From 383d961cf7df2914addd1ed2d3069d86ec701d1f Mon Sep 17 00:00:00 2001 From: danzel Date: Wed, 11 Jul 2012 14:13:46 +1200 Subject: [PATCH] Add initial code from https://github.com/danzel/Leaflet/compare/clustered-markers --- README.md | 26 +- example/marker-clustering.html | 115 + example/screen.css | 5 + lib/leaflet-dist/images/layers.png | Bin 0 -> 3945 bytes lib/leaflet-dist/images/marker-icon.png | Bin 0 -> 2519 bytes lib/leaflet-dist/images/marker-shadow.png | Bin 0 -> 1649 bytes lib/leaflet-dist/images/popup-close.png | Bin 0 -> 1125 bytes lib/leaflet-dist/images/zoom-in.png | Bin 0 -> 963 bytes lib/leaflet-dist/images/zoom-out.png | Bin 0 -> 959 bytes lib/leaflet-dist/leaflet-src.js | 7102 +++++++++++++++++++++ lib/leaflet-dist/leaflet.css | 368 ++ lib/leaflet-dist/leaflet.ie.css | 44 + lib/leaflet-dist/leaflet.js | 6 + src/MarkerCluster.css | 6 + src/MarkerCluster.js | 184 + src/MarkerClusterGroup.js | 385 ++ 16 files changed, 8240 insertions(+), 1 deletion(-) create mode 100644 example/marker-clustering.html create mode 100644 example/screen.css create mode 100644 lib/leaflet-dist/images/layers.png create mode 100644 lib/leaflet-dist/images/marker-icon.png create mode 100644 lib/leaflet-dist/images/marker-shadow.png create mode 100644 lib/leaflet-dist/images/popup-close.png create mode 100644 lib/leaflet-dist/images/zoom-in.png create mode 100644 lib/leaflet-dist/images/zoom-out.png create mode 100644 lib/leaflet-dist/leaflet-src.js create mode 100644 lib/leaflet-dist/leaflet.css create mode 100644 lib/leaflet-dist/leaflet.ie.css create mode 100644 lib/leaflet-dist/leaflet.js create mode 100644 src/MarkerCluster.css create mode 100644 src/MarkerCluster.js create mode 100644 src/MarkerClusterGroup.js diff --git a/README.md b/README.md index 8f8294f51d..58a5aca23a 100644 --- a/README.md +++ b/README.md @@ -1,4 +1,28 @@ Leaflet.markercluster ===================== -Provides Marker Clustering functionality for Leaflet \ No newline at end of file +Provides Marker Clustering functionality for Leaflet + +##Using the plugin +See the included example for usage. + +Create a new MarkerClusterGroup, add your markers to it, then add it to the map +```` +var markers = new L.MarkerClusterGroup(); +markers.addLayer(new L.Marker(getRandomLatLng(map))); +map.addLayer(markers); +```` + +For a more complete example see example/marker-clustering.html + +###Customising the Clustered Marker +As an option to MarkerClusterGroup you can provide your own function for creating the Icon for the clustered markers. +The default implementation changes color at bounds of 10 and 100, but more advanced uses may require customising this. + +```` +var markers = new L.MarkerClusterGroup({ options: { + iconCreateFunction: function(childCount) { + return new L.DivIcon({ html: '' + childCount + '' }); + } +}}); +```` \ No newline at end of file diff --git a/example/marker-clustering.html b/example/marker-clustering.html new file mode 100644 index 0000000000..67ec88013d --- /dev/null +++ b/example/marker-clustering.html @@ -0,0 +1,115 @@ + + + + Leaflet debug page + + + + + + + + + + + + + + + +
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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]; + }; + }()), + + + // TODO refactor: remove repetition + + requestAnimFrame: (function () { + function timeoutDefer(callback) { + window.setTimeout(callback, 1000 / 60); + } + + var requestFn = window.requestAnimationFrame || + window.webkitRequestAnimationFrame || + window.mozRequestAnimationFrame || + window.oRequestAnimationFrame || + window.msRequestAnimationFrame || + timeoutDefer; + + return function (callback, context, immediate, contextEl) { + callback = context ? L.Util.bind(callback, context) : callback; + if (immediate && requestFn === timeoutDefer) { + callback(); + } else { + return requestFn.call(window, callback, contextEl); + } + }; + }()), + + cancelAnimFrame: (function () { + var requestFn = window.cancelAnimationFrame || + window.webkitCancelRequestAnimationFrame || + window.mozCancelRequestAnimationFrame || + window.oCancelRequestAnimationFrame || + window.msCancelRequestAnimationFrame || + clearTimeout; + + return function (handle) { + if (!handle) { return; } + return requestFn.call(window, handle); + }; + }()), + + 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=' +}; + + +/* + * 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); +}; + +/* + * 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, + 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; + }()); + + L.Browser = { + ie: ie, + ie6: ie6, + webkit: webkit, + gecko: gecko, + opera: opera, + android: android, + android23: android23, + + 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 + }; +}()); + + +/* + * 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 = { + add: function (point) { + return this.clone()._add(L.point(point)); + }, + + _add: function (point) { + this.x += point.x; + this.y += point.y; + return this; + }, + + subtract: function (point) { + return this.clone()._subtract(L.point(point)); + }, + + // destructive subtract (faster) + _subtract: function (point) { + this.x -= point.x; + this.y -= point.y; + return this; + }, + + divideBy: function (num, round) { + return new L.Point(this.x / num, this.y / num, round); + }, + + multiplyBy: function (num, round) { + return new L.Point(this.x * num, this.y * num, round); + }, + + 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); + }, + + round: function () { + return this.clone()._round(); + }, + + // destructive round + _round: function () { + this.x = Math.round(this.x); + this.y = Math.round(this.y); + return this; + }, + + clone: function () { + return new L.Point(this.x, 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 (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; + } + +}); + +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; + + do { + top += el.offsetTop || 0; + left += el.offsetLeft || 0; + + if (el.offsetParent === docBody && + L.DomUtil.getStyle(el, 'position') === 'absolute') { + break; + } + if (L.DomUtil.getStyle(el, 'position') === '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 () { + 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 (L.Browser.ie) { + el.style.filter += value !== 1 ? 'alpha(opacity=' + Math.round(value * 100) + ')' : ''; + } else { + el.style.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/MobileSafari/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), + scaleStr = ' scale(' + scale + ') ', + postTranslateStr = L.DomUtil.getTranslateString(origin.multiplyBy(-1)); + + return preTranslateStr + scaleStr + postTranslateStr; + }, + + setPosition: function (el, point, disable3D) { + 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) { + return el._leaflet_pos; + } +}; + +L.Util.extend(L.DomUtil, { + TRANSITION: L.DomUtil.testProp(['transition', 'webkitTransition', 'OTransition', 'MozTransition', 'msTransition']), + TRANSFORM: L.DomUtil.testProp(['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']) +}); + + +/* + 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()); + } +}); + +//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 () { + return this.setZoom(this._zoom + 1); + }, + + zoomOut: function () { + return this.setZoom(this._zoom - 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, insertAtTheBottom) { + // 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); + } + + var onMapLoad = function () { + layer.onAdd(this, insertAtTheBottom); + this.fire('layeradd', {layer: layer}); + }; + + if (this._loaded) { + onMapLoad.call(this); + } else { + this.on('load', onMapLoad, 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 () { + 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, true); + 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; + }, + + 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; + + this.fire('viewreset', {hard: !preserveMapOffset}); + + this.fire('move'); + + if (zoomChanged || afterZoomAnim) { + this.fire('zoomend'); + } + + this.fire('moveend'); + + if (!this._loaded) { + this._loaded = true; + 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', 'mouseenter', 'mouseleave', 'mousemove', 'contextmenu']; + + var 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 () { + // TODO cancel previous frame + 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); + } + }, + + + // 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)._round(); + }, + + _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: '', + opacity: 1, + scheme: 'xyz', + continuousWorld: false, + noWrap: false, + zoomOffset: 0, + zoomReverse: false, + detectRetina: false, + + unloadInvisibleTiles: L.Browser.mobile, + updateWhenIdle: L.Browser.mobile, + reuseTiles: false + }, + + initialize: function (url, options) { + options = L.Util.setOptions(this, options); + + // detecting retina displays, adjusting tileSize and zoom levels + if (options.detectRetina && window.devicePixelRatio > 1 && 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, insertAtTheBottom) { + this._map = map; + this._insertAtTheBottom = insertAtTheBottom; + + // 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 () { + if (this._container) { + this._map._panes.tilePane.appendChild(this._container); + } + }, + + bringToBack: function () { + var pane = this._map._panes.tilePane; + if (this._container) { + pane.insertBefore(this._container, pane.firstChild); + } + }, + + getAttribution: function () { + return this.options.attribution; + }, + + setOpacity: function (opacity) { + this.options.opacity = opacity; + + if (this._map) { + this._updateOpacity(); + } + }, + + _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, + first = tilePane.firstChild; + + if (!this._container || tilePane.empty) { + this._container = L.DomUtil.create('div', 'leaflet-layer'); + + if (this._insertAtTheBottom && first) { + tilePane.insertBefore(this._container, first); + } else { + 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 = {}; + + if (this.options.reuseTiles) { + this._unusedTiles = []; + } + + if (clearOldContainer && this._container) { + this._container.innerHTML = ""; + } + + this._initContainer(); + }, + + _update: function (e) { + if (this._map._panTransition && this._map._panTransition._inProgress) { 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; + for (j = bounds.min.y; j <= bounds.max.y; j++) { + for (i = bounds.min.x; i <= bounds.max.x; i++) { + if (!((i + ':' + j) in this._tiles)) { + queue.push(new L.Point(i, j)); + } + } + } + + if (queue.length === 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(); + + this._tilesToLoad = queue.length; + + var k, len; + for (k = 0, len = this._tilesToLoad; k < len; k++) { + this._addTile(queue[k], fragment); + } + + this._container.appendChild(fragment); + }, + + _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); + } + + tile.src = L.Util.emptyImageUrl; + + delete this._tiles[key]; + }, + + _addTile: function (tilePoint, container) { + var tilePos = this._getTilePos(tilePoint), + zoom = this._map.getZoom(), + key = tilePoint.x + ':' + tilePoint.y, + limit = Math.pow(2, this._getOffsetZoom(zoom)); + + // wrap tile coordinates + if (!this.options.continuousWorld) { + if (!this.options.noWrap) { + tilePoint.x = ((tilePoint.x % limit) + limit) % limit; + } else if (tilePoint.x < 0 || tilePoint.x >= limit) { + this._tilesToLoad--; + return; + } + + if (tilePoint.y < 0 || tilePoint.y >= limit) { + this._tilesToLoad--; + return; + } + } + + // get unused tile - or create a new tile + var tile = this._getTile(); + L.DomUtil.setPosition(tile, tilePos, true); + + this._tiles[key] = tile; + + if (this.options.scheme === 'tms') { + tilePoint.y = limit - tilePoint.y - 1; + } + + this._loadTile(tile, tilePoint, zoom); + + if (tile.parentNode !== this._container) { + container.appendChild(tile); + } + }, + + _getOffsetZoom: function (zoom) { + var options = this.options; + zoom = options.zoomReverse ? options.maxZoom - zoom : 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, zoom) { + var subdomains = this.options.subdomains, + index = (tilePoint.x + tilePoint.y) % subdomains.length, + s = this.options.subdomains[index]; + + return L.Util.template(this._url, L.Util.extend({ + s: s, + z: this._getOffsetZoom(zoom), + x: tilePoint.x, + y: tilePoint.y + }, this.options)); + }, + + _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, zoom) { + tile._layer = this; + tile.onload = this._tileOnLoad; + tile.onerror = this._tileOnError; + + tile.src = this.getTileUrl(tilePoint, zoom); + }, + + _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); + 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, insertAtTheBottom) { + var projectionKey = parseFloat(this.wmsParams.version) >= 1.3 ? 