (i in overlays) {\r\n\t\t\tthis._addLayer(overlays[i], i, true);\r\n\t\t}\r\n\t},\r\n\r\n\tonAdd: function (map) {\r\n\t\tthis._initLayout();\r\n\t\tthis._update();\r\n\r\n\t\tthis._map = map;\r\n\t\tmap.on('zoomend', this._checkDisabledLayers, this);\r\n\r\n\t\treturn this._container;\r\n\t},\r\n\r\n\tonRemove: function () {\r\n\t\tthis._map.off('zoomend', this._checkDisabledLayers, this);\r\n\r\n\t\tfor (var i = 0; i < this._layers.length; i++) {\r\n\t\t\tthis._layers[i].layer.off('add remove', this._onLayerChange, this);\r\n\t\t}\r\n\t},\r\n\r\n\t// @method addBaseLayer(layer: Layer, name: String): this\r\n\t// Adds a base layer (radio button entry) with the given name to the control.\r\n\taddBaseLayer: function (layer, name) {\r\n\t\tthis._addLayer(layer, name);\r\n\t\treturn (this._map) ? this._update() : this;\r\n\t},\r\n\r\n\t// @method addOverlay(layer: Layer, name: String): this\r\n\t// Adds an overlay (checkbox entry) with the given name to the control.\r\n\taddOverlay: function (layer, name) {\r\n\t\tthis._addLayer(layer, name, true);\r\n\t\treturn (this._map) ? this._update() : this;\r\n\t},\r\n\r\n\t// @method removeLayer(layer: Layer): this\r\n\t// Remove the given layer from the control.\r\n\tremoveLayer: function (layer) {\r\n\t\tlayer.off('add remove', this._onLayerChange, this);\r\n\r\n\t\tvar obj = this._getLayer(L.stamp(layer));\r\n\t\tif (obj) {\r\n\t\t\tthis._layers.splice(this._layers.indexOf(obj), 1);\r\n\t\t}\r\n\t\treturn (this._map) ? this._update() : this;\r\n\t},\r\n\r\n\t// @method expand(): this\r\n\t// Expand the control container if collapsed.\r\n\texpand: function () {\r\n\t\tL.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');\r\n\t\tthis._form.style.height = null;\r\n\t\tvar acceptableHeight = this._map.getSize().y - (this._container.offsetTop + 50);\r\n\t\tif (acceptableHeight < this._form.clientHeight) {\r\n\t\t\tL.DomUtil.addClass(this._form, 'leaflet-control-layers-scrollbar');\r\n\t\t\tthis._form.style.height = acceptableHeight + 'px';\r\n\t\t} else {\r\n\t\t\tL.DomUtil.removeClass(this._form, 'leaflet-control-layers-scrollbar');\r\n\t\t}\r\n\t\tthis._checkDisabledLayers();\r\n\t\treturn this;\r\n\t},\r\n\r\n\t// @method collapse(): this\r\n\t// Collapse the control container if expanded.\r\n\tcollapse: function () {\r\n\t\tL.DomUtil.removeClass(this._container, 'leaflet-control-layers-expanded');\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_initLayout: function () {\r\n\t\tvar className = 'leaflet-control-layers',\r\n\t\t    container = this._container = L.DomUtil.create('div', className);\r\n\r\n\t\t// makes this work on IE touch devices by stopping it from firing a mouseout event when the touch is released\r\n\t\tcontainer.setAttribute('aria-haspopup', true);\r\n\r\n\t\tL.DomEvent.disableClickPropagation(container);\r\n\t\tif (!L.Browser.touch) {\r\n\t\t\tL.DomEvent.disableScrollPropagation(container);\r\n\t\t}\r\n\r\n\t\tvar form = this._form = L.DomUtil.create('form', className + '-list');\r\n\r\n\t\tif (!L.Browser.android) {\r\n\t\t\tL.DomEvent.on(container, {\r\n\t\t\t\tmouseenter: this.expand,\r\n\t\t\t\tmouseleave: this.collapse\r\n\t\t\t}, this);\r\n\t\t}\r\n\r\n\t\tvar link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);\r\n\t\tlink.href = '#';\r\n\t\tlink.title = 'Layers';\r\n\r\n\t\tif (L.Browser.touch) {\r\n\t\t\tL.DomEvent\r\n\t\t\t    .on(link, 'click', L.DomEvent.stop)\r\n\t\t\t    .on(link, 'click', this.expand, this);\r\n\t\t} else {\r\n\t\t\tL.DomEvent.on(link, 'focus', this.expand, this);\r\n\t\t}\r\n\r\n\t\t// work around for Firefox Android issue https://github.com/Leaflet/Leaflet/issues/2033\r\n\t\tL.DomEvent.on(form, 'click', function () {\r\n\t\t\tsetTimeout(L.bind(this._onInputClick, this), 0);\r\n\t\t}, this);\r\n\r\n\t\tthis._map.on('click', this.collapse, this);\r\n\t\t// TODO keyboard accessibility\r\n\r\n\t\tif (!this.options.collapsed) {\r\n\t\t\tthis.expand();\r\n\t\t}\r\n\r\n\t\tthis._baseLayersList = L.DomUtil.create('div', className + '-base', form);\r\n\t\tthis._separator = L.DomUtil.create('div', className + '-separator', form);\r\n\t\tthis._overlaysList = L.DomUtil.create('div', className + '-overlays', form);\r\n\r\n\t\tcontainer.appendChild(form);\r\n\t},\r\n\r\n\t_getLayer: function (id) {\r\n\t\tfor (var i = 0; i < this._layers.length; i++) {\r\n\r\n\t\t\tif (this._layers[i] && L.stamp(this._layers[i].layer) === id) {\r\n\t\t\t\treturn this._layers[i];\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t_addLayer: function (layer, name, overlay) {\r\n\t\tlayer.on('add remove', this._onLayerChange, this);\r\n\r\n\t\tthis._layers.push({\r\n\t\t\tlayer: layer,\r\n\t\t\tname: name,\r\n\t\t\toverlay: overlay\r\n\t\t});\r\n\r\n\t\tif (this.options.sortLayers) {\r\n\t\t\tthis._layers.sort(L.bind(function (a, b) {\r\n\t\t\t\treturn this.options.sortFunction(a.layer, b.layer, a.name, b.name);\r\n\t\t\t}, this));\r\n\t\t}\r\n\r\n\t\tif (this.options.autoZIndex && layer.setZIndex) {\r\n\t\t\tthis._lastZIndex++;\r\n\t\t\tlayer.setZIndex(this._lastZIndex);\r\n\t\t}\r\n\t},\r\n\r\n\t_update: function () {\r\n\t\tif (!this._container) { return this; }\r\n\r\n\t\tL.DomUtil.empty(this._baseLayersList);\r\n\t\tL.DomUtil.empty(this._overlaysList);\r\n\r\n\t\tvar baseLayersPresent, overlaysPresent, i, obj, baseLayersCount = 0;\r\n\r\n\t\tfor (i = 0; i < this._layers.length; i++) {\r\n\t\t\tobj = this._layers[i];\r\n\t\t\tthis._addItem(obj);\r\n\t\t\toverlaysPresent = overlaysPresent || obj.overlay;\r\n\t\t\tbaseLayersPresent = baseLayersPresent || !obj.overlay;\r\n\t\t\tbaseLayersCount += !obj.overlay ? 1 : 0;\r\n\t\t}\r\n\r\n\t\t// Hide base layers section if there's only one layer.\r\n\t\tif (this.options.hideSingleBase) {\r\n\t\t\tbaseLayersPresent = baseLayersPresent && baseLayersCount > 1;\r\n\t\t\tthis._baseLayersList.style.display = baseLayersPresent ? '' : 'none';\r\n\t\t}\r\n\r\n\t\tthis._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';\r\n\r\n\t\treturn this;\r\n\t},\r\n\r\n\t_onLayerChange: function (e) {\r\n\t\tif (!this._handlingClick) {\r\n\t\t\tthis._update();\r\n\t\t}\r\n\r\n\t\tvar obj = this._getLayer(L.stamp(e.target));\r\n\r\n\t\t// @namespace Map\r\n\t\t// @section Layer events\r\n\t\t// @event baselayerchange: LayersControlEvent\r\n\t\t// Fired when the base layer is changed through the [layer control](#control-layers).\r\n\t\t// @event overlayadd: LayersControlEvent\r\n\t\t// Fired when an overlay is selected through the [layer control](#control-layers).\r\n\t\t// @event overlayremove: LayersControlEvent\r\n\t\t// Fired when an overlay is deselected through the [layer control](#control-layers).\r\n\t\t// @namespace Control.Layers\r\n\t\tvar type = obj.overlay ?\r\n\t\t\t(e.type === 'add' ? 'overlayadd' : 'overlayremove') :\r\n\t\t\t(e.type === 'add' ? 'baselayerchange' : null);\r\n\r\n\t\tif (type) {\r\n\t\t\tthis._map.fire(type, obj);\r\n\t\t}\r\n\t},\r\n\r\n\t// IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)\r\n\t_createRadioElement: function (name, checked) {\r\n\r\n\t\tvar radioHtml = '<input type=\"radio\" class=\"leaflet-control-layers-selector\" name=\"' +\r\n\t\t\t\tname + '\"' + (checked ? ' checked=\"checked\"' : '') + '/>';\r\n\r\n\t\tvar radioFragment = document.createElement('div');\r\n\t\tradioFragment.innerHTML = radioHtml;\r\n\r\n\t\treturn radioFragment.firstChild;\r\n\t},\r\n\r\n\t_addItem: function (obj) {\r\n\t\tvar label = document.createElement('label'),\r\n\t\t    checked = this._map.hasLayer(obj.layer),\r\n\t\t    input;\r\n\r\n\t\tif (obj.overlay) {\r\n\t\t\tinput = document.createElement('input');\r\n\t\t\tinput.type = 'checkbox';\r\n\t\t\tinput.className = 'leaflet-control-layers-selector';\r\n\t\t\tinput.defaultChecked = checked;\r\n\t\t} else {\r\n\t\t\tinput = this._createRadioElement('leaflet-base-layers', checked);\r\n\t\t}\r\n\r\n\t\tinput.layerId = L.stamp(obj.layer);\r\n\r\n\t\tL.DomEvent.on(input, 'click', this._onInputClick, this);\r\n\r\n\t\tvar name = document.createElement('span');\r\n\t\tname.innerHTML = ' ' + obj.name;\r\n\r\n\t\t// Helps from preventing layer control flicker when checkboxes are disabled\r\n\t\t// https://github.com/Leaflet/Leaflet/issues/2771\r\n\t\tvar holder = document.createElement('div');\r\n\r\n\t\tlabel.appendChild(holder);\r\n\t\tholder.appendChild(input);\r\n\t\tholder.appendChild(name);\r\n\r\n\t\tvar container = obj.overlay ? this._overlaysList : this._baseLayersList;\r\n\t\tcontainer.appendChild(label);\r\n\r\n\t\tthis._checkDisabledLayers();\r\n\t\treturn label;\r\n\t},\r\n\r\n\t_onInputClick: function () {\r\n\t\tvar inputs = this._form.getElementsByTagName('input'),\r\n\t\t    input, layer, hasLayer;\r\n\t\tvar addedLayers = [],\r\n\t\t    removedLayers = [];\r\n\r\n\t\tthis._handlingClick = true;\r\n\r\n\t\tfor (var i = inputs.length - 1; i >= 0; i--) {\r\n\t\t\tinput = inputs[i];\r\n\t\t\tlayer = this._getLayer(input.layerId).layer;\r\n\t\t\thasLayer = this._map.hasLayer(layer);\r\n\r\n\t\t\tif (input.checked && !hasLayer) {\r\n\t\t\t\taddedLayers.push(layer);\r\n\r\n\t\t\t} else if (!input.checked && hasLayer) {\r\n\t\t\t\tremovedLayers.push(layer);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// Bugfix issue 2318: Should remove all old layers before readding new ones\r\n\t\tfor (i = 0; i < removedLayers.length; i++) {\r\n\t\t\tthis._map.removeLayer(removedLayers[i]);\r\n\t\t}\r\n\t\tfor (i = 0; i < addedLayers.length; i++) {\r\n\t\t\tthis._map.addLayer(addedLayers[i]);\r\n\t\t}\r\n\r\n\t\tthis._handlingClick = false;\r\n\r\n\t\tthis._refocusOnMap();\r\n\t},\r\n\r\n\t_checkDisabledLayers: function () {\r\n\t\tvar inputs = this._form.getElementsByTagName('input'),\r\n\t\t    input,\r\n\t\t    layer,\r\n\t\t    zoom = this._map.getZoom();\r\n\r\n\t\tfor (var i = inputs.length - 1; i >= 0; i--) {\r\n\t\t\tinput = inputs[i];\r\n\t\t\tlayer = this._getLayer(input.layerId).layer;\r\n\t\t\tinput.disabled = (layer.options.minZoom !== undefined && zoom < layer.options.minZoom) ||\r\n\t\t\t                 (layer.options.maxZoom !== undefined && zoom > layer.options.maxZoom);\r\n\r\n\t\t}\r\n\t},\r\n\r\n\t_expand: function () {\r\n\t\t// Backward compatibility, remove me in 1.1.\r\n\t\treturn this.expand();\r\n\t},\r\n\r\n\t_collapse: function () {\r\n\t\t// Backward compatibility, remove me in 1.1.\r\n\t\treturn this.collapse();\r\n\t}\r\n\r\n});\r\n\r\n\r\n// @factory L.control.layers(baselayers?: Object, overlays?: Object, options?: Control.Layers options)\r\n// Creates an attribution control with the given layers. Base layers will be switched with radio buttons, while overlays will be switched with checkboxes. Note that all base layers should be passed in the base layers object, but only one should be added to the map during map instantiation.\r\nL.control.layers = function (baseLayers, overlays, options) {\r\n\treturn new L.Control.Layers(baseLayers, overlays, options);\r\n};\r\n\n\n\n}(window, document));\n//# sourceMappingURL=leaflet-src.map","/*!\n * mustache.js - Logic-less {{mustache}} templates with JavaScript\n * http://github.com/janl/mustache.js\n */\n\n/*global define: false Mustache: true*/\n\n(function defineMustache (global, factory) {\n  if (typeof exports === 'object' && exports && typeof exports.nodeName !== 'string') {\n    factory(exports); // CommonJS\n  } else if (typeof define === 'function' && define.amd) {\n    define(['exports'], factory); // AMD\n  } else {\n    global.Mustache = {};\n    factory(global.Mustache); // script, wsh, asp\n  }\n}(this, function mustacheFactory (mustache) {\n\n  var objectToString = Object.prototype.toString;\n  var isArray = Array.isArray || function isArrayPolyfill (object) {\n    return objectToString.call(object) === '[object Array]';\n  };\n\n  function isFunction (object) {\n    return typeof object === 'function';\n  }\n\n  /**\n   * More correct typeof string handling array\n   * which normally returns typeof 'object'\n   */\n  function typeStr (obj) {\n    return isArray(obj) ? 'array' : typeof obj;\n  }\n\n  function escapeRegExp (string) {\n    return string.replace(/[\\-\\[\\]{}()*+?.,\\\\\\^$|#\\s]/g, '\\\\$&');\n  }\n\n  /**\n   * Null safe way of checking whether or not an object,\n   * including its prototype, has a given property\n   */\n  function hasProperty (obj, propName) {\n    return obj != null && typeof obj === 'object' && (propName in obj);\n  }\n\n  // Workaround for https://issues.apache.org/jira/browse/COUCHDB-577\n  // See https://github.com/janl/mustache.js/issues/189\n  var regExpTest = RegExp.prototype.test;\n  function testRegExp (re, string) {\n    return regExpTest.call(re, string);\n  }\n\n  var nonSpaceRe = /\\S/;\n  function isWhitespace (string) {\n    return !testRegExp(nonSpaceRe, string);\n  }\n\n  var entityMap = {\n    '&': '&amp;',\n    '<': '&lt;',\n    '>': '&gt;',\n    '\"': '&quot;',\n    \"'\": '&#39;',\n    '/': '&#x2F;',\n    '`': '&#x60;',\n    '=': '&#x3D;'\n  };\n\n  function escapeHtml (string) {\n    return String(string).replace(/[&<>\"'`=\\/]/g, function fromEntityMap (s) {\n      return entityMap[s];\n    });\n  }\n\n  var whiteRe = /\\s*/;\n  var spaceRe = /\\s+/;\n  var equalsRe = /\\s*=/;\n  var curlyRe = /\\s*\\}/;\n  var tagRe = /#|\\^|\\/|>|\\{|&|=|!/;\n\n  /**\n   * Breaks up the given `template` string into a tree of tokens. If the `tags`\n   * argument is given here it must be an array with two string values: the\n   * opening and closing tags used in the template (e.g. [ \"<%\", \"%>\" ]). Of\n   * course, the default is to use mustaches (i.e. mustache.tags).\n   *\n   * A token is an array with at least 4 elements. The first element is the\n   * mustache symbol that was used inside the tag, e.g. \"#\" or \"&\". If the tag\n   * did not contain a symbol (i.e. {{myValue}}) this element is \"name\". For\n   * all text that appears outside a symbol this element is \"text\".\n   *\n   * The second element of a token is its \"value\". For mustache tags this is\n   * whatever else was inside the tag besides the opening symbol. For text tokens\n   * this is the text itself.\n   *\n   * The third and fourth elements of the token are the start and end indices,\n   * respectively, of the token in the original template.\n   *\n   * Tokens that are the root node of a subtree contain two more elements: 1) an\n   * array of tokens in the subtree and 2) the index in the original template at\n   * which the closing tag for that section begins.\n   */\n  function parseTemplate (template, tags) {\n    if (!template)\n      return [];\n\n    var sections = [];     // Stack to hold section tokens\n    var tokens = [];       // Buffer to hold the tokens\n    var spaces = [];       // Indices of whitespace tokens on the current line\n    var hasTag = false;    // Is there a {{tag}} on the current line?\n    var nonSpace = false;  // Is there a non-space char on the current line?\n\n    // Strips all whitespace tokens array for the current line\n    // if there was a {{#tag}} on it and otherwise only space.\n    function stripSpace () {\n      if (hasTag && !nonSpace) {\n        while (spaces.length)\n          delete tokens[spaces.pop()];\n      } else {\n        spaces = [];\n      }\n\n      hasTag = false;\n      nonSpace = false;\n    }\n\n    var openingTagRe, closingTagRe, closingCurlyRe;\n    function compileTags (tagsToCompile) {\n      if (typeof tagsToCompile === 'string')\n        tagsToCompile = tagsToCompile.split(spaceRe, 2);\n\n      if (!isArray(tagsToCompile) || tagsToCompile.length !== 2)\n        throw new Error('Invalid tags: ' + tagsToCompile);\n\n      openingTagRe = new RegExp(escapeRegExp(tagsToCompile[0]) + '\\\\s*');\n      closingTagRe = new RegExp('\\\\s*' + escapeRegExp(tagsToCompile[1]));\n      closingCurlyRe = new RegExp('\\\\s*' + escapeRegExp('}' + tagsToCompile[1]));\n    }\n\n    compileTags(tags || mustache.tags);\n\n    var scanner = new Scanner(template);\n\n    var start, type, value, chr, token, openSection;\n    while (!scanner.eos()) {\n      start = scanner.pos;\n\n      // Match any text between tags.\n      value = scanner.scanUntil(openingTagRe);\n\n      if (value) {\n        for (var i = 0, valueLength = value.length; i < valueLength; ++i) {\n          chr = value.charAt(i);\n\n          if (isWhitespace(chr)) {\n            spaces.push(tokens.length);\n          } else {\n            nonSpace = true;\n          }\n\n          tokens.push([ 'text', chr, start, start + 1 ]);\n          start += 1;\n\n          // Check for whitespace on the current line.\n          if (chr === '\\n')\n            stripSpace();\n        }\n      }\n\n      // Match the opening tag.\n      if (!scanner.scan(openingTagRe))\n        break;\n\n      hasTag = true;\n\n      // Get the tag type.\n      type = scanner.scan(tagRe) || 'name';\n      scanner.scan(whiteRe);\n\n      // Get the tag value.\n      if (type === '=') {\n        value = scanner.scanUntil(equalsRe);\n        scanner.scan(equalsRe);\n        scanner.scanUntil(closingTagRe);\n      } else if (type === '{') {\n        value = scanner.scanUntil(closingCurlyRe);\n        scanner.scan(curlyRe);\n        scanner.scanUntil(closingTagRe);\n        type = '&';\n      } else {\n        value = scanner.scanUntil(closingTagRe);\n      }\n\n      // Match the closing tag.\n      if (!scanner.scan(closingTagRe))\n        throw new Error('Unclosed tag at ' + scanner.pos);\n\n      token = [ type, value, start, scanner.pos ];\n      tokens.push(token);\n\n      if (type === '#' || type === '^') {\n        sections.push(token);\n      } else if (type === '/') {\n        // Check section nesting.\n        openSection = sections.pop();\n\n        if (!openSection)\n          throw new Error('Unopened section \"' + value + '\" at ' + start);\n\n        if (openSection[1] !== value)\n          throw new Error('Unclosed section \"' + openSection[1] + '\" at ' + start);\n      } else if (type === 'name' || type === '{' || type === '&') {\n        nonSpace = true;\n      } else if (type === '=') {\n        // Set the tags for the next time around.\n        compileTags(value);\n      }\n    }\n\n    // Make sure there are no open sections when we're done.\n    openSection = sections.pop();\n\n    if (openSection)\n      throw new Error('Unclosed section \"' + openSection[1] + '\" at ' + scanner.pos);\n\n    return nestTokens(squashTokens(tokens));\n  }\n\n  /**\n   * Combines the values of consecutive text tokens in the given `tokens` array\n   * to a single token.\n   */\n  function squashTokens (tokens) {\n    var squashedTokens = [];\n\n    var token, lastToken;\n    for (var i = 0, numTokens = tokens.length; i < numTokens; ++i) {\n      token = tokens[i];\n\n      if (token) {\n        if (token[0] === 'text' && lastToken && lastToken[0] === 'text') {\n          lastToken[1] += token[1];\n          lastToken[3] = token[3];\n        } else {\n          squashedTokens.push(token);\n          lastToken = token;\n        }\n      }\n    }\n\n    return squashedTokens;\n  }\n\n  /**\n   * Forms the given array of `tokens` into a nested tree structure where\n   * tokens that represent a section have two additional items: 1) an array of\n   * all tokens that appear in that section and 2) the index in the original\n   * template that represents the end of that section.\n   */\n  function nestTokens (tokens) {\n    var nestedTokens = [];\n    var collector = nestedTokens;\n    var sections = [];\n\n    var token, section;\n    for (var i = 0, numTokens = tokens.length; i < numTokens; ++i) {\n      token = tokens[i];\n\n      switch (token[0]) {\n        case '#':\n        case '^':\n          collector.push(token);\n          sections.push(token);\n          collector = token[4] = [];\n          break;\n        case '/':\n          section = sections.pop();\n          section[5] = token[2];\n          collector = sections.length > 0 ? sections[sections.length - 1][4] : nestedTokens;\n          break;\n        default:\n          collector.push(token);\n      }\n    }\n\n    return nestedTokens;\n  }\n\n  /**\n   * A simple string scanner that is used by the template parser to find\n   * tokens in template strings.\n   */\n  function Scanner (string) {\n    this.string = string;\n    this.tail = string;\n    this.pos = 0;\n  }\n\n  /**\n   * Returns `true` if the tail is empty (end of string).\n   */\n  Scanner.prototype.eos = function eos () {\n    return this.tail === '';\n  };\n\n  /**\n   * Tries to match the given regular expression at the current position.\n   * Returns the matched text if it can match, the empty string otherwise.\n   */\n  Scanner.prototype.scan = function scan (re) {\n    var match = this.tail.match(re);\n\n    if (!match || match.index !== 0)\n      return '';\n\n    var string = match[0];\n\n    this.tail = this.tail.substring(string.length);\n    this.pos += string.length;\n\n    return string;\n  };\n\n  /**\n   * Skips all text until the given regular expression can be matched. Returns\n   * the skipped string, which is the entire tail if no match can be made.