/* 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));