'crs' : 'srs'; + this.wmsParams[projectionKey] = map.options.crs.code; + + L.TileLayer.prototype.onAdd.call(this, map, insertAtTheBottom); + }, + + 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)), + + nwMap = map.unproject(nwPoint, zoom), + seMap = map.unproject(sePoint, zoom), + + nw = crs.project(nwMap), + se = crs.project(seMap), + + bbox = [nw.x, se.y, se.x, nw.y].join(','); + + return this._url + L.Util.getParamString(this.wmsParams) + "&bbox=" + bbox; + } +}); + +L.tileLayer.wms = function (url, options) { + return new L.TileLayer(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(); + }, + + _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) + */ + 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 = L.point(options.iconAnchor), + offset = L.point(options.shadowOffset); + + if (!anchor && size) { + anchor = size.divideBy(2, true); + } + + if (name === 'shadow' && anchor && offset) { + anchor = anchor.add(offset); + } + + 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); +}; + + +// TODO move to a separate file + +L.Icon.Default = L.Icon.extend({ + options: { + iconSize: new L.Point(25, 41), + iconAnchor: new L.Point(13, 41), + popupAnchor: new L.Point(0, -33), + + shadowSize: new L.Point(41, 41) + }, + + _getIconUrl: function (name) { + var key = name + 'Url'; + + if (this.options[key]) { + return this.options[key]; + } + + 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; + + for (i = 0, len = scripts.length; i < len; i++) { + src = scripts[i].src; + matches = src.match(leafletRe); + + if (matches) { + return src.split(leafletRe)[0] + '/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, + 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); + L.DomUtil.addClass(this._icon, 'leaflet-zoom-animated'); + if (this._shadow) { + L.DomUtil.addClass(this._shadow, 'leaflet-zoom-animated'); + } + } else { + L.DomUtil.addClass(this._icon, 'leaflet-zoom-hide'); + if (this._shadow) { + L.DomUtil.addClass(this._shadow, 'leaflet-zoom-hide'); + } + } + }, + + addTo: function (map) { + map.addLayer(this); + return this; + }, + + onRemove: function (map) { + this._removeIcon(); + + // TODO move to Marker.Popup.js + if (this.closePopup) { + this.closePopup(); + } + + 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(); + + if (this._popup) { + this._popup.setLatLng(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; + + if (!this._icon) { + this._icon = options.icon.createIcon(); + + if (options.title) { + this._icon.title = options.title; + } + + this._initInteraction(); + this._updateOpacity(); + } + if (!this._shadow) { + this._shadow = options.icon.createShadow(); + } + + 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) { + 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 (opacity) { + L.DomUtil.setOpacity(this._icon, this.options.opacity); + } +}); + +L.marker = function (latlng, options) { + return new L.Marker(latlng, options); +}; + + +L.DivIcon = L.Icon.extend({ + options: { + iconSize: new L.Point(12, 12), // also can be set through CSS + /* + iconAnchor: (Point) + popupAnchor: (Point) + innerHTML: (String) + */ + className: 'leaflet-div-icon' + }, + + createIcon: function () { + var div = document.createElement('div'); + if (this.options.html) { + div.innerHTML = this.options.html; + } + this._setIconStyles(div, 'icon'); + return div; + }, + + createShadow: function () { + return null; + } +}); + +L.divIcon = function (options) { + return new L.DivIcon(options); +}; + + + +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, 2), + 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(); + + this._container.style.opacity = '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(); + + this._container.style.opacity = '1'; //TODO fix ugly opacity hack + }, + + addTo: function (map) { + map.addLayer(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); + + this._container.style.opacity = '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'; + + 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)._round(); + + 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 = this.options.icon.options.popupAnchor || new L.Point(0, 0); + + 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); + } + + this._popup = new L.Popup(options, this) + .setContent(content); + + return this; + }, + + unbindPopup: function () { + if (this._popup) { + this._popup = null; + this.off('click', this.openPopup); + } + return this; + } +}); + + + +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.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._iterateLayers(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._iterateLayers(map.addLayer, map); + }, + + onRemove: function (map) { + this._iterateLayers(map.removeLayer, map); + this._map = null; + }, + + addTo: function (map) { + map.addLayer(this); + return this; + }, + + _iterateLayers: 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) { + layer.on('click dblclick mouseover mouseout', 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', this._propagateEvent, this); + + L.LayerGroup.prototype.removeLayer.call(this, layer); + + return this.invoke('unbindPopup'); + }, + + bindPopup: function (content) { + this._popupContent = content; + return this.invoke('bindPopup', content); + }, + + setStyle: function (style) { + return this.invoke('setStyle', style); + }, + + getBounds: function () { + var bounds = new L.LatLngBounds(); + this._iterateLayers(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) + CLIP_PADDING: 0.5 + }, + + options: { + stroke: true, + color: '#0033ff', + 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; + + this._initElements(); + this._initEvents(); + this.projectLatlngs(); + this._updatePath(); + + map.on({ + 'viewreset': this.projectLatlngs, + 'moveend': this._updatePath + }, this); + }, + + addTo: function (map) { + map.addLayer(this); + return this; + }, + + onRemove: function (map) { + this._map = null; + + map._pathRoot.removeChild(this._container); + + 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)), + max = min.add(size.multiplyBy(1 + p * 2)); + + 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 () { + if (this._container) { + this._map._pathRoot.appendChild(this._container); + } + }, + + bringToBack: function () { + if (this._container) { + var root = this._map._pathRoot; + root.insertBefore(this._container, root.firstChild); + } + }, + + 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); + + this._map._pathRoot.appendChild(this._container); + }, + + _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); + } 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; + } + + if (e.type === 'contextmenu') { + L.DomEvent.preventDefault(e); + } + + 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 + }); + + 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._openPopupAdded) { + this.on('click', this._openPopup, this); + this._openPopupAdded = true; + } + + 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 = (function () { + var div = document.createElement('div'); + div.innerHTML = ''; + + var shape = div.firstChild; + shape.style.behavior = 'url(#default#VML)'; + + return shape && (typeof shape.adj === 'object'); +}()); + +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; + } 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 + }, + + _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); + } + }, + + onRemove: function (map) { + map + .off('viewreset', this._projectLatlngs, this) + .off('moveend', this._updatePath, this) + .fire('moveend'); + } +}); + +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 = 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 = latlngs; + return this.redraw(); + }, + + addLatLng: function (latlng) { + this._latlngs.push(latlng); + return this.redraw(); + }, + + spliceLatLngs: function (index, howMany) { + var removed = [].splice.apply(this._latlngs, arguments); + 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); + }, + + _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 () { + 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 = 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._iterateLayers(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.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.features, + i, len; + + if (features) { + for (i = 0, len = features.length; i < len; i++) { + this.addData(features[i]); + } + return this; + } + + var options = this.options, + style = options.style; + + if (options.filter && !options.filter(geojson)) { return; } + + var layer = L.GeoJSON.geometryToLayer(geojson, options.pointToLayer); + + if (style) { + if (typeof style === 'function') { + style = style(geojson); + } + if (layer.setStyle) { + layer.setStyle(style); + } + } + + if (options.onEachFeature) { + options.onEachFeature(geojson, layer); + } + + return this.addLayer(layer); + } +}); + +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; + +/* + * 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; + } + + 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; + + L.DomEvent.preventDefault(e); + + if (L.Browser.touch && el.tagName.toLowerCase() === 'a') { + L.DomUtil.addClass(el, 'leaflet-active'); + } + + this._moved = false; + if (this._moving) { + return; + } + + if (!L.Browser.touch) { + L.DomUtil.disableTextSelection(); + this._setMovingCursor(); + } + + this._startPos = this._newPos = L.DomUtil.getPosition(this._element); + this._startPoint = new L.Point(first.clientX, first.clientY); + + 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._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); + } +}); + + +/* + * L.Handler classes are used internally to inject interaction features to classes like Map and Marker. + */ + +L.Handler = L.Class.extend({ + initialize: function (map) { + this._map = map; + }, + + enable: function () { + if (this._enabled) { return; } + + this._enabled = true; + this.addHooks(); + }, + + disable: function () { + if (!this._enabled) { return; } + + this._enabled = false; + this.removeHooks(); + }, + + enabled: function () { + return !!this._enabled; + } +}); + + +/* + * L.Handler.MapDrag is used internally by L.Map to make the map draggable. + */ + +L.Map.mergeOptions({ + dragging: true, + + inertia: !L.Browser.android23, + inertiaDeceleration: L.Browser.touch ? 3000 : 2000, // px/s^2 + inertiaMaxSpeed: L.Browser.touch ? 1500 : 1000, // px/s + inertiaThreshold: L.Browser.touch ? 32 : 16, // ms + + // TODO refactor, move to CRS + worldCopyJump: true, + continuousWorld: false +}); + +L.Map.Drag = L.Handler.extend({ + addHooks: function () { + if (!this._draggable) { + this._draggable = new L.Draggable(this._map._mapPane, this._map._container); + + this._draggable.on({ + 'dragstart': this._onDragStart, + 'drag': this._onDrag, + 'dragend': this._onDragEnd + }, this); + + var options = this._map.options; + + if (options.worldCopyJump && !options.continuousWorld) { + this._draggable.on('predrag', this._onPreDrag, this); + this._map.on('viewreset', this._onViewReset, this); + } + } + this._draggable.enable(); + }, + + removeHooks: function () { + this._draggable.disable(); + }, + + moved: function () { + return this._draggable && this._draggable._moved; + }, + + _onDragStart: function () { + var map = this._map; + + map + .fire('movestart') + .fire('dragstart'); + + if (map._panTransition) { + map._panTransition._onTransitionEnd(true); + } + + if (map.options.inertia) { + this._positions = []; + this._times = []; + } + }, + + _onDrag: function () { + if (this._map.options.inertia) { + var time = this._lastTime = +new Date(), + pos = this._lastPos = this._draggable._newPos; + + this._positions.push(pos); + this._times.push(time); + + if (time - this._times[0] > 200) { + this._positions.shift(); + this._times.shift(); + } + } + + this._map + .fire('move') + .fire('drag'); + }, + + _onViewReset: function () { + var pxCenter = this._map.getSize().divideBy(2), + pxWorldCenter = this._map.latLngToLayerPoint(new L.LatLng(0, 0)); + + this._initialWorldOffset = pxWorldCenter.subtract(pxCenter); + }, + + _onPreDrag: function () { + // TODO refactor to be able to adjust map pane position after zoom + var map = this._map, + worldWidth = map.options.crs.scale(map.getZoom()), + halfWidth = Math.round(worldWidth / 2), + dx = this._initialWorldOffset.x, + 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, + + noInertia = !options.inertia || + delay > options.inertiaThreshold || + this._positions[0] === undefined; + + if (noInertia) { + map.fire('moveend'); + + } else { + + var direction = this._lastPos.subtract(this._positions[0]), + duration = (this._lastTime + delay - this._times[0]) / 1000, + + speedVector = direction.multiplyBy(0.58 / duration), + speed = speedVector.distanceTo(new L.Point(0, 0)), + + limitedSpeed = Math.min(options.inertiaMaxSpeed, speed), + limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed), + + decelerationDuration = limitedSpeed / options.inertiaDeceleration, + offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round(); + + var panOptions = { + duration: decelerationDuration, + easing: 'ease-out' + }; + + L.Util.requestAnimFrame(L.Util.bind(function () { + this._map.panBy(offset, panOptions); + }, this)); + } + + map.fire('dragend'); + + if (options.maxBounds) { + // TODO predrag validation instead of animation + L.Util.requestAnimFrame(this._panInsideMaxBounds, map, true, map._container); + } + }, + + _panInsideMaxBounds: function () { + this.panInsideBounds(this.options.maxBounds); + } +}); + +L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag); + +/* + * L.Handler.DoubleClickZoom is used internally by L.Map to add double-click zooming. + */ + +L.Map.mergeOptions({ + doubleClickZoom: true +}); + +L.Map.DoubleClickZoom = L.Handler.extend({ + addHooks: function () { + this._map.on('dblclick', this._onDoubleClick); + }, + + removeHooks: function () { + this._map.off('dblclick', this._onDoubleClick); + }, + + _onDoubleClick: function (e) { + this.setView(e.latlng, this._zoom + 1); + } +}); + +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.Map.mergeOptions({ + scrollWheelZoom: !L.Browser.touch +}); + +L.Map.ScrollWheelZoom = L.Handler.extend({ + addHooks: function () { + L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this); + this._delta = 0; + }, + + removeHooks: function () { + L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll); + }, + + _onWheelScroll: function (e) { + var delta = L.DomEvent.getWheelDelta(e); + + this._delta += delta; + this._lastMousePos = this._map.mouseEventToContainerPoint(e); + + clearTimeout(this._timer); + this._timer = setTimeout(L.Util.bind(this._performZoom, this), 50); + + L.DomEvent.preventDefault(e); + }, + + _performZoom: function () { + var map = this._map, + delta = Math.round(this._delta), + zoom = map.getZoom(); + + delta = Math.max(Math.min(delta, 4), -4); + delta = map._limitZoom(zoom + delta) - zoom; + + this._delta = 0; + + if (!delta) { return; } + + var newZoom = zoom + delta, + newCenter = this._getCenterForScrollWheelZoom(this._lastMousePos, newZoom); + + map.setView(newCenter, newZoom); + }, + + _getCenterForScrollWheelZoom: function (mousePos, newZoom) { + var map = this._map, + scale = map.getZoomScale(newZoom), + viewHalf = map.getSize().divideBy(2), + centerOffset = mousePos.subtract(viewHalf).multiplyBy(1 - 1 / scale), + newCenterPoint = map._getTopLeftPoint().add(viewHalf).add(centerOffset); + + return map.unproject(newCenterPoint); + } +}); + +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); + }, + + removeDoubleTapListener: function (obj, id) { + var pre = '_leaflet_'; + obj.removeEventListener(obj, obj[pre + 'touchstart' + id], false); + obj.removeEventListener(obj, obj[pre + 'touchend' + id], false); + } +}); + + +/* + * L.Handler.TouchZoom is used internally by L.Map to add touch-zooming on Webkit-powered mobile browsers. + */ + +L.Map.mergeOptions({ + touchZoom: L.Browser.touch && !L.Browser.android23 +}); + +L.Map.TouchZoom = L.Handler.extend({ + addHooks: function () { + L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this); + }, + + removeHooks: function () { + L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this); + }, + + _onTouchStart: function (e) { + var map = this._map; + + if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; } + + var p1 = map.mouseEventToLayerPoint(e.touches[0]), + p2 = map.mouseEventToLayerPoint(e.touches[1]), + viewCenter = map._getCenterLayerPoint(); + + this._startCenter = p1.add(p2).divideBy(2, true); + this._startDist = p1.distanceTo(p2); + + this._moved = false; + this._zooming = true; + + this._centerOffset = viewCenter.subtract(this._startCenter); + + L.DomEvent + .