X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/1ae4483c6939a93f96eb6cdb02ac38c0f36479ae..3e405040eaa0f0e086ea22ff3934a2adfcb851b6:/vendor/assets/leaflet/leaflet.js diff --git a/vendor/assets/leaflet/leaflet.js b/vendor/assets/leaflet/leaflet.js index 6efe5be5c..0f0b01be2 100644 --- a/vendor/assets/leaflet/leaflet.js +++ b/vendor/assets/leaflet/leaflet.js @@ -1,5622 +1,6579 @@ /* - Copyright (c) 2010-2012, CloudMade, Vladimir Agafonkin - Leaflet is an open-source JavaScript library for mobile-friendly interactive maps. - http://leaflet.cloudmade.com + Leaflet, a JavaScript library for mobile-friendly interactive maps. http://leafletjs.com + (c) 2010-2013, Vladimir Agafonkin + (c) 2010-2011, CloudMade */ -(function (window, undefined) { - -var L, originalL; - -if (typeof exports !== undefined + '') { - L = exports; -} else { - originalL = window.L; - L = {}; - - L.noConflict = function () { - window.L = originalL; - return this; - }; - - window.L = L; -} - -L.version = '0.4.4'; - - -/* - * L.Util is a namespace for various utility functions. - */ - -L.Util = { - extend: function (/*Object*/ dest) /*-> Object*/ { // merge src properties into dest - var sources = Array.prototype.slice.call(arguments, 1); - for (var j = 0, len = sources.length, src; j < len; j++) { - src = sources[j] || {}; - for (var 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 (/*Object*/ obj) { - obj[key] = obj[key] || ++lastId; - return obj[key]; - }; - }()), - - 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; - }, - - splitWords: function (str) { - return str.replace(/^\s+|\s+$/g, '').split(/\s+/); - }, - - setOptions: function (obj, options) { - obj.options = L.Util.extend({}, obj.options, options); - return obj.options; - }, - - getParamString: function (obj) { - var params = []; - for (var i in obj) { - if (obj.hasOwnProperty(i)) { - params.push(i + '=' + obj[i]); - } - } - return '?' + params.join('&'); - }, - - template: function (str, data) { - return str.replace(/\{ *([\w_]+) *\}/g, function (str, key) { - var value = data[key]; - if (!data.hasOwnProperty(key)) { - throw new Error('No value provided for variable ' + str); - } - return value; - }); - }, - - 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.Util.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); - } - }; - -}()); - - -/* - * Class powers the OOP facilities of the library. Thanks to John Resig and Dean Edwards for inspiration! - */ - -L.Class = function () {}; - -L.Class.extend = function (/*Object*/ props) /*-> Class*/ { - - // extended class with the new prototype - var NewClass = function () { - if (this.initialize) { - this.initialize.apply(this, arguments); - } - }; - - // 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.Util.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.Util.extend({}, proto.options, props.options); - } - - // mix given properties into the prototype - L.Util.extend(proto, props); - - return NewClass; -}; - - -// method for adding properties to prototype -L.Class.include = function (props) { - L.Util.extend(this.prototype, props); -}; - -L.Class.mergeOptions = function (options) { - L.Util.extend(this.prototype.options, options); +(function (window, document, undefined) { +var oldL = window.L, + L = {}; + +L.version = '0.6.3'; + +// 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: 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 && 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 (context) { + // 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 && 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]; + + } else { + listeners = context && 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 || this, 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 || this, 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 = !!window.ActiveXObject, + ie6 = ie && !window.XMLHttpRequest, + ie7 = ie && !document.querySelector, + 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, + + mobile = typeof orientation !== undefined + '', + msTouch = window.navigator && window.navigator.msPointerEnabled && + window.navigator.msMaxTouchPoints, + 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()), + gecko3d = 'MozPerspective' in doc.style, + opera3d = 'OTransition' in doc.style, + any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d) && !phantomjs; + + + // PhantomJS has 'ontouchstart' in document.documentElement, but doesn't actually support touch. + // https://github.com/Leaflet/Leaflet/pull/1434#issuecomment-13843151 + + var touch = !window.L_NO_TOUCH && !phantomjs && (function () { + + var startName = 'ontouchstart'; + + // IE10+ (We simulate these into touch* events in L.DomEvent and L.DomEvent.MsTouch) or WebKit, etc. + if (msTouch || (startName in doc)) { + return true; + } + + // Firefox/Gecko + var div = document.createElement('div'), + supported = false; + + if (!div.setAttribute) { + return false; + } + div.setAttribute(startName, 'return;'); + + if (typeof div[startName] === 'function') { + supported = true; + } + + div.removeAttribute(startName); + div = null; + + return supported; + }()); + + + L.Browser = { + ie: ie, + ie6: ie6, + ie7: ie7, + ielt9: ielt9, + webkit: webkit, + + 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, + msTouch: msTouch, + + 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, + ie7 = L.Browser.ie7; + + 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; + + // webkit (and ie <= 7) handles RTL scrollLeft different to everyone else + // https://code.google.com/p/closure-library/source/browse/trunk/closure/goog/style/bidi.js + if (!L.DomUtil.documentIsLtr() && (L.Browser.webkit || ie7)) { + left += el.scrollWidth - el.clientWidth; + + // ie7 shows the scrollbar by default and provides clientWidth counting it, so we + // need to add it back in if it is visible; scrollbar is on the left as we are RTL + if (ie7 && L.DomUtil.getStyle(el, 'overflow-y') !== 'hidden' && + L.DomUtil.getStyle(el, 'overflow') !== 'hidden') { + left += 17; + } + } + + 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) { + return (el.className.length > 0) && + new RegExp('(^|\\s)' + name + '(\\s|$)').test(el.className); + }, + + addClass: function (el, name) { + if (!L.DomUtil.hasClass(el, name)) { + el.className += (el.className ? ' ' : '') + name; + } + }, + + removeClass: function (el, name) { + el.className = L.Util.trim((' ' + el.className + ' ').replace(' ' + name + ' ', ' ')); + }, + + 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); + + // workaround for Android 2/3 stability (https://github.com/CloudMade/Leaflet/issues/69) + if (L.Browser.mobileWebkit3d) { + el.style.WebkitBackfaceVisibility = 'hidden'; + } + } 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 () { + var userSelectProperty = L.DomUtil.testProp( + ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']); + + L.extend(L.DomUtil, { + disableTextSelection: function () { + L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault); + if (userSelectProperty) { + var style = document.documentElement.style; + this._userSelect = style[userSelectProperty]; + style[userSelectProperty] = 'none'; + } + }, + + enableTextSelection: function () { + L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault); + if (userSelectProperty) { + document.documentElement.style[userSelectProperty] = this._userSelect; + delete this._userSelect; + } + }, + + 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 (rawLat, rawLng) { // (Number, Number) + var lat = parseFloat(rawLat), + lng = parseFloat(rawLng); + + if (isNaN(lat) || isNaN(lng)) { + throw new Error('Invalid LatLng object: (' + rawLat + ', ' + rawLng + ')'); + } + + this.lat = lat; + this.lng = lng; +}; + +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)) { + return new L.LatLng(a[0], a[1]); + } + 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); + } + 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; } + + if (typeof obj[0] === 'number' || typeof obj[0] === 'string' || obj instanceof L.LatLng) { + obj = L.latLng(obj); + } 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); + } +}; + + +/* + * 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(); + 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) { + this._resetView(L.latLng(center), this._limitZoom(zoom)); + return this; + }, + + setZoom: function (zoom, options) { + 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)), + 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.Animation.js + this.fire('movestart'); + + this._rawPanBy(L.point(offset)); + + this.fire('move'); + return this.fire('moveend'); + }, + + setMaxBounds: function (bounds, options) { + bounds = L.latLngBounds(bounds); + + this.options.maxBounds = bounds; + + if (!bounds) { + this._boundsMinZoom = null; + this.off('moveend', this._panInsideMaxBounds, this); + return this; + } + + var minZoom = this.getBoundsZoom(bounds, true); + + this._boundsMinZoom = minZoom; + + if (this._loaded) { + if (this._zoom < minZoom) { + this.setView(bounds.getCenter(), minZoom, options); + } else { + this.panInsideBounds(bounds); + } + } + + this.on('moveend', this._panInsideMaxBounds, this); + + return this; + }, + + panInsideBounds: function (bounds) { + bounds = L.latLngBounds(bounds); + + var viewBounds = this.getPixelBounds(), + viewSw = viewBounds.getBottomLeft(), + viewNe = viewBounds.getTopRight(), + sw = this.project(bounds.getSouthWest()), + ne = this.project(bounds.getNorthEast()), + dx = 0, + dy = 0; + + if (viewNe.y < ne.y) { // north + dy = Math.ceil(ne.y - viewNe.y); + } + if (viewNe.x > ne.x) { // east + dx = Math.floor(ne.x - viewNe.x); + } + if (viewSw.y > sw.y) { // south + dy = Math.floor(sw.y - viewSw.y); + } + if (viewSw.x < sw.x) { // west + dx = Math.ceil(sw.x - viewSw.x); + } + + if (dx || dy) { + return this.panBy([dx, dy]); + } + + return this; + }, + + 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) { + options = L.extend({ + animate: false, + pan: true + }, options === true ? {animate: true} : options); + + var oldSize = this.getSize(); + this._sizeChanged = true; + this._initialCenter = null; + + if (this.options.maxBounds) { + this.setMaxBounds(this.options.maxBounds); + } + + if (!this._loaded) { return this; } + + var newSize = this.getSize(), + offset = oldSize.subtract(newSize).divideBy(2).round(); + + 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').fire('moveend'); + } + + return this.fire('resize', { + oldSize: oldSize, + newSize: newSize + }); + }, + + // TODO handler.addTo + addHandler: function (name, HandlerClass) { + if (!HandlerClass) { return; } + + 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'); + + delete this._container._leaflet; + + 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 () { + var z1 = this._layersMinZoom === undefined ? -Infinity : this._layersMinZoom, + z2 = this._boundsMinZoom === undefined ? -Infinity : this._boundsMinZoom; + return this.options.minZoom === undefined ? Math.max(z1, z2) : 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' : '') + + (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; + + if (loading) { + this.fire('load'); + this.eachLayer(this._layerAdd, this); + } + + this.fire('viewreset', {hard: !preserveMapOffset}); + + 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( + this.invalidateSize, this, false, this._container); + }, + + _onMouseClick: function (e) { + if (!this._loaded || (!e._simulated && this.dragging && this.dragging.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()); + }, + + _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, + r2 = m.R_MINOR; + + return new L.Transformation(0.5 / (Math.PI * r), 0.5, -0.5 / (Math.PI * r2), 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, + /* (undefined works too) + 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(); + + // create an image to clone for tiles + this._createTileProto(); + + // 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 leaflet-zoom-animated'; + + 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(); + }, + + _update: function () { + + if (!this._map) { return; } + + var bounds = this._map.getPixelBounds(), + zoom = this._map.getZoom(), + tileSize = this.options.tileSize; + + 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)) || + tilePoint.y < 0 || tilePoint.y >= limit) { return false; } + } + + if (options.bounds) { + var tileSize = options.tileSize, + 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 + Android 2 browser requires top/left or tiles disappear on load or first drag + (reappear after zoom) https://github.com/CloudMade/Leaflet/issues/866 + (other browsers don't currently care) - see debug/hacks/jitter.html for an example + */ + L.DomUtil.setPosition(tile, tilePos, L.Browser.chrome || L.Browser.android23); + + 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; + } + + return zoom + options.zoomOffset; + }, + + _getTilePos: function (tilePoint) { + var origin = this._map.getPixelOrigin(), + tileSize = this.options.tileSize; + + 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 () { + // TODO refactor, limit is not valid for non-standard projections + return Math.pow(2, this._getZoomForUrl()); + }, + + _adjustTilePoint: function (tilePoint) { + + var limit = this._getWrapTileNum(); + + // wrap tile coordinates + if (!this.options.continuousWorld && !this.options.noWrap) { + tilePoint.x = ((tilePoint.x % limit) + limit) % limit; + } + + if (this.options.tms) { + tilePoint.y = limit - 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]; + }, + + _createTileProto: function () { + var img = this._tileImg = L.DomUtil.create('img', 'leaflet-tile'); + img.style.width = img.style.height = this.options.tileSize + 'px'; + img.galleryimg = 'no'; + }, + + _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 = this._tileImg.cloneNode(false); + tile.onselectstart = tile.onmousemove = L.Util.falseFn; + + if (L.Browser.ielt9 && this.options.opacity !== undefined) { + L.DomUtil.setOpacity(tile, this.options.opacity); + } + 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); + }, + + _tileLoaded: function () { + this._tilesToLoad--; + 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; + + var projectionKey = parseFloat(this.wmsParams.version) >= 1.3 ? 'crs' : 'srs'; + this.wmsParams[projectionKey] = this._crs.code; + + L.TileLayer.prototype.onAdd.call(this, map); + }, + + getTileUrl: function (tilePoint, zoom) { // (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, zoom)), + se = this._crs.project(map.unproject(sePoint, zoom)), + + bbox = [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); + }, + + _createTileProto: function () { + var proto = this._canvasProto = L.DomUtil.create('canvas', 'leaflet-tile'); + proto.width = proto.height = this.options.tileSize; + }, + + _createTile: function () { + var tile = this._canvasProto.cloneNode(false); + 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; + }, + + _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) { + + if (!L.Browser.ie6) { + if (!el) { + el = document.createElement('img'); + } + el.src = src; + } else { + if (!el) { + el = document.createElement('div'); + } + el.style.filter = + 'progid:DXImageTransform.Microsoft.AlphaImageLoader(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: '', + 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(); + + 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(); + } + + return this; + }, + + update: function () { + if (this._icon) { + var pos = this._map.latLngToLayerPoint(this._latlng).round(); + this._setPos(pos); + } + + 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; + } + } + + 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); + + 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], + 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(); + } + this._updateContent(); + + 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}); + } + }, + + setLatLng: function (latlng) { + this._latlng = L.latLng(latlng); + this._update(); + return this; + }, + + setContent: function (content) { + this._content = content; + this._update(); + return this; + }, + + _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.on(this._contentNode, 'mousewheel', L.DomEvent.stopPropagation); + L.DomEvent.on(this._contentNode, 'MozMousePixelScroll', L.DomEvent.stopPropagation); + 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); + }, + + _update: function () { + if (!this._map) { return; } + + this._container.style.visibility = 'hidden'; + + this._updateContent(); + this._updateLayout(); + this._updatePosition(); + + this._container.style.visibility = ''; + + this._adjustPan(); + }, + + _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), + size = map.getSize(), + dx = 0, + dy = 0; + + if (containerPos.x + containerWidth > size.x) { // right + dx = containerPos.x + containerWidth - size.x + padding.x; + } + if (containerPos.x - dx < 0) { // left + dx = containerPos.x - padding.x; + } + if (containerPos.y + containerHeight > size.y) { // bottom + dy = containerPos.y + containerHeight - size.y + padding.y; + } + if (containerPos.y - dy < 0) { // top + dy = containerPos.y - padding.