\n   */\n  Scanner.prototype.scanUntil = function scanUntil (re) {\n    var index = this.tail.search(re), match;\n\n    switch (index) {\n      case -1:\n        match = this.tail;\n        this.tail = '';\n        break;\n      case 0:\n        match = '';\n        break;\n      default:\n        match = this.tail.substring(0, index);\n        this.tail = this.tail.substring(index);\n    }\n\n    this.pos += match.length;\n\n    return match;\n  };\n\n  /**\n   * Represents a rendering context by wrapping a view object and\n   * maintaining a reference to the parent context.\n   */\n  function Context (view, parentContext) {\n    this.view = view;\n    this.cache = { '.': this.view };\n    this.parent = parentContext;\n  }\n\n  /**\n   * Creates a new context using the given view with this context\n   * as the parent.\n   */\n  Context.prototype.push = function push (view) {\n    return new Context(view, this);\n  };\n\n  /**\n   * Returns the value of the given name in this context, traversing\n   * up the context hierarchy if the value is absent in this context's view.\n   */\n  Context.prototype.lookup = function lookup (name) {\n    var cache = this.cache;\n\n    var value;\n    if (cache.hasOwnProperty(name)) {\n      value = cache[name];\n    } else {\n      var context = this, names, index, lookupHit = false;\n\n      while (context) {\n        if (name.indexOf('.') > 0) {\n          value = context.view;\n          names = name.split('.');\n          index = 0;\n\n          /**\n           * Using the dot notion path in `name`, we descend through the\n           * nested objects.\n           *\n           * To be certain that the lookup has been successful, we have to\n           * check if the last object in the path actually has the property\n           * we are looking for. We store the result in `lookupHit`.\n           *\n           * This is specially necessary for when the value has been set to\n           * `undefined` and we want to avoid looking up parent contexts.\n           **/\n          while (value != null && index < names.length) {\n            if (index === names.length - 1)\n              lookupHit = hasProperty(value, names[index]);\n\n            value = value[names[index++]];\n          }\n        } else {\n          value = context.view[name];\n          lookupHit = hasProperty(context.view, name);\n        }\n\n        if (lookupHit)\n          break;\n\n        context = context.parent;\n      }\n\n      cache[name] = value;\n    }\n\n    if (isFunction(value))\n      value = value.call(this.view);\n\n    return value;\n  };\n\n  /**\n   * A Writer knows how to take a stream of tokens and render them to a\n   * string, given a context. It also maintains a cache of templates to\n   * avoid the need to parse the same template twice.\n   */\n  function Writer () {\n    this.cache = {};\n  }\n\n  /**\n   * Clears all cached templates in this writer.\n   */\n  Writer.prototype.clearCache = function clearCache () {\n    this.cache = {};\n  };\n\n  /**\n   * Parses and caches the given `template` and returns the array of tokens\n   * that is generated from the parse.\n   */\n  Writer.prototype.parse = function parse (template, tags) {\n    var cache = this.cache;\n    var tokens = cache[template];\n\n    if (tokens == null)\n      tokens = cache[template] = parseTemplate(template, tags);\n\n    return tokens;\n  };\n\n  /**\n   * High-level method that is used to render the given `template` with\n   * the given `view`.\n   *\n   * The optional `partials` argument may be an object that contains the\n   * names and templates of partials that are used in the template. It may\n   * also be a function that is used to load partial templates on the fly\n   * that takes a single argument: the name of the partial.\n   */\n  Writer.prototype.render = function render (template, view, partials) {\n    var tokens = this.parse(template);\n    var context = (view instanceof Context) ? view : new Context(view);\n    return this.renderTokens(tokens, context, partials, template);\n  };\n\n  /**\n   * Low-level method that renders the given array of `tokens` using\n   * the given `context` and `partials`.\n   *\n   * Note: The `originalTemplate` is only ever used to extract the portion\n   * of the original template that was contained in a higher-order section.\n   * If the template doesn't use higher-order sections, this argument may\n   * be omitted.\n   */\n  Writer.prototype.renderTokens = function renderTokens (tokens, context, partials, originalTemplate) {\n    var buffer = '';\n\n    var token, symbol, value;\n    for (var i = 0, numTokens = tokens.length; i < numTokens; ++i) {\n      value = undefined;\n      token = tokens[i];\n      symbol = token[0];\n\n      if (symbol === '#') value = this.renderSection(token, context, partials, originalTemplate);\n      else if (symbol === '^') value = this.renderInverted(token, context, partials, originalTemplate);\n      else if (symbol === '>') value = this.renderPartial(token, context, partials, originalTemplate);\n      else if (symbol === '&') value = this.unescapedValue(token, context);\n      else if (symbol === 'name') value = this.escapedValue(token, context);\n      else if (symbol === 'text') value = this.rawValue(token);\n\n      if (value !== undefined)\n        buffer += value;\n    }\n\n    return buffer;\n  };\n\n  Writer.prototype.renderSection = function renderSection (token, context, partials, originalTemplate) {\n    var self = this;\n    var buffer = '';\n    var value = context.lookup(token[1]);\n\n    // This function is used to render an arbitrary template\n    // in the current context by higher-order sections.\n    function subRender (template) {\n      return self.render(template, context, partials);\n    }\n\n    if (!value) return;\n\n    if (isArray(value)) {\n      for (var j = 0, valueLength = value.length; j < valueLength; ++j) {\n        buffer += this.renderTokens(token[4], context.push(value[j]), partials, originalTemplate);\n      }\n    } else if (typeof value === 'object' || typeof value === 'string' || typeof value === 'number') {\n      buffer += this.renderTokens(token[4], context.push(value), partials, originalTemplate);\n    } else if (isFunction(value)) {\n      if (typeof originalTemplate !== 'string')\n        throw new Error('Cannot use higher-order sections without the original template');\n\n      // Extract the portion of the original template that the section contains.\n      value = value.call(context.view, originalTemplate.slice(token[3], token[5]), subRender);\n\n      if (value != null)\n        buffer += value;\n    } else {\n      buffer += this.renderTokens(token[4], context, partials, originalTemplate);\n    }\n    return buffer;\n  };\n\n  Writer.prototype.renderInverted = function renderInverted (token, context, partials, originalTemplate) {\n    var value = context.lookup(token[1]);\n\n    // Use JavaScript's definition of falsy. Include empty arrays.\n    // See https://github.com/janl/mustache.js/issues/186\n    if (!value || (isArray(value) && value.length === 0))\n      return this.renderTokens(token[4], context, partials, originalTemplate);\n  };\n\n  Writer.prototype.renderPartial = function renderPartial (token, context, partials) {\n    if (!partials) return;\n\n    var value = isFunction(partials) ? partials(token[1]) : partials[token[1]];\n    if (value != null)\n      return this.renderTokens(this.parse(value), context, partials, value);\n  };\n\n  Writer.prototype.unescapedValue = function unescapedValue (token, context) {\n    var value = context.lookup(token[1]);\n    if (value != null)\n      return value;\n  };\n\n  Writer.prototype.escapedValue = function escapedValue (token, context) {\n    var value = context.lookup(token[1]);\n    if (value != null)\n      return mustache.escape(value);\n  };\n\n  Writer.prototype.rawValue = function rawValue (token) {\n    return token[1];\n  };\n\n  mustache.name = 'mustache.js';\n  mustache.version = '2.2.1';\n  mustache.tags = [ '{{', '}}' ];\n\n  // All high-level mustache.* functions use this writer.\n  var defaultWriter = new Writer();\n\n  /**\n   * Clears all cached templates in the default writer.\n   */\n  mustache.clearCache = function clearCache () {\n    return defaultWriter.clearCache();\n  };\n\n  /**\n   * Parses and caches the given template in the default writer and returns the\n   * array of tokens it contains. Doing this ahead of time avoids the need to\n   * parse templates on the fly as they are rendered.\n   */\n  mustache.parse = function parse (template, tags) {\n    return defaultWriter.parse(template, tags);\n  };\n\n  /**\n   * Renders the `template` with the given `view` and `partials` using the\n   * default writer.\n   */\n  mustache.render = function render (template, view, partials) {\n    if (typeof template !== 'string') {\n      throw new TypeError('Invalid template! Template should be a \"string\" ' +\n                          'but \"' + typeStr(template) + '\" was given as the first ' +\n                          'argument for mustache#render(template, view, partials)');\n    }\n\n    return defaultWriter.render(template, view, partials);\n  };\n\n  // This is here for backwards compatibility with 0.4.x.,\n  /*eslint-disable */ // eslint wants camel cased function name\n  mustache.to_html = function to_html (template, view, partials, send) {\n    /*eslint-enable*/\n\n    var result = mustache.render(template, view, partials);\n\n    if (isFunction(send)) {\n      send(result);\n    } else {\n      return result;\n    }\n  };\n\n  // Export the escaping function so that the user may override it.\n  // See https://github.com/janl/mustache.js/issues/244\n  mustache.escape = escapeHtml;\n\n  // Export these mainly for testing, but also for advanced usage.\n  mustache.Scanner = Scanner;\n  mustache.Context = Context;\n  mustache.Writer = Writer;\n\n}));\n","var html_sanitize = require('./sanitizer-bundle.js');\n\nmodule.exports = function(_) {\n    if (!_) return '';\n    return html_sanitize(_, cleanUrl, cleanId);\n};\n\n// https://bugzilla.mozilla.org/show_bug.cgi?id=255107\nfunction cleanUrl(url) {\n    'use strict';\n    if (/^https?/.test(url.getScheme())) return url.toString();\n    if (/^mailto?/.test(url.getScheme())) return url.toString();\n    if ('data' == url.getScheme() && /^image/.test(url.getPath())) {\n        return url.toString();\n    }\n}\n\nfunction cleanId(id) { return id; }\n","\n// Copyright (C) 2010 Google Inc.\n//\n// Licensed under the Apache License, Version 2.0 (the \"License\");\n// you may not use this file except in compliance with the License.\n// You may obtain a copy of the License at\n//\n//      http://www.apache.org/licenses/LICENSE-2.0\n//\n// Unless required by applicable law or agreed to in writing, software\n// distributed under the License is distributed on an \"AS IS\" BASIS,\n// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n// See the License for the specific language governing permissions and\n// limitations under the License.\n\n/**\n * @fileoverview\n * Implements RFC 3986 for parsing/formatting URIs.\n *\n * @author mikesamuel@gmail.com\n * \\@provides URI\n * \\@overrides window\n */\n\nvar URI = (function () {\n\n/**\n * creates a uri from the string form.  The parser is relaxed, so special\n * characters that aren't escaped but don't cause ambiguities will not cause\n * parse failures.\n *\n * @return {URI|null}\n */\nfunction parse(uriStr) {\n  var m = ('' + uriStr).match(URI_RE_);\n  if (!m) { return null; }\n  return new URI(\n      nullIfAbsent(m[1]),\n      nullIfAbsent(m[2]),\n      nullIfAbsent(m[3]),\n      nullIfAbsent(m[4]),\n      nullIfAbsent(m[5]),\n      nullIfAbsent(m[6]),\n      nullIfAbsent(m[7]));\n}\n\n\n/**\n * creates a uri from the given parts.\n *\n * @param scheme {string} an unencoded scheme such as \"http\" or null\n * @param credentials {string} unencoded user credentials or null\n * @param domain {string} an unencoded domain name or null\n * @param port {number} a port number in [1, 32768].\n *    -1 indicates no port, as does null.\n * @param path {string} an unencoded path\n * @param query {Array.<string>|string|null} a list of unencoded cgi\n *   parameters where even values are keys and odds the corresponding values\n *   or an unencoded query.\n * @param fragment {string} an unencoded fragment without the \"#\" or null.\n * @return {URI}\n */\nfunction create(scheme, credentials, domain, port, path, query, fragment) {\n  var uri = new URI(\n      encodeIfExists2(scheme, URI_DISALLOWED_IN_SCHEME_OR_CREDENTIALS_),\n      encodeIfExists2(\n          credentials, URI_DISALLOWED_IN_SCHEME_OR_CREDENTIALS_),\n      encodeIfExists(domain),\n      port > 0 ? port.toString() : null,\n      encodeIfExists2(path, URI_DISALLOWED_IN_PATH_),\n      null,\n      encodeIfExists(fragment));\n  if (query) {\n    if ('string' === typeof query) {\n      uri.setRawQuery(query.replace(/[^?&=0-9A-Za-z_\\-~.%]/g, encodeOne));\n    } else {\n      uri.setAllParameters(query);\n    }\n  }\n  return uri;\n}\nfunction encodeIfExists(unescapedPart) {\n  if ('string' == typeof unescapedPart) {\n    return encodeURIComponent(unescapedPart);\n  }\n  return null;\n};\n/**\n * if unescapedPart is non null, then escapes any characters in it that aren't\n * valid characters in a url and also escapes any special characters that\n * appear in extra.\n *\n * @param unescapedPart {string}\n * @param extra {RegExp} a character set of characters in [\\01-\\177].\n * @return {string|null} null iff unescapedPart == null.\n */\nfunction encodeIfExists2(unescapedPart, extra) {\n  if ('string' == typeof unescapedPart) {\n    return encodeURI(unescapedPart).replace(extra, encodeOne);\n  }\n  return null;\n};\n/** converts a character in [\\01-\\177] to its url encoded equivalent. */\nfunction encodeOne(ch) {\n  var n = ch.charCodeAt(0);\n  return '%' + '0123456789ABCDEF'.charAt((n >> 4) & 0xf) +\n      '0123456789ABCDEF'.charAt(n & 0xf);\n}\n\n/**\n * {@updoc\n *  $ normPath('foo/./bar')\n *  # 'foo/bar'\n *  $ normPath('./foo')\n *  # 'foo'\n *  $ normPath('foo/.')\n *  # 'foo'\n *  $ normPath('foo//bar')\n *  # 'foo/bar'\n * }\n */\nfunction normPath(path) {\n  return path.replace(/(^|\\/)\\.(?:\\/|$)/g, '$1').replace(/\\/{2,}/g, '/');\n}\n\nvar PARENT_DIRECTORY_HANDLER = new RegExp(\n    ''\n    // A path break\n    + '(/|^)'\n    // followed by a non .. path element\n    // (cannot be . because normPath is used prior to this RegExp)\n    + '(?:[^./][^/]*|\\\\.{2,}(?:[^./][^/]*)|\\\\.{3,}[^/]*)'\n    // followed by .. followed by a path break.\n    + '/\\\\.\\\\.(?:/|$)');\n\nvar PARENT_DIRECTORY_HANDLER_RE = new RegExp(PARENT_DIRECTORY_HANDLER);\n\nvar EXTRA_PARENT_PATHS_RE = /^(?:\\.\\.\\/)*(?:\\.\\.$)?/;\n\n/**\n * Normalizes its input path and collapses all . and .. sequences except for\n * .. sequences that would take it above the root of the current parent\n * directory.\n * {@updoc\n *  $ collapse_dots('foo/../bar')\n *  # 'bar'\n *  $ collapse_dots('foo/./bar')\n *  # 'foo/bar'\n *  $ collapse_dots('foo/../bar/./../../baz')\n *  # 'baz'\n *  $ collapse_dots('../foo')\n *  # '../foo'\n *  $ collapse_dots('../foo').replace(EXTRA_PARENT_PATHS_RE, '')\n *  # 'foo'\n * }\n */\nfunction collapse_dots(path) {\n  if (path === null) { return null; }\n  var p = normPath(path);\n  // Only /../ left to flatten\n  var r = PARENT_DIRECTORY_HANDLER_RE;\n  // We replace with $1 which matches a / before the .. because this\n  // guarantees that:\n  // (1) we have at most 1 / between the adjacent place,\n  // (2) always have a slash if there is a preceding path section, and\n  // (3) we never turn a relative path into an absolute path.\n  for (var q; (q = p.replace(r, '$1')) != p; p = q) {};\n  return p;\n}\n\n/**\n * resolves a relative url string to a base uri.\n * @return {URI}\n */\nfunction resolve(baseUri, relativeUri) {\n  // there are several kinds of relative urls:\n  // 1. //foo - replaces everything from the domain on.  foo is a domain name\n  // 2. foo - replaces the last part of the path, the whole query and fragment\n  // 3. /foo - replaces the the path, the query and fragment\n  // 4. ?foo - replace the query and fragment\n  // 5. #foo - replace the fragment only\n\n  var absoluteUri = baseUri.clone();\n  // we satisfy these conditions by looking for the first part of relativeUri\n  // that is not blank and applying defaults to the rest\n\n  var overridden = relativeUri.hasScheme();\n\n  if (overridden) {\n    absoluteUri.setRawScheme(relativeUri.getRawScheme());\n  } else {\n    overridden = relativeUri.hasCredentials();\n  }\n\n  if (overridden) {\n    absoluteUri.setRawCredentials(relativeUri.getRawCredentials());\n  } else {\n    overridden = relativeUri.hasDomain();\n  }\n\n  if (overridden) {\n    absoluteUri.setRawDomain(relativeUri.getRawDomain());\n  } else {\n    overridden = relativeUri.hasPort();\n  }\n\n  var rawPath = relativeUri.getRawPath();\n  var simplifiedPath = collapse_dots(rawPath);\n  if (overridden) {\n    absoluteUri.setPort(relativeUri.getPort());\n    simplifiedPath = simplifiedPath\n        && simplifiedPath.replace(EXTRA_PARENT_PATHS_RE, '');\n  } else {\n    overridden = !!rawPath;\n    if (overridden) {\n      // resolve path properly\n      if (simplifiedPath.charCodeAt(0) !== 0x2f /* / */) {  // path is relative\n        var absRawPath = collapse_dots(absoluteUri.getRawPath() || '')\n            .replace(EXTRA_PARENT_PATHS_RE, '');\n        var slash = absRawPath.lastIndexOf('/') + 1;\n        simplifiedPath = collapse_dots(\n            (slash ? absRawPath.substring(0, slash) : '')\n            + collapse_dots(rawPath))\n            .replace(EXTRA_PARENT_PATHS_RE, '');\n      }\n    } else {\n      simplifiedPath = simplifiedPath\n          && simplifiedPath.replace(EXTRA_PARENT_PATHS_RE, '');\n      if (simplifiedPath !== rawPath) {\n        absoluteUri.setRawPath(simplifiedPath);\n      }\n    }\n  }\n\n  if (overridden) {\n    absoluteUri.setRawPath(simplifiedPath);\n  } else {\n    overridden = relativeUri.hasQuery();\n  }\n\n  if (overridden) {\n    absoluteUri.setRawQuery(relativeUri.getRawQuery());\n  } else {\n    overridden = relativeUri.hasFragment();\n  }\n\n  if (overridden) {\n    absoluteUri.setRawFragment(relativeUri.getRawFragment());\n  }\n\n  return absoluteUri;\n}\n\n/**\n * a mutable URI.\n *\n * This class contains setters and getters for the parts of the URI.\n * The <tt>getXYZ</tt>/<tt>setXYZ</tt> methods return the decoded part -- so\n * <code>uri.parse('/foo%20bar').getPath()</code> will return the decoded path,\n * <tt>/foo bar</tt>.\n *\n * <p>The raw versions of fields are available too.\n * <code>uri.parse('/foo%20bar').getRawPath()</code> will return the raw path,\n * <tt>/foo%20bar</tt>.  Use the raw setters with care, since\n * <code>URI::toString</code> is not guaranteed to return a valid url if a\n * raw setter was used.\n *\n * <p>All setters return <tt>this</tt> and so may be chained, a la\n * <code>uri.parse('/foo').setFragment('part').toString()</code>.\n *\n * <p>You should not use this constructor directly -- please prefer the factory\n * functions {@link uri.parse}, {@link uri.create}, {@link uri.resolve}\n * instead.</p>\n *\n * <p>The parameters are all raw (assumed to be properly escaped) parts, and\n * any (but not all) may be null.  Undefined is not allowed.</p>\n *\n * @constructor\n */\nfunction URI(\n    rawScheme,\n    rawCredentials, rawDomain, port,\n    rawPath, rawQuery, rawFragment) {\n  this.scheme_ = rawScheme;\n  this.credentials_ = rawCredentials;\n  this.domain_ = rawDomain;\n  this.port_ = port;\n  this.path_ = rawPath;\n  this.query_ = rawQuery;\n  this.fragment_ = rawFragment;\n  /**\n   * @type {Array|null}\n   */\n  this.paramCache_ = null;\n}\n\n/** returns the string form of the url. */\nURI.prototype.toString = function () {\n  var out = [];\n  if (null !== this.scheme_) { out.push(this.scheme_, ':'); }\n  if (null !== this.domain_) {\n    out.push('//');\n    if (null !== this.credentials_) { out.push(this.credentials_, '@'); }\n    out.push(this.domain_);\n    if (null !== this.port_) { out.push(':', this.port_.toString()); }\n  }\n  if (null !== this.path_) { out.push(this.path_); }\n  if (null !== this.query_) { out.push('?', this.query_); }\n  if (null !== this.fragment_) { out.push('#', this.fragment_); }\n  return out.join('');\n};\n\nURI.prototype.clone = function () {\n  return new URI(this.scheme_, this.credentials_, this.domain_, this.port_,\n                 this.path_, this.query_, this.fragment_);\n};\n\nURI.prototype.getScheme = function () {\n  // HTML5 spec does not require the scheme to be lowercased but\n  // all common browsers except Safari lowercase the scheme.\n  return this.scheme_ && decodeURIComponent(this.scheme_).toLowerCase();\n};\nURI.prototype.getRawScheme = function () {\n  return this.scheme_;\n};\nURI.prototype.setScheme = function (newScheme) {\n  this.scheme_ = encodeIfExists2(\n      newScheme, URI_DISALLOWED_IN_SCHEME_OR_CREDENTIALS_);\n  return this;\n};\nURI.prototype.setRawScheme = function (newScheme) {\n  this.scheme_ = newScheme ? newScheme : null;\n  return this;\n};\nURI.prototype.hasScheme = function () {\n  return null !