diff -r f937ccc6c144 -r 8642f1fb6499 hdalab/lib/leaflet/leaflet-src.js --- a/hdalab/lib/leaflet/leaflet-src.js Fri Feb 24 18:38:00 2012 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,5637 +0,0 @@ -/* - Copyright (c) 2010-2011, CloudMade, Vladimir Agafonkin - Leaflet is a modern open-source JavaScript library for interactive maps. - http://leaflet.cloudmade.com -*/ - -(function (root) { - root.L = { - VERSION: '0.3', - - ROOT_URL: root.L_ROOT_URL || (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) { - if (matches[1] === 'include') { - return '../../dist/'; - } - return src.replace(leafletRe, '') + '/'; - } - } - return ''; - }()), - - noConflict: function () { - root.L = this._originalL; - return this; - }, - - _originalL: root.L - }; -}(this)); - - -/* - * 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 (/*Function*/ fn, /*Object*/ obj) /*-> Object*/ { - return function () { - return fn.apply(obj, arguments); - }; - }, - - stamp: (function () { - var lastId = 0, key = '_leaflet_id'; - return function (/*Object*/ obj) { - obj[key] = obj[key] || ++lastId; - return obj[key]; - }; - }()), - - 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 { - requestFn(callback, contextEl); - } - }; - }()), - - limitExecByInterval: function (fn, time, context) { - var lock, execOnUnlock, args; - function exec() { - lock = false; - if (execOnUnlock) { - args.callee.apply(context, args); - execOnUnlock = false; - } - } - return function () { - args = arguments; - if (!lock) { - lock = true; - setTimeout(exec, time); - fn.apply(context, args); - } else { - execOnUnlock = true; - } - }; - }, - - falseFn: function () { - return false; - }, - - formatNum: function (num, digits) { - var pow = Math.pow(10, digits || 5); - return Math.round(num * pow) / pow; - }, - - setOptions: function (obj, options) { - obj.options = L.Util.extend({}, obj.options, 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; - }); - } -}; - - -/* - * 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; - - // add superclass access - NewClass.superclass = this.prototype; - - // add class name - //proto.className = props; - - //inherit parent's statics - for (var i in this) { - if (this.hasOwnProperty(i) && i !== 'prototype' && i !== 'superclass') { - 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); - - // allow inheriting further - NewClass.extend = L.Class.extend; - - // method for adding properties to prototype - NewClass.include = function (props) { - L.Util.extend(this.prototype, props); - }; - - return NewClass; -}; - - -/* - * L.Mixin.Events adds custom events functionality to Leaflet classes - */ - -L.Mixin = {}; - -L.Mixin.Events = { - addEventListener: function (/*String*/ type, /*Function*/ fn, /*(optional) Object*/ context) { - var events = this._leaflet_events = this._leaflet_events || {}; - events[type] = events[type] || []; - events[type].push({ - action: fn, - context: context || this - }); - return this; - }, - - hasEventListeners: function (/*String*/ type) /*-> Boolean*/ { - var k = '_leaflet_events'; - return (k in this) && (type in this[k]) && (this[k][type].length > 0); - }, - - removeEventListener: function (/*String*/ type, /*Function*/ fn, /*(optional) Object*/ context) { - if (!this.hasEventListeners(type)) { - return this; - } - - for (var i = 0, events = this._leaflet_events, len = events[type].length; i < len; i++) { - if ( - (events[type][i].action === fn) && - (!context || (events[type][i].context === context)) - ) { - events[type].splice(i, 1); - return this; - } - } - return this; - }, - - fireEvent: function (/*String*/ type, /*(optional) Object*/ data) { - if (!this.hasEventListeners(type)) { - return this; - } - - var event = L.Util.extend({ - type: type, - target: this - }, data); - - var listeners = this._leaflet_events[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, - webkit = ua.indexOf("webkit") !== -1, - mobile = typeof orientation !== 'undefined' ? true : false, - android = ua.indexOf("android") !== -1, - opera = window.opera; - - L.Browser = { - ie: ie, - ie6: ie && !window.XMLHttpRequest, - - webkit: webkit, - webkit3d: webkit && ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()), - - gecko: ua.indexOf("gecko") !== -1, - - opera: opera, - - android: android, - mobileWebkit: mobile && webkit, - mobileOpera: mobile && opera, - - mobile: mobile, - touch: (function () { - var touchSupported = false, - startName = 'ontouchstart'; - - // WebKit, etc - if (startName in document.documentElement) { - return true; - } - - // Firefox/Gecko - var e = document.createElement('div'); - - // If no support for basic event stuff, unlikely to have touch support - if (!e.setAttribute || !e.removeAttribute) { - return false; - } - - e.setAttribute(startName, 'return;'); - if (typeof e[startName] === 'function') { - touchSupported = true; - } - - e.removeAttribute(startName); - e = null; - - return touchSupported; - }()) - }; -}()); - - -/* - * 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)/*->Point*/ { - return new L.Point( - (this.min.x + this.max.x) / 2, - (this.min.y + this.max.y) / 2, round); - }, - - 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; - } - 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) { - el.className = el.className.replace(/(\S+)\s*/g, function (w, match) { - if (match === name) { - return ''; - } - return w; - }).replace(/^\s+/, ''); - }, - - setOpacity: function (el, value) { - if (L.Browser.ie) { - el.style.filter = 'alpha(opacity=' + Math.round(value * 100) + ')'; - } else { - el.style.opacity = value; - } - }, - - //TODO refactor away this ugly translate/position mess - - 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) { - return L.DomUtil.TRANSLATE_OPEN + - point.x + 'px,' + point.y + 'px' + - L.DomUtil.TRANSLATE_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) { - el._leaflet_pos = point; - if (L.Browser.webkit) { - el.