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._popup) { + this + .on('click', this.togglePopup, this) + .on('remove', this.closePopup, this) + .on('move', this._movePopup, this); + } + + if (content instanceof L.Popup) { + L.setOptions(content, options); + this._popup = content; + } 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) + .off('remove', this.closePopup) + .off('move', this._movePopup); + } + return this; + }, + + _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; + } + + 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]; + } + + 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); + }, + + 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) { + if (!e.layer) { + e.layer = e.target; + } + e.target = this; + + 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, + 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'); + 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'); + } + } 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) { + this._path.setAttribute('class', '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.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) { + this._pathRoot.setAttribute('class', ' leaflet-zoom-animated'); + + this.on({ + 'zoomanim': this._animatePathZoom, + 'zoomend': this._endPathZoom + }); + } else { + this._pathRoot.setAttribute('class', ' 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 = ''; + + 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(''); + }; + } 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'); + 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 = options.dashArray instanceof Array ? + options.dashArray.join(' ') : + options.dashArray.replace(/( *, *)/g, ' '); + } else { + stroke.dashStyle = ''; + } + + } 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._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; + } + }, + + _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(); + } + + 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) { + // TODO dblclick + this._map.on('mousemove', this._onMouseMove, this); + this._map.on('click', this._onClick, this); + } + }, + + _onClick: function (e) { + if (this._containsPoint(e.layerPoint)) { + this.fire('click', 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 oprations 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) { + var i, len, hole; + + L.Polyline.prototype.initialize.call(this, latlngs, options); + + 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]); + } + } + }, + + _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); + }, + + setRadius: function (radius) { + this.options.radius = this._radius = radius; + return this.redraw(); + } +}); + +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); + 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) { + var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson, + coords = geometry.coordinates, + layers = [], + latlng, latlngs, i, len, layer; + + 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]); + layer = pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng); + layers.push(layer); + } + return new L.FeatureGroup(layers); + + case 'LineString': + latlngs = this.coordsToLatLngs(coords, 0, coordsToLatLng); + return new L.Polyline(latlngs); + + case 'Polygon': + latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng); + return new L.Polygon(latlngs); + + case 'MultiLineString': + latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng); + return new L.MultiPolyline(latlngs); + + case 'MultiPolygon': + latlngs = this.coordsToLatLngs(coords, 2, coordsToLatLng); + return new L.MultiPolygon(latlngs); + + case 'GeometryCollection': + for (i = 0, len = geometry.geometries.length; i < len; i++) { + + layer = this.geometryToLayer({ + geometry: geometry.geometries[i], + type: 'Feature', + properties: geojson.properties + }, pointToLayer, coordsToLatLng); + + layers.push(layer); + } + 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]); + }, + + 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) { + return [latLng.lng, latLng.lat]; + }, + + 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 includeMulti(Klass, type) { + Klass.include({ + toGeoJSON: function () { + var coords = []; + + this.eachLayer(function (layer) { + coords.push(layer.toGeoJSON().geometry.coordinates); + }); + + return L.GeoJSON.getFeature(this, { + type: type, + coordinates: coords + }); + } + }); + } + + includeMulti(L.MultiPolyline, 'MultiLineString'); + includeMulti(L.MultiPolygon, 'MultiPolygon'); +}()); + +L.LayerGroup.include({ + toGeoJSON: function () { + var features = []; + + this.eachLayer(function (layer) { + if (layer.toGeoJSON) { + features.push(L.GeoJSON.asFeature(layer.toGeoJSON())); + } + }); + + return { + type: 'FeatureCollection', + features: features + }; + } +}); + +L.geoJson = function (geojson, options) { + return new L.GeoJSON(geojson, options); }; -/* - * L.Mixin.Events adds custom events functionality to Leaflet classes - */ - -var key = '_leaflet_events'; - -L.Mixin = {}; - -L.Mixin.Events = { - - addEventListener: function (types, fn, context) { // (String, Function[, Object]) or (Object[, Object]) - var events = this[key] = this[key] || {}, - type, i, len; - - // Types can be a map of types/handlers - if (typeof types === 'object') { - for (type in types) { - if (types.hasOwnProperty(type)) { - this.addEventListener(type, types[type], fn); - } - } - - return this; - } - - types = L.Util.splitWords(types); - - for (i = 0, len = types.length; i < len; i++) { - events[types[i]] = events[types[i]] || []; - events[types[i]].push({ - action: fn, - context: context || this - }); - } - - return this; - }, - - hasEventListeners: function (type) { // (String) -> Boolean - return (key in this) && (type in this[key]) && (this[key][type].length > 0); - }, - - removeEventListener: function (types, fn, context) { // (String[, Function, Object]) or (Object[, Object]) - var events = this[key], - type, i, len, listeners, j; - - if (typeof types === 'object') { - for (type in types) { - if (types.hasOwnProperty(type)) { - this.removeEventListener(type, types[type], fn); - } - } - - return this; - } - - types = L.Util.splitWords(types); - - for (i = 0, len = types.length; i < len; i++) { - - if (this.hasEventListeners(types[i])) { - listeners = events[types[i]]; - - for (j = listeners.length - 1; j >= 0; j--) { - if ( - (!fn || listeners[j].action === fn) && - (!context || (listeners[j].context === context)) - ) { - listeners.splice(j, 1); - } - } - } - } - - return this; - }, - - fireEvent: function (type, data) { // (String[, Object]) - if (!this.hasEventListeners(type)) { - return this; - } - - var event = L.Util.extend({ - type: type, - target: this - }, data); - - var listeners = this[key][type].slice(); - - for (var i = 0, len = listeners.length; i < len; i++) { - listeners[i].action.call(listeners[i].context || this, event); - } - - return this; - } -}; - -L.Mixin.Events.on = L.Mixin.Events.addEventListener; -L.Mixin.Events.off = L.Mixin.Events.removeEventListener; -L.Mixin.Events.fire = L.Mixin.Events.fireEvent; - - -(function () { - var ua = navigator.userAgent.toLowerCase(), - ie = !!window.ActiveXObject, - ie6 = ie && !window.XMLHttpRequest, - webkit = ua.indexOf("webkit") !== -1, - gecko = ua.indexOf("gecko") !== -1, - //Terrible browser detection to work around a safari / iOS / android browser bug. See TileLayer._addTile and debug/hacks/jitter.html - chrome = ua.indexOf("chrome") !== -1, - opera = window.opera, - android = ua.indexOf("android") !== -1, - android23 = ua.search("android [23]") !== -1, - mobile = typeof orientation !== undefined + '' ? true : false, - doc = document.documentElement, - ie3d = ie && ('transition' in doc.style), - webkit3d = webkit && ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()), - gecko3d = gecko && ('MozPerspective' in doc.style), - opera3d = opera && ('OTransition' in doc.style); - - var touch = !window.L_NO_TOUCH && (function () { - var startName = 'ontouchstart'; - - // WebKit, etc - if (startName in doc) { - return true; - } - - // Firefox/Gecko - var div = document.createElement('div'), - supported = false; - - if (!div.setAttribute) { - return false; - } - div.setAttribute(startName, 'return;'); - - if (typeof div[startName] === 'function') { - supported = true; - } - - div.removeAttribute(startName); - div = null; - - return supported; - }()); - - var retina = (('devicePixelRatio' in window && window.devicePixelRatio > 1) || ('matchMedia' in window && window.matchMedia("(min-resolution:144dpi)").matches)); - - L.Browser = { - ua: ua, - ie: ie, - ie6: ie6, - webkit: webkit, - gecko: gecko, - opera: opera, - android: android, - android23: android23, - - chrome: chrome, - - ie3d: ie3d, - webkit3d: webkit3d, - gecko3d: gecko3d, - opera3d: opera3d, - any3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d), - - mobile: mobile, - mobileWebkit: mobile && webkit, - mobileWebkit3d: mobile && webkit3d, - mobileOpera: mobile && opera, - - touch: touch, - - 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); - }, - - 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 (x instanceof Array) { - return new L.Point(x[0], x[1]); - } - if (isNaN(x)) { - return x; - } - return new L.Point(x, y, round); -}; - - -/* - * L.Bounds represents a rectangular area on the screen in pixel coordinates. - */ - -L.Bounds = L.Class.extend({ - - initialize: 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]); - } - }, - - // 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); - }, - - 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; - - var 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 = L.Class.extend({ - initialize: function (/*Number*/ a, /*Number*/ b, /*Number*/ c, /*Number*/ d) { - this._a = a; - this._b = b; - this._c = c; - this._d = d; - }, - - transform: function (point, scale) { - return this._transform(point.clone(), scale); - }, - - // destructive transform (faster) - _transform: function (/*Point*/ point, /*Number*/ scale) /*-> Point*/ { - 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*/ point, /*Number*/ scale) /*-> Point*/ { - 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') { - 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, - pos; - - do { - top += el.offsetTop || 0; - left += el.offsetLeft || 0; - pos = L.DomUtil.getStyle(el, 'position'); - - if (el.offsetParent === docBody && pos === 'absolute') { break; } - - if (pos === 'fixed') { - top += docBody.scrollTop || 0; - left += docBody.scrollLeft || 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); - }, - - create: function (tagName, className, container) { - - var el = document.createElement(tagName); - el.className = className; - - if (container) { - container.appendChild(el); - } - - return el; - }, - - disableTextSelection: function () { - if (document.selection && document.selection.empty) { - document.selection.empty(); - } - if (!this._onselectstart) { - this._onselectstart = document.onselectstart; - document.onselectstart = L.Util.falseFn; - } - }, - - enableTextSelection: function () { - if (document.onselectstart === L.Util.falseFn) { - document.onselectstart = this._onselectstart; - this._onselectstart = null; - } - }, - - hasClass: function (el, name) { - return (el.className.length > 0) && - new RegExp("(^|\\s)" + name + "(\\s|$)").test(el.className); - }, - - addClass: function (el, name) { - if (!L.DomUtil.hasClass(el, name)) { - el.className += (el.className ? ' ' : '') + name; - } - }, - - removeClass: function (el, name) { - - function replaceFn(w, match) { - if (match === name) { return ''; } - return w; - } - - el.className = el.className - .replace(/(\S+)\s*/g, replaceFn) - .replace(/(^\s+|\s+$)/, ''); - }, - - setOpacity: function (el, value) { - - if ('opacity' in el.style) { - el.style.opacity = value; - - } else if (L.Browser.ie) { - - 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) {} - - 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]) - - el._leaflet_pos = point; - - if (!disable3D && L.Browser.any3d) { - el.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString(point); - - // workaround for Android 2/3 stability (https://github.com/CloudMade/Leaflet/issues/69) - if (L.Browser.mobileWebkit3d) { - el.style.WebkitBackfaceVisibility = 'hidden'; - } - } 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 - return el._leaflet_pos; - } -}; - - -// prefix style property names - -L.DomUtil.TRANSFORM = L.DomUtil.testProp( - ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']); - -L.DomUtil.TRANSITION = L.DomUtil.testProp( - ['transition', 'webkitTransition', 'OTransition', 'MozTransition', 'msTransition']); - -L.DomUtil.TRANSITION_END = - L.DomUtil.TRANSITION === 'webkitTransition' || L.DomUtil.TRANSITION === 'OTransition' ? - L.DomUtil.TRANSITION + 'End' : 'transitionend'; - - -/* - CM.LatLng represents a geographical point with latitude and longtitude coordinates. -*/ - -L.LatLng = function (rawLat, rawLng, noWrap) { // (Number, Number[, Boolean]) - var lat = parseFloat(rawLat), - lng = parseFloat(rawLng); - - if (isNaN(lat) || isNaN(lng)) { - throw new Error('Invalid LatLng object: (' + rawLat + ', ' + rawLng + ')'); - } - - if (noWrap !== true) { - lat = Math.max(Math.min(lat, 90), -90); // clamp latitude into -90..90 - lng = (lng + 180) % 360 + ((lng < -180 || lng === 180) ? 180 : -180); // wrap longtitude into -180..180 - } - - this.lat = lat; - this.lng = lng; -}; - -L.Util.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 () { // -> String - return 'LatLng(' + - L.Util.formatNum(this.lat) + ', ' + - L.Util.formatNum(this.lng) + ')'; - }, - - // Haversine distance formula, see http://en.wikipedia.org/wiki/Haversine_formula - 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)); - } -}; - -L.latLng = function (a, b, c) { // (LatLng) or ([Number, Number]) or (Number, Number, Boolean) - if (a instanceof L.LatLng) { - return a; - } - if (a instanceof Array) { - return new L.LatLng(a[0], a[1]); - } - if (isNaN(a)) { - return a; - } - return new L.LatLng(a, b, c); -}; - - -/* - * L.LatLngBounds represents a rectangular area on the map in geographical coordinates. - */ - -L.LatLngBounds = L.Class.extend({ - initialize: 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]); - } - }, - - // extend the bounds to contain the given point or bounds - extend: function (obj) { // (LatLng) or (LatLngBounds) - if (typeof obj[0] === 'number' || obj instanceof L.LatLng) { - obj = L.latLng(obj); - } else { - obj = L.latLngBounds(obj); - } - - if (obj instanceof L.LatLng) { - if (!this._southWest && !this._northEast) { - this._southWest = new L.LatLng(obj.lat, obj.lng, true); - this._northEast = new L.LatLng(obj.lat, obj.lng, true); - } 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._northEast.lat, this._southWest.lng, true); - }, - - getSouthEast: function () { - return new L.LatLng(this._southWest.lat, this._northEast.lng, true); - }, - - 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(); - - var latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat), - lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng); - - return latIntersects && lngIntersects; - }, - - toBBoxString: function () { - var sw = this._southWest, - ne = this._northEast; - return [sw.lng, sw.lat, ne.lng, ne.lat].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 = {}; - - - -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; - - // TODO refactor LatLng wrapping - return new L.LatLng(lat, lng, true); - } -}; - - - -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, true); - } -}; - - - -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); - } -}; - - - -L.CRS.EPSG3857 = L.Util.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.Util.extend({}, L.CRS.EPSG3857, { - code: 'EPSG:900913' -}); - - - -L.CRS.EPSG4326 = L.Util.