== this.scheme_;\n};\n\n\nURI.prototype.getCredentials = function () {\n  return this.credentials_ && decodeURIComponent(this.credentials_);\n};\nURI.prototype.getRawCredentials = function () {\n  return this.credentials_;\n};\nURI.prototype.setCredentials = function (newCredentials) {\n  this.credentials_ = encodeIfExists2(\n      newCredentials, URI_DISALLOWED_IN_SCHEME_OR_CREDENTIALS_);\n\n  return this;\n};\nURI.prototype.setRawCredentials = function (newCredentials) {\n  this.credentials_ = newCredentials ? newCredentials : null;\n  return this;\n};\nURI.prototype.hasCredentials = function () {\n  return null !== this.credentials_;\n};\n\n\nURI.prototype.getDomain = function () {\n  return this.domain_ && decodeURIComponent(this.domain_);\n};\nURI.prototype.getRawDomain = function () {\n  return this.domain_;\n};\nURI.prototype.setDomain = function (newDomain) {\n  return this.setRawDomain(newDomain && encodeURIComponent(newDomain));\n};\nURI.prototype.setRawDomain = function (newDomain) {\n  this.domain_ = newDomain ? newDomain : null;\n  // Maintain the invariant that paths must start with a slash when the URI\n  // is not path-relative.\n  return this.setRawPath(this.path_);\n};\nURI.prototype.hasDomain = function () {\n  return null !== this.domain_;\n};\n\n\nURI.prototype.getPort = function () {\n  return this.port_ && decodeURIComponent(this.port_);\n};\nURI.prototype.setPort = function (newPort) {\n  if (newPort) {\n    newPort = Number(newPort);\n    if (newPort !== (newPort & 0xffff)) {\n      throw new Error('Bad port number ' + newPort);\n    }\n    this.port_ = '' + newPort;\n  } else {\n    this.port_ = null;\n  }\n  return this;\n};\nURI.prototype.hasPort = function () {\n  return null !== this.port_;\n};\n\n\nURI.prototype.getPath = function () {\n  return this.path_ && decodeURIComponent(this.path_);\n};\nURI.prototype.getRawPath = function () {\n  return this.path_;\n};\nURI.prototype.setPath = function (newPath) {\n  return this.setRawPath(encodeIfExists2(newPath, URI_DISALLOWED_IN_PATH_));\n};\nURI.prototype.setRawPath = function (newPath) {\n  if (newPath) {\n    newPath = String(newPath);\n    this.path_ = \n      // Paths must start with '/' unless this is a path-relative URL.\n      (!this.domain_ || /^\\//.test(newPath)) ? newPath : '/' + newPath;\n  } else {\n    this.path_ = null;\n  }\n  return this;\n};\nURI.prototype.hasPath = function () {\n  return null !== this.path_;\n};\n\n\nURI.prototype.getQuery = function () {\n  // From http://www.w3.org/Addressing/URL/4_URI_Recommentations.html\n  // Within the query string, the plus sign is reserved as shorthand notation\n  // for a space.\n  return this.query_ && decodeURIComponent(this.query_).replace(/\\+/g, ' ');\n};\nURI.prototype.getRawQuery = function () {\n  return this.query_;\n};\nURI.prototype.setQuery = function (newQuery) {\n  this.paramCache_ = null;\n  this.query_ = encodeIfExists(newQuery);\n  return this;\n};\nURI.prototype.setRawQuery = function (newQuery) {\n  this.paramCache_ = null;\n  this.query_ = newQuery ? newQuery : null;\n  return this;\n};\nURI.prototype.hasQuery = function () {\n  return null !== this.query_;\n};\n\n/**\n * sets the query given a list of strings of the form\n * [ key0, value0, key1, value1, ... ].\n *\n * <p><code>uri.setAllParameters(['a', 'b', 'c', 'd']).getQuery()</code>\n * will yield <code>'a=b&c=d'</code>.\n */\nURI.prototype.setAllParameters = function (params) {\n  if (typeof params === 'object') {\n    if (!(params instanceof Array)\n        && (params instanceof Object\n            || Object.prototype.toString.call(params) !== '[object Array]')) {\n      var newParams = [];\n      var i = -1;\n      for (var k in params) {\n        var v = params[k];\n        if ('string' === typeof v) {\n          newParams[++i] = k;\n          newParams[++i] = v;\n        }\n      }\n      params = newParams;\n    }\n  }\n  this.paramCache_ = null;\n  var queryBuf = [];\n  var separator = '';\n  for (var j = 0; j < params.length;) {\n    var k = params[j++];\n    var v = params[j++];\n    queryBuf.push(separator, encodeURIComponent(k.toString()));\n    separator = '&';\n    if (v) {\n      queryBuf.push('=', encodeURIComponent(v.toString()));\n    }\n  }\n  this.query_ = queryBuf.join('');\n  return this;\n};\nURI.prototype.checkParameterCache_ = function () {\n  if (!this.paramCache_) {\n    var q = this.query_;\n    if (!q) {\n      this.paramCache_ = [];\n    } else {\n      var cgiParams = q.split(/[&\\?]/);\n      var out = [];\n      var k = -1;\n      for (var i = 0; i < cgiParams.length; ++i) {\n        var m = cgiParams[i].match(/^([^=]*)(?:=(.*))?$/);\n        // From http://www.w3.org/Addressing/URL/4_URI_Recommentations.html\n        // Within the query string, the plus sign is reserved as shorthand\n        // notation for a space.\n        out[++k] = decodeURIComponent(m[1]).replace(/\\+/g, ' ');\n        out[++k] = decodeURIComponent(m[2] || '').replace(/\\+/g, ' ');\n      }\n      this.paramCache_ = out;\n    }\n  }\n};\n/**\n * sets the values of the named cgi parameters.\n *\n * <p>So, <code>uri.parse('foo?a=b&c=d&e=f').setParameterValues('c', ['new'])\n * </code> yields <tt>foo?a=b&c=new&e=f</tt>.</p>\n *\n * @param key {string}\n * @param values {Array.<string>} the new values.  If values is a single string\n *   then it will be treated as the sole value.\n */\nURI.prototype.setParameterValues = function (key, values) {\n  // be nice and avoid subtle bugs where [] operator on string performs charAt\n  // on some browsers and crashes on IE\n  if (typeof values === 'string') {\n    values = [ values ];\n  }\n\n  this.checkParameterCache_();\n  var newValueIndex = 0;\n  var pc = this.paramCache_;\n  var params = [];\n  for (var i = 0, k = 0; i < pc.length; i += 2) {\n    if (key === pc[i]) {\n      if (newValueIndex < values.length) {\n        params.push(key, values[newValueIndex++]);\n      }\n    } else {\n      params.push(pc[i], pc[i + 1]);\n    }\n  }\n  while (newValueIndex < values.length) {\n    params.push(key, values[newValueIndex++]);\n  }\n  this.setAllParameters(params);\n  return this;\n};\nURI.prototype.removeParameter = function (key) {\n  return this.setParameterValues(key, []);\n};\n/**\n * returns the parameters specified in the query part of the uri as a list of\n * keys and values like [ key0, value0, key1, value1, ... ].\n *\n * @return {Array.<string>}\n */\nURI.prototype.getAllParameters = function () {\n  this.checkParameterCache_();\n  return this.paramCache_.slice(0, this.paramCache_.length);\n};\n/**\n * returns the value<b>s</b> for a given cgi parameter as a list of decoded\n * query parameter values.\n * @return {Array.<string>}\n */\nURI.prototype.getParameterValues = function (paramNameUnescaped) {\n  this.checkParameterCache_();\n  var values = [];\n  for (var i = 0; i < this.paramCache_.length; i += 2) {\n    if (paramNameUnescaped === this.paramCache_[i]) {\n      values.push(this.paramCache_[i + 1]);\n    }\n  }\n  return values;\n};\n/**\n * returns a map of cgi parameter names to (non-empty) lists of values.\n * @return {Object.<string,Array.<string>>}\n */\nURI.prototype.getParameterMap = function (paramNameUnescaped) {\n  this.checkParameterCache_();\n  var paramMap = {};\n  for (var i = 0; i < this.paramCache_.length; i += 2) {\n    var key = this.paramCache_[i++],\n      value = this.paramCache_[i++];\n    if (!(key in paramMap)) {\n      paramMap[key] = [value];\n    } else {\n      paramMap[key].push(value);\n    }\n  }\n  return paramMap;\n};\n/**\n * returns the first value for a given cgi parameter or null if the given\n * parameter name does not appear in the query string.\n * If the given parameter name does appear, but has no '<tt>=</tt>' following\n * it, then the empty string will be returned.\n * @return {string|null}\n */\nURI.prototype.getParameterValue = function (paramNameUnescaped) {\n  this.checkParameterCache_();\n  for (var i = 0; i < this.paramCache_.length; i += 2) {\n    if (paramNameUnescaped === this.paramCache_[i]) {\n      return this.paramCache_[i + 1];\n    }\n  }\n  return null;\n};\n\nURI.prototype.getFragment = function () {\n  return this.fragment_ && decodeURIComponent(this.fragment_);\n};\nURI.prototype.getRawFragment = function () {\n  return this.fragment_;\n};\nURI.prototype.setFragment = function (newFragment) {\n  this.fragment_ = newFragment ? encodeURIComponent(newFragment) : null;\n  return this;\n};\nURI.prototype.setRawFragment = function (newFragment) {\n  this.fragment_ = newFragment ? newFragment : null;\n  return this;\n};\nURI.prototype.hasFragment = function () {\n  return null !== this.fragment_;\n};\n\nfunction nullIfAbsent(matchPart) {\n  return ('string' == typeof matchPart) && (matchPart.length > 0)\n         ? matchPart\n         : null;\n}\n\n\n\n\n/**\n * a regular expression for breaking a URI into its component parts.\n *\n * <p>http://www.gbiv.com/protocols/uri/rfc/rfc3986.html#RFC2234 says\n * As the \"first-match-wins\" algorithm is identical to the \"greedy\"\n * disambiguation method used by POSIX regular expressions, it is natural and\n * commonplace to use a regular expression for parsing the potential five\n * components of a URI reference.\n *\n * <p>The following line is the regular expression for breaking-down a\n * well-formed URI reference into its components.\n *\n * <pre>\n * ^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?\n *  12            3  4          5       6  7        8 9\n * </pre>\n *\n * <p>The numbers in the second line above are only to assist readability; they\n * indicate the reference points for each subexpression (i.e., each paired\n * parenthesis). We refer to the value matched for subexpression <n> as $<n>.\n * For example, matching the above expression to\n * <pre>\n *     http://www.ics.uci.edu/pub/ietf/uri/#Related\n * </pre>\n * results in the following subexpression matches:\n * <pre>\n *    $1 = http:\n *    $2 = http\n *    $3 = //www.ics.uci.edu\n *    $4 = www.ics.uci.edu\n *    $5 = /pub/ietf/uri/\n *    $6 = <undefined>\n *    $7 = <undefined>\n *    $8 = #Related\n *    $9 = Related\n * </pre>\n * where <undefined> indicates that the component is not present, as is the\n * case for the query component in the above example. Therefore, we can\n * determine the value of the five components as\n * <pre>\n *    scheme    = $2\n *    authority = $4\n *    path      = $5\n *    query     = $7\n *    fragment  = $9\n * </pre>\n *\n * <p>msamuel: I have modified the regular expression slightly to expose the\n * credentials, domain, and port separately from the authority.\n * The modified version yields\n * <pre>\n *    $1 = http              scheme\n *    $2 = <undefined>       credentials -\\\n *    $3 = www.ics.uci.edu   domain       | authority\n *    $4 = <undefined>       port        -/\n *    $5 = /pub/ietf/uri/    path\n *    $6 = <undefined>       query without ?\n *    $7 = Related           fragment without #\n * </pre>\n */\nvar URI_RE_ = new RegExp(\n      \"^\" +\n      \"(?:\" +\n        \"([^:/?#]+)\" +         // scheme\n      \":)?\" +\n      \"(?://\" +\n        \"(?:([^/?#]*)@)?\" +    // credentials\n        \"([^/?#:@]*)\" +        // domain\n        \"(?::([0-9]+))?\" +     // port\n      \")?\" +\n      \"([^?#]+)?\" +            // path\n      \"(?:\\\\?([^#]*))?\" +      // query\n      \"(?:#(.*))?\" +           // fragment\n      \"$\"\n      );\n\nvar URI_DISALLOWED_IN_SCHEME_OR_CREDENTIALS_ = /[#\\/\\?@]/g;\nvar URI_DISALLOWED_IN_PATH_ = /[\\#\\?]/g;\n\nURI.parse = parse;\nURI.create = create;\nURI.resolve = resolve;\nURI.collapse_dots = collapse_dots;  // Visible for testing.\n\n// lightweight string-based api for loadModuleMaker\nURI.utils = {\n  mimeTypeOf: function (uri) {\n    var uriObj = parse(uri);\n    if (/\\.html$/.test(uriObj.getPath())) {\n      return 'text/html';\n    } else {\n      return 'application/javascript';\n    }\n  },\n  resolve: function (base, uri) {\n    if (base) {\n      return resolve(parse(base), parse(uri)).toString();\n    } else {\n      return '' + uri;\n    }\n  }\n};\n\n\nreturn URI;\n})();\n\n// Copyright Google Inc.\n// Licensed under the Apache Licence Version 2.0\n// Autogenerated at Mon Feb 25 13:05:42 EST 2013\n// @overrides window\n// @provides html4\nvar html4 = {};\nhtml4.atype = {\n  'NONE': 0,\n  'URI': 1,\n  'URI_FRAGMENT': 11,\n  'SCRIPT': 2,\n  'STYLE': 3,\n  'HTML': 12,\n  'ID': 4,\n  'IDREF': 5,\n  'IDREFS': 6,\n  'GLOBAL_NAME': 7,\n  'LOCAL_NAME': 8,\n  'CLASSES': 9,\n  'FRAME_TARGET': 10,\n  'MEDIA_QUERY': 13\n};\nhtml4[ 'atype' ] = html4.atype;\nhtml4.ATTRIBS = {\n  '*::class': 9,\n  '*::dir': 0,\n  '*::draggable': 0,\n  '*::hidden': 0,\n  '*::id': 4,\n  '*::inert': 0,\n  '*::itemprop': 0,\n  '*::itemref': 6,\n  '*::itemscope': 0,\n  '*::lang': 0,\n  '*::onblur': 2,\n  '*::onchange': 2,\n  '*::onclick': 2,\n  '*::ondblclick': 2,\n  '*::onfocus': 2,\n  '*::onkeydown': 2,\n  '*::onkeypress': 2,\n  '*::onkeyup': 2,\n  '*::onload': 2,\n  '*::onmousedown': 2,\n  '*::onmousemove': 2,\n  '*::onmouseout': 2,\n  '*::onmouseover': 2,\n  '*::onmouseup': 2,\n  '*::onreset': 2,\n  '*::onscroll': 2,\n  '*::onselect': 2,\n  '*::onsubmit': 2,\n  '*::onunload': 2,\n  '*::spellcheck': 0,\n  '*::style': 3,\n  '*::title': 0,\n  '*::translate': 0,\n  'a::accesskey': 0,\n  'a::coords': 0,\n  'a::href': 1,\n  'a::hreflang': 0,\n  'a::name': 7,\n  'a::onblur': 2,\n  'a::onfocus': 2,\n  'a::shape': 0,\n  'a::tabindex': 0,\n  'a::target': 10,\n  'a::type': 0,\n  'area::accesskey': 0,\n  'area::alt': 0,\n  'area::coords': 0,\n  'area::href': 1,\n  'area::nohref': 0,\n  'area::onblur': 2,\n  'area::onfocus': 2,\n  'area::shape': 0,\n  'area::tabindex': 0,\n  'area::target': 10,\n  'audio::controls': 0,\n  'audio::loop': 0,\n  'audio::mediagroup': 5,\n  'audio::muted': 0,\n  'audio::preload': 0,\n  'bdo::dir': 0,\n  'blockquote::cite': 1,\n  'br::clear': 0,\n  'button::accesskey': 0,\n  'button::disabled': 0,\n  'button::name': 8,\n  'button::onblur': 2,\n  'button::onfocus': 2,\n  'button::tabindex': 0,\n  'button::type': 0,\n  'button::value': 0,\n  'canvas::height': 0,\n  'canvas::width': 0,\n  'caption::align': 0,\n  'col::align': 0,\n  'col::char': 0,\n  'col::charoff': 0,\n  'col::span': 0,\n  'col::valign': 0,\n  'col::width': 0,\n  'colgroup::align': 0,\n  'colgroup::char': 0,\n  'colgroup::charoff': 0,\n  'colgroup::span': 0,\n  'colgroup::valign': 0,\n  'colgroup::width': 0,\n  'command::checked': 0,\n  'command::command': 5,\n  'command::disabled': 0,\n  'command::icon': 1,\n  'command::label': 0,\n  'command::radiogroup': 0,\n  'command::type': 0,\n  'data::value': 0,\n  'del::cite': 1,\n  'del::datetime': 0,\n  'details::open': 0,\n  'dir::compact': 0,\n  'div::align': 0,\n  'dl::compact': 0,\n  'fieldset::disabled': 0,\n  'font::color': 0,\n  'font::face': 0,\n  'font::size': 0,\n  'form::accept': 0,\n  'form::action': 1,\n  'form::autocomplete': 0,\n  'form::enctype': 0,\n  'form::method': 0,\n  'form::name': 7,\n  'form::novalidate': 0,\n  'form::onreset': 2,\n  'form::onsubmit': 2,\n  'form::target': 10,\n  'h1::align': 0,\n  'h2::align': 0,\n  'h3::align': 0,\n  'h4::align': 0,\n  'h5::align': 0,\n  'h6::align': 0,\n  'hr::align': 0,\n  'hr::noshade': 0,\n  'hr::size': 0,\n  'hr::width': 0,\n  'iframe::align': 0,\n  'iframe::frameborder': 0,\n  'iframe::height': 0,\n  'iframe::marginheight': 0,\n  'iframe::marginwidth': 0,\n  'iframe::width': 0,\n  'img::align': 0,\n  'img::alt': 0,\n  'img::border': 0,\n  'img::height': 0,\n  'img::hspace': 0,\n  'img::ismap': 0,\n  'img::name': 7,\n  'img::src': 1,\n  'img::usemap': 11,\n  'img::vspace': 0,\n  'img::width': 0,\n  'input::accept': 0,\n  'input::accesskey': 0,\n  'input::align': 0,\n  'input::alt': 0,\n  'input::autocomplete': 0,\n  'input::checked': 0,\n  'input::disabled': 0,\n  'input::inputmode': 0,\n  'input::ismap': 0,\n  'input::list': 5,\n  'input::max': 0,\n  'input::maxlength': 0,\n  'input::min': 0,\n  'input::multiple': 0,\n  'input::name': 8,\n  'input::onblur': 2,\n  'input::onchange': 2,\n  'input::onfocus': 2,\n  'input::onselect': 2,\n  'input::placeholder': 0,\n  'input::readonly': 0,\n  'input::required': 0,\n  'input::size': 0,\n  'input::src': 1,\n  'input::step': 0,\n  'input::tabindex': 0,\n  'input::type': 0,\n  'input::usemap': 11,\n  'input::value': 0,\n  'ins::cite': 1,\n  'ins::datetime': 0,\n  'label::accesskey': 0,\n  'label::for': 5,\n  'label::onblur': 2,\n  'label::onfocus': 2,\n  'legend::accesskey': 0,\n  'legend::align': 0,\n  'li::type': 0,\n  'li::value': 0,\n  'map::name': 7,\n  'menu::compact': 0,\n  'menu::label': 0,\n  'menu::type': 0,\n  'meter::high': 0,\n  'meter::low': 0,\n  'meter::max': 0,\n  'meter::min': 0,\n  'meter::value': 0,\n  'ol::compact': 0,\n  'ol::reversed': 0,\n  'ol::start': 0,\n  'ol::type': 0,\n  'optgroup::disabled': 0,\n  'optgroup::label': 0,\n  'option::disabled': 0,\n  'option::label': 0,\n  'option::selected': 0,\n  'option::value': 0,\n  'output::for': 6,\n  'output::name': 8,\n  'p::align': 0,\n  'pre::width': 0,\n  'progress::max': 0,\n  'progress::min': 0,\n  'progress::value': 0,\n  'q::cite': 1,\n  'select::autocomplete': 0,\n  'select::disabled': 0,\n  'select::multiple': 0,\n  'select::name': 8,\n  'select::onblur': 2,\n  'select::onchange': 2,\n  'select::onfocus': 2,\n  'select::required': 0,\n  'select::size': 0,\n  'select::tabindex': 0,\n  'source::type': 0,\n  'table::align': 0,\n  'table::bgcolor': 0,\n  'table::border': 0,\n  'table::cellpadding': 0,\n  'table::cellspacing': 0,\n  'table::frame': 0,\n  'table::rules': 0,\n  'table::summary': 0,\n  'table::width': 0,\n  'tbody::align': 0,\n  'tbody::char': 0,\n  'tbody::charoff': 0,\n  'tbody::valign': 0,\n  'td::abbr': 0,\n  'td::align': 0,\n  'td::axis': 0,\n  'td::bgcolor': 0,\n  'td::char': 0,\n  'td::charoff': 0,\n  'td::colspan': 0,\n  'td::headers': 6,\n  'td::height': 0,\n  'td::nowrap': 0,\n  'td::rowspan': 0,\n  'td::scope': 0,\n  'td::valign': 0,\n  'td::width': 0,\n  'textarea::accesskey': 0,\n  'textarea::autocomplete': 0,\n  'textarea::cols': 0,\n  'textarea::disabled': 0,\n  'textarea::inputmode': 0,\n  'textarea::name': 8,\n  'textarea::onblur': 2,\n  'textarea::onchange': 2,\n  'textarea::onfocus': 2,\n  'textarea::onselect': 2,\n  'textarea::placeholder': 0,\n  'textarea::readonly': 0,\n  'textarea::required': 0,\n  'textarea::rows': 0,\n  'textarea::tabindex': 0,\n  'textarea::wrap': 0,\n  'tfoot::align': 0,\n  'tfoot::char': 0,\n  'tfoot::charoff': 0,\n  'tfoot::valign': 0,\n  'th::abbr': 0,\n  'th::align': 0,\n  'th::axis': 0,\n  'th::bgcolor': 0,\n  'th::char': 0,\n  'th::charoff': 0,\n  'th::colspan': 0,\n  'th::headers': 6,\n  'th::height': 0,\n  'th::nowrap': 0,\n  'th::rowspan': 0,\n  'th::scope': 0,\n  'th::valign': 0,\n  'th::width': 0,\n  'thead::align': 0,\n  'thead::char': 0,\n  'thead::charoff': 0,\n  'thead::valign': 0,\n  'tr::align': 0,\n  'tr::bgcolor': 0,\n  'tr::char': 0,\n  'tr::charoff': 0,\n  'tr::valign': 0,\n  'track::default': 0,\n  'track::kind': 0,\n  'track::label': 0,\n  'track::srclang': 0,\n  'ul::compact': 0,\n  'ul::type': 0,\n  'video::controls': 0,\n  'video::height': 0,\n  'video::loop': 0,\n  'video::mediagroup': 5,\n  'video::muted': 0,\n  'video::poster': 1,\n  'video::preload': 0,\n  'video::width': 0\n};\nhtml4[ 'ATTRIBS' ] = html4.ATTRIBS;\nhtml4.eflags = {\n  'OPTIONAL_ENDTAG': 1,\n  'EMPTY': 2,\n  'CDATA': 4,\n  'RCDATA': 8,\n  'UNSAFE': 16,\n  'FOLDABLE': 32,\n  'SCRIPT': 64,\n  'STYLE': 128,\n  'VIRTUALIZED': 256\n};\nhtml4[ 'eflags' ] = html4.eflags;\n// these are bitmasks of the eflags above.