diff --git a/dist/leaflet-src.js b/dist/leaflet-src.js index 264cabb9..eba20b9e 100644 --- a/dist/leaflet-src.js +++ b/dist/leaflet-src.js @@ -1,6873 +1,6873 @@ -/* - Copyright (c) 2010-2012, CloudMade, Vladimir Agafonkin - Leaflet is a modern open-source JavaScript library for interactive maps. - http://leaflet.cloudmade.com -*/ -(function (window, undefined) { - -var L, originalL; - -if (typeof exports !== undefined + '') { - L = exports; -} else { - originalL = window.L; - L = {}; - - L.noConflict = function () { - window.L = originalL; - return this; - }; - - window.L = L; -} - -L.version = '0.4'; - - -/* - * L.Util is a namespace for various utility functions. - */ - -L.Util = { - extend: function (/*Object*/ dest) /*-> Object*/ { // merge src properties into dest - var sources = Array.prototype.slice.call(arguments, 1); - for (var j = 0, len = sources.length, src; j < len; j++) { - src = sources[j] || {}; - for (var i in src) { - if (src.hasOwnProperty(i)) { - dest[i] = src[i]; - } - } - } - return dest; - }, - - bind: function (fn, obj) { // (Function, Object) -> Function - var args = arguments.length > 2 ? Array.prototype.slice.call(arguments, 2) : null; - return function () { - return fn.apply(obj, args || arguments); - }; - }, - - stamp: (function () { - var lastId = 0, key = '_leaflet_id'; - return function (/*Object*/ obj) { - obj[key] = obj[key] || ++lastId; - return obj[key]; - }; - }()), - - - // 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: 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(point); - }, - - _add: function (point) { - this.x += point.x; - this.y += point.y; - return this; - }, - - subtract: function (point) { - return this.clone()._subtract(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) { - return new L.Point(this.x * num, this.y * num); - }, - - distanceTo: function (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.Bounds represents a rectangular area on the screen in pixel coordinates. - */ - -L.Bounds = L.Class.extend({ - - initialize: function (min, max) { //(Point, Point) or Point[] - if (!min) { - return; - } - var points = (min instanceof Array ? min : [min, max]); - 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) { - if (!this.min && !this.max) { - this.min = new L.Point(point.x, point.y); - this.max = new L.Point(point.x, point.y); - } 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); - } - }, - - 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 (/*Bounds or Point*/ obj)/*->Boolean*/ { - var min, max; - - 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) { - 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.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+/, ''); - }, - - 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 (/*Number*/ rawLat, /*Number*/ rawLng, /*Boolean*/ noWrap) { - 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 - } - - //TODO change to lat() & lng() - 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 (/*LatLng*/ obj) { - if (!(obj instanceof L.LatLng)) { - return false; - } - - var margin = Math.max(Math.abs(this.lat - obj.lat), Math.abs(this.lng - obj.lng)); - return margin <= L.LatLng.MAX_MARGIN; - }, - - toString: function () { - 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 (/*LatLng*/ other)/*->Double*/ { - 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.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 = (southWest instanceof Array ? southWest : [southWest, northEast]); - 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 (/*LatLng or 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 (/*LatLngBounds or LatLng*/ obj) /*-> Boolean*/ { - 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 (/*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 (/*LatLngBounds*/ bounds) { - return bounds ? this._southWest.equals(bounds.getSouthWest()) && - this._northEast.equals(bounds.getNorthEast()) : false; - } -}); - -//TODO International date line? - - -/* - * 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: true - }, - - 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(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(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(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(offset); - - this.fire('move'); - return this.fire('moveend'); - }, - - setMaxBounds: function (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) { - 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 - 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(latlng, zoom); - }, - - unproject: function (point, zoom) { // (Point[, Number]) -> LatLng - zoom = zoom === undefined ? this._zoom : zoom; - return this.options.crs.pointToLatLng(point, zoom); - }, - - layerPointToLatLng: function (point) { // (Point) - return this.unproject(point.add(this._initialTopLeftPoint)); - }, - - latLngToLayerPoint: function (latlng) { // (LatLng) - return this.project(latlng)._round()._subtract(this._initialTopLeftPoint); - }, - - containerPointToLayerPoint: function (point) { // (Point) - return point.subtract(this._getMapPanePos()); - }, - - layerPointToContainerPoint: function (point) { // (Point) - return point.add(this._getMapPanePos()); - }, - - containerPointToLatLng: function (point) { - return this.layerPointToLatLng(this.containerPointToLayerPoint(point)); - }, - - latLngToContainerPoint: function (latlng) { - return this.layerPointToContainerPoint(this.latLngToLayerPoint(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 = ''; - container.className += ' leaflet-container'; - - if (L.Browser.touch) { - container.className += ' leaflet-touch'; - } - - if (this.options.fadeAnimation) { - container.className += ' 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) { - panes.markerPane.className += zoomHide; - panes.shadowPane.className += zoomHide; - panes.popupPane.className += 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.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(); - }, - - 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) { - this.className += ' 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.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.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.ImageOverlay = L.Class.extend({ - includes: L.Mixin.Events, - - options: { - opacity: 1 - }, - - initialize: function (url, bounds, options) { // (String, LatLngBounds) - this._url = url; - this._bounds = 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) { - 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); - } - }, - - 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) { - this._image.className += ' leaflet-zoom-animated'; - } - - 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.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) { return null; } - - var img = this._createImg(src); - this._setIconStyles(img, name); - - return img; - }, - - _setIconStyles: function (img, name) { - var options = this.options, - size = options[name + 'Size'], - anchor = options.iconAnchor; - - if (!anchor && size) { - anchor = size.divideBy(2, true); - } - - if (name === 'shadow' && anchor && options.shadowOffset) { - anchor._add(options.shadowOffset); - } - - img.className = 'leaflet-marker-' + name + ' ' + options.className + ' leaflet-zoom-animated'; - - 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']; - } -}); - - -// 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 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 = latlng; - }, - - onAdd: function (map) { - this._map = map; - - map.on('viewreset', this.update, this); - - if (map.options.zoomAnimation && map.options.markerZoomAnimation) { - map.on('zoomanim', this._animateZoom, this); - } - - this._initIcon(); - this.update(); - }, - - 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 = 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']; - - icon.className += ' 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.DivIcon = L.Icon.extend({ - options: { - iconSize: new L.Point(12, 12), // also can be set through CSS - /* - iconAnchor: (Point) - popupAnchor: (Point) - */ - className: 'leaflet-div-icon' - }, - - createIcon: function () { - var div = document.createElement('div'); - this._setIconStyles(div, 'icon'); - return div; - }, - - createShadow: function () { - return null; - } -}); - - - -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 - }, - - 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 = 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); - } -}); - - -/* - * 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; - }, - - _iterateLayers: function (method, context) { - for (var i in this._layers) { - if (this._layers.hasOwnProperty(i)) { - method.call(context, this._layers[i]); - } - } - } -}); - - -/* - * 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) { - this._initEvents(layer); - - L.LayerGroup.prototype.addLayer.call(this, layer); - - if (this._popupContent && layer.bindPopup) { - layer.bindPopup(this._popupContent); - } - }, - - removeLayer: function (layer) { - this._deinitEvents(layer); - - L.LayerGroup.prototype.removeLayer.call(this, layer); - - 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; - }, - - _initEvents: function (layer) { - layer.on('click dblclick mouseover mouseout', this._propagateEvent, this); - }, - - _deinitEvents: function (layer) { - layer.off('click dblclick mouseover mouseout', this._propagateEvent, this); - }, - - _propagateEvent: function (e) { - e.layer = e.target; - e.target = this; - - this.fire(e.type, e); - } -}); - - -/* - * 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); - }, - - 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) { - this._pathRoot.setAttribute('class', ' leaflet-zoom-animated'); - - this.on({ - 'zoomanim': this._animatePathZoom, - 'zoomend': this._endPathZoom - }); - } - - 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'); - container.className += ' leaflet-vml-shape' + - (this.options.clickable ? ' 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.