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; + + var p1 = map.mouseEventToLayerPoint(e.touches[0]), + p2 = map.mouseEventToLayerPoint(e.touches[1]); + + this._scale = p1.distanceTo(p2) / this._startDist; + this._delta = p1.add(p2).divideBy(2, true).subtract(this._startCenter); + + if (this._scale === 1) { return; } + + if (!this._moved) { + L.DomUtil.addClass(map._mapPane, 'leaflet-zoom-anim leaflet-touching'); + + map + .fire('movestart') + .fire('zoomstart') + ._prepareTileBg(); + + this._moved = true; + } + + var 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 + + map._tileBg.style[L.DomUtil.TRANSFORM] = + L.DomUtil.getTranslateString(this._delta) + ' ' + + L.DomUtil.getScaleString(this._scale, this._startCenter); + + L.DomEvent.preventDefault(e); + }, + + _onTouchEnd: function (e) { + if (!this._moved || !this._zooming) { return; } + + var map = this._map; + + this._zooming = false; + L.DomUtil.removeClass(map._mapPane, 'leaflet-touching'); + + L.DomEvent + .off(document, 'touchmove', this._onTouchMove) + .off(document, 'touchend', this._onTouchEnd); + + var origin = this._getScaleOrigin(), + center = map.layerPointToLatLng(origin), + + oldZoom = map.getZoom(), + floatZoomDelta = map.getScaleZoom(this._scale) - oldZoom, + roundZoomDelta = (floatZoomDelta > 0 ? Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)), + zoom = map._limitZoom(oldZoom + roundZoomDelta); + + map.fire('zoomanim', { + center: center, + zoom: zoom + }); + + map._runAnimation(center, zoom, map.getZoomScale(zoom) / this._scale, origin, true); + }, + + _getScaleOrigin: function () { + var centerOffset = this._centerOffset.subtract(this._delta).divideBy(this._scale); + return this._startCenter.add(centerOffset); + } +}); + +L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom); + +/* + * L.Handler.ShiftDragZoom is used internally by L.Map to add shift-drag zoom (zoom to a selected bounding box). + */ + +L.Map.mergeOptions({ + boxZoom: true +}); + +L.Map.BoxZoom = L.Handler.extend({ + initialize: function (map) { + this._map = map; + this._container = map._container; + this._pane = map._panes.overlayPane; + }, + + addHooks: function () { + L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this); + }, + + removeHooks: function () { + L.DomEvent.off(this._container, 'mousedown', this._onMouseDown); + }, + + _onMouseDown: function (e) { + if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; } + + L.DomUtil.disableTextSelection(); + + this._startLayerPoint = this._map.mouseEventToLayerPoint(e); + + this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._pane); + L.DomUtil.setPosition(this._box, this._startLayerPoint); + + //TODO refactor: move cursor to styles + this._container.style.cursor = 'crosshair'; + + L.DomEvent + .on(document, 'mousemove', this._onMouseMove, this) + .on(document, 'mouseup', this._onMouseUp, this) + .preventDefault(e); + + this._map.fire("boxzoomstart"); + }, + + _onMouseMove: function (e) { + var startPoint = this._startLayerPoint, + box = this._box, + + layerPoint = this._map.mouseEventToLayerPoint(e), + offset = layerPoint.subtract(startPoint), + + newPos = new L.Point( + Math.min(layerPoint.x, startPoint.x), + Math.min(layerPoint.y, startPoint.y)); + + L.DomUtil.setPosition(box, newPos); + + // TODO refactor: remove hardcoded 4 pixels + box.style.width = (Math.abs(offset.x) - 4) + 'px'; + box.style.height = (Math.abs(offset.y) - 4) + 'px'; + }, + + _onMouseUp: function (e) { + this._pane.removeChild(this._box); + this._container.style.cursor = ''; + + L.DomUtil.enableTextSelection(); + + L.DomEvent + .off(document, 'mousemove', this._onMouseMove) + .off(document, 'mouseup', this._onMouseUp); + + var map = this._map, + layerPoint = map.mouseEventToLayerPoint(e); + + var bounds = new L.LatLngBounds( + map.layerPointToLatLng(this._startLayerPoint), + map.layerPointToLatLng(layerPoint)); + + map.fitBounds(bounds); + + map.fire("boxzoomend", { + boxZoomBounds: bounds + }); + } +}); + +L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom); + + +/* + * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable. + */ + +L.Handler.MarkerDrag = L.Handler.extend({ + initialize: function (marker) { + this._marker = marker; + }, + + addHooks: function () { + var icon = this._marker._icon; + if (!this._draggable) { + this._draggable = new L.Draggable(icon, icon) + .on('dragstart', this._onDragStart, this) + .on('drag', this._onDrag, this) + .on('dragend', this._onDragEnd, this); + } + this._draggable.enable(); + }, + + removeHooks: function () { + this._draggable.disable(); + }, + + moved: function () { + return this._draggable && this._draggable._moved; + }, + + _onDragStart: function (e) { + this._marker + .closePopup() + .fire('movestart') + .fire('dragstart'); + }, + + _onDrag: function (e) { + // update shadow position + var iconPos = L.DomUtil.getPosition(this._marker._icon); + if (this._marker._shadow) { + L.DomUtil.setPosition(this._marker._shadow, iconPos); + } + + this._marker._latlng = this._marker._map.layerPointToLatLng(iconPos); + + this._marker + .fire('move') + .fire('drag'); + }, + + _onDragEnd: function () { + this._marker + .fire('moveend') + .fire('dragend'); + } +}); + + +L.Handler.PolyEdit = L.Handler.extend({ + options: { + icon: new L.DivIcon({ + iconSize: new L.Point(8, 8), + className: 'leaflet-div-icon leaflet-editing-icon' + }) + }, + + initialize: function (poly, options) { + this._poly = poly; + L.Util.setOptions(this, options); + }, + + addHooks: function () { + if (this._poly._map) { + if (!this._markerGroup) { + this._initMarkers(); + } + this._poly._map.addLayer(this._markerGroup); + } + }, + + removeHooks: function () { + if (this._poly._map) { + this._poly._map.removeLayer(this._markerGroup); + delete this._markerGroup; + delete this._markers; + } + }, + + updateMarkers: function () { + this._markerGroup.clearLayers(); + this._initMarkers(); + }, + + _initMarkers: function () { + if (!this._markerGroup) { + this._markerGroup = new L.LayerGroup(); + } + this._markers = []; + + var latlngs = this._poly._latlngs, + i, j, len, marker; + + // TODO refactor holes implementation in Polygon to support it here + + for (i = 0, len = latlngs.length; i < len; i++) { + + marker = this._createMarker(latlngs[i], i); + marker.on('click', this._onMarkerClick, this); + this._markers.push(marker); + } + + var markerLeft, markerRight; + + 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]; + + this._createMiddleMarker(markerLeft, markerRight); + this._updatePrevNext(markerLeft, markerRight); + } + }, + + _createMarker: function (latlng, index) { + var marker = new L.Marker(latlng, { + draggable: true, + icon: this.options.icon + }); + + marker._origLatLng = latlng; + marker._index = index; + + marker.on('drag', this._onMarkerDrag, this); + marker.on('dragend', this._fireEdit, this); + + this._markerGroup.addLayer(marker); + + return marker; + }, + + _fireEdit: function () { + this._poly.fire('edit'); + }, + + _onMarkerDrag: function (e) { + var marker = e.target; + + L.Util.extend(marker._origLatLng, marker._latlng); + + if (marker._middleLeft) { + marker._middleLeft.setLatLng(this._getMiddleLatLng(marker._prev, marker)); + } + if (marker._middleRight) { + marker._middleRight.setLatLng(this._getMiddleLatLng(marker, marker._next)); + } + + this._poly.redraw(); + }, + + _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; + } + + var marker = e.target, + i = marker._index; + + // 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); + this._updatePrevNext(marker._prev, marker._next); + } + + // 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); + } + if (marker._middleRight) { + this._markerGroup.removeLayer(marker._middleRight); + } + this._markers.splice(i, 1); + this._poly.spliceLatLngs(i, 1); + this._updateIndexes(i, -1); + this._poly.fire('edit'); + }, + + _updateIndexes: function (index, delta) { + this._markerGroup._iterateLayers(function (marker) { + if (marker._index > index) { + marker._index += delta; + } + }); + }, + + _createMiddleMarker: function (marker1, marker2) { + var latlng = this._getMiddleLatLng(marker1, marker2), + marker = this._createMarker(latlng), + onClick, + onDragStart, + onDragEnd; + + marker.setOpacity(0.6); + + marker1._middleRight = marker2._middleLeft = marker; + + onDragStart = function () { + var i = marker2._index; + + marker._index = i; + + marker + .off('click', onClick) + .on('click', this._onMarkerClick, this); + + latlng.lat = marker.getLatLng().lat; + latlng.lng = marker.getLatLng().lng; + this._poly.spliceLatLngs(i, 0, latlng); + this._markers.splice(i, 0, marker); + + marker.setOpacity(1); + + this._updateIndexes(i, 1); + marker2._index++; + this._updatePrevNext(marker1, marker); + this._updatePrevNext(marker, marker2); + }; + + onDragEnd = function () { + marker.off('dragstart', onDragStart, this); + marker.off('dragend', onDragEnd, this); + + this._createMiddleMarker(marker1, marker); + this._createMiddleMarker(marker, marker2); + }; + + onClick = function () { + onDragStart.call(this); + onDragEnd.call(this); + this._poly.fire('edit'); + }; + + marker + .on('click', onClick, this) + .on('dragstart', onDragStart, this) + .on('dragend', onDragEnd, this); + + this._markerGroup.addLayer(marker); + }, + + _updatePrevNext: function (marker1, marker2) { + marker1._next = marker2; + marker2._prev = marker1; + }, + + _getMiddleLatLng: function (marker1, marker2) { + var map = this._poly._map, + p1 = map.latLngToLayerPoint(marker1.getLatLng()), + p2 = map.latLngToLayerPoint(marker2.getLatLng()); + + return map.layerPointToLatLng(p1._add(p2).divideBy(2)); + } +}); + + + +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); + } + }, + + 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.Map.include({ + addControl: function (control) { + control.addTo(this); + return this; + }, + + removeControl: function (control) { + control.removeFrom(this); + return this; + }, + + _initControlPos: function () { + var corners = this._controlCorners = {}, + l = 'leaflet-', + container = this._controlContainer = + L.DomUtil.create('div', l + 'control-container', this._container); + + function createCorner(vSide, hSide) { + var className = l + vSide + ' ' + l + hSide; + + corners[vSide + hSide] = + L.DomUtil.create('div', className, container); + } + + createCorner('top', 'left'); + createCorner('top', 'right'); + createCorner('bottom', 'left'); + createCorner('bottom', 'right'); + } +}); + + +L.Control.Zoom = L.Control.extend({ + options: { + position: 'topleft' + }, + + onAdd: function (map) { + var className = 'leaflet-control-zoom', + container = L.DomUtil.create('div', className); + + this._createButton('Zoom in', className + '-in', container, map.zoomIn, map); + this._createButton('Zoom out', className + '-out', container, map.zoomOut, map); + + return container; + }, + + _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, '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.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(); + }, + + addAttribution: function (text) { + if (!text) { return; } + + if (!this._attributions[text]) { + this._attributions[text] = 0; + } + this._attributions[text]++; + + this._update(); + }, + + removeAttribution: function (text) { + if (!text) { return; } + + this._attributions[text]--; + this._update(); + }, + + _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.Scale = L.Control.extend({ + options: { + position: 'bottomleft', + maxWidth: 100, + metric: true, + imperial: true, + updateWhenIdle: false + }, + + onAdd: function (map) { + this._map = map; + + var className = 'leaflet-control-scale', + container = L.DomUtil.create('div', className), + options = this.options; + + if (options.metric) { + this._mScale = L.DomUtil.create('div', className + '-line', container); + } + if (options.imperial) { + this._iScale = L.DomUtil.create('div', className + '-line', container); + } + + map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this); + this._update(); + + return container; + }, + + onRemove: function (map) { + map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this); + }, + + _update: function () { + var bounds = this._map.getBounds(), + centerLat = bounds.getCenter().lat, + + left = new L.LatLng(centerLat, bounds.getSouthWest().lng), + right = new L.LatLng(centerLat, bounds.getNorthEast().lng), + + size = this._map.getSize(), + options = this.options, + maxMeters = 0; + + if (size.x > 0) { + maxMeters = left.distanceTo(right) * (options.maxWidth / size.x); + } + + if (options.metric && maxMeters) { + this._updateMetric(maxMeters); + } + + if (options.imperial && maxMeters) { + this._updateImperial(maxMeters); + } + }, + + _updateMetric: function (maxMeters) { + var meters = this._getRoundNum(maxMeters); + + this._mScale.style.width = this._getScaleWidth(meters / maxMeters) + 'px'; + this._mScale.innerHTML = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km'; + }, + + _updateImperial: function (maxMeters) { + var maxFeet = maxMeters * 3.2808399, + scale = this._iScale, + maxMiles, miles, feet; + + if (maxFeet > 5280) { + maxMiles = maxFeet / 5280; + miles = this._getRoundNum(maxMiles); + + scale.style.width = this._getScaleWidth(miles / maxMiles) + 'px'; + scale.innerHTML = miles + ' mi'; + + } else { + feet = this._getRoundNum(maxFeet); + + scale.style.width = this._getScaleWidth(feet / maxFeet) + 'px'; + scale.innerHTML = feet + ' ft'; + } + }, + + _getScaleWidth: function (ratio) { + return Math.round(this.options.maxWidth * ratio) - 10; + }, + + _getRoundNum: function (num) { + var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1), + d = num / pow10; + + d = d >= 10 ? 10 : d >= 5 ? 5 : d >= 2 ? 2 : 1; + + return pow10 * d; + } +}); + + + +L.Control.Layers = L.Control.extend({ + options: { + collapsed: true, + position: 'topright' + }, + + initialize: function (baseLayers, overlays, options) { + L.Util.setOptions(this, options); + + this._layers = {}; + + 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 + }; + }, + + _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'); + }, + + _addItem: function (obj, onclick) { + var label = document.createElement('label'); + + var input = document.createElement('input'); + if (!obj.overlay) { + input.name = 'leaflet-base-layers'; + } + input.type = obj.overlay ? 