| /* |
| Leaflet, a JavaScript library for mobile-friendly interactive maps. http://leafletjs.com |
| (c) 2010-2013, Vladimir Agafonkin |
| (c) 2010-2011, CloudMade |
| */ |
| (function (window, document, undefined) { |
| var oldL = window.L, |
| L = {}; |
| |
| L.version = '0.7.7'; |
| |
| // define Leaflet for Node module pattern loaders, including Browserify |
| if (typeof module === 'object' && typeof module.exports === 'object') { |
| module.exports = L; |
| |
| // define Leaflet as an AMD module |
| } else if (typeof define === 'function' && define.amd) { |
| define(L); |
| } |
| |
| // define Leaflet as a global L variable, saving the original L to restore later if needed |
| |
| L.noConflict = function () { |
| window.L = oldL; |
| return this; |
| }; |
| |
| window.L = L; |
| |
| |
| /* |
| * L.Util contains various utility functions used throughout Leaflet code. |
| */ |
| |
| L.Util = { |
| extend: function (dest) { // (Object[, Object, ...]) -> |
| var sources = Array.prototype.slice.call(arguments, 1), |
| i, j, len, src; |
| |
| for (j = 0, len = sources.length; j < len; j++) { |
| src = sources[j] || {}; |
| for (i in src) { |
| if (src.hasOwnProperty(i)) { |
| dest[i] = src[i]; |
| } |
| } |
| } |
| return dest; |
| }, |
| |
| bind: function (fn, obj) { // (Function, Object) -> Function |
| var args = arguments.length > 2 ? Array.prototype.slice.call(arguments, 2) : null; |
| return function () { |
| return fn.apply(obj, args || arguments); |
| }; |
| }, |
| |
| stamp: (function () { |
| var lastId = 0, |
| key = '_leaflet_id'; |
| return function (obj) { |
| obj[key] = obj[key] || ++lastId; |
| return obj[key]; |
| }; |
| }()), |
| |
| invokeEach: function (obj, method, context) { |
| var i, args; |
| |
| if (typeof obj === 'object') { |
| args = Array.prototype.slice.call(arguments, 3); |
| |
| for (i in obj) { |
| method.apply(context, [i, obj[i]].concat(args)); |
| } |
| return true; |
| } |
| |
| return false; |
| }, |
| |
| limitExecByInterval: function (fn, time, context) { |
| var lock, execOnUnlock; |
| |
| return function wrapperFn() { |
| var args = arguments; |
| |
| if (lock) { |
| execOnUnlock = true; |
| return; |
| } |
| |
| lock = true; |
| |
| setTimeout(function () { |
| lock = false; |
| |
| if (execOnUnlock) { |
| wrapperFn.apply(context, args); |
| execOnUnlock = false; |
| } |
| }, time); |
| |
| fn.apply(context, args); |
| }; |
| }, |
| |
| falseFn: function () { |
| return false; |
| }, |
| |
| formatNum: function (num, digits) { |
| var pow = Math.pow(10, digits || 5); |
| return Math.round(num * pow) / pow; |
| }, |
| |
| trim: function (str) { |
| return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, ''); |
| }, |
| |
| splitWords: function (str) { |
| return L.Util.trim(str).split(/\s+/); |
| }, |
| |
| setOptions: function (obj, options) { |
| obj.options = L.extend({}, obj.options, options); |
| return obj.options; |
| }, |
| |
| getParamString: function (obj, existingUrl, uppercase) { |
| var params = []; |
| for (var i in obj) { |
| params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i])); |
| } |
| return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&'); |
| }, |
| template: function (str, data) { |
| return str.replace(/\{ *([\w_]+) *\}/g, function (str, key) { |
| var value = data[key]; |
| if (value === undefined) { |
| throw new Error('No value provided for variable ' + str); |
| } else if (typeof value === 'function') { |
| value = value(data); |
| } |
| return value; |
| }); |
| }, |
| |
| isArray: Array.isArray || function (obj) { |
| return (Object.prototype.toString.call(obj) === '[object Array]'); |
| }, |
| |
| emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=' |
| }; |
| |
| (function () { |
| |
| // inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/ |
| |
| function getPrefixed(name) { |
| var i, fn, |
| prefixes = ['webkit', 'moz', 'o', 'ms']; |
| |
| for (i = 0; i < prefixes.length && !fn; i++) { |
| fn = window[prefixes[i] + name]; |
| } |
| |
| return fn; |
| } |
| |
| var lastTime = 0; |
| |
| function timeoutDefer(fn) { |
| var time = +new Date(), |
| timeToCall = Math.max(0, 16 - (time - lastTime)); |
| |
| lastTime = time + timeToCall; |
| return window.setTimeout(fn, timeToCall); |
| } |
| |
| var requestFn = window.requestAnimationFrame || |
| getPrefixed('RequestAnimationFrame') || timeoutDefer; |
| |
| var cancelFn = window.cancelAnimationFrame || |
| getPrefixed('CancelAnimationFrame') || |
| getPrefixed('CancelRequestAnimationFrame') || |
| function (id) { window.clearTimeout(id); }; |
| |
| |
| L.Util.requestAnimFrame = function (fn, context, immediate, element) { |
| fn = L.bind(fn, context); |
| |
| if (immediate && requestFn === timeoutDefer) { |
| fn(); |
| } else { |
| return requestFn.call(window, fn, element); |
| } |
| }; |
| |
| L.Util.cancelAnimFrame = function (id) { |
| if (id) { |
| cancelFn.call(window, id); |
| } |
| }; |
| |
| }()); |
| |
| // shortcuts for most used utility functions |
| L.extend = L.Util.extend; |
| L.bind = L.Util.bind; |
| L.stamp = L.Util.stamp; |
| L.setOptions = L.Util.setOptions; |
| |
| |
| /* |
| * L.Class powers the OOP facilities of the library. |
| * Thanks to John Resig and Dean Edwards for inspiration! |
| */ |
| |
| L.Class = function () {}; |
| |
| L.Class.extend = function (props) { |
| |
| // extended class with the new prototype |
| var NewClass = function () { |
| |
| // call the constructor |
| if (this.initialize) { |
| this.initialize.apply(this, arguments); |
| } |
| |
| // call all constructor hooks |
| if (this._initHooks) { |
| this.callInitHooks(); |
| } |
| }; |
| |
| // instantiate class without calling constructor |
| var F = function () {}; |
| F.prototype = this.prototype; |
| |
| var proto = new F(); |
| proto.constructor = NewClass; |
| |
| NewClass.prototype = proto; |
| |
| //inherit parent's statics |
| for (var i in this) { |
| if (this.hasOwnProperty(i) && i !== 'prototype') { |
| NewClass[i] = this[i]; |
| } |
| } |
| |
| // mix static properties into the class |
| if (props.statics) { |
| L.extend(NewClass, props.statics); |
| delete props.statics; |
| } |
| |
| // mix includes into the prototype |
| if (props.includes) { |
| L.Util.extend.apply(null, [proto].concat(props.includes)); |
| delete props.includes; |
| } |
| |
| // merge options |
| if (props.options && proto.options) { |
| props.options = L.extend({}, proto.options, props.options); |
| } |
| |
| // mix given properties into the prototype |
| L.extend(proto, props); |
| |
| proto._initHooks = []; |
| |
| var parent = this; |
| // jshint camelcase: false |
| NewClass.__super__ = parent.prototype; |
| |
| // add method for calling all hooks |
| proto.callInitHooks = function () { |
| |
| if (this._initHooksCalled) { return; } |
| |
| if (parent.prototype.callInitHooks) { |
| parent.prototype.callInitHooks.call(this); |
| } |
| |
| this._initHooksCalled = true; |
| |
| for (var i = 0, len = proto._initHooks.length; i < len; i++) { |
| proto._initHooks[i].call(this); |
| } |
| }; |
| |
| return NewClass; |
| }; |
| |
| |
| // method for adding properties to prototype |
| L.Class.include = function (props) { |
| L.extend(this.prototype, props); |
| }; |
| |
| // merge new default options to the Class |
| L.Class.mergeOptions = function (options) { |
| L.extend(this.prototype.options, options); |
| }; |
| |
| // add a constructor hook |
| L.Class.addInitHook = function (fn) { // (Function) || (String, args...) |
| var args = Array.prototype.slice.call(arguments, 1); |
| |
| var init = typeof fn === 'function' ? fn : function () { |
| this[fn].apply(this, args); |
| }; |
| |
| this.prototype._initHooks = this.prototype._initHooks || []; |
| this.prototype._initHooks.push(init); |
| }; |
| |
| |
| /* |
| * L.Mixin.Events is used to add custom events functionality to Leaflet classes. |
| */ |
| |
| var eventsKey = '_leaflet_events'; |
| |
| L.Mixin = {}; |
| |
| L.Mixin.Events = { |
| |
| addEventListener: function (types, fn, context) { // (String, Function[, Object]) or (Object[, Object]) |
| |
| // types can be a map of types/handlers |
| if (L.Util.invokeEach(types, this.addEventListener, this, fn, context)) { return this; } |
| |
| var events = this[eventsKey] = this[eventsKey] || {}, |
| contextId = context && context !== this && L.stamp(context), |
| i, len, event, type, indexKey, indexLenKey, typeIndex; |
| |
| // types can be a string of space-separated words |
| types = L.Util.splitWords(types); |
| |
| for (i = 0, len = types.length; i < len; i++) { |
| event = { |
| action: fn, |
| context: context || this |
| }; |
| type = types[i]; |
| |
| if (contextId) { |
| // store listeners of a particular context in a separate hash (if it has an id) |
| // gives a major performance boost when removing thousands of map layers |
| |
| indexKey = type + '_idx'; |
| indexLenKey = indexKey + '_len'; |
| |
| typeIndex = events[indexKey] = events[indexKey] || {}; |
| |
| if (!typeIndex[contextId]) { |
| typeIndex[contextId] = []; |
| |
| // keep track of the number of keys in the index to quickly check if it's empty |
| events[indexLenKey] = (events[indexLenKey] || 0) + 1; |
| } |
| |
| typeIndex[contextId].push(event); |
| |
| |
| } else { |
| events[type] = events[type] || []; |
| events[type].push(event); |
| } |
| } |
| |
| return this; |
| }, |
| |
| hasEventListeners: function (type) { // (String) -> Boolean |
| var events = this[eventsKey]; |
| return !!events && ((type in events && events[type].length > 0) || |
| (type + '_idx' in events && events[type + '_idx_len'] > 0)); |
| }, |
| |
| removeEventListener: function (types, fn, context) { // ([String, Function, Object]) or (Object[, Object]) |
| |
| if (!this[eventsKey]) { |
| return this; |
| } |
| |
| if (!types) { |
| return this.clearAllEventListeners(); |
| } |
| |
| if (L.Util.invokeEach(types, this.removeEventListener, this, fn, context)) { return this; } |
| |
| var events = this[eventsKey], |
| contextId = context && context !== this && L.stamp(context), |
| i, len, type, listeners, j, indexKey, indexLenKey, typeIndex, removed; |
| |
| types = L.Util.splitWords(types); |
| |
| for (i = 0, len = types.length; i < len; i++) { |
| type = types[i]; |
| indexKey = type + '_idx'; |
| indexLenKey = indexKey + '_len'; |
| |
| typeIndex = events[indexKey]; |
| |
| if (!fn) { |
| // clear all listeners for a type if function isn't specified |
| delete events[type]; |
| delete events[indexKey]; |
| delete events[indexLenKey]; |
| |
| } else { |
| listeners = contextId && typeIndex ? typeIndex[contextId] : events[type]; |
| |
| if (listeners) { |
| for (j = listeners.length - 1; j >= 0; j--) { |
| if ((listeners[j].action === fn) && (!context || (listeners[j].context === context))) { |
| removed = listeners.splice(j, 1); |
| // set the old action to a no-op, because it is possible |
| // that the listener is being iterated over as part of a dispatch |
| removed[0].action = L.Util.falseFn; |
| } |
| } |
| |
| if (context && typeIndex && (listeners.length === 0)) { |
| delete typeIndex[contextId]; |
| events[indexLenKey]--; |
| } |
| } |
| } |
| } |
| |
| return this; |
| }, |
| |
| clearAllEventListeners: function () { |
| delete this[eventsKey]; |
| return this; |
| }, |
| |
| fireEvent: function (type, data) { // (String[, Object]) |
| if (!this.hasEventListeners(type)) { |
| return this; |
| } |
| |
| var event = L.Util.extend({}, data, { type: type, target: this }); |
| |
| var events = this[eventsKey], |
| listeners, i, len, typeIndex, contextId; |
| |
| if (events[type]) { |
| // make sure adding/removing listeners inside other listeners won't cause infinite loop |
| listeners = events[type].slice(); |
| |
| for (i = 0, len = listeners.length; i < len; i++) { |
| listeners[i].action.call(listeners[i].context, event); |
| } |
| } |
| |
| // fire event for the context-indexed listeners as well |
| typeIndex = events[type + '_idx']; |
| |
| for (contextId in typeIndex) { |
| listeners = typeIndex[contextId].slice(); |
| |
| if (listeners) { |
| for (i = 0, len = listeners.length; i < len; i++) { |
| listeners[i].action.call(listeners[i].context, event); |
| } |
| } |
| } |
| |
| return this; |
| }, |
| |
| addOneTimeEventListener: function (types, fn, context) { |
| |
| if (L.Util.invokeEach(types, this.addOneTimeEventListener, this, fn, context)) { return this; } |
| |
| var handler = L.bind(function () { |
| this |
| .removeEventListener(types, fn, context) |
| .removeEventListener(types, handler, context); |
| }, this); |
| |
| return this |
| .addEventListener(types, fn, context) |
| .addEventListener(types, handler, context); |
| } |
| }; |
| |
| L.Mixin.Events.on = L.Mixin.Events.addEventListener; |
| L.Mixin.Events.off = L.Mixin.Events.removeEventListener; |
| L.Mixin.Events.once = L.Mixin.Events.addOneTimeEventListener; |
| L.Mixin.Events.fire = L.Mixin.Events.fireEvent; |
| |
| |
| /* |
| * L.Browser handles different browser and feature detections for internal Leaflet use. |
| */ |
| |
| (function () { |
| |
| var ie = 'ActiveXObject' in window, |
| ielt9 = ie && !document.addEventListener, |
| |
| // terrible browser detection to work around Safari / iOS / Android browser bugs |
| ua = navigator.userAgent.toLowerCase(), |
| webkit = ua.indexOf('webkit') !== -1, |
| chrome = ua.indexOf('chrome') !== -1, |
| phantomjs = ua.indexOf('phantom') !== -1, |
| android = ua.indexOf('android') !== -1, |
| android23 = ua.search('android [23]') !== -1, |
| gecko = ua.indexOf('gecko') !== -1, |
| |
| mobile = typeof orientation !== undefined + '', |
| msPointer = !window.PointerEvent && window.MSPointerEvent, |
| pointer = (window.PointerEvent && window.navigator.pointerEnabled) || |
| msPointer, |
| retina = ('devicePixelRatio' in window && window.devicePixelRatio > 1) || |
| ('matchMedia' in window && window.matchMedia('(min-resolution:144dpi)') && |
| window.matchMedia('(min-resolution:144dpi)').matches), |
| |
| doc = document.documentElement, |
| ie3d = ie && ('transition' in doc.style), |
| webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23, |
| gecko3d = 'MozPerspective' in doc.style, |
| opera3d = 'OTransition' in doc.style, |
| any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d) && !phantomjs; |
| |
| var touch = !window.L_NO_TOUCH && !phantomjs && (pointer || 'ontouchstart' in window || |
| (window.DocumentTouch && document instanceof window.DocumentTouch)); |
| |
| L.Browser = { |
| ie: ie, |
| ielt9: ielt9, |
| webkit: webkit, |
| gecko: gecko && !webkit && !window.opera && !ie, |
| |
| android: android, |
| android23: android23, |
| |
| chrome: chrome, |
| |
| ie3d: ie3d, |
| webkit3d: webkit3d, |
| gecko3d: gecko3d, |
| opera3d: opera3d, |
| any3d: any3d, |
| |
| mobile: mobile, |
| mobileWebkit: mobile && webkit, |
| mobileWebkit3d: mobile && webkit3d, |
| mobileOpera: mobile && window.opera, |
| |
| touch: touch, |
| msPointer: msPointer, |
| pointer: pointer, |
| |
| retina: retina |
| }; |
| |
| }()); |
| |
| |
| /* |
| * L.Point represents a point with x and y coordinates. |
| */ |
| |
| L.Point = function (/*Number*/ x, /*Number*/ y, /*Boolean*/ round) { |
| this.x = (round ? Math.round(x) : x); |
| this.y = (round ? Math.round(y) : y); |
| }; |
| |
| L.Point.prototype = { |
| |
| clone: function () { |
| return new L.Point(this.x, this.y); |
| }, |
| |
| // non-destructive, returns a new point |
| add: function (point) { |
| return this.clone()._add(L.point(point)); |
| }, |
| |
| // destructive, used directly for performance in situations where it's safe to modify existing point |
| _add: function (point) { |
| this.x += point.x; |
| this.y += point.y; |
| return this; |
| }, |
| |
| subtract: function (point) { |
| return this.clone()._subtract(L.point(point)); |
| }, |
| |
| _subtract: function (point) { |
| this.x -= point.x; |
| this.y -= point.y; |
| return this; |
| }, |
| |
| divideBy: function (num) { |
| return this.clone()._divideBy(num); |
| }, |
| |
| _divideBy: function (num) { |
| this.x /= num; |
| this.y /= num; |
| return this; |
| }, |
| |
| multiplyBy: function (num) { |
| return this.clone()._multiplyBy(num); |
| }, |
| |
| _multiplyBy: function (num) { |
| this.x *= num; |
| this.y *= num; |
| return this; |
| }, |
| |
| round: function () { |
| return this.clone()._round(); |
| }, |
| |
| _round: function () { |
| this.x = Math.round(this.x); |
| this.y = Math.round(this.y); |
| return this; |
| }, |
| |
| floor: function () { |
| return this.clone()._floor(); |
| }, |
| |
| _floor: function () { |
| this.x = Math.floor(this.x); |
| this.y = Math.floor(this.y); |
| return this; |
| }, |
| |
| distanceTo: function (point) { |
| point = L.point(point); |
| |
| var x = point.x - this.x, |
| y = point.y - this.y; |
| |
| return Math.sqrt(x * x + y * y); |
| }, |
| |
| equals: function (point) { |
| point = L.point(point); |
| |
| return point.x === this.x && |
| point.y === this.y; |
| }, |
| |
| contains: function (point) { |
| point = L.point(point); |
| |
| return Math.abs(point.x) <= Math.abs(this.x) && |
| Math.abs(point.y) <= Math.abs(this.y); |
| }, |
| |
| toString: function () { |
| return 'Point(' + |
| L.Util.formatNum(this.x) + ', ' + |
| L.Util.formatNum(this.y) + ')'; |
| } |
| }; |
| |
| L.point = function (x, y, round) { |
| if (x instanceof L.Point) { |
| return x; |
| } |
| if (L.Util.isArray(x)) { |
| return new L.Point(x[0], x[1]); |
| } |
| if (x === undefined || x === null) { |
| return x; |
| } |
| return new L.Point(x, y, round); |
| }; |
| |
| |
| /* |
| * L.Bounds represents a rectangular area on the screen in pixel coordinates. |
| */ |
| |
| L.Bounds = function (a, b) { //(Point, Point) or Point[] |
| if (!a) { return; } |
| |
| var points = b ? [a, b] : a; |
| |
| for (var i = 0, len = points.length; i < len; i++) { |
| this.extend(points[i]); |
| } |
| }; |
| |
| L.Bounds.prototype = { |
| // extend the bounds to contain the given point |
| extend: function (point) { // (Point) |
| point = L.point(point); |
| |
| if (!this.min && !this.max) { |
| this.min = point.clone(); |
| this.max = point.clone(); |
| } else { |
| this.min.x = Math.min(point.x, this.min.x); |
| this.max.x = Math.max(point.x, this.max.x); |
| this.min.y = Math.min(point.y, this.min.y); |
| this.max.y = Math.max(point.y, this.max.y); |
| } |
| return this; |
| }, |
| |
| getCenter: function (round) { // (Boolean) -> Point |
| return new L.Point( |
| (this.min.x + this.max.x) / 2, |
| (this.min.y + this.max.y) / 2, round); |
| }, |
| |
| getBottomLeft: function () { // -> Point |
| return new L.Point(this.min.x, this.max.y); |
| }, |
| |
| getTopRight: function () { // -> Point |
| return new L.Point(this.max.x, this.min.y); |
| }, |
| |
| getSize: function () { |
| return this.max.subtract(this.min); |
| }, |
| |
| contains: function (obj) { // (Bounds) or (Point) -> Boolean |
| var min, max; |
| |
| if (typeof obj[0] === 'number' || obj instanceof L.Point) { |
| obj = L.point(obj); |
| } else { |
| obj = L.bounds(obj); |
| } |
| |
| if (obj instanceof L.Bounds) { |
| min = obj.min; |
| max = obj.max; |
| } else { |
| min = max = obj; |
| } |
| |
| return (min.x >= this.min.x) && |
| (max.x <= this.max.x) && |
| (min.y >= this.min.y) && |
| (max.y <= this.max.y); |
| }, |
| |
| intersects: function (bounds) { // (Bounds) -> Boolean |
| bounds = L.bounds(bounds); |
| |
| var min = this.min, |
| max = this.max, |
| min2 = bounds.min, |
| max2 = bounds.max, |
| xIntersects = (max2.x >= min.x) && (min2.x <= max.x), |
| yIntersects = (max2.y >= min.y) && (min2.y <= max.y); |
| |
| return xIntersects && yIntersects; |
| }, |
| |
| isValid: function () { |
| return !!(this.min && this.max); |
| } |
| }; |
| |
| L.bounds = function (a, b) { // (Bounds) or (Point, Point) or (Point[]) |
| if (!a || a instanceof L.Bounds) { |
| return a; |
| } |
| return new L.Bounds(a, b); |
| }; |
| |
| |
| /* |
| * L.Transformation is an utility class to perform simple point transformations through a 2d-matrix. |
| */ |
| |
| L.Transformation = function (a, b, c, d) { |
| this._a = a; |
| this._b = b; |
| this._c = c; |
| this._d = d; |
| }; |
| |
| L.Transformation.prototype = { |
| transform: function (point, scale) { // (Point, Number) -> Point |
| return this._transform(point.clone(), scale); |
| }, |
| |
| // destructive transform (faster) |
| _transform: function (point, scale) { |
| scale = scale || 1; |
| point.x = scale * (this._a * point.x + this._b); |
| point.y = scale * (this._c * point.y + this._d); |
| return point; |
| }, |
| |
| untransform: function (point, scale) { |
| scale = scale || 1; |
| return new L.Point( |
| (point.x / scale - this._b) / this._a, |
| (point.y / scale - this._d) / this._c); |
| } |
| }; |
| |
| |
| /* |
| * L.DomUtil contains various utility functions for working with DOM. |
| */ |
| |
| L.DomUtil = { |
| get: function (id) { |
| return (typeof id === 'string' ? document.getElementById(id) : id); |
| }, |
| |
| getStyle: function (el, style) { |
| |
| var value = el.style[style]; |
| |
| if (!value && el.currentStyle) { |
| value = el.currentStyle[style]; |
| } |
| |
| if ((!value || value === 'auto') && document.defaultView) { |
| var css = document.defaultView.getComputedStyle(el, null); |
| value = css ? css[style] : null; |
| } |
| |
| return value === 'auto' ? null : value; |
| }, |
| |
| getViewportOffset: function (element) { |
| |
| var top = 0, |
| left = 0, |
| el = element, |
| docBody = document.body, |
| docEl = document.documentElement, |
| pos; |
| |
| do { |
| top += el.offsetTop || 0; |
| left += el.offsetLeft || 0; |
| |
| //add borders |
| top += parseInt(L.DomUtil.getStyle(el, 'borderTopWidth'), 10) || 0; |
| left += parseInt(L.DomUtil.getStyle(el, 'borderLeftWidth'), 10) || 0; |
| |
| pos = L.DomUtil.getStyle(el, 'position'); |
| |
| if (el.offsetParent === docBody && pos === 'absolute') { break; } |
| |
| if (pos === 'fixed') { |
| top += docBody.scrollTop || docEl.scrollTop || 0; |
| left += docBody.scrollLeft || docEl.scrollLeft || 0; |
| break; |
| } |
| |
| if (pos === 'relative' && !el.offsetLeft) { |
| var width = L.DomUtil.getStyle(el, 'width'), |
| maxWidth = L.DomUtil.getStyle(el, 'max-width'), |
| r = el.getBoundingClientRect(); |
| |
| if (width !== 'none' || maxWidth !== 'none') { |
| left += r.left + el.clientLeft; |
| } |
| |
| //calculate full y offset since we're breaking out of the loop |
| top += r.top + (docBody.scrollTop || docEl.scrollTop || 0); |
| |
| break; |
| } |
| |
| el = el.offsetParent; |
| |
| } while (el); |
| |
| el = element; |
| |
| do { |
| if (el === docBody) { break; } |
| |
| top -= el.scrollTop || 0; |
| left -= el.scrollLeft || 0; |
| |
| el = el.parentNode; |
| } while (el); |
| |
| return new L.Point(left, top); |
| }, |
| |
| documentIsLtr: function () { |
| if (!L.DomUtil._docIsLtrCached) { |
| L.DomUtil._docIsLtrCached = true; |
| L.DomUtil._docIsLtr = L.DomUtil.getStyle(document.body, 'direction') === 'ltr'; |
| } |
| return L.DomUtil._docIsLtr; |
| }, |
| |
| create: function (tagName, className, container) { |
| |
| var el = document.createElement(tagName); |
| el.className = className; |
| |
| if (container) { |
| container.appendChild(el); |
| } |
| |
| return el; |
| }, |
| |
| hasClass: function (el, name) { |
| if (el.classList !== undefined) { |
| return el.classList.contains(name); |
| } |
| var className = L.DomUtil._getClass(el); |
| return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className); |
| }, |
| |
| addClass: function (el, name) { |
| if (el.classList !== undefined) { |
| var classes = L.Util.splitWords(name); |
| for (var i = 0, len = classes.length; i < len; i++) { |
| el.classList.add(classes[i]); |
| } |
| } else if (!L.DomUtil.hasClass(el, name)) { |
| var className = L.DomUtil._getClass(el); |
| L.DomUtil._setClass(el, (className ? className + ' ' : '') + name); |
| } |
| }, |
| |
| removeClass: function (el, name) { |
| if (el.classList !== undefined) { |
| el.classList.remove(name); |
| } else { |
| L.DomUtil._setClass(el, L.Util.trim((' ' + L.DomUtil._getClass(el) + ' ').replace(' ' + name + ' ', ' '))); |
| } |
| }, |
| |
| _setClass: function (el, name) { |
| if (el.className.baseVal === undefined) { |
| el.className = name; |
| } else { |
| // in case of SVG element |
| el.className.baseVal = name; |
| } |
| }, |
| |
| _getClass: function (el) { |
| return el.className.baseVal === undefined ? el.className : el.className.baseVal; |
| }, |
| |
| setOpacity: function (el, value) { |
| |
| if ('opacity' in el.style) { |
| el.style.opacity = value; |
| |
| } else if ('filter' in el.style) { |
| |
| var filter = false, |
| filterName = 'DXImageTransform.Microsoft.Alpha'; |
| |
| // filters collection throws an error if we try to retrieve a filter that doesn't exist |
| try { |
| filter = el.filters.item(filterName); |
| } catch (e) { |
| // don't set opacity to 1 if we haven't already set an opacity, |
| // it isn't needed and breaks transparent pngs. |
| if (value === 1) { return; } |
| } |
| |
| value = Math.round(value * 100); |
| |
| if (filter) { |
| filter.Enabled = (value !== 100); |
| filter.Opacity = value; |
| } else { |
| el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')'; |
| } |
| } |
| }, |
| |
| testProp: function (props) { |
| |
| var style = document.documentElement.style; |
| |
| for (var i = 0; i < props.length; i++) { |
| if (props[i] in style) { |
| return props[i]; |
| } |
| } |
| return false; |
| }, |
| |
| getTranslateString: function (point) { |
| // on WebKit browsers (Chrome/Safari/iOS Safari/Android) using translate3d instead of translate |
| // makes animation smoother as it ensures HW accel is used. Firefox 13 doesn't care |
| // (same speed either way), Opera 12 doesn't support translate3d |
| |
| var is3d = L.Browser.webkit3d, |
| open = 'translate' + (is3d ? '3d' : '') + '(', |
| close = (is3d ? ',0' : '') + ')'; |
| |
| return open + point.x + 'px,' + point.y + 'px' + close; |
| }, |
| |
| getScaleString: function (scale, origin) { |
| |
| var preTranslateStr = L.DomUtil.getTranslateString(origin.add(origin.multiplyBy(-1 * scale))), |
| scaleStr = ' scale(' + scale + ') '; |
| |
| return preTranslateStr + scaleStr; |
| }, |
| |
| setPosition: function (el, point, disable3D) { // (HTMLElement, Point[, Boolean]) |
| |
| // jshint camelcase: false |
| el._leaflet_pos = point; |
| |
| if (!disable3D && L.Browser.any3d) { |
| el.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString(point); |
| } else { |
| el.style.left = point.x + 'px'; |
| el.style.top = point.y + 'px'; |
| } |
| }, |
| |
| getPosition: function (el) { |
| // this method is only used for elements previously positioned using setPosition, |
| // so it's safe to cache the position for performance |
| |
| // jshint camelcase: false |
| return el._leaflet_pos; |
| } |
| }; |
| |
| |
| // prefix style property names |
| |
| L.DomUtil.TRANSFORM = L.DomUtil.testProp( |
| ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']); |
| |
| // webkitTransition comes first because some browser versions that drop vendor prefix don't do |
| // the same for the transitionend event, in particular the Android 4.1 stock browser |
| |
| L.DomUtil.TRANSITION = L.DomUtil.testProp( |
| ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']); |
| |
| L.DomUtil.TRANSITION_END = |
| L.DomUtil.TRANSITION === 'webkitTransition' || L.DomUtil.TRANSITION === 'OTransition' ? |
| L.DomUtil.TRANSITION + 'End' : 'transitionend'; |
| |
| (function () { |
| if ('onselectstart' in document) { |
| L.extend(L.DomUtil, { |
| disableTextSelection: function () { |
| L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault); |
| }, |
| |
| enableTextSelection: function () { |
| L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault); |
| } |
| }); |
| } else { |
| var userSelectProperty = L.DomUtil.testProp( |
| ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']); |
| |
| L.extend(L.DomUtil, { |
| disableTextSelection: function () { |
| if (userSelectProperty) { |
| var style = document.documentElement.style; |
| this._userSelect = style[userSelectProperty]; |
| style[userSelectProperty] = 'none'; |
| } |
| }, |
| |
| enableTextSelection: function () { |
| if (userSelectProperty) { |
| document.documentElement.style[userSelectProperty] = this._userSelect; |
| delete this._userSelect; |
| } |
| } |
| }); |
| } |
| |
| L.extend(L.DomUtil, { |
| disableImageDrag: function () { |
| L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault); |
| }, |
| |
| enableImageDrag: function () { |
| L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault); |
| } |
| }); |
| })(); |
| |
| |
| /* |
| * L.LatLng represents a geographical point with latitude and longitude coordinates. |
| */ |
| |
| L.LatLng = function (lat, lng, alt) { // (Number, Number, Number) |
| lat = parseFloat(lat); |