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString(point); - } else { - el.style.left = point.x + 'px'; - el.style.top = point.y + 'px'; - } - }, - - getPosition: function (el) { - return el._leaflet_pos; - } -}; - -L.Util.extend(L.DomUtil, { - TRANSITION: L.DomUtil.testProp(['transition', 'webkitTransition', 'OTransition', 'MozTransition', 'msTransition']), - TRANSFORM: L.DomUtil.testProp(['transformProperty', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']), - - TRANSLATE_OPEN: 'translate' + (L.Browser.webkit3d ? '3d(' : '('), - TRANSLATE_CLOSE: L.Browser.webkit3d ? ',0)' : ')' -}); - - -/* - 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 - extend: function (/*LatLng*/ latlng) { - if (!this._southWest && !this._northEast) { - this._southWest = new L.LatLng(latlng.lat, latlng.lng, true); - this._northEast = new L.LatLng(latlng.lat, latlng.lng, true); - } else { - this._southWest.lat = Math.min(latlng.lat, this._southWest.lat); - this._southWest.lng = Math.min(latlng.lng, this._southWest.lng); - this._northEast.lat = Math.max(latlng.lat, this._northEast.lat); - this._northEast.lng = Math.max(latlng.lng, this._northEast.lng); - } - }, - - 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(','); - } -}); - -//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*/ unbounded) /*-> LatLng*/ { - var d = L.LatLng.RAD_TO_DEG, - lng = point.x * d, - lat = (2 * Math.atan(Math.exp(point.y)) - (Math.PI / 2)) * d; - - return new L.LatLng(lat, lng, unbounded); - } -}; - - - -L.Projection.LonLat = { - project: function (latlng) { - return new L.Point(latlng.lng, latlng.lat); - }, - - unproject: function (point, unbounded) { - return new L.LatLng(point.y, point.x, unbounded); - } -}; - - - -L.CRS = { - latLngToPoint: function (/*LatLng*/ latlng, /*Number*/ scale)/*-> Point*/ { - var projectedPoint = this.projection.project(latlng); - return this.transformation._transform(projectedPoint, scale); - }, - - pointToLatLng: function (/*Point*/ point, /*Number*/ scale, /*(optional) Boolean*/ unbounded)/*-> LatLng*/ { - var untransformedPoint = this.transformation.untransform(point, scale); - return this.projection.unproject(untransformedPoint, unbounded); - //TODO get rid of 'unbounded' everywhere - }, - - project: function (latlng) { - return this.projection.project(latlng); - } -}; - - - -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: { - // projection - crs: L.CRS.EPSG3857 || L.CRS.EPSG4326, - scale: function (zoom) { - return 256 * Math.pow(2, zoom); - }, - - // state - center: null, - zoom: null, - layers: [], - - // interaction - dragging: true, - touchZoom: L.Browser.touch && !L.Browser.android, - scrollWheelZoom: !L.Browser.touch, - doubleClickZoom: true, - boxZoom: true, - - // controls - zoomControl: true, - attributionControl: true, - - // animation - fadeAnimation: L.DomUtil.TRANSITION && !L.Browser.android, - zoomAnimation: L.DomUtil.TRANSITION && !L.Browser.android && !L.Browser.mobileOpera, - - // misc - trackResize: true, - closePopupOnClick: true, - worldCopyJump: true - }, - - - // constructor - - initialize: function (id, options) { // (HTMLElement or String, Object) - L.Util.setOptions(this, options); - - this._container = L.DomUtil.get(id); - - if (this._container._leaflet) { - throw new Error("Map container is already initialized."); - } - this._container._leaflet = true; - - this._initLayout(); - - if (L.DomEvent) { - this._initEvents(); - if (L.Handler) { - this._initInteraction(); - } - if (L.Control) { - this._initControls(); - } - } - - if (this.options.maxBounds) { - this.setMaxBounds(this.options.maxBounds); - } - - var center = this.options.center, - zoom = this.options.zoom; - - if (center !== null && zoom !== null) { - this.setView(center, zoom, true); - } - - var layers = this.options.layers; - layers = (layers instanceof Array ? layers : [layers]); - this._tileLayersNum = 0; - this._initLayers(layers); - }, - - - // public methods that modify map state - - // replaced by animation-powered implementation in Map.PanAnimation.js - setView: function (center, zoom) { - // reset the map view - 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'); - this.fire('moveend'); - - return this; - }, - - 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, insertAtTheTop) { - var id = L.Util.stamp(layer); - - if (this._layers[id]) { - return this; - } - - this._layers[id] = layer; - - 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 getMaxZoom, getMinZoom in ILayer (instead of options) - - if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) { - this._tileLayersNum++; - layer.on('load', this._onTileLayerLoad, this); - } - if (this.attributionControl && layer.getAttribution) { - this.attributionControl.addAttribution(layer.getAttribution()); - } - - var onMapLoad = function () { - layer.onAdd(this, insertAtTheTop); - 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]) { - layer.onRemove(this); - delete this._layers[id]; - - if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) { - this._tileLayersNum--; - layer.off('load', this._onTileLayerLoad, this); - } - if (this.attributionControl && layer.getAttribution) { - this.attributionControl.removeAttribution(layer.getAttribution()); - } - - this.fire('layerremove', {layer: layer}); - } - return this; - }, - - 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; - } - - this._rawPanBy(oldSize.subtract(this.getSize()).divideBy(2, true)); - - this.fire('move'); - - clearTimeout(this._sizeTimer); - this._sizeTimer = setTimeout(L.Util.bind(function () { - this.fire('moveend'); - }, this), 200); - - return this; - }, - - - // public methods for getting map state - - getCenter: function (unbounded) { // (Boolean) - var viewHalf = this.getSize().divideBy(2), - centerPoint = this._getTopLeftPoint().add(viewHalf); - return this.unproject(centerPoint, this._zoom, unbounded); - }, - - getZoom: function () { - return this._zoom; - }, - - getBounds: function () { - var bounds = this.getPixelBounds(), - sw = this.unproject(new L.Point(bounds.min.x, bounds.max.y), this._zoom, true), - ne = this.unproject(new L.Point(bounds.max.x, bounds.min.y), this._zoom, true); - 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 = isNaN(this.options.maxZoom) ? Infinity : this.options.maxZoom, - z2 = this._layersMaxZoom || Infinity; - - return Math.min(z1, z2); - }, - - getBoundsZoom: function (bounds, inside) { // (LatLngBounds) - 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(nePoint.x - swPoint.x, 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(), - size = this.getSize(); - return new L.Bounds(topLeftPoint, topLeftPoint.add(size)); - }, - - getPixelOrigin: function () { - return this._initialTopLeftPoint; - }, - - getPanes: function () { - return this._panes; - }, - - - // conversion methods - - 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)); - }, - - containerPointToLayerPoint: function (point) { // (Point) - return point.subtract(L.DomUtil.getPosition(this._mapPane)); - }, - - layerPointToContainerPoint: function (point) { // (Point) - return point.add(L.DomUtil.getPosition(this._mapPane)); - }, - - layerPointToLatLng: function (point) { // (Point) - return this.unproject(point.add(this._initialTopLeftPoint)); - }, - - latLngToLayerPoint: function (latlng) { // (LatLng) - return this.project(latlng)._round()._subtract(this._initialTopLeftPoint); - }, - - project: function (latlng, zoom) { // (LatLng[, Number]) -> Point - zoom = (typeof zoom === 'undefined' ? this._zoom : zoom); - return this.options.crs.latLngToPoint(latlng, this.options.scale(zoom)); - }, - - unproject: function (point, zoom, unbounded) { // (Point[, Number, Boolean]) -> LatLng - zoom = (typeof zoom === 'undefined' ? this._zoom : zoom); - return this.options.crs.pointToLatLng(point, this.options.scale(zoom), unbounded); - }, - - - // private methods that modify map state - - _initLayout: function () { - var container = this._container; - - container.innerHTML = ''; - - container.className += ' leaflet-container'; - - if (this.options.fadeAnimation) { - container.className += ' leaflet-fade-anim'; - } - - var position = L.DomUtil.getStyle(container, 'position'); - if (position !