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.Util.setOptions(this, options); - - this._initContainer(id); - this._initLayout(); - this._initHooks(); - this._initEvents(); - - if (options.maxBounds) { - this.setMaxBounds(options.maxBounds); - } - - if (options.center && options.zoom !== undefined) { - this.setView(L.latLng(options.center), options.zoom, true); - } - - this._initLayers(options.layers); - }, - - - // public methods that modify map state - - // replaced by animation-powered implementation in Map.PanAnimation.js - setView: function (center, zoom) { - this._resetView(L.latLng(center), this._limitZoom(zoom)); - return this; - }, - - setZoom: function (zoom) { // (Number) - return this.setView(this.getCenter(), zoom); - }, - - zoomIn: function (delta) { - return this.setZoom(this._zoom + (delta || 1)); - }, - - zoomOut: function (delta) { - return this.setZoom(this._zoom - (delta || 1)); - }, - - fitBounds: function (bounds) { // (LatLngBounds) - var zoom = this.getBoundsZoom(bounds); - return this.setView(L.latLngBounds(bounds).getCenter(), zoom); - }, - - fitWorld: function () { - var sw = new L.LatLng(-60, -170), - ne = new L.LatLng(85, 179); - - return this.fitBounds(new L.LatLngBounds(sw, ne)); - }, - - panTo: function (center) { // (LatLng) - return this.setView(center, this._zoom); - }, - - panBy: function (offset) { // (Point) - // replaced with animated panBy in Map.Animation.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) { - this._boundsMinZoom = null; - return this; - } - - var minZoom = this.getBoundsZoom(bounds, true); - - this._boundsMinZoom = minZoom; - - if (this._loaded) { - if (this._zoom < minZoom) { - this.setView(bounds.getCenter(), minZoom); - } else { - this.panInsideBounds(bounds); - } - } - - return this; - }, - - panInsideBounds: function (bounds) { - bounds = L.latLngBounds(bounds); - - var viewBounds = this.getBounds(), - viewSw = this.project(viewBounds.getSouthWest()), - viewNe = this.project(viewBounds.getNorthEast()), - sw = this.project(bounds.getSouthWest()), - ne = this.project(bounds.getNorthEast()), - dx = 0, - dy = 0; - - if (viewNe.y < ne.y) { // north - dy = ne.y - viewNe.y; - } - if (viewNe.x > ne.x) { // east - dx = ne.x - viewNe.x; - } - if (viewSw.y > sw.y) { // south - dy = sw.y - viewSw.y; - } - if (viewSw.x < sw.x) { // west - dx = sw.x - viewSw.x; - } - - return this.panBy(new L.Point(dx, dy, true)); - }, - - addLayer: function (layer) { - // TODO method is too big, refactor - - var id = L.Util.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)) { - this._layersMaxZoom = Math.max(this._layersMaxZoom || 0, layer.options.maxZoom); - } - if (layer.options && !isNaN(layer.options.minZoom)) { - this._layersMinZoom = Math.min(this._layersMinZoom || Infinity, layer.options.minZoom); - } - - // TODO looks ugly, refactor!!! - if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) { - this._tileLayersNum++; - this._tileLayersToLoad++; - layer.on('load', this._onTileLayerLoad, this); - } - - this.whenReady(function () { - layer.onAdd(this); - this.fire('layeradd', {layer: layer}); - }, this); - - return this; - }, - - removeLayer: function (layer) { - var id = L.Util.stamp(layer); - - if (!this._layers[id]) { return; } - - layer.onRemove(this); - - delete this._layers[id]; - - // 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.fire('layerremove', {layer: layer}); - }, - - hasLayer: function (layer) { - var id = L.Util.stamp(layer); - return this._layers.hasOwnProperty(id); - }, - - invalidateSize: function (animate) { - var oldSize = this.getSize(); - - this._sizeChanged = true; - - if (this.options.maxBounds) { - this.setMaxBounds(this.options.maxBounds); - } - - if (!this._loaded) { return this; } - - var offset = oldSize._subtract(this.getSize())._divideBy(2)._round(); - - if (animate === true) { - this.panBy(offset); - } else { - this._rawPanBy(offset); - - this.fire('move'); - - clearTimeout(this._sizeTimer); - this._sizeTimer = setTimeout(L.Util.bind(this.fire, this, 'moveend'), 200); - } - return this; - }, - - // TODO handler.addTo - addHandler: function (name, HandlerClass) { - if (!HandlerClass) { return; } - - this[name] = new HandlerClass(this); - - if (this.options[name]) { - this[name].enable(); - } - - return this; - }, - - - // public methods for getting map state - - getCenter: function () { // (Boolean) -> LatLng - 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 () { - var z1 = this.options.minZoom || 0, - z2 = this._layersMinZoom || 0, - z3 = this._boundsMinZoom || 0; - - return Math.max(z1, z2, z3); - }, - - getMaxZoom: function () { - var z1 = this.options.maxZoom === undefined ? Infinity : this.options.maxZoom, - z2 = this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom; - - return Math.min(z1, z2); - }, - - getBoundsZoom: function (bounds, inside) { // (LatLngBounds, Boolean) -> Number - bounds = L.latLngBounds(bounds); - - var size = this.getSize(), - zoom = this.options.minZoom || 0, - maxZoom = this.getMaxZoom(), - ne = bounds.getNorthEast(), - sw = bounds.getSouthWest(), - boundsSize, - nePoint, - swPoint, - zoomNotFound = true; - - if (inside) { - zoom--; - } - - do { - zoom++; - nePoint = this.project(ne, zoom); - swPoint = this.project(sw, zoom); - boundsSize = new L.Point(Math.abs(nePoint.x - swPoint.x), Math.abs(swPoint.y - nePoint.y)); - - if (!inside) { - zoomNotFound = boundsSize.x <= size.x && boundsSize.y <= size.y; - } else { - zoomNotFound = 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 () { - 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._initialTopLeftPoint); - return this.unproject(projectedPoint); - }, - - latLngToLayerPoint: function (latlng) { // (LatLng) - var projectedPoint = this.project(L.latLng(latlng))._round(); - return projectedPoint._subtract(this._initialTopLeftPoint); - }, - - 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._leaflet) { - throw new Error("Map container is already initialized."); - } - - container._leaflet = true; - }, - - _initLayout: function () { - var container = this._container; - - container.innerHTML = ''; - L.DomUtil.addClass(container, 'leaflet-container'); - - if (L.Browser.touch) { - L.DomUtil.addClass(container, 'leaflet-touch'); - } - - if (this.options.fadeAnimation) { - L.DomUtil.addClass(container, '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); - this._objectsPane = 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._objectsPane); - }, - - _initializers: [], - - _initHooks: function () { - var i, len; - for (i = 0, len = this._initializers.length; i < len; i++) { - this._initializers[i].call(this); - } - }, - - _initLayers: function (layers) { - layers = layers ? (layers instanceof Array ? layers : [layers]) : []; - - this._layers = {}; - this._tileLayersNum = 0; - - var i, len; - - for (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._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}); - - this.fire('move'); - - if (zoomChanged || afterZoomAnim) { - this.fire('zoomend'); - } - - this.fire('moveend', {hard: !preserveMapOffset}); - - if (loading) { - this.fire('load'); - } - }, - - _rawPanBy: function (offset) { - L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset)); - }, - - - // map events - - _initEvents: function () { - if (!L.DomEvent) { return; } - - L.DomEvent.on(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.on(this._container, events[i], this._fireMouseEvent, this); - } - - if (this.options.trackResize) { - L.DomEvent.on(window, 'resize', this._onResize, this); - } - }, - - _onResize: function () { - L.Util.cancelAnimFrame(this._resizeRequest); - this._resizeRequest = L.Util.requestAnimFrame(this.invalidateSize, this, false, this._container); - }, - - _onMouseClick: function (e) { - if (!this._loaded || (this.dragging && this.dragging.moved())) { return; } - - this.fire('preclick'); - this._fireMouseEvent(e); - }, - - _fireMouseEvent: function (e) { - if (!this._loaded) { 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 () { - // TODO super-ugly, refactor!!! - // clear scaled tiles after all new tiles are loaded (for performance) - this._tileLayersToLoad--; - if (this._tileLayersNum && !this._tileLayersToLoad && this._tileBg) { - clearTimeout(this._clearTileBgTimer); - this._clearTileBgTimer = setTimeout(L.Util.bind(this._clearTileBg, this), 500); - } - }, - - whenReady: function (callback, context) { - if (this._loaded) { - callback.call(context || this, this); - } else { - this.on('load', callback, context); - } - return this; - }, - - - // private methods for getting map state - - _getMapPanePos: function () { - return L.DomUtil.getPosition(this._mapPane); - }, - - _getTopLeftPoint: function () { - if (!this._loaded) { - throw new Error('Set map center and zoom first.'); - } - - return this._initialTopLeftPoint.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); - }, - - _getCenterLayerPoint: function () { - return this.containerPointToLayerPoint(this.getSize()._divideBy(2)); - }, - - _getCenterOffset: function (center) { - return this.latLngToLayerPoint(center).subtract(this._getCenterLayerPoint()); - }, - - _limitZoom: function (zoom) { - var min = this.getMinZoom(), - max = this.getMaxZoom(); - - return Math.max(min, Math.min(max, zoom)); - } -}); - -L.Map.addInitHook = function (fn) { - var args = Array.prototype.slice.call(arguments, 1); - - var init = typeof fn === 'function' ? fn : function () { - this[fn].apply(this, args); - }; - - this.prototype._initializers.push(init); -}; - -L.map = function (id, options) { - return new L.Map(id, options); -}; - - - -L.Projection.Mercator = { - MAX_LATITUDE: 85.0840591556, - - R_MINOR: 6356752.3142, - 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 = -r2 * 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 / r2), - 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, true); - } -}; - - - -L.CRS.EPSG3395 = L.Util.extend({}, L.CRS, { - code: 'EPSG:3395', - - projection: L.Projection.Mercator, - - transformation: (function () { - var m = L.Projection.Mercator, - r = m.R_MAJOR, - r2 = m.R_MINOR; - - return new L.Transformation(0.5 / (Math.PI * r), 0.5, -0.5 / (Math.PI * r2), 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, - /* (undefined works too) - zIndex: null, - tms: false, - continuousWorld: false, - noWrap: false, - zoomReverse: false, - detectRetina: false, - reuseTiles: false, - */ - unloadInvisibleTiles: L.Browser.mobile, - updateWhenIdle: L.Browser.mobile - }, - - initialize: function (url, options) { - options = L.Util.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--; - } - - this._url = url; - - var subdomains = this.options.subdomains; - - if (typeof subdomains === 'string') { - this.options.subdomains = subdomains.split(''); - } - }, - - onAdd: function (map) { - this._map = map; - - // create a container div for tiles - this._initContainer(); - - // create an image to clone for tiles - this._createTileProto(); - - // set up events - map.on({ - 'viewreset': this._resetCallback, - 'moveend': this._update - }, 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) { - map._panes.tilePane.removeChild(this._container); - - map.off({ - 'viewreset': this._resetCallback, - 'moveend': this._update - }, 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; - }, - - 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._map._panes.tilePane.empty = false; - this._reset(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.getElementsByClassName('leaflet-layer'), - edgeZIndex = -compare(Infinity, -Infinity), // -Ifinity for max, Infinity for min - zIndex; - - for (var 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 () { - L.DomUtil.setOpacity(this._container, this.options.opacity); - - // stupid webkit hack to force redrawing of tiles - var i, - tiles = this._tiles; - - if (L.Browser.webkit) { - for (i in tiles) { - if (tiles.hasOwnProperty(i)) { - tiles[i].style.webkitTransform += ' translate(0,0)'; - } - } - } - }, - - _initContainer: function () { - var tilePane = this._map._panes.tilePane; - - if (!this._container || tilePane.empty) { - this._container = L.DomUtil.create('div', 'leaflet-layer'); - - this._updateZIndex(); - - tilePane.appendChild(this._container); - - if (this.options.opacity < 1) { - this._updateOpacity(); - } - } - }, - - _resetCallback: function (e) { - this._reset(e.hard); - }, - - _reset: function (clearOldContainer) { - var key, - tiles = this._tiles; - - for (key in tiles) { - if (tiles.hasOwnProperty(key)) { - this.fire('tileunload', {tile: tiles[key]}); - } - } - - this._tiles = {}; - this._tilesToLoad = 0; - - if (this.options.reuseTiles) { - this._unusedTiles = []; - } - - if (clearOldContainer && this._container) { - this._container.innerHTML = ""; - } - - this._initContainer(); - }, - - _update: function (e) { - - if (!this._map) { return; } - - var bounds = this._map.getPixelBounds(), - zoom = this._map.getZoom(), - tileSize = this.options.tileSize; - - if (zoom > this.options.maxZoom || zoom < this.options.minZoom) { - return; - } - - var nwTilePoint = new L.Point( - Math.floor(bounds.min.x / tileSize), - Math.floor(bounds.min.y / tileSize)), - seTilePoint = new L.Point( - Math.floor(bounds.max.x / tileSize), - Math.floor(bounds.max.y / tileSize)), - tileBounds = new L.Bounds(nwTilePoint, seTilePoint); - - 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._container.appendChild(fragment); - }, - - _tileShouldBeLoaded: function (tilePoint) { - if ((tilePoint.x + ':' + tilePoint.y) in this._tiles) { - return false; // already loaded - } - - if (!this.options.continuousWorld) { - var limit = this._getWrapTileNum(); - - if (this.options.noWrap && (tilePoint.x < 0 || tilePoint.x >= limit) || - tilePoint.y < 0 || tilePoint.y >= limit) { - return false; // exceeds world bounds - } - } - - return true; - }, - - _removeOtherTiles: function (bounds) { - var kArr, x, y, key; - - for (key in this._tiles) { - if (this._tiles.hasOwnProperty(key)) { - 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._container) { - this._container.removeChild(tile); - } - - if (!L.Browser.android) { //For https://github.com/CloudMade/Leaflet/issues/137 - 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 - // android 3 browser not tested - // android 2 browser requires top/left or tiles disappear on load or first drag (reappear after zoom) https://github.com/CloudMade/Leaflet/issues/866 - // (other browsers don't currently care) - see debug/hacks/jitter.html for an example - L.DomUtil.setPosition(tile, tilePos, L.Browser.chrome || L.Browser.android23); - - this._tiles[tilePoint.x + ':' + tilePoint.y] = tile; - - this._loadTile(tile, tilePoint); - - if (tile.parentNode !== this._container) { - container.appendChild(tile); - } - }, - - _getZoomForUrl: function () { - - var options = this.options, - zoom = this._map.getZoom(); - - if (options.zoomReverse) { - zoom = options.maxZoom - zoom; - } - - return zoom + options.zoomOffset; - }, - - _getTilePos: function (tilePoint) { - var origin = this._map.getPixelOrigin(), - tileSize = this.options.tileSize; - - return tilePoint.multiplyBy(tileSize).subtract(origin); - }, - - // image-specific code (override to implement e.g. Canvas or SVG tile layer) - - getTileUrl: function (tilePoint) { - this._adjustTilePoint(tilePoint); - - return L.Util.template(this._url, L.Util.extend({ - s: this._getSubdomain(tilePoint), - z: this._getZoomForUrl(), - x: tilePoint.x, - y: tilePoint.y - }, this.options)); - }, - - _getWrapTileNum: function () { - // TODO refactor, limit is not valid for non-standard projections - return Math.pow(2, this._getZoomForUrl()); - }, - - _adjustTilePoint: function (tilePoint) { - - var limit = this._getWrapTileNum(); - - // wrap tile coordinates - if (!this.options.continuousWorld && !this.options.noWrap) { - tilePoint.x = ((tilePoint.x % limit) + limit) % limit; - } - - if (this.options.tms) { - tilePoint.y = limit - tilePoint.y - 1; - } - }, - - _getSubdomain: function (tilePoint) { - var index = (tilePoint.x + tilePoint.y) % this.options.subdomains.length; - return this.options.subdomains[index]; - }, - - _createTileProto: function () { - var img = this._tileImg = L.DomUtil.create('img', 'leaflet-tile'); - img.galleryimg = 'no'; - - var tileSize = this.options.tileSize; - img.style.width = tileSize + 'px'; - img.style.height = tileSize + 'px'; - }, - - _getTile: function () { - if (this.options.reuseTiles && this._unusedTiles.length > 0) { - var tile = this._unusedTiles.pop(); - this._resetTile(tile); - return tile; - } - return this._createTile(); - }, - - _resetTile: function (tile) { - // Override if data stored on a tile needs to be cleaned up before reuse - }, - - _createTile: function () { - var tile = this._tileImg.cloneNode(false); - tile.onselectstart = tile.onmousemove = L.Util.falseFn; - return tile; - }, - - _loadTile: function (tile, tilePoint) { - tile._layer = this; - tile.onload = this._tileOnLoad; - tile.onerror = this._tileOnError; - - tile.src = this.getTileUrl(tilePoint); - }, - - _tileLoaded: function () { - this._tilesToLoad--; - if (!this._tilesToLoad) { - this.fire('load'); - } - }, - - _tileOnLoad: function (e) { - 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 (e) { - 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 = 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.Util.extend({}, this.defaultWmsParams); - - if (options.detectRetina && L.Browser.retina) { - wmsParams.width = wmsParams.height = this.options.tileSize * 2; - } else { - wmsParams.width = wmsParams.height = this.options.tileSize; - } - - for (var i in options) { - // all keys that are not TileLayer options go to WMS params - if (!this.options.hasOwnProperty(i)) { - wmsParams[i] = options[i]; - } - } - - this.wmsParams = wmsParams; - - L.Util.setOptions(this, options); - }, - - onAdd: function (map) { - - var projectionKey = parseFloat(this.wmsParams.version) >= 1.3 ? 