| lng = parseFloat(lng); |
| |
| if (isNaN(lat) || isNaN(lng)) { |
| throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')'); |
| } |
| |
| this.lat = lat; |
| this.lng = lng; |
| |
| if (alt !== undefined) { |
| this.alt = parseFloat(alt); |
| } |
| }; |
| |
| L.extend(L.LatLng, { |
| DEG_TO_RAD: Math.PI / 180, |
| RAD_TO_DEG: 180 / Math.PI, |
| MAX_MARGIN: 1.0E-9 // max margin of error for the "equals" check |
| }); |
| |
| L.LatLng.prototype = { |
| equals: function (obj) { // (LatLng) -> Boolean |
| if (!obj) { return false; } |
| |
| obj = L.latLng(obj); |
| |
| var margin = Math.max( |
| Math.abs(this.lat - obj.lat), |
| Math.abs(this.lng - obj.lng)); |
| |
| return margin <= L.LatLng.MAX_MARGIN; |
| }, |
| |
| toString: function (precision) { // (Number) -> String |
| return 'LatLng(' + |
| L.Util.formatNum(this.lat, precision) + ', ' + |
| L.Util.formatNum(this.lng, precision) + ')'; |
| }, |
| |
| // Haversine distance formula, see http://en.wikipedia.org/wiki/Haversine_formula |
| // TODO move to projection code, LatLng shouldn't know about Earth |
| distanceTo: function (other) { // (LatLng) -> Number |
| other = L.latLng(other); |
| |
| var R = 6378137, // earth radius in meters |
| d2r = L.LatLng.DEG_TO_RAD, |
| dLat = (other.lat - this.lat) * d2r, |
| dLon = (other.lng - this.lng) * d2r, |
| lat1 = this.lat * d2r, |
| lat2 = other.lat * d2r, |
| sin1 = Math.sin(dLat / 2), |
| sin2 = Math.sin(dLon / 2); |
| |
| var a = sin1 * sin1 + sin2 * sin2 * Math.cos(lat1) * Math.cos(lat2); |
| |
| return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a)); |
| }, |
| |
| wrap: function (a, b) { // (Number, Number) -> LatLng |
| var lng = this.lng; |
| |
| a = a || -180; |
| b = b || 180; |
| |
| lng = (lng + b) % (b - a) + (lng < a || lng === b ? b : a); |
| |
| return new L.LatLng(this.lat, lng); |
| } |
| }; |
| |
| L.latLng = function (a, b) { // (LatLng) or ([Number, Number]) or (Number, Number) |
| if (a instanceof L.LatLng) { |
| return a; |
| } |
| if (L.Util.isArray(a)) { |
| if (typeof a[0] === 'number' || typeof a[0] === 'string') { |
| return new L.LatLng(a[0], a[1], a[2]); |
| } else { |
| return null; |
| } |
| } |
| if (a === undefined || a === null) { |
| return a; |
| } |
| if (typeof a === 'object' && 'lat' in a) { |
| return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon); |
| } |
| if (b === undefined) { |
| return null; |
| } |
| return new L.LatLng(a, b); |
| }; |
| |
| |
| |
| /* |
| * L.LatLngBounds represents a rectangular area on the map in geographical coordinates. |
| */ |
| |
| L.LatLngBounds = function (southWest, northEast) { // (LatLng, LatLng) or (LatLng[]) |
| if (!southWest) { return; } |
| |
| var latlngs = northEast ? [southWest, northEast] : southWest; |
| |
| for (var i = 0, len = latlngs.length; i < len; i++) { |
| this.extend(latlngs[i]); |
| } |
| }; |
| |
| L.LatLngBounds.prototype = { |
| // extend the bounds to contain the given point or bounds |
| extend: function (obj) { // (LatLng) or (LatLngBounds) |
| if (!obj) { return this; } |
| |
| var latLng = L.latLng(obj); |
| if (latLng !== null) { |
| obj = latLng; |
| } else { |
| obj = L.latLngBounds(obj); |
| } |
| |
| if (obj instanceof L.LatLng) { |
| if (!this._southWest && !this._northEast) { |
| this._southWest = new L.LatLng(obj.lat, obj.lng); |
| this._northEast = new L.LatLng(obj.lat, obj.lng); |
| } else { |
| this._southWest.lat = Math.min(obj.lat, this._southWest.lat); |
| this._southWest.lng = Math.min(obj.lng, this._southWest.lng); |
| |
| this._northEast.lat = Math.max(obj.lat, this._northEast.lat); |
| this._northEast.lng = Math.max(obj.lng, this._northEast.lng); |
| } |
| } else if (obj instanceof L.LatLngBounds) { |
| this.extend(obj._southWest); |
| this.extend(obj._northEast); |
| } |
| return this; |
| }, |
| |
| // extend the bounds by a percentage |
| pad: function (bufferRatio) { // (Number) -> LatLngBounds |
| var sw = this._southWest, |
| ne = this._northEast, |
| heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio, |
| widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio; |
| |
| return new L.LatLngBounds( |
| new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer), |
| new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer)); |
| }, |
| |
| getCenter: function () { // -> LatLng |
| return new L.LatLng( |
| (this._southWest.lat + this._northEast.lat) / 2, |
| (this._southWest.lng + this._northEast.lng) / 2); |
| }, |
| |
| getSouthWest: function () { |
| return this._southWest; |
| }, |
| |
| getNorthEast: function () { |
| return this._northEast; |
| }, |
| |
| getNorthWest: function () { |
| return new L.LatLng(this.getNorth(), this.getWest()); |
| }, |
| |
| getSouthEast: function () { |
| return new L.LatLng(this.getSouth(), this.getEast()); |
| }, |
| |
| getWest: function () { |
| return this._southWest.lng; |
| }, |
| |
| getSouth: function () { |
| return this._southWest.lat; |
| }, |
| |
| getEast: function () { |
| return this._northEast.lng; |
| }, |
| |
| getNorth: function () { |
| return this._northEast.lat; |
| }, |
| |
| contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean |
| if (typeof obj[0] === 'number' || obj instanceof L.LatLng) { |
| obj = L.latLng(obj); |
| } else { |
| obj = L.latLngBounds(obj); |
| } |
| |
| var sw = this._southWest, |
| ne = this._northEast, |
| sw2, ne2; |
| |
| if (obj instanceof L.LatLngBounds) { |
| sw2 = obj.getSouthWest(); |
| ne2 = obj.getNorthEast(); |
| } else { |
| sw2 = ne2 = obj; |
| } |
| |
| return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) && |
| (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng); |
| }, |
| |
| intersects: function (bounds) { // (LatLngBounds) |
| bounds = L.latLngBounds(bounds); |
| |
| var sw = this._southWest, |
| ne = this._northEast, |
| sw2 = bounds.getSouthWest(), |
| ne2 = bounds.getNorthEast(), |
| |
| latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat), |
| lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng); |
| |
| return latIntersects && lngIntersects; |
| }, |
| |
| toBBoxString: function () { |
| return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(','); |
| }, |
| |
| equals: function (bounds) { // (LatLngBounds) |
| if (!bounds) { return false; } |
| |
| bounds = L.latLngBounds(bounds); |
| |
| return this._southWest.equals(bounds.getSouthWest()) && |
| this._northEast.equals(bounds.getNorthEast()); |
| }, |
| |
| isValid: function () { |
| return !!(this._southWest && this._northEast); |
| } |
| }; |
| |
| //TODO International date line? |
| |
| L.latLngBounds = function (a, b) { // (LatLngBounds) or (LatLng, LatLng) |
| if (!a || a instanceof L.LatLngBounds) { |
| return a; |
| } |
| return new L.LatLngBounds(a, b); |
| }; |
| |
| |
| /* |
| * L.Projection contains various geographical projections used by CRS classes. |
| */ |
| |
| L.Projection = {}; |
| |
| |
| /* |
| * Spherical Mercator is the most popular map projection, used by EPSG:3857 CRS used by default. |
| */ |
| |
| L.Projection.SphericalMercator = { |
| MAX_LATITUDE: 85.0511287798, |
| |
| project: function (latlng) { // (LatLng) -> Point |
| var d = L.LatLng.DEG_TO_RAD, |
| max = this.MAX_LATITUDE, |
| lat = Math.max(Math.min(max, latlng.lat), -max), |
| x = latlng.lng * d, |
| y = lat * d; |
| |
| y = Math.log(Math.tan((Math.PI / 4) + (y / 2))); |
| |
| return new L.Point(x, y); |
| }, |
| |
| unproject: function (point) { // (Point, Boolean) -> LatLng |
| var d = L.LatLng.RAD_TO_DEG, |
| lng = point.x * d, |
| lat = (2 * Math.atan(Math.exp(point.y)) - (Math.PI / 2)) * d; |
| |
| return new L.LatLng(lat, lng); |
| } |
| }; |
| |
| |
| /* |
| * Simple equirectangular (Plate Carree) projection, used by CRS like EPSG:4326 and Simple. |
| */ |
| |
| L.Projection.LonLat = { |
| project: function (latlng) { |
| return new L.Point(latlng.lng, latlng.lat); |
| }, |
| |
| unproject: function (point) { |
| return new L.LatLng(point.y, point.x); |
| } |
| }; |
| |
| |
| /* |
| * L.CRS is a base object for all defined CRS (Coordinate Reference Systems) in Leaflet. |
| */ |
| |
| L.CRS = { |
| latLngToPoint: function (latlng, zoom) { // (LatLng, Number) -> Point |
| var projectedPoint = this.projection.project(latlng), |
| scale = this.scale(zoom); |
| |
| return this.transformation._transform(projectedPoint, scale); |
| }, |
| |
| pointToLatLng: function (point, zoom) { // (Point, Number[, Boolean]) -> LatLng |
| var scale = this.scale(zoom), |
| untransformedPoint = this.transformation.untransform(point, scale); |
| |
| return this.projection.unproject(untransformedPoint); |
| }, |
| |
| project: function (latlng) { |
| return this.projection.project(latlng); |
| }, |
| |
| scale: function (zoom) { |
| return 256 * Math.pow(2, zoom); |
| }, |
| |
| getSize: function (zoom) { |
| var s = this.scale(zoom); |
| return L.point(s, s); |
| } |
| }; |
| |
| |
| /* |
| * A simple CRS that can be used for flat non-Earth maps like panoramas or game maps. |
| */ |
| |
| L.CRS.Simple = L.extend({}, L.CRS, { |
| projection: L.Projection.LonLat, |
| transformation: new L.Transformation(1, 0, -1, 0), |
| |
| scale: function (zoom) { |
| return Math.pow(2, zoom); |
| } |
| }); |
| |
| |
| /* |
| * L.CRS.EPSG3857 (Spherical Mercator) is the most common CRS for web mapping |
| * and is used by Leaflet by default. |
| */ |
| |
| L.CRS.EPSG3857 = L.extend({}, L.CRS, { |
| code: 'EPSG:3857', |
| |
| projection: L.Projection.SphericalMercator, |
| transformation: new L.Transformation(0.5 / Math.PI, 0.5, -0.5 / Math.PI, 0.5), |
| |
| project: function (latlng) { // (LatLng) -> Point |
| var projectedPoint = this.projection.project(latlng), |
| earthRadius = 6378137; |
| return projectedPoint.multiplyBy(earthRadius); |
| } |
| }); |
| |
| L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, { |
| code: 'EPSG:900913' |
| }); |
| |
| |
| /* |
| * L.CRS.EPSG4326 is a CRS popular among advanced GIS specialists. |
| */ |
| |
| L.CRS.EPSG4326 = L.extend({}, L.CRS, { |
| code: 'EPSG:4326', |
| |
| projection: L.Projection.LonLat, |
| transformation: new L.Transformation(1 / 360, 0.5, -1 / 360, 0.5) |
| }); |
| |
| |
| /* |
| * L.Map is the central class of the API - it is used to create a map. |
| */ |
| |
| L.Map = L.Class.extend({ |
| |
| includes: L.Mixin.Events, |
| |
| options: { |
| crs: L.CRS.EPSG3857, |
| |
| /* |
| center: LatLng, |
| zoom: Number, |
| layers: Array, |
| */ |
| |
| fadeAnimation: L.DomUtil.TRANSITION && !L.Browser.android23, |
| trackResize: true, |
| markerZoomAnimation: L.DomUtil.TRANSITION && L.Browser.any3d |
| }, |
| |
| initialize: function (id, options) { // (HTMLElement or String, Object) |
| options = L.setOptions(this, options); |
| |
| |
| this._initContainer(id); |
| this._initLayout(); |
| |
| // hack for https://github.com/Leaflet/Leaflet/issues/1980 |
| this._onResize = L.bind(this._onResize, this); |
| |
| this._initEvents(); |
| |
| if (options.maxBounds) { |
| this.setMaxBounds(options.maxBounds); |
| } |
| |
| if (options.center && options.zoom !== undefined) { |
| this.setView(L.latLng(options.center), options.zoom, {reset: true}); |
| } |
| |
| this._handlers = []; |
| |
| this._layers = {}; |
| this._zoomBoundLayers = {}; |
| this._tileLayersNum = 0; |
| |
| this.callInitHooks(); |
| |
| this._addLayers(options.layers); |
| }, |
| |
| |
| // public methods that modify map state |
| |
| // replaced by animation-powered implementation in Map.PanAnimation.js |
| setView: function (center, zoom) { |
| zoom = zoom === undefined ? this.getZoom() : zoom; |
| this._resetView(L.latLng(center), this._limitZoom(zoom)); |
| return this; |
| }, |
| |
| setZoom: function (zoom, options) { |
| if (!this._loaded) { |
| this._zoom = this._limitZoom(zoom); |
| return this; |
| } |
| return this.setView(this.getCenter(), zoom, {zoom: options}); |
| }, |
| |
| zoomIn: function (delta, options) { |
| return this.setZoom(this._zoom + (delta || 1), options); |
| }, |
| |
| zoomOut: function (delta, options) { |
| return this.setZoom(this._zoom - (delta || 1), options); |
| }, |
| |
| setZoomAround: function (latlng, zoom, options) { |
| var scale = this.getZoomScale(zoom), |
| viewHalf = this.getSize().divideBy(2), |
| containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng), |
| |
| centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale), |
| newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset)); |
| |
| return this.setView(newCenter, zoom, {zoom: options}); |
| }, |
| |
| fitBounds: function (bounds, options) { |
| |
| options = options || {}; |
| bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds); |
| |
| var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]), |
| paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]), |
| |
| zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR)); |
| |
| zoom = (options.maxZoom) ? Math.min(options.maxZoom, zoom) : zoom; |
| |
| var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2), |
| |
| swPoint = this.project(bounds.getSouthWest(), zoom), |
| nePoint = this.project(bounds.getNorthEast(), zoom), |
| center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom); |
| |
| return this.setView(center, zoom, options); |
| }, |
| |
| fitWorld: function (options) { |
| return this.fitBounds([[-90, -180], [90, 180]], options); |
| }, |
| |
| panTo: function (center, options) { // (LatLng) |
| return this.setView(center, this._zoom, {pan: options}); |
| }, |
| |
| panBy: function (offset) { // (Point) |
| // replaced with animated panBy in Map.PanAnimation.js |
| this.fire('movestart'); |
| |
| this._rawPanBy(L.point(offset)); |
| |
| this.fire('move'); |
| return this.fire('moveend'); |
| }, |
| |
| setMaxBounds: function (bounds) { |
| bounds = L.latLngBounds(bounds); |
| |
| this.options.maxBounds = bounds; |
| |
| if (!bounds) { |
| return this.off('moveend', this._panInsideMaxBounds, this); |
| } |
| |
| if (this._loaded) { |
| this._panInsideMaxBounds(); |
| } |
| |
| return this.on('moveend', this._panInsideMaxBounds, this); |
| }, |
| |
| panInsideBounds: function (bounds, options) { |
| var center = this.getCenter(), |
| newCenter = this._limitCenter(center, this._zoom, bounds); |
| |
| if (center.equals(newCenter)) { return this; } |
| |
| return this.panTo(newCenter, options); |
| }, |
| |
| addLayer: function (layer) { |
| // TODO method is too big, refactor |
| |
| var id = L.stamp(layer); |
| |
| if (this._layers[id]) { return this; } |
| |
| this._layers[id] = layer; |
| |
| // TODO getMaxZoom, getMinZoom in ILayer (instead of options) |
| if (layer.options && (!isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom))) { |
| this._zoomBoundLayers[id] = layer; |
| this._updateZoomLevels(); |
| } |
| |
| // TODO looks ugly, refactor!!! |
| if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) { |
| this._tileLayersNum++; |
| this._tileLayersToLoad++; |
| layer.on('load', this._onTileLayerLoad, this); |
| } |
| |
| if (this._loaded) { |
| this._layerAdd(layer); |
| } |
| |
| return this; |
| }, |
| |
| removeLayer: function (layer) { |
| var id = L.stamp(layer); |
| |
| if (!this._layers[id]) { return this; } |
| |
| if (this._loaded) { |
| layer.onRemove(this); |
| } |
| |
| delete this._layers[id]; |
| |
| if (this._loaded) { |
| this.fire('layerremove', {layer: layer}); |
| } |
| |
| if (this._zoomBoundLayers[id]) { |
| delete this._zoomBoundLayers[id]; |
| this._updateZoomLevels(); |
| } |
| |
| // TODO looks ugly, refactor |
| if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) { |
| this._tileLayersNum--; |
| this._tileLayersToLoad--; |
| layer.off('load', this._onTileLayerLoad, this); |
| } |
| |
| return this; |
| }, |
| |
| hasLayer: function (layer) { |
| if (!layer) { return false; } |
| |
| return (L.stamp(layer) in this._layers); |
| }, |
| |
| eachLayer: function (method, context) { |
| for (var i in this._layers) { |
| method.call(context, this._layers[i]); |
| } |
| return this; |
| }, |
| |
| invalidateSize: function (options) { |
| if (!this._loaded) { return this; } |
| |
| options = L.extend({ |
| animate: false, |
| pan: true |
| }, options === true ? {animate: true} : options); |
| |
| var oldSize = this.getSize(); |
| this._sizeChanged = true; |
| this._initialCenter = null; |
| |
| var newSize = this.getSize(), |
| oldCenter = oldSize.divideBy(2).round(), |
| newCenter = newSize.divideBy(2).round(), |
| offset = oldCenter.subtract(newCenter); |
| |
| if (!offset.x && !offset.y) { return this; } |
| |
| if (options.animate && options.pan) { |
| this.panBy(offset); |
| |
| } else { |
| if (options.pan) { |
| this._rawPanBy(offset); |
| } |
| |
| this.fire('move'); |
| |
| if (options.debounceMoveend) { |
| clearTimeout(this._sizeTimer); |
| this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200); |
| } else { |
| this.fire('moveend'); |
| } |
| } |
| |
| return this.fire('resize', { |
| oldSize: oldSize, |
| newSize: newSize |
| }); |
| }, |
| |
| // TODO handler.addTo |
| addHandler: function (name, HandlerClass) { |
| if (!HandlerClass) { return this; } |
| |
| var handler = this[name] = new HandlerClass(this); |
| |
| this._handlers.push(handler); |
| |
| if (this.options[name]) { |
| handler.enable(); |
| } |
| |
| return this; |
| }, |
| |
| remove: function () { |
| if (this._loaded) { |
| this.fire('unload'); |
| } |
| |
| this._initEvents('off'); |
| |
| try { |
| // throws error in IE6-8 |
| delete this._container._leaflet; |
| } catch (e) { |
| this._container._leaflet = undefined; |
| } |
| |
| this._clearPanes(); |
| if (this._clearControlPos) { |
| this._clearControlPos(); |
| } |
| |
| this._clearHandlers(); |
| |
| return this; |
| }, |
| |
| |
| // public methods for getting map state |
| |
| getCenter: function () { // (Boolean) -> LatLng |
| this._checkIfLoaded(); |
| |
| if (this._initialCenter && !this._moved()) { |
| return this._initialCenter; |
| } |
| return this.layerPointToLatLng(this._getCenterLayerPoint()); |
| }, |
| |
| getZoom: function () { |
| return this._zoom; |
| }, |
| |
| getBounds: function () { |
| var bounds = this.getPixelBounds(), |
| sw = this.unproject(bounds.getBottomLeft()), |
| ne = this.unproject(bounds.getTopRight()); |
| |
| return new L.LatLngBounds(sw, ne); |
| }, |
| |
| getMinZoom: function () { |
| return this.options.minZoom === undefined ? |
| (this._layersMinZoom === undefined ? 0 : this._layersMinZoom) : |
| this.options.minZoom; |
| }, |
| |
| getMaxZoom: function () { |
| return this.options.maxZoom === undefined ? |
| (this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) : |
| this.options.maxZoom; |
| }, |
| |
| getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number |
| bounds = L.latLngBounds(bounds); |
| |
| var zoom = this.getMinZoom() - (inside ? 1 : 0), |
| maxZoom = this.getMaxZoom(), |
| size = this.getSize(), |
| |
| nw = bounds.getNorthWest(), |
| se = bounds.getSouthEast(), |
| |
| zoomNotFound = true, |
| boundsSize; |
| |
| padding = L.point(padding || [0, 0]); |
| |
| do { |
| zoom++; |
| boundsSize = this.project(se, zoom).subtract(this.project(nw, zoom)).add(padding); |
| zoomNotFound = !inside ? size.contains(boundsSize) : boundsSize.x < size.x || boundsSize.y < size.y; |
| |
| } while (zoomNotFound && zoom <= maxZoom); |
| |
| if (zoomNotFound && inside) { |
| return null; |
| } |
| |
| return inside ? zoom : zoom - 1; |
| }, |
| |
| getSize: function () { |
| if (!this._size || this._sizeChanged) { |
| this._size = new L.Point( |
| this._container.clientWidth, |
| this._container.clientHeight); |
| |
| this._sizeChanged = false; |
| } |
| return this._size.clone(); |
| }, |
| |
| getPixelBounds: function () { |
| var topLeftPoint = this._getTopLeftPoint(); |
| return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize())); |
| }, |
| |
| getPixelOrigin: function () { |
| this._checkIfLoaded(); |
| return this._initialTopLeftPoint; |
| }, |
| |
| getPanes: function () { |
| return this._panes; |
| }, |
| |
| getContainer: function () { |
| return this._container; |
| }, |
| |
| |
| // TODO replace with universal implementation after refactoring projections |
| |
| getZoomScale: function (toZoom) { |
| var crs = this.options.crs; |
| return crs.scale(toZoom) / crs.scale(this._zoom); |
| }, |
| |
| getScaleZoom: function (scale) { |
| return this._zoom + (Math.log(scale) / Math.LN2); |
| }, |
| |
| |
| // conversion methods |
| |
| project: function (latlng, zoom) { // (LatLng[, Number]) -> Point |
| zoom = zoom === undefined ? this._zoom : zoom; |
| return this.options.crs.latLngToPoint(L.latLng(latlng), zoom); |
| }, |
| |
| unproject: function (point, zoom) { // (Point[, Number]) -> LatLng |
| zoom = zoom === undefined ? this._zoom : zoom; |
| return this.options.crs.pointToLatLng(L.point(point), zoom); |
| }, |
| |
| layerPointToLatLng: function (point) { // (Point) |
| var projectedPoint = L.point(point).add(this.getPixelOrigin()); |
| return this.unproject(projectedPoint); |
| }, |
| |
| latLngToLayerPoint: function (latlng) { // (LatLng) |
| var projectedPoint = this.project(L.latLng(latlng))._round(); |
| return projectedPoint._subtract(this.getPixelOrigin()); |
| }, |
| |
| containerPointToLayerPoint: function (point) { // (Point) |
| return L.point(point).subtract(this._getMapPanePos()); |
| }, |
| |
| layerPointToContainerPoint: function (point) { // (Point) |
| return L.point(point).add(this._getMapPanePos()); |
| }, |
| |
| containerPointToLatLng: function (point) { |
| var layerPoint = this.containerPointToLayerPoint(L.point(point)); |
| return this.layerPointToLatLng(layerPoint); |
| }, |
| |
| latLngToContainerPoint: function (latlng) { |
| return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng))); |
| }, |
| |
| mouseEventToContainerPoint: function (e) { // (MouseEvent) |
| return L.DomEvent.getMousePosition(e, this._container); |
| }, |
| |
| mouseEventToLayerPoint: function (e) { // (MouseEvent) |
| return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e)); |
| }, |
| |
| mouseEventToLatLng: function (e) { // (MouseEvent) |
| return this.layerPointToLatLng(this.mouseEventToLayerPoint(e)); |
| }, |
| |
| |
| // map initialization methods |
| |
| _initContainer: function (id) { |
| var container = this._container = L.DomUtil.get(id); |
| |
| if (!container) { |
| throw new Error('Map container not found.'); |
| } else if (container._leaflet) { |
| throw new Error('Map container is already initialized.'); |
| } |
| |
| container._leaflet = true; |
| }, |
| |
| _initLayout: function () { |
| var container = this._container; |
| |
| L.DomUtil.addClass(container, 'leaflet-container' + |
| (L.Browser.touch ? ' leaflet-touch' : '') + |
| (L.Browser.retina ? ' leaflet-retina' : '') + |
| (L.Browser.ielt9 ? ' leaflet-oldie' : '') + |
| (this.options.fadeAnimation ? ' leaflet-fade-anim' : '')); |
| |
| var position = L.DomUtil.getStyle(container, 'position'); |
| |
| if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') { |
| container.style.position = 'relative'; |
| } |
| |
| this._initPanes(); |
| |
| if (this._initControlPos) { |
| this._initControlPos(); |
| } |
| }, |
| |
| _initPanes: function () { |
| var panes = this._panes = {}; |
| |
| this._mapPane = panes.mapPane = this._createPane('leaflet-map-pane', this._container); |
| |
| this._tilePane = panes.tilePane = this._createPane('leaflet-tile-pane', this._mapPane); |
| panes.objectsPane = this._createPane('leaflet-objects-pane', this._mapPane); |
| panes.shadowPane = this._createPane('leaflet-shadow-pane'); |
| panes.overlayPane = this._createPane('leaflet-overlay-pane'); |
| panes.markerPane = this._createPane('leaflet-marker-pane'); |
| panes.popupPane = this._createPane('leaflet-popup-pane'); |
| |
| var zoomHide = ' leaflet-zoom-hide'; |
| |
| if (!this.options.markerZoomAnimation) { |
| L.DomUtil.addClass(panes.markerPane, zoomHide); |
| L.DomUtil.addClass(panes.shadowPane, zoomHide); |
| L.DomUtil.addClass(panes.popupPane, zoomHide); |
| } |
| }, |
| |
| _createPane: function (className, container) { |
| return L.DomUtil.create('div', className, container || this._panes.objectsPane); |
| }, |
| |
| _clearPanes: function () { |
| this._container.removeChild(this._mapPane); |
| }, |
| |
| _addLayers: function (layers) { |
| layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : []; |
| |
| for (var i = 0, len = layers.length; i < len; i++) { |
| this.addLayer(layers[i]); |
| } |
| }, |
| |
| |
| // private methods that modify map state |
| |
| _resetView: function (center, zoom, preserveMapOffset, afterZoomAnim) { |
| |
| var zoomChanged = (this._zoom !== zoom); |
| |
| if (!afterZoomAnim) { |
| this.fire('movestart'); |
| |
| if (zoomChanged) { |
| this.fire('zoomstart'); |
| } |
| } |
| |
| this._zoom = zoom; |
| this._initialCenter = center; |
| |
| this._initialTopLeftPoint = this._getNewTopLeftPoint(center); |
| |
| if (!preserveMapOffset) { |
| L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0)); |
| } else { |
| this._initialTopLeftPoint._add(this._getMapPanePos()); |
| } |
| |
| this._tileLayersToLoad = this._tileLayersNum; |
| |
| var loading = !this._loaded; |
| this._loaded = true; |
| |
| this.fire('viewreset', {hard: !preserveMapOffset}); |
| |
| if (loading) { |
| this.fire('load'); |
| this.eachLayer(this._layerAdd, this); |
| } |
| |
| this.fire('move'); |
| |
| if (zoomChanged || afterZoomAnim) { |
| this.fire('zoomend'); |
| } |
| |
| this.fire('moveend', {hard: !preserveMapOffset}); |
| }, |
| |
| _rawPanBy: function (offset) { |
| L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset)); |
| }, |
| |
| _getZoomSpan: function () { |
| return this.getMaxZoom() - this.getMinZoom(); |
| }, |
| |
| _updateZoomLevels: function () { |
| var i, |
| minZoom = Infinity, |
| maxZoom = -Infinity, |
| oldZoomSpan = this._getZoomSpan(); |
| |
| for (i in this._zoomBoundLayers) { |
| var layer = this._zoomBoundLayers[i]; |
| if (!isNaN(layer.options.minZoom)) { |
| minZoom = Math.min(minZoom, layer.options.minZoom); |
| } |
| if (!isNaN(layer.options.maxZoom)) { |
| maxZoom = Math.max(maxZoom, layer.options.maxZoom); |
| } |
| } |
| |
| if (i === undefined) { // we have no tilelayers |
| this._layersMaxZoom = this._layersMinZoom = undefined; |
| } else { |
| this._layersMaxZoom = maxZoom; |
| this._layersMinZoom = minZoom; |
| } |
| |
| if (oldZoomSpan !== this._getZoomSpan()) { |
| this.fire('zoomlevelschange'); |
| } |
| }, |
| |
| _panInsideMaxBounds: function () { |
| this.panInsideBounds(this.options.maxBounds); |
| }, |
| |
| _checkIfLoaded: function () { |
| if (!this._loaded) { |
| throw new Error('Set map center and zoom first.'); |
| } |
| }, |
| |
| // map events |
| |
| _initEvents: function (onOff) { |
| if (!L.DomEvent) { return; } |
| |
| onOff = onOff || 'on'; |
| |
| L.DomEvent[onOff](this._container, 'click', this._onMouseClick, this); |
| |
| var events = ['dblclick', 'mousedown', 'mouseup', 'mouseenter', |
| 'mouseleave', 'mousemove', 'contextmenu'], |
| i, len; |
| |
| for (i = 0, len = events.length; i < len; i++) { |
| L.DomEvent[onOff](this._container, events[i], this._fireMouseEvent, this); |
| } |
| |
| if (this.options.trackResize) { |
| L.DomEvent[onOff](window, 'resize', this._onResize, this); |
| } |
| }, |
| |
| _onResize: function () { |
| L.Util.cancelAnimFrame(this._resizeRequest); |
| this._resizeRequest = L.Util.requestAnimFrame( |
| function () { this.invalidateSize({debounceMoveend: true}); }, this, false, this._container); |
| }, |
| |
| _onMouseClick: function (e) { |
| if (!this._loaded || (!e._simulated && |
| ((this.dragging && this.dragging.moved()) || |
| (this.boxZoom && this.boxZoom.moved()))) || |
| L.DomEvent._skipped(e)) { return; } |
| |
| this.fire('preclick'); |
| this._fireMouseEvent(e); |
| }, |
| |
| _fireMouseEvent: function (e) { |
| if (!this._loaded || L.DomEvent._skipped(e)) { return; } |
| |
| var type = e.type; |
| |
| type = (type === 'mouseenter' ? 'mouseover' : (type === 'mouseleave' ? 'mouseout' : type)); |
| |
| if (!this.hasEventListeners(type)) { return; } |
| |
| if (type === 'contextmenu') { |
| L.DomEvent.preventDefault(e); |
| } |
| |
| var containerPoint = this.mouseEventToContainerPoint(e), |
| layerPoint = this.containerPointToLayerPoint(containerPoint), |
| latlng = this.layerPointToLatLng(layerPoint); |
| |
| this.fire(type, { |
| latlng: latlng, |
| layerPoint: layerPoint, |
| containerPoint: containerPoint, |
| originalEvent: e |
| }); |
| }, |
| |
| _onTileLayerLoad: function () { |
| this._tileLayersToLoad--; |
| if (this._tileLayersNum && !this._tileLayersToLoad) { |
| this.fire('tilelayersload'); |
| } |
| }, |
| |
| _clearHandlers: function () { |
| for (var i = 0, len = this._handlers.length; i < len; i++) { |
| this._handlers[i].disable(); |
| } |
| }, |
| |
| whenReady: function (callback, context) { |
| if (this._loaded) { |
| callback.call(context || this, this); |