== 'absolute' && position !== 'relative') { - 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'); - }, - - _createPane: function (className, container) { - return L.DomUtil.create('div', className, container || this._objectsPane); - }, - - _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 { - var offset = L.DomUtil.getPosition(this._mapPane); - this._initialTopLeftPoint._add(offset); - } - - 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'); - } - }, - - _initLayers: function (layers) { - this._layers = {}; - - var i, len; - - for (i = 0, len = layers.length; i < len; i++) { - this.addLayer(layers[i]); - } - }, - - _initControls: function () { - if (this.options.zoomControl) { - this.addControl(new L.Control.Zoom()); - } - if (this.options.attributionControl) { - this.attributionControl = new L.Control.Attribution(); - this.addControl(this.attributionControl); - } - }, - - _rawPanBy: function (offset) { - var mapPaneOffset = L.DomUtil.getPosition(this._mapPane); - L.DomUtil.setPosition(this._mapPane, mapPaneOffset.subtract(offset)); - }, - - - // map events - - _initEvents: function () { - L.DomEvent.addListener(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.addListener(this._container, events[i], this._fireMouseEvent, this); - } - - if (this.options.trackResize) { - L.DomEvent.addListener(window, 'resize', this._onResize, this); - } - }, - - _onResize: function () { - L.Util.requestAnimFrame(this.invalidateSize, this, false, this._container); - }, - - _onMouseClick: function (e) { - if (!this._loaded || (this.dragging && this.dragging.moved())) { - return; - } - - this.fire('pre' + e.type); - 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); - } - - this.fire(type, { - latlng: this.mouseEventToLatLng(e), - layerPoint: this.mouseEventToLayerPoint(e) - }); - }, - - _initInteraction: function () { - var handlers = { - dragging: L.Map.Drag, - touchZoom: L.Map.TouchZoom, - doubleClickZoom: L.Map.DoubleClickZoom, - scrollWheelZoom: L.Map.ScrollWheelZoom, - boxZoom: L.Map.BoxZoom - }; - - var i; - for (i in handlers) { - if (handlers.hasOwnProperty(i) && handlers[i]) { - this[i] = new handlers[i](this); - if (this.options[i]) { - this[i].enable(); - } - // TODO move enabling to handler contructor - } - } - }, - - _onTileLayerLoad: function () { - // 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 - - _getTopLeftPoint: function () { - if (!this._loaded) { - throw new Error('Set map center and zoom first.'); - } - - var offset = L.DomUtil.getPosition(this._mapPane); - return this._initialTopLeftPoint.subtract(offset); - }, - - _getNewTopLeftPoint: function (center) { - var viewHalf = this.getSize().divideBy(2); - return this.project(center).subtract(viewHalf).round(); - }, - - _limitZoom: function (zoom) { - var min = this.getMinZoom(); - var max = this.getMaxZoom(); - return Math.max(min, Math.min(max, zoom)); - } -}); - - - -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*/ unbounded) /*-> 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, unbounded); - } -}; - - - -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, - - unloadInvisibleTiles: L.Browser.mobile, - updateWhenIdle: L.Browser.mobile - }, - - initialize: function (url, options, urlParams) { - L.Util.setOptions(this, options); - - this._url = url; - this._urlParams = urlParams; - - if (typeof this.options.subdomains === 'string') { - this.options.subdomains = this.options.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, this); - - if (this.options.updateWhenIdle) { - map.on('moveend', this._update, this); - } else { - this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this); - map.on('move', this._limitedUpdate, this); - } - - this._reset(); - this._update(); - }, - - onRemove: function (map) { - this._map.getPanes().tilePane.removeChild(this._container); - this._container = null; - - this._map.off('viewreset', this._resetCallback, this); - - if (this.options.updateWhenIdle) { - this._map.off('moveend', this._update, this); - } else { - this._map.off('move', this._limitedUpdate, this); - } - }, - - getAttribution: function () { - return this.options.attribution; - }, - - setOpacity: function (opacity) { - this.options.opacity = opacity; - - this._setOpacity(opacity); - - // stupid webkit hack to force redrawing of tiles - if (L.Browser.webkit) { - for (var i in this._tiles) { - if (this._tiles.hasOwnProperty(i)) { - this._tiles[i].style.webkitTransform += ' translate(0,0)'; - } - } - } - }, - - _setOpacity: function (opacity) { - if (opacity < 1) { - L.DomUtil.setOpacity(this._container, opacity); - } - }, - - _initContainer: function () { - var tilePane = this._map.getPanes().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); - } - - this._setOpacity(this.options.opacity); - } - }, - - _resetCallback: function (e) { - this._reset(e.hard); - }, - - _reset: function (clearOldContainer) { - var key; - for (key in this._tiles) { - if (this._tiles.hasOwnProperty(key)) { - this.fire("tileunload", {tile: this._tiles[key]}); - } - } - this._tiles = {}; - - if (this.options.reuseTiles) { - this._unusedTiles = []; - } - - if (clearOldContainer && this._container) { - this._container.innerHTML = ""; - } - this._initContainer(); - }, - - _update: function () { - var bounds = this._map.getPixelBounds(), - tileSize = this.options.tileSize; - - 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(); - - for (var j = bounds.min.y; j <= bounds.max.y; j++) { - for (var i = bounds.min.x; i <= bounds.max.x; i++) { - if ((i + ':' + j) in this._tiles) { - continue; - } - queue.push(new L.Point(i, j)); - } - } - - // 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; - for (var 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, tile; - - 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) { - - tile = this._tiles[key]; - this.fire("tileunload", {tile: tile, url: tile.src}); - - // evil, don't do this! crashes Android 3, produces load errors, doesn't solve memory leaks - // this._tiles[key].src = ''; - - if (tile.parentNode === this._container) { - this._container.removeChild(tile); - } - if (this.options.reuseTiles) { - this._unusedTiles.push(this._tiles[key]); - } - delete this._tiles[key]; - } - } - } - }, - - _addTile: function (tilePoint, container) { - var tilePos = this._getTilePos(tilePoint), - zoom = this._map.getZoom(), - key = tilePoint.x + ':' + tilePoint.y, - tileLimit = Math.pow(2, this._getOffsetZoom(zoom)); - - // wrap tile coordinates - if (!this.options.continuousWorld) { - if (!this.options.noWrap) { - tilePoint.x = ((tilePoint.x % tileLimit) + tileLimit) % tileLimit; - } else if (tilePoint.x < 0 || tilePoint.x >= tileLimit) { - this._tilesToLoad--; - return; - } - - if (tilePoint.y < 0 || tilePoint.y >= tileLimit) { - this._tilesToLoad--; - return; - } - } - - // get unused tile - or create a new tile - var tile = this._getTile(); - L.DomUtil.setPosition(tile, tilePos); - - this._tiles[key] = tile; - - if (this.options.scheme === 'tms') { - tilePoint.y = tileLimit - tilePoint.y - 1; - } - - this._loadTile(tile, tilePoint, zoom); - - container.appendChild(tile); - }, - - _getOffsetZoom: function (zoom) { - zoom = this.options.zoomReverse ? this.options.maxZoom - zoom : zoom; - return zoom + this.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, - s = this.options.subdomains[(tilePoint.x + tilePoint.y) % subdomains.length]; - - return L.Util.template(this._url, L.Util.extend({ - s: s, - z: this._getOffsetZoom(zoom), - x: tilePoint.x, - y: tilePoint.y - }, this._urlParams)); - }, - - _createTileProto: function () { - this._tileImg = L.DomUtil.create('img', 'leaflet-tile'); - this._tileImg.galleryimg = 'no'; - - var tileSize = this.options.tileSize; - this._tileImg.style.width = tileSize + 'px'; - this._tileImg.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); - }, - - _tileOnLoad: function (e) { - var layer = this._layer; - - this.className += ' leaflet-tile-loaded'; - - layer.fire('tileload', {tile: this, url: this.src}); - - layer._tilesToLoad--; - if (!layer._tilesToLoad) { - layer.fire('load'); - } - }, - - _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; - } - } -}); - - -L.TileLayer.WMS = L.TileLayer.extend({ - defaultWmsParams: { - service: 'WMS', - request: 'GetMap', - version: '1.1.1', - layers: '', - styles: '', - format: 'image/jpeg', - transparent: false - }, - - initialize: function (/*String*/ url, /*Object*/ options) { - this._url = url; - - this.wmsParams = L.Util.extend({}, this.defaultWmsParams); - this.wmsParams.width = this.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)) { - this.wmsParams[i] = options[i]; - } - } - - L.Util.setOptions(this, options); - }, - - onAdd: function (map) { - var projectionKey = (parseFloat(this.wmsParams.version) >= 1.3 ? 'crs' : 'srs'); - this.wmsParams[projectionKey] = map.options.crs.code; - - L.TileLayer.prototype.onAdd.call(this, map); - }, - - getTileUrl: function (/*Point*/ tilePoint, /*Number*/ zoom)/*-> String*/ { - var tileSize = this.options.tileSize, - nwPoint = tilePoint.multiplyBy(tileSize), - sePoint = nwPoint.add(new L.Point(tileSize, tileSize)), - nwMap = this._map.unproject(nwPoint, this._zoom, true), - seMap = this._map.unproject(sePoint, this._zoom, true), - nw = this._map.options.crs.project(nwMap), - se = this._map.options.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 () { - for (var i in this._tiles) { - var tile = this._tiles[i]; - this._redrawTile(tile); - } - }, - - _redrawTile: function (tile) { - this.drawTile(tile, tile._tilePoint, tile._zoom); - }, - - _createTileProto: function () { - this._canvasProto = L.DomUtil.create('canvas', 'leaflet-tile'); - - var tileSize = this.options.tileSize; - this._canvasProto.width = tileSize; - this._canvasProto.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, - - initialize: function (/*String*/ url, /*LatLngBounds*/ bounds) { - this._url = url; - this._bounds = bounds; - }, - - onAdd: function (map) { - this._map = map; - - if (!this._image) { - this._initImage(); - } - - map.getPanes().overlayPane.appendChild(this._image); - - map.on('viewreset', this._reset, this); - this._reset(); - }, - - onRemove: function (map) { - map.getPanes().overlayPane.removeChild(this._image); - map.off('viewreset', this._reset, this); - }, - - _initImage: function () { - this._image = L.DomUtil.create('img', 'leaflet-image-layer'); - - this._image.style.visibility = 'hidden'; - //TODO opacity option - - //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 - }); - }, - - _reset: function () { - var topLeft = this._map.latLngToLayerPoint(this._bounds.getNorthWest()), - bottomRight = this._map.latLngToLayerPoint(this._bounds.getSouthEast()), - size = bottomRight.subtract(topLeft); - - L.DomUtil.setPosition(this._image, topLeft); - - this._image.style.width = size.x + 'px'; - this._image.style.height = size.y + 'px'; - }, - - _onImageLoad: function () { - this._image.style.visibility = ''; - this.fire('load'); - } -}); - - -L.Icon = L.Class.extend({ - iconUrl: L.ROOT_URL + 'images/marker.png', - shadowUrl: L.ROOT_URL + 'images/marker-shadow.png', - - iconSize: new L.Point(25, 41), - shadowSize: new L.Point(41, 41), - - iconAnchor: new L.Point(13, 41), - popupAnchor: new L.Point(0, -33), - - initialize: function (iconUrl) { - if (iconUrl) { - this.iconUrl = iconUrl; - } - }, - - createIcon: function () { - return this._createIcon('icon'); - }, - - createShadow: function () { - return this._createIcon('shadow'); - }, - - _createIcon: function (name) { - var size = this[name + 'Size'], - src = this[name + 'Url']; - if (!src && name === 'shadow') { - return null; - } - - var img; - if (!src) { - img = this._createDiv(); - } - else { - img = this._createImg(src); - } - - img.className = 'leaflet-marker-' + name; - - img.style.marginLeft = (-this.iconAnchor.x) + 'px'; - img.style.marginTop = (-this.iconAnchor.y) + 'px'; - - if (size) { - img.style.width = size.x + 'px'; - img.style.height = size.y + 'px'; - } - - return img; - }, - - _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; - }, - - _createDiv: function () { - return document.createElement('div'); - } -}); - - -/* - * 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(), - title: '', - clickable: true, - draggable: false, - zIndexOffset: 0 - }, - - initialize: function (latlng, options) { - L.Util.setOptions(this, options); - this._latlng = latlng; - }, - - onAdd: function (map) { - this._map = map; - - this._initIcon(); - - map.on('viewreset', this._reset, this); - this._reset(); - }, - - onRemove: function (map) { - this._removeIcon(); - - // TODO move to Marker.Popup.js - if (this.closePopup) { - this.closePopup(); - } - - this._map = null; - - map.off('viewreset', this._reset, this); - }, - - getLatLng: function () { - return this._latlng; - }, - - setLatLng: function (latlng) { - this._latlng = latlng; - if (this._icon) { - this._reset(); - - if (this._popup) { - this._popup.setLatLng(this._latlng); - } - } - }, - - setIcon: function (icon) { - if (this._map) { - this._removeIcon(); - } - - this.options.icon = icon; - - if (this._map) { - this._initIcon(); - this._reset(); - } - }, - - _initIcon: function () { - if (!this._icon) { - this._icon = this.options.icon.createIcon(); - - if (this.options.title) { - this._icon.title = this.options.title; - } - - this._initInteraction(); - } - if (!this._shadow) { - this._shadow = this.options.icon.createShadow(); - } - - this._map._panes.markerPane.appendChild(this._icon); - if (this._shadow) { - this._map._panes.shadowPane.appendChild(this._shadow); - } - }, - - _removeIcon: function () { - this._map._panes.markerPane.removeChild(this._icon); - if (this._shadow) { - this._map._panes.shadowPane.removeChild(this._shadow); - } - this._icon = this._shadow = null; - }, - - _reset: function () { - var pos = this._map.latLngToLayerPoint(this._latlng).round(); - - L.DomUtil.setPosition(this._icon, pos); - if (this._shadow) { - L.DomUtil.setPosition(this._shadow, pos); - } - - this._icon.style.zIndex = pos.y + this.options.zIndexOffset; - }, - - _initInteraction: function () { - if (this.options.clickable) { - this._icon.className += ' leaflet-clickable'; - - L.DomEvent.addListener(this._icon, 'click', this._onMouseClick, this); - - var events = ['dblclick', 'mousedown', 'mouseover', 'mouseout']; - for (var i = 0; i < events.length; i++) { - L.DomEvent.addListener(this._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; } - this.fire(e.type); - }, - - _fireMouseEvent: function (e) { - this.fire(e.type); - L.DomEvent.stopPropagation(e); - } -}); - - - -L.Popup = L.Class.extend({ - includes: L.Mixin.Events, - - options: { - minWidth: 50, - maxWidth: 300, - 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'; - - this._map._panes.popupPane.appendChild(this._container); - this._map.on('viewreset', this._updatePosition, this); - - if (this._map.options.closePopupOnClick) { - this._map.on('preclick', this._close, this); - } - - this._update(); - - this._container.style.opacity = '1'; //TODO fix ugly opacity hack - - this._opened = true; - }, - - onRemove: function (map) { - map._panes.popupPane.removeChild(this._container); - L.Util.falseFn(this._container.offsetWidth); - - map.off('viewreset', this._updatePosition, this); - map.off('click', this._close, this); - - this._container.style.opacity = '0'; - - this._opened = false; - }, - - setLatLng: function (latlng) { - this._latlng = latlng; - if (this._opened) { - this._update(); - } - return this; - }, - - setContent: function (content) { - this._content = content; - if (this._opened) { - this._update(); - } - return this; - }, - - _close: function () { - if (this._opened) { - this._map.closePopup(); - } - }, - - _initLayout: function () { - this._container = L.DomUtil.create('div', 'leaflet-popup ' + this.options.className); - - if (this.options.closeButton) { - this._closeButton = L.DomUtil.create('a', 'leaflet-popup-close-button', this._container); - this._closeButton.href = '#close'; - L.DomEvent.addListener(this._closeButton, 'click', this._onCloseButtonClick, this); - } - - this._wrapper = L.DomUtil.create('div', 'leaflet-popup-content-wrapper', this._container); - L.DomEvent.disableClickPropagation(this._wrapper); - this._contentNode = L.DomUtil.create('div', 'leaflet-popup-content', this._wrapper); - - this._tipContainer = L.DomUtil.create('div', 'leaflet-popup-tip-container', this._container); - this._tip = L.DomUtil.create('div', 'leaflet-popup-tip', this._tipContainer); - }, - - _update: function () { - 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 { - this._contentNode.innerHTML = ''; - this._contentNode.appendChild(this._content); - } - }, - - _updateLayout: function () { - this._container.style.width = ''; - this._container.style.whiteSpace = 'nowrap'; - - var width = this._container.offsetWidth; - - this._container.style.width = (width > this.options.maxWidth ? - this.options.maxWidth : (width < this.options.minWidth ? this.options.minWidth : width)) + 'px'; - this._container.style.whiteSpace = ''; - - this._containerWidth = this._container.offsetWidth; - }, - - _updatePosition: function () { - var pos = this._map.latLngToLayerPoint(this._latlng); - - this._containerBottom = -pos.y - this.options.offset.y; - this._containerLeft = pos.x - Math.round(this._containerWidth / 2) + this.options.offset.x; - - this._container.style.bottom = this._containerBottom + 'px'; - this._container.style.left = this._containerLeft + 'px'; - }, - - _adjustPan: function () { - if (!this.options.autoPan) { - return; - } - - var containerHeight = this._container.offsetHeight, - layerPos = new L.Point( - this._containerLeft, - -containerHeight - this._containerBottom), - containerPos = this._map.layerPointToContainerPoint(layerPos), - adjustOffset = new L.Point(0, 0), - padding = this.options.autoPanPadding, - size = this._map.getSize(); - - if (containerPos.x < 0) { - adjustOffset.x = containerPos.x - padding.x; - } - if (containerPos.x + this._containerWidth > size.x) { - adjustOffset.x = containerPos.x + this._containerWidth - size.x + padding.x; - } - if (containerPos.y < 0) { - adjustOffset.y = containerPos.y - padding.y; - } - if (containerPos.y + containerHeight > size.y) { - adjustOffset.y = containerPos.y + containerHeight - size.y + padding.y; - } - - if (adjustOffset.x || adjustOffset.y) { - this._map.panBy(adjustOffset); - } - }, - - _onCloseButtonClick: function (e) { - this._close(); - L.DomEvent.stop(e); - } -}); - - -/* - * Popup extension to L.Marker, adding openPopup & bindPopup methods. - */ - -L.Marker.include({ - openPopup: function () { - this._popup.setLatLng(this._latlng); - if (this._map) { - this._map.openPopup(this._popup); - } - - return this; - }, - - closePopup: function () { - if (this._popup) { - this._popup._close(); - } - return this; - }, - - bindPopup: function (content, options) { - options = L.Util.extend({offset: this.options.icon.popupAnchor}, options); - - if (!this._popup) { - this.on('click', this.openPopup, this); - } - - this._popup = new L.Popup(options, this); - this._popup.