\nhtml4.ELEMENTS = {\n  'a': 0,\n  'abbr': 0,\n  'acronym': 0,\n  'address': 0,\n  'applet': 272,\n  'area': 2,\n  'article': 0,\n  'aside': 0,\n  'audio': 0,\n  'b': 0,\n  'base': 274,\n  'basefont': 274,\n  'bdi': 0,\n  'bdo': 0,\n  'big': 0,\n  'blockquote': 0,\n  'body': 305,\n  'br': 2,\n  'button': 0,\n  'canvas': 0,\n  'caption': 0,\n  'center': 0,\n  'cite': 0,\n  'code': 0,\n  'col': 2,\n  'colgroup': 1,\n  'command': 2,\n  'data': 0,\n  'datalist': 0,\n  'dd': 1,\n  'del': 0,\n  'details': 0,\n  'dfn': 0,\n  'dialog': 272,\n  'dir': 0,\n  'div': 0,\n  'dl': 0,\n  'dt': 1,\n  'em': 0,\n  'fieldset': 0,\n  'figcaption': 0,\n  'figure': 0,\n  'font': 0,\n  'footer': 0,\n  'form': 0,\n  'frame': 274,\n  'frameset': 272,\n  'h1': 0,\n  'h2': 0,\n  'h3': 0,\n  'h4': 0,\n  'h5': 0,\n  'h6': 0,\n  'head': 305,\n  'header': 0,\n  'hgroup': 0,\n  'hr': 2,\n  'html': 305,\n  'i': 0,\n  'iframe': 16,\n  'img': 2,\n  'input': 2,\n  'ins': 0,\n  'isindex': 274,\n  'kbd': 0,\n  'keygen': 274,\n  'label': 0,\n  'legend': 0,\n  'li': 1,\n  'link': 274,\n  'map': 0,\n  'mark': 0,\n  'menu': 0,\n  'meta': 274,\n  'meter': 0,\n  'nav': 0,\n  'nobr': 0,\n  'noembed': 276,\n  'noframes': 276,\n  'noscript': 276,\n  'object': 272,\n  'ol': 0,\n  'optgroup': 0,\n  'option': 1,\n  'output': 0,\n  'p': 1,\n  'param': 274,\n  'pre': 0,\n  'progress': 0,\n  'q': 0,\n  's': 0,\n  'samp': 0,\n  'script': 84,\n  'section': 0,\n  'select': 0,\n  'small': 0,\n  'source': 2,\n  'span': 0,\n  'strike': 0,\n  'strong': 0,\n  'style': 148,\n  'sub': 0,\n  'summary': 0,\n  'sup': 0,\n  'table': 0,\n  'tbody': 1,\n  'td': 1,\n  'textarea': 8,\n  'tfoot': 1,\n  'th': 1,\n  'thead': 1,\n  'time': 0,\n  'title': 280,\n  'tr': 1,\n  'track': 2,\n  'tt': 0,\n  'u': 0,\n  'ul': 0,\n  'var': 0,\n  'video': 0,\n  'wbr': 2\n};\nhtml4[ 'ELEMENTS' ] = html4.ELEMENTS;\nhtml4.ELEMENT_DOM_INTERFACES = {\n  'a': 'HTMLAnchorElement',\n  'abbr': 'HTMLElement',\n  'acronym': 'HTMLElement',\n  'address': 'HTMLElement',\n  'applet': 'HTMLAppletElement',\n  'area': 'HTMLAreaElement',\n  'article': 'HTMLElement',\n  'aside': 'HTMLElement',\n  'audio': 'HTMLAudioElement',\n  'b': 'HTMLElement',\n  'base': 'HTMLBaseElement',\n  'basefont': 'HTMLBaseFontElement',\n  'bdi': 'HTMLElement',\n  'bdo': 'HTMLElement',\n  'big': 'HTMLElement',\n  'blockquote': 'HTMLQuoteElement',\n  'body': 'HTMLBodyElement',\n  'br': 'HTMLBRElement',\n  'button': 'HTMLButtonElement',\n  'canvas': 'HTMLCanvasElement',\n  'caption': 'HTMLTableCaptionElement',\n  'center': 'HTMLElement',\n  'cite': 'HTMLElement',\n  'code': 'HTMLElement',\n  'col': 'HTMLTableColElement',\n  'colgroup': 'HTMLTableColElement',\n  'command': 'HTMLCommandElement',\n  'data': 'HTMLElement',\n  'datalist': 'HTMLDataListElement',\n  'dd': 'HTMLElement',\n  'del': 'HTMLModElement',\n  'details': 'HTMLDetailsElement',\n  'dfn': 'HTMLElement',\n  'dialog': 'HTMLDialogElement',\n  'dir': 'HTMLDirectoryElement',\n  'div': 'HTMLDivElement',\n  'dl': 'HTMLDListElement',\n  'dt': 'HTMLElement',\n  'em': 'HTMLElement',\n  'fieldset': 'HTMLFieldSetElement',\n  'figcaption': 'HTMLElement',\n  'figure': 'HTMLElement',\n  'font': 'HTMLFontElement',\n  'footer': 'HTMLElement',\n  'form': 'HTMLFormElement',\n  'frame': 'HTMLFrameElement',\n  'frameset': 'HTMLFrameSetElement',\n  'h1': 'HTMLHeadingElement',\n  'h2': 'HTMLHeadingElement',\n  'h3': 'HTMLHeadingElement',\n  'h4': 'HTMLHeadingElement',\n  'h5': 'HTMLHeadingElement',\n  'h6': 'HTMLHeadingElement',\n  'head': 'HTMLHeadElement',\n  'header': 'HTMLElement',\n  'hgroup': 'HTMLElement',\n  'hr': 'HTMLHRElement',\n  'html': 'HTMLHtmlElement',\n  'i': 'HTMLElement',\n  'iframe': 'HTMLIFrameElement',\n  'img': 'HTMLImageElement',\n  'input': 'HTMLInputElement',\n  'ins': 'HTMLModElement',\n  'isindex': 'HTMLUnknownElement',\n  'kbd': 'HTMLElement',\n  'keygen': 'HTMLKeygenElement',\n  'label': 'HTMLLabelElement',\n  'legend': 'HTMLLegendElement',\n  'li': 'HTMLLIElement',\n  'link': 'HTMLLinkElement',\n  'map': 'HTMLMapElement',\n  'mark': 'HTMLElement',\n  'menu': 'HTMLMenuElement',\n  'meta': 'HTMLMetaElement',\n  'meter': 'HTMLMeterElement',\n  'nav': 'HTMLElement',\n  'nobr': 'HTMLElement',\n  'noembed': 'HTMLElement',\n  'noframes': 'HTMLElement',\n  'noscript': 'HTMLElement',\n  'object': 'HTMLObjectElement',\n  'ol': 'HTMLOListElement',\n  'optgroup': 'HTMLOptGroupElement',\n  'option': 'HTMLOptionElement',\n  'output': 'HTMLOutputElement',\n  'p': 'HTMLParagraphElement',\n  'param': 'HTMLParamElement',\n  'pre': 'HTMLPreElement',\n  'progress': 'HTMLProgressElement',\n  'q': 'HTMLQuoteElement',\n  's': 'HTMLElement',\n  'samp': 'HTMLElement',\n  'script': 'HTMLScriptElement',\n  'section': 'HTMLElement',\n  'select': 'HTMLSelectElement',\n  'small': 'HTMLElement',\n  'source': 'HTMLSourceElement',\n  'span': 'HTMLSpanElement',\n  'strike': 'HTMLElement',\n  'strong': 'HTMLElement',\n  'style': 'HTMLStyleElement',\n  'sub': 'HTMLElement',\n  'summary': 'HTMLElement',\n  'sup': 'HTMLElement',\n  'table': 'HTMLTableElement',\n  'tbody': 'HTMLTableSectionElement',\n  'td': 'HTMLTableDataCellElement',\n  'textarea': 'HTMLTextAreaElement',\n  'tfoot': 'HTMLTableSectionElement',\n  'th': 'HTMLTableHeaderCellElement',\n  'thead': 'HTMLTableSectionElement',\n  'time': 'HTMLTimeElement',\n  'title': 'HTMLTitleElement',\n  'tr': 'HTMLTableRowElement',\n  'track': 'HTMLTrackElement',\n  'tt': 'HTMLElement',\n  'u': 'HTMLElement',\n  'ul': 'HTMLUListElement',\n  'var': 'HTMLElement',\n  'video': 'HTMLVideoElement',\n  'wbr': 'HTMLElement'\n};\nhtml4[ 'ELEMENT_DOM_INTERFACES' ] = html4.ELEMENT_DOM_INTERFACES;\nhtml4.ueffects = {\n  'NOT_LOADED': 0,\n  'SAME_DOCUMENT': 1,\n  'NEW_DOCUMENT': 2\n};\nhtml4[ 'ueffects' ] = html4.ueffects;\nhtml4.URIEFFECTS = {\n  'a::href': 2,\n  'area::href': 2,\n  'blockquote::cite': 0,\n  'command::icon': 1,\n  'del::cite': 0,\n  'form::action': 2,\n  'img::src': 1,\n  'input::src': 1,\n  'ins::cite': 0,\n  'q::cite': 0,\n  'video::poster': 1\n};\nhtml4[ 'URIEFFECTS' ] = html4.URIEFFECTS;\nhtml4.ltypes = {\n  'UNSANDBOXED': 2,\n  'SANDBOXED': 1,\n  'DATA': 0\n};\nhtml4[ 'ltypes' ] = html4.ltypes;\nhtml4.LOADERTYPES = {\n  'a::href': 2,\n  'area::href': 2,\n  'blockquote::cite': 2,\n  'command::icon': 1,\n  'del::cite': 2,\n  'form::action': 2,\n  'img::src': 1,\n  'input::src': 1,\n  'ins::cite': 2,\n  'q::cite': 2,\n  'video::poster': 1\n};\nhtml4[ 'LOADERTYPES' ] = html4.LOADERTYPES;\n\n// Copyright (C) 2006 Google Inc.\n//\n// Licensed under the Apache License, Version 2.0 (the \"License\");\n// you may not use this file except in compliance with the License.\n// You may obtain a copy of the License at\n//\n//      http://www.apache.org/licenses/LICENSE-2.0\n//\n// Unless required by applicable law or agreed to in writing, software\n// distributed under the License is distributed on an \"AS IS\" BASIS,\n// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n// See the License for the specific language governing permissions and\n// limitations under the License.\n\n/**\n * @fileoverview\n * An HTML sanitizer that can satisfy a variety of security policies.\n *\n * <p>\n * The HTML sanitizer is built around a SAX parser and HTML element and\n * attributes schemas.\n *\n * If the cssparser is loaded, inline styles are sanitized using the\n * css property and value schemas.  Else they are remove during\n * sanitization.\n *\n * If it exists, uses parseCssDeclarations, sanitizeCssProperty,  cssSchema\n *\n * @author mikesamuel@gmail.com\n * @author jasvir@gmail.com\n * \\@requires html4, URI\n * \\@overrides window\n * \\@provides html, html_sanitize\n */\n\n// The Turkish i seems to be a non-issue, but abort in case it is.\nif ('I'.toLowerCase() !== 'i') { throw 'I/i problem'; }\n\n/**\n * \\@namespace\n */\nvar html = (function(html4) {\n\n  // For closure compiler\n  var parseCssDeclarations, sanitizeCssProperty, cssSchema;\n  if ('undefined' !== typeof window) {\n    parseCssDeclarations = window['parseCssDeclarations'];\n    sanitizeCssProperty = window['sanitizeCssProperty'];\n    cssSchema = window['cssSchema'];\n  }\n\n  // The keys of this object must be 'quoted' or JSCompiler will mangle them!\n  // This is a partial list -- lookupEntity() uses the host browser's parser\n  // (when available) to implement full entity lookup.\n  // Note that entities are in general case-sensitive; the uppercase ones are\n  // explicitly defined by HTML5 (presumably as compatibility).\n  var ENTITIES = {\n    'lt': '<',\n    'LT': '<',\n    'gt': '>',\n    'GT': '>',\n    'amp': '&',\n    'AMP': '&',\n    'quot': '\"',\n    'apos': '\\'',\n    'nbsp': '\\u00A0'\n  };\n\n  // Patterns for types of entity/character reference names.\n  var decimalEscapeRe = /^#(\\d+)$/;\n  var hexEscapeRe = /^#x([0-9A-Fa-f]+)$/;\n  // contains every entity per http://www.w3.org/TR/2011/WD-html5-20110113/named-character-references.html\n  var safeEntityNameRe = /^[A-Za-z][A-za-z0-9]+$/;\n  // Used as a hook to invoke the browser's entity parsing. <textarea> is used\n  // because its content is parsed for entities but not tags.\n  // TODO(kpreid): This retrieval is a kludge and leads to silent loss of\n  // functionality if the document isn't available.\n  var entityLookupElement =\n      ('undefined' !== typeof window && window['document'])\n          ? window['document'].createElement('textarea') : null;\n  /**\n   * Decodes an HTML entity.\n   *\n   * {\\@updoc\n   * $ lookupEntity('lt')\n   * # '<'\n   * $ lookupEntity('GT')\n   * # '>'\n   * $ lookupEntity('amp')\n   * # '&'\n   * $ lookupEntity('nbsp')\n   * # '\\xA0'\n   * $ lookupEntity('apos')\n   * # \"'\"\n   * $ lookupEntity('quot')\n   * # '\"'\n   * $ lookupEntity('#xa')\n   * # '\\n'\n   * $ lookupEntity('#10')\n   * # '\\n'\n   * $ lookupEntity('#x0a')\n   * # '\\n'\n   * $ lookupEntity('#010')\n   * # '\\n'\n   * $ lookupEntity('#x00A')\n   * # '\\n'\n   * $ lookupEntity('Pi')      // Known failure\n   * # '\\u03A0'\n   * $ lookupEntity('pi')      // Known failure\n   * # '\\u03C0'\n   * }\n   *\n   * @param {string} name the content between the '&' and the ';'.\n   * @return {string} a single unicode code-point as a string.\n   */\n  function lookupEntity(name) {\n    // TODO: entity lookup as specified by HTML5 actually depends on the\n    // presence of the \";\".\n    if (ENTITIES.hasOwnProperty(name)) { return ENTITIES[name]; }\n    var m = name.match(decimalEscapeRe);\n    if (m) {\n      return String.fromCharCode(parseInt(m[1], 10));\n    } else if (!!(m = name.match(hexEscapeRe))) {\n      return String.fromCharCode(parseInt(m[1], 16));\n    } else if (entityLookupElement && safeEntityNameRe.test(name)) {\n      entityLookupElement.innerHTML = '&' + name + ';';\n      var text = entityLookupElement.textContent;\n      ENTITIES[name] = text;\n      return text;\n    } else {\n      return '&' + name + ';';\n    }\n  }\n\n  function decodeOneEntity(_, name) {\n    return lookupEntity(name);\n  }\n\n  var nulRe = /\\0/g;\n  function stripNULs(s) {\n    return s.replace(nulRe, '');\n  }\n\n  var ENTITY_RE_1 = /&(#[0-9]+|#[xX][0-9A-Fa-f]+|\\w+);/g;\n  var ENTITY_RE_2 = /^(#[0-9]+|#[xX][0-9A-Fa-f]+|\\w+);/;\n  /**\n   * The plain text of a chunk of HTML CDATA which possibly containing.\n   *\n   * {\\@updoc\n   * $ unescapeEntities('')\n   * # ''\n   * $ unescapeEntities('hello World!')\n   * # 'hello World!'\n   * $ unescapeEntities('1 &lt; 2 &amp;&AMP; 4 &gt; 3&#10;')\n   * # '1 < 2 && 4 > 3\\n'\n   * $ unescapeEntities('&lt;&lt <- unfinished entity&gt;')\n   * # '<&lt <- unfinished entity>'\n   * $ unescapeEntities('/foo?bar=baz&copy=true')  // & often unescaped in URLS\n   * # '/foo?bar=baz&copy=true'\n   * $ unescapeEntities('pi=&pi;&#x3c0;, Pi=&Pi;\\u03A0') // FIXME: known failure\n   * # 'pi=\\u03C0\\u03c0, Pi=\\u03A0\\u03A0'\n   * }\n   *\n   * @param {string} s a chunk of HTML CDATA.  It must not start or end inside\n   *     an HTML entity.\n   */\n  function unescapeEntities(s) {\n    return s.replace(ENTITY_RE_1, decodeOneEntity);\n  }\n\n  var ampRe = /&/g;\n  var looseAmpRe = /&([^a-z#]|#(?:[^0-9x]|x(?:[^0-9a-f]|$)|$)|$)/gi;\n  var ltRe = /[<]/g;\n  var gtRe = />/g;\n  var quotRe = /\\\"/g;\n\n  /**\n   * Escapes HTML special characters in attribute values.\n   *\n   * {\\@updoc\n   * $ escapeAttrib('')\n   * # ''\n   * $ escapeAttrib('\"<<&==&>>\"')  // Do not just escape the first occurrence.\n   * # '&#34;&lt;&lt;&amp;&#61;&#61;&amp;&gt;&gt;&#34;'\n   * $ escapeAttrib('Hello <World>!')\n   * # 'Hello &lt;World&gt;!'\n   * }\n   */\n  function escapeAttrib(s) {\n    return ('' + s).replace(ampRe, '&amp;').replace(ltRe, '&lt;')\n        .replace(gtRe, '&gt;').replace(quotRe, '&#34;');\n  }\n\n  /**\n   * Escape entities in RCDATA that can be escaped without changing the meaning.\n   * {\\@updoc\n   * $ normalizeRCData('1 < 2 &&amp; 3 > 4 &amp;& 5 &lt; 7&8')\n   * # '1 &lt; 2 &amp;&amp; 3 &gt; 4 &amp;&amp; 5 &lt; 7&amp;8'\n   * }\n   */\n  function normalizeRCData(rcdata) {\n    return rcdata\n        .replace(looseAmpRe, '&amp;$1')\n        .replace(ltRe, '&lt;')\n        .replace(gtRe, '&gt;');\n  }\n\n  // TODO(felix8a): validate sanitizer regexs against the HTML5 grammar at\n  // http://www.whatwg.org/specs/web-apps/current-work/multipage/syntax.html\n  // http://www.whatwg.org/specs/web-apps/current-work/multipage/parsing.html\n  // http://www.whatwg.org/specs/web-apps/current-work/multipage/tokenization.html\n  // http://www.whatwg.org/specs/web-apps/current-work/multipage/tree-construction.html\n\n  // We initially split input so that potentially meaningful characters\n  // like '<' and '>' are separate tokens, using a fast dumb process that\n  // ignores quoting.  Then we walk that token stream, and when we see a\n  // '<' that's the start of a tag, we use ATTR_RE to extract tag\n  // attributes from the next token.  That token will never have a '>'\n  // character.  However, it might have an unbalanced quote character, and\n  // when we see that, we combine additional tokens to balance the quote.\n\n  var ATTR_RE = new RegExp(\n    '^\\\\s*' +\n    '([-.:\\\\w]+)' +             // 1 = Attribute name\n    '(?:' + (\n      '\\\\s*(=)\\\\s*' +           // 2 = Is there a value?\n      '(' + (                   // 3 = Attribute value\n        // TODO(felix8a): maybe use backref to match quotes\n        '(\\\")[^\\\"]*(\\\"|$)' +    // 4, 5 = Double-quoted string\n        '|' +\n        '(\\')[^\\']*(\\'|$)' +    // 6, 7 = Single-quoted string\n        '|' +\n        // Positive lookahead to prevent interpretation of\n        // <foo a= b=c> as <foo a='b=c'>\n        // TODO(felix8a): might be able to drop this case\n        '(?=[a-z][-\\\\w]*\\\\s*=)' +\n        '|' +\n        // Unquoted value that isn't an attribute name\n        // (since we didn't match the positive lookahead above)\n        '[^\\\"\\'\\\\s]*' ) +\n      ')' ) +\n    ')?',\n    'i');\n\n  // false on IE<=8, true on most other browsers\n  var splitWillCapture = ('a,b'.split(/(,)/).length === 3);\n\n  // bitmask for tags with special parsing, like <script> and <textarea>\n  var EFLAGS_TEXT = html4.eflags['CDATA'] | html4.eflags['RCDATA'];\n\n  /**\n   * Given a SAX-like event handler, produce a function that feeds those\n   * events and a parameter to the event handler.\n   *\n   * The event handler has the form:{@code\n   * {\n   *   // Name is an upper-case HTML tag name.  Attribs is an array of\n   *   // alternating upper-case attribute names, and attribute values.  The\n   *   // attribs array is reused by the parser.  Param is the value passed to\n   *   // the saxParser.\n   *   startTag: function (name, attribs, param) { ... },\n   *   endTag:   function (name, param) { ... },\n   *   pcdata:   function (text, param) { ... },\n   *   rcdata:   function (text, param) { ... },\n   *   cdata:    function (text, param) { ... },\n   *   startDoc: function (param) { ... },\n   *   endDoc:   function (param) { ... }\n   * }}\n   *\n   * @param {Object} handler a record containing event handlers.\n   * @return {function(string, Object)} A function that takes a chunk of HTML\n   *     and a parameter.  The parameter is passed on to the handler methods.\n   */\n  function makeSaxParser(handler) {\n    // Accept quoted or unquoted keys (Closure compat)\n    var hcopy = {\n      cdata: handler.cdata || handler['cdata'],\n      comment: handler.comment || handler['comment'],\n      endDoc: handler.endDoc || handler['endDoc'],\n      endTag: handler.endTag || handler['endTag'],\n      pcdata: handler.pcdata || handler['pcdata'],\n      rcdata: handler.rcdata || handler['rcdata'],\n      startDoc: handler.startDoc || handler['startDoc'],\n      startTag: handler.startTag || handler['startTag']\n    };\n    return function(htmlText, param) {\n      return parse(htmlText, hcopy, param);\n    };\n  }\n\n  // Parsing strategy is to split input into parts that might be lexically\n  // meaningful (every \">\" becomes a separate part), and then recombine\n  // parts if we discover they're in a different context.\n\n  // TODO(felix8a): Significant performance regressions from -legacy,\n  // tested on\n  //    Chrome 18.0\n  //    Firefox 11.0\n  //    IE 6, 7, 8, 9\n  //    Opera 11.61\n  //    Safari 5.1.3\n  // Many of these are unusual patterns that are linearly slower and still\n  // pretty fast (eg 1ms to 5ms), so not necessarily worth fixing.\n\n  // TODO(felix8a): \"<script> && && && ... <\\/script>\" is slower on all\n  // browsers.  The hotspot is htmlSplit.\n\n  // TODO(felix8a): \"<p title='>>>>...'><\\/p>\" is slower on all browsers.\n  // This is partly htmlSplit, but the hotspot is parseTagAndAttrs.\n\n  // TODO(felix8a): \"<a><\\/a><a><\\/a>...\" is slower on IE9.\n  // \"<a>1<\\/a><a>1<\\/a>...\" is faster, \"<a><\\/a>2<a><\\/a>2...\" is faster.\n\n  // TODO(felix8a): \"<p<p<p...\" is slower on IE[6-8]\n\n  var continuationMarker = {};\n  function parse(htmlText, handler, param) {\n    var m, p, tagName;\n    var parts = htmlSplit(htmlText);\n    var state = {\n      noMoreGT: false,\n      noMoreEndComments: false\n    };\n    parseCPS(handler, parts, 0, state, param);\n  }\n\n  function continuationMaker(h, parts, initial, state, param) {\n    return function () {\n      parseCPS(h, parts, initial, state, param);\n    };\n  }\n\n  function parseCPS(h, parts, initial, state, param) {\n    try {\n      if (h.startDoc && initial == 0) { h.startDoc(param); }\n      var m, p, tagName;\n      for (var pos = initial, end = parts.length; pos < end;) {\n        var current = parts[pos++];\n        var next = parts[pos];\n        switch (current) {\n        case '&':\n          if (ENTITY_RE_2.test(next)) {\n            if (h.pcdata) {\n              h.pcdata('&' + next, param, continuationMarker,\n                continuationMaker(h, parts, pos, state, param));\n            }\n            pos++;\n          } else {\n            if (h.pcdata) { h.pcdata(\"&amp;\", param, continuationMarker,\n                continuationMaker(h, parts, pos, state, param));\n            }\n          }\n          break;\n        case '<\\/':\n          if (m = /^([-\\w:]+)[^\\'\\\"]*/.exec(next)) {\n            if (m[0].length === next.length && parts[pos + 1] === '>') {\n              // fast case, no attribute parsing needed\n              pos += 2;\n              tagName = m[1].toLowerCase();\n              if (h.endTag) {\n                h.endTag(tagName, param, continuationMarker,\n                  continuationMaker(h, parts, pos, state, param));\n              }\n            } else {\n              // slow case, need to parse attributes\n              // TODO(felix8a): do we really care about misparsing this?\n              pos = parseEndTag(\n                parts, pos, h, param, continuationMarker, state);\n            }\n          } else {\n            if (h.pcdata) {\n              h.pcdata('&lt;/', param, continuationMarker,\n                continuationMaker(h, parts, pos, state, param));\n            }\n          }\n          break;\n        case '<':\n          if (m = /^([-\\w:]+)\\s*\\/?/.exec(next)) {\n            if (m[0].length === next.length && parts[pos + 1] === '>') {\n              // fast case, no attribute parsing needed\n              pos += 2;\n              tagName = m[1].toLowerCase();\n              if (h.startTag) {\n                h.startTag(tagName, [], param, continuationMarker,\n                  continuationMaker(h, parts, pos, state, param));\n              }\n              // tags like <script> and <textarea> have special parsing\n              var eflags = html4.ELEMENTS[tagName];\n              if (eflags & EFLAGS_TEXT) {\n                var tag = { name: tagName, next: pos, eflags: eflags };\n                pos = parseText(\n                  parts, tag, h, param, continuationMarker, state);\n              }\n            } else {\n              // slow case, need to parse attributes\n              pos = parseStartTag(\n                parts, pos, h, param, continuationMarker, state);\n            }\n          } else {\n            if (h.pcdata) {\n              h.pcdata('&lt;', param, continuationMarker,\n                continuationMaker(h, parts, pos, state, param));\n            }\n          }\n          break;\n        case '<\\!--':\n          // The pathological case is n copies of '<\\!--' without '-->', and\n          // repeated failure to find '-->' is quadratic.  We avoid that by\n          // remembering when search for '-->' fails.\n          if (!state.noMoreEndComments) {\n            // A comment <\\!--x--> is split into three tokens:\n            //   '<\\!--', 'x--', '>'\n            // We want to find the next '>' token that has a preceding '--'.\n            // pos is at the 'x--'.\n            for (p = pos + 1; p < end; p++) {\n              if (parts[p] === '>' && /--$/.test(parts[p - 1])) { break; }\n            }\n            if (p < end) {\n              if (h.comment) {\n                var comment = parts.slice(pos, p).join('');\n                h.comment(\n                  comment.substr(0, comment.length - 2), param,\n                  continuationMarker,\n                  continuationMaker(h, parts, p + 1, state, param));\n              }\n              pos = p + 1;\n            } else {\n              state.noMoreEndComments = true;\n            }\n          }\n          if (state.noMoreEndComments) {\n            if (h.pcdata) {\n              h.pcdata('&lt;!