| } else { |
| this.on('load', callback, context); |
| } |
| return this; |
| }, |
| |
| _layerAdd: function (layer) { |
| layer.onAdd(this); |
| this.fire('layeradd', {layer: layer}); |
| }, |
| |
| |
| // private methods for getting map state |
| |
| _getMapPanePos: function () { |
| return L.DomUtil.getPosition(this._mapPane); |
| }, |
| |
| _moved: function () { |
| var pos = this._getMapPanePos(); |
| return pos && !pos.equals([0, 0]); |
| }, |
| |
| _getTopLeftPoint: function () { |
| return this.getPixelOrigin().subtract(this._getMapPanePos()); |
| }, |
| |
| _getNewTopLeftPoint: function (center, zoom) { |
| var viewHalf = this.getSize()._divideBy(2); |
| // TODO round on display, not calculation to increase precision? |
| return this.project(center, zoom)._subtract(viewHalf)._round(); |
| }, |
| |
| _latLngToNewLayerPoint: function (latlng, newZoom, newCenter) { |
| var topLeft = this._getNewTopLeftPoint(newCenter, newZoom).add(this._getMapPanePos()); |
| return this.project(latlng, newZoom)._subtract(topLeft); |
| }, |
| |
| // layer point of the current center |
| _getCenterLayerPoint: function () { |
| return this.containerPointToLayerPoint(this.getSize()._divideBy(2)); |
| }, |
| |
| // offset of the specified place to the current center in pixels |
| _getCenterOffset: function (latlng) { |
| return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint()); |
| }, |
| |
| // adjust center for view to get inside bounds |
| _limitCenter: function (center, zoom, bounds) { |
| |
| if (!bounds) { return center; } |
| |
| var centerPoint = this.project(center, zoom), |
| viewHalf = this.getSize().divideBy(2), |
| viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)), |
| offset = this._getBoundsOffset(viewBounds, bounds, zoom); |
| |
| return this.unproject(centerPoint.add(offset), zoom); |
| }, |
| |
| // adjust offset for view to get inside bounds |
| _limitOffset: function (offset, bounds) { |
| if (!bounds) { return offset; } |
| |
| var viewBounds = this.getPixelBounds(), |
| newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset)); |
| |
| return offset.add(this._getBoundsOffset(newBounds, bounds)); |
| }, |
| |
| // returns offset needed for pxBounds to get inside maxBounds at a specified zoom |
| _getBoundsOffset: function (pxBounds, maxBounds, zoom) { |
| var nwOffset = this.project(maxBounds.getNorthWest(), zoom).subtract(pxBounds.min), |
| seOffset = this.project(maxBounds.getSouthEast(), zoom).subtract(pxBounds.max), |
| |
| dx = this._rebound(nwOffset.x, -seOffset.x), |
| dy = this._rebound(nwOffset.y, -seOffset.y); |
| |
| return new L.Point(dx, dy); |
| }, |
| |
| _rebound: function (left, right) { |
| return left + right > 0 ? |
| Math.round(left - right) / 2 : |
| Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right)); |
| }, |
| |
| _limitZoom: function (zoom) { |
| var min = this.getMinZoom(), |
| max = this.getMaxZoom(); |
| |
| return Math.max(min, Math.min(max, zoom)); |
| } |
| }); |
| |
| L.map = function (id, options) { |
| return new L.Map(id, options); |
| }; |
| |
| |
| /* |
| * Mercator projection that takes into account that the Earth is not a perfect sphere. |
| * Less popular than spherical mercator; used by projections like EPSG:3395. |
| */ |
| |
| L.Projection.Mercator = { |
| MAX_LATITUDE: 85.0840591556, |
| |
| R_MINOR: 6356752.314245179, |
| R_MAJOR: 6378137, |
| |
| project: function (latlng) { // (LatLng) -> Point |
| var d = L.LatLng.DEG_TO_RAD, |
| max = this.MAX_LATITUDE, |
| lat = Math.max(Math.min(max, latlng.lat), -max), |
| r = this.R_MAJOR, |
| r2 = this.R_MINOR, |
| x = latlng.lng * d * r, |
| y = lat * d, |
| tmp = r2 / r, |
| eccent = Math.sqrt(1.0 - tmp * tmp), |
| con = eccent * Math.sin(y); |
| |
| con = Math.pow((1 - con) / (1 + con), eccent * 0.5); |
| |
| var ts = Math.tan(0.5 * ((Math.PI * 0.5) - y)) / con; |
| y = -r * Math.log(ts); |
| |
| return new L.Point(x, y); |
| }, |
| |
| unproject: function (point) { // (Point, Boolean) -> LatLng |
| var d = L.LatLng.RAD_TO_DEG, |
| r = this.R_MAJOR, |
| r2 = this.R_MINOR, |
| lng = point.x * d / r, |
| tmp = r2 / r, |
| eccent = Math.sqrt(1 - (tmp * tmp)), |
| ts = Math.exp(- point.y / r), |
| phi = (Math.PI / 2) - 2 * Math.atan(ts), |
| numIter = 15, |
| tol = 1e-7, |
| i = numIter, |
| dphi = 0.1, |
| con; |
| |
| while ((Math.abs(dphi) > tol) && (--i > 0)) { |
| con = eccent * Math.sin(phi); |
| dphi = (Math.PI / 2) - 2 * Math.atan(ts * |
| Math.pow((1.0 - con) / (1.0 + con), 0.5 * eccent)) - phi; |
| phi += dphi; |
| } |
| |
| return new L.LatLng(phi * d, lng); |
| } |
| }; |
| |
| |
| |
| L.CRS.EPSG3395 = L.extend({}, L.CRS, { |
| code: 'EPSG:3395', |
| |
| projection: L.Projection.Mercator, |
| |
| transformation: (function () { |
| var m = L.Projection.Mercator, |
| r = m.R_MAJOR, |
| scale = 0.5 / (Math.PI * r); |
| |
| return new L.Transformation(scale, 0.5, -scale, 0.5); |
| }()) |
| }); |
| |
| |
| /* |
| * L.TileLayer is used for standard xyz-numbered tile layers. |
| */ |
| |
| L.TileLayer = L.Class.extend({ |
| includes: L.Mixin.Events, |
| |
| options: { |
| minZoom: 0, |
| maxZoom: 18, |
| tileSize: 256, |
| subdomains: 'abc', |
| errorTileUrl: '', |
| attribution: '', |
| zoomOffset: 0, |
| opacity: 1, |
| /* |
| maxNativeZoom: null, |
| zIndex: null, |
| tms: false, |
| continuousWorld: false, |
| noWrap: false, |
| zoomReverse: false, |
| detectRetina: false, |
| reuseTiles: false, |
| bounds: false, |
| */ |
| unloadInvisibleTiles: L.Browser.mobile, |
| updateWhenIdle: L.Browser.mobile |
| }, |
| |
| initialize: function (url, options) { |
| options = L.setOptions(this, options); |
| |
| // detecting retina displays, adjusting tileSize and zoom levels |
| if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) { |
| |
| options.tileSize = Math.floor(options.tileSize / 2); |
| options.zoomOffset++; |
| |
| if (options.minZoom > 0) { |
| options.minZoom--; |
| } |
| this.options.maxZoom--; |
| } |
| |
| if (options.bounds) { |
| options.bounds = L.latLngBounds(options.bounds); |
| } |
| |
| this._url = url; |
| |
| var subdomains = this.options.subdomains; |
| |
| if (typeof subdomains === 'string') { |
| this.options.subdomains = subdomains.split(''); |
| } |
| }, |
| |
| onAdd: function (map) { |
| this._map = map; |
| this._animated = map._zoomAnimated; |
| |
| // create a container div for tiles |
| this._initContainer(); |
| |
| // set up events |
| map.on({ |
| 'viewreset': this._reset, |
| 'moveend': this._update |
| }, this); |
| |
| if (this._animated) { |
| map.on({ |
| 'zoomanim': this._animateZoom, |
| 'zoomend': this._endZoomAnim |
| }, this); |
| } |
| |
| if (!this.options.updateWhenIdle) { |
| this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this); |
| map.on('move', this._limitedUpdate, this); |
| } |
| |
| this._reset(); |
| this._update(); |
| }, |
| |
| addTo: function (map) { |
| map.addLayer(this); |
| return this; |
| }, |
| |
| onRemove: function (map) { |
| this._container.parentNode.removeChild(this._container); |
| |
| map.off({ |
| 'viewreset': this._reset, |
| 'moveend': this._update |
| }, this); |
| |
| if (this._animated) { |
| map.off({ |
| 'zoomanim': this._animateZoom, |
| 'zoomend': this._endZoomAnim |
| }, this); |
| } |
| |
| if (!this.options.updateWhenIdle) { |
| map.off('move', this._limitedUpdate, this); |
| } |
| |
| this._container = null; |
| this._map = null; |
| }, |
| |
| bringToFront: function () { |
| var pane = this._map._panes.tilePane; |
| |
| if (this._container) { |
| pane.appendChild(this._container); |
| this._setAutoZIndex(pane, Math.max); |
| } |
| |
| return this; |
| }, |
| |
| bringToBack: function () { |
| var pane = this._map._panes.tilePane; |
| |
| if (this._container) { |
| pane.insertBefore(this._container, pane.firstChild); |
| this._setAutoZIndex(pane, Math.min); |
| } |
| |
| return this; |
| }, |
| |
| getAttribution: function () { |
| return this.options.attribution; |
| }, |
| |
| getContainer: function () { |
| return this._container; |
| }, |
| |
| setOpacity: function (opacity) { |
| this.options.opacity = opacity; |
| |
| if (this._map) { |
| this._updateOpacity(); |
| } |
| |
| return this; |
| }, |
| |
| setZIndex: function (zIndex) { |
| this.options.zIndex = zIndex; |
| this._updateZIndex(); |
| |
| return this; |
| }, |
| |
| setUrl: function (url, noRedraw) { |
| this._url = url; |
| |
| if (!noRedraw) { |
| this.redraw(); |
| } |
| |
| return this; |
| }, |
| |
| redraw: function () { |
| if (this._map) { |
| this._reset({hard: true}); |
| this._update(); |
| } |
| return this; |
| }, |
| |
| _updateZIndex: function () { |
| if (this._container && this.options.zIndex !== undefined) { |
| this._container.style.zIndex = this.options.zIndex; |
| } |
| }, |
| |
| _setAutoZIndex: function (pane, compare) { |
| |
| var layers = pane.children, |
| edgeZIndex = -compare(Infinity, -Infinity), // -Infinity for max, Infinity for min |
| zIndex, i, len; |
| |
| for (i = 0, len = layers.length; i < len; i++) { |
| |
| if (layers[i] !== this._container) { |
| zIndex = parseInt(layers[i].style.zIndex, 10); |
| |
| if (!isNaN(zIndex)) { |
| edgeZIndex = compare(edgeZIndex, zIndex); |
| } |
| } |
| } |
| |
| this.options.zIndex = this._container.style.zIndex = |
| (isFinite(edgeZIndex) ? edgeZIndex : 0) + compare(1, -1); |
| }, |
| |
| _updateOpacity: function () { |
| var i, |
| tiles = this._tiles; |
| |
| if (L.Browser.ielt9) { |
| for (i in tiles) { |
| L.DomUtil.setOpacity(tiles[i], this.options.opacity); |
| } |
| } else { |
| L.DomUtil.setOpacity(this._container, this.options.opacity); |
| } |
| }, |
| |
| _initContainer: function () { |
| var tilePane = this._map._panes.tilePane; |
| |
| if (!this._container) { |
| this._container = L.DomUtil.create('div', 'leaflet-layer'); |
| |
| this._updateZIndex(); |
| |
| if (this._animated) { |
| var className = 'leaflet-tile-container'; |
| |
| this._bgBuffer = L.DomUtil.create('div', className, this._container); |
| this._tileContainer = L.DomUtil.create('div', className, this._container); |
| |
| } else { |
| this._tileContainer = this._container; |
| } |
| |
| tilePane.appendChild(this._container); |
| |
| if (this.options.opacity < 1) { |
| this._updateOpacity(); |
| } |
| } |
| }, |
| |
| _reset: function (e) { |
| for (var key in this._tiles) { |
| this.fire('tileunload', {tile: this._tiles[key]}); |
| } |
| |
| this._tiles = {}; |
| this._tilesToLoad = 0; |
| |
| if (this.options.reuseTiles) { |
| this._unusedTiles = []; |
| } |
| |
| this._tileContainer.innerHTML = ''; |
| |
| if (this._animated && e && e.hard) { |
| this._clearBgBuffer(); |
| } |
| |
| this._initContainer(); |
| }, |
| |
| _getTileSize: function () { |
| var map = this._map, |
| zoom = map.getZoom() + this.options.zoomOffset, |
| zoomN = this.options.maxNativeZoom, |
| tileSize = this.options.tileSize; |
| |
| if (zoomN && zoom > zoomN) { |
| tileSize = Math.round(map.getZoomScale(zoom) / map.getZoomScale(zoomN) * tileSize); |
| } |
| |
| return tileSize; |
| }, |
| |
| _update: function () { |
| |
| if (!this._map) { return; } |
| |
| var map = this._map, |
| bounds = map.getPixelBounds(), |
| zoom = map.getZoom(), |
| tileSize = this._getTileSize(); |
| |
| if (zoom > this.options.maxZoom || zoom < this.options.minZoom) { |
| return; |
| } |
| |
| var tileBounds = L.bounds( |
| bounds.min.divideBy(tileSize)._floor(), |
| bounds.max.divideBy(tileSize)._floor()); |
| |
| this._addTilesFromCenterOut(tileBounds); |
| |
| if (this.options.unloadInvisibleTiles || this.options.reuseTiles) { |
| this._removeOtherTiles(tileBounds); |
| } |
| }, |
| |
| _addTilesFromCenterOut: function (bounds) { |
| var queue = [], |
| center = bounds.getCenter(); |
| |
| var j, i, point; |
| |
| for (j = bounds.min.y; j <= bounds.max.y; j++) { |
| for (i = bounds.min.x; i <= bounds.max.x; i++) { |
| point = new L.Point(i, j); |
| |
| if (this._tileShouldBeLoaded(point)) { |
| queue.push(point); |
| } |
| } |
| } |
| |
| var tilesToLoad = queue.length; |
| |
| if (tilesToLoad === 0) { return; } |
| |
| // load tiles in order of their distance to center |
| queue.sort(function (a, b) { |
| return a.distanceTo(center) - b.distanceTo(center); |
| }); |
| |
| var fragment = document.createDocumentFragment(); |
| |
| // if its the first batch of tiles to load |
| if (!this._tilesToLoad) { |
| this.fire('loading'); |
| } |
| |
| this._tilesToLoad += tilesToLoad; |
| |
| for (i = 0; i < tilesToLoad; i++) { |
| this._addTile(queue[i], fragment); |
| } |
| |
| this._tileContainer.appendChild(fragment); |
| }, |
| |
| _tileShouldBeLoaded: function (tilePoint) { |
| if ((tilePoint.x + ':' + tilePoint.y) in this._tiles) { |
| return false; // already loaded |
| } |
| |
| var options = this.options; |
| |
| if (!options.continuousWorld) { |
| var limit = this._getWrapTileNum(); |
| |
| // don't load if exceeds world bounds |
| if ((options.noWrap && (tilePoint.x < 0 || tilePoint.x >= limit.x)) || |
| tilePoint.y < 0 || tilePoint.y >= limit.y) { return false; } |
| } |
| |
| if (options.bounds) { |
| var tileSize = this._getTileSize(), |
| nwPoint = tilePoint.multiplyBy(tileSize), |
| sePoint = nwPoint.add([tileSize, tileSize]), |
| nw = this._map.unproject(nwPoint), |
| se = this._map.unproject(sePoint); |
| |
| // TODO temporary hack, will be removed after refactoring projections |
| // https://github.com/Leaflet/Leaflet/issues/1618 |
| if (!options.continuousWorld && !options.noWrap) { |
| nw = nw.wrap(); |
| se = se.wrap(); |
| } |
| |
| if (!options.bounds.intersects([nw, se])) { return false; } |
| } |
| |
| return true; |
| }, |
| |
| _removeOtherTiles: function (bounds) { |
| var kArr, x, y, key; |
| |
| for (key in this._tiles) { |
| kArr = key.split(':'); |
| x = parseInt(kArr[0], 10); |
| y = parseInt(kArr[1], 10); |
| |
| // remove tile if it's out of bounds |
| if (x < bounds.min.x || x > bounds.max.x || y < bounds.min.y || y > bounds.max.y) { |
| this._removeTile(key); |
| } |
| } |
| }, |
| |
| _removeTile: function (key) { |
| var tile = this._tiles[key]; |
| |
| this.fire('tileunload', {tile: tile, url: tile.src}); |
| |
| if (this.options.reuseTiles) { |
| L.DomUtil.removeClass(tile, 'leaflet-tile-loaded'); |
| this._unusedTiles.push(tile); |
| |
| } else if (tile.parentNode === this._tileContainer) { |
| this._tileContainer.removeChild(tile); |
| } |
| |
| // for https://github.com/CloudMade/Leaflet/issues/137 |
| if (!L.Browser.android) { |
| tile.onload = null; |
| tile.src = L.Util.emptyImageUrl; |
| } |
| |
| delete this._tiles[key]; |
| }, |
| |
| _addTile: function (tilePoint, container) { |
| var tilePos = this._getTilePos(tilePoint); |
| |
| // get unused tile - or create a new tile |
| var tile = this._getTile(); |
| |
| /* |
| Chrome 20 layouts much faster with top/left (verify with timeline, frames) |
| Android 4 browser has display issues with top/left and requires transform instead |
| (other browsers don't currently care) - see debug/hacks/jitter.html for an example |
| */ |
| L.DomUtil.setPosition(tile, tilePos, L.Browser.chrome); |
| |
| this._tiles[tilePoint.x + ':' + tilePoint.y] = tile; |
| |
| this._loadTile(tile, tilePoint); |
| |
| if (tile.parentNode !== this._tileContainer) { |
| container.appendChild(tile); |
| } |
| }, |
| |
| _getZoomForUrl: function () { |
| |
| var options = this.options, |
| zoom = this._map.getZoom(); |
| |
| if (options.zoomReverse) { |
| zoom = options.maxZoom - zoom; |
| } |
| |
| zoom += options.zoomOffset; |
| |
| return options.maxNativeZoom ? Math.min(zoom, options.maxNativeZoom) : zoom; |
| }, |
| |
| _getTilePos: function (tilePoint) { |
| var origin = this._map.getPixelOrigin(), |
| tileSize = this._getTileSize(); |
| |
| return tilePoint.multiplyBy(tileSize).subtract(origin); |
| }, |
| |
| // image-specific code (override to implement e.g. Canvas or SVG tile layer) |
| |
| getTileUrl: function (tilePoint) { |
| return L.Util.template(this._url, L.extend({ |
| s: this._getSubdomain(tilePoint), |
| z: tilePoint.z, |
| x: tilePoint.x, |
| y: tilePoint.y |
| }, this.options)); |
| }, |
| |
| _getWrapTileNum: function () { |
| var crs = this._map.options.crs, |
| size = crs.getSize(this._map.getZoom()); |
| return size.divideBy(this._getTileSize())._floor(); |
| }, |
| |
| _adjustTilePoint: function (tilePoint) { |
| |
| var limit = this._getWrapTileNum(); |
| |
| // wrap tile coordinates |
| if (!this.options.continuousWorld && !this.options.noWrap) { |
| tilePoint.x = ((tilePoint.x % limit.x) + limit.x) % limit.x; |
| } |
| |
| if (this.options.tms) { |
| tilePoint.y = limit.y - tilePoint.y - 1; |
| } |
| |
| tilePoint.z = this._getZoomForUrl(); |
| }, |
| |
| _getSubdomain: function (tilePoint) { |
| var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length; |
| return this.options.subdomains[index]; |
| }, |
| |
| _getTile: function () { |
| if (this.options.reuseTiles && this._unusedTiles.length > 0) { |
| var tile = this._unusedTiles.pop(); |
| this._resetTile(tile); |
| return tile; |
| } |
| return this._createTile(); |
| }, |
| |
| // Override if data stored on a tile needs to be cleaned up before reuse |
| _resetTile: function (/*tile*/) {}, |
| |
| _createTile: function () { |
| var tile = L.DomUtil.create('img', 'leaflet-tile'); |
| tile.style.width = tile.style.height = this._getTileSize() + 'px'; |
| tile.galleryimg = 'no'; |
| |
| tile.onselectstart = tile.onmousemove = L.Util.falseFn; |
| |
| if (L.Browser.ielt9 && this.options.opacity !== undefined) { |
| L.DomUtil.setOpacity(tile, this.options.opacity); |
| } |
| // without this hack, tiles disappear after zoom on Chrome for Android |
| // https://github.com/Leaflet/Leaflet/issues/2078 |
| if (L.Browser.mobileWebkit3d) { |
| tile.style.WebkitBackfaceVisibility = 'hidden'; |
| } |
| return tile; |
| }, |
| |
| _loadTile: function (tile, tilePoint) { |
| tile._layer = this; |
| tile.onload = this._tileOnLoad; |
| tile.onerror = this._tileOnError; |
| |
| this._adjustTilePoint(tilePoint); |
| tile.src = this.getTileUrl(tilePoint); |
| |
| this.fire('tileloadstart', { |
| tile: tile, |
| url: tile.src |
| }); |
| }, |
| |
| _tileLoaded: function () { |
| this._tilesToLoad--; |
| |
| if (this._animated) { |
| L.DomUtil.addClass(this._tileContainer, 'leaflet-zoom-animated'); |
| } |
| |
| if (!this._tilesToLoad) { |
| this.fire('load'); |
| |
| if (this._animated) { |
| // clear scaled tiles after all new tiles are loaded (for performance) |
| clearTimeout(this._clearBgBufferTimer); |
| this._clearBgBufferTimer = setTimeout(L.bind(this._clearBgBuffer, this), 500); |
| } |
| } |
| }, |
| |
| _tileOnLoad: function () { |
| var layer = this._layer; |
| |
| //Only if we are loading an actual image |
| if (this.src !== L.Util.emptyImageUrl) { |
| L.DomUtil.addClass(this, 'leaflet-tile-loaded'); |
| |
| layer.fire('tileload', { |
| tile: this, |
| url: this.src |
| }); |
| } |
| |
| layer._tileLoaded(); |
| }, |
| |
| _tileOnError: function () { |
| var layer = this._layer; |
| |
| layer.fire('tileerror', { |
| tile: this, |
| url: this.src |
| }); |
| |
| var newUrl = layer.options.errorTileUrl; |
| if (newUrl) { |
| this.src = newUrl; |
| } |
| |
| layer._tileLoaded(); |
| } |
| }); |
| |
| L.tileLayer = function (url, options) { |
| return new L.TileLayer(url, options); |
| }; |
| |
| |
| /* |
| * L.TileLayer.WMS is used for putting WMS tile layers on the map. |
| */ |
| |
| L.TileLayer.WMS = L.TileLayer.extend({ |
| |
| defaultWmsParams: { |
| service: 'WMS', |
| request: 'GetMap', |
| version: '1.1.1', |
| layers: '', |
| styles: '', |
| format: 'image/jpeg', |
| transparent: false |
| }, |
| |
| initialize: function (url, options) { // (String, Object) |
| |
| this._url = url; |
| |
| var wmsParams = L.extend({}, this.defaultWmsParams), |
| tileSize = options.tileSize || this.options.tileSize; |
| |
| if (options.detectRetina && L.Browser.retina) { |
| wmsParams.width = wmsParams.height = tileSize * 2; |
| } else { |
| wmsParams.width = wmsParams.height = tileSize; |
| } |
| |
| for (var i in options) { |
| // all keys that are not TileLayer options go to WMS params |
| if (!this.options.hasOwnProperty(i) && i !== 'crs') { |
| wmsParams[i] = options[i]; |
| } |
| } |
| |
| this.wmsParams = wmsParams; |
| |
| L.setOptions(this, options); |
| }, |
| |
| onAdd: function (map) { |
| |
| this._crs = this.options.crs || map.options.crs; |
| |
| this._wmsVersion = parseFloat(this.wmsParams.version); |
| |
| var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs'; |
| this.wmsParams[projectionKey] = this._crs.code; |
| |
| L.TileLayer.prototype.onAdd.call(this, map); |
| }, |
| |
| getTileUrl: function (tilePoint) { // (Point, Number) -> String |
| |
| var map = this._map, |
| tileSize = this.options.tileSize, |
| |
| nwPoint = tilePoint.multiplyBy(tileSize), |
| sePoint = nwPoint.add([tileSize, tileSize]), |
| |
| nw = this._crs.project(map.unproject(nwPoint, tilePoint.z)), |
| se = this._crs.project(map.unproject(sePoint, tilePoint.z)), |
| bbox = this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ? |
| [se.y, nw.x, nw.y, se.x].join(',') : |
| [nw.x, se.y, se.x, nw.y].join(','), |
| |
| url = L.Util.template(this._url, {s: this._getSubdomain(tilePoint)}); |
| |
| return url + L.Util.getParamString(this.wmsParams, url, true) + '&BBOX=' + bbox; |
| }, |
| |
| setParams: function (params, noRedraw) { |
| |
| L.extend(this.wmsParams, params); |
| |
| if (!noRedraw) { |
| this.redraw(); |
| } |
| |
| return this; |
| } |
| }); |
| |
| L.tileLayer.wms = function (url, options) { |
| return new L.TileLayer.WMS(url, options); |
| }; |
| |
| |
| /* |
| * L.TileLayer.Canvas is a class that you can use as a base for creating |
| * dynamically drawn Canvas-based tile layers. |
| */ |
| |
| L.TileLayer.Canvas = L.TileLayer.extend({ |
| options: { |
| async: false |
| }, |
| |
| initialize: function (options) { |
| L.setOptions(this, options); |
| }, |
| |
| redraw: function () { |
| if (this._map) { |
| this._reset({hard: true}); |
| this._update(); |
| } |
| |
| for (var i in this._tiles) { |
| this._redrawTile(this._tiles[i]); |
| } |
| return this; |
| }, |
| |
| _redrawTile: function (tile) { |
| this.drawTile(tile, tile._tilePoint, this._map._zoom); |
| }, |
| |
| _createTile: function () { |
| var tile = L.DomUtil.create('canvas', 'leaflet-tile'); |
| tile.width = tile.height = this.options.tileSize; |
| tile.onselectstart = tile.onmousemove = L.Util.falseFn; |
| return tile; |
| }, |
| |
| _loadTile: function (tile, tilePoint) { |
| tile._layer = this; |
| tile._tilePoint = tilePoint; |
| |
| this._redrawTile(tile); |
| |
| if (!this.options.async) { |
| this.tileDrawn(tile); |
| } |
| }, |
| |
| drawTile: function (/*tile, tilePoint*/) { |
| // override with rendering code |
| }, |
| |
| tileDrawn: function (tile) { |
| this._tileOnLoad.call(tile); |
| } |
| }); |
| |
| |
| L.tileLayer.canvas = function (options) { |
| return new L.TileLayer.Canvas(options); |
| }; |
| |
| |
| /* |
| * L.ImageOverlay is used to overlay images over the map (to specific geographical bounds). |
| */ |
| |
| L.ImageOverlay = L.Class.extend({ |
| includes: L.Mixin.Events, |
| |
| options: { |
| opacity: 1 |
| }, |
| |
| initialize: function (url, bounds, options) { // (String, LatLngBounds, Object) |
| this._url = url; |
| this._bounds = L.latLngBounds(bounds); |
| |
| L.setOptions(this, options); |
| }, |
| |
| onAdd: function (map) { |
| this._map = map; |
| |
| if (!this._image) { |
| this._initImage(); |
| } |
| |
| map._panes.overlayPane.appendChild(this._image); |
| |
| map.on('viewreset', this._reset, this); |
| |
| if (map.options.zoomAnimation && L.Browser.any3d) { |
| map.on('zoomanim', this._animateZoom, this); |
| } |
| |
| this._reset(); |
| }, |
| |
| onRemove: function (map) { |
| map.getPanes().overlayPane.removeChild(this._image); |
| |
| map.off('viewreset', this._reset, this); |
| |
| if (map.options.zoomAnimation) { |
| map.off('zoomanim', this._animateZoom, this); |
| } |
| }, |
| |
| addTo: function (map) { |
| map.addLayer(this); |
| return this; |
| }, |
| |
| setOpacity: function (opacity) { |
| this.options.opacity = opacity; |
| this._updateOpacity(); |
| return this; |
| }, |
| |
| // TODO remove bringToFront/bringToBack duplication from TileLayer/Path |
| bringToFront: function () { |
| if (this._image) { |
| this._map._panes.overlayPane.appendChild(this._image); |
| } |
| return this; |
| }, |
| |
| bringToBack: function () { |
| var pane = this._map._panes.overlayPane; |
| if (this._image) { |
| pane.insertBefore(this._image, pane.firstChild); |
| } |
| return this; |
| }, |
| |
| setUrl: function (url) { |
| this._url = url; |
| this._image.src = this._url; |
| }, |
| |
| getAttribution: function () { |
| return this.options.attribution; |
| }, |
| |
| _initImage: function () { |
| this._image = L.DomUtil.create('img', 'leaflet-image-layer'); |
| |
| if (this._map.options.zoomAnimation && L.Browser.any3d) { |
| L.DomUtil.addClass(this._image, 'leaflet-zoom-animated'); |
| } else { |
| L.DomUtil.addClass(this._image, 'leaflet-zoom-hide'); |
| } |
| |
| this._updateOpacity(); |
| |
| //TODO createImage util method to remove duplication |
| L.extend(this._image, { |
| galleryimg: 'no', |
| onselectstart: L.Util.falseFn, |
| onmousemove: L.Util.falseFn, |
| onload: L.bind(this._onImageLoad, this), |
| src: this._url |
| }); |
| }, |
| |
| _animateZoom: function (e) { |
| var map = this._map, |
| image = this._image, |
| scale = map.getZoomScale(e.zoom), |
| nw = this._bounds.getNorthWest(), |
| se = this._bounds.getSouthEast(), |
| |
| topLeft = map._latLngToNewLayerPoint(nw, e.zoom, e.center), |
| size = map._latLngToNewLayerPoint(se, e.zoom, e.center)._subtract(topLeft), |
| origin = topLeft._add(size._multiplyBy((1 / 2) * (1 - 1 / scale))); |
| |
| image.style[L.DomUtil.TRANSFORM] = |
| L.DomUtil.getTranslateString(origin) + ' scale(' + scale + ') '; |
| }, |
| |
| _reset: function () { |
| var image = this._image, |
| topLeft = this._map.latLngToLayerPoint(this._bounds.getNorthWest()), |
| size = this._map.latLngToLayerPoint(this._bounds.getSouthEast())._subtract(topLeft); |
| |
| L.DomUtil.setPosition(image, topLeft); |
| |
| image.style.width = size.x + 'px'; |
| image.style.height = size.y + 'px'; |
| }, |
| |
| _onImageLoad: function () { |
| this.fire('load'); |
| }, |
| |
| _updateOpacity: function () { |
| L.DomUtil.setOpacity(this._image, this.options.opacity); |
| } |
| }); |
| |
| L.imageOverlay = function (url, bounds, options) { |
| return new L.ImageOverlay(url, bounds, options); |
| }; |
| |
| |
| /* |
| * L.Icon is an image-based icon class that you can use with L.Marker for custom markers. |
| */ |
| |
| L.Icon = L.Class.extend({ |
| options: { |
| /* |
| iconUrl: (String) (required) |
| iconRetinaUrl: (String) (optional, used for retina devices if detected) |
| iconSize: (Point) (can be set through CSS) |
| iconAnchor: (Point) (centered by default, can be set in CSS with negative margins) |
| popupAnchor: (Point) (if not specified, popup opens in the anchor point) |
| shadowUrl: (String) (no shadow by default) |
| shadowRetinaUrl: (String) (optional, used for retina devices if detected) |
| shadowSize: (Point) |
| shadowAnchor: (Point) |
| */ |
| className: '' |
| }, |
| |
| initialize: function (options) { |
| L.setOptions(this, options); |
| }, |
| |
| createIcon: function (oldIcon) { |
| return this._createIcon('icon', oldIcon); |
| }, |
| |
| createShadow: function (oldIcon) { |
| return this._createIcon('shadow', oldIcon); |
| }, |
| |
| _createIcon: function (name, oldIcon) { |
| var src = this._getIconUrl(name); |
| |
| if (!src) { |
| if (name === 'icon') { |
| throw new Error('iconUrl not set in Icon options (see the docs).'); |
| } |
| return null; |
| } |
| |
| var img; |
| if (!oldIcon || oldIcon.tagName !== 'IMG') { |
| img = this._createImg(src); |
| } else { |
| img = this._createImg(src, oldIcon); |
| } |
| this._setIconStyles(img, name); |
| |
| return img; |
| }, |
| |
| _setIconStyles: function (img, name) { |
| var options = this.options, |
| size = L.point(options[name + 'Size']), |
| anchor; |
| |
| if (name === 'shadow') { |
| anchor = L.point(options.shadowAnchor || options.iconAnchor); |
| } else { |
| anchor = L.point(options.iconAnchor); |
| } |
| |
| if (!anchor && size) { |
| anchor = size.divideBy(2, true); |
| } |
| |
| img.className = 'leaflet-marker-' + name + ' ' + options.className; |
| |
| if (anchor) { |
| img.style.marginLeft = (-anchor.x) + 'px'; |
| img.style.marginTop = (-anchor.y) + 'px'; |
| } |
| |
| if (size) { |
| img.style.width = size.x + 'px'; |
| img.style.height = size.y + 'px'; |
| } |
| }, |
| |
| _createImg: function (src, el) { |
| el = el || document.createElement('img'); |
| el.src = src; |
| return el; |
| }, |
| |
| _getIconUrl: function (name) { |
| if (L.Browser.retina && this.options[name + 'RetinaUrl']) { |