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; - this.addLayer(popup); - this.fire('popupopen', { popup: this._popup }); - - return this; - }, - - closePopup: function () { - if (this._popup) { - this.removeLayer(this._popup); - this.fire('popupclose', { popup: this._popup }); - this._popup = null; - } - 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 = {}; - - if (layers) { - for (var 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); - delete this._map; - }, - - _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); - } - }, - - bindPopup: function (content) { - this._popupContent = content; - - return this.invoke('bindPopup', content); - }, - - setStyle: function (style) { - return this.invoke('setStyle', style); - }, - - _events: ['click', 'dblclick', 'mouseover', 'mouseout'], - - _initEvents: function (layer) { - for (var i = 0, len = this._events.length; i < len; i++) { - layer.on(this._events[i], 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, - - // TODO remove this, as all paths now update on moveend - updateOnMoveEnd: 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, this); - - this._updateTrigger = this.options.updateOnMoveEnd ? 'moveend' : 'viewreset'; - map.on(this._updateTrigger, this._updatePath, this); - }, - - onRemove: function (map) { - this._map = null; - - map._pathRoot.removeChild(this._container); - - map.off('viewreset', this.projectLatlngs, this); - map.off(this._updateTrigger, 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(); - } - } -}); - -L.Map.include({ - _updatePathViewport: function () { - var p = L.Path.CLIP_PADDING, - size = this.getSize(), - //TODO this._map._getMapPanePos() - 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, - _createElement: function (name) { - return document.createElementNS(L.Path.SVG_NS, name); - } - }, - - getPathString: function () { - // form path string here - }, - - _initElements: function () { - this._map._initPathRoot(); - this._initPath(); - this._initStyle(); - }, - - _initPath: function () { - this._container = L.Path._createElement('g'); - - this._path = L.Path._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'); - } else { - this._path.setAttribute('fill', 'none'); - } - this._updateStyle(); - }, - - _updateStyle: function () { - if (this.options.stroke) { - this._path.setAttribute('stroke', this.options.color); - this._path.setAttribute('stroke-opacity', this.options.opacity); - this._path.setAttribute('stroke-width', this.options.weight); - } - if (this.options.fill) { - this._path.setAttribute('fill', this.options.fillColor || this.options.color); - this._path.setAttribute('fill-opacity', this.options.fillOpacity); - } - }, - - _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.vml) { - this._path.setAttribute('class', 'leaflet-clickable'); - } - - L.DomEvent.addListener(this._container, 'click', this._onMouseClick, this); - - var events = ['dblclick', 'mousedown', 'mouseover', 'mouseout', 'mousemove']; - for (var i = 0; i < events.length; i++) { - L.DomEvent.addListener(this._container, events[i], this._fireMouseEvent, this); - } - } - }, - - _onMouseClick: function (e) { - if (this._map.dragging && this._map.dragging.moved()) { - return; - } - this._fireMouseEvent(e); - }, - - _fireMouseEvent: function (e) { - if (!this.hasEventListeners(e.type)) { - return; - } - this.fire(e.type, { - latlng: this._map.mouseEventToLatLng(e), - layerPoint: this._map.mouseEventToLayerPoint(e) - }); - L.DomEvent.stopPropagation(e); - } -}); - -L.Map.include({ - _initPathRoot: function () { - if (!this._pathRoot) { - this._pathRoot = L.Path._createElement('svg'); - this._panes.overlayPane.appendChild(this._pathRoot); - - this.on('moveend', this._updateSvgViewport); - this._updateSvgViewport(); - } - }, - - _updateSvgViewport: function () { - 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 - // Unfortunately I haven't found a good workaround for this yet - if (L.Browser.webkit) { - 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.webkit) { - 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 d = document.createElement('div'), s; - d.innerHTML = ''; - s = d.firstChild; - s.style.behavior = 'url(#default#VML)'; - - return (s && (typeof s.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 () { - this._container = L.Path._createElement('shape'); - this._container.className += ' leaflet-vml-shape' + - (this.options.clickable ? ' leaflet-clickable' : ''); - this._container.coordsize = '1 1'; - - this._path = L.Path._createElement('path'); - this._container.appendChild(this._path); - - this._map._pathRoot.appendChild(this._container); - }, - - _initStyle: function () { - if (this.options.stroke) { - this._stroke = L.Path._createElement('stroke'); - this._stroke.endcap = 'round'; - this._container.appendChild(this._stroke); - } else { - this._container.stroked = false; - } - if (this.options.fill) { - this._container.filled = true; - this._fill = L.Path._createElement('fill'); - this._container.appendChild(this._fill); - } else { - this._container.filled = false; - } - this._updateStyle(); - }, - - _updateStyle: function () { - if (this.options.stroke) { - this._stroke.weight = this.options.weight + 'px'; - this._stroke.color = this.options.color; - this._stroke.opacity = this.options.opacity; - } - if (this.options.fill) { - this._fill.color = this.options.fillColor || this.options.color; - this._fill.opacity = this.options.fillOpacity; - } - }, - - _updatePath: function () { - this._container.style.display = 'none'; - this._path.v = this.getPathString() + ' '; // the space fixes IE empty path string bug - this._container.style.display = ''; - } -}); - -L.Map.include(L.Browser.svg || !L.Browser.vml ? {} : { - _initPathRoot: function () { - if (!this._pathRoot) { - this._pathRoot = document.createElement('div'); - this._pathRoot.className = 'leaflet-vml-container'; - this._panes.overlayPane.appendChild(this._pathRoot); - - this.on('moveend', this._updatePathViewport); - this._updatePathViewport(); - } - } -}); - - -/* - * 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; - }, - - 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, - - updateOnMoveEnd: true - }, - - 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; - this._redraw(); - return this; - }, - - addLatLng: function (latlng) { - this._latlngs.push(latlng); - this._redraw(); - return this; - }, - - 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 point = L.LineUtil._sqClosestPointOnSegment(p, p1, p2); - if (point._sqDist < minDistance) { - minDistance = point._sqDist; - minPoint = point; - } - } - } - 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; - }, - - _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)); - } - } - }); - } - - L.MultiPolyline = createMulti(L.Polyline); - L.MultiPolygon = createMulti(L.Polygon); -}()); - - -/* - * 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; - this._redraw(); - return this; - }, - - setRadius: function (radius) { - this._mRadius = radius; - this._redraw(); - return this; - }, - - projectLatlngs: function () { - var equatorLength = 40075017, - hLength = equatorLength * Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat); - - var lngSpan = (this._mRadius / hLength) * 360, - latlng2 = new L.LatLng(this._latlng.lat, this._latlng.lng - lngSpan, true), - point2 = this._map.latLngToLayerPoint(latlng2); - - this._point = this._map.latLngToLayerPoint(this._latlng); - this._radius = Math.round(this._point.x - point2.x); - }, - - 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); - } - }, - - _checkIfEmpty: function () { - 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; - this._redraw(); - return this; - } -}); - - -/* - * 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 - }, - - options: { - updateOnMoveEnd: true - }, - - _initElements: function () { - this._map._initPathRoot(); - this._ctx = this._map._canvasCtx; - }, - - _updateStyle: function () { - if (this.options.stroke) { - this._ctx.lineWidth = this.options.weight; - this._ctx.strokeStyle = this.options.color; - } - if (this.options.fill) { - this._ctx.fillStyle = this.options.fillColor || this.