--', param, continuationMarker,\n                continuationMaker(h, parts, pos, state, param));\n            }\n          }\n          break;\n        case '<\\!':\n          if (!/^\\w/.test(next)) {\n            if (h.pcdata) {\n              h.pcdata('&lt;!', param, continuationMarker,\n                continuationMaker(h, parts, pos, state, param));\n            }\n          } else {\n            // similar to noMoreEndComment logic\n            if (!state.noMoreGT) {\n              for (p = pos + 1; p < end; p++) {\n                if (parts[p] === '>') { break; }\n              }\n              if (p < end) {\n                pos = p + 1;\n              } else {\n                state.noMoreGT = true;\n              }\n            }\n            if (state.noMoreGT) {\n              if (h.pcdata) {\n                h.pcdata('&lt;!', param, continuationMarker,\n                  continuationMaker(h, parts, pos, state, param));\n              }\n            }\n          }\n          break;\n        case '<?':\n          // similar to noMoreEndComment logic\n          if (!state.noMoreGT) {\n            for (p = pos + 1; p < end; p++) {\n              if (parts[p] === '>') { break; }\n            }\n            if (p < end) {\n              pos = p + 1;\n            } else {\n              state.noMoreGT = true;\n            }\n          }\n          if (state.noMoreGT) {\n            if (h.pcdata) {\n              h.pcdata('&lt;?', param, continuationMarker,\n                continuationMaker(h, parts, pos, state, param));\n            }\n          }\n          break;\n        case '>':\n          if (h.pcdata) {\n            h.pcdata(\"&gt;\", param, continuationMarker,\n              continuationMaker(h, parts, pos, state, param));\n          }\n          break;\n        case '':\n          break;\n        default:\n          if (h.pcdata) {\n            h.pcdata(current, param, continuationMarker,\n              continuationMaker(h, parts, pos, state, param));\n          }\n          break;\n        }\n      }\n      if (h.endDoc) { h.endDoc(param); }\n    } catch (e) {\n      if (e !== continuationMarker) { throw e; }\n    }\n  }\n\n  // Split str into parts for the html parser.\n  function htmlSplit(str) {\n    // can't hoist this out of the function because of the re.exec loop.\n    var re = /(<\\/|<\\!--|<[!?]|[&<>])/g;\n    str += '';\n    if (splitWillCapture) {\n      return str.split(re);\n    } else {\n      var parts = [];\n      var lastPos = 0;\n      var m;\n      while ((m = re.exec(str)) !== null) {\n        parts.push(str.substring(lastPos, m.index));\n        parts.push(m[0]);\n        lastPos = m.index + m[0].length;\n      }\n      parts.push(str.substring(lastPos));\n      return parts;\n    }\n  }\n\n  function parseEndTag(parts, pos, h, param, continuationMarker, state) {\n    var tag = parseTagAndAttrs(parts, pos);\n    // drop unclosed tags\n    if (!tag) { return parts.length; }\n    if (h.endTag) {\n      h.endTag(tag.name, param, continuationMarker,\n        continuationMaker(h, parts, pos, state, param));\n    }\n    return tag.next;\n  }\n\n  function parseStartTag(parts, pos, h, param, continuationMarker, state) {\n    var tag = parseTagAndAttrs(parts, pos);\n    // drop unclosed tags\n    if (!tag) { return parts.length; }\n    if (h.startTag) {\n      h.startTag(tag.name, tag.attrs, param, continuationMarker,\n        continuationMaker(h, parts, tag.next, state, param));\n    }\n    // tags like <script> and <textarea> have special parsing\n    if (tag.eflags & EFLAGS_TEXT) {\n      return parseText(parts, tag, h, param, continuationMarker, state);\n    } else {\n      return tag.next;\n    }\n  }\n\n  var endTagRe = {};\n\n  // Tags like <script> and <textarea> are flagged as CDATA or RCDATA,\n  // which means everything is text until we see the correct closing tag.\n  function parseText(parts, tag, h, param, continuationMarker, state) {\n    var end = parts.length;\n    if (!endTagRe.hasOwnProperty(tag.name)) {\n      endTagRe[tag.name] = new RegExp('^' + tag.name + '(?:[\\\\s\\\\/]|$)', 'i');\n    }\n    var re = endTagRe[tag.name];\n    var first = tag.next;\n    var p = tag.next + 1;\n    for (; p < end; p++) {\n      if (parts[p - 1] === '<\\/' && re.test(parts[p])) { break; }\n    }\n    if (p < end) { p -= 1; }\n    var buf = parts.slice(first, p).join('');\n    if (tag.eflags & html4.eflags['CDATA']) {\n      if (h.cdata) {\n        h.cdata(buf, param, continuationMarker,\n          continuationMaker(h, parts, p, state, param));\n      }\n    } else if (tag.eflags & html4.eflags['RCDATA']) {\n      if (h.rcdata) {\n        h.rcdata(normalizeRCData(buf), param, continuationMarker,\n          continuationMaker(h, parts, p, state, param));\n      }\n    } else {\n      throw new Error('bug');\n    }\n    return p;\n  }\n\n  // at this point, parts[pos-1] is either \"<\" or \"<\\/\".\n  function parseTagAndAttrs(parts, pos) {\n    var m = /^([-\\w:]+)/.exec(parts[pos]);\n    var tag = {};\n    tag.name = m[1].toLowerCase();\n    tag.eflags = html4.ELEMENTS[tag.name];\n    var buf = parts[pos].substr(m[0].length);\n    // Find the next '>'.  We optimistically assume this '>' is not in a\n    // quoted context, and further down we fix things up if it turns out to\n    // be quoted.\n    var p = pos + 1;\n    var end = parts.length;\n    for (; p < end; p++) {\n      if (parts[p] === '>') { break; }\n      buf += parts[p];\n    }\n    if (end <= p) { return void 0; }\n    var attrs = [];\n    while (buf !== '') {\n      m = ATTR_RE.exec(buf);\n      if (!m) {\n        // No attribute found: skip garbage\n        buf = buf.replace(/^[\\s\\S][^a-z\\s]*/, '');\n\n      } else if ((m[4] && !m[5]) || (m[6] && !m[7])) {\n        // Unterminated quote: slurp to the next unquoted '>'\n        var quote = m[4] || m[6];\n        var sawQuote = false;\n        var abuf = [buf, parts[p++]];\n        for (; p < end; p++) {\n          if (sawQuote) {\n            if (parts[p] === '>') { break; }\n          } else if (0 <= parts[p].indexOf(quote)) {\n            sawQuote = true;\n          }\n          abuf.push(parts[p]);\n        }\n        // Slurp failed: lose the garbage\n        if (end <= p) { break; }\n        // Otherwise retry attribute parsing\n        buf = abuf.join('');\n        continue;\n\n      } else {\n        // We have an attribute\n        var aName = m[1].toLowerCase();\n        var aValue = m[2] ? decodeValue(m[3]) : '';\n        attrs.push(aName, aValue);\n        buf = buf.substr(m[0].length);\n      }\n    }\n    tag.attrs = attrs;\n    tag.next = p + 1;\n    return tag;\n  }\n\n  function decodeValue(v) {\n    var q = v.charCodeAt(0);\n    if (q === 0x22 || q === 0x27) { // \" or '\n      v = v.substr(1, v.length - 2);\n    }\n    return unescapeEntities(stripNULs(v));\n  }\n\n  /**\n   * Returns a function that strips unsafe tags and attributes from html.\n   * @param {function(string, Array.<string>): ?Array.<string>} tagPolicy\n   *     A function that takes (tagName, attribs[]), where tagName is a key in\n   *     html4.ELEMENTS and attribs is an array of alternating attribute names\n   *     and values.  It should return a record (as follows), or null to delete\n   *     the element.  It's okay for tagPolicy to modify the attribs array,\n   *     but the same array is reused, so it should not be held between calls.\n   *     Record keys:\n   *        attribs: (required) Sanitized attributes array.\n   *        tagName: Replacement tag name.\n   * @return {function(string, Array)} A function that sanitizes a string of\n   *     HTML and appends result strings to the second argument, an array.\n   */\n  function makeHtmlSanitizer(tagPolicy) {\n    var stack;\n    var ignoring;\n    var emit = function (text, out) {\n      if (!ignoring) { out.push(text); }\n    };\n    return makeSaxParser({\n      'startDoc': function(_) {\n        stack = [];\n        ignoring = false;\n      },\n      'startTag': function(tagNameOrig, attribs, out) {\n        if (ignoring) { return; }\n        if (!html4.ELEMENTS.hasOwnProperty(tagNameOrig)) { return; }\n        var eflagsOrig = html4.ELEMENTS[tagNameOrig];\n        if (eflagsOrig & html4.eflags['FOLDABLE']) {\n          return;\n        }\n\n        var decision = tagPolicy(tagNameOrig, attribs);\n        if (!decision) {\n          ignoring = !(eflagsOrig & html4.eflags['EMPTY']);\n          return;\n        } else if (typeof decision !== 'object') {\n          throw new Error('tagPolicy did not return object (old API?)');\n        }\n        if ('attribs' in decision) {\n          attribs = decision['attribs'];\n        } else {\n          throw new Error('tagPolicy gave no attribs');\n        }\n        var eflagsRep;\n        var tagNameRep;\n        if ('tagName' in decision) {\n          tagNameRep = decision['tagName'];\n          eflagsRep = html4.ELEMENTS[tagNameRep];\n        } else {\n          tagNameRep = tagNameOrig;\n          eflagsRep = eflagsOrig;\n        }\n        // TODO(mikesamuel): relying on tagPolicy not to insert unsafe\n        // attribute names.\n\n        // If this is an optional-end-tag element and either this element or its\n        // previous like sibling was rewritten, then insert a close tag to\n        // preserve structure.\n        if (eflagsOrig & html4.eflags['OPTIONAL_ENDTAG']) {\n          var onStack = stack[stack.length - 1];\n          if (onStack && onStack.orig === tagNameOrig &&\n              (onStack.rep !== tagNameRep || tagNameOrig !== tagNameRep)) {\n                out.push('<\\/', onStack.rep, '>');\n          }\n        }\n\n        if (!(eflagsOrig & html4.eflags['EMPTY'])) {\n          stack.push({orig: tagNameOrig, rep: tagNameRep});\n        }\n\n        out.push('<', tagNameRep);\n        for (var i = 0, n = attribs.length; i < n; i += 2) {\n          var attribName = attribs[i],\n              value = attribs[i + 1];\n          if (value !== null && value !== void 0) {\n            out.push(' ', attribName, '=\"', escapeAttrib(value), '\"');\n          }\n        }\n        out.push('>');\n\n        if ((eflagsOrig & html4.eflags['EMPTY'])\n            && !(eflagsRep & html4.eflags['EMPTY'])) {\n          // replacement is non-empty, synthesize end tag\n          out.push('<\\/', tagNameRep, '>');\n        }\n      },\n      'endTag': function(tagName, out) {\n        if (ignoring) {\n          ignoring = false;\n          return;\n        }\n        if (!html4.ELEMENTS.hasOwnProperty(tagName)) { return; }\n        var eflags = html4.ELEMENTS[tagName];\n        if (!(eflags & (html4.eflags['EMPTY'] | html4.eflags['FOLDABLE']))) {\n          var index;\n          if (eflags & html4.eflags['OPTIONAL_ENDTAG']) {\n            for (index = stack.length; --index >= 0;) {\n              var stackElOrigTag = stack[index].orig;\n              if (stackElOrigTag === tagName) { break; }\n              if (!(html4.ELEMENTS[stackElOrigTag] &\n                    html4.eflags['OPTIONAL_ENDTAG'])) {\n                // Don't pop non optional end tags looking for a match.\n                return;\n              }\n            }\n          } else {\n            for (index = stack.length; --index >= 0;) {\n              if (stack[index].orig === tagName) { break; }\n            }\n          }\n          if (index < 0) { return; }  // Not opened.\n          for (var i = stack.length; --i > index;) {\n            var stackElRepTag = stack[i].rep;\n            if (!(html4.ELEMENTS[stackElRepTag] &\n                  html4.eflags['OPTIONAL_ENDTAG'])) {\n              out.push('<\\/', stackElRepTag, '>');\n            }\n          }\n          if (index < stack.length) {\n            tagName = stack[index].rep;\n          }\n          stack.length = index;\n          out.push('<\\/', tagName, '>');\n        }\n      },\n      'pcdata': emit,\n      'rcdata': emit,\n      'cdata': emit,\n      'endDoc': function(out) {\n        for (; stack.length; stack.length--) {\n          out.push('<\\/', stack[stack.length - 1].rep, '>');\n        }\n      }\n    });\n  }\n\n  var ALLOWED_URI_SCHEMES = /^(?:https?|mailto|data)$/i;\n\n  function safeUri(uri, effect, ltype, hints, naiveUriRewriter) {\n    if (!naiveUriRewriter) { return null; }\n    try {\n      var parsed = URI.parse('' + uri);\n      if (parsed) {\n        if (!parsed.hasScheme() ||\n            ALLOWED_URI_SCHEMES.test(parsed.getScheme())) {\n          var safe = naiveUriRewriter(parsed, effect, ltype, hints);\n          return safe ? safe.toString() : null;\n        }\n      }\n    } catch (e) {\n      return null;\n    }\n    return null;\n  }\n\n  function log(logger, tagName, attribName, oldValue, newValue) {\n    if (!attribName) {\n      logger(tagName + \" removed\", {\n        change: \"removed\",\n        tagName: tagName\n      });\n    }\n    if (oldValue !== newValue) {\n      var changed = \"changed\";\n      if (oldValue && !newValue) {\n        changed = \"removed\";\n      } else if (!oldValue && newValue)  {\n        changed = \"added\";\n      }\n      logger(tagName + \".\" + attribName + \" \" + changed, {\n        change: changed,\n        tagName: tagName,\n        attribName: attribName,\n        oldValue: oldValue,\n        newValue: newValue\n      });\n    }\n  }\n\n  function lookupAttribute(map, tagName, attribName) {\n    var attribKey;\n    attribKey = tagName + '::' + attribName;\n    if (map.hasOwnProperty(attribKey)) {\n      return map[attribKey];\n    }\n    attribKey = '*::' + attribName;\n    if (map.hasOwnProperty(attribKey)) {\n      return map[attribKey];\n    }\n    return void 0;\n  }\n  function getAttributeType(tagName, attribName) {\n    return lookupAttribute(html4.ATTRIBS, tagName, attribName);\n  }\n  function getLoaderType(tagName, attribName) {\n    return lookupAttribute(html4.LOADERTYPES, tagName, attribName);\n  }\n  function getUriEffect(tagName, attribName) {\n    return lookupAttribute(html4.URIEFFECTS, tagName, attribName);\n  }\n\n  /**\n   * Sanitizes attributes on an HTML tag.\n   * @param {string} tagName An HTML tag name in lowercase.\n   * @param {Array.<?string>} attribs An array of alternating names and values.\n   * @param {?function(?string): ?string} opt_naiveUriRewriter A transform to\n   *     apply to URI attributes; it can return a new string value, or null to\n   *     delete the attribute.  If unspecified, URI attributes are deleted.\n   * @param {function(?string): ?string} opt_nmTokenPolicy A transform to apply\n   *     to attributes containing HTML names, element IDs, and space-separated\n   *     lists of classes; it can return a new string value, or null to delete\n   *     the attribute.  If unspecified, these attributes are kept unchanged.\n   * @return {Array.<?string>} The sanitized attributes as a list of alternating\n   *     names and values, where a null value means to omit the attribute.\n   */\n  function sanitizeAttribs(tagName, attribs,\n    opt_naiveUriRewriter, opt_nmTokenPolicy, opt_logger) {\n    // TODO(felix8a): it's obnoxious that domado duplicates much of this\n    // TODO(felix8a): maybe consistently enforce constraints like target=\n    for (var i = 0; i < attribs.length; i += 2) {\n      var attribName = attribs[i];\n      var value = attribs[i + 1];\n      var oldValue = value;\n      var atype = null, attribKey;\n      if ((attribKey = tagName + '::' + attribName,\n           html4.ATTRIBS.hasOwnProperty(attribKey)) ||\n          (attribKey = '*::' + attribName,\n           html4.ATTRIBS.hasOwnProperty(attribKey))) {\n        atype = html4.ATTRIBS[attribKey];\n      }\n      if (atype !== null) {\n        switch (atype) {\n          case html4.atype['NONE']: break;\n          case html4.atype['SCRIPT']:\n            value = null;\n            if (opt_logger) {\n              log(opt_logger, tagName, attribName, oldValue, value);\n            }\n            break;\n          case html4.atype['STYLE']:\n            if ('undefined' === typeof parseCssDeclarations) {\n              value = null;\n              if (opt_logger) {\n                log(opt_logger, tagName, attribName, oldValue, value);\n\t      }\n              break;\n            }\n            var sanitizedDeclarations = [];\n            parseCssDeclarations(\n                value,\n                {\n                  declaration: function (property, tokens) {\n                    var normProp = property.toLowerCase();\n                    var schema = cssSchema[normProp];\n                    if (!schema) {\n                      return;\n                    }\n                    sanitizeCssProperty(\n                        normProp, schema, tokens,\n                        opt_naiveUriRewriter\n                        ? function (url) {\n                            return safeUri(\n                                url, html4.ueffects.SAME_DOCUMENT,\n                                html4.ltypes.SANDBOXED,\n                                {\n                                  \"TYPE\": \"CSS\",\n                                  \"CSS_PROP\": normProp\n                                }, opt_naiveUriRewriter);\n                          }\n                        : null);\n                    sanitizedDeclarations.push(property + ': ' + tokens.join(' '));\n                  }\n                });\n            value = sanitizedDeclarations.length > 0 ?\n              sanitizedDeclarations.join(' ; ') : null;\n            if (opt_logger) {\n              log(opt_logger, tagName, attribName, oldValue, value);\n            }\n            break;\n          case html4.atype['ID']:\n          case html4.atype['IDREF']:\n          case html4.atype['IDREFS']:\n          case html4.atype['GLOBAL_NAME']:\n          case html4.atype['LOCAL_NAME']:\n          case html4.atype['CLASSES']:\n            value = opt_nmTokenPolicy ? opt_nmTokenPolicy(value) : value;\n            if (opt_logger) {\n              log(opt_logger, tagName, attribName, oldValue, value);\n            }\n            break;\n          case html4.atype['URI']:\n            value = safeUri(value,\n              getUriEffect(tagName, attribName),\n              getLoaderType(tagName, attribName),\n              {\n                \"TYPE\": \"MARKUP\",\n                \"XML_ATTR\": attribName,\n                \"XML_TAG\": tagName\n              }, opt_naiveUriRewriter);\n              if (opt_logger) {\n              log(opt_logger, tagName, attribName, oldValue, value);\n            }\n            break;\n          case html4.atype['URI_FRAGMENT']:\n            if (value && '#' === value.charAt(0)) {\n              value = value.substring(1);  // remove the leading '#'\n              value = opt_nmTokenPolicy ? opt_nmTokenPolicy(value) : value;\n              if (value !== null && value !== void 0) {\n                value = '#' + value;  // restore the leading '#'\n              }\n            } else {\n              value = null;\n            }\n            if (opt_logger) {\n              log(opt_logger, tagName, attribName, oldValue, value);\n            }\n            break;\n          default:\n            value = null;\n            if (opt_logger) {\n              log(opt_logger, tagName, attribName, oldValue, value);\n            }\n            break;\n        }\n      } else {\n        value = null;\n        if (opt_logger) {\n          log(opt_logger, tagName, attribName, oldValue, value);\n        }\n      }\n      attribs[i + 1] = value;\n    }\n    return attribs;\n  }\n\n  /**\n   * Creates a tag policy that omits all tags marked UNSAFE in html4-defs.js\n   * and applies the default attribute sanitizer with the supplied policy for\n   * URI attributes and NMTOKEN attributes.\n   * @param {?function(?string): ?string} opt_naiveUriRewriter A transform to\n   *     apply to URI attributes.  If not given, URI attributes are deleted.\n   * @param {function(?string): ?string} opt_nmTokenPolicy A transform to apply\n   *     to attributes containing HTML names, element IDs, and space-separated\n   *     lists of classes.  If not given, such attributes are left unchanged.\n   * @return {function(string, Array.<?string>)} A tagPolicy suitable for\n   *     passing to html.sanitize.\n   */\n  function makeTagPolicy(\n    opt_naiveUriRewriter, opt_nmTokenPolicy, opt_logger) {\n    return function(tagName, attribs) {\n      if (!(html4.ELEMENTS[tagName] & html4.eflags['UNSAFE'])) {\n        return {\n          'attribs': sanitizeAttribs(tagName, attribs,\n            opt_naiveUriRewriter, opt_nmTokenPolicy, opt_logger)\n        };\n      } else {\n        if (opt_logger) {\n          log(opt_logger, tagName, undefined, undefined, undefined);\n        }\n      }\n    };\n  }\n\n  /**\n   * Sanitizes HTML tags and attributes according to a given policy.\n   * @param {string} inputHtml The HTML to sanitize.\n   * @param {function(string, Array.<?string>)} tagPolicy A function that\n   *     decides which tags to accept and sanitizes their attributes (see\n   *     makeHtmlSanitizer above for details).\n   * @return {string} The sanitized HTML.