| return this.options[name + 'RetinaUrl']; |
| } |
| return this.options[name + 'Url']; |
| } |
| }); |
| |
| L.icon = function (options) { |
| return new L.Icon(options); |
| }; |
| |
| |
| /* |
| * L.Icon.Default is the blue marker icon used by default in Leaflet. |
| */ |
| |
| L.Icon.Default = L.Icon.extend({ |
| |
| options: { |
| iconSize: [25, 41], |
| iconAnchor: [12, 41], |
| popupAnchor: [1, -34], |
| |
| shadowSize: [41, 41] |
| }, |
| |
| _getIconUrl: function (name) { |
| var key = name + 'Url'; |
| |
| if (this.options[key]) { |
| return this.options[key]; |
| } |
| |
| if (L.Browser.retina && name === 'icon') { |
| name += '-2x'; |
| } |
| |
| var path = L.Icon.Default.imagePath; |
| |
| if (!path) { |
| throw new Error('Couldn\'t autodetect L.Icon.Default.imagePath, set it manually.'); |
| } |
| |
| return path + '/marker-' + name + '.png'; |
| } |
| }); |
| |
| L.Icon.Default.imagePath = (function () { |
| var scripts = document.getElementsByTagName('script'), |
| leafletRe = /[\/^]leaflet[\-\._]?([\w\-\._]*)\.js\??/; |
| |
| var i, len, src, matches, path; |
| |
| for (i = 0, len = scripts.length; i < len; i++) { |
| src = scripts[i].src; |
| matches = src.match(leafletRe); |
| |
| if (matches) { |
| path = src.split(leafletRe)[0]; |
| return (path ? path + '/' : '') + 'images'; |
| } |
| } |
| }()); |
| |
| |
| /* |
| * L.Marker is used to display clickable/draggable icons on the map. |
| */ |
| |
| L.Marker = L.Class.extend({ |
| |
| includes: L.Mixin.Events, |
| |
| options: { |
| icon: new L.Icon.Default(), |
| title: '', |
| alt: '', |
| clickable: true, |
| draggable: false, |
| keyboard: true, |
| zIndexOffset: 0, |
| opacity: 1, |
| riseOnHover: false, |
| riseOffset: 250 |
| }, |
| |
| initialize: function (latlng, options) { |
| L.setOptions(this, options); |
| this._latlng = L.latLng(latlng); |
| }, |
| |
| onAdd: function (map) { |
| this._map = map; |
| |
| map.on('viewreset', this.update, this); |
| |
| this._initIcon(); |
| this.update(); |
| this.fire('add'); |
| |
| if (map.options.zoomAnimation && map.options.markerZoomAnimation) { |
| map.on('zoomanim', this._animateZoom, this); |
| } |
| }, |
| |
| addTo: function (map) { |
| map.addLayer(this); |
| return this; |
| }, |
| |
| onRemove: function (map) { |
| if (this.dragging) { |
| this.dragging.disable(); |
| } |
| |
| this._removeIcon(); |
| this._removeShadow(); |
| |
| this.fire('remove'); |
| |
| map.off({ |
| 'viewreset': this.update, |
| 'zoomanim': this._animateZoom |
| }, this); |
| |
| this._map = null; |
| }, |
| |
| getLatLng: function () { |
| return this._latlng; |
| }, |
| |
| setLatLng: function (latlng) { |
| this._latlng = L.latLng(latlng); |
| |
| this.update(); |
| |
| return this.fire('move', { latlng: this._latlng }); |
| }, |
| |
| setZIndexOffset: function (offset) { |
| this.options.zIndexOffset = offset; |
| this.update(); |
| |
| return this; |
| }, |
| |
| setIcon: function (icon) { |
| |
| this.options.icon = icon; |
| |
| if (this._map) { |
| this._initIcon(); |
| this.update(); |
| } |
| |
| if (this._popup) { |
| this.bindPopup(this._popup); |
| } |
| |
| return this; |
| }, |
| |
| update: function () { |
| if (this._icon) { |
| this._setPos(this._map.latLngToLayerPoint(this._latlng).round()); |
| } |
| return this; |
| }, |
| |
| _initIcon: function () { |
| var options = this.options, |
| map = this._map, |
| animation = (map.options.zoomAnimation && map.options.markerZoomAnimation), |
| classToAdd = animation ? 'leaflet-zoom-animated' : 'leaflet-zoom-hide'; |
| |
| var icon = options.icon.createIcon(this._icon), |
| addIcon = false; |
| |
| // if we're not reusing the icon, remove the old one and init new one |
| if (icon !== this._icon) { |
| if (this._icon) { |
| this._removeIcon(); |
| } |
| addIcon = true; |
| |
| if (options.title) { |
| icon.title = options.title; |
| } |
| |
| if (options.alt) { |
| icon.alt = options.alt; |
| } |
| } |
| |
| L.DomUtil.addClass(icon, classToAdd); |
| |
| if (options.keyboard) { |
| icon.tabIndex = '0'; |
| } |
| |
| this._icon = icon; |
| |
| this._initInteraction(); |
| |
| if (options.riseOnHover) { |
| L.DomEvent |
| .on(icon, 'mouseover', this._bringToFront, this) |
| .on(icon, 'mouseout', this._resetZIndex, this); |
| } |
| |
| var newShadow = options.icon.createShadow(this._shadow), |
| addShadow = false; |
| |
| if (newShadow !== this._shadow) { |
| this._removeShadow(); |
| addShadow = true; |
| } |
| |
| if (newShadow) { |
| L.DomUtil.addClass(newShadow, classToAdd); |
| } |
| this._shadow = newShadow; |
| |
| |
| if (options.opacity < 1) { |
| this._updateOpacity(); |
| } |
| |
| |
| var panes = this._map._panes; |
| |
| if (addIcon) { |
| panes.markerPane.appendChild(this._icon); |
| } |
| |
| if (newShadow && addShadow) { |
| panes.shadowPane.appendChild(this._shadow); |
| } |
| }, |
| |
| _removeIcon: function () { |
| if (this.options.riseOnHover) { |
| L.DomEvent |
| .off(this._icon, 'mouseover', this._bringToFront) |
| .off(this._icon, 'mouseout', this._resetZIndex); |
| } |
| |
| this._map._panes.markerPane.removeChild(this._icon); |
| |
| this._icon = null; |
| }, |
| |
| _removeShadow: function () { |
| if (this._shadow) { |
| this._map._panes.shadowPane.removeChild(this._shadow); |
| } |
| this._shadow = null; |
| }, |
| |
| _setPos: function (pos) { |
| L.DomUtil.setPosition(this._icon, pos); |
| |
| if (this._shadow) { |
| L.DomUtil.setPosition(this._shadow, pos); |
| } |
| |
| this._zIndex = pos.y + this.options.zIndexOffset; |
| |
| this._resetZIndex(); |
| }, |
| |
| _updateZIndex: function (offset) { |
| this._icon.style.zIndex = this._zIndex + offset; |
| }, |
| |
| _animateZoom: function (opt) { |
| var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round(); |
| |
| this._setPos(pos); |
| }, |
| |
| _initInteraction: function () { |
| |
| if (!this.options.clickable) { return; } |
| |
| // TODO refactor into something shared with Map/Path/etc. to DRY it up |
| |
| var icon = this._icon, |
| events = ['dblclick', 'mousedown', 'mouseover', 'mouseout', 'contextmenu']; |
| |
| L.DomUtil.addClass(icon, 'leaflet-clickable'); |
| L.DomEvent.on(icon, 'click', this._onMouseClick, this); |
| L.DomEvent.on(icon, 'keypress', this._onKeyPress, this); |
| |
| for (var i = 0; i < events.length; i++) { |
| L.DomEvent.on(icon, events[i], this._fireMouseEvent, this); |
| } |
| |
| if (L.Handler.MarkerDrag) { |
| this.dragging = new L.Handler.MarkerDrag(this); |
| |
| if (this.options.draggable) { |
| this.dragging.enable(); |
| } |
| } |
| }, |
| |
| _onMouseClick: function (e) { |
| var wasDragged = this.dragging && this.dragging.moved(); |
| |
| if (this.hasEventListeners(e.type) || wasDragged) { |
| L.DomEvent.stopPropagation(e); |
| } |
| |
| if (wasDragged) { return; } |
| |
| if ((!this.dragging || !this.dragging._enabled) && this._map.dragging && this._map.dragging.moved()) { return; } |
| |
| this.fire(e.type, { |
| originalEvent: e, |
| latlng: this._latlng |
| }); |
| }, |
| |
| _onKeyPress: function (e) { |
| if (e.keyCode === 13) { |
| this.fire('click', { |
| originalEvent: e, |
| latlng: this._latlng |
| }); |
| } |
| }, |
| |
| _fireMouseEvent: function (e) { |
| |
| this.fire(e.type, { |
| originalEvent: e, |
| latlng: this._latlng |
| }); |
| |
| // TODO proper custom event propagation |
| // this line will always be called if marker is in a FeatureGroup |
| if (e.type === 'contextmenu' && this.hasEventListeners(e.type)) { |
| L.DomEvent.preventDefault(e); |
| } |
| if (e.type !== 'mousedown') { |
| L.DomEvent.stopPropagation(e); |
| } else { |
| L.DomEvent.preventDefault(e); |
| } |
| }, |
| |
| setOpacity: function (opacity) { |
| this.options.opacity = opacity; |
| if (this._map) { |
| this._updateOpacity(); |
| } |
| |
| return this; |
| }, |
| |
| _updateOpacity: function () { |
| L.DomUtil.setOpacity(this._icon, this.options.opacity); |
| if (this._shadow) { |
| L.DomUtil.setOpacity(this._shadow, this.options.opacity); |
| } |
| }, |
| |
| _bringToFront: function () { |
| this._updateZIndex(this.options.riseOffset); |
| }, |
| |
| _resetZIndex: function () { |
| this._updateZIndex(0); |
| } |
| }); |
| |
| L.marker = function (latlng, options) { |
| return new L.Marker(latlng, options); |
| }; |
| |
| |
| /* |
| * L.DivIcon is a lightweight HTML-based icon class (as opposed to the image-based L.Icon) |
| * to use with L.Marker. |
| */ |
| |
| L.DivIcon = L.Icon.extend({ |
| options: { |
| iconSize: [12, 12], // also can be set through CSS |
| /* |
| iconAnchor: (Point) |
| popupAnchor: (Point) |
| html: (String) |
| bgPos: (Point) |
| */ |
| className: 'leaflet-div-icon', |
| html: false |
| }, |
| |
| createIcon: function (oldIcon) { |
| var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'), |
| options = this.options; |
| |
| if (options.html !== false) { |
| div.innerHTML = options.html; |
| } else { |
| div.innerHTML = ''; |
| } |
| |
| if (options.bgPos) { |
| div.style.backgroundPosition = |
| (-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px'; |
| } |
| |
| this._setIconStyles(div, 'icon'); |
| return div; |
| }, |
| |
| createShadow: function () { |
| return null; |
| } |
| }); |
| |
| L.divIcon = function (options) { |
| return new L.DivIcon(options); |
| }; |
| |
| |
| /* |
| * L.Popup is used for displaying popups on the map. |
| */ |
| |
| L.Map.mergeOptions({ |
| closePopupOnClick: true |
| }); |
| |
| L.Popup = L.Class.extend({ |
| includes: L.Mixin.Events, |
| |
| options: { |
| minWidth: 50, |
| maxWidth: 300, |
| // maxHeight: null, |
| autoPan: true, |
| closeButton: true, |
| offset: [0, 7], |
| autoPanPadding: [5, 5], |
| // autoPanPaddingTopLeft: null, |
| // autoPanPaddingBottomRight: null, |
| keepInView: false, |
| className: '', |
| zoomAnimation: true |
| }, |
| |
| initialize: function (options, source) { |
| L.setOptions(this, options); |
| |
| this._source = source; |
| this._animated = L.Browser.any3d && this.options.zoomAnimation; |
| this._isOpen = false; |
| }, |
| |
| onAdd: function (map) { |
| this._map = map; |
| |
| if (!this._container) { |
| this._initLayout(); |
| } |
| |
| var animFade = map.options.fadeAnimation; |
| |
| if (animFade) { |
| L.DomUtil.setOpacity(this._container, 0); |
| } |
| map._panes.popupPane.appendChild(this._container); |
| |
| map.on(this._getEvents(), this); |
| |
| this.update(); |
| |
| if (animFade) { |
| L.DomUtil.setOpacity(this._container, 1); |
| } |
| |
| this.fire('open'); |
| |
| map.fire('popupopen', {popup: this}); |
| |
| if (this._source) { |
| this._source.fire('popupopen', {popup: this}); |
| } |
| }, |
| |
| addTo: function (map) { |
| map.addLayer(this); |
| return this; |
| }, |
| |
| openOn: function (map) { |
| map.openPopup(this); |
| return this; |
| }, |
| |
| onRemove: function (map) { |
| map._panes.popupPane.removeChild(this._container); |
| |
| L.Util.falseFn(this._container.offsetWidth); // force reflow |
| |
| map.off(this._getEvents(), this); |
| |
| if (map.options.fadeAnimation) { |
| L.DomUtil.setOpacity(this._container, 0); |
| } |
| |
| this._map = null; |
| |
| this.fire('close'); |
| |
| map.fire('popupclose', {popup: this}); |
| |
| if (this._source) { |
| this._source.fire('popupclose', {popup: this}); |
| } |
| }, |
| |
| getLatLng: function () { |
| return this._latlng; |
| }, |
| |
| setLatLng: function (latlng) { |
| this._latlng = L.latLng(latlng); |
| if (this._map) { |
| this._updatePosition(); |
| this._adjustPan(); |
| } |
| return this; |
| }, |
| |
| getContent: function () { |
| return this._content; |
| }, |
| |
| setContent: function (content) { |
| this._content = content; |
| this.update(); |
| return this; |
| }, |
| |
| update: function () { |
| if (!this._map) { return; } |
| |
| this._container.style.visibility = 'hidden'; |
| |
| this._updateContent(); |
| this._updateLayout(); |
| this._updatePosition(); |
| |
| this._container.style.visibility = ''; |
| |
| this._adjustPan(); |
| }, |
| |
| _getEvents: function () { |
| var events = { |
| viewreset: this._updatePosition |
| }; |
| |
| if (this._animated) { |
| events.zoomanim = this._zoomAnimation; |
| } |
| if ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) { |
| events.preclick = this._close; |
| } |
| if (this.options.keepInView) { |
| events.moveend = this._adjustPan; |
| } |
| |
| return events; |
| }, |
| |
| _close: function () { |
| if (this._map) { |
| this._map.closePopup(this); |
| } |
| }, |
| |
| _initLayout: function () { |
| var prefix = 'leaflet-popup', |
| containerClass = prefix + ' ' + this.options.className + ' leaflet-zoom-' + |
| (this._animated ? 'animated' : 'hide'), |
| container = this._container = L.DomUtil.create('div', containerClass), |
| closeButton; |
| |
| if (this.options.closeButton) { |
| closeButton = this._closeButton = |
| L.DomUtil.create('a', prefix + '-close-button', container); |
| closeButton.href = '#close'; |
| closeButton.innerHTML = '×'; |
| L.DomEvent.disableClickPropagation(closeButton); |
| |
| L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this); |
| } |
| |
| var wrapper = this._wrapper = |
| L.DomUtil.create('div', prefix + '-content-wrapper', container); |
| L.DomEvent.disableClickPropagation(wrapper); |
| |
| this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper); |
| |
| L.DomEvent.disableScrollPropagation(this._contentNode); |
| L.DomEvent.on(wrapper, 'contextmenu', L.DomEvent.stopPropagation); |
| |
| this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container); |
| this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer); |
| }, |
| |
| _updateContent: function () { |
| if (!this._content) { return; } |
| |
| if (typeof this._content === 'string') { |
| this._contentNode.innerHTML = this._content; |
| } else { |
| while (this._contentNode.hasChildNodes()) { |
| this._contentNode.removeChild(this._contentNode.firstChild); |
| } |
| this._contentNode.appendChild(this._content); |
| } |
| this.fire('contentupdate'); |
| }, |
| |
| _updateLayout: function () { |
| var container = this._contentNode, |
| style = container.style; |
| |
| style.width = ''; |
| style.whiteSpace = 'nowrap'; |
| |
| var width = container.offsetWidth; |
| width = Math.min(width, this.options.maxWidth); |
| width = Math.max(width, this.options.minWidth); |
| |
| style.width = (width + 1) + 'px'; |
| style.whiteSpace = ''; |
| |
| style.height = ''; |
| |
| var height = container.offsetHeight, |
| maxHeight = this.options.maxHeight, |
| scrolledClass = 'leaflet-popup-scrolled'; |
| |
| if (maxHeight && height > maxHeight) { |
| style.height = maxHeight + 'px'; |
| L.DomUtil.addClass(container, scrolledClass); |
| } else { |
| L.DomUtil.removeClass(container, scrolledClass); |
| } |
| |
| this._containerWidth = this._container.offsetWidth; |
| }, |
| |
| _updatePosition: function () { |
| if (!this._map) { return; } |
| |
| var pos = this._map.latLngToLayerPoint(this._latlng), |
| animated = this._animated, |
| offset = L.point(this.options.offset); |
| |
| if (animated) { |
| L.DomUtil.setPosition(this._container, pos); |
| } |
| |
| this._containerBottom = -offset.y - (animated ? 0 : pos.y); |
| this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x + (animated ? 0 : pos.x); |
| |
| // bottom position the popup in case the height of the popup changes (images loading etc) |
| this._container.style.bottom = this._containerBottom + 'px'; |
| this._container.style.left = this._containerLeft + 'px'; |
| }, |
| |
| _zoomAnimation: function (opt) { |
| var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center); |
| |
| L.DomUtil.setPosition(this._container, pos); |
| }, |
| |
| _adjustPan: function () { |
| if (!this.options.autoPan) { return; } |
| |
| var map = this._map, |
| containerHeight = this._container.offsetHeight, |
| containerWidth = this._containerWidth, |
| |
| layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom); |
| |
| if (this._animated) { |
| layerPos._add(L.DomUtil.getPosition(this._container)); |
| } |
| |
| var containerPos = map.layerPointToContainerPoint(layerPos), |
| padding = L.point(this.options.autoPanPadding), |
| paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding), |
| paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding), |
| size = map.getSize(), |
| dx = 0, |
| dy = 0; |
| |
| if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right |
| dx = containerPos.x + containerWidth - size.x + paddingBR.x; |
| } |
| if (containerPos.x - dx - paddingTL.x < 0) { // left |
| dx = containerPos.x - paddingTL.x; |
| } |
| if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom |
| dy = containerPos.y + containerHeight - size.y + paddingBR.y; |
| } |
| if (containerPos.y - dy - paddingTL.y < 0) { // top |
| dy = containerPos.y - paddingTL.y; |
| } |
| |
| if (dx || dy) { |
| map |
| .fire('autopanstart') |
| .panBy([dx, dy]); |
| } |
| }, |
| |
| _onCloseButtonClick: function (e) { |
| this._close(); |
| L.DomEvent.stop(e); |
| } |
| }); |
| |
| L.popup = function (options, source) { |
| return new L.Popup(options, source); |
| }; |
| |
| |
| L.Map.include({ |
| openPopup: function (popup, latlng, options) { // (Popup) or (String || HTMLElement, LatLng[, Object]) |
| this.closePopup(); |
| |
| if (!(popup instanceof L.Popup)) { |
| var content = popup; |
| |
| popup = new L.Popup(options) |
| .setLatLng(latlng) |
| .setContent(content); |
| } |
| popup._isOpen = true; |
| |
| this._popup = popup; |
| return this.addLayer(popup); |
| }, |
| |
| closePopup: function (popup) { |
| if (!popup || popup === this._popup) { |
| popup = this._popup; |
| this._popup = null; |
| } |
| if (popup) { |
| this.removeLayer(popup); |
| popup._isOpen = false; |
| } |
| return this; |
| } |
| }); |
| |
| |
| /* |
| * Popup extension to L.Marker, adding popup-related methods. |
| */ |
| |
| L.Marker.include({ |
| openPopup: function () { |
| if (this._popup && this._map && !this._map.hasLayer(this._popup)) { |
| this._popup.setLatLng(this._latlng); |
| this._map.openPopup(this._popup); |
| } |
| |
| return this; |
| }, |
| |
| closePopup: function () { |
| if (this._popup) { |
| this._popup._close(); |
| } |
| return this; |
| }, |
| |
| togglePopup: function () { |
| if (this._popup) { |
| if (this._popup._isOpen) { |
| this.closePopup(); |
| } else { |
| this.openPopup(); |
| } |
| } |
| return this; |
| }, |
| |
| bindPopup: function (content, options) { |
| var anchor = L.point(this.options.icon.options.popupAnchor || [0, 0]); |
| |
| anchor = anchor.add(L.Popup.prototype.options.offset); |
| |
| if (options && options.offset) { |
| anchor = anchor.add(options.offset); |
| } |
| |
| options = L.extend({offset: anchor}, options); |
| |
| if (!this._popupHandlersAdded) { |
| this |
| .on('click', this.togglePopup, this) |
| .on('remove', this.closePopup, this) |
| .on('move', this._movePopup, this); |
| this._popupHandlersAdded = true; |
| } |
| |
| if (content instanceof L.Popup) { |
| L.setOptions(content, options); |
| this._popup = content; |
| content._source = this; |
| } else { |
| this._popup = new L.Popup(options, this) |
| .setContent(content); |
| } |
| |
| return this; |
| }, |
| |
| setPopupContent: function (content) { |
| if (this._popup) { |
| this._popup.setContent(content); |
| } |
| return this; |
| }, |
| |
| unbindPopup: function () { |
| if (this._popup) { |
| this._popup = null; |
| this |
| .off('click', this.togglePopup, this) |
| .off('remove', this.closePopup, this) |
| .off('move', this._movePopup, this); |
| this._popupHandlersAdded = false; |
| } |
| return this; |
| }, |
| |
| getPopup: function () { |
| return this._popup; |
| }, |
| |
| _movePopup: function (e) { |
| this._popup.setLatLng(e.latlng); |
| } |
| }); |
| |
| |
| /* |
| * L.LayerGroup is a class to combine several layers into one so that |
| * you can manipulate the group (e.g. add/remove it) as one layer. |
| */ |
| |
| L.LayerGroup = L.Class.extend({ |
| initialize: function (layers) { |
| this._layers = {}; |
| |
| var i, len; |
| |
| if (layers) { |
| for (i = 0, len = layers.length; i < len; i++) { |
| this.addLayer(layers[i]); |
| } |
| } |
| }, |
| |
| addLayer: function (layer) { |
| var id = this.getLayerId(layer); |
| |
| this._layers[id] = layer; |
| |
| if (this._map) { |
| this._map.addLayer(layer); |
| } |
| |
| return this; |
| }, |
| |
| removeLayer: function (layer) { |
| var id = layer in this._layers ? layer : this.getLayerId(layer); |
| |
| if (this._map && this._layers[id]) { |
| this._map.removeLayer(this._layers[id]); |
| } |
| |
| delete this._layers[id]; |
| |
| return this; |
| }, |
| |
| hasLayer: function (layer) { |
| if (!layer) { return false; } |
| |
| return (layer in this._layers || this.getLayerId(layer) in this._layers); |
| }, |
| |
| clearLayers: function () { |
| this.eachLayer(this.removeLayer, this); |
| return this; |
| }, |
| |
| invoke: function (methodName) { |
| var args = Array.prototype.slice.call(arguments, 1), |
| i, layer; |
| |
| for (i in this._layers) { |
| layer = this._layers[i]; |
| |
| if (layer[methodName]) { |
| layer[methodName].apply(layer, args); |
| } |
| } |
| |
| return this; |
| }, |
| |
| onAdd: function (map) { |
| this._map = map; |
| this.eachLayer(map.addLayer, map); |
| }, |
| |
| onRemove: function (map) { |
| this.eachLayer(map.removeLayer, map); |
| this._map = null; |
| }, |
| |
| addTo: function (map) { |
| map.addLayer(this); |
| return this; |
| }, |
| |
| eachLayer: function (method, context) { |
| for (var i in this._layers) { |
| method.call(context, this._layers[i]); |
| } |
| return this; |
| }, |
| |
| getLayer: function (id) { |
| return this._layers[id]; |
| }, |
| |
| getLayers: function () { |
| var layers = []; |
| |
| for (var i in this._layers) { |
| layers.push(this._layers[i]); |
| } |
| return layers; |
| }, |
| |
| setZIndex: function (zIndex) { |
| return this.invoke('setZIndex', zIndex); |
| }, |
| |
| getLayerId: function (layer) { |
| return L.stamp(layer); |
| } |
| }); |
| |
| L.layerGroup = function (layers) { |
| return new L.LayerGroup(layers); |
| }; |
| |
| |
| /* |
| * L.FeatureGroup extends L.LayerGroup by introducing mouse events and additional methods |
| * shared between a group of interactive layers (like vectors or markers). |
| */ |
| |
| L.FeatureGroup = L.LayerGroup.extend({ |
| includes: L.Mixin.Events, |
| |
| statics: { |
| EVENTS: 'click dblclick mouseover mouseout mousemove contextmenu popupopen popupclose' |
| }, |
| |
| addLayer: function (layer) { |
| if (this.hasLayer(layer)) { |
| return this; |
| } |
| |
| if ('on' in layer) { |
| layer.on(L.FeatureGroup.EVENTS, this._propagateEvent, this); |
| } |
| |
| L.LayerGroup.prototype.addLayer.call(this, layer); |
| |
| if (this._popupContent && layer.bindPopup) { |
| layer.bindPopup(this._popupContent, this._popupOptions); |
| } |
| |
| return this.fire('layeradd', {layer: layer}); |
| }, |
| |
| removeLayer: function (layer) { |
| if (!this.hasLayer(layer)) { |
| return this; |
| } |
| if (layer in this._layers) { |
| layer = this._layers[layer]; |
| } |
| |
| if ('off' in layer) { |
| layer.off(L.FeatureGroup.EVENTS, this._propagateEvent, this); |
| } |
| |
| L.LayerGroup.prototype.removeLayer.call(this, layer); |
| |
| if (this._popupContent) { |
| this.invoke('unbindPopup'); |
| } |
| |
| return this.fire('layerremove', {layer: layer}); |
| }, |
| |
| bindPopup: function (content, options) { |
| this._popupContent = content; |
| this._popupOptions = options; |
| return this.invoke('bindPopup', content, options); |
| }, |
| |
| openPopup: function (latlng) { |
| // open popup on the first layer |
| for (var id in this._layers) { |
| this._layers[id].openPopup(latlng); |
| break; |
| } |
| return this; |
| }, |
| |
| setStyle: function (style) { |
| return this.invoke('setStyle', style); |
| }, |
| |
| bringToFront: function () { |
| return this.invoke('bringToFront'); |
| }, |
| |
| bringToBack: function () { |
| return this.invoke('bringToBack'); |
| }, |
| |
| getBounds: function () { |
| var bounds = new L.LatLngBounds(); |
| |
| this.eachLayer(function (layer) { |
| bounds.extend(layer instanceof L.Marker ? layer.getLatLng() : layer.getBounds()); |
| }); |
| |
| return bounds; |
| }, |
| |
| _propagateEvent: function (e) { |
| e = L.extend({ |
| layer: e.target, |
| target: this |
| }, e); |
| this.fire(e.type, e); |
| } |
| }); |
| |
| L.featureGroup = function (layers) { |
| return new L.FeatureGroup(layers); |
| }; |
| |
| |
| /* |
| * L.Path is a base class for rendering vector paths on a map. Inherited by Polyline, Circle, etc. |
| */ |
| |
| L.Path = L.Class.extend({ |
| includes: [L.Mixin.Events], |
| |
| statics: { |
| // how much to extend the clip area around the map view |
| // (relative to its size, e.g. 0.5 is half the screen in each direction) |
| // set it so that SVG element doesn't exceed 1280px (vectors flicker on dragend if it is) |
| CLIP_PADDING: (function () { |
| var max = L.Browser.mobile ? 1280 : 2000, |
| target = (max / Math.max(window.outerWidth, window.outerHeight) - 1) / 2; |
| return Math.max(0, Math.min(0.5, target)); |
| })() |
| }, |
| |
| options: { |
| stroke: true, |
| color: '#0033ff', |
| dashArray: null, |
| lineCap: null, |
| lineJoin: null, |
| weight: 5, |
| opacity: 0.5, |
| |
| fill: false, |
| fillColor: null, //same as color by default |
| fillOpacity: 0.2, |
| |
| clickable: true |
| }, |
| |
| initialize: function (options) { |
| L.setOptions(this, options); |
| }, |
| |
| onAdd: function (map) { |
| this._map = map; |
| |
| if (!this._container) { |
| this._initElements(); |
| this._initEvents(); |
| } |
| |
| this.projectLatlngs(); |
| this._updatePath(); |
| |
| if (this._container) { |
| this._map._pathRoot.appendChild(this._container); |
| } |
| |
| this.fire('add'); |
| |
| map.on({ |
| 'viewreset': this.projectLatlngs, |
| 'moveend': this._updatePath |
| }, this); |
| }, |
| |
| addTo: function (map) { |
| map.addLayer(this); |
| return this; |
| }, |
| |
| onRemove: function (map) { |
| map._pathRoot.removeChild(this._container); |
| |
| // Need to fire remove event before we set _map to null as the event hooks might need the object |
| this.fire('remove'); |
| this._map = null; |
| |
| if (L.Browser.vml) { |
| this._container = null; |
| this._stroke = null; |
| this._fill = null; |
| } |
| |
| map.off({ |
| 'viewreset': this.projectLatlngs, |
| 'moveend': this._updatePath |
| }, this); |
| }, |
| |
| projectLatlngs: function () { |
| // do all projection stuff here |
| }, |
| |
| setStyle: function (style) { |
| L.setOptions(this, style); |
| |
| if (this._container) { |
| this._updateStyle(); |
| } |
| |
| return this; |
| }, |
| |
| redraw: function () { |
| if (this._map) { |
| this.projectLatlngs(); |
| this._updatePath(); |
| } |
| return this; |
| } |
| }); |
| |
| L.Map.include({ |
| _updatePathViewport: function () { |
| var p = L.Path.CLIP_PADDING, |
| size = this.getSize(), |
| panePos = L.DomUtil.getPosition(this._mapPane), |
| min = panePos.multiplyBy(-1)._subtract(size.multiplyBy(p)._round()), |
| max = min.add(size.multiplyBy(1 + p * 2)._round()); |
| |
| this._pathViewport = new L.Bounds(min, max); |
| } |
| }); |
| |
| |
| /* |
| * Extends L.Path with SVG-specific rendering code. |
| */ |
| |
| L.Path.SVG_NS = 'http://www.w3.org/2000/svg'; |
| |
| L.Browser.svg = !!(document.createElementNS && document.createElementNS(L.Path.SVG_NS, 'svg').createSVGRect); |
| |
| L.Path = L.Path.extend({ |
| statics: { |
| SVG: L.Browser.svg |
| }, |
| |
| bringToFront: function () { |
| var root = this._map._pathRoot, |
| path = this._container; |
| |
| if (path && root.lastChild !== path) { |
| root.appendChild(path); |
| } |
| return this; |
| }, |
| |
| bringToBack: function () { |
| var root = this._map._pathRoot, |
| path = this._container, |
| first = root.firstChild; |
| |
| if (path && first !== path) { |
| root.insertBefore(path, first); |
| } |
| return this; |
| }, |
| |
| getPathString: function () { |
| // form path string here |
| }, |
| |
| _createElement: function (name) { |
| return document.createElementNS(L.Path.SVG_NS, name); |
| }, |
| |
| _initElements: function () { |
| this._map._initPathRoot(); |
| this._initPath(); |
| this._initStyle(); |
| }, |
| |
| _initPath: function () { |
| this._container = this._createElement('g'); |
| |
| this._path = this._createElement('path'); |
| |
| if (this.options.className) { |
| L.DomUtil.addClass(this._path, this.options.className); |
| } |
| |
| this._container.appendChild(this._path); |
| }, |
| |
| _initStyle: function () { |
| if (this.options.stroke) { |
| this._path.setAttribute('stroke-linejoin', 'round'); |
| this._path.setAttribute('stroke-linecap', 'round'); |
| } |
| if (this.options.fill) { |
| this._path.setAttribute('fill-rule', 'evenodd'); |
| } |
| if (this.options.pointerEvents) { |
| this._path.setAttribute('pointer-events', this.options.pointerEvents); |