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; - } - - this._drawPath(); - - this._ctx.save(); - - this._updateStyle(); - - var opacity = this.options.opacity, - fillOpacity = this.options.fillOpacity; - - if (this.options.fill) { - if (fillOpacity < 1) { - this._ctx.globalAlpha = fillOpacity; - } - this._ctx.fill(); - } - - if (this.options.stroke) { - if (opacity < 1) { - this._ctx.globalAlpha = opacity; - } - this._ctx.stroke(); - } - - this._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); - map.off(this._updateTrigger, this._updatePath, this); - map.fire(this._updateTrigger); - } -}); - -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); - - this.on('moveend', this._updateCanvasViewport); - this._updateCanvasViewport(); - } - }, - - _updateCanvasViewport: function () { - this._updatePathViewport(); - - var vp = this._pathViewport, - min = vp.min, - size = vp.max.subtract(min), - root = this._pathRoot; - - //TODO check if it's 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.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); - }, - - _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) { - if (geojson.features) { - for (var i = 0, len = geojson.features.length; i < len; i++) { - this.addGeoJSON(geojson.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 - }); - - this.addLayer(layer); - } -}); - -L.Util.extend(L.GeoJSON, { - geometryToLayer: function (geometry, pointToLayer) { - var coords = geometry.coordinates, - latlng, latlngs, - i, len, - layer, - layers = []; - - 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 (/*Array*/ coords, /*Boolean*/ reverse)/*: LatLng*/ { - var lat = parseFloat(coords[reverse ? 0 : 1]), - lng = parseFloat(coords[reverse ? 1 : 0]); - return new L.LatLng(lat, lng, true); - }, - - coordsToLatLngs: function (/*Array*/ coords, /*Number*/ levelsDeep, /*Boolean*/ reverse)/*: Array*/ { - var latlng, latlngs = [], - i, len = coords.length; - - for (i = 0; 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 (/*HTMLElement*/ obj, /*String*/ type, /*Function*/ fn, /*Object*/ context) { - var id = L.Util.stamp(fn), - key = '_leaflet_' + type + id; - - if (obj[key]) { - return; - } - - var handler = function (e) { - return fn.call(context || obj, e || L.DomEvent._getEvent()); - }; - - if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) { - 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')) { - var 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; - }, - - removeListener: function (/*HTMLElement*/ obj, /*String*/ type, /*Function*/ fn) { - 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; - }, - - _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 */ // evil magic for IE - _getEvent: function () { - 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 */ - - stopPropagation: function (/*Event*/ e) { - if (e.stopPropagation) { - e.stopPropagation(); - } else { - e.cancelBubble = true; - } - }, - - disableClickPropagation: function (/*HTMLElement*/ el) { - L.DomEvent.addListener(el, L.Draggable.START, L.DomEvent.stopPropagation); - L.DomEvent.addListener(el, 'click', L.DomEvent.stopPropagation); - L.DomEvent.addListener(el, 'dblclick', L.DomEvent.stopPropagation); - }, - - preventDefault: function (/*Event*/ e) { - if (e.preventDefault) { - e.preventDefault(); - } else { - e.returnValue = false; - } - }, - - stop: function (e) { - L.DomEvent.preventDefault(e); - L.DomEvent.stopPropagation(e); - }, - - getMousePosition: function (e, container) { - var x = e.pageX ? e.pageX : e.clientX + - document.body.scrollLeft + document.documentElement.scrollLeft, - y = e.pageY ? e.pageY : e.clientY + - document.body.scrollTop + document.documentElement.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; - } -}; - - - -/* - * 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.addListener(this._dragStartTarget, L.Draggable.START, this._onDown, this); - this._enabled = true; - }, - - disable: function () { - if (!this._enabled) { - return; - } - L.DomEvent.removeListener(this._dragStartTarget, L.Draggable.START, this._onDown); - this._enabled = false; - }, - - _onDown: function (e) { - if ((!L.Browser.touch && e.shiftKey) || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { - return; - } - - if (e.touches && e.touches.length > 1) { - 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.addListener(document, L.Draggable.MOVE, this._onMove, this); - L.DomEvent.addListener(document, L.Draggable.END, this._onUp, this); - }, - - _onMove: function (e) { - if (e.touches && e.touches.length > 1) { - return; - } - - L.DomEvent.preventDefault(e); - - var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e); - - if (!this._moved) { - this.fire('dragstart'); - this._moved = true; - } - this._moving = true; - - var newPoint = new L.Point(first.clientX, first.clientY); - this._newPos = this._startPos.add(newPoint).subtract(this._startPoint); - - 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 (e.changedTouches) { - var first = e.changedTouches[0], - el = first.target, - dist = (this._newPos && this._newPos.distanceTo(this._startPos)) || 0; - - if (el.tagName.toLowerCase() === 'a') { - el.className = el.className.replace(' leaflet-active', ''); - } - - if (dist < L.Draggable.TAP_TOLERANCE) { - this._simulateEvent('click', first); - } - } - - if (!L.Browser.touch) { - L.DomUtil.enableTextSelection(); - this._restoreCursor(); - } - - L.DomEvent.removeListener(document, L.Draggable.MOVE, this._onMove); - L.DomEvent.removeListener(document, L.Draggable.END, this._onUp); - - if (this._moved) { - this.fire('dragend'); - } - this._moving = false; - }, - - _setMovingCursor: function () { - this._bodyCursor = document.body.style.cursor; - document.body.style.cursor = 'move'; - }, - - _restoreCursor: function () { - document.body.style.cursor = this._bodyCursor; - }, - - _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.