'checkbox' : 'radio'; + input.layerId = L.Util.stamp(obj.layer); + input.defaultChecked = this._map.hasLayer(obj.layer); + + L.DomEvent.on(input, 'click', this._onInputClick, this); + + var name = document.createTextNode(' ' + obj.name); + + label.appendChild(input); + label.appendChild(name); + + var container = obj.overlay ? this._overlaysList : this._baseLayersList; + container.appendChild(label); + }, + + _onInputClick: function () { + var i, input, obj, + inputs = this._form.getElementsByTagName('input'), + inputsLen = inputs.length; + + for (i = 0; i < inputsLen; i++) { + input = inputs[i]; + obj = this._layers[input.layerId]; + + if (input.checked) { + this._map.addLayer(obj.layer, !obj.overlay); + } else { + this._map.removeLayer(obj.layer); + } + } + }, + + _expand: function () { + L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded'); + }, + + _collapse: function () { + this._container.className = this._container.className.replace(' leaflet-control-layers-expanded', ''); + } +}); + + +L.Transition = L.Class.extend({ + includes: L.Mixin.Events, + + statics: { + CUSTOM_PROPS_SETTERS: { + position: L.DomUtil.setPosition + //TODO transform custom attr + }, + + implemented: function () { + return L.Transition.NATIVE || L.Transition.TIMER; + } + }, + + options: { + easing: 'ease', + duration: 0.5 + }, + + _setProperty: function (prop, value) { + var setters = L.Transition.CUSTOM_PROPS_SETTERS; + if (prop in setters) { + setters[prop](this._el, value); + } else { + this._el.style[prop] = value; + } + } +}); + + +/* + * L.Transition native implementation that powers Leaflet animation + * in browsers that support CSS3 Transitions + */ + +L.Transition = L.Transition.extend({ + statics: (function () { + var transition = L.DomUtil.TRANSITION, + transitionEnd = (transition === 'webkitTransition' || transition === 'OTransition' ? + transition + 'End' : 'transitionend'); + + return { + NATIVE: !!transition, + + TRANSITION: transition, + PROPERTY: transition + 'Property', + DURATION: transition + 'Duration', + EASING: transition + 'TimingFunction', + END: transitionEnd, + + // transition-property value to use with each particular custom property + CUSTOM_PROPS_PROPERTIES: { + position: L.Browser.any3d ? L.DomUtil.TRANSFORM : 'top, left' + } + }; + }()), + + options: { + fakeStepInterval: 100 + }, + + initialize: function (/*HTMLElement*/ el, /*Object*/ options) { + this._el = el; + L.Util.setOptions(this, options); + + L.DomEvent.on(el, L.Transition.END, this._onTransitionEnd, this); + this._onFakeStep = L.Util.bind(this._onFakeStep, this); + }, + + run: function (/*Object*/ props) { + var prop, + propsList = [], + customProp = L.Transition.CUSTOM_PROPS_PROPERTIES; + + for (prop in props) { + if (props.hasOwnProperty(prop)) { + prop = customProp[prop] ? customProp[prop] : prop; + prop = this._dasherize(prop); + propsList.push(prop); + } + } + + this._el.style[L.Transition.DURATION] = this.options.duration + 's'; + this._el.style[L.Transition.EASING] = this.options.easing; + this._el.style[L.Transition.PROPERTY] = propsList.join(', '); + + for (prop in props) { + if (props.hasOwnProperty(prop)) { + this._setProperty(prop, props[prop]); + } + } + + this._inProgress = true; + + this.fire('start'); + + if (L.Browser.mobileWebkit) { + // Set up a slightly delayed call to a backup event if webkitTransitionEnd doesn't fire properly + this.backupEventFire = setTimeout(L.Util.bind(this._onBackupFireEnd, this), this.options.duration * 1.2 * 1000); + } + + if (L.Transition.NATIVE) { + clearInterval(this._timer); + this._timer = setInterval(this._onFakeStep, this.options.fakeStepInterval); + } else { + this._onTransitionEnd(); + } + }, + + _dasherize: (function () { + var re = /([A-Z])/g; + + function replaceFn(w) { + return '-' + w.toLowerCase(); + } + + return function (str) { + return str.replace(re, replaceFn); + }; + }()), + + _onFakeStep: function () { + this.fire('step'); + }, + + _onTransitionEnd: function (e) { + if (this._inProgress) { + this._inProgress = false; + clearInterval(this._timer); + + this._el.style[L.Transition.TRANSITION] = ''; + + // Clear the delayed call to the backup event, we have recieved some form of webkitTransitionEnd + clearTimeout(this.backupEventFire); + delete this.backupEventFire; + + this.fire('step'); + + if (e && e.type) { + this.fire('end'); + } + } + }, + + _onBackupFireEnd: function () { + // Create and fire a transitionEnd event on the element. + + var event = document.createEvent("Event"); + event.initEvent(L.Transition.END, true, false); + this._el.dispatchEvent(event); + } +}); + + +/* + * L.Transition fallback implementation that powers Leaflet animation + * in browsers that don't support CSS3 Transitions + */ + +L.Transition = L.Transition.NATIVE ? L.Transition : L.Transition.extend({ + statics: { + getTime: Date.now || function () { + return +new Date(); + }, + + TIMER: true, + + EASINGS: { + 'ease': [0.25, 0.1, 0.25, 1.0], + 'linear': [0.0, 0.0, 1.0, 1.0], + 'ease-in': [0.42, 0, 1.0, 1.0], + 'ease-out': [0, 0, 0.58, 1.0], + 'ease-in-out': [0.42, 0, 0.58, 1.0] + }, + + CUSTOM_PROPS_GETTERS: { + position: L.DomUtil.getPosition + }, + + //used to get units from strings like "10.5px" (->px) + UNIT_RE: /^[\d\.]+(\D*)$/ + }, + + options: { + fps: 50 + }, + + initialize: function (el, options) { + this._el = el; + L.Util.extend(this.options, options); + + var easings = L.Transition.EASINGS[this.options.easing] || L.Transition.EASINGS.ease; + + this._p1 = new L.Point(0, 0); + this._p2 = new L.Point(easings[0], easings[1]); + this._p3 = new L.Point(easings[2], easings[3]); + this._p4 = new L.Point(1, 1); + + this._step = L.Util.bind(this._step, this); + this._interval = Math.round(1000 / this.options.fps); + }, + + run: function (props) { + this._props = {}; + + var getters = L.Transition.CUSTOM_PROPS_GETTERS, + re = L.Transition.UNIT_RE; + + this.fire('start'); + + for (var prop in props) { + if (props.hasOwnProperty(prop)) { + var p = {}; + if (prop in getters) { + p.from = getters[prop](this._el); + } else { + var matches = this._el.style[prop].match(re); + p.from = parseFloat(matches[0]); + p.unit = matches[1]; + } + p.to = props[prop]; + this._props[prop] = p; + } + } + + clearInterval(this._timer); + this._timer = setInterval(this._step, this._interval); + this._startTime = L.Transition.getTime(); + }, + + _step: function () { + var time = L.Transition.getTime(), + elapsed = time - this._startTime, + duration = this.options.duration * 1000; + + if (elapsed < duration) { + this._runFrame(this._cubicBezier(elapsed / duration)); + } else { + this._runFrame(1); + this._complete(); + } + }, + + _runFrame: function (percentComplete) { + var setters = L.Transition.CUSTOM_PROPS_SETTERS, + prop, p, value; + + for (prop in this._props) { + if (this._props.hasOwnProperty(prop)) { + p = this._props[prop]; + if (prop in setters) { + value = p.to.subtract(p.from).multiplyBy(percentComplete).add(p.from); + setters[prop](this._el, value); + } else { + this._el.style[prop] = + ((p.to - p.from) * percentComplete + p.from) + p.unit; + } + } + } + this.fire('step'); + }, + + _complete: function () { + clearInterval(this._timer); + this.fire('end'); + }, + + _cubicBezier: function (t) { + var a = Math.pow(1 - t, 3), + b = 3 * Math.pow(1 - t, 2) * t, + c = 3 * (1 - t) * Math.pow(t, 2), + d = Math.pow(t, 3), + p1 = this._p1.multiplyBy(a), + p2 = this._p2.multiplyBy(b), + p3 = this._p3.multiplyBy(c), + p4 = this._p4.multiplyBy(d); + + return p1.add(p2).add(p3).add(p4).y; + } +}); + + + +L.Map.include(!(L.Transition && L.Transition.implemented()) ? {} : { + + setView: function (center, zoom, forceReset) { + zoom = this._limitZoom(zoom); + + var zoomChanged = (this._zoom !== zoom); + + if (this._loaded && !forceReset && this._layers) { + var done = (zoomChanged ? + this._zoomToIfClose && this._zoomToIfClose(center, zoom) : + this._panByIfClose(center)); + + // exit if animated pan or zoom started + if (done) { return this; } + } + + // reset the map view + this._resetView(center, zoom); + + return this; + }, + + panBy: function (offset, options) { + if (!(offset.x || offset.y)) { + return this; + } + + if (!this._panTransition) { + this._panTransition = new L.Transition(this._mapPane); + + this._panTransition.on({ + 'step': this._onPanTransitionStep, + 'end': this._onPanTransitionEnd + }, this); + } + + L.Util.setOptions(this._panTransition, L.Util.extend({duration: 0.25}, options)); + + this.fire('movestart'); + + L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim'); + + this._panTransition.run({ + position: L.DomUtil.getPosition(this._mapPane).subtract(offset) + }); + + return this; + }, + + _onPanTransitionStep: function () { + this.fire('move'); + }, + + _onPanTransitionEnd: function () { + L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim'); + this.fire('moveend'); + }, + + _panByIfClose: function (center) { + // difference between the new and current centers in pixels + var offset = this._getCenterOffset(center); + + if (this._offsetIsWithinView(offset)) { + this.panBy(offset); + return true; + } + return false; + }, + + _offsetIsWithinView: function (offset, multiplyFactor) { + var m = multiplyFactor || 1, + size = this.getSize(); + + return (Math.abs(offset.x) <= size.x * m) && + (Math.abs(offset.y) <= size.y * m); + } +}); + + +L.Map.mergeOptions({ + zoomAnimation: L.DomUtil.TRANSITION && !L.Browser.android23 && !L.Browser.mobileOpera +}); + +L.Map.include(!L.DomUtil.TRANSITION ? {} : { + + _zoomToIfClose: function (center, zoom) { + + if (this._animatingZoom) { return true; } + if (!this.options.zoomAnimation) { return false; } + + var scale = this.getZoomScale(zoom), + offset = this._getCenterOffset(center).divideBy(1 - 1 / scale); + + // if offset does not exceed half of the view + if (!this._offsetIsWithinView(offset, 1)) { return false; } + + L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim'); + + this + .fire('movestart') + .fire('zoomstart'); + + this._prepareTileBg(); + + this.fire('zoomanim', { + center: center, + zoom: zoom + }); + + var origin = this._getCenterLayerPoint().add(offset); + + this._runAnimation(center, zoom, scale, origin); + + return true; + }, + + + _runAnimation: function (center, zoom, scale, origin, backwardsTransform) { + this._animatingZoom = true; + + this._animateToCenter = center; + this._animateToZoom = zoom; + + var transform = L.DomUtil.TRANSFORM, + tileBg = this._tileBg; + + clearTimeout(this._clearTileBgTimer); + + //dumb FireFox hack, I have no idea why this magic zero translate fixes the scale transition problem + if (L.Browser.gecko || window.opera) { + tileBg.style[transform] += ' translate(0,0)'; + } + + var scaleStr; + + // Android 2.* doesn't like translate/scale chains, transformOrigin + scale works better but + // it breaks touch zoom which Anroid doesn't support anyway, so that's a really ugly hack + + // TODO work around this prettier + if (L.Browser.android23) { + tileBg.style[transform + 'Origin'] = origin.x + 'px ' + origin.y + 'px'; + scaleStr = 'scale(' + scale + ')'; + } else { + scaleStr = L.DomUtil.getScaleString(scale, origin); + } + + L.Util.falseFn(tileBg.offsetWidth); //hack to make sure transform is updated before running animation + + var options = {}; + if (backwardsTransform) { + options[transform] = tileBg.style[transform] + ' ' + scaleStr; + } else { + options[transform] = scaleStr + ' ' + tileBg.style[transform]; + } + + tileBg.transition.run(options); + }, + + _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 + // (disable this for Android due to it not supporting double translate) + if (!L.Browser.android23 && tileBg && + this._getLoadedTilesPercentage(tileBg) > 0.5 && + this._getLoadedTilesPercentage(tilePane) < 0.5) { + + tilePane.style.visibility = 'hidden'; + tilePane.empty = true; + this._stopLoadingImages(tilePane); + return; + } + + if (!tileBg) { + tileBg = this._tileBg = this._createPane('leaflet-tile-pane', this._mapPane); + tileBg.style.zIndex = 1; + } + + // prepare the background pane to become the main tile pane + tileBg.style[L.DomUtil.TRANSFORM] = ''; + tileBg.style.visibility = 'hidden'; + + // tells tile layers to reinitialize their containers + tileBg.empty = true; //new FG + tilePane.empty = false; //new BG + + //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; + + if (!newTileBg.transition) { + // TODO move to Map options + newTileBg.transition = new L.Transition(newTileBg, { + duration: 0.25, + easing: 'cubic-bezier(0.25,0.1,0.25,0.75)' + }); + newTileBg.transition.on('end', this._onZoomTransitionEnd, this); + } + + this._stopLoadingImages(newTileBg); + }, + + _getLoadedTilesPercentage: function (container) { + var tiles = container.getElementsByTagName('img'), + i, len, count = 0; + + for (i = 0, len = tiles.length; i < len; i++) { + if (tiles[i].complete) { + count++; + } + } + return count / len; + }, + + // stops loading all tiles in the background layer + _stopLoadingImages: function (container) { + var tiles = Array.prototype.slice.call(container.getElementsByTagName('img')), + i, len, tile; + + for (i = 0, len = tiles.length; i < len; i++) { + tile = tiles[i]; + + if (!tile.complete) { + tile.onload = L.Util.falseFn; + tile.onerror = L.Util.falseFn; + tile.src = L.Util.emptyImageUrl; + + tile.parentNode.removeChild(tile); + } + } + }, + + _onZoomTransitionEnd: function () { + this._restoreTileFront(); + + L.Util.falseFn(this._tileBg.offsetWidth); // force reflow + this._resetView(this._animateToCenter, this._animateToZoom, true, true); + + L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim'); + this._animatingZoom = false; + }, + + _restoreTileFront: function () { + this._tilePane.innerHTML = ''; + this._tilePane.style.visibility = ''; + this._tilePane.style.zIndex = 2; + this._tileBg.style.zIndex = 1; + }, + + _clearTileBg: function () { + if (!this._animatingZoom && !this.touchZoom._zooming) { + this._tileBg.innerHTML = ''; + } + } +}); + + +/* + * 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) { + return this.fire('locationerror', { + code: 0, + message: "Geolocation not supported." + }); + } + + 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 = + (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 diff --git a/lib/leaflet-dist/leaflet.css b/lib/leaflet-dist/leaflet.css new file mode 100644 index 0000000000..6817203d76 --- /dev/null +++ b/lib/leaflet-dist/leaflet.css @@ -0,0 +1,368 @@ +/* required styles */ + +.leaflet-map-pane, +.leaflet-tile, +.leaflet-marker-icon, +.leaflet-marker-shadow, +.leaflet-tile-pane, +.leaflet-overlay-pane, +.leaflet-shadow-pane, +.leaflet-marker-pane, +.leaflet-popup-pane, +.leaflet-overlay-pane svg, +.leaflet-zoom-box, +.leaflet-image-layer { /* TODO optimize classes */ + position: absolute; + } +.leaflet-container { + overflow: hidden; + } +.leaflet-tile, +.leaflet-marker-icon, +.leaflet-marker-shadow { + -moz-user-select: none; + -webkit-user-select: none; + user-select: none; + } +.leaflet-marker-icon, +.leaflet-marker-shadow { + display: block; + } +.leaflet-clickable { + cursor: pointer; + } +.leaflet-dragging, .leaflet-dragging .leaflet-clickable { + cursor: move; + } +.leaflet-container img { + /* map is broken in FF if you have max-width: 100% on tiles */ + max-width: none !important; + } +.leaflet-container img.leaflet-image-layer { + /* stupid Android 2 doesn't understand "max-width: none" properly */ + max-width: 15000px !important; + } + +.leaflet-tile-pane { z-index: 2; } +.leaflet-objects-pane { z-index: 3; } +.leaflet-overlay-pane { z-index: 4; } +.leaflet-shadow-pane { z-index: 5; } +.leaflet-marker-pane { z-index: 6; } +.leaflet-popup-pane { z-index: 7; } + +.leaflet-tile { + filter: inherit; + visibility: hidden; + } +.leaflet-tile-loaded { + visibility: inherit; + } + +.leaflet-zoom-box { + width: 0; + height: 0; + } + +/* Leaflet controls */ + +.leaflet-control { + position: relative; + z-index: 7; + } +.leaflet-top, +.leaflet-bottom { + position: absolute; + } +.leaflet-top { + top: 0; + } +.leaflet-right { + right: 0; + } +.leaflet-bottom { + bottom: 0; + } +.leaflet-left { + left: 0; + } +.leaflet-control { + float: left; + clear: both; + } +.leaflet-right .leaflet-control { + float: right; + } +.leaflet-top .leaflet-control { + margin-top: 10px; + } +.leaflet-bottom .leaflet-control { + margin-bottom: 10px; + } +.leaflet-left .leaflet-control { + margin-left: 10px; + } +.leaflet-right .leaflet-control { + margin-right: 10px; + } + +.leaflet-control-zoom { + -moz-border-radius: 7px; + -webkit-border-radius: 7px; + border-radius: 7px; + } +.leaflet-control-zoom { + padding: 5px; + background: rgba(0, 0, 0, 0.25); + } +.leaflet-control-zoom a { + background-color: rgba(255, 255, 255, 0.75); + } +.leaflet-control-zoom a, .leaflet-control-layers a { + background-position: 50% 50%; + background-repeat: no-repeat; + display: block; + } +.leaflet-control-zoom a { + -moz-border-radius: 4px; + -webkit-border-radius: 4px; + border-radius: 4px; + width: 19px; + height: 19px; + } +.leaflet-control-zoom a:hover { + background-color: #fff; + } +.leaflet-touch .leaflet-control-zoom a { + width: 27px; + height: 27px; + } +.leaflet-control-zoom-in { + background-image: url(images/zoom-in.png); + margin-bottom: 5px; + } +.leaflet-control-zoom-out { + background-image: url(images/zoom-out.png); + } + +.leaflet-control-layers { + box-shadow: 0 1px 7px #999; + background: #f8f8f9; + -moz-border-radius: 8px; + -webkit-border-radius: 8px; + border-radius: 8px; + } +.leaflet-control-layers a { + background-image: url(images/layers.png); + width: 36px; + height: 36px; + } +.leaflet-touch .leaflet-control-layers a { + width: 44px; + height: 44px; + } +.leaflet-control-layers .leaflet-control-layers-list, +.leaflet-control-layers-expanded .leaflet-control-layers-toggle { + display: none; + } +.leaflet-control-layers-expanded .leaflet-control-layers-list { + display: block; + position: relative; + } +.leaflet-control-layers-expanded { + padding: 6px 10px 6px 6px; + font: 12px/1.5 "Helvetica Neue", Arial, Helvetica, sans-serif; + color: #333; + background: #fff; + } +.leaflet-control-layers input { + margin-top: 2px; + position: relative; + top: 1px; + } +.leaflet-control-layers label { + display: block; + } +.leaflet-control-layers-separator { + height: 0; + border-top: 1px solid #ddd; + margin: 5px -10px 5px -6px; + } + +.leaflet-container .leaflet-control-attribution { + background-color: rgba(255, 255, 255, 0.7); + box-shadow: 0 0 5px #bbb; + margin: 0; + } + +.leaflet-control-attribution, +.leaflet-control-scale-line { + padding: 0 5px; + color: #333; + } + +.leaflet-container .leaflet-control-attribution, +.leaflet-container .leaflet-control-scale { + font: 11px/1.5 "Helvetica Neue", Arial, Helvetica, sans-serif; + } + +.leaflet-left .leaflet-control-scale { + margin-left: 5px; + } +.leaflet-bottom .leaflet-control-scale { + margin-bottom: 5px; + } + +.leaflet-control-scale-line { + border: 2px solid #777; + border-top: none; + color: black; + line-height: 1; + font-size: 10px; + padding-bottom: 2px; + text-shadow: 1px 1px 1px #fff; + background-color: rgba(255, 255, 255, 0.5); + } +.leaflet-control-scale-line:nth-child(2) { + border-top: 2px solid #777; + padding-top: 1px; + border-bottom: none; + margin-top: -2px; + } + +.leaflet-touch .leaflet-control-attribution, .leaflet-touch .leaflet-control-layers { + box-shadow: none; + } +.leaflet-touch .leaflet-control-layers { + border: 5px solid #bbb; + } + + +/* Zoom and fade animations */ + +.leaflet-fade-anim .leaflet-tile, .leaflet-fade-anim .leaflet-popup { + opacity: 0; + + -webkit-transition: opacity 0.2s linear; + -moz-transition: opacity 0.2s linear; + -o-transition: opacity 0.2s linear; + transition: opacity 0.2s linear; + } +.leaflet-fade-anim .leaflet-tile-loaded, .leaflet-fade-anim .leaflet-map-pane .leaflet-popup { + opacity: 1; + } + +.leaflet-zoom-anim .leaflet-zoom-animated { + -webkit-transition: -webkit-transform 0.25s cubic-bezier(0.25,0.1,0.25,0.75); + -moz-transition: -moz-transform 0.25s cubic-bezier(0.25,0.1,0.25,0.75); + -o-transition: -o-transform 0.25s cubic-bezier(0.25,0.1,0.25,0.75); + transition: transform 0.25s cubic-bezier(0.25,0.1,0.25,0.75); + } + +.leaflet-zoom-anim .leaflet-tile, +.leaflet-pan-anim .leaflet-tile, +.leaflet-touching .leaflet-zoom-animated { + -webkit-transition: none; + -moz-transition: none; + -o-transition: none; + transition: none; + } + +.leaflet-zoom-anim .leaflet-zoom-hide { + visibility: hidden; + } + + +/* Popup layout */ + +.leaflet-popup { + position: absolute; + text-align: center; + } +.leaflet-popup-content-wrapper { + padding: 1px; + text-align: left; + } +.leaflet-popup-content { + margin: 14px 20px; + } +.leaflet-popup-tip-container { + margin: 0 auto; + width: 40px; + height: 16px; + position: relative; + overflow: hidden; + } +.leaflet-popup-tip { + width: 15px; + height: 15px; + padding: 1px; + + margin: -8px auto 0; + + -moz-transform: rotate(45deg); + -webkit-transform: rotate(45deg); + -ms-transform: rotate(45deg); + -o-transform: rotate(45deg); + transform: rotate(45deg); + } +.leaflet-popup-close-button { + position: absolute; + top: 8px; + right: 8px; + + width: 10px; + height: 10px; + + overflow: hidden; + } +.leaflet-popup-content p { + margin: 18px 0; + } +.leaflet-popup-scrolled { + overflow: auto; + border-bottom: 1px solid #ddd; + border-top: 1px solid #ddd; + } + + +/* Visual appearance */ + +.leaflet-container { + background: #ddd; + } +.leaflet-container a { + color: #0078A8; + } +.leaflet-container a.leaflet-active { + outline: 2px solid orange; + } +.leaflet-zoom-box { + border: 2px dotted #05f; + background: white; + opacity: 0.5; + } +.leaflet-div-icon { + background: #fff; + border: 1px solid #666; + } +.leaflet-editing-icon { + border-radius: 2px; + } +.leaflet-popup-content-wrapper, .leaflet-popup-tip { + background: white; + + box-shadow: 0 3px 10px #888; + -moz-box-shadow: 0 3px 10px #888; + -webkit-box-shadow: 0 3px 14px #999; + } +.leaflet-popup-content-wrapper { + -moz-border-radius: 20px; + -webkit-border-radius: 20px; + border-radius: 20px; + } +.leaflet-popup-content { + font: 12px/1.4 "Helvetica Neue", Arial, Helvetica, sans-serif; + } +.leaflet-popup-close-button { + background: white url(images/popup-close.png); + } diff --git a/lib/leaflet-dist/leaflet.ie.css b/lib/leaflet-dist/leaflet.ie.css new file mode 100644 index 0000000000..27bc182109 --- /dev/null +++ b/lib/leaflet-dist/leaflet.ie.css @@ -0,0 +1,44 @@ +.leaflet-vml-shape { + width: 1px; + height: 1px; + } +.lvml { + behavior: url(#default#VML); + display: inline-block; + position: absolute; + } + +.leaflet-control { + display: inline; + } + +.leaflet-popup-tip { + width: 21px; + _width: 27px; + margin: 0 auto; + _margin-top: -3px; + + filter: progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678); + -ms-filter: "progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678)"; + } +.leaflet-popup-tip-container { + margin-top: -1px; + } +.leaflet-popup-content-wrapper, .leaflet-popup-tip { + border: 1px solid #bbb; + } + +.leaflet-control-zoom { + filter: progid:DXImageTransform.Microsoft.gradient(startColorStr='#3F000000',EndColorStr='#3F000000'); + } +.leaflet-control-zoom a { + background-color: #eee; + } +.leaflet-control-zoom a:hover { + background-color: #fff; + } +.leaflet-control-layers-toggle { + } +.leaflet-control-attribution, .leaflet-control-layers { + background: white; + } \ No newline at end of file diff --git a/lib/leaflet-dist/leaflet.js b/lib/leaflet-dist/leaflet.js new file mode 100644 index 0000000000..c4b06543e9 --- /dev/null +++ b/lib/leaflet-dist/leaflet.js @@ -0,0 +1,6 @@ +/* + Copyright (c) 2010-2012, CloudMade, Vladimir Agafonkin + Leaflet is a modern open-source JavaScript library for interactive maps. + http://leaflet.cloudmade.com +*/ +(function(e,t){var n,r;typeof exports!=t+""?n=exports:(r=e.L,n={},n.noConflict=function(){return e.L=r,this},e.L=n),n.version="0.4",n.Util={extend:function(e){var t=Array.prototype.slice.call(arguments,1);for(var 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":"")+t)},removeClass:function(e,t){function n(e,n){return n===t?"":e}e.className=e.className.replace(/(\S+)\s*/g,n).replace(/(^\s+|\s+$)/,"")},setOpacity:function(e,t){n.Browser.ie?e.style.filter+=t!==1?"alpha(opacity="+Math.round(t*100)+")":"":e.style.opacity=t},testProp:function(e){var t=document.documentElement.style;for(var n=0;n=t.lat&&s.lat<=r.lat&&i.lng>=t.lng&&s.lng<=r.lng},intersects:function(e){e=n.latLngBounds(e);var t=this._southWest,r=this._northEast,i=e.getSouthWest(),s=e.getNorthEast(),o=s.lat>=t.lat&&i.lat<=r.lat,u=s.lng>=t.lng&&i.lng<=r.lng;return o&&u},toBBoxString:function(){var e=this._southWest,t=this._northEast;return[e.lng,e.lat,t.lng,t.lat].join(",")},equals:function(e){return e?(e=n.latLngBounds(e),this._southWest.equals(e.getSouthWest())&&this._northEast.equals(e.getNorthEast())):!1}}),n.latLngBounds=function(e,t){return!e||e instanceof n.LatLngBounds?e:new n.LatLngBounds(e,t)},n.Projection={},n.Projection.SphericalMercator={MAX_LATITUDE:85.0511287798,project:function(e){var t=n.LatLng.DEG_TO_RAD,r=this.MAX_LATITUDE,i=Math.max(Math.min(r,e.lat),-r),s=e.lng*t,o=i*t;return o=Math.log(Math.tan(Math.PI/4+o/2)),new n.Point(s,o)},unproject:function(e){var t=n.LatLng.RAD_TO_DEG,r=e.x*t,i=(2*Math.atan(Math.exp(e.y))-Math.PI/2)*t;return new n.LatLng(i,r,!0)}},n.Projection.LonLat={project:function(e){return new n.Point(e.lng,e.lat)},unproject:function(e){return new n.LatLng(e.y,e.x,!0)}},n.CRS={latLngToPoint:function(e,t){var n=this.projection.project(e),r=this.scale(t);return this.transformation._transform(n,r)},pointToLatLng:function(e,t){var n=this.scale(t),r=this.transformation.untransform(e,n);return this.projection.unproject(r)},project:function(e){return this.projection.project(e)},scale:function(e){return 256*Math.pow(2,e)}},n.CRS.EPSG3857=n.Util.extend({},n.CRS,{code:"EPSG:3857",projection:n.Projection.SphericalMercator,transformation:new n.Transformation(.5/Math.PI,.5,-0.5/Math.PI,.5),project:function(e){var t=this.projection.project(e),n=6378137;return t.multiplyBy(n)}}),n.CRS.EPSG900913=n.Util.extend({},n.CRS.EPSG3857,{code:"EPSG:900913"}),n.CRS.EPSG4326=n.Util.extend({},n.CRS,{code:"EPSG:4326",projection:n.Projection.LonLat,transformation:new n.Transformation(1/360,.5,-1/360,.5)}),n.Map=n.Class.extend({includes:n.Mixin.Events,options:{crs:n.CRS.EPSG3857,fadeAnimation:n.DomUtil.TRANSITION&&!n.Browser.android23,trackResize:!0,markerZoomAnimation:n.DomUtil.TRANSITION&&n.Browser.any3d},initialize:function(e,r){r=n.Util.setOptions(this,r),this._initContainer(e),this._initLayout(),this._initHooks(),this._initEvents(),r.maxBounds&&this.setMaxBounds(r.maxBounds),r.center&&r.zoom!==t&&this.setView(n.latLng(r.center),r.zoom,!0),this._initLayers(r.layers)},setView:function(e,t){return this._resetView(n.latLng(e),this._limitZoom(t)),this},setZoom:function(e){return this.setView(this.getCenter(),e)},zoomIn:function(){return this.setZoom(this._zoom+1)},zoomOut:function(){return this.setZoom(this._zoom-1)},fitBounds:function(e){var t=this.getBoundsZoom(e);return this.setView(n.latLngBounds(e).getCenter(),t)},fitWorld:function(){var e=new n.LatLng(-60,-170),t=new n.LatLng(85,179);return this.fitBounds(new n.LatLngBounds(e,t))},panTo:function(e){return this.setView(e,this._zoom)},panBy:function(e){return this.fire("movestart"),this._rawPanBy(n.point(e)),this.fire("move"),this.fire("moveend")},setMaxBounds:function(e){e=n.latLngBounds(e),this.options.maxBounds=e;if(!e)return this._boundsMinZoom=null,this;var t=this.getBoundsZoom(e,!0);return this._boundsMinZoom=t,this._loaded&&(this._zoomo.x&&(u=o.x-i.x),r.y>s.y&&(a=s.y-r.y),r.xc&&--h>0)d=u*Math.sin(f),p=Math.PI/2-2*Math.atan(a*Math.pow((1-d)/(1+d),.5*u))-f,f+=p;return new n.LatLng(f*t,s,!0)}},n.CRS.EPSG3395=n.Util.extend({},n.CRS,{code:"EPSG:3395",projection:n.Projection.Mercator,transformation:function(){var e=n.Projection.Mercator,t=e.R_MAJOR,r=e.R_MINOR;return new n.Transformation(.5/(Math.PI*t),.5,-0.5/(Math.PI*r),.5)}()}),n.TileLayer=n.Class.extend({includes:n.Mixin.Events,options:{minZoom:0,maxZoom:18,tileSize:256,subdomains:"abc",errorTileUrl:"",attribution:"",opacity:1,scheme:"xyz",continuousWorld:!1,noWrap:!1,zoomOffset:0,zoomReverse:!1,detectRetina:!1,unloadInvisibleTiles:n.Browser.mobile,updateWhenIdle:n.Browser.mobile,reuseTiles:!1},initialize:function(t,r){r=n.Util.setOptions(this,r),r.detectRetina&&e.devicePixelRatio>1&&r.maxZoom>0&&(r.tileSize=Math.floor(r.tileSize/2),r.zoomOffset++,r.minZoom>0&&r.minZoom--,this.options.maxZoom--),this._url=t;var i=this.options.subdomains;typeof i=="string"&&(this.options.subdomains=i.split(""))},onAdd:function(e,t){this._map=e,this._insertAtTheBottom=t,this._initContainer(),this._createTileProto(),e.on({viewreset:this._resetCallback,moveend:this._update},this),this.options.updateWhenIdle||(this._limitedUpdate=n.Util.limitExecByInterval(this._update,150,this),e.on("move",this._limitedUpdate,this)),this._reset(),this._update()},addTo:function(e){return e.addLayer(this),this},onRemove:function(e){e._panes.tilePane.removeChild(this._container),e.off({viewreset:this._resetCallback,moveend:this._update},this),this.options.updateWhenIdle||e.off("move",this._limitedUpdate,this),this._container=null,this._map=null},bringToFront:function(){this._container&&this._map._panes.tilePane.appendChild(this._container)},bringToBack:function(){var e=this._map._panes.tilePane;this._container&&e.insertBefore(this._container,e.firstChild)},getAttribution:function(){return this.options.attribution},setOpacity:function(e){this.options.opacity=e,this._map&&this._updateOpacity()},_updateOpacity:function(){n.DomUtil.setOpacity(this._container,this.options.opacity);var e,t=this._tiles;if(n.Browser.webkit)for(e in t)t.hasOwnProperty(e)&&(t[e].style.webkitTransform+=" translate(0,0)")},_initContainer:function(){var e=this._map._panes.tilePane,t=e.firstChild;if(!this._container||e.empty)this._container=n.DomUtil.create("div","leaflet-layer"),this._insertAtTheBottom&&t?e.insertBefore(this._container,t):e.appendChild(this._container),this.options.opacity<1&&this._updateOpacity()},_resetCallback:function(e){this._reset(e.hard)},_reset:function(e){var t,n=this._tiles;for(t in n)n.hasOwnProperty(t)&&this.fire("tileunload",{tile:n[t]});this._tiles={},this.options.reuseTiles&&(this._unusedTiles=[]),e&&this._container&&(this._container.innerHTML=""),this._initContainer()},_update:function(e){if(this._map._panTransition&&this._map._panTransition._inProgress)return;var t=this._map.getPixelBounds(),r=this._map.getZoom(),i=this.options.tileSize;if(r>this.options.maxZoom||re.max.x||re.max.y)&&this._removeTile(i))},_removeTile:function(e){var t=this._tiles[e];this.fire("tileunload",{tile:t,url:t.src}),this.options.reuseTiles?