| } |
| if (!this.options.clickable && !this.options.pointerEvents) { |
| this._path.setAttribute('pointer-events', 'none'); |
| } |
| this._updateStyle(); |
| }, |
| |
| _updateStyle: function () { |
| if (this.options.stroke) { |
| this._path.setAttribute('stroke', this.options.color); |
| this._path.setAttribute('stroke-opacity', this.options.opacity); |
| this._path.setAttribute('stroke-width', this.options.weight); |
| if (this.options.dashArray) { |
| this._path.setAttribute('stroke-dasharray', this.options.dashArray); |
| } else { |
| this._path.removeAttribute('stroke-dasharray'); |
| } |
| if (this.options.lineCap) { |
| this._path.setAttribute('stroke-linecap', this.options.lineCap); |
| } |
| if (this.options.lineJoin) { |
| this._path.setAttribute('stroke-linejoin', this.options.lineJoin); |
| } |
| } else { |
| this._path.setAttribute('stroke', 'none'); |
| } |
| if (this.options.fill) { |
| this._path.setAttribute('fill', this.options.fillColor || this.options.color); |
| this._path.setAttribute('fill-opacity', this.options.fillOpacity); |
| } else { |
| this._path.setAttribute('fill', 'none'); |
| } |
| }, |
| |
| _updatePath: function () { |
| var str = this.getPathString(); |
| if (!str) { |
| // fix webkit empty string parsing bug |
| str = 'M0 0'; |
| } |
| this._path.setAttribute('d', str); |
| }, |
| |
| // TODO remove duplication with L.Map |
| _initEvents: function () { |
| if (this.options.clickable) { |
| if (L.Browser.svg || !L.Browser.vml) { |
| L.DomUtil.addClass(this._path, 'leaflet-clickable'); |
| } |
| |
| L.DomEvent.on(this._container, 'click', this._onMouseClick, this); |
| |
| var events = ['dblclick', 'mousedown', 'mouseover', |
| 'mouseout', 'mousemove', 'contextmenu']; |
| for (var i = 0; i < events.length; i++) { |
| L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this); |
| } |
| } |
| }, |
| |
| _onMouseClick: function (e) { |
| if (this._map.dragging && this._map.dragging.moved()) { return; } |
| |
| this._fireMouseEvent(e); |
| }, |
| |
| _fireMouseEvent: function (e) { |
| if (!this._map || !this.hasEventListeners(e.type)) { return; } |
| |
| var map = this._map, |
| containerPoint = map.mouseEventToContainerPoint(e), |
| layerPoint = map.containerPointToLayerPoint(containerPoint), |
| latlng = map.layerPointToLatLng(layerPoint); |
| |
| this.fire(e.type, { |
| latlng: latlng, |
| layerPoint: layerPoint, |
| containerPoint: containerPoint, |
| originalEvent: e |
| }); |
| |
| if (e.type === 'contextmenu') { |
| L.DomEvent.preventDefault(e); |
| } |
| if (e.type !== 'mousemove') { |
| L.DomEvent.stopPropagation(e); |
| } |
| } |
| }); |
| |
| L.Map.include({ |
| _initPathRoot: function () { |
| if (!this._pathRoot) { |
| this._pathRoot = L.Path.prototype._createElement('svg'); |
| this._panes.overlayPane.appendChild(this._pathRoot); |
| |
| if (this.options.zoomAnimation && L.Browser.any3d) { |
| L.DomUtil.addClass(this._pathRoot, 'leaflet-zoom-animated'); |
| |
| this.on({ |
| 'zoomanim': this._animatePathZoom, |
| 'zoomend': this._endPathZoom |
| }); |
| } else { |
| L.DomUtil.addClass(this._pathRoot, 'leaflet-zoom-hide'); |
| } |
| |
| this.on('moveend', this._updateSvgViewport); |
| this._updateSvgViewport(); |
| } |
| }, |
| |
| _animatePathZoom: function (e) { |
| var scale = this.getZoomScale(e.zoom), |
| offset = this._getCenterOffset(e.center)._multiplyBy(-scale)._add(this._pathViewport.min); |
| |
| this._pathRoot.style[L.DomUtil.TRANSFORM] = |
| L.DomUtil.getTranslateString(offset) + ' scale(' + scale + ') '; |
| |
| this._pathZooming = true; |
| }, |
| |
| _endPathZoom: function () { |
| this._pathZooming = false; |
| }, |
| |
| _updateSvgViewport: function () { |
| |
| if (this._pathZooming) { |
| // Do not update SVGs while a zoom animation is going on otherwise the animation will break. |
| // When the zoom animation ends we will be updated again anyway |
| // This fixes the case where you do a momentum move and zoom while the move is still ongoing. |
| return; |
| } |
| |
| this._updatePathViewport(); |
| |
| var vp = this._pathViewport, |
| min = vp.min, |
| max = vp.max, |
| width = max.x - min.x, |
| height = max.y - min.y, |
| root = this._pathRoot, |
| pane = this._panes.overlayPane; |
| |
| // Hack to make flicker on drag end on mobile webkit less irritating |
| if (L.Browser.mobileWebkit) { |
| pane.removeChild(root); |
| } |
| |
| L.DomUtil.setPosition(root, min); |
| root.setAttribute('width', width); |
| root.setAttribute('height', height); |
| root.setAttribute('viewBox', [min.x, min.y, width, height].join(' ')); |
| |
| if (L.Browser.mobileWebkit) { |
| pane.appendChild(root); |
| } |
| } |
| }); |
| |
| |
| /* |
| * Popup extension to L.Path (polylines, polygons, circles), adding popup-related methods. |
| */ |
| |
| L.Path.include({ |
| |
| bindPopup: function (content, options) { |
| |
| if (content instanceof L.Popup) { |
| this._popup = content; |
| } else { |
| if (!this._popup || options) { |
| this._popup = new L.Popup(options, this); |
| } |
| this._popup.setContent(content); |
| } |
| |
| if (!this._popupHandlersAdded) { |
| this |
| .on('click', this._openPopup, this) |
| .on('remove', this.closePopup, this); |
| |
| this._popupHandlersAdded = true; |
| } |
| |
| return this; |
| }, |
| |
| unbindPopup: function () { |
| if (this._popup) { |
| this._popup = null; |
| this |
| .off('click', this._openPopup) |
| .off('remove', this.closePopup); |
| |
| this._popupHandlersAdded = false; |
| } |
| return this; |
| }, |
| |
| openPopup: function (latlng) { |
| |
| if (this._popup) { |
| // open the popup from one of the path's points if not specified |
| latlng = latlng || this._latlng || |
| this._latlngs[Math.floor(this._latlngs.length / 2)]; |
| |
| this._openPopup({latlng: latlng}); |
| } |
| |
| return this; |
| }, |
| |
| closePopup: function () { |
| if (this._popup) { |
| this._popup._close(); |
| } |
| return this; |
| }, |
| |
| _openPopup: function (e) { |
| this._popup.setLatLng(e.latlng); |
| this._map.openPopup(this._popup); |
| } |
| }); |
| |
| |
| /* |
| * Vector rendering for IE6-8 through VML. |
| * Thanks to Dmitry Baranovsky and his Raphael library for inspiration! |
| */ |
| |
| L.Browser.vml = !L.Browser.svg && (function () { |
| try { |
| var div = document.createElement('div'); |
| div.innerHTML = '<v:shape adj="1"/>'; |
| |
| var shape = div.firstChild; |
| shape.style.behavior = 'url(#default#VML)'; |
| |
| return shape && (typeof shape.adj === 'object'); |
| |
| } catch (e) { |
| return false; |
| } |
| }()); |
| |
| L.Path = L.Browser.svg || !L.Browser.vml ? L.Path : L.Path.extend({ |
| statics: { |
| VML: true, |
| CLIP_PADDING: 0.02 |
| }, |
| |
| _createElement: (function () { |
| try { |
| document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml'); |
| return function (name) { |
| return document.createElement('<lvml:' + name + ' class="lvml">'); |
| }; |
| } catch (e) { |
| return function (name) { |
| return document.createElement( |
| '<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">'); |
| }; |
| } |
| }()), |
| |
| _initPath: function () { |
| var container = this._container = this._createElement('shape'); |
| |
| L.DomUtil.addClass(container, 'leaflet-vml-shape' + |
| (this.options.className ? ' ' + this.options.className : '')); |
| |
| if (this.options.clickable) { |
| L.DomUtil.addClass(container, 'leaflet-clickable'); |
| } |
| |
| container.coordsize = '1 1'; |
| |
| this._path = this._createElement('path'); |
| container.appendChild(this._path); |
| |
| this._map._pathRoot.appendChild(container); |
| }, |
| |
| _initStyle: function () { |
| this._updateStyle(); |
| }, |
| |
| _updateStyle: function () { |
| var stroke = this._stroke, |
| fill = this._fill, |
| options = this.options, |
| container = this._container; |
| |
| container.stroked = options.stroke; |
| container.filled = options.fill; |
| |
| if (options.stroke) { |
| if (!stroke) { |
| stroke = this._stroke = this._createElement('stroke'); |
| stroke.endcap = 'round'; |
| container.appendChild(stroke); |
| } |
| stroke.weight = options.weight + 'px'; |
| stroke.color = options.color; |
| stroke.opacity = options.opacity; |
| |
| if (options.dashArray) { |
| stroke.dashStyle = L.Util.isArray(options.dashArray) ? |
| options.dashArray.join(' ') : |
| options.dashArray.replace(/( *, *)/g, ' '); |
| } else { |
| stroke.dashStyle = ''; |
| } |
| if (options.lineCap) { |
| stroke.endcap = options.lineCap.replace('butt', 'flat'); |
| } |
| if (options.lineJoin) { |
| stroke.joinstyle = options.lineJoin; |
| } |
| |
| } else if (stroke) { |
| container.removeChild(stroke); |
| this._stroke = null; |
| } |
| |
| if (options.fill) { |
| if (!fill) { |
| fill = this._fill = this._createElement('fill'); |
| container.appendChild(fill); |
| } |
| fill.color = options.fillColor || options.color; |
| fill.opacity = options.fillOpacity; |
| |
| } else if (fill) { |
| container.removeChild(fill); |
| this._fill = null; |
| } |
| }, |
| |
| _updatePath: function () { |
| var style = this._container.style; |
| |
| style.display = 'none'; |
| this._path.v = this.getPathString() + ' '; // the space fixes IE empty path string bug |
| style.display = ''; |
| } |
| }); |
| |
| L.Map.include(L.Browser.svg || !L.Browser.vml ? {} : { |
| _initPathRoot: function () { |
| if (this._pathRoot) { return; } |
| |
| var root = this._pathRoot = document.createElement('div'); |
| root.className = 'leaflet-vml-container'; |
| this._panes.overlayPane.appendChild(root); |
| |
| this.on('moveend', this._updatePathViewport); |
| this._updatePathViewport(); |
| } |
| }); |
| |
| |
| /* |
| * Vector rendering for all browsers that support canvas. |
| */ |
| |
| L.Browser.canvas = (function () { |
| return !!document.createElement('canvas').getContext; |
| }()); |
| |
| L.Path = (L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? L.Path : L.Path.extend({ |
| statics: { |
| //CLIP_PADDING: 0.02, // not sure if there's a need to set it to a small value |
| CANVAS: true, |
| SVG: false |
| }, |
| |
| redraw: function () { |
| if (this._map) { |
| this.projectLatlngs(); |
| this._requestUpdate(); |
| } |
| return this; |
| }, |
| |
| setStyle: function (style) { |
| L.setOptions(this, style); |
| |
| if (this._map) { |
| this._updateStyle(); |
| this._requestUpdate(); |
| } |
| return this; |
| }, |
| |
| onRemove: function (map) { |
| map |
| .off('viewreset', this.projectLatlngs, this) |
| .off('moveend', this._updatePath, this); |
| |
| if (this.options.clickable) { |
| this._map.off('click', this._onClick, this); |
| this._map.off('mousemove', this._onMouseMove, this); |
| } |
| |
| this._requestUpdate(); |
| |
| this.fire('remove'); |
| this._map = null; |
| }, |
| |
| _requestUpdate: function () { |
| if (this._map && !L.Path._updateRequest) { |
| L.Path._updateRequest = L.Util.requestAnimFrame(this._fireMapMoveEnd, this._map); |
| } |
| }, |
| |
| _fireMapMoveEnd: function () { |
| L.Path._updateRequest = null; |
| this.fire('moveend'); |
| }, |
| |
| _initElements: function () { |
| this._map._initPathRoot(); |
| this._ctx = this._map._canvasCtx; |
| }, |
| |
| _updateStyle: function () { |
| var options = this.options; |
| |
| if (options.stroke) { |
| this._ctx.lineWidth = options.weight; |
| this._ctx.strokeStyle = options.color; |
| } |
| if (options.fill) { |
| this._ctx.fillStyle = options.fillColor || options.color; |
| } |
| |
| if (options.lineCap) { |
| this._ctx.lineCap = options.lineCap; |
| } |
| if (options.lineJoin) { |
| this._ctx.lineJoin = options.lineJoin; |
| } |
| }, |
| |
| _drawPath: function () { |
| var i, j, len, len2, point, drawMethod; |
| |
| this._ctx.beginPath(); |
| |
| for (i = 0, len = this._parts.length; i < len; i++) { |
| for (j = 0, len2 = this._parts[i].length; j < len2; j++) { |
| point = this._parts[i][j]; |
| drawMethod = (j === 0 ? 'move' : 'line') + 'To'; |
| |
| this._ctx[drawMethod](point.x, point.y); |
| } |
| // TODO refactor ugly hack |
| if (this instanceof L.Polygon) { |
| this._ctx.closePath(); |
| } |
| } |
| }, |
| |
| _checkIfEmpty: function () { |
| return !this._parts.length; |
| }, |
| |
| _updatePath: function () { |
| if (this._checkIfEmpty()) { return; } |
| |
| var ctx = this._ctx, |
| options = this.options; |
| |
| this._drawPath(); |
| ctx.save(); |
| this._updateStyle(); |
| |
| if (options.fill) { |
| ctx.globalAlpha = options.fillOpacity; |
| ctx.fill(options.fillRule || 'evenodd'); |
| } |
| |
| if (options.stroke) { |
| ctx.globalAlpha = options.opacity; |
| ctx.stroke(); |
| } |
| |
| ctx.restore(); |
| |
| // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature |
| }, |
| |
| _initEvents: function () { |
| if (this.options.clickable) { |
| this._map.on('mousemove', this._onMouseMove, this); |
| this._map.on('click dblclick contextmenu', this._fireMouseEvent, this); |
| } |
| }, |
| |
| _fireMouseEvent: function (e) { |
| if (this._containsPoint(e.layerPoint)) { |
| this.fire(e.type, e); |
| } |
| }, |
| |
| _onMouseMove: function (e) { |
| if (!this._map || this._map._animatingZoom) { return; } |
| |
| // TODO don't do on each move |
| if (this._containsPoint(e.layerPoint)) { |
| this._ctx.canvas.style.cursor = 'pointer'; |
| this._mouseInside = true; |
| this.fire('mouseover', e); |
| |
| } else if (this._mouseInside) { |
| this._ctx.canvas.style.cursor = ''; |
| this._mouseInside = false; |
| this.fire('mouseout', e); |
| } |
| } |
| }); |
| |
| L.Map.include((L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? {} : { |
| _initPathRoot: function () { |
| var root = this._pathRoot, |
| ctx; |
| |
| if (!root) { |
| root = this._pathRoot = document.createElement('canvas'); |
| root.style.position = 'absolute'; |
| ctx = this._canvasCtx = root.getContext('2d'); |
| |
| ctx.lineCap = 'round'; |
| ctx.lineJoin = 'round'; |
| |
| this._panes.overlayPane.appendChild(root); |
| |
| if (this.options.zoomAnimation) { |
| this._pathRoot.className = 'leaflet-zoom-animated'; |
| this.on('zoomanim', this._animatePathZoom); |
| this.on('zoomend', this._endPathZoom); |
| } |
| this.on('moveend', this._updateCanvasViewport); |
| this._updateCanvasViewport(); |
| } |
| }, |
| |
| _updateCanvasViewport: function () { |
| // don't redraw while zooming. See _updateSvgViewport for more details |
| if (this._pathZooming) { return; } |
| this._updatePathViewport(); |
| |
| var vp = this._pathViewport, |
| min = vp.min, |
| size = vp.max.subtract(min), |
| root = this._pathRoot; |
| |
| //TODO check if this works properly on mobile webkit |
| L.DomUtil.setPosition(root, min); |
| root.width = size.x; |
| root.height = size.y; |
| root.getContext('2d').translate(-min.x, -min.y); |
| } |
| }); |
| |
| |
| /* |
| * L.LineUtil contains different utility functions for line segments |
| * and polylines (clipping, simplification, distances, etc.) |
| */ |
| |
| /*jshint bitwise:false */ // allow bitwise operations for this file |
| |
| L.LineUtil = { |
| |
| // Simplify polyline with vertex reduction and Douglas-Peucker simplification. |
| // Improves rendering performance dramatically by lessening the number of points to draw. |
| |
| simplify: function (/*Point[]*/ points, /*Number*/ tolerance) { |
| if (!tolerance || !points.length) { |
| return points.slice(); |
| } |
| |
| var sqTolerance = tolerance * tolerance; |
| |
| // stage 1: vertex reduction |
| points = this._reducePoints(points, sqTolerance); |
| |
| // stage 2: Douglas-Peucker simplification |
| points = this._simplifyDP(points, sqTolerance); |
| |
| return points; |
| }, |
| |
| // distance from a point to a segment between two points |
| pointToSegmentDistance: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) { |
| return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true)); |
| }, |
| |
| closestPointOnSegment: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) { |
| return this._sqClosestPointOnSegment(p, p1, p2); |
| }, |
| |
| // Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm |
| _simplifyDP: function (points, sqTolerance) { |
| |
| var len = points.length, |
| ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array, |
| markers = new ArrayConstructor(len); |
| |
| markers[0] = markers[len - 1] = 1; |
| |
| this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1); |
| |
| var i, |
| newPoints = []; |
| |
| for (i = 0; i < len; i++) { |
| if (markers[i]) { |
| newPoints.push(points[i]); |
| } |
| } |
| |
| return newPoints; |
| }, |
| |
| _simplifyDPStep: function (points, markers, sqTolerance, first, last) { |
| |
| var maxSqDist = 0, |
| index, i, sqDist; |
| |
| for (i = first + 1; i <= last - 1; i++) { |
| sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true); |
| |
| if (sqDist > maxSqDist) { |
| index = i; |
| maxSqDist = sqDist; |
| } |
| } |
| |
| if (maxSqDist > sqTolerance) { |
| markers[index] = 1; |
| |
| this._simplifyDPStep(points, markers, sqTolerance, first, index); |
| this._simplifyDPStep(points, markers, sqTolerance, index, last); |
| } |
| }, |
| |
| // reduce points that are too close to each other to a single point |
| _reducePoints: function (points, sqTolerance) { |
| var reducedPoints = [points[0]]; |
| |
| for (var i = 1, prev = 0, len = points.length; i < len; i++) { |
| if (this._sqDist(points[i], points[prev]) > sqTolerance) { |
| reducedPoints.push(points[i]); |
| prev = i; |
| } |
| } |
| if (prev < len - 1) { |
| reducedPoints.push(points[len - 1]); |
| } |
| return reducedPoints; |
| }, |
| |
| // Cohen-Sutherland line clipping algorithm. |
| // Used to avoid rendering parts of a polyline that are not currently visible. |
| |
| clipSegment: function (a, b, bounds, useLastCode) { |
| var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds), |
| codeB = this._getBitCode(b, bounds), |
| |
| codeOut, p, newCode; |
| |
| // save 2nd code to avoid calculating it on the next segment |
| this._lastCode = codeB; |
| |
| while (true) { |
| // if a,b is inside the clip window (trivial accept) |
| if (!(codeA | codeB)) { |
| return [a, b]; |
| // if a,b is outside the clip window (trivial reject) |
| } else if (codeA & codeB) { |
| return false; |
| // other cases |
| } else { |
| codeOut = codeA || codeB; |
| p = this._getEdgeIntersection(a, b, codeOut, bounds); |
| newCode = this._getBitCode(p, bounds); |
| |
| if (codeOut === codeA) { |
| a = p; |
| codeA = newCode; |
| } else { |
| b = p; |
| codeB = newCode; |
| } |
| } |
| } |
| }, |
| |
| _getEdgeIntersection: function (a, b, code, bounds) { |
| var dx = b.x - a.x, |
| dy = b.y - a.y, |
| min = bounds.min, |
| max = bounds.max; |
| |
| if (code & 8) { // top |
| return new L.Point(a.x + dx * (max.y - a.y) / dy, max.y); |
| } else if (code & 4) { // bottom |
| return new L.Point(a.x + dx * (min.y - a.y) / dy, min.y); |
| } else if (code & 2) { // right |
| return new L.Point(max.x, a.y + dy * (max.x - a.x) / dx); |
| } else if (code & 1) { // left |
| return new L.Point(min.x, a.y + dy * (min.x - a.x) / dx); |
| } |
| }, |
| |
| _getBitCode: function (/*Point*/ p, bounds) { |
| var code = 0; |
| |
| if (p.x < bounds.min.x) { // left |
| code |= 1; |
| } else if (p.x > bounds.max.x) { // right |
| code |= 2; |
| } |
| if (p.y < bounds.min.y) { // bottom |
| code |= 4; |
| } else if (p.y > bounds.max.y) { // top |
| code |= 8; |
| } |
| |
| return code; |
| }, |
| |
| // square distance (to avoid unnecessary Math.sqrt calls) |
| _sqDist: function (p1, p2) { |
| var dx = p2.x - p1.x, |
| dy = p2.y - p1.y; |
| return dx * dx + dy * dy; |
| }, |
| |
| // return closest point on segment or distance to that point |
| _sqClosestPointOnSegment: function (p, p1, p2, sqDist) { |
| var x = p1.x, |
| y = p1.y, |
| dx = p2.x - x, |
| dy = p2.y - y, |
| dot = dx * dx + dy * dy, |
| t; |
| |
| if (dot > 0) { |
| t = ((p.x - x) * dx + (p.y - y) * dy) / dot; |
| |
| if (t > 1) { |
| x = p2.x; |
| y = p2.y; |
| } else if (t > 0) { |
| x += dx * t; |
| y += dy * t; |
| } |
| } |
| |
| dx = p.x - x; |
| dy = p.y - y; |
| |
| return sqDist ? dx * dx + dy * dy : new L.Point(x, y); |
| } |
| }; |
| |
| |
| /* |
| * L.Polyline is used to display polylines on a map. |
| */ |
| |
| L.Polyline = L.Path.extend({ |
| initialize: function (latlngs, options) { |
| L.Path.prototype.initialize.call(this, options); |
| |
| this._latlngs = this._convertLatLngs(latlngs); |
| }, |
| |
| options: { |
| // how much to simplify the polyline on each zoom level |
| // more = better performance and smoother look, less = more accurate |
| smoothFactor: 1.0, |
| noClip: false |
| }, |
| |
| projectLatlngs: function () { |
| this._originalPoints = []; |
| |
| for (var i = 0, len = this._latlngs.length; i < len; i++) { |
| this._originalPoints[i] = this._map.latLngToLayerPoint(this._latlngs[i]); |
| } |
| }, |
| |
| getPathString: function () { |
| for (var i = 0, len = this._parts.length, str = ''; i < len; i++) { |
| str += this._getPathPartStr(this._parts[i]); |
| } |
| return str; |
| }, |
| |
| getLatLngs: function () { |
| return this._latlngs; |
| }, |
| |
| setLatLngs: function (latlngs) { |
| this._latlngs = this._convertLatLngs(latlngs); |
| return this.redraw(); |
| }, |
| |
| addLatLng: function (latlng) { |
| this._latlngs.push(L.latLng(latlng)); |
| return this.redraw(); |
| }, |
| |
| spliceLatLngs: function () { // (Number index, Number howMany) |
| var removed = [].splice.apply(this._latlngs, arguments); |
| this._convertLatLngs(this._latlngs, true); |
| this.redraw(); |
| return removed; |
| }, |
| |
| closestLayerPoint: function (p) { |
| var minDistance = Infinity, parts = this._parts, p1, p2, minPoint = null; |
| |
| for (var j = 0, jLen = parts.length; j < jLen; j++) { |
| var points = parts[j]; |
| for (var i = 1, len = points.length; i < len; i++) { |
| p1 = points[i - 1]; |
| p2 = points[i]; |
| var sqDist = L.LineUtil._sqClosestPointOnSegment(p, p1, p2, true); |
| if (sqDist < minDistance) { |
| minDistance = sqDist; |
| minPoint = L.LineUtil._sqClosestPointOnSegment(p, p1, p2); |
| } |
| } |
| } |
| if (minPoint) { |
| minPoint.distance = Math.sqrt(minDistance); |
| } |
| return minPoint; |
| }, |
| |
| getBounds: function () { |
| return new L.LatLngBounds(this.getLatLngs()); |
| }, |
| |
| _convertLatLngs: function (latlngs, overwrite) { |
| var i, len, target = overwrite ? latlngs : []; |
| |
| for (i = 0, len = latlngs.length; i < len; i++) { |
| if (L.Util.isArray(latlngs[i]) && typeof latlngs[i][0] !== 'number') { |
| return; |
| } |
| target[i] = L.latLng(latlngs[i]); |
| } |
| return target; |
| }, |
| |
| _initEvents: function () { |
| L.Path.prototype._initEvents.call(this); |
| }, |
| |
| _getPathPartStr: function (points) { |
| var round = L.Path.VML; |
| |
| for (var j = 0, len2 = points.length, str = '', p; j < len2; j++) { |
| p = points[j]; |
| if (round) { |
| p._round(); |
| } |
| str += (j ? 'L' : 'M') + p.x + ' ' + p.y; |
| } |
| return str; |
| }, |
| |
| _clipPoints: function () { |
| var points = this._originalPoints, |
| len = points.length, |
| i, k, segment; |
| |
| if (this.options.noClip) { |
| this._parts = [points]; |
| return; |
| } |
| |
| this._parts = []; |
| |
| var parts = this._parts, |
| vp = this._map._pathViewport, |
| lu = L.LineUtil; |
| |
| for (i = 0, k = 0; i < len - 1; i++) { |
| segment = lu.clipSegment(points[i], points[i + 1], vp, i); |
| if (!segment) { |
| continue; |
| } |
| |
| parts[k] = parts[k] || []; |
| parts[k].push(segment[0]); |
| |
| // if segment goes out of screen, or it's the last one, it's the end of the line part |
| if ((segment[1] !== points[i + 1]) || (i === len - 2)) { |
| parts[k].push(segment[1]); |
| k++; |
| } |
| } |
| }, |
| |
| // simplify each clipped part of the polyline |
| _simplifyPoints: function () { |
| var parts = this._parts, |
| lu = L.LineUtil; |
| |
| for (var i = 0, len = parts.length; i < len; i++) { |
| parts[i] = lu.simplify(parts[i], this.options.smoothFactor); |
| } |
| }, |
| |
| _updatePath: function () { |
| if (!this._map) { return; } |
| |
| this._clipPoints(); |
| this._simplifyPoints(); |
| |
| L.Path.prototype._updatePath.call(this); |
| } |
| }); |
| |
| L.polyline = function (latlngs, options) { |
| return new L.Polyline(latlngs, options); |
| }; |
| |
| |
| /* |
| * L.PolyUtil contains utility functions for polygons (clipping, etc.). |
| */ |
| |
| /*jshint bitwise:false */ // allow bitwise operations here |
| |
| L.PolyUtil = {}; |
| |
| /* |
| * Sutherland-Hodgeman polygon clipping algorithm. |
| * Used to avoid rendering parts of a polygon that are not currently visible. |
| */ |
| L.PolyUtil.clipPolygon = function (points, bounds) { |
| var clippedPoints, |
| edges = [1, 4, 2, 8], |
| i, j, k, |
| a, b, |
| len, edge, p, |
| lu = L.LineUtil; |
| |
| for (i = 0, len = points.length; i < len; i++) { |
| points[i]._code = lu._getBitCode(points[i], bounds); |
| } |
| |
| // for each edge (left, bottom, right, top) |
| for (k = 0; k < 4; k++) { |
| edge = edges[k]; |
| clippedPoints = []; |
| |
| for (i = 0, len = points.length, j = len - 1; i < len; j = i++) { |
| a = points[i]; |
| b = points[j]; |
| |
| // if a is inside the clip window |
| if (!(a._code & edge)) { |
| // if b is outside the clip window (a->b goes out of screen) |
| if (b._code & edge) { |
| p = lu._getEdgeIntersection(b, a, edge, bounds); |
| p._code = lu._getBitCode(p, bounds); |
| clippedPoints.push(p); |
| } |
| clippedPoints.push(a); |
| |
| // else if b is inside the clip window (a->b enters the screen) |
| } else if (!(b._code & edge)) { |
| p = lu._getEdgeIntersection(b, a, edge, bounds); |
| p._code = lu._getBitCode(p, bounds); |
| clippedPoints.push(p); |
| } |
| } |
| points = clippedPoints; |
| } |
| |
| return points; |
| }; |
| |
| |
| /* |
| * L.Polygon is used to display polygons on a map. |
| */ |
| |
| L.Polygon = L.Polyline.extend({ |
| options: { |
| fill: true |
| }, |
| |
| initialize: function (latlngs, options) { |
| L.Polyline.prototype.initialize.call(this, latlngs, options); |
| this._initWithHoles(latlngs); |
| }, |
| |
| _initWithHoles: function (latlngs) { |
| var i, len, hole; |
| if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) { |
| this._latlngs = this._convertLatLngs(latlngs[0]); |
| this._holes = latlngs.slice(1); |
| |
| for (i = 0, len = this._holes.length; i < len; i++) { |
| hole = this._holes[i] = this._convertLatLngs(this._holes[i]); |
| if (hole[0].equals(hole[hole.length - 1])) { |
| hole.pop(); |
| } |
| } |
| } |
| |
| // filter out last point if its equal to the first one |
| latlngs = this._latlngs; |
| |
| if (latlngs.length >= 2 && latlngs[0].equals(latlngs[latlngs.length - 1])) { |
| latlngs.pop(); |
| } |
| }, |
| |
| projectLatlngs: function () { |
| L.Polyline.prototype.projectLatlngs.call(this); |
| |
| // project polygon holes points |
| // TODO move this logic to Polyline to get rid of duplication |
| this._holePoints = []; |
| |
| if (!this._holes) { return; } |
| |
| var i, j, len, len2; |
| |
| for (i = 0, len = this._holes.length; i < len; i++) { |
| this._holePoints[i] = []; |
| |
| for (j = 0, len2 = this._holes[i].length; j < len2; j++) { |
| this._holePoints[i][j] = this._map.latLngToLayerPoint(this._holes[i][j]); |
| } |
| } |
| }, |
| |
| setLatLngs: function (latlngs) { |
| if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) { |
| this._initWithHoles(latlngs); |
| return this.redraw(); |
| } else { |
| return L.Polyline.prototype.setLatLngs.call(this, latlngs); |
| } |
| }, |
| |
| _clipPoints: function () { |
| var points = this._originalPoints, |
| newParts = []; |
| |
| this._parts = [points].concat(this._holePoints); |
| |
| if (this.options.noClip) { return; } |
| |
| for (var i = 0, len = this._parts.length; i < len; i++) { |
| var clipped = L.PolyUtil.clipPolygon(this._parts[i], this._map._pathViewport); |
| if (clipped.length) { |
| newParts.push(clipped); |
| } |
| } |
| |
| this._parts = newParts; |
| }, |
| |
| _getPathPartStr: function (points) { |
| var str = L.Polyline.prototype._getPathPartStr.call(this, points); |
| return str + (L.Browser.svg ? 'z' : 'x'); |
| } |
| }); |
| |
| L.polygon = function (latlngs, options) { |
| return new L.Polygon(latlngs, options); |
| }; |
| |
| |
| /* |
| * Contains L.MultiPolyline and L.MultiPolygon layers. |
| */ |
| |
| (function () { |
| function createMulti(Klass) { |
| |
| return L.FeatureGroup.extend({ |
| |
| initialize: function (latlngs, options) { |
| this._layers = {}; |
| this._options = options; |
| this.setLatLngs(latlngs); |
| }, |
| |
| setLatLngs: function (latlngs) { |
| var i = 0, |
| len = latlngs.length; |
| |
| this.eachLayer(function (layer) { |
| if (i < len) { |
| layer.setLatLngs(latlngs[i++]); |
| } else { |
| this.removeLayer(layer); |
| } |
| }, this); |
| |
| while (i < len) { |
| this.addLayer(new Klass(latlngs[i++], this._options)); |
| } |
| |
| return this; |
| }, |
| |