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)) { - 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'); - } -}); - - -/* - * 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) { - return [ - latLngBounds.getSouthWest(), - latLngBounds.getNorthWest(), - latLngBounds.getNorthEast(), - latLngBounds.getSouthEast(), - latLngBounds.getSouthWest() - ]; - } -}); - - -/* - * 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 = latlng; - this._mRadius = radius; - }, - - options: { - fill: true - }, - - setLatLng: function (latlng) { - this._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.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.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._geojson = geojson; - this._layers = {}; - - if (geojson) { - this.addGeoJSON(geojson); - } - }, - - addGeoJSON: function (geojson) { - var features = geojson.features, - i, len; - - if (features) { - for (i = 0, len = features.length; i < len; i++) { - this.addGeoJSON(features[i]); - } - return; - } - - var isFeature = (geojson.type === 'Feature'), - geometry = isFeature ? geojson.geometry : geojson, - layer = L.GeoJSON.geometryToLayer(geometry, this.options.pointToLayer); - - this.fire('featureparse', { - layer: layer, - properties: geojson.properties, - geometryType: geometry.type, - bbox: geojson.bbox, - id: geojson.id, - geometry: geojson.geometry - }); - - this.addLayer(layer); - } -}); - -L.Util.extend(L.GeoJSON, { - geometryToLayer: function (geometry, pointToLayer) { - var coords = geometry.coordinates, - layers = [], - latlng, latlngs, i, len, layer; - - switch (geometry.type) { - case 'Point': - latlng = this.coordsToLatLng(coords); - return pointToLayer ? pointToLayer(latlng) : new L.Marker(latlng); - - case 'MultiPoint': - for (i = 0, len = coords.length; i < len; i++) { - latlng = this.coordsToLatLng(coords[i]); - layer = pointToLayer ? pointToLayer(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.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') { - el.className += ' 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) { - map._mapPane.className += ' 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.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] = ''; - - this.fire('step'); - - if (e && e.type) { - this.fire('end'); - } - } - } -}); - - -/* - * 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'); - - this._mapPane.className += ' 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; } - - this._mapPane.className += ' 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 - }); - } -}); - - - - +/* + Copyright (c) 2010-2012, CloudMade, Vladimir Agafonkin + Leaflet is a modern open-source JavaScript library for interactive maps. + http://leaflet.cloudmade.com +*/ +(function (window, undefined) { + +var L, originalL; + +if (typeof exports !== undefined + '') { + L = exports; +} else { + originalL = window.L; + L = {}; + + L.noConflict = function () { + window.L = originalL; + return this; + }; + + window.L = L; +} + +L.version = '0.4'; + + +/* + * L.Util is a namespace for various utility functions. + */ + +L.Util = { + extend: function (/*Object*/ dest) /*-> Object*/ { // merge src properties into dest + var sources = Array.prototype.slice.call(arguments, 1); + for (var j = 0, len = sources.length, src; j < len; j++) { + src = sources[j] || {}; + for (var i in src) { + if (src.hasOwnProperty(i)) { + dest[i] = src[i]; + } + } + } + return dest; + }, + + bind: function (fn, obj) { // (Function, Object) -> Function + var args = arguments.length > 2 ? Array.prototype.slice.call(arguments, 2) : null; + return function () { + return fn.apply(obj, args || arguments); + }; + }, + + stamp: (function () { + var lastId = 0, key = '_leaflet_id'; + return function (/*Object*/ obj) { + obj[key] = obj[key] || ++lastId; + return obj[key]; + }; + }()), + + + // 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: 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(point); + }, + + _add: function (point) { + this.x += point.x; + this.y += point.y; + return this; + }, + + subtract: function (point) { + return this.clone()._subtract(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) { + return new L.Point(this.x * num, this.y * num); + }, + + distanceTo: function (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.Bounds represents a rectangular area on the screen in pixel coordinates. + */ + +L.Bounds = L.Class.extend({ + + initialize: function (min, max) { //(Point, Point) or Point[] + if (!min) { + return; + } + var points = (min instanceof Array ? min : [min, max]); + 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) { + if (!this.min && !this.max) { + this.min = new L.Point(point.x, point.y); + this.max = new L.Point(point.x, point.y); + } 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); + } + }, + + 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 (/*Bounds or Point*/ obj)/*->Boolean*/ { + var min, max; + + 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) { + 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.