\n   */\n  function sanitizeWithPolicy(inputHtml, tagPolicy) {\n    var outputArray = [];\n    makeHtmlSanitizer(tagPolicy)(inputHtml, outputArray);\n    return outputArray.join('');\n  }\n\n  /**\n   * Strips unsafe tags and attributes from HTML.\n   * @param {string} inputHtml The HTML to sanitize.\n   * @param {?function(?string): ?string} opt_naiveUriRewriter A transform to\n   *     apply to URI attributes.  If not given, URI attributes are deleted.\n   * @param {function(?string): ?string} opt_nmTokenPolicy A transform to apply\n   *     to attributes containing HTML names, element IDs, and space-separated\n   *     lists of classes.  If not given, such attributes are left unchanged.\n   */\n  function sanitize(inputHtml,\n    opt_naiveUriRewriter, opt_nmTokenPolicy, opt_logger) {\n    var tagPolicy = makeTagPolicy(\n      opt_naiveUriRewriter, opt_nmTokenPolicy, opt_logger);\n    return sanitizeWithPolicy(inputHtml, tagPolicy);\n  }\n\n  // Export both quoted and unquoted names for Closure linkage.\n  var html = {};\n  html.escapeAttrib = html['escapeAttrib'] = escapeAttrib;\n  html.makeHtmlSanitizer = html['makeHtmlSanitizer'] = makeHtmlSanitizer;\n  html.makeSaxParser = html['makeSaxParser'] = makeSaxParser;\n  html.makeTagPolicy = html['makeTagPolicy'] = makeTagPolicy;\n  html.normalizeRCData = html['normalizeRCData'] = normalizeRCData;\n  html.sanitize = html['sanitize'] = sanitize;\n  html.sanitizeAttribs = html['sanitizeAttribs'] = sanitizeAttribs;\n  html.sanitizeWithPolicy = html['sanitizeWithPolicy'] = sanitizeWithPolicy;\n  html.unescapeEntities = html['unescapeEntities'] = unescapeEntities;\n  return html;\n})(html4);\n\nvar html_sanitize = html['sanitize'];\n\n// Loosen restrictions of Caja's\n// html-sanitizer to allow for styling\nhtml4.ATTRIBS['*::style'] = 0;\nhtml4.ELEMENTS['style'] = 0;\nhtml4.ATTRIBS['a::target'] = 0;\nhtml4.ELEMENTS['video'] = 0;\nhtml4.ATTRIBS['video::src'] = 0;\nhtml4.ATTRIBS['video::poster'] = 0;\nhtml4.ATTRIBS['video::controls'] = 0;\nhtml4.ELEMENTS['audio'] = 0;\nhtml4.ATTRIBS['audio::src'] = 0;\nhtml4.ATTRIBS['video::autoplay'] = 0;\nhtml4.ATTRIBS['video::controls'] = 0;\n\nif (typeof module !== 'undefined') {\n    module.exports = html_sanitize;\n}\n","module.exports={\n  \"author\": \"Mapbox\",\n  \"name\": \"mapbox.js\",\n  \"description\": \"mapbox javascript api\",\n  \"version\": \"3.1.1\",\n  \"homepage\": \"http://mapbox.com/\",\n  \"repository\": {\n    \"type\": \"git\",\n    \"url\": \"git://github.com/mapbox/mapbox.js.git\"\n  },\n  \"main\": \"src/index.js\",\n  \"dependencies\": {\n    \"corslite\": \"0.0.6\",\n    \"isarray\": \"0.0.1\",\n    \"leaflet\": \"1.0.2\",\n    \"mustache\": \"2.2.1\",\n    \"sanitize-caja\": \"0.1.4\"\n  },\n  \"scripts\": {\n    \"test\": \"eslint --no-eslintrc -c .eslintrc src && phantomjs node_modules/mocha-phantomjs-core/mocha-phantomjs-core.js test/index.html\"\n  },\n  \"license\": \"BSD-3-Clause\",\n  \"devDependencies\": {\n    \"browserify\": \"^13.0.0\",\n    \"clean-css\": \"~2.0.7\",\n    \"cz-conventional-changelog\": \"1.2.0\",\n    \"eslint\": \"^0.23.0\",\n    \"expect.js\": \"0.3.1\",\n    \"happen\": \"0.1.3\",\n    \"leaflet-fullscreen\": \"0.0.4\",\n    \"leaflet-hash\": \"0.2.1\",\n    \"marked\": \"~0.3.0\",\n    \"minifyify\": \"^6.1.0\",\n    \"minimist\": \"0.0.5\",\n    \"mocha\": \"2.4.5\",\n    \"mocha-phantomjs-core\": \"2.0.1\",\n    \"phantomjs-prebuilt\": \"2.1.12\",\n    \"sinon\": \"1.10.2\"\n  },\n  \"optionalDependencies\": {},\n  \"engines\": {\n    \"node\": \"*\"\n  },\n  \"config\": {\n    \"commitizen\": {\n      \"path\": \"./node_modules/cz-conventional-changelog\"\n    }\n  }\n}\n","'use strict';\n\nmodule.exports = {\n    HTTP_URL: 'http://a.tiles.mapbox.com/v4',\n    HTTPS_URL: 'https://a.tiles.mapbox.com/v4',\n    FORCE_HTTPS: false,\n    REQUIRE_ACCESS_TOKEN: true\n};\n","'use strict';\n\nvar util = require('./util'),\n    format_url = require('./format_url'),\n    request = require('./request'),\n    marker = require('./marker'),\n    simplestyle = require('./simplestyle');\n\n// # featureLayer\n//\n// A layer of features, loaded from Mapbox or else. Adds the ability\n// to reset features, filter them, and load them from a GeoJSON URL.\nvar FeatureLayer = L.FeatureGroup.extend({\n    options: {\n        filter: function() { return true; },\n        sanitizer: require('sanitize-caja'),\n        style: simplestyle.style,\n        popupOptions: { closeButton: false }\n    },\n\n    initialize: function(_, options) {\n        L.setOptions(this, options);\n\n        this._layers = {};\n\n        if (typeof _ === 'string') {\n            util.idUrl(_, this);\n        // javascript object of TileJSON data\n        } else if (_ && typeof _ === 'object') {\n            this.setGeoJSON(_);\n        }\n    },\n\n    setGeoJSON: function(_) {\n        this._geojson = _;\n        this.clearLayers();\n        this._initialize(_);\n        return this;\n    },\n\n    getGeoJSON: function() {\n        return this._geojson;\n    },\n\n    loadURL: function(url) {\n        if (this._request && 'abort' in this._request) this._request.abort();\n        this._request = request(url, L.bind(function(err, json) {\n            this._request = null;\n            if (err && err.type !== 'abort') {\n                util.log('could not load features at ' + url);\n                this.fire('error', {error: err});\n            } else if (json) {\n                this.setGeoJSON(json);\n                this.fire('ready');\n            }\n        }, this));\n        return this;\n    },\n\n    loadID: function(id) {\n        return this.loadURL(format_url('/v4/' + id + '/features.json', this.options.accessToken));\n    },\n\n    setFilter: function(_) {\n        this.options.filter = _;\n        if (this._geojson) {\n            this.clearLayers();\n            this._initialize(this._geojson);\n        }\n        return this;\n    },\n\n    getFilter: function() {\n        return this.options.filter;\n    },\n\n    _initialize: function(json) {\n        var features = L.Util.isArray(json) ? json : json.features,\n            i, len;\n\n        if (features) {\n            for (i = 0, len = features.length; i < len; i++) {\n                // Only add this if geometry or geometries are set and not null\n                if (features[i].geometries || features[i].geometry || features[i].features) {\n                    this._initialize(features[i]);\n                }\n            }\n        } else if (this.options.filter(json)) {\n\n            var opts = {accessToken: this.options.accessToken},\n                pointToLayer = this.options.pointToLayer || function(feature, latlon) {\n                  return marker.style(feature, latlon, opts);\n                },\n                layer = L.GeoJSON.geometryToLayer(json, {\n                    pointToLayer: pointToLayer\n                }),\n                popupHtml = marker.createPopup(json, this.options.sanitizer),\n                style = this.options.style,\n                defaultStyle = style === simplestyle.style;\n\n            if (style && 'setStyle' in layer &&\n                // if the style method is the simplestyle default, then\n                // never style L.Circle or L.CircleMarker because\n                // simplestyle has no rules over them, only over geometry\n                // primitives directly from GeoJSON\n                (!(defaultStyle && (layer instanceof L.Circle ||\n                  layer instanceof L.CircleMarker)))) {\n                if (typeof style === 'function') {\n                    style = style(json);\n                }\n                layer.setStyle(style);\n            }\n\n            layer.feature = json;\n\n            if (popupHtml) {\n                layer.bindPopup(popupHtml, this.options.popupOptions);\n            }\n\n            this.addLayer(layer);\n        }\n    }\n});\n\nmodule.exports.FeatureLayer = FeatureLayer;\n\nmodule.exports.featureLayer = function(_, options) {\n    return new FeatureLayer(_, options);\n};\n","'use strict';\n\nvar Feedback = L.Class.extend({\n    includes: L.Mixin.Events,\n    data: {},\n    record: function(data) {\n        L.extend(this.data, data);\n        this.fire('change');\n    }\n});\n\nmodule.exports = new Feedback();\n","'use strict';\n\nvar config = require('./config'),\n    version = require('../package.json').version;\n\nmodule.exports = function(path, accessToken) {\n    accessToken = accessToken || L.mapbox.accessToken;\n\n    if (!accessToken && config.REQUIRE_ACCESS_TOKEN) {\n        throw new Error('An API access token is required to use Mapbox.js. ' +\n            'See https://www.mapbox.com/mapbox.js/api/v' + version + '/api-access-tokens/');\n    }\n\n    var url = (document.location.protocol === 'https:' || config.FORCE_HTTPS) ? config.HTTPS_URL : config.HTTP_URL;\n    url = url.replace(/\\/v4$/, '');\n    url += path;\n\n    if (config.REQUIRE_ACCESS_TOKEN) {\n        if (accessToken[0] === 's') {\n            throw new Error('Use a public access token (pk.*) with Mapbox.js, not a secret access token (sk.*). ' +\n                'See https://www.mapbox.com/mapbox.js/api/v' + version + '/api-access-tokens/');\n        }\n\n        url += url.indexOf('?') !== -1 ? '&access_token=' : '?access_token=';\n        url += accessToken;\n    }\n\n    return url;\n};\n\nmodule.exports.tileJSON = function(urlOrMapID, accessToken) {\n\n    if (urlOrMapID.indexOf('mapbox://styles') === 0) {\n        throw new Error('Styles created with Mapbox Studio need to be used with ' +\n            'L.mapbox.styleLayer, not L.mapbox.tileLayer');\n    }\n\n    if (urlOrMapID.indexOf('/') !== -1)\n        return urlOrMapID;\n\n    var url = module.exports('/v4/' + urlOrMapID + '.json', accessToken);\n\n    // TileJSON requests need a secure flag appended to their URLs so\n    // that the server knows to send SSL-ified resource references.\n    if (url.indexOf('https') === 0)\n        url += '&secure';\n\n    return url;\n};\n\n\nmodule.exports.style = function(styleURL, accessToken) {\n    if (styleURL.indexOf('mapbox://styles/') === -1) throw new Error('Incorrectly formatted Mapbox style at ' + styleURL);\n\n    var ownerIDStyle = styleURL.split('mapbox://styles/')[1];\n    var url = module.exports('/styles/v1/' + ownerIDStyle, accessToken)\n        .replace('http://', 'https://');\n\n    return url;\n};\n","'use strict';\n\nvar isArray = require('isarray'),\n    util = require('./util'),\n    format_url = require('./format_url'),\n    feedback = require('./feedback'),\n    request = require('./request');\n\n// Low-level geocoding interface - wraps specific API calls and their\n// return values.\nmodule.exports = function(url, options) {\n    if (!options) options = {};\n    var geocoder = {};\n\n    util.strict(url, 'string');\n\n    if (url.indexOf('/') === -1) {\n        url = format_url('/geocoding/v5/' + url + '/{query}.json', options.accessToken, 5);\n    }\n\n    function roundTo(latLng, precision) {\n        var mult = Math.pow(10, precision);\n        latLng.lat = Math.round(latLng.lat * mult) / mult;\n        latLng.lng = Math.round(latLng.lng * mult) / mult;\n        return latLng;\n    }\n\n    geocoder.getURL = function() {\n        return url;\n    };\n\n    geocoder.queryURL = function(_) {\n        var isObject = !(isArray(_) || typeof _ === 'string'),\n            query = isObject ? _.query : _;\n\n        if (isArray(query)) {\n            var parts = [];\n            for (var i = 0; i < query.length; i++) {\n                parts[i] = encodeURIComponent(query[i]);\n            }\n            query = parts.join(';');\n        } else {\n            query = encodeURIComponent(query);\n        }\n\n        feedback.record({ geocoding: query });\n\n        var url = L.Util.template(geocoder.getURL(), {query: query});\n\n        if (isObject) {\n            if (_.types) {\n                if (isArray(_.types)) {\n                    url += '&types=' + _.types.join();\n                } else {\n                    url += '&types=' + _.types;\n                }\n            }\n\n            if (_.country) {\n                if (isArray(_.country)) {\n                    url += '&country=' + _.country.join();\n                } else {\n                    url += '&country=' + _.country;\n                }\n            }\n\n            if (_.bbox) {\n                if (isArray(_.bbox)) {\n                    url += '&bbox=' + _.bbox.join();\n                } else {\n                    url += '&bbox=' + _.bbox;\n                }\n            }\n\n            if (_.proximity) {\n                var proximity = roundTo(L.latLng(_.proximity), 3);\n                url += '&proximity=' + proximity.lng + ',' + proximity.lat;\n            }\n\n            if (typeof _.autocomplete === 'boolean') {\n                url += '&autocomplete=' + _.autocomplete;\n            }\n        }\n\n        return url;\n    };\n\n    geocoder.query = function(_, callback) {\n        util.strict(callback, 'function');\n\n        request(geocoder.queryURL(_), function(err, json) {\n            if (json && (json.length || json.features)) {\n                var res = {\n                    results: json\n                };\n                if (json.features && json.features.length) {\n                    res.latlng = [\n                        json.features[0].center[1],\n                        json.features[0].center[0]];\n\n                    if (json.features[0].bbox) {\n                        res.bounds = json.features[0].bbox;\n                        res.lbounds = util.lbounds(res.bounds);\n                    }\n                }\n                callback(null, res);\n            } else callback(err || true);\n        });\n\n        return geocoder;\n    };\n\n    // a reverse geocode:\n    //\n    //  geocoder.reverseQuery([80, 20])\n    geocoder.reverseQuery = function(_, callback) {\n        var q = '';\n\n        // sort through different ways people represent lat and lon pairs\n        function normalize(x) {\n            var latLng;\n            if (x.lat !== undefined && x.lng !== undefined) {\n                latLng = L.latLng(x.lat, x.lng);\n            } else if (x.lat !== undefined && x.lon !== undefined) {\n                latLng = L.latLng(x.lat, x.lon);\n            } else {\n                latLng = L.latLng(x[1], x[0]);\n            }\n            latLng = roundTo(latLng, 5);\n            return latLng.lng + ',' + latLng.lat;\n        }\n\n        if (_.length && _[0].length) {\n            for (var i = 0, pts = []; i < _.length; i++) {\n                pts.push(normalize(_[i]));\n            }\n            q = pts.join(';');\n        } else {\n            q = normalize(_);\n        }\n\n        request(geocoder.queryURL(q), function(err, json) {\n            callback(err, json);\n        });\n\n        return geocoder;\n    };\n\n    return geocoder;\n};\n","'use strict';\n\nvar geocoder = require('./geocoder'),\n    util = require('./util');\n\nvar GeocoderControl = L.Control.extend({\n    includes: L.Mixin.Events,\n\n    options: {\n        proximity: true,\n        position: 'topleft',\n        pointZoom: 16,\n        keepOpen: false,\n        autocomplete: false,\n        queryOptions: {}\n    },\n\n    initialize: function(_, options) {\n        L.Util.setOptions(this, options);\n        this.setURL(_);\n        this._updateSubmit = L.bind(this._updateSubmit, this);\n        this._updateAutocomplete = L.bind(this._updateAutocomplete, this);\n        this._chooseResult = L.bind(this._chooseResult, this);\n    },\n\n    setURL: function(_) {\n        this.geocoder = geocoder(_, {\n            accessToken: this.options.accessToken\n        });\n        return this;\n    },\n\n    getURL: function() {\n        return this.geocoder.getURL();\n    },\n\n    setID: function(_) {\n        return this.setURL(_);\n    },\n\n    setTileJSON: function(_) {\n        return this.setURL(_.geocoder);\n    },\n\n    _toggle: function(e) {\n        if (e) L.DomEvent.stop(e);\n        if (L.DomUtil.hasClass(this._container, 'active')) {\n            L.DomUtil.removeClass(this._container, 'active');\n            this._results.innerHTML = '';\n            this._input.blur();\n        } else {\n            L.DomUtil.addClass(this._container, 'active');\n            this._input.focus();\n            this._input.select();\n        }\n    },\n\n    _closeIfOpen: function() {\n        if (L.DomUtil.hasClass(this._container, 'active') &&\n            !this.options.keepOpen) {\n            L.DomUtil.removeClass(this._container, 'active');\n            this._results.innerHTML = '';\n            this._input.blur();\n        }\n    },\n\n    onAdd: function(map) {\n\n        var container = L.DomUtil.create('div', 'leaflet-control-mapbox-geocoder leaflet-bar leaflet-control'),\n            link = L.DomUtil.create('a', 'leaflet-control-mapbox-geocoder-toggle mapbox-icon mapbox-icon-geocoder', container),\n            results = L.DomUtil.create('div', 'leaflet-control-mapbox-geocoder-results', container),\n            wrap = L.DomUtil.create('div', 'leaflet-control-mapbox-geocoder-wrap', container),\n            form = L.DomUtil.create('form', 'leaflet-control-mapbox-geocoder-form', wrap),\n            input = L.DomUtil.create('input', '', form);\n\n        link.href = '#';\n        link.innerHTML = '&nbsp;';\n\n        input.type = 'text';\n        input.setAttribute('placeholder', 'Search');\n\n        L.DomEvent.addListener(form, 'submit', this._geocode, this);\n        L.DomEvent.addListener(input, 'keyup', this._autocomplete, this);\n        L.DomEvent.disableClickPropagation(container);\n\n        this._map = map;\n        this._results = results;\n        this._input = input;\n        this._form = form;\n\n        if (this.options.keepOpen) {\n            L.DomUtil.addClass(container, 'active');\n        } else {\n            this._map.on('click', this._closeIfOpen, this);\n            L.DomEvent.addListener(link, 'click', this._toggle, this);\n        }\n\n        return container;\n    },\n\n    _updateSubmit: function(err, resp) {\n        L.DomUtil.removeClass(this._container, 'searching');\n        this._results.innerHTML = '';\n        if (err || !resp) {\n            this.fire('error', {error: err});\n        } else {\n            var features = [];\n            if (resp.results && resp.results.features) {\n                features = resp.results.features;\n            }\n            if (features.length === 1) {\n                this.fire('autoselect', { feature: features[0] });\n                this.fire('found', {results: resp.results});\n                this._chooseResult(features[0]);\n                this._closeIfOpen();\n            } else if (features.length > 1) {\n                this.fire('found', {results: resp.results});\n                this._displayResults(features);\n            } else {\n                this.fire('notfound');\n                this._displayResults(features);\n            }\n        }\n    },\n\n    _updateAutocomplete: function(err, resp) {\n        this._results.innerHTML = '';\n        if (err || !resp) {\n            this.fire('error', {error: err});\n        } else {\n            var features = [];\n            if (resp.results && resp.results.features) {\n                features = resp.results.features;\n            }\n            if (features.length) {\n                this.fire('found', {results: resp.results});\n            } else {\n                this.fire('notfound');\n            }\n            this._displayResults(features);\n        }\n    },\n\n    _displayResults: function(features) {\n        for (var i = 0, l = Math.min(features.length, 5); i < l; i++) {\n            var feature = features[i];\n            var name = feature.place_name;\n            if (!name.length) continue;\n\n            var r = L.DomUtil.create('a', '', this._results);\n            var text = ('innerText' in r) ? 'innerText' : 'textContent';\n            r[text] = name;\n            r.setAttribute('title', name);\n            r.href = '#';\n\n            (L.bind(function(feature) {\n                L.DomEvent.addListener(r, 'click', function(e) {\n                    this._chooseResult(feature);\n                    L.DomEvent.stop(e);\n                    this.fire('select', { feature: feature });\n                }, this);\n            }, this))(feature);\n        }\n        if (features.length > 5) {\n            var outof = L.DomUtil.create('span', '', this._results);\n            outof.innerHTML = 'Top 5 of ' + features.length + '  results';\n        }\n    },\n\n    _chooseResult: function(result) {\n        if (result.bbox) {\n            this._map.fitBounds(util.lbounds(result.bbox));\n        } else if (result.center) {\n            this._map.setView([result.center[1], result.center[0]], (this._map.getZoom() === undefined) ?