| getLatLngs: function () { |
| var latlngs = []; |
| |
| this.eachLayer(function (layer) { |
| latlngs.push(layer.getLatLngs()); |
| }); |
| |
| return latlngs; |
| } |
| }); |
| } |
| |
| L.MultiPolyline = createMulti(L.Polyline); |
| L.MultiPolygon = createMulti(L.Polygon); |
| |
| L.multiPolyline = function (latlngs, options) { |
| return new L.MultiPolyline(latlngs, options); |
| }; |
| |
| L.multiPolygon = function (latlngs, options) { |
| return new L.MultiPolygon(latlngs, options); |
| }; |
| }()); |
| |
| |
| /* |
| * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object. |
| */ |
| |
| L.Rectangle = L.Polygon.extend({ |
| initialize: function (latLngBounds, options) { |
| L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options); |
| }, |
| |
| setBounds: function (latLngBounds) { |
| this.setLatLngs(this._boundsToLatLngs(latLngBounds)); |
| }, |
| |
| _boundsToLatLngs: function (latLngBounds) { |
| latLngBounds = L.latLngBounds(latLngBounds); |
| return [ |
| latLngBounds.getSouthWest(), |
| latLngBounds.getNorthWest(), |
| latLngBounds.getNorthEast(), |
| latLngBounds.getSouthEast() |
| ]; |
| } |
| }); |
| |
| L.rectangle = function (latLngBounds, options) { |
| return new L.Rectangle(latLngBounds, options); |
| }; |
| |
| |
| /* |
| * L.Circle is a circle overlay (with a certain radius in meters). |
| */ |
| |
| L.Circle = L.Path.extend({ |
| initialize: function (latlng, radius, options) { |
| L.Path.prototype.initialize.call(this, options); |
| |
| this._latlng = L.latLng(latlng); |
| this._mRadius = radius; |
| }, |
| |
| options: { |
| fill: true |
| }, |
| |
| setLatLng: function (latlng) { |
| this._latlng = L.latLng(latlng); |
| return this.redraw(); |
| }, |
| |
| setRadius: function (radius) { |
| this._mRadius = radius; |
| return this.redraw(); |
| }, |
| |
| projectLatlngs: function () { |
| var lngRadius = this._getLngRadius(), |
| latlng = this._latlng, |
| pointLeft = this._map.latLngToLayerPoint([latlng.lat, latlng.lng - lngRadius]); |
| |
| this._point = this._map.latLngToLayerPoint(latlng); |
| this._radius = Math.max(this._point.x - pointLeft.x, 1); |
| }, |
| |
| getBounds: function () { |
| var lngRadius = this._getLngRadius(), |
| latRadius = (this._mRadius / 40075017) * 360, |
| latlng = this._latlng; |
| |
| return new L.LatLngBounds( |
| [latlng.lat - latRadius, latlng.lng - lngRadius], |
| [latlng.lat + latRadius, latlng.lng + lngRadius]); |
| }, |
| |
| getLatLng: function () { |
| return this._latlng; |
| }, |
| |
| getPathString: function () { |
| var p = this._point, |
| r = this._radius; |
| |
| if (this._checkIfEmpty()) { |
| return ''; |
| } |
| |
| if (L.Browser.svg) { |
| return 'M' + p.x + ',' + (p.y - r) + |
| 'A' + r + ',' + r + ',0,1,1,' + |
| (p.x - 0.1) + ',' + (p.y - r) + ' z'; |
| } else { |
| p._round(); |
| r = Math.round(r); |
| return 'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r + ' 0,' + (65535 * 360); |
| } |
| }, |
| |
| getRadius: function () { |
| return this._mRadius; |
| }, |
| |
| // TODO Earth hardcoded, move into projection code! |
| |
| _getLatRadius: function () { |
| return (this._mRadius / 40075017) * 360; |
| }, |
| |
| _getLngRadius: function () { |
| return this._getLatRadius() / Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat); |
| }, |
| |
| _checkIfEmpty: function () { |
| if (!this._map) { |
| return false; |
| } |
| var vp = this._map._pathViewport, |
| r = this._radius, |
| p = this._point; |
| |
| return p.x - r > vp.max.x || p.y - r > vp.max.y || |
| p.x + r < vp.min.x || p.y + r < vp.min.y; |
| } |
| }); |
| |
| L.circle = function (latlng, radius, options) { |
| return new L.Circle(latlng, radius, options); |
| }; |
| |
| |
| /* |
| * L.CircleMarker is a circle overlay with a permanent pixel radius. |
| */ |
| |
| L.CircleMarker = L.Circle.extend({ |
| options: { |
| radius: 10, |
| weight: 2 |
| }, |
| |
| initialize: function (latlng, options) { |
| L.Circle.prototype.initialize.call(this, latlng, null, options); |
| this._radius = this.options.radius; |
| }, |
| |
| projectLatlngs: function () { |
| this._point = this._map.latLngToLayerPoint(this._latlng); |
| }, |
| |
| _updateStyle : function () { |
| L.Circle.prototype._updateStyle.call(this); |
| this.setRadius(this.options.radius); |
| }, |
| |
| setLatLng: function (latlng) { |
| L.Circle.prototype.setLatLng.call(this, latlng); |
| if (this._popup && this._popup._isOpen) { |
| this._popup.setLatLng(latlng); |
| } |
| return this; |
| }, |
| |
| setRadius: function (radius) { |
| this.options.radius = this._radius = radius; |
| return this.redraw(); |
| }, |
| |
| getRadius: function () { |
| return this._radius; |
| } |
| }); |
| |
| L.circleMarker = function (latlng, options) { |
| return new L.CircleMarker(latlng, options); |
| }; |
| |
| |
| /* |
| * Extends L.Polyline to be able to manually detect clicks on Canvas-rendered polylines. |
| */ |
| |
| L.Polyline.include(!L.Path.CANVAS ? {} : { |
| _containsPoint: function (p, closed) { |
| var i, j, k, len, len2, dist, part, |
| w = this.options.weight / 2; |
| |
| if (L.Browser.touch) { |
| w += 10; // polyline click tolerance on touch devices |
| } |
| |
| for (i = 0, len = this._parts.length; i < len; i++) { |
| part = this._parts[i]; |
| for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) { |
| if (!closed && (j === 0)) { |
| continue; |
| } |
| |
| dist = L.LineUtil.pointToSegmentDistance(p, part[k], part[j]); |
| |
| if (dist <= w) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| }); |
| |
| |
| /* |
| * Extends L.Polygon to be able to manually detect clicks on Canvas-rendered polygons. |
| */ |
| |
| L.Polygon.include(!L.Path.CANVAS ? {} : { |
| _containsPoint: function (p) { |
| var inside = false, |
| part, p1, p2, |
| i, j, k, |
| len, len2; |
| |
| // TODO optimization: check if within bounds first |
| |
| if (L.Polyline.prototype._containsPoint.call(this, p, true)) { |
| // click on polygon border |
| return true; |
| } |
| |
| // ray casting algorithm for detecting if point is in polygon |
| |
| for (i = 0, len = this._parts.length; i < len; i++) { |
| part = this._parts[i]; |
| |
| for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) { |
| p1 = part[j]; |
| p2 = part[k]; |
| |
| 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)) { |
| inside = !inside; |
| } |
| } |
| } |
| |
| return inside; |
| } |
| }); |
| |
| |
| /* |
| * Extends L.Circle with Canvas-specific code. |
| */ |
| |
| L.Circle.include(!L.Path.CANVAS ? {} : { |
| _drawPath: function () { |
| var p = this._point; |
| this._ctx.beginPath(); |
| this._ctx.arc(p.x, p.y, this._radius, 0, Math.PI * 2, false); |
| }, |
| |
| _containsPoint: function (p) { |
| var center = this._point, |
| w2 = this.options.stroke ? this.options.weight / 2 : 0; |
| |
| return (p.distanceTo(center) <= this._radius + w2); |
| } |
| }); |
| |
| |
| /* |
| * CircleMarker canvas specific drawing parts. |
| */ |
| |
| L.CircleMarker.include(!L.Path.CANVAS ? {} : { |
| _updateStyle: function () { |
| L.Path.prototype._updateStyle.call(this); |
| } |
| }); |
| |
| |
| /* |
| * L.GeoJSON turns any GeoJSON data into a Leaflet layer. |
| */ |
| |
| L.GeoJSON = L.FeatureGroup.extend({ |
| |
| initialize: function (geojson, options) { |
| L.setOptions(this, options); |
| |
| this._layers = {}; |
| |
| if (geojson) { |
| this.addData(geojson); |
| } |
| }, |
| |
| addData: function (geojson) { |
| var features = L.Util.isArray(geojson) ? geojson : geojson.features, |
| i, len, feature; |
| |
| if (features) { |
| for (i = 0, len = features.length; i < len; i++) { |
| // Only add this if geometry or geometries are set and not null |
| feature = features[i]; |
| if (feature.geometries || feature.geometry || feature.features || feature.coordinates) { |
| this.addData(features[i]); |
| } |
| } |
| return this; |
| } |
| |
| var options = this.options; |
| |
| if (options.filter && !options.filter(geojson)) { return; } |
| |
| var layer = L.GeoJSON.geometryToLayer(geojson, options.pointToLayer, options.coordsToLatLng, options); |
| layer.feature = L.GeoJSON.asFeature(geojson); |
| |
| layer.defaultOptions = layer.options; |
| this.resetStyle(layer); |
| |
| if (options.onEachFeature) { |
| options.onEachFeature(geojson, layer); |
| } |
| |
| return this.addLayer(layer); |
| }, |
| |
| resetStyle: function (layer) { |
| var style = this.options.style; |
| if (style) { |
| // reset any custom styles |
| L.Util.extend(layer.options, layer.defaultOptions); |
| |
| this._setLayerStyle(layer, style); |
| } |
| }, |
| |
| setStyle: function (style) { |
| this.eachLayer(function (layer) { |
| this._setLayerStyle(layer, style); |
| }, this); |
| }, |
| |
| _setLayerStyle: function (layer, style) { |
| if (typeof style === 'function') { |
| style = style(layer.feature); |
| } |
| if (layer.setStyle) { |
| layer.setStyle(style); |
| } |
| } |
| }); |
| |
| L.extend(L.GeoJSON, { |
| geometryToLayer: function (geojson, pointToLayer, coordsToLatLng, vectorOptions) { |
| var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson, |
| coords = geometry.coordinates, |
| layers = [], |
| latlng, latlngs, i, len; |
| |
| coordsToLatLng = coordsToLatLng || this.coordsToLatLng; |
| |
| switch (geometry.type) { |
| case 'Point': |
| latlng = coordsToLatLng(coords); |
| return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng); |
| |
| case 'MultiPoint': |
| for (i = 0, len = coords.length; i < len; i++) { |
| latlng = coordsToLatLng(coords[i]); |
| layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng)); |
| } |
| return new L.FeatureGroup(layers); |
| |
| case 'LineString': |
| latlngs = this.coordsToLatLngs(coords, 0, coordsToLatLng); |
| return new L.Polyline(latlngs, vectorOptions); |
| |
| case 'Polygon': |
| if (coords.length === 2 && !coords[1].length) { |
| throw new Error('Invalid GeoJSON object.'); |
| } |
| latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng); |
| return new L.Polygon(latlngs, vectorOptions); |
| |
| case 'MultiLineString': |
| latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng); |
| return new L.MultiPolyline(latlngs, vectorOptions); |
| |
| case 'MultiPolygon': |
| latlngs = this.coordsToLatLngs(coords, 2, coordsToLatLng); |
| return new L.MultiPolygon(latlngs, vectorOptions); |
| |
| case 'GeometryCollection': |
| for (i = 0, len = geometry.geometries.length; i < len; i++) { |
| |
| layers.push(this.geometryToLayer({ |
| geometry: geometry.geometries[i], |
| type: 'Feature', |
| properties: geojson.properties |
| }, pointToLayer, coordsToLatLng, vectorOptions)); |
| } |
| return new L.FeatureGroup(layers); |
| |
| default: |
| throw new Error('Invalid GeoJSON object.'); |
| } |
| }, |
| |
| coordsToLatLng: function (coords) { // (Array[, Boolean]) -> LatLng |
| return new L.LatLng(coords[1], coords[0], coords[2]); |
| }, |
| |
| coordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) { // (Array[, Number, Function]) -> Array |
| var latlng, i, len, |
| latlngs = []; |
| |
| for (i = 0, len = coords.length; i < len; i++) { |
| latlng = levelsDeep ? |
| this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) : |
| (coordsToLatLng || this.coordsToLatLng)(coords[i]); |
| |
| latlngs.push(latlng); |
| } |
| |
| return latlngs; |
| }, |
| |
| latLngToCoords: function (latlng) { |
| var coords = [latlng.lng, latlng.lat]; |
| |
| if (latlng.alt !== undefined) { |
| coords.push(latlng.alt); |
| } |
| return coords; |
| }, |
| |
| latLngsToCoords: function (latLngs) { |
| var coords = []; |
| |
| for (var i = 0, len = latLngs.length; i < len; i++) { |
| coords.push(L.GeoJSON.latLngToCoords(latLngs[i])); |
| } |
| |
| return coords; |
| }, |
| |
| getFeature: function (layer, newGeometry) { |
| return layer.feature ? L.extend({}, layer.feature, {geometry: newGeometry}) : L.GeoJSON.asFeature(newGeometry); |
| }, |
| |
| asFeature: function (geoJSON) { |
| if (geoJSON.type === 'Feature') { |
| return geoJSON; |
| } |
| |
| return { |
| type: 'Feature', |
| properties: {}, |
| geometry: geoJSON |
| }; |
| } |
| }); |
| |
| var PointToGeoJSON = { |
| toGeoJSON: function () { |
| return L.GeoJSON.getFeature(this, { |
| type: 'Point', |
| coordinates: L.GeoJSON.latLngToCoords(this.getLatLng()) |
| }); |
| } |
| }; |
| |
| L.Marker.include(PointToGeoJSON); |
| L.Circle.include(PointToGeoJSON); |
| L.CircleMarker.include(PointToGeoJSON); |
| |
| L.Polyline.include({ |
| toGeoJSON: function () { |
| return L.GeoJSON.getFeature(this, { |
| type: 'LineString', |
| coordinates: L.GeoJSON.latLngsToCoords(this.getLatLngs()) |
| }); |
| } |
| }); |
| |
| L.Polygon.include({ |
| toGeoJSON: function () { |
| var coords = [L.GeoJSON.latLngsToCoords(this.getLatLngs())], |
| i, len, hole; |
| |
| coords[0].push(coords[0][0]); |
| |
| if (this._holes) { |
| for (i = 0, len = this._holes.length; i < len; i++) { |
| hole = L.GeoJSON.latLngsToCoords(this._holes[i]); |
| hole.push(hole[0]); |
| coords.push(hole); |
| } |
| } |
| |
| return L.GeoJSON.getFeature(this, { |
| type: 'Polygon', |
| coordinates: coords |
| }); |
| } |
| }); |
| |
| (function () { |
| function multiToGeoJSON(type) { |
| return function () { |
| var coords = []; |
| |
| this.eachLayer(function (layer) { |
| coords.push(layer.toGeoJSON().geometry.coordinates); |
| }); |
| |
| return L.GeoJSON.getFeature(this, { |
| type: type, |
| coordinates: coords |
| }); |
| }; |
| } |
| |
| L.MultiPolyline.include({toGeoJSON: multiToGeoJSON('MultiLineString')}); |
| L.MultiPolygon.include({toGeoJSON: multiToGeoJSON('MultiPolygon')}); |
| |
| L.LayerGroup.include({ |
| toGeoJSON: function () { |
| |
| var geometry = this.feature && this.feature.geometry, |
| jsons = [], |
| json; |
| |
| if (geometry && geometry.type === 'MultiPoint') { |
| return multiToGeoJSON('MultiPoint').call(this); |
| } |
| |
| var isGeometryCollection = geometry && geometry.type === 'GeometryCollection'; |
| |
| this.eachLayer(function (layer) { |
| if (layer.toGeoJSON) { |
| json = layer.toGeoJSON(); |
| jsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json)); |
| } |
| }); |
| |
| if (isGeometryCollection) { |
| return L.GeoJSON.getFeature(this, { |
| geometries: jsons, |
| type: 'GeometryCollection' |
| }); |
| } |
| |
| return { |
| type: 'FeatureCollection', |
| features: jsons |
| }; |
| } |
| }); |
| }()); |
| |
| L.geoJson = function (geojson, options) { |
| return new L.GeoJSON(geojson, options); |
| }; |
| |
| |
| /* |
| * L.DomEvent contains functions for working with DOM events. |
| */ |
| |
| L.DomEvent = { |
| /* inspired by John Resig, Dean Edwards and YUI addEvent implementations */ |
| addListener: function (obj, type, fn, context) { // (HTMLElement, String, Function[, Object]) |
| |
| var id = L.stamp(fn), |
| key = '_leaflet_' + type + id, |
| handler, originalHandler, newType; |
| |
| if (obj[key]) { return this; } |
| |
| handler = function (e) { |
| return fn.call(context || obj, e || L.DomEvent._getEvent()); |
| }; |
| |
| if (L.Browser.pointer && type.indexOf('touch') === 0) { |
| return this.addPointerListener(obj, type, handler, id); |
| } |
| if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) { |
| this.addDoubleTapListener(obj, handler, id); |
| } |
| |
| if ('addEventListener' in obj) { |
| |
| if (type === 'mousewheel') { |
| obj.addEventListener('DOMMouseScroll', handler, false); |
| obj.addEventListener(type, handler, false); |
| |
| } else if ((type === 'mouseenter') || (type === 'mouseleave')) { |
| |
| originalHandler = handler; |
| newType = (type === 'mouseenter' ? 'mouseover' : 'mouseout'); |
| |
| handler = function (e) { |
| if (!L.DomEvent._checkMouse(obj, e)) { return; } |
| return originalHandler(e); |
| }; |
| |
| obj.addEventListener(newType, handler, false); |
| |
| } else if (type === 'click' && L.Browser.android) { |
| originalHandler = handler; |
| handler = function (e) { |
| return L.DomEvent._filterClick(e, originalHandler); |
| }; |
| |
| obj.addEventListener(type, handler, false); |
| } else { |
| obj.addEventListener(type, handler, false); |
| } |
| |
| } else if ('attachEvent' in obj) { |
| obj.attachEvent('on' + type, handler); |
| } |
| |
| obj[key] = handler; |
| |
| return this; |
| }, |
| |
| removeListener: function (obj, type, fn) { // (HTMLElement, String, Function) |
| |
| var id = L.stamp(fn), |
| key = '_leaflet_' + type + id, |
| handler = obj[key]; |
| |
| if (!handler) { return this; } |
| |
| if (L.Browser.pointer && type.indexOf('touch') === 0) { |
| this.removePointerListener(obj, type, id); |
| } else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) { |
| this.removeDoubleTapListener(obj, id); |
| |
| } else if ('removeEventListener' in obj) { |
| |
| if (type === 'mousewheel') { |
| obj.removeEventListener('DOMMouseScroll', handler, false); |
| obj.removeEventListener(type, handler, false); |
| |
| } else if ((type === 'mouseenter') || (type === 'mouseleave')) { |
| obj.removeEventListener((type === 'mouseenter' ? 'mouseover' : 'mouseout'), handler, false); |
| } else { |
| obj.removeEventListener(type, handler, false); |
| } |
| } else if ('detachEvent' in obj) { |
| obj.detachEvent('on' + type, handler); |
| } |
| |
| obj[key] = null; |
| |
| return this; |
| }, |
| |
| stopPropagation: function (e) { |
| |
| if (e.stopPropagation) { |
| e.stopPropagation(); |
| } else { |
| e.cancelBubble = true; |
| } |
| L.DomEvent._skipped(e); |
| |
| return this; |
| }, |
| |
| disableScrollPropagation: function (el) { |
| var stop = L.DomEvent.stopPropagation; |
| |
| return L.DomEvent |
| .on(el, 'mousewheel', stop) |
| .on(el, 'MozMousePixelScroll', stop); |
| }, |
| |
| disableClickPropagation: function (el) { |
| var stop = L.DomEvent.stopPropagation; |
| |
| for (var i = L.Draggable.START.length - 1; i >= 0; i--) { |
| L.DomEvent.on(el, L.Draggable.START[i], stop); |
| } |
| |
| return L.DomEvent |
| .on(el, 'click', L.DomEvent._fakeStop) |
| .on(el, 'dblclick', stop); |
| }, |
| |
| preventDefault: function (e) { |
| |
| if (e.preventDefault) { |
| e.preventDefault(); |
| } else { |
| e.returnValue = false; |
| } |
| return this; |
| }, |
| |
| stop: function (e) { |
| return L.DomEvent |
| .preventDefault(e) |
| .stopPropagation(e); |
| }, |
| |
| getMousePosition: function (e, container) { |
| if (!container) { |
| return new L.Point(e.clientX, e.clientY); |
| } |
| |
| var rect = container.getBoundingClientRect(); |
| |
| return new L.Point( |
| e.clientX - rect.left - container.clientLeft, |
| e.clientY - rect.top - container.clientTop); |
| }, |
| |
| getWheelDelta: function (e) { |
| |
| var delta = 0; |
| |
| if (e.wheelDelta) { |
| delta = e.wheelDelta / 120; |
| } |
| if (e.detail) { |
| delta = -e.detail / 3; |
| } |
| return delta; |
| }, |
| |
| _skipEvents: {}, |
| |
| _fakeStop: function (e) { |
| // fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e) |
| L.DomEvent._skipEvents[e.type] = true; |
| }, |
| |
| _skipped: function (e) { |
| var skipped = this._skipEvents[e.type]; |
| // reset when checking, as it's only used in map container and propagates outside of the map |
| this._skipEvents[e.type] = false; |
| return skipped; |
| }, |
| |
| // check if element really left/entered the event target (for mouseenter/mouseleave) |
| _checkMouse: function (el, e) { |
| |
| var related = e.relatedTarget; |
| |
| if (!related) { return true; } |
| |
| try { |
| while (related && (related !== el)) { |
| related = related.parentNode; |
| } |
| } catch (err) { |
| return false; |
| } |
| return (related !== el); |
| }, |
| |
| _getEvent: function () { // evil magic for IE |
| /*jshint noarg:false */ |
| var e = window.event; |
| if (!e) { |
| var caller = arguments.callee.caller; |
| while (caller) { |
| e = caller['arguments'][0]; |
| if (e && window.Event === e.constructor) { |
| break; |
| } |
| caller = caller.caller; |
| } |
| } |
| return e; |
| }, |
| |
| // this is a horrible workaround for a bug in Android where a single touch triggers two click events |
| _filterClick: function (e, handler) { |
| var timeStamp = (e.timeStamp || e.originalEvent.timeStamp), |
| elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick); |
| |
| // are they closer together than 500ms yet more than 100ms? |
| // Android typically triggers them ~300ms apart while multiple listeners |
| // on the same event should be triggered far faster; |
| // or check if click is simulated on the element, and if it is, reject any non-simulated events |
| |
| if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) { |
| L.DomEvent.stop(e); |
| return; |
| } |
| L.DomEvent._lastClick = timeStamp; |
| |
| return handler(e); |
| } |
| }; |
| |
| L.DomEvent.on = L.DomEvent.addListener; |
| L.DomEvent.off = L.DomEvent.removeListener; |
| |
| |
| /* |
| * L.Draggable allows you to add dragging capabilities to any element. Supports mobile devices too. |
| */ |
| |
| L.Draggable = L.Class.extend({ |
| includes: L.Mixin.Events, |
| |
| statics: { |
| START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'], |
| END: { |
| mousedown: 'mouseup', |
| touchstart: 'touchend', |
| pointerdown: 'touchend', |
| MSPointerDown: 'touchend' |
| }, |
| MOVE: { |
| mousedown: 'mousemove', |
| touchstart: 'touchmove', |
| pointerdown: 'touchmove', |
| MSPointerDown: 'touchmove' |
| } |
| }, |
| |
| initialize: function (element, dragStartTarget) { |
| this._element = element; |
| this._dragStartTarget = dragStartTarget || element; |
| }, |
| |
| enable: function () { |
| if (this._enabled) { return; } |
| |
| for (var i = L.Draggable.START.length - 1; i >= 0; i--) { |
| L.DomEvent.on(this._dragStartTarget, L.Draggable.START[i], this._onDown, this); |
| } |
| |
| this._enabled = true; |
| }, |
| |
| disable: function () { |
| if (!this._enabled) { return; } |
| |
| for (var i = L.Draggable.START.length - 1; i >= 0; i--) { |
| L.DomEvent.off(this._dragStartTarget, L.Draggable.START[i], this._onDown, this); |
| } |
| |
| this._enabled = false; |
| this._moved = false; |
| }, |
| |
| _onDown: function (e) { |
| this._moved = false; |
| |
| if (e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; } |
| |
| L.DomEvent.stopPropagation(e); |
| |
| if (L.Draggable._disabled) { return; } |
| |
| L.DomUtil.disableImageDrag(); |
| L.DomUtil.disableTextSelection(); |
| |
| if (this._moving) { return; } |
| |
| var first = e.touches ? e.touches[0] : e; |
| |
| this._startPoint = new L.Point(first.clientX, first.clientY); |
| this._startPos = this._newPos = L.DomUtil.getPosition(this._element); |
| |
| L.DomEvent |
| .on(document, L.Draggable.MOVE[e.type], this._onMove, this) |
| .on(document, L.Draggable.END[e.type], this._onUp, this); |
| }, |
| |
| _onMove: function (e) { |
| if (e.touches && e.touches.length > 1) { |
| this._moved = true; |
| return; |
| } |
| |
| var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e), |
| newPoint = new L.Point(first.clientX, first.clientY), |
| offset = newPoint.subtract(this._startPoint); |
| |
| if (!offset.x && !offset.y) { return; } |
| if (L.Browser.touch && Math.abs(offset.x) + Math.abs(offset.y) < 3) { return; } |
| |
| L.DomEvent.preventDefault(e); |
| |
| if (!this._moved) { |
| this.fire('dragstart'); |
| |
| this._moved = true; |
| this._startPos = L.DomUtil.getPosition(this._element).subtract(offset); |
| |
| L.DomUtil.addClass(document.body, 'leaflet-dragging'); |
| this._lastTarget = e.target || e.srcElement; |
| L.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target'); |
| } |
| |
| this._newPos = this._startPos.add(offset); |
| this._moving = true; |
| |
| L.Util.cancelAnimFrame(this._animRequest); |
| this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true, this._dragStartTarget); |
| }, |
| |
| _updatePosition: function () { |
| this.fire('predrag'); |
| L.DomUtil.setPosition(this._element, this._newPos); |
| this.fire('drag'); |
| }, |
| |
| _onUp: function () { |
| L.DomUtil.removeClass(document.body, 'leaflet-dragging'); |
| |
| if (this._lastTarget) { |
| L.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target'); |
| this._lastTarget = null; |
| } |
| |
| for (var i in L.Draggable.MOVE) { |
| L.DomEvent |
| .off(document, L.Draggable.MOVE[i], this._onMove) |
| .off(document, L.Draggable.END[i], this._onUp); |
| } |
| |
| L.DomUtil.enableImageDrag(); |
| L.DomUtil.enableTextSelection(); |
| |
| if (this._moved && this._moving) { |
| // ensure drag is not fired after dragend |
| L.Util.cancelAnimFrame(this._animRequest); |
| |
| this.fire('dragend', { |
| distance: this._newPos.distanceTo(this._startPos) |
| }); |
| } |
| |
| this._moving = false; |
| } |
| }); |
| |
| |
| /* |
| L.Handler is a base class for handler classes that are used internally to inject |
| interaction features like dragging to classes like Map and Marker. |
| */ |
| |
| L.Handler = L.Class.extend({ |
| initialize: function (map) { |
| this._map = map; |
| }, |
| |
| enable: function () { |
| if (this._enabled) { return; } |
| |
| this._enabled = true; |
| this.addHooks(); |
| }, |
| |
| disable: function () { |
| if (!this._enabled) { return; } |
| |
| this._enabled = false; |
| this.removeHooks(); |
| }, |
| |
| enabled: function () { |
| return !!this._enabled; |
| } |
| }); |
| |
| |
| /* |
| * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default. |
| */ |
| |
| L.Map.mergeOptions({ |
| dragging: true, |
| |
| inertia: !L.Browser.android23, |
| inertiaDeceleration: 3400, // px/s^2 |
| inertiaMaxSpeed: Infinity, // px/s |
| inertiaThreshold: L.Browser.touch ? 32 : 18, // ms |
| easeLinearity: 0.25, |
| |
| // TODO refactor, move to CRS |
| worldCopyJump: false |
| }); |
| |
| L.Map.Drag = L.Handler.extend({ |
| addHooks: function () { |
| if (!this._draggable) { |
| var map = this._map; |
| |
| this._draggable = new L.Draggable(map._mapPane, map._container); |
| |
| this._draggable.on({ |
| 'dragstart': this._onDragStart, |
| 'drag': this._onDrag, |
| 'dragend': this._onDragEnd |
| }, this); |
| |
| if (map.options.worldCopyJump) { |
| this._draggable.on('predrag', this._onPreDrag, this); |
| map.on('viewreset', this._onViewReset, this); |
| |
| map.whenReady(this._onViewReset, this); |
| } |
| } |
| this._draggable.enable(); |
| }, |
| |
| removeHooks: function () { |
| this._draggable.disable(); |
| }, |
| |
| moved: function () { |
| return this._draggable && this._draggable._moved; |
| }, |
| |
| _onDragStart: function () { |
| var map = this._map; |
| |
| if (map._panAnim) { |
| map._panAnim.stop(); |
| } |
| |
| map |
| .fire('movestart') |
| .fire('dragstart'); |
| |
| if (map.options.inertia) { |
| this._positions = []; |
| this._times = []; |
| } |
| }, |
| |
| _onDrag: function () { |
| if (this._map.options.inertia) { |
| var time = this._lastTime = +new Date(), |
| pos = this._lastPos = this._draggable._newPos; |
| |
| this._positions.push(pos); |
| this._times.push(time); |
| |
| if (time - this._times[0] > 200) { |
| this._positions.shift(); |
| this._times.shift(); |
| } |
| } |
| |
| this._map |
| .fire('move') |
| .fire('drag'); |
| }, |
| |
| _onViewReset: function () { |
| // TODO fix hardcoded Earth values |
| var pxCenter = this._map.getSize()._divideBy(2), |
| pxWorldCenter = this._map.latLngToLayerPoint([0, 0]); |
| |
| this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x; |
| this._worldWidth = this._map.project([0, 180]).x; |
| }, |
| |
| _onPreDrag: function () { |
| // TODO refactor to be able to adjust map pane position after zoom |
| var worldWidth = this._worldWidth, |
| halfWidth = Math.round(worldWidth / 2), |
| dx = this._initialWorldOffset, |
| x = this._draggable._newPos.x, |
| newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx, |
| newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx, |
| newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2; |
| |
| this._draggable._newPos.x = newX; |
| }, |
| |
| _onDragEnd: function (e) { |
| var map = this._map, |
| options = map.options, |
| delay = +new Date() - this._lastTime, |
| |
| noInertia = !options.inertia || delay > options.inertiaThreshold || !this._positions[0]; |
| |
| map.fire('dragend', e); |
| |
| if (noInertia) { |
| map.fire('moveend'); |
| |
| } else { |
| |
| var direction = this._lastPos.subtract(this._positions[0]), |
| duration = (this._lastTime + delay - this._times[0]) / 1000, |
| ease = options.easeLinearity, |
| |
| speedVector = direction.multiplyBy(ease / duration), |
| speed = speedVector.distanceTo([0, 0]), |
| |
| limitedSpeed = Math.min(options.inertiaMaxSpeed, speed), |
| limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed), |
| |
| decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease), |
| offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round(); |
| |
| if (!offset.x || !offset.y) { |
| map.fire('moveend'); |
| |
| } else { |
| offset = map._limitOffset(offset, map.options.maxBounds); |
| |
| L.Util.requestAnimFrame(function () { |
| map.panBy(offset, { |