'crs' : 'srs'; - this.wmsParams[projectionKey] = map.options.crs.code; - - L.TileLayer.prototype.onAdd.call(this, map); - }, - - getTileUrl: function (tilePoint, zoom) { // (Point, Number) -> String - - var map = this._map, - crs = map.options.crs, - tileSize = this.options.tileSize, - - nwPoint = tilePoint.multiplyBy(tileSize), - sePoint = nwPoint.add(new L.Point(tileSize, tileSize)), - - nw = crs.project(map.unproject(nwPoint, zoom)), - se = crs.project(map.unproject(sePoint, zoom)), - - bbox = [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) + "&bbox=" + bbox; - }, - - setParams: function (params, noRedraw) { - - L.Util.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 = L.TileLayer.extend({ - options: { - async: false - }, - - initialize: function (options) { - L.Util.setOptions(this, options); - }, - - redraw: function () { - var i, - tiles = this._tiles; - - for (i in tiles) { - if (tiles.hasOwnProperty(i)) { - this._redrawTile(tiles[i]); - } - } - }, - - _redrawTile: function (tile) { - this.drawTile(tile, tile._tilePoint, tile._zoom); - }, - - _createTileProto: function () { - var proto = this._canvasProto = L.DomUtil.create('canvas', 'leaflet-tile'); - - var tileSize = this.options.tileSize; - proto.width = tileSize; - proto.height = tileSize; - }, - - _createTile: function () { - var tile = this._canvasProto.cloneNode(false); - tile.onselectstart = tile.onmousemove = L.Util.falseFn; - return tile; - }, - - _loadTile: function (tile, tilePoint, zoom) { - tile._layer = this; - tile._tilePoint = tilePoint; - tile._zoom = zoom; - - this.drawTile(tile, tilePoint, zoom); - - if (!this.options.async) { - this.tileDrawn(tile); - } - }, - - drawTile: function (tile, tilePoint, zoom) { - // override with rendering code - }, - - tileDrawn: function (tile) { - this._tileOnLoad.call(tile); - } -}); - - -L.tileLayer.canvas = function (options) { - return new L.TileLayer.Canvas(options); -}; -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.Util.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; - }, - - _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.Util.extend(this._image, { - galleryimg: 'no', - onselectstart: L.Util.falseFn, - onmousemove: L.Util.falseFn, - onload: L.Util.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), - currentSize = map.latLngToLayerPoint(se)._subtract(map.latLngToLayerPoint(nw)), - origin = topLeft._add(size._subtract(currentSize)._divideBy(2)); - - 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 = L.Class.extend({ - options: { - /* - iconUrl: (String) (required) - iconSize: (Point) (can be set through CSS) - iconAnchor: (Point) (centered by default if size is specified, can be set in CSS with negative margins) - popupAnchor: (Point) (if not specified, popup opens in the anchor point) - shadowUrl: (Point) (no shadow by default) - shadowSize: (Point) - shadowAnchor: (Point) - */ - className: '' - }, - - initialize: function (options) { - L.Util.setOptions(this, options); - }, - - createIcon: function () { - return this._createIcon('icon'); - }, - - createShadow: function () { - return this._createIcon('shadow'); - }, - - _createIcon: function (name) { - 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 = this._createImg(src); - 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) { - var el; - - if (!L.Browser.ie6) { - el = document.createElement('img'); - el.src = src; - } else { - el = document.createElement('div'); - el.style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="' + src + '")'; - } - return el; - }, - - _getIconUrl: function (name) { - return this.options[name + 'Url']; - } -}); - -L.icon = function (options) { - return new L.Icon(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.msTouch && type.indexOf('touch') === 0) { + return this.addMsTouchListener(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.msTouch && type.indexOf('touch') === 0) { + this.removeMsTouchListener(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; + } + return this; + }, -L.Icon.Default = L.Icon.extend({ + disableClickPropagation: function (el) { + var stop = L.DomEvent.stopPropagation; - options: { - iconSize: new L.Point(25, 41), - iconAnchor: new L.Point(12, 41), - popupAnchor: new L.Point(1, -34), + for (var i = L.Draggable.START.length - 1; i >= 0; i--) { + L.DomEvent.addListener(el, L.Draggable.START[i], stop); + } - shadowSize: new L.Point(41, 41) + return L.DomEvent + .addListener(el, 'click', L.DomEvent._fakeStop) + .addListener(el, 'dblclick', stop); }, - _getIconUrl: function (name) { - var key = name + 'Url'; + preventDefault: function (e) { - if (this.options[key]) { - return this.options[key]; + if (e.preventDefault) { + e.preventDefault(); + } else { + e.returnValue = false; } + return this; + }, - var path = L.Icon.Default.imagePath; + stop: function (e) { + return L.DomEvent.preventDefault(e).stopPropagation(e); + }, - if (!path) { - throw new Error("Couldn't autodetect L.Icon.Default.imagePath, set it manually."); + getMousePosition: function (e, container) { + + var ie7 = L.Browser.ie7, + body = document.body, + docEl = document.documentElement, + x = e.pageX ? e.pageX - body.scrollLeft - docEl.scrollLeft: e.clientX, + y = e.pageY ? e.pageY - body.scrollTop - docEl.scrollTop: e.clientY, + pos = new L.Point(x, y), + rect = container.getBoundingClientRect(), + left = rect.left - container.clientLeft, + top = rect.top - container.clientTop; + + // webkit (and ie <= 7) handles RTL scrollLeft different to everyone else + // https://code.google.com/p/closure-library/source/browse/trunk/closure/goog/style/bidi.js + if (!L.DomUtil.documentIsLtr() && (L.Browser.webkit || ie7)) { + left += container.scrollWidth - container.clientWidth; + + // ie7 shows the scrollbar by default and provides clientWidth counting it, so we + // need to add it back in if it is visible; scrollbar is on the left as we are RTL + if (ie7 && L.DomUtil.getStyle(container, 'overflow-y') !== 'hidden' && + L.DomUtil.getStyle(container, 'overflow') !== 'hidden') { + left += 17; + } } - return path + '/marker-' + name + '.png'; - } -}); + return pos._subtract(new L.Point(left, top)); + }, -L.Icon.Default.imagePath = (function () { - var scripts = document.getElementsByTagName('script'), - leafletRe = /\/?leaflet[\-\._]?([\w\-\._]*)\.js\??/; + getWheelDelta: function (e) { - var i, len, src, matches; + var delta = 0; - for (i = 0, len = scripts.length; i < len; i++) { - src = scripts[i].src; - matches = src.match(leafletRe); + if (e.wheelDelta) { + delta = e.wheelDelta / 120; + } + if (e.detail) { + delta = -e.detail / 3; + } + return delta; + }, - if (matches) { - return src.split(leafletRe)[0] + '/images'; + _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 1000ms 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 < 1000) || (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.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: '', - clickable: true, - draggable: false, - zIndexOffset: 0, - opacity: 1 - }, - - initialize: function (latlng, options) { - L.Util.setOptions(this, options); - this._latlng = L.latLng(latlng); - }, - - onAdd: function (map) { - this._map = map; - - map.on('viewreset', this.update, this); - - this._initIcon(); - this.update(); - - if (map.options.zoomAnimation && map.options.markerZoomAnimation) { - map.on('zoomanim', this._animateZoom, this); - } - }, - - addTo: function (map) { - map.addLayer(this); - return this; - }, - - onRemove: function (map) { - this._removeIcon(); - - 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(); - - this.fire('move', { latlng: this._latlng }); - }, - - setZIndexOffset: function (offset) { - this.options.zIndexOffset = offset; - this.update(); - }, - - setIcon: function (icon) { - if (this._map) { - this._removeIcon(); - } - - this.options.icon = icon; - - if (this._map) { - this._initIcon(); - this.update(); - } - }, - - update: function () { - if (!this._icon) { return; } - - var pos = this._map.latLngToLayerPoint(this._latlng).round(); - this._setPos(pos); - }, - - _initIcon: function () { - var options = this.options, - map = this._map, - animation = (map.options.zoomAnimation && map.options.markerZoomAnimation), - classToAdd = animation ? 'leaflet-zoom-animated' : 'leaflet-zoom-hide', - needOpacityUpdate = false; - - if (!this._icon) { - this._icon = options.icon.createIcon(); - - if (options.title) { - this._icon.title = options.title; - } - - this._initInteraction(); - needOpacityUpdate = (this.options.opacity < 1); - - L.DomUtil.addClass(this._icon, classToAdd); - } - if (!this._shadow) { - this._shadow = options.icon.createShadow(); - - if (this._shadow) { - L.DomUtil.addClass(this._shadow, classToAdd); - needOpacityUpdate = (this.options.opacity < 1); - } - } - - if (needOpacityUpdate) { - this._updateOpacity(); - } - - var panes = this._map._panes; - - panes.markerPane.appendChild(this._icon); - - if (this._shadow) { - panes.shadowPane.appendChild(this._shadow); - } - }, - - _removeIcon: function () { - var panes = this._map._panes; - - panes.markerPane.removeChild(this._icon); - - if (this._shadow) { - panes.shadowPane.removeChild(this._shadow); - } - - this._icon = this._shadow = null; - }, - - _setPos: function (pos) { - L.DomUtil.setPosition(this._icon, pos); - - if (this._shadow) { - L.DomUtil.setPosition(this._shadow, pos); - } - - this._icon.style.zIndex = pos.y + this.options.zIndexOffset; - }, - - _animateZoom: function (opt) { - var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center); - - this._setPos(pos); - }, - - _initInteraction: function () { - if (!this.options.clickable) { - return; - } - - var icon = this._icon, - events = ['dblclick', 'mousedown', 'mouseover', 'mouseout']; - - L.DomUtil.addClass(icon, 'leaflet-clickable'); - L.DomEvent.on(icon, 'click', this._onMouseClick, 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) { - if (this.hasEventListeners(e.type)) { - L.DomEvent.stopPropagation(e); - } - if (this.dragging && this.dragging.moved()) { return; } - if (this._map.dragging && this._map.dragging.moved()) { return; } - this.fire(e.type, { - originalEvent: e - }); - }, - - _fireMouseEvent: function (e) { - this.fire(e.type, { - originalEvent: e - }); - if (e.type !== 'mousedown') { - L.DomEvent.stopPropagation(e); - } - }, - - setOpacity: function (opacity) { - this.options.opacity = opacity; - if (this._map) { - this._updateOpacity(); - } - }, - - _updateOpacity: function () { - L.DomUtil.setOpacity(this._icon, this.options.opacity); - if (this._shadow) { - L.DomUtil.setOpacity(this._shadow, this.options.opacity); - } - } -}); - -L.marker = function (latlng, options) { - return new L.Marker(latlng, options); -}; +/* + * L.Draggable allows you to add dragging capabilities to any element. Supports mobile devices too. + */ -L.DivIcon = L.Icon.extend({ - options: { - iconSize: new L.Point(12, 12), // also can be set through CSS - /* - iconAnchor: (Point) - popupAnchor: (Point) - html: (String) - bgPos: (Point) - */ - className: 'leaflet-div-icon' +L.Draggable = L.Class.extend({ + includes: L.Mixin.Events, + + statics: { + START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'], + END: { + mousedown: 'mouseup', + touchstart: 'touchend', + MSPointerDown: 'touchend' + }, + MOVE: { + mousedown: 'mousemove', + touchstart: 'touchmove', + MSPointerDown: 'touchmove' + } }, - createIcon: function () { - var div = document.createElement('div'), - options = this.options; + initialize: function (element, dragStartTarget) { + this._element = element; + this._dragStartTarget = dragStartTarget || element; + }, - if (options.html) { - div.innerHTML = options.html; + 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); } - if (options.bgPos) { - div.style.backgroundPosition = - (-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px'; + 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._setIconStyles(div, 'icon'); - return div; + this._enabled = false; + this._moved = false; }, - createShadow: function () { - return null; - } -}); + _onDown: function (e) { + if (e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; } -L.divIcon = function (options) { - return new L.DivIcon(options); -}; + L.DomEvent + .stopPropagation(e); + if (L.Draggable._disabled) { return; } - -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: new L.Point(0, 6), - autoPanPadding: new L.Point(5, 5), - className: '' - }, - - initialize: function (options, source) { - L.Util.setOptions(this, options); - - this._source = source; - }, - - onAdd: function (map) { - this._map = map; - - if (!this._container) { - this._initLayout(); - } - this._updateContent(); - - var animFade = map.options.fadeAnimation; - - if (animFade) { - L.DomUtil.setOpacity(this._container, 0); - } - map._panes.popupPane.appendChild(this._container); - - map.on('viewreset', this._updatePosition, this); - - if (L.Browser.any3d) { - map.on('zoomanim', this._zoomAnimation, this); - } - - if (map.options.closePopupOnClick) { - map.on('preclick', this._close, this); - } - - this._update(); - - if (animFade) { - L.DomUtil.setOpacity(this._container, 1); - } - }, - - 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({ - viewreset: this._updatePosition, - preclick: this._close, - zoomanim: this._zoomAnimation - }, this); - - if (map.options.fadeAnimation) { - L.DomUtil.setOpacity(this._container, 0); - } - - this._map = null; - }, - - setLatLng: function (latlng) { - this._latlng = L.latLng(latlng); - this._update(); - return this; - }, - - setContent: function (content) { - this._content = content; - this._update(); - return this; - }, - - _close: function () { - var map = this._map; - - if (map) { - map._popup = null; - - map - .removeLayer(this) - .fire('popupclose', {popup: this}); - } - }, - - _initLayout: function () { - var prefix = 'leaflet-popup', - container = this._container = L.DomUtil.create('div', prefix + ' ' + this.options.className + ' leaflet-zoom-animated'), - closeButton; - - if (this.options.closeButton) { - closeButton = this._closeButton = L.DomUtil.create('a', prefix + '-close-button', container); - closeButton.href = '#close'; - closeButton.innerHTML = '×'; - - 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.on(this._contentNode, 'mousewheel', L.DomEvent.stopPropagation); - - this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container); - this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer); - }, - - _update: function () { - if (!this._map) { return; } - - this._container.style.visibility = 'hidden'; - - this._updateContent(); - this._updateLayout(); - this._updatePosition(); - - this._container.style.visibility = ''; - - this._adjustPan(); - }, - - _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 () { - var pos = this._map.latLngToLayerPoint(this._latlng), - is3d = L.Browser.any3d, - offset = this.options.offset; - - if (is3d) { - L.DomUtil.setPosition(this._container, pos); - } - - this._containerBottom = -offset.y - (is3d ? 0 : pos.y); - this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x + (is3d ? 