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+/, ''); + }, + + 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 (/*Number*/ rawLat, /*Number*/ rawLng, /*Boolean*/ noWrap) { + 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 + } + + //TODO change to lat() & lng() + 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 (/*LatLng*/ obj) { + if (!(obj instanceof L.LatLng)) { + return false; + } + + var margin = Math.max(Math.abs(this.lat - obj.lat), Math.abs(this.lng - obj.lng)); + return margin <= L.LatLng.MAX_MARGIN; + }, + + toString: function () { + 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 (/*LatLng*/ other)/*->Double*/ { + 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.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 = (southWest instanceof Array ? southWest : [southWest, northEast]); + 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 (/*LatLng or 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 (/*LatLngBounds or LatLng*/ obj) /*-> Boolean*/ { + 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 (/*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 (/*LatLngBounds*/ bounds) { + return bounds ? this._southWest.equals(bounds.getSouthWest()) && + this._northEast.equals(bounds.getNorthEast()) : false; + } +}); + +//TODO International date line? + + +/* + * 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: true + }, + + 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(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(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(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(offset); + + this.fire('move'); + return this.fire('moveend'); + }, + + setMaxBounds: function (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) { + 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 + 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(latlng, zoom); + }, + + unproject: function (point, zoom) { // (Point[, Number]) -> LatLng + zoom = zoom === undefined ? this._zoom : zoom; + return this.options.crs.pointToLatLng(point, zoom); + }, + + layerPointToLatLng: function (point) { // (Point) + return this.unproject(point.add(this._initialTopLeftPoint)); + }, + + latLngToLayerPoint: function (latlng) { // (LatLng) + return this.project(latlng)._round()._subtract(this._initialTopLeftPoint); + }, + + containerPointToLayerPoint: function (point) { // (Point) + return point.subtract(this._getMapPanePos()); + }, + + layerPointToContainerPoint: function (point) { // (Point) + return point.add(this._getMapPanePos()); + }, + + containerPointToLatLng: function (point) { + return this.layerPointToLatLng(this.containerPointToLayerPoint(point)); + }, + + latLngToContainerPoint: function (latlng) { + return this.layerPointToContainerPoint(this.latLngToLayerPoint(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 = ''; + container.className += ' leaflet-container'; + + if (L.Browser.touch) { + container.className += ' leaflet-touch'; + } + + if (this.options.fadeAnimation) { + container.className += ' 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) { + panes.markerPane.className += zoomHide; + panes.shadowPane.className += zoomHide; + panes.popupPane.className += 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.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(); + }, + + 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) { + this.className += ' 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.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.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.ImageOverlay = L.Class.extend({ + includes: L.Mixin.Events, + + options: { + opacity: 1 + }, + + initialize: function (url, bounds, options) { // (String, LatLngBounds) + this._url = url; + this._bounds = 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) { + 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); + } + }, + + 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) { + this._image.className += ' leaflet-zoom-animated'; + } + + 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.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) { return null; } + + var img = this._createImg(src); + this._setIconStyles(img, name); + + return img; + }, + + _setIconStyles: function (img, name) { + var options = this.options, + size = options[name + 'Size'], + anchor = options.iconAnchor; + + if (!anchor && size) { + anchor = size.divideBy(2, true); + } + + if (name === 'shadow' && anchor && options.shadowOffset) { + anchor._add(options.shadowOffset); + } + + img.className = 'leaflet-marker-' + name + ' ' + options.className + ' leaflet-zoom-animated'; + + 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']; + } +}); + + +// 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 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 = latlng; + }, + + onAdd: function (map) { + this._map = map; + + map.on('viewreset', this.update, this); + + if (map.options.zoomAnimation && map.options.markerZoomAnimation) { + map.on('zoomanim', this._animateZoom, this); + } + + this._initIcon(); + this.update(); + }, + + 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 = 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']; + + icon.className += ' 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.DivIcon = L.Icon.extend({ + options: { + iconSize: new L.Point(12, 12), // also can be set through CSS + /* + iconAnchor: (Point) + popupAnchor: (Point) + */ + className: 'leaflet-div-icon' + }, + + createIcon: function () { + var div = document.createElement('div'); + this._setIconStyles(div, 'icon'); + return div; + }, + + createShadow: function () { + return null; + } +}); + + + +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 + }, + + 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 = 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); + } +}); + + +/* + * 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; + }, + + _iterateLayers: function (method, context) { + for (var i in this._layers) { + if (this._layers.hasOwnProperty(i)) { + method.call(context, this._layers[i]); + } + } + } +}); + + +/* + * 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) { + this._initEvents(layer); + + L.LayerGroup.prototype.addLayer.call(this, layer); + + if (this._popupContent && layer.bindPopup) { + layer.bindPopup(this._popupContent); + } + }, + + removeLayer: function (layer) { + this._deinitEvents(layer); + + L.LayerGroup.prototype.removeLayer.call(this, layer); + + 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; + }, + + _initEvents: function (layer) { + layer.on('click dblclick mouseover mouseout', this._propagateEvent, this); + }, + + _deinitEvents: function (layer) { + layer.off('click dblclick mouseover mouseout', this._propagateEvent, this); + }, + + _propagateEvent: function (e) { + e.layer = e.target; + e.target = this; + + this.fire(e.type, e); + } +}); + + +/* + * 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); + }, + + 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) { + this._pathRoot.setAttribute('class', ' leaflet-zoom-animated'); + + this.on({ + 'zoomanim': this._animatePathZoom, + 'zoomend': this._endPathZoom + }); + } + + 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'); + container.className += ' leaflet-vml-shape' + + (this.options.clickable ? ' 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.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)) { + 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'); + } +}); + + +/* + * 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) { + return [ + latLngBounds.getSouthWest(), + latLngBounds.getNorthWest(), + latLngBounds.getNorthEast(), + latLngBounds.getSouthEast(), + latLngBounds.getSouthWest() + ]; + } +}); + + +/* + * 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 = latlng; + this._mRadius = radius; + }, + + options: { + fill: true + }, + + setLatLng: function (latlng) { + this._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.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.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._geojson = geojson; + this._layers = {}; + + if (geojson) { + this.addGeoJSON(geojson); + } + }, + + addGeoJSON: function (geojson) { + var features = geojson.features, + i, len; + + if (features) { + for (i = 0, len = features.length; i < len; i++) { + this.addGeoJSON(features[i]); + } + return; + } + + var isFeature = (geojson.type === 'Feature'), + geometry = isFeature ? geojson.geometry : geojson, + layer = L.GeoJSON.geometryToLayer(geometry, this.options.pointToLayer); + + this.fire('featureparse', { + layer: layer, + properties: geojson.properties, + geometryType: geometry.type, + bbox: geojson.bbox, + id: geojson.id, + geometry: geojson.geometry + }); + + this.addLayer(layer); + } +}); + +L.Util.extend(L.GeoJSON, { + geometryToLayer: function (geometry, pointToLayer) { + var coords = geometry.coordinates, + layers = [], + latlng, latlngs, i, len, layer; + + switch (geometry.type) { + case 'Point': + latlng = this.coordsToLatLng(coords); + return pointToLayer ? pointToLayer(latlng) : new L.Marker(latlng); + + case 'MultiPoint': + for (i = 0, len = coords.length; i < len; i++) { + latlng = this.coordsToLatLng(coords[i]); + layer = pointToLayer ? pointToLayer(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.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') { + el.className += ' 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) { + map._mapPane.className += ' 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.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] = ''; + + this.fire('step'); + + if (e && e.type) { + this.fire('end'); + } + } + } +}); + + +/* + * 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'); + + this._mapPane.className += ' 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; } + + this._mapPane.className += ' 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