| duration: decelerationDuration, |
| easeLinearity: ease, |
| noMoveStart: true |
| }); |
| }); |
| } |
| } |
| } |
| }); |
| |
| L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag); |
| |
| |
| /* |
| * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default. |
| */ |
| |
| L.Map.mergeOptions({ |
| doubleClickZoom: true |
| }); |
| |
| L.Map.DoubleClickZoom = L.Handler.extend({ |
| addHooks: function () { |
| this._map.on('dblclick', this._onDoubleClick, this); |
| }, |
| |
| removeHooks: function () { |
| this._map.off('dblclick', this._onDoubleClick, this); |
| }, |
| |
| _onDoubleClick: function (e) { |
| var map = this._map, |
| zoom = map.getZoom() + (e.originalEvent.shiftKey ? -1 : 1); |
| |
| if (map.options.doubleClickZoom === 'center') { |
| map.setZoom(zoom); |
| } else { |
| map.setZoomAround(e.containerPoint, zoom); |
| } |
| } |
| }); |
| |
| L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom); |
| |
| |
| /* |
| * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map. |
| */ |
| |
| L.Map.mergeOptions({ |
| scrollWheelZoom: true |
| }); |
| |
| L.Map.ScrollWheelZoom = L.Handler.extend({ |
| addHooks: function () { |
| L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this); |
| L.DomEvent.on(this._map._container, 'MozMousePixelScroll', L.DomEvent.preventDefault); |
| this._delta = 0; |
| }, |
| |
| removeHooks: function () { |
| L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll); |
| L.DomEvent.off(this._map._container, 'MozMousePixelScroll', L.DomEvent.preventDefault); |
| }, |
| |
| _onWheelScroll: function (e) { |
| var delta = L.DomEvent.getWheelDelta(e); |
| |
| this._delta += delta; |
| this._lastMousePos = this._map.mouseEventToContainerPoint(e); |
| |
| if (!this._startTime) { |
| this._startTime = +new Date(); |
| } |
| |
| var left = Math.max(40 - (+new Date() - this._startTime), 0); |
| |
| clearTimeout(this._timer); |
| this._timer = setTimeout(L.bind(this._performZoom, this), left); |
| |
| L.DomEvent.preventDefault(e); |
| L.DomEvent.stopPropagation(e); |
| }, |
| |
| _performZoom: function () { |
| var map = this._map, |
| delta = this._delta, |
| zoom = map.getZoom(); |
| |
| delta = delta > 0 ? Math.ceil(delta) : Math.floor(delta); |
| delta = Math.max(Math.min(delta, 4), -4); |
| delta = map._limitZoom(zoom + delta) - zoom; |
| |
| this._delta = 0; |
| this._startTime = null; |
| |
| if (!delta) { return; } |
| |
| if (map.options.scrollWheelZoom === 'center') { |
| map.setZoom(zoom + delta); |
| } else { |
| map.setZoomAround(this._lastMousePos, zoom + delta); |
| } |
| } |
| }); |
| |
| L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom); |
| |
| |
| /* |
| * Extends the event handling code with double tap support for mobile browsers. |
| */ |
| |
| L.extend(L.DomEvent, { |
| |
| _touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart', |
| _touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend', |
| |
| // inspired by Zepto touch code by Thomas Fuchs |
| addDoubleTapListener: function (obj, handler, id) { |
| var last, |
| doubleTap = false, |
| delay = 250, |
| touch, |
| pre = '_leaflet_', |
| touchstart = this._touchstart, |
| touchend = this._touchend, |
| trackedTouches = []; |
| |
| function onTouchStart(e) { |
| var count; |
| |
| if (L.Browser.pointer) { |
| trackedTouches.push(e.pointerId); |
| count = trackedTouches.length; |
| } else { |
| count = e.touches.length; |
| } |
| if (count > 1) { |
| return; |
| } |
| |
| var now = Date.now(), |
| delta = now - (last || now); |
| |
| touch = e.touches ? e.touches[0] : e; |
| doubleTap = (delta > 0 && delta <= delay); |
| last = now; |
| } |
| |
| function onTouchEnd(e) { |
| if (L.Browser.pointer) { |
| var idx = trackedTouches.indexOf(e.pointerId); |
| if (idx === -1) { |
| return; |
| } |
| trackedTouches.splice(idx, 1); |
| } |
| |
| if (doubleTap) { |
| if (L.Browser.pointer) { |
| // work around .type being readonly with MSPointer* events |
| var newTouch = { }, |
| prop; |
| |
| // jshint forin:false |
| for (var i in touch) { |
| prop = touch[i]; |
| if (typeof prop === 'function') { |
| newTouch[i] = prop.bind(touch); |
| } else { |
| newTouch[i] = prop; |
| } |
| } |
| touch = newTouch; |
| } |
| touch.type = 'dblclick'; |
| handler(touch); |
| last = null; |
| } |
| } |
| obj[pre + touchstart + id] = onTouchStart; |
| obj[pre + touchend + id] = onTouchEnd; |
| |
| // on pointer we need to listen on the document, otherwise a drag starting on the map and moving off screen |
| // will not come through to us, so we will lose track of how many touches are ongoing |
| var endElement = L.Browser.pointer ? document.documentElement : obj; |
| |
| obj.addEventListener(touchstart, onTouchStart, false); |
| endElement.addEventListener(touchend, onTouchEnd, false); |
| |
| if (L.Browser.pointer) { |
| endElement.addEventListener(L.DomEvent.POINTER_CANCEL, onTouchEnd, false); |
| } |
| |
| return this; |
| }, |
| |
| removeDoubleTapListener: function (obj, id) { |
| var pre = '_leaflet_'; |
| |
| obj.removeEventListener(this._touchstart, obj[pre + this._touchstart + id], false); |
| (L.Browser.pointer ? document.documentElement : obj).removeEventListener( |
| this._touchend, obj[pre + this._touchend + id], false); |
| |
| if (L.Browser.pointer) { |
| document.documentElement.removeEventListener(L.DomEvent.POINTER_CANCEL, obj[pre + this._touchend + id], |
| false); |
| } |
| |
| return this; |
| } |
| }); |
| |
| |
| /* |
| * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices. |
| */ |
| |
| L.extend(L.DomEvent, { |
| |
| //static |
| POINTER_DOWN: L.Browser.msPointer ? 'MSPointerDown' : 'pointerdown', |
| POINTER_MOVE: L.Browser.msPointer ? 'MSPointerMove' : 'pointermove', |
| POINTER_UP: L.Browser.msPointer ? 'MSPointerUp' : 'pointerup', |
| POINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel', |
| |
| _pointers: [], |
| _pointerDocumentListener: false, |
| |
| // Provides a touch events wrapper for (ms)pointer events. |
| // Based on changes by veproza https://github.com/CloudMade/Leaflet/pull/1019 |
| //ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890 |
| |
| addPointerListener: function (obj, type, handler, id) { |
| |
| switch (type) { |
| case 'touchstart': |
| return this.addPointerListenerStart(obj, type, handler, id); |
| case 'touchend': |
| return this.addPointerListenerEnd(obj, type, handler, id); |
| case 'touchmove': |
| return this.addPointerListenerMove(obj, type, handler, id); |
| default: |
| throw 'Unknown touch event type'; |
| } |
| }, |
| |
| addPointerListenerStart: function (obj, type, handler, id) { |
| var pre = '_leaflet_', |
| pointers = this._pointers; |
| |
| var cb = function (e) { |
| if (e.pointerType !== 'mouse' && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) { |
| L.DomEvent.preventDefault(e); |
| } |
| |
| var alreadyInArray = false; |
| for (var i = 0; i < pointers.length; i++) { |
| if (pointers[i].pointerId === e.pointerId) { |
| alreadyInArray = true; |
| break; |
| } |
| } |
| if (!alreadyInArray) { |
| pointers.push(e); |
| } |
| |
| e.touches = pointers.slice(); |
| e.changedTouches = [e]; |
| |
| handler(e); |
| }; |
| |
| obj[pre + 'touchstart' + id] = cb; |
| obj.addEventListener(this.POINTER_DOWN, cb, false); |
| |
| // need to also listen for end events to keep the _pointers list accurate |
| // this needs to be on the body and never go away |
| if (!this._pointerDocumentListener) { |
| var internalCb = function (e) { |
| for (var i = 0; i < pointers.length; i++) { |
| if (pointers[i].pointerId === e.pointerId) { |
| pointers.splice(i, 1); |
| break; |
| } |
| } |
| }; |
| //We listen on the documentElement as any drags that end by moving the touch off the screen get fired there |
| document.documentElement.addEventListener(this.POINTER_UP, internalCb, false); |
| document.documentElement.addEventListener(this.POINTER_CANCEL, internalCb, false); |
| |
| this._pointerDocumentListener = true; |
| } |
| |
| return this; |
| }, |
| |
| addPointerListenerMove: function (obj, type, handler, id) { |
| var pre = '_leaflet_', |
| touches = this._pointers; |
| |
| function cb(e) { |
| |
| // don't fire touch moves when mouse isn't down |
| if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; } |
| |
| for (var i = 0; i < touches.length; i++) { |
| if (touches[i].pointerId === e.pointerId) { |
| touches[i] = e; |
| break; |
| } |
| } |
| |
| e.touches = touches.slice(); |
| e.changedTouches = [e]; |
| |
| handler(e); |
| } |
| |
| obj[pre + 'touchmove' + id] = cb; |
| obj.addEventListener(this.POINTER_MOVE, cb, false); |
| |
| return this; |
| }, |
| |
| addPointerListenerEnd: function (obj, type, handler, id) { |
| var pre = '_leaflet_', |
| touches = this._pointers; |
| |
| var cb = function (e) { |
| for (var i = 0; i < touches.length; i++) { |
| if (touches[i].pointerId === e.pointerId) { |
| touches.splice(i, 1); |
| break; |
| } |
| } |
| |
| e.touches = touches.slice(); |
| e.changedTouches = [e]; |
| |
| handler(e); |
| }; |
| |
| obj[pre + 'touchend' + id] = cb; |
| obj.addEventListener(this.POINTER_UP, cb, false); |
| obj.addEventListener(this.POINTER_CANCEL, cb, false); |
| |
| return this; |
| }, |
| |
| removePointerListener: function (obj, type, id) { |
| var pre = '_leaflet_', |
| cb = obj[pre + type + id]; |
| |
| switch (type) { |
| case 'touchstart': |
| obj.removeEventListener(this.POINTER_DOWN, cb, false); |
| break; |
| case 'touchmove': |
| obj.removeEventListener(this.POINTER_MOVE, cb, false); |
| break; |
| case 'touchend': |
| obj.removeEventListener(this.POINTER_UP, cb, false); |
| obj.removeEventListener(this.POINTER_CANCEL, cb, false); |
| break; |
| } |
| |
| return this; |
| } |
| }); |
| |
| |
| /* |
| * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers. |
| */ |
| |
| L.Map.mergeOptions({ |
| touchZoom: L.Browser.touch && !L.Browser.android23, |
| bounceAtZoomLimits: true |
| }); |
| |
| L.Map.TouchZoom = L.Handler.extend({ |
| addHooks: function () { |
| L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this); |
| }, |
| |
| removeHooks: function () { |
| L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this); |
| }, |
| |
| _onTouchStart: function (e) { |
| var map = this._map; |
| |
| if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; } |
| |
| var p1 = map.mouseEventToLayerPoint(e.touches[0]), |
| p2 = map.mouseEventToLayerPoint(e.touches[1]), |
| viewCenter = map._getCenterLayerPoint(); |
| |
| this._startCenter = p1.add(p2)._divideBy(2); |
| this._startDist = p1.distanceTo(p2); |
| |
| this._moved = false; |
| this._zooming = true; |
| |
| this._centerOffset = viewCenter.subtract(this._startCenter); |
| |
| if (map._panAnim) { |
| map._panAnim.stop(); |
| } |
| |
| L.DomEvent |
| .on(document, 'touchmove', this._onTouchMove, this) |
| .on(document, 'touchend', this._onTouchEnd, this); |
| |
| L.DomEvent.preventDefault(e); |
| }, |
| |
| _onTouchMove: function (e) { |
| var map = this._map; |
| |
| if (!e.touches || e.touches.length !== 2 || !this._zooming) { return; } |
| |
| var p1 = map.mouseEventToLayerPoint(e.touches[0]), |
| p2 = map.mouseEventToLayerPoint(e.touches[1]); |
| |
| this._scale = p1.distanceTo(p2) / this._startDist; |
| this._delta = p1._add(p2)._divideBy(2)._subtract(this._startCenter); |
| |
| if (this._scale === 1) { return; } |
| |
| if (!map.options.bounceAtZoomLimits) { |
| if ((map.getZoom() === map.getMinZoom() && this._scale < 1) || |
| (map.getZoom() === map.getMaxZoom() && this._scale > 1)) { return; } |
| } |
| |
| if (!this._moved) { |
| L.DomUtil.addClass(map._mapPane, 'leaflet-touching'); |
| |
| map |
| .fire('movestart') |
| .fire('zoomstart'); |
| |
| this._moved = true; |
| } |
| |
| L.Util.cancelAnimFrame(this._animRequest); |
| this._animRequest = L.Util.requestAnimFrame( |
| this._updateOnMove, this, true, this._map._container); |
| |
| L.DomEvent.preventDefault(e); |
| }, |
| |
| _updateOnMove: function () { |
| var map = this._map, |
| origin = this._getScaleOrigin(), |
| center = map.layerPointToLatLng(origin), |
| zoom = map.getScaleZoom(this._scale); |
| |
| map._animateZoom(center, zoom, this._startCenter, this._scale, this._delta, false, true); |
| }, |
| |
| _onTouchEnd: function () { |
| if (!this._moved || !this._zooming) { |
| this._zooming = false; |
| return; |
| } |
| |
| var map = this._map; |
| |
| this._zooming = false; |
| L.DomUtil.removeClass(map._mapPane, 'leaflet-touching'); |
| L.Util.cancelAnimFrame(this._animRequest); |
| |
| L.DomEvent |
| .off(document, 'touchmove', this._onTouchMove) |
| .off(document, 'touchend', this._onTouchEnd); |
| |
| var origin = this._getScaleOrigin(), |
| center = map.layerPointToLatLng(origin), |
| |
| oldZoom = map.getZoom(), |
| floatZoomDelta = map.getScaleZoom(this._scale) - oldZoom, |
| roundZoomDelta = (floatZoomDelta > 0 ? |
| Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)), |
| |
| zoom = map._limitZoom(oldZoom + roundZoomDelta), |
| scale = map.getZoomScale(zoom) / this._scale; |
| |
| map._animateZoom(center, zoom, origin, scale); |
| }, |
| |
| _getScaleOrigin: function () { |
| var centerOffset = this._centerOffset.subtract(this._delta).divideBy(this._scale); |
| return this._startCenter.add(centerOffset); |
| } |
| }); |
| |
| L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom); |
| |
| |
| /* |
| * L.Map.Tap is used to enable mobile hacks like quick taps and long hold. |
| */ |
| |
| L.Map.mergeOptions({ |
| tap: true, |
| tapTolerance: 15 |
| }); |
| |
| L.Map.Tap = L.Handler.extend({ |
| addHooks: function () { |
| L.DomEvent.on(this._map._container, 'touchstart', this._onDown, this); |
| }, |
| |
| removeHooks: function () { |
| L.DomEvent.off(this._map._container, 'touchstart', this._onDown, this); |
| }, |
| |
| _onDown: function (e) { |
| if (!e.touches) { return; } |
| |
| L.DomEvent.preventDefault(e); |
| |
| this._fireClick = true; |
| |
| // don't simulate click or track longpress if more than 1 touch |
| if (e.touches.length > 1) { |
| this._fireClick = false; |
| clearTimeout(this._holdTimeout); |
| return; |
| } |
| |
| var first = e.touches[0], |
| el = first.target; |
| |
| this._startPos = this._newPos = new L.Point(first.clientX, first.clientY); |
| |
| // if touching a link, highlight it |
| if (el.tagName && el.tagName.toLowerCase() === 'a') { |
| L.DomUtil.addClass(el, 'leaflet-active'); |
| } |
| |
| // simulate long hold but setting a timeout |
| this._holdTimeout = setTimeout(L.bind(function () { |
| if (this._isTapValid()) { |
| this._fireClick = false; |
| this._onUp(); |
| this._simulateEvent('contextmenu', first); |
| } |
| }, this), 1000); |
| |
| L.DomEvent |
| .on(document, 'touchmove', this._onMove, this) |
| .on(document, 'touchend', this._onUp, this); |
| }, |
| |
| _onUp: function (e) { |
| clearTimeout(this._holdTimeout); |
| |
| L.DomEvent |
| .off(document, 'touchmove', this._onMove, this) |
| .off(document, 'touchend', this._onUp, this); |
| |
| if (this._fireClick && e && e.changedTouches) { |
| |
| var first = e.changedTouches[0], |
| el = first.target; |
| |
| if (el && el.tagName && el.tagName.toLowerCase() === 'a') { |
| L.DomUtil.removeClass(el, 'leaflet-active'); |
| } |
| |
| // simulate click if the touch didn't move too much |
| if (this._isTapValid()) { |
| this._simulateEvent('click', first); |
| } |
| } |
| }, |
| |
| _isTapValid: function () { |
| return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance; |
| }, |
| |
| _onMove: function (e) { |
| var first = e.touches[0]; |
| this._newPos = new L.Point(first.clientX, first.clientY); |
| }, |
| |
| _simulateEvent: function (type, e) { |
| var simulatedEvent = document.createEvent('MouseEvents'); |
| |
| simulatedEvent._simulated = true; |
| e.target._simulatedClick = true; |
| |
| simulatedEvent.initMouseEvent( |
| type, true, true, window, 1, |
| e.screenX, e.screenY, |
| e.clientX, e.clientY, |
| false, false, false, false, 0, null); |
| |
| e.target.dispatchEvent(simulatedEvent); |
| } |
| }); |
| |
| if (L.Browser.touch && !L.Browser.pointer) { |
| L.Map.addInitHook('addHandler', 'tap', L.Map.Tap); |
| } |
| |
| |
| /* |
| * L.Handler.ShiftDragZoom is used to add shift-drag zoom interaction to the map |
| * (zoom to a selected bounding box), enabled by default. |
| */ |
| |
| L.Map.mergeOptions({ |
| boxZoom: true |
| }); |
| |
| L.Map.BoxZoom = L.Handler.extend({ |
| initialize: function (map) { |
| this._map = map; |
| this._container = map._container; |
| this._pane = map._panes.overlayPane; |
| this._moved = false; |
| }, |
| |
| addHooks: function () { |
| L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this); |
| }, |
| |
| removeHooks: function () { |
| L.DomEvent.off(this._container, 'mousedown', this._onMouseDown); |
| this._moved = false; |
| }, |
| |
| moved: function () { |
| return this._moved; |
| }, |
| |
| _onMouseDown: function (e) { |
| this._moved = false; |
| |
| if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; } |
| |
| L.DomUtil.disableTextSelection(); |
| L.DomUtil.disableImageDrag(); |
| |
| this._startLayerPoint = this._map.mouseEventToLayerPoint(e); |
| |
| L.DomEvent |
| .on(document, 'mousemove', this._onMouseMove, this) |
| .on(document, 'mouseup', this._onMouseUp, this) |
| .on(document, 'keydown', this._onKeyDown, this); |
| }, |
| |
| _onMouseMove: function (e) { |
| if (!this._moved) { |
| this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._pane); |
| L.DomUtil.setPosition(this._box, this._startLayerPoint); |
| |
| //TODO refactor: move cursor to styles |
| this._container.style.cursor = 'crosshair'; |
| this._map.fire('boxzoomstart'); |
| } |
| |
| var startPoint = this._startLayerPoint, |
| box = this._box, |
| |
| layerPoint = this._map.mouseEventToLayerPoint(e), |
| offset = layerPoint.subtract(startPoint), |
| |
| newPos = new L.Point( |
| Math.min(layerPoint.x, startPoint.x), |
| Math.min(layerPoint.y, startPoint.y)); |
| |
| L.DomUtil.setPosition(box, newPos); |
| |
| this._moved = true; |
| |
| // TODO refactor: remove hardcoded 4 pixels |
| box.style.width = (Math.max(0, Math.abs(offset.x) - 4)) + 'px'; |
| box.style.height = (Math.max(0, Math.abs(offset.y) - 4)) + 'px'; |
| }, |
| |
| _finish: function () { |
| if (this._moved) { |
| this._pane.removeChild(this._box); |
| this._container.style.cursor = ''; |
| } |
| |
| L.DomUtil.enableTextSelection(); |
| L.DomUtil.enableImageDrag(); |
| |
| L.DomEvent |
| .off(document, 'mousemove', this._onMouseMove) |
| .off(document, 'mouseup', this._onMouseUp) |
| .off(document, 'keydown', this._onKeyDown); |
| }, |
| |
| _onMouseUp: function (e) { |
| |
| this._finish(); |
| |
| var map = this._map, |
| layerPoint = map.mouseEventToLayerPoint(e); |
| |
| if (this._startLayerPoint.equals(layerPoint)) { return; } |
| |
| var bounds = new L.LatLngBounds( |
| map.layerPointToLatLng(this._startLayerPoint), |
| map.layerPointToLatLng(layerPoint)); |
| |
| map.fitBounds(bounds); |
| |
| map.fire('boxzoomend', { |
| boxZoomBounds: bounds |
| }); |
| }, |
| |
| _onKeyDown: function (e) { |
| if (e.keyCode === 27) { |
| this._finish(); |
| } |
| } |
| }); |
| |
| L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom); |
| |
| |
| /* |
| * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default. |
| */ |
| |
| L.Map.mergeOptions({ |
| keyboard: true, |
| keyboardPanOffset: 80, |
| keyboardZoomOffset: 1 |
| }); |
| |
| L.Map.Keyboard = L.Handler.extend({ |
| |
| keyCodes: { |
| left: [37], |
| right: [39], |
| down: [40], |
| up: [38], |
| zoomIn: [187, 107, 61, 171], |
| zoomOut: [189, 109, 173] |
| }, |
| |
| initialize: function (map) { |
| this._map = map; |
| |
| this._setPanOffset(map.options.keyboardPanOffset); |
| this._setZoomOffset(map.options.keyboardZoomOffset); |
| }, |
| |
| addHooks: function () { |
| var container = this._map._container; |
| |
| // make the container focusable by tabbing |
| if (container.tabIndex === -1) { |
| container.tabIndex = '0'; |
| } |
| |
| L.DomEvent |
| .on(container, 'focus', this._onFocus, this) |
| .on(container, 'blur', this._onBlur, this) |
| .on(container, 'mousedown', this._onMouseDown, this); |
| |
| this._map |
| .on('focus', this._addHooks, this) |
| .on('blur', this._removeHooks, this); |
| }, |
| |
| removeHooks: function () { |
| this._removeHooks(); |
| |
| var container = this._map._container; |
| |
| L.DomEvent |
| .off(container, 'focus', this._onFocus, this) |
| .off(container, 'blur', this._onBlur, this) |
| .off(container, 'mousedown', this._onMouseDown, this); |
| |
| this._map |
| .off('focus', this._addHooks, this) |
| .off('blur', this._removeHooks, this); |
| }, |
| |
| _onMouseDown: function () { |
| if (this._focused) { return; } |
| |
| var body = document.body, |
| docEl = document.documentElement, |
| top = body.scrollTop || docEl.scrollTop, |
| left = body.scrollLeft || docEl.scrollLeft; |
| |
| this._map._container.focus(); |
| |
| window.scrollTo(left, top); |
| }, |
| |
| _onFocus: function () { |
| this._focused = true; |
| this._map.fire('focus'); |
| }, |
| |
| _onBlur: function () { |
| this._focused = false; |
| this._map.fire('blur'); |
| }, |
| |
| _setPanOffset: function (pan) { |
| var keys = this._panKeys = {}, |
| codes = this.keyCodes, |
| i, len; |
| |
| for (i = 0, len = codes.left.length; i < len; i++) { |
| keys[codes.left[i]] = [-1 * pan, 0]; |
| } |
| for (i = 0, len = codes.right.length; i < len; i++) { |
| keys[codes.right[i]] = [pan, 0]; |
| } |
| for (i = 0, len = codes.down.length; i < len; i++) { |
| keys[codes.down[i]] = [0, pan]; |
| } |
| for (i = 0, len = codes.up.length; i < len; i++) { |
| keys[codes.up[i]] = [0, -1 * pan]; |
| } |
| }, |
| |
| _setZoomOffset: function (zoom) { |
| var keys = this._zoomKeys = {}, |
| codes = this.keyCodes, |
| i, len; |
| |
| for (i = 0, len = codes.zoomIn.length; i < len; i++) { |
| keys[codes.zoomIn[i]] = zoom; |
| } |
| for (i = 0, len = codes.zoomOut.length; i < len; i++) { |
| keys[codes.zoomOut[i]] = -zoom; |
| } |
| }, |
| |
| _addHooks: function () { |
| L.DomEvent.on(document, 'keydown', this._onKeyDown, this); |
| }, |
| |
| _removeHooks: function () { |
| L.DomEvent.off(document, 'keydown', this._onKeyDown, this); |
| }, |
| |
| _onKeyDown: function (e) { |
| var key = e.keyCode, |
| map = this._map; |
| |
| if (key in this._panKeys) { |
| |
| if (map._panAnim && map._panAnim._inProgress) { return; } |
| |
| map.panBy(this._panKeys[key]); |
| |
| if (map.options.maxBounds) { |
| map.panInsideBounds(map.options.maxBounds); |
| } |
| |
| } else if (key in this._zoomKeys) { |
| map.setZoom(map.getZoom() + this._zoomKeys[key]); |
| |
| } else { |
| return; |
| } |
| |
| L.DomEvent.stop(e); |
| } |
| }); |
| |
| L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard); |
| |
| |
| /* |
| * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable. |
| */ |
| |
| L.Handler.MarkerDrag = L.Handler.extend({ |
| initialize: function (marker) { |
| this._marker = marker; |
| }, |
| |
| addHooks: function () { |
| var icon = this._marker._icon; |
| if (!this._draggable) { |
| this._draggable = new L.Draggable(icon, icon); |
| } |
| |
| this._draggable |
| .on('dragstart', this._onDragStart, this) |
| .on('drag', this._onDrag, this) |
| .on('dragend', this._onDragEnd, this); |
| this._draggable.enable(); |
| L.DomUtil.addClass(this._marker._icon, 'leaflet-marker-draggable'); |
| }, |
| |
| removeHooks: function () { |
| this._draggable |
| .off('dragstart', this._onDragStart, this) |
| .off('drag', this._onDrag, this) |
| .off('dragend', this._onDragEnd, this); |
| |
| this._draggable.disable(); |
| L.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable'); |
| }, |
| |
| moved: function () { |
| return this._draggable && this._draggable._moved; |
| }, |
| |
| _onDragStart: function () { |
| this._marker |
| .closePopup() |
| .fire('movestart') |
| .fire('dragstart'); |
| }, |
| |
| _onDrag: function () { |
| var marker = this._marker, |
| shadow = marker._shadow, |
| iconPos = L.DomUtil.getPosition(marker._icon), |
| latlng = marker._map.layerPointToLatLng(iconPos); |
| |
| // update shadow position |
| if (shadow) { |
| L.DomUtil.setPosition(shadow, iconPos); |
| } |
| |
| marker._latlng = latlng; |
| |
| marker |
| .fire('move', {latlng: latlng}) |
| .fire('drag'); |
| }, |
| |
| _onDragEnd: function (e) { |
| this._marker |
| .fire('moveend') |
| .fire('dragend', e); |
| } |
| }); |
| |
| |
| /* |
| * L.Control is a base class for implementing map controls. Handles positioning. |
| * All other controls extend from this class. |
| */ |
| |
| L.Control = L.Class.extend({ |
| options: { |
| position: 'topright' |
| }, |
| |
| initialize: function (options) { |
| L.setOptions(this, options); |
| }, |
| |
| getPosition: function () { |
| return this.options.position; |
| }, |
| |
| setPosition: function (position) { |
| var map = this._map; |
| |
| if (map) { |
| map.removeControl(this); |
| } |
| |
| this.options.position = position; |
| |
| if (map) { |
| map.addControl(this); |
| } |
| |
| return this; |
| }, |
| |
| getContainer: function () { |
| return this._container; |
| }, |
| |
| addTo: function (map) { |
| this._map = map; |
| |
| var container = this._container = this.onAdd(map), |
| pos = this.getPosition(), |
| corner = map._controlCorners[pos]; |
| |
| L.DomUtil.addClass(container, 'leaflet-control'); |
| |
| if (pos.indexOf('bottom') !== -1) { |
| corner.insertBefore(container, corner.firstChild); |
| } else { |
| corner.appendChild(container); |
| } |
| |
| return this; |
| }, |
| |
| removeFrom: function (map) { |
| var pos = this.getPosition(), |
| corner = map._controlCorners[pos]; |
| |
| corner.removeChild(this._container); |
| this._map = null; |
| |
| if (this.onRemove) { |
| this.onRemove(map); |
| } |
| |
| return this; |
| }, |
| |
| _refocusOnMap: function () { |
| if (this._map) { |
| this._map.getContainer().focus(); |
| } |
| } |
| }); |
| |
| L.control = function (options) { |
| return new L.Control(options); |
| }; |
| |
| |
| // adds control-related methods to L.Map |
| |
| L.Map.include({ |
| addControl: function (control) { |
| control.addTo(this); |
| return this; |
| }, |
| |
| removeControl: function (control) { |
| control.removeFrom(this); |
| return this; |
| }, |
| |
| _initControlPos: function () { |
| var corners = this._controlCorners = {}, |
| l = 'leaflet-', |
| container = this._controlContainer = |
| L.DomUtil.create('div', l + 'control-container', this._container); |
| |
| function createCorner(vSide, hSide) { |
| var className = l + vSide + ' ' + l + hSide; |
| |
| corners[vSide + hSide] = L.DomUtil.create('div', className, container); |
| } |
| |
| createCorner('top', 'left'); |
| createCorner('top', 'right'); |
| createCorner('bottom', 'left'); |
| createCorner('bottom', 'right'); |
| }, |
| |
| _clearControlPos: function () { |
| this._container.removeChild(this._controlContainer); |
| } |
| }); |
| |
| |
| /* |
| * L.Control.Zoom is used for the default zoom buttons on the map. |
| */ |
| |
| L.Control.Zoom = L.Control.extend({ |
| options: { |
| position: 'topleft', |
| zoomInText: '+', |
| zoomInTitle: 'Zoom in', |
| zoomOutText: '-', |
| zoomOutTitle: 'Zoom out' |
| }, |
| |
| onAdd: function (map) { |
| var zoomName = 'leaflet-control-zoom', |
| container = L.DomUtil.create('div', zoomName + ' leaflet-bar'); |
| |
| this._map = map; |
| |
| this._zoomInButton = this._createButton( |
| this.options.zoomInText, this.options.zoomInTitle, |
| zoomName + '-in', container, this._zoomIn, this); |
| this._zoomOutButton = this._createButton( |
| this.options.zoomOutText, this.options.zoomOutTitle, |
| zoomName + '-out', container, this._zoomOut, this); |
| |
| this._updateDisabled(); |
| map.on('zoomend zoomlevelschange', this._updateDisabled, this); |
| |
| return container; |
| }, |
| |
| onRemove: function (map) { |
| map.off('zoomend zoomlevelschange', this._updateDisabled, this); |
| }, |
| |
| _zoomIn: function (e) { |
| this._map.zoomIn(e.shiftKey ? 3 : 1); |
| }, |
| |
| _zoomOut: function (e) { |
| this._map.zoomOut(e.shiftKey ? 3 : 1); |
| }, |
| |
| _createButton: function (html, title, className, container, fn, context) { |
| var link = L.DomUtil.create('a', className, container); |
| link.innerHTML = html; |
| link.href = '#'; |
| link.title = title; |
| |
| var stop = L.DomEvent.stopPropagation; |
| |
| L.DomEvent |
| .on(link, 'click', stop) |
| .on(link, 'mousedown', stop) |
| .on(link, 'dblclick', stop) |
| .on(link, 'click', L.DomEvent.preventDefault) |
| .on(link, 'click', fn, context) |
| .on(link, 'click', this._refocusOnMap, context); |
| |
| return link; |
| }, |
| |
| _updateDisabled: function () { |
| var map = this._map, |
| className = 'leaflet-disabled'; |
| |
| L.DomUtil.removeClass(this._zoomInButton, className); |
| L.DomUtil.removeClass(this._zoomOutButton, className); |
| |
| if (map._zoom === map.getMinZoom()) { |