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 (L.Browser.any3d) { - layerPos._add(L.DomUtil.getPosition(this._container)); - } - - var containerPos = map.layerPointToContainerPoint(layerPos), - padding = this.options.autoPanPadding, - size = map.getSize(), - dx = 0, - dy = 0; - - if (containerPos.x < 0) { - dx = containerPos.x - padding.x; - } - if (containerPos.x + containerWidth > size.x) { - dx = containerPos.x + containerWidth - size.x + padding.x; - } - if (containerPos.y < 0) { - dy = containerPos.y - padding.y; - } - if (containerPos.y + containerHeight > size.y) { - dy = containerPos.y + containerHeight - size.y + padding.y; - } - - if (dx || dy) { - map.panBy(new L.Point(dx, dy)); - } - }, - - _onCloseButtonClick: function (e) { - this._close(); - L.DomEvent.stop(e); - } -}); - -L.popup = function (options, source) { - return new L.Popup(options, source); -}; - - -/* - * Popup extension to L.Marker, adding openPopup & bindPopup methods. - */ - -L.Marker.include({ - openPopup: function () { - if (this._popup && this._map) { - this._popup.setLatLng(this._latlng); - this._map.openPopup(this._popup); - } - - return this; - }, - - closePopup: function () { - if (this._popup) { - this._popup._close(); - } - return this; - }, - - bindPopup: function (content, options) { - var anchor = L.point(this.options.icon.options.popupAnchor) || new L.Point(0, 0); - - anchor = anchor.add(L.Popup.prototype.options.offset); - - if (options && options.offset) { - anchor = anchor.add(options.offset); - } - - options = L.Util.extend({offset: anchor}, options); - - if (!this._popup) { - this - .on('click', this.openPopup, this) - .on('remove', this.closePopup, this) - .on('move', this._movePopup, this); - } - - this._popup = new L.Popup(options, this) - .setContent(content); - - return this; - }, - - unbindPopup: function () { - if (this._popup) { - this._popup = null; - this - .off('click', this.openPopup) - .off('remove', this.closePopup) - .off('move', this._movePopup); - } - return this; - }, - - _movePopup: function (e) { - this._popup.setLatLng(e.latlng); - } -}); - - - -L.Map.include({ - openPopup: function (popup) { - this.closePopup(); - - this._popup = popup; - - return this - .addLayer(popup) - .fire('popupopen', {popup: this._popup}); - }, - - closePopup: function () { - if (this._popup) { - this._popup._close(); - } - return this; - } -}); + L.DomUtil.disableImageDrag(); + L.DomUtil.disableTextSelection(); -/* - * L.LayerGroup is a class to combine several layers so 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 = L.Util.stamp(layer); - - this._layers[id] = layer; - - if (this._map) { - this._map.addLayer(layer); - } - - return this; - }, - - removeLayer: function (layer) { - var id = L.Util.stamp(layer); - - delete this._layers[id]; - - if (this._map) { - this._map.removeLayer(layer); - } - - return this; - }, - - 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) { - if (this._layers.hasOwnProperty(i)) { - 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) { - if (this._layers.hasOwnProperty(i)) { - method.call(context, this._layers[i]); - } - } - } -}); - -L.layerGroup = function (layers) { - return new L.LayerGroup(layers); -}; - - -/* - * L.FeatureGroup extends L.LayerGroup by introducing mouse events and bindPopup method shared between a group of layers. - */ - -L.FeatureGroup = L.LayerGroup.extend({ - includes: L.Mixin.Events, - - addLayer: function (layer) { - if (this._layers[L.Util.stamp(layer)]) { - return this; - } - - layer.on('click dblclick mouseover mouseout mousemove contextmenu', this._propagateEvent, this); - - L.LayerGroup.prototype.addLayer.call(this, layer); - - if (this._popupContent && layer.bindPopup) { - layer.bindPopup(this._popupContent); - } - - return this; - }, - - removeLayer: function (layer) { - layer.off('click dblclick mouseover mouseout mousemove contextmenu', this._propagateEvent, this); - - L.LayerGroup.prototype.removeLayer.call(this, layer); - - if (this._popupContent) { - return this.invoke('unbindPopup'); - } else { - return this; - } - }, - - bindPopup: function (content) { - this._popupContent = content; - return this.invoke('bindPopup', content); - }, - - 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()); - }, this); - return bounds; - }, - - _propagateEvent: function (e) { - e.layer = e.target; - e.target = this; - - 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. It's 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 in such way that SVG element doesn't exceed 1280px (vector layers flicker on dragend if it is) - CLIP_PADDING: L.Browser.mobile ? - Math.max(0, Math.min(0.5, - (1280 / Math.max(window.innerWidth, window.innerHeight) - 1) / 2)) - : 0.5 - }, - - options: { - stroke: true, - color: '#0033ff', - dashArray: null, - weight: 5, - opacity: 0.5, - - fill: false, - fillColor: null, //same as color by default - fillOpacity: 0.2, - - clickable: true - }, - - initialize: function (options) { - L.Util.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); - } - - 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); - - this._map = null; - - if (L.Browser.vml) { - this._container = null; - this._stroke = null; - this._fill = null; - } - - this.fire('remove'); - - map.off({ - 'viewreset': this.projectLatlngs, - 'moveend': this._updatePath - }, this); - }, - - projectLatlngs: function () { - // do all projection stuff here - }, - - setStyle: function (style) { - L.Util.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); - } -}); - - -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'); - 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'); - } - 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'); - } - } 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) { - this._path.setAttribute('class', '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.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); - } - 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) { - this._pathRoot.setAttribute('class', ' leaflet-zoom-animated'); - - this.on({ - 'zoomanim': this._animatePathZoom, - 'zoomend': this._endPathZoom - }); - } else { - this._pathRoot.setAttribute('class', ' leaflet-zoom-hide'); - } - - this.on('moveend', this._updateSvgViewport); - this._updateSvgViewport(); - } - }, - - _animatePathZoom: function (opt) { - var scale = this.getZoomScale(opt.zoom), - offset = this._getCenterOffset(opt.center).divideBy(1 - 1 / scale), - viewportPos = this.containerPointToLayerPoint(this.getSize().multiplyBy(-L.Path.CLIP_PADDING)), - origin = viewportPos.add(offset).round(); - - this._pathRoot.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString((origin.multiplyBy(-1).add(L.DomUtil.getPosition(this._pathRoot)).multiplyBy(scale).add(origin))) + ' 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 bindPopup method. - */ - -L.Path.include({ - - bindPopup: function (content, options) { - - if (!this._popup || this._popup.options !== 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); - } - return this; - }, - - openPopup: function (latlng) { - - if (this._popup) { - latlng = latlng || this._latlng || - this._latlngs[Math.floor(this._latlngs.length / 2)]; - - this._openPopup({latlng: latlng}); - } - - return this; - }, - - _openPopup: function (e) { - this._popup.setLatLng(e.latlng); - this._map.openPopup(this._popup); - }, - - _closePopup: function () { - this._popup._close(); - } -}); - - -/* - * 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 = ''; - - 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(''); - }; - } 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'); - 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 = options.dashArray.replace(/ *, */g, ' '); - } else { - stroke.dashStyle = ''; - } - } 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.Util.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); - - this._requestUpdate(); - - 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; - } - }, - - _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) { - if (options.fillOpacity < 1) { - ctx.globalAlpha = options.fillOpacity; - } - ctx.fill(); - } - - if (options.stroke) { - if (options.opacity < 1) { - 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) { - // TODO hand cursor - // TODO mouseover, mouseout, dblclick - this._map.on('click', this._onClick, this); - } - }, - - _onClick: function (e) { - if (this._containsPoint(e.layerPoint)) { - this.fire('click', 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 () { - if (this._pathZooming) { - //Don't redraw while zooming. See _updateSvgViewport for more details - 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.) - */ - -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; - }, - - /*jshint bitwise:false */ // temporarily allow bitwise oprations - - // 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 min = bounds.min, - max = bounds.max; - - var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds), - codeB = this._getBitCode(b, bounds); - - // 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 { - var 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; - }, - - /*jshint bitwise:true */ - - // 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 = L.Path.extend({ - initialize: function (latlngs, options) { - L.Path.prototype.initialize.call(this, options); - - this._latlngs = this._convertLatLngs(latlngs); - - // TODO refactor: move to Polyline.Edit.js - if (L.Handler.PolyEdit) { - this.editing = new L.Handler.PolyEdit(this); - - if (this.options.editable) { - this.editing.enable(); - } - } - }, - - 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 (index, howMany) { - var removed = [].splice.apply(this._latlngs, arguments); - this._convertLatLngs(this._latlngs); - 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 () { - var b = new L.LatLngBounds(); - var latLngs = this.getLatLngs(); - for (var i = 0, len = latLngs.length; i < len; i++) { - b.extend(latLngs[i]); - } - return b; - }, - - // TODO refactor: move to Polyline.Edit.js - onAdd: function (map) { - L.Path.prototype.onAdd.call(this, map); - - if (this.editing && this.editing.enabled()) { - this.editing.addHooks(); - } - }, - - onRemove: function (map) { - if (this.editing && this.editing.enabled()) { - this.editing.removeHooks(); - } - - L.Path.prototype.onRemove.call(this, map); - }, - - _convertLatLngs: function (latlngs) { - var i, len; - for (i = 0, len = latlngs.length; i < len; i++) { - if (latlngs[i] instanceof Array && typeof latlngs[i][0] !== 'number') { - return; - } - latlngs[i] = L.latLng(latlngs[i]); - } - return latlngs; - }, - - _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 utilify functions for polygons (clipping, etc.). - */ - -/*jshint bitwise:false */ // allow bitwise oprations 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 min = bounds.min, - max = bounds.max, - 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; -}; - -/*jshint bitwise:true */ - - -/* - * 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); - - if (latlngs && (latlngs[0] instanceof Array) && (typeof latlngs[0][0] !== 'number')) { - this._latlngs = this._convertLatLngs(latlngs[0]); - this._holes = latlngs.slice(1); - } - }, - - 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; - } - - for (var i = 0, len = this._holes.length, hole; i < len; i++) { - this._holePoints[i] = []; - - for (var j = 0, len2 = this._holes[i].length; j < len2; j++) { - this._holePoints[i][j] = this._map.latLngToLayerPoint(this._holes[i][j]); - } - } - }, - - _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) { - continue; - } - 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; - } - }); - } - - 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 - */ - -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(), - latLngBounds.getSouthWest() - ]; - } -}); - -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(), - latlng2 = new L.LatLng(this._latlng.lat, this._latlng.lng - lngRadius, true), - point2 = this._map.latLngToLayerPoint(latlng2); - - this._point = this._map.latLngToLayerPoint(this._latlng); - this._radius = Math.max(Math.round(this._point.x - point2.x), 1); - }, - - getBounds: function () { - var map = this._map, - delta = this._radius * Math.cos(Math.PI / 4), - point = map.project(this._latlng), - swPoint = new L.Point(point.x - delta, point.y + delta), - nePoint = new L.Point(point.x + delta, point.y - delta), - sw = map.unproject(swPoint), - ne = map.unproject(nePoint); - - return new L.LatLngBounds(sw, ne); - }, - - 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; - }, - - _getLngRadius: function () { - var equatorLength = 40075017, - hLength = equatorLength * Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat); - - return (this._mRadius / hLength) * 360; - }, - - _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); - }, - - setRadius: function (radius) { - this._radius = radius; - return this.redraw(); - } -}); - -L.circleMarker = function (latlng, options) { - return new L.CircleMarker(latlng, options); -}; - - - -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; - } -}); - - - -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; - } -}); - - -/* - * Circle canvas specific drawing parts. - */ - -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); - } -}); - - -L.GeoJSON = L.FeatureGroup.extend({ - initialize: function (geojson, options) { - L.Util.setOptions(this, options); - - this._layers = {}; - - if (geojson) { - this.addData(geojson); - } - }, - - addData: function (geojson) { - var features = geojson instanceof Array ? geojson : geojson.features, - i, len; - - if (features) { - for (i = 0, len = features.length; i < len; i++) { - 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); - layer.feature = geojson; - - this.resetStyle(layer); - - if (options.onEachFeature) { - options.onEachFeature(geojson, layer); - } - - return this.addLayer(layer); - }, - - resetStyle: function (layer) { - var style = this.options.style; - if (style) { - 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.Util.extend(L.GeoJSON, { - geometryToLayer: function (geojson, pointToLayer) { - var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson, - coords = geometry.coordinates, - layers = [], - latlng, latlngs, i, len, layer; - - switch (geometry.type) { - case 'Point': - latlng = this.coordsToLatLng(coords); - return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng); - - case 'MultiPoint': - for (i = 0, len = coords.length; i < len; i++) { - latlng = this.coordsToLatLng(coords[i]); - layer = pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng); - layers.push(layer); - } - return new L.FeatureGroup(layers); - - case 'LineString': - latlngs = this.coordsToLatLngs(coords); - return new L.Polyline(latlngs); - - case 'Polygon': - latlngs = this.coordsToLatLngs(coords, 1); - return new L.Polygon(latlngs); - - case 'MultiLineString': - latlngs = this.coordsToLatLngs(coords, 1); - return new L.MultiPolyline(latlngs); - - case "MultiPolygon": - latlngs = this.coordsToLatLngs(coords, 2); - return new L.MultiPolygon(latlngs); - - case "GeometryCollection": - for (i = 0, len = geometry.geometries.length; i < len; i++) { - layer = this.geometryToLayer(geometry.geometries[i], pointToLayer); - layers.push(layer); - } - return new L.FeatureGroup(layers); - - default: - throw new Error('Invalid GeoJSON object.'); - } - }, - - coordsToLatLng: function (coords, reverse) { // (Array, Boolean) -> LatLng - var lat = parseFloat(coords[reverse ? 0 : 1]), - lng = parseFloat(coords[reverse ? 1 : 0]); - - return new L.LatLng(lat, lng, true); - }, - - coordsToLatLngs: function (coords, levelsDeep, reverse) { // (Array, Number, Boolean) -> Array - var latlng, - latlngs = [], - i, len; - - for (i = 0, len = coords.length; i < len; i++) { - latlng = levelsDeep ? - this.coordsToLatLngs(coords[i], levelsDeep - 1, reverse) : - this.coordsToLatLng(coords[i], reverse); - - latlngs.push(latlng); - } - - return latlngs; - } -}); - -L.geoJson = function (geojson, options) { - return new L.GeoJSON(geojson, options); -}; - - -/* - * L.DomEvent contains functions for working with DOM events. - */ - -L.DomEvent = { - /* inpired by John Resig, Dean Edwards and YUI addEvent implementations */ - addListener: function (obj, type, fn, context) { // (HTMLElement, String, Function[, Object]) - - var id = L.Util.