(n.DomUtil.removeClass(t,"leaflet-tile-loaded"),this._unusedTiles.push(t)):t.parentNode===this._container&&this._container.removeChild(t),t.src=n.Util.emptyImageUrl,delete this._tiles[e]},_addTile:function(e,t){var r=this._getTilePos(e),i=this._map.getZoom(),s=e.x+":"+e.y,o=Math.pow(2,this._getOffsetZoom(i));if(!this.options.continuousWorld){if(!this.options.noWrap)e.x=(e.x%o+o)%o;else if(e.x<0||e.x>=o){this._tilesToLoad--;return}if(e.y<0||e.y>=o){this._tilesToLoad--;return}}var u=this._getTile();n.DomUtil.setPosition(u,r,!0),this._tiles[s]=u,this.options.scheme==="tms"&&(e.y=o-e.y-1),this._loadTile(u,e,i),u.parentNode!==this._container&&t.appendChild(u)},_getOffsetZoom:function(e){var t=this.options;return e=t.zoomReverse?t.maxZoom-e:e,e+t.zoomOffset},_getTilePos:function(e){var t=this._map.getPixelOrigin(),n=this.options.tileSize;return e.multiplyBy(n).subtract(t)},getTileUrl:function(e,t){var r=this.options.subdomains,i=(e.x+e.y)%r.length,s=this.options.subdomains[i];return n.Util.template(this._url,n.Util.extend({s:s,z:this._getOffsetZoom(t),x:e.x,y:e.y},this.options))},_createTileProto:function(){var e=this._tileImg=n.DomUtil.create("img","leaflet-tile");e.galleryimg="no";var t=this.options.tileSize;e.style.width=t+"px",e.style.height=t+"px"},_getTile:function(){if(this.options.reuseTiles&&this._unusedTiles.length>0){var e=this._unusedTiles.pop();return this._resetTile(e),e}return this._createTile()},_resetTile:function(e){},_createTile:function(){var e=this._tileImg.cloneNode(!1);return e.onselectstart=e.onmousemove=n.Util.falseFn,e},_loadTile:function(e,t,n){e._layer=this,e.onload=this._tileOnLoad,e.onerror=this._tileOnError,e.src=this.getTileUrl(t,n)},_tileLoaded:function(){this._tilesToLoad--,this._tilesToLoad||this.fire("load")},_tileOnLoad:function(e){var t=this._layer;this.src!==n.Util.emptyImageUrl&&(n.DomUtil.addClass(this,"leaflet-tile-loaded"),t.fire("tileload",{tile:this,url:this.src})),t._tileLoaded()},_tileOnError:function(e){var t=this._layer;t.fire("tileerror",{tile:this,url:this.src});var n=t.options.errorTileUrl;n&&(this.src=n),t._tileLoaded()}}),n.tileLayer=function(e,t){return new n.TileLayer(e,t)},n.TileLayer.WMS=n.TileLayer.extend({defaultWmsParams:{service:"WMS",request:"GetMap",version:"1.1.1",layers:"",styles:"",format:"image/jpeg",transparent:!1},initialize:function(e,t){this._url=e;var r=n.Util.extend({},this.defaultWmsParams);r.width=r.height=this.options.tileSize;for(var i in t)this.options.hasOwnProperty(i)||(r[i]=t[i]);this.wmsParams=r,n.Util.setOptions(this,t)},onAdd:function(e,t){var r=parseFloat(this.wmsParams.version)>=1.3?"crs":"srs";this.wmsParams[r]=e.options.crs.code,n.TileLayer.prototype.onAdd.call(this,e,t)},getTileUrl:function(e,t){var r=this._map,i=r.options.crs,s=this.options.tileSize,o=e.multiplyBy(s),u=o.add(new n.Point(s,s)),a=r.unproject(o,t),f=r.unproject(u,t),l=i.project(a),c=i.project(f),h=[l.x,c.y,c.x,l.y].join(",");return this._url+n.Util.getParamString(this.wmsParams)+"&bbox="+h}}),n.tileLayer.wms=function(e,t){return new n.TileLayer(e,t)},n.TileLayer.Canvas=n.TileLayer.extend({options:{async:!1},initialize:function(e){n.Util.setOptions(this,e)},redraw:function(){var e,t=this._tiles;for(e in t)t.hasOwnProperty(e)&&this._redrawTile(t[e])},_redrawTile:function(e){this.drawTile(e,e._tilePoint,e._zoom)},_createTileProto:function(){var e=this._canvasProto=n.DomUtil.create("canvas","leaflet-tile"),t=this.options.tileSize;e.width=t,e.height=t},_createTile:function(){var e=this._canvasProto.cloneNode(!1);return e.onselectstart=e.onmousemove=n.Util.falseFn,e},_loadTile:function(e,t,n){e._layer=this,e._tilePoint=t,e._zoom=n,this.drawTile(e,t,n),this.options.async||this.tileDrawn(e)},drawTile:function(e,t,n){},tileDrawn:function(e){this._tileOnLoad.call(e)}}),n.tileLayer.canvas=function(e){return new n.TileLayer.Canvas(e)},n.ImageOverlay=n.Class.extend({includes:n.Mixin.Events,options:{opacity:1},initialize:function(e,t,r){this._url=e,this._bounds=n.latLngBounds(t),n.Util.setOptions(this,r)},onAdd:function(e){this._map=e,this._image||this._initImage(),e._panes.overlayPane.appendChild(this._image),e.on("viewreset",this._reset,this),e.options.zoomAnimation&&n.Browser.any3d&&e.on("zoomanim",this._animateZoom,this),this._reset()},onRemove:function(e){e.getPanes().overlayPane.removeChild(this._image),e.off("viewreset",this._reset,this),e.options.zoomAnimation&&e.off("zoomanim",this._animateZoom,this)},addTo:function(e){return e.addLayer(this),this},setOpacity:function(e){this.options.opacity=e,this._updateOpacity()},_initImage:function(){this._image=n.DomUtil.create("img","leaflet-image-layer"),this._map.options.zoomAnimation&&n.Browser.any3d?n.DomUtil.addClass(this._image,"leaflet-zoom-animated"):n.DomUtil.addClass(this._image,"leaflet-zoom-hide"),this._updateOpacity(),n.Util.extend(this._image,{galleryimg:"no",onselectstart:n.Util.falseFn,onmousemove:n.Util.falseFn,onload:n.Util.bind(this._onImageLoad,this),src:this._url})},_animateZoom:function(e){var t=this._map,r=this._image,i=t.getZoomScale(e.zoom),s=this._bounds.getNorthWest(),o=this._bounds.getSouthEast(),u=t._latLngToNewLayerPoint(s,e.zoom,e.center),a=t._latLngToNewLayerPoint(o,e.zoom,e.center).subtract(u),f=t.latLngToLayerPoint(o).subtract(t.latLngToLayerPoint(s)),l=u.add(a.subtract(f).divideBy(2));r.style[n.DomUtil.TRANSFORM]=n.DomUtil.getTranslateString(l)+" scale("+i+") "},_reset:function(){var e=this._image,t=this._map.latLngToLayerPoint(this._bounds.getNorthWest()),r=this._map.latLngToLayerPoint(this._bounds.getSouthEast()).subtract(t);n.DomUtil.setPosition(e,t),e.style.width=r.x+"px",e.style.height=r.y+"px"},_onImageLoad:function(){this.fire("load")},_updateOpacity:function(){n.DomUtil.setOpacity(this._image,this.options.opacity)}}),n.imageOverlay=function(e,t,r){return new n.ImageOverlay(e,t,r)},n.Icon=n.Class.extend({options:{className:""},initialize:function(e){n.Util.setOptions(this,e)},createIcon:function(){return this._createIcon("icon")},createShadow:function(){return this._createIcon("shadow")},_createIcon:function(e){var t=this._getIconUrl(e);if(!t){if(e==="icon")throw Error("iconUrl not set in Icon options (see the docs).");return null}var n=this._createImg(t);return this._setIconStyles(n,e),n},_setIconStyles:function(e,t){var r=this.options,i=n.point(r[t+"Size"]),s=n.point(r.iconAnchor),o=n.point(r.shadowOffset);!s&&i&&(s=i.divideBy(2,!0)),t==="shadow"&&s&&o&&(s=s.add(o)),e.className="leaflet-marker-"+t+" "+r.className,s&&(e.style.marginLeft=-s.x+"px",e.style.marginTop=-s.y+"px"),i&&(e.style.width=i.x+"px",e.style.height=i.y+"px")},_createImg:function(e){var t;return n.Browser.ie6?(t=document.createElement("div"),t.style.filter='progid:DXImageTransform.Microsoft.AlphaImageLoader(src="'+e+'")'):(t=document.createElement("img"),t.src=e),t},_getIconUrl:function(e){return this.options[e+"Url"]}}),n.icon=function(e){return new n.Icon(e)},n.Icon.Default=n.Icon.extend({options:{iconSize:new n.Point(25,41),iconAnchor:new n.Point(13,41),popupAnchor:new n.Point(0,-33),shadowSize:new n.Point(41,41)},_getIconUrl:function(e){var t=e+"Url";if(this.options[t])return this.options[t];var r=n.Icon.Default.imagePath;if(!r)throw Error("Couldn't autodetect L.Icon.Default.imagePath, set it manually.");return r+"/marker-"+e+".png"}}),n.Icon.Default.imagePath=function(){var e=document.getElementsByTagName("script"),t=/\/?leaflet[\-\._]?([\w\-\._]*)\.js\??/,n,r,i,s;for(n=0,r=e.length;ns?(t.height=s+"px",n.DomUtil.addClass(e,o)):n.DomUtil.removeClass(e,o),this._containerWidth=this._container.offsetWidth},_updatePosition:function(){var e=this._map.latLngToLayerPoint(this._latlng),t=n.Browser.any3d,r=this.options.offset;t&&n.DomUtil.setPosition(this._container,e),this._containerBottom=-r.y-(t?0:e.y),this._containerLeft=-Math.round(this._containerWidth/2)+r.x+(t?0:e.x),this._container.style.bottom=this._containerBottom+"px",this._container.style.left=this._containerLeft+"px"},_zoomAnimation:function(e){var t=this._map._latLngToNewLayerPoint(this._latlng,e.zoom,e.center)._round();n.DomUtil.setPosition(this._container,t)},_adjustPan:function(){if(!this.options.autoPan)return;var e=this._map,t=this._container.offsetHeight,r=this._containerWidth,i=new n.Point(this._containerLeft,-t-this._containerBottom);n.Browser.any3d&&i._add(n.DomUtil.getPosition(this._container));var s=e.layerPointToContainerPoint(i),o=this.options.autoPanPadding,u=e.getSize(),a=0,f=0;s.x<0&&(a=s.x-o.x),s.x+r>u.x&&(a=s.x+r-u.x+o.x),s.y<0&&(f=s.y-o.y),s.y+t>u.y&&(f=s.y+t-u.y+o.y),(a||f)&&e.panBy(new n.Point(a,f))},_onCloseButtonClick:function(e){this._close(),n.DomEvent.stop(e)}}),n.popup=function(e,t){return new n.Popup(e,t)},n.Marker.include({openPopup:function(){return this._popup&&this._map&&(this._popup.setLatLng(this._latlng),this._map.openPopup(this._popup)),this},closePopup:function(){return this._popup&&this._popup._close(),this},bindPopup:function(e,t){var r=this.options.icon.options.popupAnchor||new n.Point(0,0);return t&&t.offset&&(r=r.add(t.offset)),t=n.Util.extend({offset:r},t),this._popup||this.on("click",this.openPopup,this),this._popup=(new n.Popup(t,this)).setContent(e),this},unbindPopup:function(){return this._popup&&(this._popup=null,this.off("click",this.openPopup)),this}}),n.Map.include({openPopup:function(e){return this.closePopup(),this._popup=e,this.addLayer(e).fire("popupopen",{popup:this._popup})},closePopup:function(){return this._popup&&this._popup._close(),this}}),n.LayerGroup=n.Class.extend({initialize:function(e){this._layers={};var t,n;if(e)for(t=0,n=e.length;t';var t=e.firstChild;return t.style.behavior="url(#default#VML)",t&&typeof t.adj=="object"}(),n.Path=n.Browser.svg||!n.Browser.vml?n.Path:n.Path.extend({statics:{VML:!0,CLIP_PADDING:.02},_createElement:function(){try{return document.namespaces.add("lvml","urn:schemas-microsoft-com:vml"),function(e){return document.createElement("')}}catch(e){return function(e){return document.createElement("<"+e+' xmlns="urn:schemas-microsoft.com:vml" class="lvml">')}}}(),_initPath:function(){var e=this._container=this._createElement("shape");n.DomUtil.addClass(e,"leaflet-vml-shape"),this.options.clickable&&n.DomUtil.addClass(e,"leaflet-clickable"),e.coordsize="1 1",this._path=this._createElement("path"),e.appendChild(this._path),this._map._pathRoot.appendChild(e)},_initStyle:function(){this._updateStyle()},_updateStyle:function(){var e=this._stroke,t=this._fill,n=this.options,r=this._container;r.stroked=n.stroke,r.filled=n.fill,n.stroke?(e||(e=this._stroke=this._createElement("stroke"),e.endcap="round",r.appendChild(e)),e.weight=n.weight+"px",e.color=n.color,e.opacity=n.opacity):e&&(r.removeChild(e),this._stroke=null),n.fill?(t||(t=this._fill=this._createElement("fill"),r.appendChild(t)),t.color=n.fillColor||n.color,t.opacity=n.fillOpacity):t&&(r.removeChild(t),this._fill=null)},_updatePath:function(){var e=this._container.style;e.display="none",this._path.v=this.getPathString()+" ",e.display=""}}),n.Map.include(n.Browser.svg||!n.Browser.vml?{}:{_initPathRoot:function(){if(this._pathRoot)return;var e=this._pathRoot=document.createElement("div");e.className="leaflet-vml-container",this._panes.overlayPane.appendChild(e),this.on("moveend",this._updatePathViewport),this._updatePathViewport()}}),n.Browser.canvas=function(){return!!document.createElement("canvas").getContext}(),n.Path=n.Path.SVG&&!e.L_PREFER_CANVAS||!n.Browser.canvas?n.Path:n.Path.extend({statics:{CANVAS:!0,SVG:!1},_initElements:function(){this._map._initPathRoot(),this._ctx=this._map._canvasCtx},_updateStyle:function(){var e=this.options;e.stroke&&(this._ctx.lineWidth=e.weight,this._ctx.strokeStyle=e.color),e.fill&&(this._ctx.fillStyle=e.fillColor||e.color)},_drawPath:function(){var e,t,r,i,s,o;this._ctx.beginPath();for(e=0,r=this._parts.length;es&&(o=u,s=a);s>n&&(t[o]=1,this._simplifyDPStep(e,t,n,r,o),this._simplifyDPStep(e,t,n,o,i))},_reducePoints:function(e,t){var n=[e[0]];for(var r=1,i=0,s=e.length;rt&&(n.push(e[r]),i=r);return it.max.x&&(n|=2),e.yt.max.y&&(n|=8),n},_sqDist:function(e,t){var n=t.x-e.x,r=t.y-e.y;return n*n+r*r},_sqClosestPointOnSegment:function(e,t,r,i){var s=t.x,o=t.y,u=r.x-s,a=r.y-o,f=u*u+a*a,l;return f>0&&(l=((e.x-s)*u+(e.y-o)*a)/f,l>1?(s=r.x,o=r.y):l>0&&(s+=u*l,o+=a*l)),u=e.x-s,a=e.y-o,i?u*u+a*a:new n.Point(s,o)}},n.Polyline=n.Path.extend({initialize:function(e,t){n.Path.prototype.initialize.call(this,t),this._latlngs=e,n.Handler.PolyEdit&&(this.editing=new n.Handler.PolyEdit(this),this.options.editable&&this.editing.enable())},options:{smoothFactor:1,noClip:!1},projectLatlngs:function(){this._originalPoints=[];for(var e=0,t=this._latlngs.length;ee.max.x||n.y-t>e.max.y||n.x+te.y!=s.y>e.y&&e.x<(s.x-i.x)*(e.y-i.y)/(s.y-i.y)+i.x&&(t=!t)}return t}}:{}),n.Circle.include(n.Path.CANVAS?