\n                this.options.pointZoom :\n                Math.max(this._map.getZoom(), this.options.pointZoom));\n        }\n    },\n\n    _geocode: function(e) {\n        L.DomEvent.preventDefault(e);\n        if (this._input.value === '') return this._updateSubmit();\n        L.DomUtil.addClass(this._container, 'searching');\n        this.geocoder.query(L.Util.extend({\n            query: this._input.value,\n            proximity: this.options.proximity ? this._map.getCenter() : false\n        }, this.options.queryOptions), this._updateSubmit);\n    },\n\n    _autocomplete: function() {\n        if (!this.options.autocomplete) return;\n        if (this._input.value === '') return this._updateAutocomplete();\n        this.geocoder.query(L.Util.extend({\n            query: this._input.value,\n            proximity: this.options.proximity ? this._map.getCenter() : false\n        }, this.options.queryOptions), this._updateAutocomplete);\n    }\n});\n\nmodule.exports.GeocoderControl = GeocoderControl;\n\nmodule.exports.geocoderControl = function(_, options) {\n    return new GeocoderControl(_, options);\n};\n","'use strict';\n\nfunction utfDecode(c) {\n    if (c >= 93) c--;\n    if (c >= 35) c--;\n    return c - 32;\n}\n\nmodule.exports = function(data) {\n    return function(x, y) {\n        if (!data) return;\n        var idx = utfDecode(data.grid[y].charCodeAt(x)),\n            key = data.keys[idx];\n        return data.data[key];\n    };\n};\n","'use strict';\n\nvar util = require('./util'),\n    Mustache = require('mustache');\n\nvar GridControl = L.Control.extend({\n\n    options: {\n        pinnable: true,\n        follow: false,\n        sanitizer: require('sanitize-caja'),\n        touchTeaser: true,\n        location: true\n    },\n\n    _currentContent: '',\n\n    // pinned means that this control is on a feature and the user has likely\n    // clicked. pinned will not become false unless the user clicks off\n    // of the feature onto another or clicks x\n    _pinned: false,\n\n    initialize: function(_, options) {\n        L.Util.setOptions(this, options);\n        util.strict_instance(_, L.Class, 'L.mapbox.gridLayer');\n        this._layer = _;\n    },\n\n    setTemplate: function(template) {\n        util.strict(template, 'string');\n        this.options.template = template;\n        return this;\n    },\n\n    _template: function(format, data) {\n        if (!data) return;\n        var template = this.options.template || this._layer.getTileJSON().template;\n        if (template) {\n            var d = {};\n            d['__' + format + '__'] = true;\n            return this.options.sanitizer(\n                Mustache.to_html(template, L.extend(d, data)));\n        }\n    },\n\n    // change the content of the tooltip HTML if it has changed, otherwise\n    // noop\n    _show: function(content, o) {\n        if (content === this._currentContent) return;\n\n        this._currentContent = content;\n\n        if (this.options.follow) {\n            this._popup.setContent(content)\n                .setLatLng(o.latLng);\n            if (this._map._popup !== this._popup) this._popup.openOn(this._map);\n        } else {\n            this._container.style.display = 'block';\n            this._contentWrapper.innerHTML = content;\n        }\n    },\n\n    hide: function() {\n        this._pinned = false;\n        this._currentContent = '';\n\n        this._map.closePopup();\n        this._container.style.display = 'none';\n        this._contentWrapper.innerHTML = '';\n\n        L.DomUtil.removeClass(this._container, 'closable');\n\n        return this;\n    },\n\n    _mouseover: function(o) {\n        if (o.data) {\n            L.DomUtil.addClass(this._map._container, 'map-clickable');\n        } else {\n            L.DomUtil.removeClass(this._map._container, 'map-clickable');\n        }\n\n        if (this._pinned) return;\n\n        var content = this._template('teaser', o.data);\n        if (content) {\n            this._show(content, o);\n        } else {\n            this.hide();\n        }\n    },\n\n    _mousemove: function(o) {\n        if (this._pinned) return;\n        if (!this.options.follow) return;\n\n        this._popup.setLatLng(o.latLng);\n    },\n\n    _navigateTo: function(url) {\n        window.top.location.href = url;\n    },\n\n    _click: function(o) {\n\n        var location_formatted = this._template('location', o.data);\n        if (this.options.location && location_formatted &&\n            location_formatted.search(/^https?:/) === 0) {\n            return this._navigateTo(this._template('location', o.data));\n        }\n\n        if (!this.options.pinnable) return;\n\n        var content = this._template('full', o.data);\n\n        if (!content && this.options.touchTeaser && L.Browser.touch) {\n            content = this._template('teaser', o.data);\n        }\n\n        if (content) {\n            L.DomUtil.addClass(this._container, 'closable');\n            this._pinned = true;\n            this._show(content, o);\n        } else if (this._pinned) {\n            L.DomUtil.removeClass(this._container, 'closable');\n            this._pinned = false;\n            this.hide();\n        }\n    },\n\n    _onPopupClose: function() {\n        this._currentContent = null;\n        this._pinned = false;\n    },\n\n    _createClosebutton: function(container, fn) {\n        var link = L.DomUtil.create('a', 'close', container);\n\n        link.innerHTML = 'close';\n        link.href = '#';\n        link.title = 'close';\n\n        L.DomEvent\n            .on(link, 'click', L.DomEvent.stopPropagation)\n            .on(link, 'mousedown', L.DomEvent.stopPropagation)\n            .on(link, 'dblclick', L.DomEvent.stopPropagation)\n            .on(link, 'click', L.DomEvent.preventDefault)\n            .on(link, 'click', fn, this);\n\n        return link;\n    },\n\n    onAdd: function(map) {\n        this._map = map;\n\n        var className = 'leaflet-control-grid map-tooltip',\n            container = L.DomUtil.create('div', className),\n            contentWrapper = L.DomUtil.create('div', 'map-tooltip-content');\n\n        // hide the container element initially\n        container.style.display = 'none';\n        this._createClosebutton(container, this.hide);\n        container.appendChild(contentWrapper);\n\n        this._contentWrapper = contentWrapper;\n        this._popup = new L.Popup({ autoPan: false, closeOnClick: false });\n\n        map.on('popupclose', this._onPopupClose, this);\n\n        L.DomEvent\n            .disableClickPropagation(container)\n            // allow people to scroll tooltips with mousewheel\n            .addListener(container, 'mousewheel', L.DomEvent.stopPropagation);\n\n        this._layer\n            .on('mouseover', this._mouseover, this)\n            .on('mousemove', this._mousemove, this)\n            .on('click', this._click, this);\n\n        return container;\n    },\n\n    onRemove: function (map) {\n\n        map.off('popupclose', this._onPopupClose, this);\n\n        this._layer\n            .off('mouseover', this._mouseover, this)\n            .off('mousemove', this._mousemove, this)\n            .off('click', this._click, this);\n    }\n});\n\nmodule.exports.GridControl = GridControl;\n\nmodule.exports.gridControl = function(_, options) {\n    return new GridControl(_, options);\n};\n","'use strict';\n\nvar util = require('./util'),\n    request = require('./request'),\n    grid = require('./grid');\n\n// forked from danzel/L.UTFGrid\nvar GridLayer = L.Layer.extend({\n    includes: [require('./load_tilejson')],\n\n    options: {\n        template: function() { return ''; }\n    },\n\n    _mouseOn: null,\n    _tilejson: {},\n    _cache: {},\n\n    initialize: function(_, options) {\n        L.Util.setOptions(this, options);\n        this._loadTileJSON(_);\n    },\n\n    _setTileJSON: function(json) {\n        util.strict(json, 'object');\n\n        L.extend(this.options, {\n            grids: json.grids,\n            minZoom: json.minzoom,\n            maxZoom: json.maxzoom,\n            bounds: json.bounds && util.lbounds(json.bounds)\n        });\n\n        this._tilejson = json;\n        this._cache = {};\n        this._update();\n\n        return this;\n    },\n\n    getTileJSON: function() {\n        return this._tilejson;\n    },\n\n    active: function() {\n        return !!(this._map && this.options.grids && this.options.grids.length);\n    },\n\n    onAdd: function(map) {\n        this._map = map;\n        this._update();\n\n        this._map\n            .on('click', this._click, this)\n            .on('mousemove', this._move, this)\n            .on('moveend', this._update, this);\n    },\n\n    onRemove: function() {\n        this._map\n            .off('click', this._click, this)\n            .off('mousemove', this._move, this)\n            .off('moveend', this._update, this);\n    },\n\n    getData: function(latlng, callback) {\n        if (!this.active()) return;\n\n        var map = this._map,\n            point = map.project(latlng.wrap()),\n            tileSize = 256,\n            resolution = 4,\n            x = Math.floor(point.x / tileSize),\n            y = Math.floor(point.y / tileSize),\n            max = map.options.crs.scale(map.getZoom()) / tileSize;\n\n        x = (x + max) % max;\n        y = (y + max) % max;\n\n        this._getTile(map.getZoom(), x, y, function(grid) {\n            var gridX = Math.floor((point.x - (x * tileSize)) / resolution),\n                gridY = Math.floor((point.y - (y * tileSize)) / resolution);\n\n            callback(grid(gridX, gridY));\n        });\n\n        return this;\n    },\n\n    _click: function(e) {\n        this.getData(e.latlng, L.bind(function(data) {\n            this.fire('click', {\n                latLng: e.latlng,\n                data: data\n            });\n        }, this));\n    },\n\n    _move: function(e) {\n        this.getData(e.latlng, L.bind(function(data) {\n            if (data !== this._mouseOn) {\n                if (this._mouseOn) {\n                    this.fire('mouseout', {\n                        latLng: e.latlng,\n                        data: this._mouseOn\n                    });\n                }\n\n                this.fire('mouseover', {\n                    latLng: e.latlng,\n                    data: data\n                });\n\n                this._mouseOn = data;\n            } else {\n                this.fire('mousemove', {\n                    latLng: e.latlng,\n                    data: data\n                });\n            }\n        }, this));\n    },\n\n    _getTileURL: function(tilePoint) {\n        var urls = this.options.grids,\n            index = (tilePoint.x + tilePoint.y) % urls.length,\n            url = urls[index];\n\n        return L.Util.template(url, tilePoint);\n    },\n\n    // Load up all required json grid files\n    _update: function() {\n        if (!this.active()) return;\n\n        var bounds = this._map.getPixelBounds(),\n            z = this._map.getZoom(),\n            tileSize = 256;\n\n        if (z > this.options.maxZoom || z < this.options.minZoom) return;\n\n        var tileBounds = L.bounds(\n                bounds.min.divideBy(tileSize)._floor(),\n                bounds.max.divideBy(tileSize)._floor()),\n            max = this._map.options.crs.scale(z) / tileSize;\n\n        for (var x = tileBounds.min.x; x <= tileBounds.max.x; x++) {\n            for (var y = tileBounds.min.y; y <= tileBounds.max.y; y++) {\n                // x wrapped\n                this._getTile(z, ((x % max) + max) % max, ((y % max) + max) % max);\n            }\n        }\n    },\n\n    _getTile: function(z, x, y, callback) {\n        var key = z + '_' + x + '_' + y,\n            tilePoint = L.point(x, y);\n\n        tilePoint.z = z;\n\n        if (!this._tileShouldBeLoaded(tilePoint)) {\n            return;\n        }\n\n        if (key in this._cache) {\n            if (!callback) return;\n\n            if (typeof this._cache[key] === 'function') {\n                callback(this._cache[key]); // Already loaded\n            } else {\n                this._cache[key].push(callback); // Pending\n            }\n\n            return;\n        }\n\n        this._cache[key] = [];\n\n        if (callback) {\n            this._cache[key].push(callback);\n        }\n\n        request(this._getTileURL(tilePoint), L.bind(function(err, json) {\n            var callbacks = this._cache[key];\n            this._cache[key] = grid(json);\n            for (var i = 0; i < callbacks.length; ++i) {\n                callbacks[i](this._cache[key]);\n            }\n        }, this));\n    },\n\n    _tileShouldBeLoaded: function(tilePoint) {\n        if (tilePoint.z > this.options.maxZoom || tilePoint.z < this.options.minZoom) {\n            return false;\n        }\n\n        if (this.options.bounds) {\n            var tileSize = 256,\n                nwPoint = tilePoint.multiplyBy(tileSize),\n                sePoint = nwPoint.add(new L.Point(tileSize, tileSize)),\n                nw = this._map.unproject(nwPoint),\n                se = this._map.unproject(sePoint),\n                bounds = new L.LatLngBounds([nw, se]);\n\n            if (!this.options.bounds.intersects(bounds)) {\n                return false;\n            }\n        }\n\n        return true;\n    }\n});\n\nmodule.exports.GridLayer = GridLayer;\n\nmodule.exports.gridLayer = function(_, options) {\n    return new GridLayer(_, options);\n};\n","'use strict';\n\nvar leaflet = require('./leaflet');\n\nrequire('./mapbox');\n\nmodule.exports = leaflet;\n","module.exports = window.L = require('leaflet/dist/leaflet-src');\n","'use strict';\n\nvar LegendControl = L.Control.extend({\n\n    options: {\n        position: 'bottomright',\n        sanitizer: require('sanitize-caja')\n    },\n\n    initialize: function(options) {\n        L.setOptions(this, options);\n        this._legends = {};\n    },\n\n    onAdd: function() {\n        this._container = L.DomUtil.create('div', 'map-legends wax-legends');\n        L.DomEvent.disableClickPropagation(this._container);\n\n        this._update();\n\n        return this._container;\n    },\n\n    addLegend: function(text) {\n        if (!text) { return this; }\n\n        if (!this._legends[text]) {\n            this._legends[text] = 0;\n        }\n\n        this._legends[text]++;\n        return this._update();\n    },\n\n    removeLegend: function(text) {\n        if (!text) { return this; }\n        if (this._legends[text]) this._legends[text]--;\n        return this._update();\n    },\n\n    _update: function() {\n        if (!this._map) { return this; }\n\n        this._container.innerHTML = '';\n        var hide = 'none';\n\n        for (var i in this._legends) {\n            if (this._legends.hasOwnProperty(i) && this._legends[i]) {\n                var div = L.DomUtil.create('div', 'map-legend wax-legend', this._container);\n                div.innerHTML = this.options.sanitizer(i);\n                hide = 'block';\n            }\n        }\n\n        // hide the control entirely unless there is at least one legend;\n        // otherwise there will be a small grey blemish on the map.\n        this._container.style.display = hide;\n\n        return this;\n    }\n});\n\nmodule.exports.LegendControl = LegendControl;\n\nmodule.exports.legendControl = function(options) {\n    return new LegendControl(options);\n};\n","'use strict';\n\nvar request = require('./request'),\n    format_url = require('./format_url'),\n    util = require('./util');\n\nmodule.exports = {\n    _loadTileJSON: function(_) {\n        if (typeof _ === 'string') {\n            _ = format_url.tileJSON(_, this.options && this.options.accessToken);\n            request(_, L.bind(function(err, json) {\n                if (err) {\n                    util.log('could not load TileJSON at ' + _);\n                    this.fire('error', {error: err});\n                } else if (json) {\n                    this._setTileJSON(json);\n                    this.fire('ready');\n                }\n            }, this));\n        } else if (_ && typeof _ === 'object') {\n            this._setTileJSON(_);\n        }\n    }\n};\n","'use strict';\n\nvar tileLayer = require('./tile_layer').tileLayer,\n    featureLayer = require('./feature_layer').featureLayer,\n    gridLayer = require('./grid_layer').gridLayer,\n    gridControl = require('./grid_control').gridControl,\n    shareControl = require('./share_control').shareControl,\n    legendControl = require('./legend_control').legendControl,\n    mapboxLogoControl = require('./mapbox_logo').mapboxLogoControl,\n    feedback = require('./feedback');\n\nfunction withAccessToken(options, accessToken) {\n    if (!accessToken || options.accessToken)\n        return options;\n    return L.extend({accessToken: accessToken}, options);\n}\n\nvar LMap = L.Map.extend({\n    includes: [require('./load_tilejson')],\n\n    options: {\n        tileLayer: {},\n        featureLayer: {},\n        gridLayer: {},\n        legendControl: {},\n        gridControl: {},\n        shareControl: false,\n        sanitizer: require('sanitize-caja')\n    },\n\n    _tilejson: {},\n\n    initialize: function(element, _, options) {\n\n        L.Map.prototype.initialize.call(this, element,\n            L.extend({}, L.Map.prototype.options, options));\n\n        // Disable the default 'Leaflet' text\n        if (this.attributionControl) {\n            this.attributionControl.setPrefix('');\n\n            var compact = this.options.attributionControl.compact;\n            // Set a compact display if map container width is < 640 or\n            // compact is set to `true` in attributionControl options.\n            if (compact || (compact !== false && this._container.offsetWidth <= 640)) {\n                L.DomUtil.addClass(this.attributionControl._container, 'leaflet-compact-attribution');\n            }\n\n            if (compact === undefined) {\n                this.on('resize', function() {\n                    if (this._container.offsetWidth > 640) {\n                        L.DomUtil.removeClass(this.attributionControl._container, 'leaflet-compact-attribution');\n                    } else {\n                        L.DomUtil.addClass(this.attributionControl._container, 'leaflet-compact-attribution');\n                    }\n                });\n            }\n        }\n\n        if (this.options.tileLayer) {\n            this.tileLayer = tileLayer(undefined,\n                withAccessToken(this.options.tileLayer, this.options.accessToken));\n            this.addLayer(this.tileLayer);\n        }\n\n        if (this.options.featureLayer) {\n            this.featureLayer = featureLayer(undefined,\n                withAccessToken(this.options.featureLayer, this.options.accessToken));\n            this.addLayer(this.featureLayer);\n        }\n\n        if (this.options.gridLayer) {\n            this.gridLayer = gridLayer(undefined,\n                withAccessToken(this.options.gridLayer, this.options.accessToken));\n            this.addLayer(this.gridLayer);\n        }\n\n        if (this.options.gridLayer && this.options.gridControl) {\n            this.gridControl = gridControl(this.gridLayer, this.options.gridControl);\n            this.addControl(this.gridControl);\n        }\n\n        if (this.options.legendControl) {\n            this.legendControl = legendControl(this.options.legendControl);\n            this.addControl(this.legendControl);\n        }\n\n        if (this.options.shareControl) {\n            this.shareControl = shareControl(undefined,\n                withAccessToken(this.options.shareControl, this.options.accessToken));\n            this.addControl(this.shareControl);\n        }\n\n        this._mapboxLogoControl = mapboxLogoControl(this.options.mapboxLogoControl);\n        this.addControl(this._mapboxLogoControl);\n\n        this._loadTileJSON(_);\n\n        this.on('layeradd', this._onLayerAdd, this)\n            .on('layerremove', this._onLayerRemove, this)\n            .on('moveend', this._updateMapFeedbackLink, this);\n\n        this.whenReady(function () {\n            feedback.on('change', this._updateMapFeedbackLink, this);\n        });\n\n        this.on('unload', function () {\n            feedback.off('change', this._updateMapFeedbackLink, this);\n        });\n    },\n\n    // use a javascript object of tilejson data to configure this layer\n    _setTileJSON: function(_) {\n        this._tilejson = _;\n        this._initialize(_);\n        return this;\n    },\n\n    getTileJSON: function() {\n        return this._tilejson;\n    },\n\n    _initialize: function(json) {\n        if (this.tileLayer) {\n            this.tileLayer._setTileJSON(json);\n            this._updateLayer(this.tileLayer);\n        }\n\n        if (this.featureLayer && !this.featureLayer.getGeoJSON() && json.data && json.data[0]) {\n            this.featureLayer.loadURL(json.data[0]);\n        }\n\n        if (this.gridLayer) {\n            this.gridLayer._setTileJSON(json);\n            this._updateLayer(this.gridLayer);\n        }\n\n        if (this.legendControl && json.legend) {\n            this.legendControl.addLegend(json.legend);\n        }\n\n        if (this.shareControl) {\n            this.shareControl._setTileJSON(json);\n        }\n\n        this._mapboxLogoControl._setTileJSON(json);\n\n        if (!this._loaded && json.center) {\n            var zoom = this.getZoom() !