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.touch && (type === 'dblclick') && this.addDoubleTapListener) { - return this.addDoubleTapListener(obj, handler, id); - - } else 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 { - 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.Util.stamp(fn), - key = '_leaflet_' + type + id, - handler = obj[key]; - - if (!handler) { return; } - - 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; - } - return this; - }, - - disableClickPropagation: function (el) { - - var stop = L.DomEvent.stopPropagation; - - return L.DomEvent - .addListener(el, L.Draggable.START, stop) - .addListener(el, 'click', stop) - .addListener(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) { - - var body = document.body, - docEl = document.documentElement, - x = e.pageX ? e.pageX : e.clientX + body.scrollLeft + docEl.scrollLeft, - y = e.pageY ? e.pageY : e.clientY + body.scrollTop + docEl.scrollTop, - pos = new L.Point(x, y); - - return (container ? pos._subtract(L.DomUtil.getViewportOffset(container)) : pos); - }, - - getWheelDelta: function (e) { - - var delta = 0; - - if (e.wheelDelta) { - delta = e.wheelDelta / 120; - } - if (e.detail) { - delta = -e.detail / 3; - } - return delta; - }, - - // 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); - }, - - /*jshint noarg:false */ - _getEvent: function () { // evil magic for IE - - 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; - } - /*jshint noarg:false */ -}; - -L.DomEvent.on = L.DomEvent.addListener; -L.DomEvent.off = L.DomEvent.removeListener; + var first = e.touches ? e.touches[0] : e, + el = first.target; + + // if touching a link, highlight it + if (L.Browser.touch && el.tagName.toLowerCase() === 'a') { + L.DomUtil.addClass(el, 'leaflet-active'); + } + + this._moved = false; + + if (this._moving) { return; } + + 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) { 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; } + + L.DomEvent.preventDefault(e); + + if (!this._moved) { + this.fire('dragstart'); + + this._moved = true; + this._startPos = L.DomUtil.getPosition(this._element).subtract(offset); + + if (!L.Browser.touch) { + L.DomUtil.addClass(document.body, 'leaflet-dragging'); + } + } + + 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 () { + if (!L.Browser.touch) { + L.DomUtil.removeClass(document.body, 'leaflet-dragging'); + } + + 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) { + // ensure drag is not fired after dragend + L.Util.cancelAnimFrame(this._animRequest); -/* - * 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', - END: L.Browser.touch ? 'touchend' : 'mouseup', - MOVE: L.Browser.touch ? 'touchmove' : 'mousemove', - TAP_TOLERANCE: 15 - }, - - initialize: function (element, dragStartTarget) { - this._element = element; - this._dragStartTarget = dragStartTarget || element; - }, - - enable: function () { - if (this._enabled) { - return; - } - L.DomEvent.on(this._dragStartTarget, L.Draggable.START, this._onDown, this); - this._enabled = true; - }, - - disable: function () { - if (!this._enabled) { - return; - } - L.DomEvent.off(this._dragStartTarget, L.Draggable.START, this._onDown); - this._enabled = false; - this._moved = false; - }, - - _onDown: function (e) { - if ((!L.Browser.touch && e.shiftKey) || - ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; } - - L.DomEvent.preventDefault(e); - - if (L.Draggable._disabled) { return; } - - this._simulateClick = true; - - if (e.touches && e.touches.length > 1) { - this._simulateClick = false; - return; - } - - var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e), - el = first.target; - - if (L.Browser.touch && el.tagName.toLowerCase() === 'a') { - L.DomUtil.addClass(el, 'leaflet-active'); - } - - this._moved = false; - if (this._moving) { - return; - } - - 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, this._onMove, this); - L.DomEvent.on(document, L.Draggable.END, this._onUp, this); - }, - - _onMove: function (e) { - if (e.touches && e.touches.length > 1) { return; } - - var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e), - newPoint = new L.Point(first.clientX, first.clientY), - diffVec = newPoint.subtract(this._startPoint); - - if (!diffVec.x && !diffVec.y) { return; } - - L.DomEvent.preventDefault(e); - - if (!this._moved) { - this.fire('dragstart'); - this._moved = true; - - this._startPos = L.DomUtil.getPosition(this._element).subtract(diffVec); - - if (!L.Browser.touch) { - L.DomUtil.disableTextSelection(); - this._setMovingCursor(); - } - } - - this._newPos = this._startPos.add(diffVec); - 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 (e) { - if (this._simulateClick && e.changedTouches) { - var first = e.changedTouches[0], - el = first.target, - dist = (this._newPos && this._newPos.distanceTo(this._startPos)) || 0; - - if (el.tagName.toLowerCase() === 'a') { - L.DomUtil.removeClass(el, 'leaflet-active'); - } - - if (dist < L.Draggable.TAP_TOLERANCE) { - this._simulateEvent('click', first); - } - } - - if (!L.Browser.touch) { - L.DomUtil.enableTextSelection(); - this._restoreCursor(); - } - - L.DomEvent.off(document, L.Draggable.MOVE, this._onMove); - L.DomEvent.off(document, L.Draggable.END, this._onUp); - - if (this._moved) { - // ensure drag is not fired after dragend - L.Util.cancelAnimFrame(this._animRequest); - - this.fire('dragend'); - } - this._moving = false; - }, - - _setMovingCursor: function () { - L.DomUtil.addClass(document.body, 'leaflet-dragging'); - }, - - _restoreCursor: function () { - L.DomUtil.removeClass(document.body, 'leaflet-dragging'); - }, - - _simulateEvent: function (type, e) { - var simulatedEvent = document.createEvent('MouseEvents'); - - 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); - } -}); + this.fire('dragend'); + } + + this._moving = false; + } +}); /* - * L.Handler classes are used internally to inject interaction features to classes like Map and Marker. - */ + 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) { @@ -5644,7 +6601,7 @@ L.Handler = L.Class.extend({ /* - * L.Handler.MapDrag is used internally by L.Map to make the map draggable. + * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default. */ L.Map.mergeOptions({ @@ -5652,17 +6609,20 @@ L.Map.mergeOptions({ inertia: !L.Browser.android23, inertiaDeceleration: 3400, // px/s^2 - inertiaMaxSpeed: 6000, // px/s + inertiaMaxSpeed: Infinity, // px/s inertiaThreshold: L.Browser.touch ? 32 : 18, // ms + easeLinearity: 0.25, // TODO refactor, move to CRS - worldCopyJump: true + worldCopyJump: false }); L.Map.Drag = L.Handler.extend({ addHooks: function () { if (!this._draggable) { - this._draggable = new L.Draggable(this._map._mapPane, this._map._container); + var map = this._map; + + this._draggable = new L.Draggable(map._mapPane, map._container); this._draggable.on({ 'dragstart': this._onDragStart, @@ -5670,11 +6630,11 @@ L.Map.Drag = L.Handler.extend({ 'dragend': this._onDragEnd }, this); - var options = this._map.options; - - if (options.worldCopyJump) { + if (map.options.worldCopyJump) { this._draggable.on('predrag', this._onPreDrag, this); - this._map.on('viewreset', this._onViewReset, this); + map.on('viewreset', this._onViewReset, this); + + this._onViewReset(); } } this._draggable.enable(); @@ -5696,8 +6656,8 @@ L.Map.Drag = L.Handler.extend({ } map - .fire('movestart') - .fire('dragstart'); + .fire('movestart') + .fire('dragstart'); if (map.options.inertia) { this._positions = []; @@ -5720,40 +6680,40 @@ L.Map.Drag = L.Handler.extend({ } this._map - .fire('move') - .fire('drag'); + .fire('move') + .fire('drag'); }, _onViewReset: function () { + // TODO fix hardcoded Earth values var pxCenter = this._map.getSize()._divideBy(2), - pxWorldCenter = this._map.latLngToLayerPoint(new L.LatLng(0, 0)); + pxWorldCenter = this._map.latLngToLayerPoint([0, 0]); this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x; - this._worldWidth = this._map.project(new L.LatLng(0, 180)).x; + this._worldWidth = this._map.project([0, 180]).x; }, _onPreDrag: function () { // TODO refactor to be able to adjust map pane position after zoom - var map = this._map, - 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; + 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 () { var map = this._map, - options = map.options, - delay = +new Date() - this._lastTime, + options = map.options, + delay = +new Date() - this._lastTime, - noInertia = !options.inertia || - delay > options.inertiaThreshold || - this._positions[0] === undefined; + noInertia = !options.inertia || delay > options.inertiaThreshold || !this._positions[0]; + + map.fire('dragend'); if (noInertia) { map.fire('moveend'); @@ -5761,32 +6721,31 @@ L.Map.Drag = L.Handler.extend({ } else { var direction = this._lastPos.subtract(this._positions[0]), - duration = (this._lastTime + delay - this._times[0]) / 1000, + duration = (this._lastTime + delay - this._times[0]) / 1000, + ease = options.easeLinearity, - speedVector = direction.multiplyBy(0.58 / duration), - speed = speedVector.distanceTo(new L.Point(0, 0)), + speedVector = direction.multiplyBy(ease / duration), + speed = speedVector.distanceTo([0, 0]), - limitedSpeed = Math.min(options.inertiaMaxSpeed, speed), - limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed), + limitedSpeed = Math.min(options.inertiaMaxSpeed, speed), + limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed), - decelerationDuration = limitedSpeed / options.inertiaDeceleration, - offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round(); + decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease), + offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round(); - L.Util.requestAnimFrame(L.Util.bind(function () { - this._map.panBy(offset, decelerationDuration); - }, this)); - } - - map.fire('dragend'); + if (!offset.x || !offset.y) { + map.fire('moveend'); - if (options.maxBounds) { - // TODO predrag validation instead of animation - L.Util.requestAnimFrame(this._panInsideMaxBounds, map, true, map._container); + } else { + L.Util.requestAnimFrame(function () { + map.panBy(offset, { + duration: decelerationDuration, + easeLinearity: ease, + noMoveStart: true + }); + }); + } } - }, - - _panInsideMaxBounds: function () { - this.panInsideBounds(this.options.maxBounds); } }); @@ -5794,7 +6753,7 @@ L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag); /* - * L.Handler.DoubleClickZoom is used internally by L.Map to add double-click zooming. + * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default. */ L.Map.mergeOptions({ @@ -5803,140 +6762,347 @@ L.Map.mergeOptions({ L.Map.DoubleClickZoom = L.Handler.extend({ addHooks: function () { - this._map.on('dblclick', this._onDoubleClick); + this._map.on('dblclick', this._onDoubleClick, this); }, removeHooks: function () { - this._map.off('dblclick', this._onDoubleClick); + this._map.off('dblclick', this._onDoubleClick, this); }, _onDoubleClick: function (e) { - this.setView(e.latlng, this._zoom + 1); + var map = this._map, + zoom = map.getZoom() + 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 internally by L.Map to enable mouse scroll wheel zooming on the map. + * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map. */ L.Map.mergeOptions({ - scrollWheelZoom: !L.Browser.touch + 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.msTouch ? 'MSPointerDown' : 'touchstart', + _touchend: L.Browser.msTouch ? 'MSPointerUp' : '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.msTouch) { + 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.msTouch) { + var idx = trackedTouches.indexOf(e.pointerId); + if (idx === -1) { + return; + } + trackedTouches.splice(idx, 1); + } + + if (doubleTap) { + if (L.Browser.msTouch) { + // 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 msTouch 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.msTouch ? document.documentElement : obj; + + obj.addEventListener(touchstart, onTouchStart, false); + endElement.addEventListener(touchend, onTouchEnd, false); + + if (L.Browser.msTouch) { + endElement.addEventListener('MSPointerCancel', onTouchEnd, false); + } + + return this; + }, + + removeDoubleTapListener: function (obj, id) { + var pre = '_leaflet_'; + + obj.removeEventListener(this._touchstart, obj[pre + this._touchstart + id], false); + (L.Browser.msTouch ? document.documentElement : obj).removeEventListener( + this._touchend, obj[pre + this._touchend + id], false); + + if (L.Browser.msTouch) { + document.documentElement.removeEventListener('MSPointerCancel', 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, { + + _msTouches: [], + _msDocumentListener: false, + + // Provides a touch events wrapper for msPointer events. + // Based on changes by veproza https://github.com/CloudMade/Leaflet/pull/1019 + + addMsTouchListener: function (obj, type, handler, id) { + + switch (type) { + case 'touchstart': + return this.addMsTouchListenerStart(obj, type, handler, id); + case 'touchend': + return this.addMsTouchListenerEnd(obj, type, handler, id); + case 'touchmove': + return this.addMsTouchListenerMove(obj, type, handler, id); + default: + throw 'Unknown touch event type'; + } + }, + + addMsTouchListenerStart: function (obj, type, handler, id) { + var pre = '_leaflet_', + touches = this._msTouches; + + var cb = function (e) { + + var alreadyInArray = false; + for (var i = 0; i < touches.length; i++) { + if (touches[i].pointerId === e.pointerId) { + alreadyInArray = true; + break; + } + } + if (!alreadyInArray) { + touches.push(e); + } + + e.touches = touches.slice(); + e.changedTouches = [e]; + + handler(e); + }; + + obj[pre + 'touchstart' + id] = cb; + obj.addEventListener('MSPointerDown', cb, false); + + // need to also listen for end events to keep the _msTouches list accurate + // this needs to be on the body and never go away + if (!this._msDocumentListener) { + var internalCb = function (e) { + for (var i = 0; i < touches.length; i++) { + if (touches[i].pointerId === e.pointerId) { + touches.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('MSPointerUp', internalCb, false); + document.documentElement.addEventListener('MSPointerCancel', internalCb, false); + + this._msDocumentListener = true; + } + + return this; }, - removeHooks: function () { - L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll); - }, + addMsTouchListenerMove: function (obj, type, handler, id) { + var pre = '_leaflet_', + touches = this._msTouches; - _onWheelScroll: function (e) { - var delta = L.DomEvent.getWheelDelta(e); + function cb(e) { - this._delta += delta; - this._lastMousePos = this._map.mouseEventToContainerPoint(e); + // don't fire touch moves when mouse isn't down + if (e.pointerType === e.MSPOINTER_TYPE_MOUSE && e.buttons === 0) { return; } - if (!this._startTime) { - this._startTime = +new Date(); - } + for (var i = 0; i < touches.length; i++) { + if (touches[i].pointerId === e.pointerId) { + touches[i] = e; + break; + } + } - var left = Math.max(40 - (+new Date() - this._startTime), 0); + e.touches = touches.slice(); + e.changedTouches = [e]; - clearTimeout(this._timer); - this._timer = setTimeout(L.Util.bind(this._performZoom, this), left); + handler(e); + } - L.DomEvent.preventDefault(e); - L.DomEvent.stopPropagation(e); - }, + obj[pre + 'touchmove' + id] = cb; + obj.addEventListener('MSPointerMove', cb, false); - _performZoom: function () { - var map = this._map, - delta = Math.round(this._delta), - zoom = map.getZoom(); + return this; + }, - delta = Math.max(Math.min(delta, 4), -4); - delta = map._limitZoom(zoom + delta) - zoom; + addMsTouchListenerEnd: function (obj, type, handler, id) { + var pre = '_leaflet_', + touches = this._msTouches; - this._delta = 0; + var cb = function (e) { + for (var i = 0; i < touches.length; i++) { + if (touches[i].pointerId === e.pointerId) { + touches.splice(i, 1); + break; + } + } - this._startTime = null; + e.touches = touches.slice(); + e.changedTouches = [e]; - if (!delta) { return; } + handler(e); + }; - var newZoom = zoom + delta, - newCenter = this._getCenterForScrollWheelZoom(newZoom); + obj[pre + 'touchend' + id] = cb; + obj.addEventListener('MSPointerUp', cb, false); + obj.addEventListener('MSPointerCancel', cb, false); - map.setView(newCenter, newZoom); + return this; }, - _getCenterForScrollWheelZoom: function (newZoom) { - var map = this._map, - scale = map.getZoomScale(newZoom), - viewHalf = map.getSize()._divideBy(2), - centerOffset = this._lastMousePos._subtract(viewHalf)._multiplyBy(1 - 1 / scale), - newCenterPoint = map._getTopLeftPoint()._add(viewHalf)._add(centerOffset); + removeMsTouchListener: function (obj, type, id) { + var pre = '_leaflet_', + cb = obj[pre + type + id]; + + switch (type) { + case 'touchstart': + obj.removeEventListener('MSPointerDown', cb, false); + break; + case 'touchmove': + obj.removeEventListener('MSPointerMove', cb, false); + break; + case 'touchend': + obj.removeEventListener('MSPointerUp', cb, false); + obj.removeEventListener('MSPointerCancel', cb, false); + break; + } - return map.unproject(newCenterPoint); + return this; } }); -L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom); - - -L.Util.extend(L.DomEvent, { - // inspired by Zepto touch code by Thomas Fuchs - addDoubleTapListener: function (obj, handler, id) { - var last, - doubleTap = false, - delay = 250, - touch, - pre = '_leaflet_', - touchstart = 'touchstart', - touchend = 'touchend'; - - function onTouchStart(e) { - if (e.touches.length !