{_drawPath:function(){var e=this._point;this._ctx.beginPath(),this._ctx.arc(e.x,e.y,this._radius,0,Math.PI*2,!1)},_containsPoint:function(e){var t=this._point,n=this.options.stroke?this.options.weight/2:0;return e.distanceTo(t)<=this._radius+n}}:{}),n.GeoJSON=n.FeatureGroup.extend({initialize:function(e,t){n.Util.setOptions(this,t),this._layers={},e&&this.addData(e)},addData:function(e){var t=e.features,r,i;if(t){for(r=0,i=t.length;r1){this._simulateClick=!1;return}var t=e.touches&&e.touches.length===1?e.touches[0]:e,r=t.target;n.DomEvent.preventDefault(e),n.Browser.touch&&r.tagName.toLowerCase()==="a"&&n.DomUtil.addClass(r,"leaflet-active"),this._moved=!1;if(this._moving)return;n.Browser.touch||(n.DomUtil.disableTextSelection(),this._setMovingCursor()),this._startPos=this._newPos=n.DomUtil.getPosition(this._element),this._startPoint=new n.Point(t.clientX,t.clientY),n.DomEvent.on(document,n.Draggable.MOVE,this._onMove,this),n.DomEvent.on(document,n.Draggable.END,this._onUp,this)},_onMove:function(e){if(e.touches&&e.touches.length>1)return;var t=e.touches&&e.touches.length===1?e.touches[0]:e,r=new n.Point(t.clientX,t.clientY),i=r.subtract(this._startPoint);if(!i.x&&!i.y)return;n.DomEvent.preventDefault(e),this._moved||(this.fire("dragstart"),this._moved=!0),this._newPos=this._startPos.add(i),this._moving=!0,n.Util.cancelAnimFrame(this._animRequest),this._animRequest=n.Util.requestAnimFrame(this._updatePosition,this,!0,this._dragStartTarget)},_updatePosition:function(){this.fire("predrag"),n.DomUtil.setPosition(this._element,this._newPos),this.fire("drag")},_onUp:function(e){if(this._simulateClick&&e.changedTouches){var t=e.changedTouches[0],r=t.target,i=this._newPos&&this._newPos.distanceTo(this._startPos)||0;r.tagName.toLowerCase()==="a"&&n.DomUtil.removeClass(r,"leaflet-active"),i200&&(this._positions.shift(),this._times.shift())}this._map.fire("move").fire("drag")},_onViewReset:function(){var e=this._map.getSize().divideBy(2),t=this._map.latLngToLayerPoint(new n.LatLng(0,0));this._initialWorldOffset=t.subtract(e)},_onPreDrag:function(){var e=this._map,t=e.options.crs.scale(e.getZoom()),n=Math.round(t/2),r=this._initialWorldOffset.x,i=this._draggable._newPos.x,s=(i-n+r)%t+n-r,o=(i+n+r)%t-n-r,u=Math.abs(s+r)r.inertiaThreshold||this._positions[0]===t;if(s)e.fire("moveend");else{var o=this._lastPos.subtract(this._positions[0]),u=(this._lastTime+i-this._times[0])/1e3,a=o.multiplyBy(.58/u),f=a.distanceTo(new n.Point(0,0)),l=Math.min(r.inertiaMaxSpeed,f),c=a.multiplyBy(l/f),h=l/r.inertiaDeceleration,p=c.multiplyBy(-h/2).round(),d={duration:h,easing:"ease-out"};n.Util.requestAnimFrame(n.Util.bind(function(){this._map.panBy(p,d)},this))}e.fire("dragend"),r.maxBounds&&n.Util.requestAnimFrame(this._panInsideMaxBounds,e,!0,e._container)},_panInsideMaxBounds:function(){this.panInsideBounds(this.options.maxBounds)}}),n.Map.addInitHook("addHandler","dragging",n.Map.Drag),n.Map.mergeOptions({doubleClickZoom:!0}),n.Map.DoubleClickZoom=n.Handler.extend({addHooks:function(){this._map.on("dblclick",this._onDoubleClick)},removeHooks:function(){this._map.off("dblclick",this._onDoubleClick)},_onDoubleClick:function(e){this.setView(e.latlng,this._zoom+1)}}),n.Map.addInitHook("addHandler","doubleClickZoom",n.Map.DoubleClickZoom),n.Map.mergeOptions({scrollWheelZoom:!n.Browser.touch}),n.Map.ScrollWheelZoom=n.Handler.extend({addHooks:function(){n.DomEvent.on(this._map._container,"mousewheel",this._onWheelScroll,this),this._delta=0},removeHooks:function(){n.DomEvent.off(this._map._container,"mousewheel",this._onWheelScroll)},_onWheelScroll:function(e){var t=n.DomEvent.getWheelDelta(e);this._delta+=t,this._lastMousePos=this._map.mouseEventToContainerPoint(e),clearTimeout(this._timer),this._timer=setTimeout(n.Util.bind(this._performZoom,this),50),n.DomEvent.preventDefault(e)},_performZoom:function(){var e=this._map,t=Math.round(this._delta),n=e.getZoom();t=Math.max(Math.min(t,4),-4),t=e._limitZoom(n+t)-n,this._delta=0;if(!t)return;var r=n+t,i=this._getCenterForScrollWheelZoom(this._lastMousePos,r);e.setView(i,r)},_getCenterForScrollWheelZoom:function(e,t){var n=this._map,r=n.getZoomScale(t),i=n.getSize().divideBy(2),s=e.subtract(i).multiplyBy(1-1/r),o=n._getTopLeftPoint().add(i).add(s);return n.unproject(o)}}),n.Map.addInitHook("addHandler","scrollWheelZoom",n.Map.ScrollWheelZoom),n.Util.extend(n.DomEvent,{addDoubleTapListener:function(e,t,n){function l(e){if(e.touches.length!==1)return;var t=Date.now(),n=t-(r||t);o=e.touches[0],i=n>0&&n<=s,r=t}function c(e){i&&(o.type="dblclick",t(o),r=null)}var r,i=!1,s=250,o,u="_leaflet_",a="touchstart",f="touchend";e[u+a+n]=l,e[u+f+n]=c,e.addEventListener(a,l,!1),e.addEventListener(f,c,!1)},removeDoubleTapListener:function(e,t){var n="_leaflet_";e.removeEventListener(e,e[n+"touchstart"+t],!1),e.removeEventListener(e,e[n+"touchend"+t],!1)}}),n.Map.mergeOptions({touchZoom:n.Browser.touch&&!n.Browser.android23}),n.Map.TouchZoom=n.Handler.extend({addHooks:function(){n.DomEvent.on(this._map._container,"touchstart",this._onTouchStart,this)},removeHooks:function(){n.DomEvent.off(this._map._container,"touchstart",this._onTouchStart,this)},_onTouchStart:function(e){var t=this._map;if(!e.touches||e.touches.length!==2||t._animatingZoom||this._zooming)return;var r=t.mouseEventToLayerPoint(e.touches[0]),i=t.mouseEventToLayerPoint(e.touches[1]),s=t._getCenterLayerPoint();this._startCenter=r.add(i).divideBy(2,!0),this._startDist=r.distanceTo(i),this._moved=!1,this._zooming=!0,this._centerOffset=s.subtract(this._startCenter),n.DomEvent.on(document,"touchmove",this._onTouchMove,this).on(document,"touchend",this._onTouchEnd,this),n.DomEvent.preventDefault(e)},_onTouchMove:function(e){if(!e.touches||e.touches.length!==2)return;var t=this._map,r=t.mouseEventToLayerPoint(e.touches[0]),i=t.mouseEventToLayerPoint(e.touches[1]);this._scale=r.distanceTo(i)/this._startDist,this._delta=r.add(i).divideBy(2,!0).subtract(this._startCenter);if(this._scale===1)return;this._moved||(n.DomUtil.addClass(t._mapPane,"leaflet-zoom-anim leaflet-touching"),t.fire("movestart").fire("zoomstart")._prepareTileBg(),this._moved=!0);var s=this._getScaleOrigin(),o=t.layerPointToLatLng(s);t.fire("zoomanim",{center:o,zoom:t.getScaleZoom(this._scale)}),t._tileBg.style[n.DomUtil.TRANSFORM]=n.DomUtil.getTranslateString(this._delta)+" "+n.DomUtil.getScaleString(this._scale,this._startCenter),n.DomEvent.preventDefault(e)},_onTouchEnd:function(e){if(!this._moved||!this._zooming)return;var t=this._map;this._zooming=!1,n.DomUtil.removeClass(t._mapPane,"leaflet-touching"),n.DomEvent.off(document,"touchmove",this._onTouchMove).off(document,"touchend",this._onTouchEnd);var r=this._getScaleOrigin(),i=t.layerPointToLatLng(r),s=t.getZoom(),o=t.getScaleZoom(this._scale)-s,u=o>0?Math.ceil(o):Math.floor(o),a=t._limitZoom(s+u);t.fire("zoomanim",{center:i,zoom:a}),t._runAnimation(i,a,t.getZoomScale(a)/this._scale,r,!0)},_getScaleOrigin:function(){var e=this._centerOffset.subtract(this._delta).divideBy(this._scale);return this._startCenter.add(e)}}),n.Map.addInitHook("addHandler","touchZoom",n.Map.TouchZoom),n.Map.mergeOptions({boxZoom:!0}),n.Map.BoxZoom=n.Handler.extend({initialize:function(e){this._map=e,this._container=e._container,this._pane=e._panes.overlayPane},addHooks:function(){n.DomEvent.on(this._container,"mousedown",this._onMouseDown,this)},removeHooks:function(){n.DomEvent.off(this._container,"mousedown",this._onMouseDown)},_onMouseDown:function(e){if(!e.shiftKey||e.which!==1&&e.button!==1)return!1;n.DomUtil.disableTextSelection(),this._startLayerPoint=this._map.mouseEventToLayerPoint(e),this._box=n.DomUtil.create("div","leaflet-zoom-box",this._pane),n.DomUtil.setPosition(this._box,this._startLayerPoint),this._container.style.cursor="crosshair",n.DomEvent.on(document,"mousemove",this._onMouseMove,this).on(document,"mouseup",this._onMouseUp,this).preventDefault(e),this._map.fire("boxzoomstart")},_onMouseMove:function(e){var t=this._startLayerPoint,r=this._box,i=this._map.mouseEventToLayerPoint(e),s=i.subtract(t),o=new n.Point(Math.min(i.x,t.x),Math.min(i.y,t.y));n.DomUtil.setPosition(r,o),r.style.width=Math.abs(s.x)-4+"px",r.style.height=Math.abs(s.y)-4+"px"},_onMouseUp:function(e){this._pane.removeChild(this._box),this._container.style.cursor="",n.DomUtil.enableTextSelection(),n.DomEvent.off(document,"mousemove",this._onMouseMove).off(document,"mouseup",this._onMouseUp);var t=this._map,r=t.mouseEventToLayerPoint(e),i=new n.LatLngBounds(t.layerPointToLatLng(this._startLayerPoint),t.layerPointToLatLng(r));t.fitBounds(i),t.fire("boxzoomend",{boxZoomBounds:i})}}),n.Map.addInitHook("addHandler","boxZoom",n.Map.BoxZoom),n.Handler.MarkerDrag=n.Handler.extend({initialize:function(e){this._marker=e},addHooks:function(){var e=this._marker._icon;this._draggable||(this._draggable=(new n.Draggable(e,e)).on("dragstart",this._onDragStart,this).on("drag",this._onDrag,this).on("dragend",this._onDragEnd,this)),this._draggable.enable()},removeHooks:function(){this._draggable.disable()},moved:function(){return this._draggable&&this._draggable._moved},_onDragStart:function(e){this._marker.closePopup().fire("movestart").fire("dragstart")},_onDrag:function(e){var t=n.DomUtil.getPosition(this._marker._icon);this._marker._shadow&&n.DomUtil.setPosition(this._marker._shadow,t),this._marker._latlng=this._marker._map.layerPointToLatLng(t),this._marker.fire("move").fire("drag")},_onDragEnd:function(){this._marker.fire("moveend").fire("dragend")}}),n.Handler.PolyEdit=n.Handler.extend({options:{icon:new n.DivIcon({iconSize:new n.Point(8,8),className:"leaflet-div-icon leaflet-editing-icon"})},initialize:function(e,t){this._poly=e,n.Util.setOptions(this,t)},addHooks:function(){this._poly._map&&(this._markerGroup||this._initMarkers(),this._poly._map.addLayer(this._markerGroup))},removeHooks:function(){this._poly._map&&(this._poly._map.removeLayer(this._markerGroup),delete this._markerGroup,delete this._markers)},updateMarkers:function(){this._markerGroup.clearLayers(),this._initMarkers()},_initMarkers:function(){this._markerGroup||(this._markerGroup=new n.LayerGroup),this._markers=[];var e=this._poly._latlngs,t,r,i,s;for(t=0,i=e.length;te&&(n._index+=t)})},_createMiddleMarker:function(e,t){var n=this._getMiddleLatLng(e,t),r=this._createMarker(n),i,s,o;r.setOpacity(.6),e._middleRight=t._middleLeft=r,s=function(){var s=t._index;r._index=s,r.off("click",i).on("click",this._onMarkerClick,this),n.lat=r.getLatLng().lat,n.lng=r.getLatLng().lng,this._poly.spliceLatLngs(s,0,n),this._markers.splice(s,0,r),r.setOpacity(1),this._updateIndexes(s,1),t._index++,this._updatePrevNext(e,r),this._updatePrevNext(r,t)},o=function(){r.off("dragstart",s,this),r.off("dragend",o,this),this._createMiddleMarker(e,r),this._createMiddleMarker(r,t)},i=function(){s.call(this),o.call(this),this._poly.fire("edit")},r.on("click",i,this).on("dragstart",s,this).on("dragend",o,this),this._markerGroup.addLayer(r)},_updatePrevNext:function(e,t){e._next=t,t._prev=e},_getMiddleLatLng:function(e,t){var n=this._poly._map,r=n.latLngToLayerPoint(e.getLatLng()),i=n.latLngToLayerPoint(t.getLatLng());return n.layerPointToLatLng(r._add(i).divideBy(2))}}),n.Control=n.Class.extend({options:{position:"topright"},initialize:function(e){n.Util.setOptions(this,e)},getPosition:function(){return this.options.position},setPosition:function(e){var t=this._map;t&&t.removeControl(this),this.options.position=e,t&&t.addControl(this)},addTo:function(e){this._map=e;var t=this._container=this.onAdd(e),r=this.getPosition(),i=e._controlCorners[r];return n.DomUtil.addClass(t,"leaflet-control"),r.indexOf("bottom")!==-1?i.insertBefore(t,i.firstChild):i.appendChild(t),this},removeFrom:function(e){var t=this.getPosition(),n=e._controlCorners[t];return n.removeChild(this._container),this._map=null,this.onRemove&&this.onRemove(e),this}}),n.Map.include({addControl:function(e){return e.addTo(this),this},removeControl:function(e){return e.removeFrom(this),this},_initControlPos:function(){function i(i,s){var o=t+i+" "+t+s;e[i+s]=n.DomUtil.create("div",o,r)}var e=this._controlCorners={},t="leaflet-",r=this._controlContainer=n.DomUtil.create("div",t+"control-container",this._container);i("top","left"),i("top","right"),i("bottom","left"),i("bottom","right")}}),n.Control.Zoom=n.Control.extend({options:{position:"topleft"},onAdd:function(e){var t="leaflet-control-zoom",r=n.DomUtil.create("div",t);return this._createButton("Zoom in",t+"-in",r,e.zoomIn,e),this._createButton("Zoom out",t+"-out",r,e.zoomOut,e),r},_createButton:function(e,t,r,i,s){var o=n.DomUtil.create("a",t,r);return o.href="#",o.title=e,n.DomEvent.on(o,"click",n.DomEvent.stopPropagation).on(o,"click",n.DomEvent.preventDefault).on(o,"click",i,s),o}}),n.Map.mergeOptions({zoomControl:!0}),n.Map.addInitHook(function(){this.options.zoomControl&&(this.zoomControl=new n.Control.Zoom,this.addControl(this.zoomControl))}),n.Control.Attribution=n.Control.extend({options:{position:"bottomright",prefix:'Powered by Leaflet'},initialize:function(e){n.Util.setOptions(this,e),this._attributions={}},onAdd:function(e){return this._container=n.DomUtil.create("div","leaflet-control-attribution"),n.DomEvent.disableClickPropagation(this._container),e.on("layeradd",this._onLayerAdd,this).on("layerremove",this._onLayerRemove,this),this._update(),this._container},onRemove:function(e){e.off("layeradd",this._onLayerAdd).off("layerremove",this._onLayerRemove)},setPrefix:function(e){this.options.prefix=e,this._update()},addAttribution:function(e){if(!e)return;this._attributions[e]||(this._attributions[e]=0),this._attributions[e]++,this._update()},removeAttribution:function(e){if(!e)return;this._attributions[e]--,this._update()},_update:function(){if(!this._map)return;var e=[];for(var t in this._attributions)this._attributions.hasOwnProperty(t)&&this._attributions[t]&&e.push(t);var n=[];this.options.prefix&&n.push(this.options.prefix),e.length&&n.push(e.join(", ")),this._container.innerHTML=n.join(" — ")},_onLayerAdd:function(e){e.layer.getAttribution&&this.addAttribution(e.layer.getAttribution())},_onLayerRemove:function(e){e.layer.getAttribution&&this.removeAttribution(e.layer.getAttribution())}}),n.Map.mergeOptions({attributionControl:!0}),n.Map.addInitHook(function(){this.options.attributionControl&&(this.attributionControl=(new n.Control.Attribution).addTo(this))}),n.Control.Scale=n.Control.extend({options:{position:"bottomleft",maxWidth:100,metric:!0,imperial:!0,updateWhenIdle:!1},onAdd:function(e){this._map=e;var t="leaflet-control-scale",r=n.DomUtil.create("div",t),i=this.options;return i.metric&&(this._mScale=n.DomUtil.create("div",t+"-line",r)),i.imperial&&(this._iScale=n.DomUtil.create("div",t+"-line",r)),e.on(i.updateWhenIdle?"moveend":"move",this._update,this),this._update(),r},onRemove:function(e){e.off(this.options.updateWhenIdle?"moveend":"move",this._update,this)},_update:function(){var e=this._map.getBounds(),t=e.getCenter().lat,r=new n.LatLng(t,e.getSouthWest().lng),i=new n.LatLng(t,e.getNorthEast().lng),s=this._map.getSize(),o=this.options,u=0;s.x>0&&(u=r.distanceTo(i)*(o.maxWidth/s.x)),o.metric&&u&&this._updateMetric(u),o.imperial&&u&&this._updateImperial(u)},_updateMetric:function(e){var t=this._getRoundNum(e);this._mScale.style.width=this._getScaleWidth(t/e)+"px",this._mScale.innerHTML=t<1e3?t+" m":t/1e3+" km"},_updateImperial:function(e){var t=e*3.2808399,n=this._iScale,r,i,s;t>5280?