== undefined ? this.getZoom() : json.center[2],\n                center = L.latLng(json.center[1], json.center[0]);\n\n            this.setView(center, zoom);\n        }\n    },\n\n    _updateMapFeedbackLink: function() {\n        if (!this._controlContainer.getElementsByClassName) return;\n        var link = this._controlContainer.getElementsByClassName('mapbox-improve-map');\n        if (link.length && this._loaded) {\n            var center = this.getCenter().wrap();\n            var tilejson = this._tilejson || {};\n            var id = tilejson.id || '';\n\n            var hash = '#' + id + '/' +\n                center.lng.toFixed(3) + '/' +\n                center.lat.toFixed(3) + '/' +\n                this.getZoom();\n\n            for (var key in feedback.data) {\n                hash += '/' + key + '=' + feedback.data[key];\n            }\n\n            for (var i = 0; i < link.length; i++) {\n                link[i].hash = hash;\n            }\n        }\n    },\n\n    _onLayerAdd: function(e) {\n        if ('on' in e.layer) {\n            e.layer.on('ready', this._onLayerReady, this);\n        }\n        window.setTimeout(L.bind(this._updateMapFeedbackLink, this), 0); // Update after attribution control resets the HTML.\n    },\n\n    _onLayerRemove: function(e) {\n        if ('on' in e.layer) {\n            e.layer.off('ready', this._onLayerReady, this);\n        }\n        window.setTimeout(L.bind(this._updateMapFeedbackLink, this), 0); // Update after attribution control resets the HTML.\n    },\n\n    _onLayerReady: function(e) {\n        this._updateLayer(e.target);\n    },\n\n    _updateLayer: function(layer) {\n        if (!layer.options) return;\n\n        if (this.attributionControl && this._loaded && layer.getAttribution) {\n            this.attributionControl.addAttribution(layer.getAttribution());\n        }\n\n        if (!(L.stamp(layer) in this._zoomBoundLayers) &&\n                (layer.options.maxZoom || layer.options.minZoom)) {\n            this._zoomBoundLayers[L.stamp(layer)] = layer;\n        }\n\n        this._updateMapFeedbackLink();\n        this._updateZoomLevels();\n    }\n});\n\nmodule.exports.Map = LMap;\n\nmodule.exports.map = function(element, _, options) {\n    return new LMap(element, _, options);\n};\n","'use strict';\n\nvar geocoderControl = require('./geocoder_control'),\n    gridControl = require('./grid_control'),\n    featureLayer = require('./feature_layer'),\n    legendControl = require('./legend_control'),\n    shareControl = require('./share_control'),\n    tileLayer = require('./tile_layer'),\n    map = require('./map'),\n    gridLayer = require('./grid_layer'),\n    styleLayer = require('./style_layer');\n\nL.mapbox = module.exports = {\n    VERSION: require('../package.json').version,\n    geocoder: require('./geocoder'),\n    marker: require('./marker'),\n    simplestyle: require('./simplestyle'),\n    tileLayer: tileLayer.tileLayer,\n    TileLayer: tileLayer.TileLayer,\n    styleLayer: styleLayer.styleLayer,\n    StyleLayer: styleLayer.StyleLayer,\n    shareControl: shareControl.shareControl,\n    ShareControl: shareControl.ShareControl,\n    legendControl: legendControl.legendControl,\n    LegendControl: legendControl.LegendControl,\n    geocoderControl: geocoderControl.geocoderControl,\n    GeocoderControl: geocoderControl.GeocoderControl,\n    gridControl: gridControl.gridControl,\n    GridControl: gridControl.GridControl,\n    gridLayer: gridLayer.gridLayer,\n    GridLayer: gridLayer.GridLayer,\n    featureLayer: featureLayer.featureLayer,\n    FeatureLayer: featureLayer.FeatureLayer,\n    map: map.map,\n    Map: map.Map,\n    config: require('./config'),\n    sanitize: require('sanitize-caja'),\n    template: require('mustache').to_html,\n    feedback: require('./feedback')\n};\n\n\n// Hardcode image path, because Leaflet's autodetection\n// fails, because mapbox.js is not named leaflet.js\nwindow.L.Icon.Default.imagePath =\n    // Detect bad-news protocols like file:// and hardcode\n    // to https if they're detected.\n    ((document.location.protocol === 'https:' ||\n    document.location.protocol === 'http:') ? '' : 'https:') +\n    '//api.tiles.mapbox.com/mapbox.js/' + 'v' +\n    require('../package.json').version + '/images/';\n","'use strict';\n\nvar MapboxLogoControl = L.Control.extend({\n\n    options: {\n        position: 'bottomleft'\n    },\n\n    initialize: function(options) {\n        L.setOptions(this, options);\n    },\n\n    onAdd: function() {\n        this._container = L.DomUtil.create('div', 'mapbox-logo');\n        return this._container;\n    },\n\n    _setTileJSON: function(json) {\n        // Check if account referenced by the accessToken\n        // is asscociated with the Mapbox Logo\n        // as determined by mapbox-maps.\n        if (json.mapbox_logo) {\n            L.DomUtil.addClass(this._container, 'mapbox-logo-true');\n        }\n    }\n});\n\nmodule.exports.MapboxLogoControl = MapboxLogoControl;\n\nmodule.exports.mapboxLogoControl = function(options) {\n    return new MapboxLogoControl(options);\n};\n","'use strict';\n\nvar format_url = require('./format_url'),\n    util = require('./util'),\n    sanitize = require('sanitize-caja');\n\n// mapbox-related markers functionality\n// provide an icon from mapbox's simple-style spec and hosted markers\n// service\nfunction icon(fp, options) {\n    fp = fp || {};\n\n    var sizes = {\n            small: [20, 50],\n            medium: [30, 70],\n            large: [35, 90]\n        },\n        size = fp['marker-size'] || 'medium',\n        symbol = ('marker-symbol' in fp && fp['marker-symbol'] !== '') ? '-' + fp['marker-symbol'] : '',\n        color = (fp['marker-color'] || '7e7e7e').replace('#', '');\n\n    return L.icon({\n        iconUrl: format_url('/v4/marker/' +\n            'pin-' + size.charAt(0) + symbol + '+' + color +\n            // detect and use retina markers, which are x2 resolution\n            (L.Browser.retina ? '@2x' : '') + '.png', options && options.accessToken),\n        iconSize: sizes[size],\n        iconAnchor: [sizes[size][0] / 2, sizes[size][1] / 2],\n        popupAnchor: [0, -sizes[size][1] / 2]\n    });\n}\n\n// a factory that provides markers for Leaflet from Mapbox's\n// [simple-style specification](https://github.com/mapbox/simplestyle-spec)\n// and [Markers API](http://mapbox.com/developers/api/#markers).\nfunction style(f, latlon, options) {\n    return L.marker(latlon, {\n        icon: icon(f.properties, options),\n        title: util.strip_tags(\n            sanitize((f.properties && f.properties.title) || ''))\n    });\n}\n\n// Sanitize and format properties of a GeoJSON Feature object in order\n// to form the HTML string used as the argument for `L.createPopup`\nfunction createPopup(f, sanitizer) {\n    if (!f || !f.properties) return '';\n    var popup = '';\n\n    if (f.properties.title) {\n        popup += '<div class=\"marker-title\">' + f.properties.title + '</div>';\n    }\n\n    if (f.properties.description) {\n        popup += '<div class=\"marker-description\">' + f.properties.description + '</div>';\n    }\n\n    return (sanitizer || sanitize)(popup);\n}\n\nmodule.exports = {\n    icon: icon,\n    style: style,\n    createPopup: createPopup\n};\n","'use strict';\n\nvar corslite = require('corslite'),\n    strict = require('./util').strict,\n    config = require('./config');\n\nvar protocol = /^(https?:)?(?=\\/\\/(.|api)\\.tiles\\.mapbox\\.com\\/)/;\n\nmodule.exports = function(url, callback) {\n    strict(url, 'string');\n    strict(callback, 'function');\n\n    url = url.replace(protocol, function(match, protocol) {\n        if (!('withCredentials' in new window.XMLHttpRequest())) {\n            // XDomainRequest in use; doesn't support cross-protocol requests\n            return document.location.protocol;\n        } else if (protocol === 'https:' || document.location.protocol === 'https:' || config.FORCE_HTTPS) {\n            return 'https:';\n        } else {\n            return 'http:';\n        }\n    });\n\n    function onload(err, resp) {\n        if (!err && resp) {\n            resp = JSON.parse(resp.responseText);\n        }\n        callback(err, resp);\n    }\n\n    return corslite(url, onload);\n};\n","'use strict';\n\nvar format_url = require('./format_url');\n\nvar ShareControl = L.Control.extend({\n    includes: [require('./load_tilejson')],\n\n    options: {\n        position: 'topleft',\n        url: ''\n    },\n\n    initialize: function(_, options) {\n        L.setOptions(this, options);\n        this._loadTileJSON(_);\n    },\n\n    _setTileJSON: function(json) {\n        this._tilejson = json;\n    },\n\n    onAdd: function(map) {\n        this._map = map;\n\n        var container = L.DomUtil.create('div', 'leaflet-control-mapbox-share leaflet-bar');\n        var link = L.DomUtil.create('a', 'mapbox-share mapbox-icon mapbox-icon-share', container);\n        link.href = '#';\n\n        this._modal = L.DomUtil.create('div', 'mapbox-modal', this._map._container);\n        this._mask = L.DomUtil.create('div', 'mapbox-modal-mask', this._modal);\n        this._content = L.DomUtil.create('div', 'mapbox-modal-content', this._modal);\n\n        L.DomEvent.addListener(link, 'click', this._shareClick, this);\n        L.DomEvent.disableClickPropagation(container);\n\n        this._map.on('mousedown', this._clickOut, this);\n\n        return container;\n    },\n\n    _clickOut: function(e) {\n        if (this._sharing) {\n            L.DomEvent.preventDefault(e);\n            L.DomUtil.removeClass(this._modal, 'active');\n            this._content.innerHTML = '';\n            this._sharing = null;\n            return;\n        }\n    },\n\n    _shareClick: function(e) {\n        L.DomEvent.stop(e);\n        if (this._sharing) return this._clickOut(e);\n\n        var tilejson = this._tilejson || this._map._tilejson || {},\n            url = encodeURIComponent(this.options.url || tilejson.webpage || window.location),\n            name = encodeURIComponent(tilejson.name),\n            image = format_url('/v4/' + tilejson.id + '/' + this._map.getCenter().lng + ',' + this._map.getCenter().lat + ',' + this._map.getZoom() + '/600x600.png', this.options.accessToken),\n            embed = format_url('/v4/' + tilejson.id + '.html', this.options.accessToken),\n            twitterURL = '//twitter.com/intent/tweet?status=' + name + ' ' + url,\n            facebookURL = '//www.facebook.com/sharer.php?u=' + url + '&t=' + name,\n            pinterestURL = '//www.pinterest.com/pin/create/button/?url=' + url + '&media=' + image + '&description=' + name,\n            embedValue = '<iframe width=\"100%\" height=\"500px\" frameBorder=\"0\" src=\"' + embed + '\"></iframe>',\n            embedLabel = 'Copy and paste this <strong>HTML code</strong> into documents to embed this map on web pages.';\n\n        function createShareButton(buttonClass, href, socialMediaName) {\n            var elem = document.createElement('a');\n            elem.setAttribute('class', buttonClass);\n            elem.setAttribute('href', href);\n            elem.setAttribute('target', '_blank');\n            socialMediaName = document.createTextNode(socialMediaName);\n            elem.appendChild(socialMediaName);\n\n            return elem;\n        }\n\n        L.DomUtil.addClass(this._modal, 'active');\n\n        this._sharing = L.DomUtil.create('div', 'mapbox-modal-body', this._content);\n\n        var twitterButton = createShareButton('mapbox-button mapbox-button-icon mapbox-icon-twitter', twitterURL, 'Twitter');\n        var facebookButton = createShareButton('mapbox-button mapbox-button-icon mapbox-icon-facebook', facebookURL, 'Facebook');\n        var pinterestButton = createShareButton('mapbox-button mapbox-button-icon mapbox-icon-pinterest', pinterestURL, 'Pinterest');\n\n        var shareHeader = document.createElement('h3');\n        var shareText = document.createTextNode('Share this map');\n        shareHeader.appendChild(shareText);\n\n        var shareButtons = document.createElement('div');\n        shareButtons.setAttribute('class', 'mapbox-share-buttons');\n        shareButtons.appendChild(facebookButton);\n        shareButtons.appendChild(twitterButton);\n        shareButtons.appendChild(pinterestButton);\n\n        this._sharing.appendChild(shareHeader);\n        this._sharing.appendChild(shareButtons);\n\n        var input = L.DomUtil.create('input', 'mapbox-embed', this._sharing);\n        input.type = 'text';\n        input.value = embedValue;\n\n        var label = L.DomUtil.create('label', 'mapbox-embed-description', this._sharing);\n        label.innerHTML = embedLabel;\n\n        var close = L.DomUtil.create('a', 'leaflet-popup-close-button', this._sharing);\n        close.href = '#';\n\n        L.DomEvent.disableClickPropagation(this._sharing);\n        L.DomEvent.addListener(close, 'click', this._clickOut, this);\n        L.DomEvent.addListener(input, 'click', function(e) {\n            e.target.focus();\n            e.target.select();\n        });\n    }\n});\n\nmodule.exports.ShareControl = ShareControl;\n\nmodule.exports.shareControl = function(_, options) {\n    return new ShareControl(_, options);\n};\n","'use strict';\n\n// an implementation of the simplestyle spec for polygon and linestring features\n// https://github.com/mapbox/simplestyle-spec\nvar defaults = {\n    stroke: '#555555',\n    'stroke-width': 2,\n    'stroke-opacity': 1,\n    fill: '#555555',\n    'fill-opacity': 0.5\n};\n\nvar mapping = [\n    ['stroke', 'color'],\n    ['stroke-width', 'weight'],\n    ['stroke-opacity', 'opacity'],\n    ['fill', 'fillColor'],\n    ['fill-opacity', 'fillOpacity']\n];\n\nfunction fallback(a, b) {\n    var c = {};\n    for (var k in b) {\n        if (a[k] === undefined) c[k] = b[k];\n        else c[k] = a[k];\n    }\n    return c;\n}\n\nfunction remap(a) {\n    var d = {};\n    for (var i = 0; i < mapping.length; i++) {\n        d[mapping[i][1]] = a[mapping[i][0]];\n    }\n    return d;\n}\n\nfunction style(feature) {\n    return remap(fallback(feature.properties || {}, defaults));\n}\n\nmodule.exports = {\n    style: style,\n    defaults: defaults\n};\n","'use strict';\n\nvar util = require('./util');\nvar format_url = require('./format_url');\nvar request = require('./request');\n\nvar StyleLayer = L.TileLayer.extend({\n\n    options: {\n        sanitizer: require('sanitize-caja')\n    },\n\n    initialize: function(_, options) {\n        L.TileLayer.prototype.initialize.call(this, undefined, L.extend({}, options, {\n            tileSize: 512,\n            zoomOffset: -1,\n            minNativeZoom: 0,\n            tms: false\n        }));\n        this._url = this._formatTileURL(_);\n        this._getAttribution(_);\n    },\n\n    _getAttribution: function(_) {\n        var styleURL = format_url.style(_, this.options && this.options.accessToken);\n        request(styleURL, L.bind(function(err, style) {\n            if (err) {\n                util.log('could not load Mapbox style at ' + styleURL);\n                this.fire('error', {error: err});\n            }\n            var sources = [];\n            for (var id in style.sources) {\n                var source = style.sources[id].url.split('mapbox://')[1];\n                sources.push(source);\n            }\n            request(format_url.tileJSON(sources.join(), this.options.accessToken), L.bind(function(err, json) {\n                if (err) {\n                    util.log('could not load TileJSON at ' + _);\n                    this.fire('error', {error: err});\n                } else if (json) {\n                    util.strict(json, 'object');\n\n                    this.options.attribution = this.options.sanitizer(json.attribution);\n\n                    this._tilejson = json;\n                    this.fire('ready');\n                }\n            }, this));\n        }, this));\n    },\n\n    // disable the setUrl function, which is not available on mapbox tilelayers\n    setUrl: null,\n\n    _formatTileURL: function(style) {\n        if (typeof style === 'string') {\n            if (style.indexOf('mapbox://styles/') === -1) {\n                util.log('Incorrectly formatted Mapbox style at ' + style);\n                this.fire('error');\n            }\n            var ownerIDStyle = style.split('mapbox://styles/')[1];\n            return format_url('/styles/v1/' + ownerIDStyle + '/tiles/{z}/{x}/{y}{r}', this.options.accessToken);\n        } else if (typeof style === 'object') {\n            return format_url('/styles/v1/' + style.owner + '/' + style.id + '/tiles/{z}/{x}/{y}{r}', this.options.accessToken);\n        }\n    }\n});\n\nmodule.exports.StyleLayer = StyleLayer;\n\nmodule.exports.styleLayer = function(_, options) {\n    return new StyleLayer(_, options);\n};\n","'use strict';\n\nvar util = require('./util');\nvar formatPattern = /\\.((?:png|jpg)\\d*)(?=$|\\?)/;\n\nvar TileLayer = L.TileLayer.extend({\n    includes: [require('./load_tilejson')],\n\n    options: {\n        sanitizer: require('sanitize-caja')\n    },\n\n    // http://mapbox.com/developers/api/#image_quality\n    formats: [\n        'png', 'jpg',\n        // PNG\n        'png32', 'png64', 'png128', 'png256',\n        // JPG\n        'jpg70', 'jpg80', 'jpg90'],\n\n    scalePrefix: '@2x.',\n\n    initialize: function(_, options) {\n        L.TileLayer.prototype.initialize.call(this, undefined, options);\n\n        this._tilejson = {};\n\n        if (options && options.format) {\n            util.strict_oneof(options.format, this.formats);\n        }\n\n        this._loadTileJSON(_);\n    },\n\n    setFormat: function(_) {\n        util.strict(_, 'string');\n        this.options.format = _;\n        this.redraw();\n        return this;\n    },\n\n    // disable the setUrl function, which is not available on mapbox tilelayers\n    setUrl: null,\n\n    _setTileJSON: function(json) {\n        util.strict(json, 'object');\n\n        if (!this.options.format) {\n          var match = json.tiles[0].match(formatPattern);\n          if (match) {\n              this.options.format = match[1];\n          }\n        }\n\n        L.extend(this.options, {\n            tiles: json.tiles,\n            attribution: this.options.sanitizer(json.attribution),\n            minZoom: json.minzoom || 0,\n            maxZoom: json.maxzoom || 18,\n            tms: json.scheme === 'tms',\n            bounds: json.bounds && util.lbounds(json.bounds)\n        });\n\n        this._tilejson = json;\n        this.redraw();\n        return this;\n    },\n\n    getTileJSON: function() {\n        return this._tilejson;\n    },\n\n    // this is an exception to mapbox.js naming rules because it's called\n    // by `L.map`\n    getTileUrl: function(tilePoint) {\n        var tiles = this.options.tiles,\n            index = Math.floor(Math.abs(tilePoint.x + tilePoint.y) % tiles.length),\n            url = tiles[index];\n\n        var templated = L.Util.template(url, tilePoint);\n        if (!templated || !this.options.format) {\n            return templated;\n        } else {\n            return templated.replace(formatPattern,\n                (L.Browser.retina ? this.scalePrefix : '.') + this.options.format);\n        }\n    },\n\n    // TileJSON.TileLayers are added to the map immediately, so that they get\n    // the desired z-index, but do not update until the TileJSON has been loaded.\n    _update: function() {\n        if (this.options.tiles) {\n            L.TileLayer.prototype._update.call(this);\n        }\n    }\n});\n\nmodule.exports.TileLayer = TileLayer;\n\nmodule.exports.tileLayer = function(_, options) {\n    return new TileLayer(_, options);\n};\n","'use strict';\n\nfunction contains(item, list) {\n    if (!list || !list.length) return false;\n    for (var i = 0; i < list.length; i++) {\n        if (list[i] === item) return true;\n    }\n    return false;\n}\n\nmodule.exports = {\n    idUrl: function(_, t) {\n        if (_.indexOf('/') === -1) t.loadID(_);\n        else t.loadURL(_);\n    },\n    log: function(_) {\n        if (typeof console === 'object' &&\n            typeof console.error === 'function') {\n            console.error(_);\n        }\n    },\n    strict: function(_, type) {\n        if (typeof _ !== type) {\n            throw new Error('Invalid argument: ' + type + ' expected');\n        }\n    },\n    strict_instance: function(_, klass, name) {\n        if (!(_ instanceof klass)) {\n            throw new Error('Invalid argument: ' + name + ' expected');\n        }\n    },\n    strict_oneof: function(_, values) {\n        if (!contains(_, values)) {\n            throw new Error('Invalid argument: ' + _ + ' given, valid values are ' +\n                values.join(', '));\n        }\n    },\n    strip_tags: function(_) {\n        return _.replace(/<[^<]+>/g, '');\n    },\n    lbounds: function(_) {\n        // leaflet-compatible bounds, since leaflet does not do geojson\n        return new L.LatLngBounds([[_[1], _[0]], [_[3], _[2]]]);\n    }\n};\n"]}