== 1) { - return; - } - - var now = Date.now(), - delta = now - (last || now); - - touch = e.touches[0]; - doubleTap = (delta > 0 && delta <= delay); - last = now; - } - function onTouchEnd(e) { - if (doubleTap) { - touch.type = 'dblclick'; - handler(touch); - last = null; - } - } - obj[pre + touchstart + id] = onTouchStart; - obj[pre + touchend + id] = onTouchEnd; - - obj.addEventListener(touchstart, onTouchStart, false); - obj.addEventListener(touchend, onTouchEnd, false); - return this; - }, - - removeDoubleTapListener: function (obj, id) { - var pre = '_leaflet_'; - obj.removeEventListener(obj, obj[pre + 'touchstart' + id], false); - obj.removeEventListener(obj, obj[pre + 'touchend' + id], false); - return this; - } -}); - /* - * L.Handler.TouchZoom is used internally by L.Map to add touch-zooming on Webkit-powered mobile browsers. + * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers. */ L.Map.mergeOptions({ @@ -5958,8 +7124,8 @@ L.Map.TouchZoom = L.Handler.extend({ 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(); + p2 = map.mouseEventToLayerPoint(e.touches[1]), + viewCenter = map._getCenterLayerPoint(); this._startCenter = p1.add(p2)._divideBy(2); this._startDist = p1.distanceTo(p2); @@ -5974,19 +7140,19 @@ L.Map.TouchZoom = L.Handler.extend({ } L.DomEvent - .on(document, 'touchmove', this._onTouchMove, this) - .on(document, 'touchend', this._onTouchEnd, this); + .on(document, 'touchmove', this._onTouchMove, this) + .on(document, 'touchend', this._onTouchEnd, this); L.DomEvent.preventDefault(e); }, _onTouchMove: function (e) { - if (!e.touches || e.touches.length !== 2) { return; } - 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]); + p2 = map.mouseEventToLayerPoint(e.touches[1]); this._scale = p1.distanceTo(p2) / this._startDist; this._delta = p1._add(p2)._divideBy(2)._subtract(this._startCenter); @@ -5994,66 +7160,59 @@ L.Map.TouchZoom = L.Handler.extend({ if (this._scale === 1) { return; } if (!this._moved) { - L.DomUtil.addClass(map._mapPane, 'leaflet-zoom-anim leaflet-touching'); + L.DomUtil.addClass(map._mapPane, 'leaflet-touching'); map - .fire('movestart') - .fire('zoomstart') - ._prepareTileBg(); + .fire('movestart') + .fire('zoomstart'); this._moved = true; } L.Util.cancelAnimFrame(this._animRequest); - this._animRequest = L.Util.requestAnimFrame(this._updateOnMove, this, true, this._map._container); + 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); - - map.fire('zoomanim', { - center: center, - zoom: map.getScaleZoom(this._scale) - }); - - // Used 2 translates instead of transform-origin because of a very strange bug - - // it didn't count the origin on the first touch-zoom but worked correctly afterwards + origin = this._getScaleOrigin(), + center = map.layerPointToLatLng(origin), + zoom = map.getScaleZoom(this._scale); - map._tileBg.style[L.DomUtil.TRANSFORM] = - L.DomUtil.getTranslateString(this._delta) + ' ' + - L.DomUtil.getScaleString(this._scale, this._startCenter); + map._animateZoom(center, zoom, this._startCenter, this._scale, this._delta); }, - _onTouchEnd: function (e) { - if (!this._moved || !this._zooming) { return; } + _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); + .off(document, 'touchmove', this._onTouchMove) + .off(document, 'touchend', this._onTouchEnd); var origin = this._getScaleOrigin(), - center = map.layerPointToLatLng(origin), + 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); + oldZoom = map.getZoom(), + floatZoomDelta = map.getScaleZoom(this._scale) - oldZoom, + roundZoomDelta = (floatZoomDelta > 0 ? + Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)), - map.fire('zoomanim', { - center: center, - zoom: zoom - }); + zoom = map._limitZoom(oldZoom + roundZoomDelta), + scale = map.getZoomScale(zoom) / this._scale; - map._runAnimation(center, zoom, map.getZoomScale(zoom) / this._scale, origin, true); + map._animateZoom(center, zoom, origin, scale); }, _getScaleOrigin: function () { @@ -6066,7 +7225,117 @@ L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom); /* - * L.Handler.ShiftDragZoom is used internally by L.Map to add shift-drag zoom (zoom to a selected bounding box). + * 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.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.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.msTouch) { + 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({ @@ -6092,6 +7361,7 @@ L.Map.BoxZoom = L.Handler.extend({ if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; } L.DomUtil.disableTextSelection(); + L.DomUtil.disableImageDrag(); this._startLayerPoint = this._map.mouseEventToLayerPoint(e); @@ -6102,59 +7372,78 @@ L.Map.BoxZoom = L.Handler.extend({ this._container.style.cursor = 'crosshair'; L.DomEvent - .on(document, 'mousemove', this._onMouseMove, this) - .on(document, 'mouseup', this._onMouseUp, this) - .preventDefault(e); - - this._map.fire("boxzoomstart"); + .on(document, 'mousemove', this._onMouseMove, this) + .on(document, 'mouseup', this._onMouseUp, this) + .on(document, 'keydown', this._onKeyDown, this); + + this._map.fire('boxzoomstart'); }, _onMouseMove: function (e) { var startPoint = this._startLayerPoint, - box = this._box, + box = this._box, - layerPoint = this._map.mouseEventToLayerPoint(e), - offset = layerPoint.subtract(startPoint), + 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)); + newPos = new L.Point( + Math.min(layerPoint.x, startPoint.x), + Math.min(layerPoint.y, startPoint.y)); L.DomUtil.setPosition(box, newPos); // TODO refactor: remove hardcoded 4 pixels - box.style.width = (Math.abs(offset.x) - 4) + 'px'; - box.style.height = (Math.abs(offset.y) - 4) + 'px'; + box.style.width = (Math.max(0, Math.abs(offset.x) - 4)) + 'px'; + box.style.height = (Math.max(0, Math.abs(offset.y) - 4)) + 'px'; }, - _onMouseUp: function (e) { + _finish: function () { 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, '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); + layerPoint = map.mouseEventToLayerPoint(e); + + if (this._startLayerPoint.equals(layerPoint)) { return; } var bounds = new L.LatLngBounds( - map.layerPointToLatLng(this._startLayerPoint), - map.layerPointToLatLng(layerPoint)); + map.layerPointToLatLng(this._startLayerPoint), + map.layerPointToLatLng(layerPoint)); map.fitBounds(bounds); - - map.fire("boxzoomend", { + + 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, @@ -6163,14 +7452,13 @@ L.Map.mergeOptions({ L.Map.Keyboard = L.Handler.extend({ - // list of e.keyCode values for particular actions keyCodes: { left: [37], right: [39], down: [40], up: [38], zoomIn: [187, 107, 61], - zoomOut: [189, 109] + zoomOut: [189, 109, 173] }, initialize: function (map) { @@ -6185,37 +7473,45 @@ L.Map.Keyboard = L.Handler.extend({ // make the container focusable by tabbing if (container.tabIndex === -1) { - container.tabIndex = "0"; + container.tabIndex = '0'; } L.DomEvent - .addListener(container, 'focus', this._onFocus, this) - .addListener(container, 'blur', this._onBlur, this) - .addListener(container, 'mousedown', this._onMouseDown, this); + .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); + .on('focus', this._addHooks, this) + .on('blur', this._removeHooks, this); }, removeHooks: function () { this._removeHooks(); var container = this._map._container; + L.DomEvent - .removeListener(container, 'focus', this._onFocus, this) - .removeListener(container, 'blur', this._onBlur, this) - .removeListener(container, 'mousedown', this._onMouseDown, this); + .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); + .off('focus', this._addHooks, this) + .off('blur', this._removeHooks, this); }, _onMouseDown: function () { - if (!this._focused) { - this._map._container.focus(); - } + if (this._focused) { return; } + + var body = document.body, + docEl = document.documentElement, + top = body.scrollTop || docEl.scrollTop, + left = body.scrollTop || docEl.scrollLeft; + + this._map._container.focus(); + + window.scrollTo(left, top); }, _onFocus: function () { @@ -6249,7 +7545,7 @@ L.Map.Keyboard = L.Handler.extend({ _setZoomOffset: function (zoom) { var keys = this._zoomKeys = {}, - codes = this.keyCodes, + codes = this.keyCodes, i, len; for (i = 0, len = codes.zoomIn.length; i < len; i++) { @@ -6261,21 +7557,29 @@ L.Map.Keyboard = L.Handler.extend({ }, _addHooks: function () { - L.DomEvent.addListener(document, 'keydown', this._onKeyDown, this); + L.DomEvent.on(document, 'keydown', this._onKeyDown, this); }, _removeHooks: function () { - L.DomEvent.removeListener(document, 'keydown', this._onKeyDown, this); + L.DomEvent.off(document, 'keydown', this._onKeyDown, this); }, _onKeyDown: function (e) { - var key = e.keyCode; + 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 (this._panKeys.hasOwnProperty(key)) { - this._map.panBy(this._panKeys[key]); + if (map.options.maxBounds) { + map.panInsideBounds(map.options.maxBounds); + } - } else if (this._zoomKeys.hasOwnProperty(key)) { - this._map.setZoom(this._map.getZoom() + this._zoomKeys[key]); + } else if (key in this._zoomKeys) { + map.setZoom(map.getZoom() + this._zoomKeys[key]); } else { return; @@ -6300,15 +7604,22 @@ L.Handler.MarkerDrag = L.Handler.extend({ addHooks: function () { var icon = this._marker._icon; if (!this._draggable) { - this._draggable = new L.Draggable(icon, icon) - .on('dragstart', this._onDragStart, this) - .on('drag', this._onDrag, this) - .on('dragend', this._onDragEnd, this); + 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(); }, removeHooks: function () { + this._draggable + .off('dragstart', this._onDragStart, this) + .off('drag', this._onDrag, this) + .off('dragend', this._onDragEnd, this); + this._draggable.disable(); }, @@ -6316,18 +7627,18 @@ L.Handler.MarkerDrag = L.Handler.extend({ return this._draggable && this._draggable._moved; }, - _onDragStart: function (e) { + _onDragStart: function () { this._marker - .closePopup() - .fire('movestart') - .fire('dragstart'); + .closePopup() + .fire('movestart') + .fire('dragstart'); }, - _onDrag: function (e) { + _onDrag: function () { var marker = this._marker, - shadow = marker._shadow, - iconPos = L.DomUtil.getPosition(marker._icon), - latlng = marker._map.layerPointToLatLng(iconPos); + shadow = marker._shadow, + iconPos = L.DomUtil.getPosition(marker._icon), + latlng = marker._map.layerPointToLatLng(iconPos); // update shadow position if (shadow) { @@ -6337,506 +7648,339 @@ L.Handler.MarkerDrag = L.Handler.extend({ marker._latlng = latlng; marker - .fire('move', { latlng: latlng }) - .fire('drag'); + .fire('move', {latlng: latlng}) + .fire('drag'); }, _onDragEnd: function () { this._marker - .fire('moveend') - .fire('dragend'); + .fire('moveend') + .fire('dragend'); } }); -L.Handler.PolyEdit = L.Handler.extend({ +/* + * 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: { - icon: new L.DivIcon({ - iconSize: new L.Point(8, 8), - className: 'leaflet-div-icon leaflet-editing-icon' - }) + position: 'topright' }, - initialize: function (poly, options) { - this._poly = poly; - L.Util.setOptions(this, options); + initialize: function (options) { + L.setOptions(this, options); }, - addHooks: function () { - if (this._poly._map) { - if (!this._markerGroup) { - this._initMarkers(); - } - this._poly._map.addLayer(this._markerGroup); - } + getPosition: function () { + return this.options.position; }, - removeHooks: function () { - if (this._poly._map) { - this._poly._map.removeLayer(this._markerGroup); - delete this._markerGroup; - delete this._markers; + setPosition: function (position) { + var map = this._map; + + if (map) { + map.removeControl(this); + } + + this.options.position = position; + + if (map) { + map.addControl(this); } + + return this; }, - updateMarkers: function () { - this._markerGroup.clearLayers(); - this._initMarkers(); + getContainer: function () { + return this._container; }, - _initMarkers: function () { - if (!this._markerGroup) { - this._markerGroup = new L.LayerGroup(); + 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); } - this._markers = []; - var latlngs = this._poly._latlngs, - i, j, len, marker; + return this; + }, - // TODO refactor holes implementation in Polygon to support it here + removeFrom: function (map) { + var pos = this.getPosition(), + corner = map._controlCorners[pos]; - for (i = 0, len = latlngs.length; i < len; i++) { + corner.removeChild(this._container); + this._map = null; - marker = this._createMarker(latlngs[i], i); - marker.on('click', this._onMarkerClick, this); - this._markers.push(marker); + if (this.onRemove) { + this.onRemove(map); } - var markerLeft, markerRight; + return this; + } +}); + +L.control = function (options) { + return new L.Control(options); +}; - for (i = 0, j = len - 1; i < len; j = i++) { - if (i === 0 && !(L.Polygon && (this._poly instanceof L.Polygon))) { - continue; - } - markerLeft = this._markers[j]; - markerRight = this._markers[i]; +// adds control-related methods to L.Map - this._createMiddleMarker(markerLeft, markerRight); - this._updatePrevNext(markerLeft, markerRight); - } +L.Map.include({ + addControl: function (control) { + control.addTo(this); + return this; }, - _createMarker: function (latlng, index) { - var marker = new L.Marker(latlng, { - draggable: true, - icon: this.options.icon - }); + removeControl: function (control) { + control.removeFrom(this); + return this; + }, - marker._origLatLng = latlng; - marker._index = index; + _initControlPos: function () { + var corners = this._controlCorners = {}, + l = 'leaflet-', + container = this._controlContainer = + L.DomUtil.create('div', l + 'control-container', this._container); - marker.on('drag', this._onMarkerDrag, this); - marker.on('dragend', this._fireEdit, this); + function createCorner(vSide, hSide) { + var className = l + vSide + ' ' + l + hSide; - this._markerGroup.addLayer(marker); + corners[vSide + hSide] = L.DomUtil.create('div', className, container); + } - return marker; + createCorner('top', 'left'); + createCorner('top', 'right'); + createCorner('bottom', 'left'); + createCorner('bottom', 'right'); }, - _fireEdit: function () { - this._poly.fire('edit'); + _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' }, - _onMarkerDrag: function (e) { - var marker = e.target; + onAdd: function (map) { + var zoomName = 'leaflet-control-zoom', + container = L.DomUtil.create('div', zoomName + ' leaflet-bar'); + + this._map = map; - L.Util.extend(marker._origLatLng, marker._latlng); + this._zoomInButton = this._createButton( + '+', 'Zoom in', zoomName + '-in', container, this._zoomIn, this); + this._zoomOutButton = this._createButton( + '-', 'Zoom out', zoomName + '-out', container, this._zoomOut, this); - if (marker._middleLeft) { - marker._middleLeft.setLatLng(this._getMiddleLatLng(marker._prev, marker)); - } - if (marker._middleRight) { - marker._middleRight.setLatLng(this._getMiddleLatLng(marker, marker._next)); - } + map.on('zoomend zoomlevelschange', this._updateDisabled, this); - this._poly.redraw(); + return container; }, - _onMarkerClick: function (e) { - // Default action on marker click is to remove that marker, but if we remove the marker when latlng count < 3, we don't have a valid polyline anymore - if (this._poly._latlngs.length < 3) { - return; - } + onRemove: function (map) { + map.off('zoomend zoomlevelschange', this._updateDisabled, this); + }, - var marker = e.target, - i = marker._index; + _zoomIn: function (e) { + this._map.zoomIn(e.shiftKey ? 