(r=t/5280,i=this._getRoundNum(r),n.style.width=this._getScaleWidth(i/r)+"px",n.innerHTML=i+" mi"):(s=this._getRoundNum(t),n.style.width=this._getScaleWidth(s/t)+"px",n.innerHTML=s+" ft")},_getScaleWidth:function(e){return Math.round(this.options.maxWidth*e)-10},_getRoundNum:function(e){var t=Math.pow(10,(Math.floor(e)+"").length-1),n=e/t;return n=n>=10?10:n>=5?5:n>=2?2:1,t*n}}),n.Control.Layers=n.Control.extend({options:{collapsed:!0,position:"topright"},initialize:function(e,t,r){n.Util.setOptions(this,r),this._layers={};for(var i in e)e.hasOwnProperty(i)&&this._addLayer(e[i],i);for(i in t)t.hasOwnProperty(i)&&this._addLayer(t[i],i,!0)},onAdd:function(e){return this._initLayout(),this._update(),this._container},addBaseLayer:function(e,t){return this._addLayer(e,t),this._update(),this},addOverlay:function(e,t){return this._addLayer(e,t,!0),this._update(),this},removeLayer:function(e){var t=n.Util.stamp(e);return delete this._layers[t],this._update(),this},_initLayout:function(){var e="leaflet-control-layers",t=this._container=n.DomUtil.create("div",e);n.Browser.touch?n.DomEvent.on(t,"click",n.DomEvent.stopPropagation):n.DomEvent.disableClickPropagation(t);var r=this._form=n.DomUtil.create("form",e+"-list");if(this.options.collapsed){n.DomEvent.on(t,"mouseover",this._expand,this).on(t,"mouseout",this._collapse,this);var i=this._layersLink=n.DomUtil.create("a",e+"-toggle",t);i.href="#",i.title="Layers",n.Browser.touch?n.DomEvent.on(i,"click",n.DomEvent.stopPropagation).on(i,"click",n.DomEvent.preventDefault).on(i,"click",this._expand,this):n.DomEvent.on(i,"focus",this._expand,this),this._map.on("movestart",this._collapse,this)}else this._expand();this._baseLayersList=n.DomUtil.create("div",e+"-base",r),this._separator=n.DomUtil.create("div",e+"-separator",r),this._overlaysList=n.DomUtil.create("div",e+"-overlays",r),t.appendChild(r)},_addLayer:function(e,t,r){var i=n.Util.stamp(e);this._layers[i]={layer:e,name:t,overlay:r}},_update:function(){if(!this._container)return;this._baseLayersList.innerHTML="",this._overlaysList.innerHTML="";var e=!1,t=!1;for(var n in this._layers)if(this._layers.hasOwnProperty(n)){var r=this._layers[n];this._addItem(r),t=t||r.overlay,e=e||!r.overlay}this._separator.style.display=t&&e?"":"none"},_addItem:function(e,t){var r=document.createElement("label"),i=document.createElement("input");e.overlay||(i.name="leaflet-base-layers"),i.type=e.overlay?"checkbox":"radio",i.layerId=n.Util.stamp(e.layer),i.defaultChecked=this._map.hasLayer(e.layer),n.DomEvent.on(i,"click",this._onInputClick,this);var s=document.createTextNode(" "+e.name);r.appendChild(i),r.appendChild(s);var o=e.overlay?this._overlaysList:this._baseLayersList;o.appendChild(r)},_onInputClick:function(){var e,t,n,r=this._form.getElementsByTagName("input"),i=r.length;for(e=0;e.5&&this._getLoadedTilesPercentage(e)<.5){e.style.visibility="hidden",e.empty=!0,this._stopLoadingImages(e);return}t||(t=this._tileBg=this._createPane("leaflet-tile-pane",this._mapPane),t.style.zIndex=1),t.style[n.DomUtil.TRANSFORM]="",t.style.visibility="hidden",t.empty=!0,e.empty=!1,this._tilePane=this._panes.tilePane=t;var r=this._tileBg=e;r.transition||(r.transition=new n.Transition(r,{duration:.25,easing:"cubic-bezier(0.25,0.1,0.25,0.75)"}),r.transition.on("end",this._onZoomTransitionEnd,this)),this._stopLoadingImages(r)},_getLoadedTilesPercentage:function(e){var t=e.getElementsByTagName("img"),n,r,i=0;for(n=0,r=t.length;n' + childCount + '', elementType: 'span', className: 'marker-cluster' + c, iconSize: new L.Point(40, 40) }); + } + }, + + initialize: function (options) { + L.Util.setOptions(this, options); + + L.FeatureGroup.prototype.initialize.call(this, []); + + this._needsClustering = []; + + this._markersAndClustersAtZoom = {}; + }, + + + _sqDist: function (p1, p2) { + var dx = p2.x - p1.x, + dy = p2.y - p1.y; + return dx * dx + dy * dy; + }, + + _zoomEnd: function () { + this._animationStart(); + + this._mergeSplitClusters(); + + this._zoom = this._map._zoom; + }, + + _moveEnd: function () { + if (this._inZoomAnimation) { + return; + } + + var l, i, + layers = this._layers, + bounds = this._getExpandedVisibleBounds(), + highestLevel = this._markersAndClustersAtZoom[this._highestZoom], + depth = this._zoom - this._highestZoom, + highestLevelClusters = highestLevel.clusters, + highestLevelUnclustered = highestLevel.unclustered; + + //Remove visible layers that are no longer visible + for (i in layers) { + l = layers[i]; + if (!bounds.contains(l.getLatLng())) { + L.FeatureGroup.prototype.removeLayer.call(this, l); + } + } + + //Re-Check everyone for being in the viewport + //Do the clusters (and their child unclustered ones) recursively for performance + for (i = 0; i < highestLevelClusters.length; i++) { + l = highestLevelClusters[i]; + if (bounds.contains(l.getLatLng())) { + l._recursivelyAddChildrenToMap(null, depth, bounds); + } + } + + //Do the markers at this level too + for (i = 0; i < highestLevelUnclustered.length; i++) { + l = highestLevelUnclustered[i]; + if (bounds.contains(l.getLatLng())) { + L.FeatureGroup.prototype.addLayer.call(this, l); + } + } + }, + + _generateInitialClusters: function () { + var res = this._cluster(this._needsClustering, [], this._map.getZoom()); + + this._markersAndClustersAtZoom[this._map._zoom] = res; + //Remember the highest zoom level we've seen and the current zoom level + this._highestZoom = this._zoom = this._map._zoom; + + //Make things appear on the map + for (var i = 0; i < res.clusters.length; i++) { + res.clusters[i]._addToMap(); + } + for (var j = 0; j < res.unclustered.length; j++) { + L.FeatureGroup.prototype.addLayer.call(this, res.unclustered[j]); + } + }, + + //Merge and split any existing clusters that are too big or small + _mergeSplitClusters: function () { + var map = this._map, + newState, + depth = Math.abs(this._map._zoom - this._zoom); + + if (this._zoom < this._map._zoom) { //Zoom in, split + var startingClusters = this._markersAndClustersAtZoom[this._zoom].clusters; + + while (this._zoom < this._map._zoom) { //Split each intermediate layer if required + var currentClusters = this._markersAndClustersAtZoom[this._zoom].clusters; + + this._zoom++; + + newState = this._markersAndClustersAtZoom[this._zoom]; + + if (!newState) { //If we don't have clusters for the new level, calculate them + newState = { 'clusters': [], 'unclustered': [] }; + + for (var i = 0; i < currentClusters.length; i++) { + var newClusters; + if (currentClusters[i]._childClusters.length > 0) { + + //Child clusters should always be 0 as we haven't calculated clusters for this level + throw 'something is wrong, childClusters length should be 0: ' + currentClusters[i]._childClusters.length; + } else { + newClusters = this._cluster(currentClusters[i]._markers, [], this._zoom); + } + + currentClusters[i]._childClusters = newClusters.clusters; + currentClusters[i]._markers = newClusters.unclustered; + + newState.clusters = newState.clusters.concat(newClusters.clusters); + newState.unclustered = newState.unclustered.concat(newClusters.unclustered); + } + + this._markersAndClustersAtZoom[this._zoom] = newState; + } + } + + this._animationZoomIn(startingClusters, depth); + + } else if (this._zoom > this._map._zoom) { //Zoom out, merge + this._highestZoom = Math.min(this._highestZoom, this._map._zoom); + + //Ensure all of the intermediate zoom levels are generated + var now; + while (this._zoom > this._map._zoom) { + now = this._markersAndClustersAtZoom[this._zoom]; + newState = this._markersAndClustersAtZoom[this._zoom - 1]; + this._zoom--; + + if (!newState) { + newState = this._cluster(now.clusters.concat(now.unclustered), [], this._zoom); + this._markersAndClustersAtZoom[this._zoom] = newState; + } + } + + this._animationZoomOut(newState.clusters, depth); + } + }, + + addLayer: function (layer) { + this._needsClustering.push(layer); + + //TODO: If we have already clustered we'll need to add this one to a cluster + //Should be able to use _cluster with the current clusters and just this layer + + return this; + }, + + removeLayer: function (layer) { + + //TODO Hrm.... + //Will need to got through each cluster and find the marker, removing it as required, possibly turning its parent from a cluster into an individual marker. + //Or the easy version: Just recluster everything! + + return this; + }, + + onAdd: function (map) { + L.FeatureGroup.prototype.onAdd.call(this, map); // LayerGroup + + this._generateInitialClusters(); + this._map.on('zoomend', this._zoomEnd, this); + this._map.on('moveend', this._moveEnd, this); + }, + + //Takes a list of objects that have a 'getLatLng()' function (Marker / MarkerCluster) + //Performs clustering on them (using a greedy algorithm) and returns those clusters. + //Returns { clusters: [], unclustered: [] } + _cluster: function (points, existingClusters, zoom) { + var clusterRadiusSqrd = this.options.maxClusterRadius * this.options.maxClusterRadius, + clusters = existingClusters, + unclustered = [], + center = this._map.getCenter(), + i, j, c; + + //Calculate pixel positions + for (i = 0; i < clusters.length; i++) { + c = clusters[i]; + c._projCenter = this._map.project(c.getLatLng(), zoom); + } + + for (i = 0; i < points.length; i++) { + var p2 = points[i]; + p2._projCenter = this._map.project(p2.getLatLng(), zoom); + } + + + //go through each point + for (i = 0; i < points.length; i++) { + var point = points[i]; + + var used = false; + + //try add it to an existing cluster + for (j = 0; j < clusters.length; j++) { + c = clusters[j]; + if (this._sqDist(point._projCenter, c._projCenter) <= clusterRadiusSqrd) { + c._addChild(point); + c._projCenter = this._map.project(c.getLatLng(), zoom); + + used = true; + break; + } + } + + //otherwise, look through all of the markers we haven't managed to cluster and see if we should form a cluster with them + if (!used) { + for (j = 0 ; j < unclustered.length; j++) { + if (this._sqDist(point._projCenter, unclustered[j]._projCenter) <= clusterRadiusSqrd) { + //Create a new cluster with these 2 + var newCluster = new L.MarkerCluster(this, point, unclustered[j]); + clusters.push(newCluster); + + newCluster._projCenter = this._map.project(newCluster.getLatLng(), zoom); + + unclustered.splice(j, 1); + used = true; + break; + } + } + if (!used) { + unclustered.push(point); + } + } + } + + //Any clusters that did not end up being a child of a new cluster, make them a child of a new cluster + for (i = unclustered.length - 1; i >= 0; i--) { + c = unclustered[i]; + delete c._projCenter; + + if (c instanceof L.MarkerCluster) { + var nc = new L.MarkerCluster(this, c); + clusters.push(nc); + unclustered.splice(i, 1); + } + } + + //Remove the _projCenter temp variable from clusters + for (i = 0; i < clusters.length; i++) { + delete clusters[i]._projCenter; + clusters[i]._baseInit(); + } + + return { 'clusters': clusters, 'unclustered': unclustered }; + }, + + //Gets the maps visible bounds expanded in each direction by the size of the screen (so the user cannot see an area we do not cover in one pan) + _getExpandedVisibleBounds: function () { + var map = this._map, + bounds = map.getPixelBounds(), + width = 0,//Math.abs(bounds.max.x - bounds.min.x), + height = 0,//Math.abs(bounds.max.y - bounds.min.y), + sw = map.unproject(new L.Point(bounds.min.x - width, bounds.min.y - height)), + ne = map.unproject(new L.Point(bounds.max.x + width, bounds.max.y + height)); + + return new L.LatLngBounds(sw, ne); + } +}); + +L.MarkerClusterGroup.include(!L.DomUtil.TRANSITION ? { + + //Non Animated versions of everything + _animationStart: function () { + //Do nothing... + }, + _animationZoomIn: function (startingClusters, depth) { + var bounds = this._getExpandedVisibleBounds(); + + //Add all children of current clusters to map and remove those clusters from map + for (var j = 0; j < startingClusters.length; j++) { + var c = startingClusters[j]; + + //Remove old cluster + L.FeatureGroup.prototype.removeLayer.call(this, c); //TODO Animate + + c._recursivelyAddChildrenToMap(null, depth, bounds); + } + }, + _animationZoomOut: function (newClusters, depth) { + var bounds = this._getExpandedVisibleBounds(); + + //Just add new and remove old from the map + for (var j = 0; j < newClusters.length; j++) { + var cl = newClusters[j]; + + if (bounds.contains(cl._latlng)) { + cl._addToMap(); + } + cl._recursivelyRemoveChildrenFromMap(depth); + } + } +} : { + + //Animated versions here + _animationStart: function () { + this._map._mapPane.className += ' leaflet-cluster-anim'; + }, + _animationZoomIn: function (startingClusters, depth) { + var map = this._map, + bounds = this._getExpandedVisibleBounds(); + + //Add all children of current clusters to map and remove those clusters from map + for (var j = 0; j < startingClusters.length; j++) { + var c = startingClusters[j]; + var startPos = c.getLatLng(); + + //Remove old cluster + L.FeatureGroup.prototype.removeLayer.call(this, c); //TODO Animate + + c._recursivelyAddChildrenToMap(startPos, depth, bounds); + } + + this._inZoomAnimation = true; + var me = this; + //Start up a function to update the positions of the just added clusters/markers + //This must happen after otherwise they don't get animated + setTimeout(function () { + + for (var j = 0; j < startingClusters.length; j++) { + startingClusters[j]._recursivelyRestoreChildPositions(depth); + } + + setTimeout(function () { + map._mapPane.className = map._mapPane.className.replace(' leaflet-cluster-anim', ''); + me._inZoomAnimation = false; + }, 250); + }, 0); + }, + _animationZoomOut: function (newClusters, depth) { + var map = this._map, + bounds = this._getExpandedVisibleBounds(); + + //Animate all of the markers in the clusters to move to their cluster center point + for (var i = 0; i < newClusters.length; i++) { + var c = newClusters[i]; + + c._recursivelyAnimateChildrenIn(this._map.latLngToLayerPoint(c.getLatLng()).round(), depth); + } + + this._inZoomAnimation = true; + var me = this; + //TODO: Use the transition timing stuff to make this more reliable + setTimeout(function () { + + map._mapPane.className = map._mapPane.className.replace(' leaflet-cluster-anim', ''); + + for (var j = 0; j < newClusters.length; j++) { + var cl = newClusters[j]; + if (bounds.contains(cl._latlng)) { + cl._addToMap(); + } + cl._recursivelyRemoveChildrenFromMap(depth); + } + me._inZoomAnimation = false; + }, 250); + } +}); \ No newline at end of file