| L.DomUtil.addClass(this._zoomOutButton, className); |
| } |
| if (map._zoom === map.getMaxZoom()) { |
| L.DomUtil.addClass(this._zoomInButton, className); |
| } |
| } |
| }); |
| |
| L.Map.mergeOptions({ |
| zoomControl: true |
| }); |
| |
| L.Map.addInitHook(function () { |
| if (this.options.zoomControl) { |
| this.zoomControl = new L.Control.Zoom(); |
| this.addControl(this.zoomControl); |
| } |
| }); |
| |
| L.control.zoom = function (options) { |
| return new L.Control.Zoom(options); |
| }; |
| |
| |
| |
| /* |
| * L.Control.Attribution is used for displaying attribution on the map (added by default). |
| */ |
| |
| L.Control.Attribution = L.Control.extend({ |
| options: { |
| position: 'bottomright', |
| prefix: '<a href="http://leafletjs.com" title="A JS library for interactive maps">Leaflet</a>' |
| }, |
| |
| initialize: function (options) { |
| L.setOptions(this, options); |
| |
| this._attributions = {}; |
| }, |
| |
| onAdd: function (map) { |
| this._container = L.DomUtil.create('div', 'leaflet-control-attribution'); |
| L.DomEvent.disableClickPropagation(this._container); |
| |
| for (var i in map._layers) { |
| if (map._layers[i].getAttribution) { |
| this.addAttribution(map._layers[i].getAttribution()); |
| } |
| } |
| |
| map |
| .on('layeradd', this._onLayerAdd, this) |
| .on('layerremove', this._onLayerRemove, this); |
| |
| this._update(); |
| |
| return this._container; |
| }, |
| |
| onRemove: function (map) { |
| map |
| .off('layeradd', this._onLayerAdd) |
| .off('layerremove', this._onLayerRemove); |
| |
| }, |
| |
| setPrefix: function (prefix) { |
| this.options.prefix = prefix; |
| this._update(); |
| return this; |
| }, |
| |
| addAttribution: function (text) { |
| if (!text) { return; } |
| |
| if (!this._attributions[text]) { |
| this._attributions[text] = 0; |
| } |
| this._attributions[text]++; |
| |
| this._update(); |
| |
| return this; |
| }, |
| |
| removeAttribution: function (text) { |
| if (!text) { return; } |
| |
| if (this._attributions[text]) { |
| this._attributions[text]--; |
| this._update(); |
| } |
| |
| return this; |
| }, |
| |
| _update: function () { |
| if (!this._map) { return; } |
| |
| var attribs = []; |
| |
| for (var i in this._attributions) { |
| if (this._attributions[i]) { |
| attribs.push(i); |
| } |
| } |
| |
| var prefixAndAttribs = []; |
| |
| if (this.options.prefix) { |
| prefixAndAttribs.push(this.options.prefix); |
| } |
| if (attribs.length) { |
| prefixAndAttribs.push(attribs.join(', ')); |
| } |
| |
| this._container.innerHTML = prefixAndAttribs.join(' | '); |
| }, |
| |
| _onLayerAdd: function (e) { |
| if (e.layer.getAttribution) { |
| this.addAttribution(e.layer.getAttribution()); |
| } |
| }, |
| |
| _onLayerRemove: function (e) { |
| if (e.layer.getAttribution) { |
| this.removeAttribution(e.layer.getAttribution()); |
| } |
| } |
| }); |
| |
| L.Map.mergeOptions({ |
| attributionControl: true |
| }); |
| |
| L.Map.addInitHook(function () { |
| if (this.options.attributionControl) { |
| this.attributionControl = (new L.Control.Attribution()).addTo(this); |
| } |
| }); |
| |
| L.control.attribution = function (options) { |
| return new L.Control.Attribution(options); |
| }; |
| |
| |
| /* |
| * L.Control.Scale is used for displaying metric/imperial scale on the map. |
| */ |
| |
| L.Control.Scale = L.Control.extend({ |
| options: { |
| position: 'bottomleft', |
| maxWidth: 100, |
| metric: true, |
| imperial: true, |
| updateWhenIdle: false |
| }, |
| |
| onAdd: function (map) { |
| this._map = map; |
| |
| var className = 'leaflet-control-scale', |
| container = L.DomUtil.create('div', className), |
| options = this.options; |
| |
| this._addScales(options, className, container); |
| |
| map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this); |
| map.whenReady(this._update, this); |
| |
| return container; |
| }, |
| |
| onRemove: function (map) { |
| map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this); |
| }, |
| |
| _addScales: function (options, className, container) { |
| if (options.metric) { |
| this._mScale = L.DomUtil.create('div', className + '-line', container); |
| } |
| if (options.imperial) { |
| this._iScale = L.DomUtil.create('div', className + '-line', container); |
| } |
| }, |
| |
| _update: function () { |
| var bounds = this._map.getBounds(), |
| centerLat = bounds.getCenter().lat, |
| halfWorldMeters = 6378137 * Math.PI * Math.cos(centerLat * Math.PI / 180), |
| dist = halfWorldMeters * (bounds.getNorthEast().lng - bounds.getSouthWest().lng) / 180, |
| |
| size = this._map.getSize(), |
| options = this.options, |
| maxMeters = 0; |
| |
| if (size.x > 0) { |
| maxMeters = dist * (options.maxWidth / size.x); |
| } |
| |
| this._updateScales(options, maxMeters); |
| }, |
| |
| _updateScales: function (options, maxMeters) { |
| if (options.metric && maxMeters) { |
| this._updateMetric(maxMeters); |
| } |
| |
| if (options.imperial && maxMeters) { |
| this._updateImperial(maxMeters); |
| } |
| }, |
| |
| _updateMetric: function (maxMeters) { |
| var meters = this._getRoundNum(maxMeters); |
| |
| this._mScale.style.width = this._getScaleWidth(meters / maxMeters) + 'px'; |
| this._mScale.innerHTML = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km'; |
| }, |
| |
| _updateImperial: function (maxMeters) { |
| var maxFeet = maxMeters * 3.2808399, |
| scale = this._iScale, |
| maxMiles, miles, feet; |
| |
| if (maxFeet > 5280) { |
| maxMiles = maxFeet / 5280; |
| miles = this._getRoundNum(maxMiles); |
| |
| scale.style.width = this._getScaleWidth(miles / maxMiles) + 'px'; |
| scale.innerHTML = miles + ' mi'; |
| |
| } else { |
| feet = this._getRoundNum(maxFeet); |
| |
| scale.style.width = this._getScaleWidth(feet / maxFeet) + 'px'; |
| scale.innerHTML = feet + ' ft'; |
| } |
| }, |
| |
| _getScaleWidth: function (ratio) { |
| return Math.round(this.options.maxWidth * ratio) - 10; |
| }, |
| |
| _getRoundNum: function (num) { |
| var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1), |
| d = num / pow10; |
| |
| d = d >= 10 ? 10 : d >= 5 ? 5 : d >= 3 ? 3 : d >= 2 ? 2 : 1; |
| |
| return pow10 * d; |
| } |
| }); |
| |
| L.control.scale = function (options) { |
| return new L.Control.Scale(options); |
| }; |
| |
| |
| /* |
| * L.Control.Layers is a control to allow users to switch between different layers on the map. |
| */ |
| |
| L.Control.Layers = L.Control.extend({ |
| options: { |
| collapsed: true, |
| position: 'topright', |
| autoZIndex: true |
| }, |
| |
| initialize: function (baseLayers, overlays, options) { |
| L.setOptions(this, options); |
| |
| this._layers = {}; |
| this._lastZIndex = 0; |
| this._handlingClick = false; |
| |
| for (var i in baseLayers) { |
| this._addLayer(baseLayers[i], i); |
| } |
| |
| for (i in overlays) { |
| this._addLayer(overlays[i], i, true); |
| } |
| }, |
| |
| onAdd: function (map) { |
| this._initLayout(); |
| this._update(); |
| |
| map |
| .on('layeradd', this._onLayerChange, this) |
| .on('layerremove', this._onLayerChange, this); |
| |
| return this._container; |
| }, |
| |
| onRemove: function (map) { |
| map |
| .off('layeradd', this._onLayerChange, this) |
| .off('layerremove', this._onLayerChange, this); |
| }, |
| |
| addBaseLayer: function (layer, name) { |
| this._addLayer(layer, name); |
| this._update(); |
| return this; |
| }, |
| |
| addOverlay: function (layer, name) { |
| this._addLayer(layer, name, true); |
| this._update(); |
| return this; |
| }, |
| |
| removeLayer: function (layer) { |
| var id = L.stamp(layer); |
| delete this._layers[id]; |
| this._update(); |
| return this; |
| }, |
| |
| _initLayout: function () { |
| var className = 'leaflet-control-layers', |
| container = this._container = L.DomUtil.create('div', className); |
| |
| //Makes this work on IE10 Touch devices by stopping it from firing a mouseout event when the touch is released |
| container.setAttribute('aria-haspopup', true); |
| |
| if (!L.Browser.touch) { |
| L.DomEvent |
| .disableClickPropagation(container) |
| .disableScrollPropagation(container); |
| } else { |
| L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation); |
| } |
| |
| var form = this._form = L.DomUtil.create('form', className + '-list'); |
| |
| if (this.options.collapsed) { |
| if (!L.Browser.android) { |
| L.DomEvent |
| .on(container, 'mouseover', this._expand, this) |
| .on(container, 'mouseout', this._collapse, this); |
| } |
| var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container); |
| link.href = '#'; |
| link.title = 'Layers'; |
| |
| if (L.Browser.touch) { |
| L.DomEvent |
| .on(link, 'click', L.DomEvent.stop) |
| .on(link, 'click', this._expand, this); |
| } |
| else { |
| L.DomEvent.on(link, 'focus', this._expand, this); |
| } |
| //Work around for Firefox android issue https://github.com/Leaflet/Leaflet/issues/2033 |
| L.DomEvent.on(form, 'click', function () { |
| setTimeout(L.bind(this._onInputClick, this), 0); |
| }, this); |
| |
| this._map.on('click', this._collapse, this); |
| // TODO keyboard accessibility |
| } else { |
| this._expand(); |
| } |
| |
| this._baseLayersList = L.DomUtil.create('div', className + '-base', form); |
| this._separator = L.DomUtil.create('div', className + '-separator', form); |
| this._overlaysList = L.DomUtil.create('div', className + '-overlays', form); |
| |
| container.appendChild(form); |
| }, |
| |
| _addLayer: function (layer, name, overlay) { |
| var id = L.stamp(layer); |
| |
| this._layers[id] = { |
| layer: layer, |
| name: name, |
| overlay: overlay |
| }; |
| |
| if (this.options.autoZIndex && layer.setZIndex) { |
| this._lastZIndex++; |
| layer.setZIndex(this._lastZIndex); |
| } |
| }, |
| |
| _update: function () { |
| if (!this._container) { |
| return; |
| } |
| |
| this._baseLayersList.innerHTML = ''; |
| this._overlaysList.innerHTML = ''; |
| |
| var baseLayersPresent = false, |
| overlaysPresent = false, |
| i, obj; |
| |
| for (i in this._layers) { |
| obj = this._layers[i]; |
| this._addItem(obj); |
| overlaysPresent = overlaysPresent || obj.overlay; |
| baseLayersPresent = baseLayersPresent || !obj.overlay; |
| } |
| |
| this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none'; |
| }, |
| |
| _onLayerChange: function (e) { |
| var obj = this._layers[L.stamp(e.layer)]; |
| |
| if (!obj) { return; } |
| |
| if (!this._handlingClick) { |
| this._update(); |
| } |
| |
| var type = obj.overlay ? |
| (e.type === 'layeradd' ? 'overlayadd' : 'overlayremove') : |
| (e.type === 'layeradd' ? 'baselayerchange' : null); |
| |
| if (type) { |
| this._map.fire(type, obj); |
| } |
| }, |
| |
| // IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe) |
| _createRadioElement: function (name, checked) { |
| |
| var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' + name + '"'; |
| if (checked) { |
| radioHtml += ' checked="checked"'; |
| } |
| radioHtml += '/>'; |
| |
| var radioFragment = document.createElement('div'); |
| radioFragment.innerHTML = radioHtml; |
| |
| return radioFragment.firstChild; |
| }, |
| |
| _addItem: function (obj) { |
| var label = document.createElement('label'), |
| input, |
| checked = this._map.hasLayer(obj.layer); |
| |
| if (obj.overlay) { |
| input = document.createElement('input'); |
| input.type = 'checkbox'; |
| input.className = 'leaflet-control-layers-selector'; |
| input.defaultChecked = checked; |
| } else { |
| input = this._createRadioElement('leaflet-base-layers', checked); |
| } |
| |
| input.layerId = L.stamp(obj.layer); |
| |
| L.DomEvent.on(input, 'click', this._onInputClick, this); |
| |
| var name = document.createElement('span'); |
| name.innerHTML = ' ' + obj.name; |
| |
| label.appendChild(input); |
| label.appendChild(name); |
| |
| var container = obj.overlay ? this._overlaysList : this._baseLayersList; |
| container.appendChild(label); |
| |
| return label; |
| }, |
| |
| _onInputClick: function () { |
| var i, input, obj, |
| inputs = this._form.getElementsByTagName('input'), |
| inputsLen = inputs.length; |
| |
| this._handlingClick = true; |
| |
| for (i = 0; i < inputsLen; i++) { |
| input = inputs[i]; |
| obj = this._layers[input.layerId]; |
| |
| if (input.checked && !this._map.hasLayer(obj.layer)) { |
| this._map.addLayer(obj.layer); |
| |
| } else if (!input.checked && this._map.hasLayer(obj.layer)) { |
| this._map.removeLayer(obj.layer); |
| } |
| } |
| |
| this._handlingClick = false; |
| |
| this._refocusOnMap(); |
| }, |
| |
| _expand: function () { |
| L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded'); |
| }, |
| |
| _collapse: function () { |
| this._container.className = this._container.className.replace(' leaflet-control-layers-expanded', ''); |
| } |
| }); |
| |
| L.control.layers = function (baseLayers, overlays, options) { |
| return new L.Control.Layers(baseLayers, overlays, options); |
| }; |
| |
| |
| /* |
| * L.PosAnimation is used by Leaflet internally for pan animations. |
| */ |
| |
| L.PosAnimation = L.Class.extend({ |
| includes: L.Mixin.Events, |
| |
| run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number]) |
| this.stop(); |
| |
| this._el = el; |
| this._inProgress = true; |
| this._newPos = newPos; |
| |
| this.fire('start'); |
| |
| el.style[L.DomUtil.TRANSITION] = 'all ' + (duration || 0.25) + |
| 's cubic-bezier(0,0,' + (easeLinearity || 0.5) + ',1)'; |
| |
| L.DomEvent.on(el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this); |
| L.DomUtil.setPosition(el, newPos); |
| |
| // toggle reflow, Chrome flickers for some reason if you don't do this |
| L.Util.falseFn(el.offsetWidth); |
| |
| // there's no native way to track value updates of transitioned properties, so we imitate this |
| this._stepTimer = setInterval(L.bind(this._onStep, this), 50); |
| }, |
| |
| stop: function () { |
| if (!this._inProgress) { return; } |
| |
| // if we just removed the transition property, the element would jump to its final position, |
| // so we need to make it stay at the current position |
| |
| L.DomUtil.setPosition(this._el, this._getPos()); |
| this._onTransitionEnd(); |
| L.Util.falseFn(this._el.offsetWidth); // force reflow in case we are about to start a new animation |
| }, |
| |
| _onStep: function () { |
| var stepPos = this._getPos(); |
| if (!stepPos) { |
| this._onTransitionEnd(); |
| return; |
| } |
| // jshint camelcase: false |
| // make L.DomUtil.getPosition return intermediate position value during animation |
| this._el._leaflet_pos = stepPos; |
| |
| this.fire('step'); |
| }, |
| |
| // you can't easily get intermediate values of properties animated with CSS3 Transitions, |
| // we need to parse computed style (in case of transform it returns matrix string) |
| |
| _transformRe: /([-+]?(?:\d*\.)?\d+)\D*, ([-+]?(?:\d*\.)?\d+)\D*\)/, |
| |
| _getPos: function () { |
| var left, top, matches, |
| el = this._el, |
| style = window.getComputedStyle(el); |
| |
| if (L.Browser.any3d) { |
| matches = style[L.DomUtil.TRANSFORM].match(this._transformRe); |
| if (!matches) { return; } |
| left = parseFloat(matches[1]); |
| top = parseFloat(matches[2]); |
| } else { |
| left = parseFloat(style.left); |
| top = parseFloat(style.top); |
| } |
| |
| return new L.Point(left, top, true); |
| }, |
| |
| _onTransitionEnd: function () { |
| L.DomEvent.off(this._el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this); |
| |
| if (!this._inProgress) { return; } |
| this._inProgress = false; |
| |
| this._el.style[L.DomUtil.TRANSITION] = ''; |
| |
| // jshint camelcase: false |
| // make sure L.DomUtil.getPosition returns the final position value after animation |
| this._el._leaflet_pos = this._newPos; |
| |
| clearInterval(this._stepTimer); |
| |
| this.fire('step').fire('end'); |
| } |
| |
| }); |
| |
| |
| /* |
| * Extends L.Map to handle panning animations. |
| */ |
| |
| L.Map.include({ |
| |
| setView: function (center, zoom, options) { |
| |
| zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom); |
| center = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds); |
| options = options || {}; |
| |
| if (this._panAnim) { |
| this._panAnim.stop(); |
| } |
| |
| if (this._loaded && !options.reset && options !== true) { |
| |
| if (options.animate !== undefined) { |
| options.zoom = L.extend({animate: options.animate}, options.zoom); |
| options.pan = L.extend({animate: options.animate}, options.pan); |
| } |
| |
| // try animating pan or zoom |
| var animated = (this._zoom !== zoom) ? |
| this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) : |
| this._tryAnimatedPan(center, options.pan); |
| |
| if (animated) { |
| // prevent resize handler call, the view will refresh after animation anyway |
| clearTimeout(this._sizeTimer); |
| return this; |
| } |
| } |
| |
| // animation didn't start, just reset the map view |
| this._resetView(center, zoom); |
| |
| return this; |
| }, |
| |
| panBy: function (offset, options) { |
| offset = L.point(offset).round(); |
| options = options || {}; |
| |
| if (!offset.x && !offset.y) { |
| return this; |
| } |
| |
| if (!this._panAnim) { |
| this._panAnim = new L.PosAnimation(); |
| |
| this._panAnim.on({ |
| 'step': this._onPanTransitionStep, |
| 'end': this._onPanTransitionEnd |
| }, this); |
| } |
| |
| // don't fire movestart if animating inertia |
| if (!options.noMoveStart) { |
| this.fire('movestart'); |
| } |
| |
| // animate pan unless animate: false specified |
| if (options.animate !== false) { |
| L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim'); |
| |
| var newPos = this._getMapPanePos().subtract(offset); |
| this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity); |
| } else { |
| this._rawPanBy(offset); |
| this.fire('move').fire('moveend'); |
| } |
| |
| return this; |
| }, |
| |
| _onPanTransitionStep: function () { |
| this.fire('move'); |
| }, |
| |
| _onPanTransitionEnd: function () { |
| L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim'); |
| this.fire('moveend'); |
| }, |
| |
| _tryAnimatedPan: function (center, options) { |
| // difference between the new and current centers in pixels |
| var offset = this._getCenterOffset(center)._floor(); |
| |
| // don't animate too far unless animate: true specified in options |
| if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; } |
| |
| this.panBy(offset, options); |
| |
| return true; |
| } |
| }); |
| |
| |
| /* |
| * L.PosAnimation fallback implementation that powers Leaflet pan animations |
| * in browsers that don't support CSS3 Transitions. |
| */ |
| |
| L.PosAnimation = L.DomUtil.TRANSITION ? L.PosAnimation : L.PosAnimation.extend({ |
| |
| run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number]) |
| this.stop(); |
| |
| this._el = el; |
| this._inProgress = true; |
| this._duration = duration || 0.25; |
| this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2); |
| |
| this._startPos = L.DomUtil.getPosition(el); |
| this._offset = newPos.subtract(this._startPos); |
| this._startTime = +new Date(); |
| |
| this.fire('start'); |
| |
| this._animate(); |
| }, |
| |
| stop: function () { |
| if (!this._inProgress) { return; } |
| |
| this._step(); |
| this._complete(); |
| }, |
| |
| _animate: function () { |
| // animation loop |
| this._animId = L.Util.requestAnimFrame(this._animate, this); |
| this._step(); |
| }, |
| |
| _step: function () { |
| var elapsed = (+new Date()) - this._startTime, |
| duration = this._duration * 1000; |
| |
| if (elapsed < duration) { |
| this._runFrame(this._easeOut(elapsed / duration)); |
| } else { |
| this._runFrame(1); |
| this._complete(); |
| } |
| }, |
| |
| _runFrame: function (progress) { |
| var pos = this._startPos.add(this._offset.multiplyBy(progress)); |
| L.DomUtil.setPosition(this._el, pos); |
| |
| this.fire('step'); |
| }, |
| |
| _complete: function () { |
| L.Util.cancelAnimFrame(this._animId); |
| |
| this._inProgress = false; |
| this.fire('end'); |
| }, |
| |
| _easeOut: function (t) { |
| return 1 - Math.pow(1 - t, this._easeOutPower); |
| } |
| }); |
| |
| |
| /* |
| * Extends L.Map to handle zoom animations. |
| */ |
| |
| L.Map.mergeOptions({ |
| zoomAnimation: true, |
| zoomAnimationThreshold: 4 |
| }); |
| |
| if (L.DomUtil.TRANSITION) { |
| |
| L.Map.addInitHook(function () { |
| // don't animate on browsers without hardware-accelerated transitions or old Android/Opera |
| this._zoomAnimated = this.options.zoomAnimation && L.DomUtil.TRANSITION && |
| L.Browser.any3d && !L.Browser.android23 && !L.Browser.mobileOpera; |
| |
| // zoom transitions run with the same duration for all layers, so if one of transitionend events |
| // happens after starting zoom animation (propagating to the map pane), we know that it ended globally |
| if (this._zoomAnimated) { |
| L.DomEvent.on(this._mapPane, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this); |
| } |
| }); |
| } |
| |
| L.Map.include(!L.DomUtil.TRANSITION ? {} : { |
| |
| _catchTransitionEnd: function (e) { |
| if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) { |
| this._onZoomTransitionEnd(); |
| } |
| }, |
| |
| _nothingToAnimate: function () { |
| return !this._container.getElementsByClassName('leaflet-zoom-animated').length; |
| }, |
| |
| _tryAnimatedZoom: function (center, zoom, options) { |
| |
| if (this._animatingZoom) { return true; } |
| |
| options = options || {}; |
| |
| // don't animate if disabled, not supported or zoom difference is too large |
| if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() || |
| Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; } |
| |
| // offset is the pixel coords of the zoom origin relative to the current center |
| var scale = this.getZoomScale(zoom), |
| offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale), |
| origin = this._getCenterLayerPoint()._add(offset); |
| |
| // don't animate if the zoom origin isn't within one screen from the current center, unless forced |
| if (options.animate !== true && !this.getSize().contains(offset)) { return false; } |
| |
| this |
| .fire('movestart') |
| .fire('zoomstart'); |
| |
| this._animateZoom(center, zoom, origin, scale, null, true); |
| |
| return true; |
| }, |
| |
| _animateZoom: function (center, zoom, origin, scale, delta, backwards, forTouchZoom) { |
| |
| if (!forTouchZoom) { |
| this._animatingZoom = true; |
| } |
| |
| // put transform transition on all layers with leaflet-zoom-animated class |
| L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim'); |
| |
| // remember what center/zoom to set after animation |
| this._animateToCenter = center; |
| this._animateToZoom = zoom; |
| |
| // disable any dragging during animation |
| if (L.Draggable) { |
| L.Draggable._disabled = true; |
| } |
| |
| L.Util.requestAnimFrame(function () { |
| this.fire('zoomanim', { |
| center: center, |
| zoom: zoom, |
| origin: origin, |
| scale: scale, |
| delta: delta, |
| backwards: backwards |
| }); |
| // horrible hack to work around a Chrome bug https://github.com/Leaflet/Leaflet/issues/3689 |
| setTimeout(L.bind(this._onZoomTransitionEnd, this), 250); |
| }, this); |
| }, |
| |
| _onZoomTransitionEnd: function () { |
| if (!this._animatingZoom) { return; } |
| |
| this._animatingZoom = false; |
| |
| L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim'); |
| |
| L.Util.requestAnimFrame(function () { |
| this._resetView(this._animateToCenter, this._animateToZoom, true, true); |
| |
| if (L.Draggable) { |
| L.Draggable._disabled = false; |
| } |
| }, this); |
| } |
| }); |
| |
| |
| /* |
| Zoom animation logic for L.TileLayer. |
| */ |
| |
| L.TileLayer.include({ |
| _animateZoom: function (e) { |
| if (!this._animating) { |
| this._animating = true; |
| this._prepareBgBuffer(); |
| } |
| |
| var bg = this._bgBuffer, |
| transform = L.DomUtil.TRANSFORM, |
| initialTransform = e.delta ? L.DomUtil.getTranslateString(e.delta) : bg.style[transform], |
| scaleStr = L.DomUtil.getScaleString(e.scale, e.origin); |
| |
| bg.style[transform] = e.backwards ? |
| scaleStr + ' ' + initialTransform : |
| initialTransform + ' ' + scaleStr; |
| }, |
| |
| _endZoomAnim: function () { |
| var front = this._tileContainer, |
| bg = this._bgBuffer; |
| |
| front.style.visibility = ''; |
| front.parentNode.appendChild(front); // Bring to fore |
| |
| // force reflow |
| L.Util.falseFn(bg.offsetWidth); |
| |
| var zoom = this._map.getZoom(); |
| if (zoom > this.options.maxZoom || zoom < this.options.minZoom) { |
| this._clearBgBuffer(); |
| } |
| |
| this._animating = false; |
| }, |
| |
| _clearBgBuffer: function () { |
| var map = this._map; |
| |
| if (map && !map._animatingZoom && !map.touchZoom._zooming) { |
| this._bgBuffer.innerHTML = ''; |
| this._bgBuffer.style[L.DomUtil.TRANSFORM] = ''; |
| } |
| }, |
| |
| _prepareBgBuffer: function () { |
| |
| var front = this._tileContainer, |
| bg = this._bgBuffer; |
| |
| // if foreground layer doesn't have many tiles but bg layer does, |
| // keep the existing bg layer and just zoom it some more |
| |
| var bgLoaded = this._getLoadedTilesPercentage(bg), |
| frontLoaded = this._getLoadedTilesPercentage(front); |
| |
| if (bg && bgLoaded > 0.5 && frontLoaded < 0.5) { |
| |
| front.style.visibility = 'hidden'; |
| this._stopLoadingImages(front); |
| return; |
| } |
| |
| // prepare the buffer to become the front tile pane |
| bg.style.visibility = 'hidden'; |
| bg.style[L.DomUtil.TRANSFORM] = ''; |
| |
| // switch out the current layer to be the new bg layer (and vice-versa) |
| this._tileContainer = bg; |
| bg = this._bgBuffer = front; |
| |
| this._stopLoadingImages(bg); |
| |
| //prevent bg buffer from clearing right after zoom |
| clearTimeout(this._clearBgBufferTimer); |
| }, |
| |
| _getLoadedTilesPercentage: function (container) { |
| var tiles = container.getElementsByTagName('img'), |
| i, len, count = 0; |
| |
| for (i = 0, len = tiles.length; i < len; i++) { |
| if (tiles[i].complete) { |
| count++; |
| } |
| } |
| return count / len; |
| }, |
| |
| // stops loading all tiles in the background layer |
| _stopLoadingImages: function (container) { |
| var tiles = Array.prototype.slice.call(container.getElementsByTagName('img')), |
| i, len, tile; |
| |
| for (i = 0, len = tiles.length; i < len; i++) { |
| tile = tiles[i]; |
| |
| if (!tile.complete) { |
| tile.onload = L.Util.falseFn; |
| tile.onerror = L.Util.falseFn; |
| tile.src = L.Util.emptyImageUrl; |
| |
| tile.parentNode.removeChild(tile); |
| } |
| } |
| } |
| }); |
| |
| |
| /* |
| * Provides L.Map with convenient shortcuts for using browser geolocation features. |
| */ |
| |
| L.Map.include({ |
| _defaultLocateOptions: { |
| watch: false, |
| setView: false, |
| maxZoom: Infinity, |
| timeout: 10000, |
| maximumAge: 0, |
| enableHighAccuracy: false |
| }, |
| |
| locate: function (/*Object*/ options) { |
| |
| options = this._locateOptions = L.extend(this._defaultLocateOptions, options); |
| |
| if (!navigator.geolocation) { |
| this._handleGeolocationError({ |
| code: 0, |
| message: 'Geolocation not supported.' |
| }); |
| return this; |
| } |
| |
| var onResponse = L.bind(this._handleGeolocationResponse, this), |
| onError = L.bind(this._handleGeolocationError, this); |
| |
| if (options.watch) { |
| this._locationWatchId = |
| navigator.geolocation.watchPosition(onResponse, onError, options); |
| } else { |
| navigator.geolocation.getCurrentPosition(onResponse, onError, options); |
| } |
| return this; |
| }, |
| |
| stopLocate: function () { |
| if (navigator.geolocation) { |
| navigator.geolocation.clearWatch(this._locationWatchId); |
| } |
| if (this._locateOptions) { |
| this._locateOptions.setView = false; |
| } |
| return this; |
| }, |
| |
| _handleGeolocationError: function (error) { |
| var c = error.code, |
| message = error.message || |
| (c === 1 ? 'permission denied' : |
| (c === 2 ? 'position unavailable' : 'timeout')); |
| |
| if (this._locateOptions.setView && !this._loaded) { |
| this.fitWorld(); |
| } |
| |
| this.fire('locationerror', { |
| code: c, |
| message: 'Geolocation error: ' + message + '.' |
| }); |
| }, |
| |
| _handleGeolocationResponse: function (pos) { |
| var lat = pos.coords.latitude, |
| lng = pos.coords.longitude, |
| latlng = new L.LatLng(lat, lng), |
| |
| latAccuracy = 180 * pos.coords.accuracy / 40075017, |
| lngAccuracy = latAccuracy / Math.cos(L.LatLng.DEG_TO_RAD * lat), |
| |
| bounds = L.latLngBounds( |
| [lat - latAccuracy, lng - lngAccuracy], |
| [lat + latAccuracy, lng + lngAccuracy]), |
| |
| options = this._locateOptions; |
| |
| if (options.setView) { |
| var zoom = Math.min(this.getBoundsZoom(bounds), options.maxZoom); |
| this.setView(latlng, zoom); |
| } |
| |
| var data = { |
| latlng: latlng, |
| bounds: bounds, |
| timestamp: pos.timestamp |
| }; |
| |
| for (var i in pos.coords) { |
| if (typeof pos.coords[i] === 'number') { |
| data[i] = pos.coords[i]; |
| } |
| } |
| |
| this.fire('locationfound', data); |
| } |
| }); |
| |
| |
| }(window, document)); |