3 : 1); + }, - // Check existence of previous and next markers since they wouldn't exist for edge points on the polyline - if (marker._prev && marker._next) { - this._createMiddleMarker(marker._prev, marker._next); - } else if (!marker._prev) { - marker._next._middleLeft = null; - } else if (!marker._next) { - marker._prev._middleRight = null; - } - this._updatePrevNext(marker._prev, marker._next); + _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); + + return link; + }, + + _updateDisabled: function () { + var map = this._map, + className = 'leaflet-disabled'; - // The marker itself is guaranteed to exist and present in the layer, since we managed to click on it - this._markerGroup.removeLayer(marker); - // Check for the existence of middle left or middle right - if (marker._middleLeft) { - this._markerGroup.removeLayer(marker._middleLeft); + L.DomUtil.removeClass(this._zoomInButton, className); + L.DomUtil.removeClass(this._zoomOutButton, className); + + if (map._zoom === map.getMinZoom()) { + L.DomUtil.addClass(this._zoomOutButton, className); } - if (marker._middleRight) { - this._markerGroup.removeLayer(marker._middleRight); + if (map._zoom === map.getMaxZoom()) { + L.DomUtil.addClass(this._zoomInButton, className); } - this._markers.splice(i, 1); - this._poly.spliceLatLngs(i, 1); - this._updateIndexes(i, -1); - this._poly.fire('edit'); - }, + } +}); - _updateIndexes: function (index, delta) { - this._markerGroup.eachLayer(function (marker) { - if (marker._index > index) { - marker._index += delta; - } - }); - }, +L.Map.mergeOptions({ + zoomControl: true +}); - _createMiddleMarker: function (marker1, marker2) { - var latlng = this._getMiddleLatLng(marker1, marker2), - marker = this._createMarker(latlng), - onClick, - onDragStart, - onDragEnd; +L.Map.addInitHook(function () { + if (this.options.zoomControl) { + this.zoomControl = new L.Control.Zoom(); + this.addControl(this.zoomControl); + } +}); - marker.setOpacity(0.6); +L.control.zoom = function (options) { + return new L.Control.Zoom(options); +}; - marker1._middleRight = marker2._middleLeft = marker; - onDragStart = function () { - var i = marker2._index; - marker._index = i; +/* + * L.Control.Attribution is used for displaying attribution on the map (added by default). + */ - marker - .off('click', onClick) - .on('click', this._onMarkerClick, this); +L.Control.Attribution = L.Control.extend({ + options: { + position: 'bottomright', + prefix: 'Leaflet' + }, - latlng.lat = marker.getLatLng().lat; - latlng.lng = marker.getLatLng().lng; - this._poly.spliceLatLngs(i, 0, latlng); - this._markers.splice(i, 0, marker); + initialize: function (options) { + L.setOptions(this, options); - marker.setOpacity(1); + this._attributions = {}; + }, - this._updateIndexes(i, 1); - marker2._index++; - this._updatePrevNext(marker1, marker); - this._updatePrevNext(marker, marker2); - }; + onAdd: function (map) { + this._container = L.DomUtil.create('div', 'leaflet-control-attribution'); + L.DomEvent.disableClickPropagation(this._container); - onDragEnd = function () { - marker.off('dragstart', onDragStart, this); - marker.off('dragend', onDragEnd, this); + map + .on('layeradd', this._onLayerAdd, this) + .on('layerremove', this._onLayerRemove, this); - this._createMiddleMarker(marker1, marker); - this._createMiddleMarker(marker, marker2); - }; + this._update(); - onClick = function () { - onDragStart.call(this); - onDragEnd.call(this); - this._poly.fire('edit'); - }; + return this._container; + }, - marker - .on('click', onClick, this) - .on('dragstart', onDragStart, this) - .on('dragend', onDragEnd, this); + onRemove: function (map) { + map + .off('layeradd', this._onLayerAdd) + .off('layerremove', this._onLayerRemove); - this._markerGroup.addLayer(marker); }, - _updatePrevNext: function (marker1, marker2) { - if (marker1) { - marker1._next = marker2; - } - if (marker2) { - marker2._prev = marker1; - } + setPrefix: function (prefix) { + this.options.prefix = prefix; + this._update(); + return this; }, - _getMiddleLatLng: function (marker1, marker2) { - var map = this._poly._map, - p1 = map.latLngToLayerPoint(marker1.getLatLng()), - p2 = map.latLngToLayerPoint(marker2.getLatLng()); + addAttribution: function (text) { + if (!text) { return; } - return map.layerPointToLatLng(p1._add(p2)._divideBy(2)); - } -}); + if (!this._attributions[text]) { + this._attributions[text] = 0; + } + this._attributions[text]++; + this._update(); - -L.Control = L.Class.extend({ - options: { - position: 'topright' - }, - - initialize: function (options) { - L.Util.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; - }, - - 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; - } -}); - -L.control = function (options) { - return new L.Control(options); -}; + return this; + }, + removeAttribution: function (text) { + if (!text) { return; } + + if (this._attributions[text]) { + this._attributions[text]--; + this._update(); + } -L.Map.include({ - addControl: function (control) { - control.addTo(this); return this; }, - removeControl: function (control) { - control.removeFrom(this); - 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(' | '); }, - _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; + _onLayerAdd: function (e) { + if (e.layer.getAttribution) { + this.addAttribution(e.layer.getAttribution()); + } + }, - corners[vSide + hSide] = - L.DomUtil.create('div', className, container); + _onLayerRemove: function (e) { + if (e.layer.getAttribution) { + this.removeAttribution(e.layer.getAttribution()); } + } +}); - createCorner('top', 'left'); - createCorner('top', 'right'); - createCorner('bottom', 'left'); - createCorner('bottom', 'right'); +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.Zoom = L.Control.extend({ - options: { - position: 'topleft' - }, - - onAdd: function (map) { - var className = 'leaflet-control-zoom', - container = L.DomUtil.create('div', className); - - this._map = map; - - this._createButton('Zoom in', className + '-in', container, this._zoomIn, this); - this._createButton('Zoom out', className + '-out', container, this._zoomOut, this); - - return container; - }, - - _zoomIn: function (e) { - this._map.zoomIn(e.shiftKey ? 3 : 1); - }, - - _zoomOut: function (e) { - this._map.zoomOut(e.shiftKey ? 3 : 1); - }, - - _createButton: function (title, className, container, fn, context) { - var link = L.DomUtil.create('a', className, container); - link.href = '#'; - link.title = title; - - L.DomEvent - .on(link, 'click', L.DomEvent.stopPropagation) - .on(link, 'mousedown', L.DomEvent.stopPropagation) - .on(link, 'dblclick', L.DomEvent.stopPropagation) - .on(link, 'click', L.DomEvent.preventDefault) - .on(link, 'click', fn, context); - - return link; - } -}); - -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 = L.Control.extend({ - options: { - position: 'bottomright', - prefix: 'Powered by Leaflet' - }, - - initialize: function (options) { - L.Util.setOptions(this, options); - - this._attributions = {}; - }, - - onAdd: function (map) { - this._container = L.DomUtil.create('div', 'leaflet-control-attribution'); - L.DomEvent.disableClickPropagation(this._container); - - 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; } - - this._attributions[text]--; - this._update(); - - return this; - }, - - _update: function () { - if (!this._map) { return; } - - var attribs = []; - - for (var i in this._attributions) { - if (this._attributions.hasOwnProperty(i) && 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: { @@ -6911,8 +8055,8 @@ L.Control.Scale = L.Control.extend({ _updateImperial: function (maxMeters) { var maxFeet = maxMeters * 3.2808399, - scale = this._iScale, - maxMiles, miles, feet; + scale = this._iScale, + maxMiles, miles, feet; if (maxFeet > 5280) { maxMiles = maxFeet / 5280; @@ -6948,219 +8092,251 @@ L.control.scale = function (options) { }; - -L.Control.Layers = L.Control.extend({ - options: { - collapsed: true, - position: 'topright', - autoZIndex: true - }, - - initialize: function (baseLayers, overlays, options) { - L.Util.setOptions(this, options); - - this._layers = {}; - this._lastZIndex = 0; - - for (var i in baseLayers) { - if (baseLayers.hasOwnProperty(i)) { - this._addLayer(baseLayers[i], i); - } - } - - for (i in overlays) { - if (overlays.hasOwnProperty(i)) { - this._addLayer(overlays[i], i, true); - } - } - }, - - onAdd: function (map) { - this._initLayout(); - this._update(); - - return this._container; - }, - - 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.Util.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); - - if (!L.Browser.touch) { - L.DomEvent.disableClickPropagation(container); - } else { - L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation); - } - - var form = this._form = L.DomUtil.create('form', className + '-list'); - - if (this.options.collapsed) { - 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.stopPropagation) - .on(link, 'click', L.DomEvent.preventDefault) - .on(link, 'click', this._expand, this); - } - else { - L.DomEvent.on(link, 'focus', this._expand, this); - } - - this._map.on('movestart', 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.Util.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; - - for (var i in this._layers) { - if (this._layers.hasOwnProperty(i)) { - var obj = this._layers[i]; - this._addItem(obj); - overlaysPresent = overlaysPresent || obj.overlay; - baseLayersPresent = baseLayersPresent || !obj.overlay; - } - } - - this._separator.style.display = (overlaysPresent && baseLayersPresent ? '' : 'none'); - }, - - // 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 = ' this.options.zoomAnimationThreshold) { return false; } - // if offset does not exceed half of the view - if (!this._offsetIsWithinView(offset, 1)) { 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); - L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim'); + // 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.fire('zoomanim', { - center: center, - zoom: zoom - }); - - var origin = this._getCenterLayerPoint().add(offset); + .fire('movestart') + .fire('zoomstart'); - this._prepareTileBg(); - this._runAnimation(center, zoom, scale, origin); + this._animateZoom(center, zoom, origin, scale, null, true); return true; }, - _catchTransitionEnd: function (e) { - if (this._animatingZoom) { - this._onZoomTransitionEnd(); - } - }, + _animateZoom: function (center, zoom, origin, scale, delta, backwards) { - _runAnimation: function (center, zoom, scale, origin, backwardsTransform) { + 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; - this._animatingZoom = true; + // disable any dragging during animation if (L.Draggable) { L.Draggable._disabled = true; } - var transform = L.DomUtil.TRANSFORM, - tileBg = this._tileBg; + this.fire('zoomanim', { + center: center, + zoom: zoom, + origin: origin, + scale: scale, + delta: delta, + backwards: backwards + }); + }, + + _onZoomTransitionEnd: function () { - clearTimeout(this._clearTileBgTimer); + this._animatingZoom = false; - L.Util.falseFn(tileBg.offsetWidth); //hack to make sure transform is updated before running animation + L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim'); - var scaleStr = L.DomUtil.getScaleString(scale, origin), - oldTransform = tileBg.style[transform]; + this._resetView(this._animateToCenter, this._animateToZoom, true, true); - tileBg.style[transform] = backwardsTransform ? - oldTransform + ' ' + scaleStr : - scaleStr + ' ' + oldTransform; - }, + if (L.Draggable) { + L.Draggable._disabled = false; + } + } +}); - _prepareTileBg: function () { - var tilePane = this._tilePane, - tileBg = this._tileBg; - // If foreground layer doesn't have many tiles but bg layer does, keep the existing bg layer and just zoom it some more - if (tileBg && - this._getLoadedTilesPercentage(tileBg) > 0.5 && - this._getLoadedTilesPercentage(tilePane) < 0.5) { +/* + Zoom animation logic for L.TileLayer. +*/ - tilePane.style.visibility = 'hidden'; - tilePane.empty = true; - this._stopLoadingImages(tilePane); - return; +L.TileLayer.include({ + _animateZoom: function (e) { + if (!this._animating) { + this._animating = true; + this._prepareBgBuffer(); } - if (!tileBg) { - tileBg = this._tileBg = this._createPane('leaflet-tile-pane', this._mapPane); - tileBg.style.zIndex = 1; + 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); + + 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; - // prepare the background pane to become the main tile pane - tileBg.style[L.DomUtil.TRANSFORM] = ''; - tileBg.style.visibility = 'hidden'; + // 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; + } - // tells tile layers to reinitialize their containers - tileBg.empty = true; //new FG - tilePane.empty = false; //new BG + // 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._tilePane = this._panes.tilePane = tileBg; - var newTileBg = this._tileBg = tilePane; + // switch out the current layer to be the new bg layer (and vice-versa) + this._tileContainer = bg; + bg = this._bgBuffer = front; - L.DomUtil.addClass(newTileBg, 'leaflet-zoom-animated'); + this._stopLoadingImages(bg); - this._stopLoadingImages(newTileBg); + //prevent bg buffer from clearing right after zoom + clearTimeout(this._clearBgBufferTimer); }, _getLoadedTilesPercentage: function (container) { var tiles = container.getElementsByTagName('img'), - i, len, count = 0; + i, len, count = 0; for (i = 0, len = tiles.length; i < len; i++) { if (tiles[i].complete) { @@ -7522,7 +8798,7 @@ L.Map.include(!L.DomUtil.TRANSITION ? {} : { // stops loading all tiles in the background layer _stopLoadingImages: function (container) { var tiles = Array.prototype.slice.call(container.getElementsByTagName('img')), - i, len, tile; + i, len, tile; for (i = 0, len = tiles.length; i < len; i++) { tile = tiles[i]; @@ -7535,124 +8811,107 @@ L.Map.include(!L.DomUtil.TRANSITION ? {} : { 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 }, - _onZoomTransitionEnd: function () { - this._restoreTileFront(); - L.Util.falseFn(this._tileBg.offsetWidth); // force reflow - this._resetView(this._animateToCenter, this._animateToZoom, true, true); + locate: function (/*Object*/ options) { - L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim'); - this._animatingZoom = false; + options = this._locateOptions = L.extend(this._defaultLocateOptions, options); - if (L.Draggable) { - L.Draggable._disabled = false; + 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; }, - _restoreTileFront: function () { - this._tilePane.innerHTML = ''; - this._tilePane.style.visibility = ''; - this._tilePane.style.zIndex = 2; - this._tileBg.style.zIndex = 1; + _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 + '.' + }); }, - _clearTileBg: function () { - if (!this._animatingZoom && !this.touchZoom._zooming) { - this._tileBg.innerHTML = ''; + _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 + }; + + for (var i in pos.coords) { + if (typeof pos.coords[i] === 'number') { + data[i] = pos.coords[i]; + } } + + this.fire('locationfound', data); } }); -/* - * Provides L.Map with convenient shortcuts for W3C geolocation. - */ - -L.Map.include({ - _defaultLocateOptions: { - watch: false, - setView: false, - maxZoom: Infinity, - timeout: 10000, - maximumAge: 0, - enableHighAccuracy: false - }, - - locate: function (/*Object*/ options) { - - options = this._locationOptions = L.Util.extend(this._defaultLocateOptions, options); - - if (!navigator.geolocation) { - this._handleGeolocationError({ - code: 0, - message: "Geolocation not supported." - }); - return this; - } - - var onResponse = L.Util.bind(this._handleGeolocationResponse, this), - onError = L.Util.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); - } - return this; - }, - - _handleGeolocationError: function (error) { - var c = error.code, - message = error.message || - (c === 1 ? "permission denied" : - (c === 2 ? "position unavailable" : "timeout")); - - if (this._locationOptions.setView && !this._loaded) { - this.fitWorld(); - } - - this.fire('locationerror', { - code: c, - message: "Geolocation error: " + message + "." - }); - }, - - _handleGeolocationResponse: function (pos) { - var latAccuracy = 180 * pos.coords.accuracy / 4e7, - lngAccuracy = latAccuracy * 2, - - lat = pos.coords.latitude, - lng = pos.coords.longitude, - latlng = new L.LatLng(lat, lng), - - sw = new L.LatLng(lat - latAccuracy, lng - lngAccuracy), - ne = new L.LatLng(lat + latAccuracy, lng + lngAccuracy), - bounds = new L.LatLngBounds(sw, ne), - - options = this._locationOptions; - - if (options.setView) { - var zoom = Math.min(this.getBoundsZoom(bounds), options.maxZoom); - this.setView(latlng, zoom); - } - - this.fire('locationfound', { - latlng: latlng, - bounds: bounds, - accuracy: pos.coords.accuracy - }); - } -}); - - - - -}(this)); \ No newline at end of file +}(window, document)); \ No newline at end of file