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, this) - .on('drag', this._onDrag, this) - .on('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 () { - this._map - .fire('movestart') - .fire('dragstart'); - }, - - _onDrag: function () { - 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 () { - var map = this._map, - worldWidth = map.options.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; - - map - .fire('moveend') - .fire('dragend'); - - if (map.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.Handler.DoubleClickZoom is used internally by L.Map to add double-click zooming. - */ - -L.Map.DoubleClickZoom = L.Handler.extend({ - addHooks: function () { - this._map.on('dblclick', this._onDoubleClick); - // TODO remove 3d argument? - }, - - removeHooks: function () { - this._map.off('dblclick', this._onDoubleClick); - }, - - _onDoubleClick: function (e) { - this.setView(e.latlng, this._zoom + 1); - } -}); - - -/* - * L.Handler.ScrollWheelZoom is used internally by L.Map to enable mouse scroll wheel zooming on the map. - */ - -L.Map.ScrollWheelZoom = L.Handler.extend({ - addHooks: function () { - L.DomEvent.addListener(this._map._container, 'mousewheel', this._onWheelScroll, this); - this._delta = 0; - }, - - removeHooks: function () { - L.DomEvent.removeListener(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 newCenter = this._getCenterForScrollWheelZoom(this._lastMousePos, delta), - newZoom = zoom + delta; - - map.setView(newCenter, newZoom); - }, - - _getCenterForScrollWheelZoom: function (mousePos, delta) { - var map = this._map, - centerPoint = map.getPixelBounds().getCenter(), - viewHalf = map.getSize().divideBy(2), - centerOffset = mousePos.subtract(viewHalf).multiplyBy(1 - Math.pow(2, -delta)), - newCenterPoint = centerPoint.add(centerOffset); - - return map.unproject(newCenterPoint, map._zoom, true); - } -}); - - -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.TouchZoom = L.Handler.extend({ - addHooks: function () { - L.DomEvent.addListener(this._map._container, 'touchstart', this._onTouchStart, this); - }, - - removeHooks: function () { - L.DomEvent.removeListener(this._map._container, 'touchstart', this._onTouchStart, this); - }, - - _onTouchStart: function (e) { - if (!e.touches || e.touches.length !== 2 || this._map._animatingZoom) { - return; - } - - var p1 = this._map.mouseEventToLayerPoint(e.touches[0]), - p2 = this._map.mouseEventToLayerPoint(e.touches[1]), - viewCenter = this._map.containerPointToLayerPoint(this._map.getSize().divideBy(2)); - - this._startCenter = p1.add(p2).divideBy(2, true); - this._startDist = p1.distanceTo(p2); - //this._startTransform = this._map._mapPane.style.webkitTransform; - - this._moved = false; - this._zooming = true; - - this._centerOffset = viewCenter.subtract(this._startCenter); - - L.DomEvent.addListener(document, 'touchmove', this._onTouchMove, this); - L.DomEvent.addListener(document, 'touchend', this._onTouchEnd, this); - - L.DomEvent.preventDefault(e); - }, - - _onTouchMove: function (e) { - if (!e.touches || e.touches.length !== 2) { - return; - } - - if (!this._moved) { - this._map._mapPane.className += ' leaflet-zoom-anim'; - - this._map - .fire('zoomstart') - .fire('movestart') - ._prepareTileBg(); - - this._moved = true; - } - - var p1 = this._map.mouseEventToLayerPoint(e.touches[0]), - p2 = this._map.mouseEventToLayerPoint(e.touches[1]); - - this._scale = p1.distanceTo(p2) / this._startDist; - this._delta = p1.add(p2).divideBy(2, true).subtract(this._startCenter); - - // 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 - - this._map._tileBg.style.webkitTransform = [ - L.DomUtil.getTranslateString(this._delta), - L.DomUtil.getScaleString(this._scale, this._startCenter) - ].join(" "); - - L.DomEvent.preventDefault(e); - }, - - _onTouchEnd: function (e) { - if (!this._moved || !this._zooming) { - return; - } - this._zooming = false; - - var oldZoom = this._map.getZoom(), - floatZoomDelta = Math.log(this._scale) / Math.LN2, - roundZoomDelta = (floatZoomDelta > 0 ? Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)), - zoom = this._map._limitZoom(oldZoom + roundZoomDelta), - zoomDelta = zoom - oldZoom, - centerOffset = this._centerOffset.subtract(this._delta).divideBy(this._scale), - centerPoint = this._map.getPixelOrigin().add(this._startCenter).add(centerOffset), - center = this._map.unproject(centerPoint); - - L.DomEvent.removeListener(document, 'touchmove', this._onTouchMove); - L.DomEvent.removeListener(document, 'touchend', this._onTouchEnd); - - var finalScale = Math.pow(2, zoomDelta); - - this._map._runAnimation(center, zoom, finalScale / this._scale, this._startCenter.add(centerOffset)); - } -}); - - -/* - * L.Handler.ShiftDragZoom is used internally by L.Map to add shift-drag zoom (zoom to a selected bounding box). - */ - -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.addListener(this._container, 'mousedown', this._onMouseDown, this); - }, - - removeHooks: function () { - L.DomEvent.removeListener(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 move cursor to styles - this._container.style.cursor = 'crosshair'; - - L.DomEvent.addListener(document, 'mousemove', this._onMouseMove, this); - L.DomEvent.addListener(document, 'mouseup', this._onMouseUp, this); - - L.DomEvent.preventDefault(e); - }, - - _onMouseMove: function (e) { - var layerPoint = this._map.mouseEventToLayerPoint(e), - dx = layerPoint.x - this._startLayerPoint.x, - dy = layerPoint.y - this._startLayerPoint.y; - - var newX = Math.min(layerPoint.x, this._startLayerPoint.x), - newY = Math.min(layerPoint.y, this._startLayerPoint.y), - newPos = new L.Point(newX, newY); - - L.DomUtil.setPosition(this._box, newPos); - - this._box.style.width = (Math.abs(dx) - 4) + 'px'; - this._box.style.height = (Math.abs(dy) - 4) + 'px'; - }, - - _onMouseUp: function (e) { - this._pane.removeChild(this._box); - this._container.style.cursor = ''; - - L.DomUtil.enableTextSelection(); - - L.DomEvent.removeListener(document, 'mousemove', this._onMouseMove); - L.DomEvent.removeListener(document, 'mouseup', this._onMouseUp); - - var layerPoint = this._map.mouseEventToLayerPoint(e); - - var bounds = new L.LatLngBounds( - this._map.layerPointToLatLng(this._startLayerPoint), - this._map.layerPointToLatLng(layerPoint)); - - this._map.fitBounds(bounds); - } -}); - - -/* - * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable. - */ - -L.Handler.MarkerDrag = L.Handler.extend({ - initialize: function (marker) { - this._marker = marker; - }, - - addHooks: function () { - var icon = this._marker._icon; - if (!this._draggable) { - this._draggable = new L.Draggable(icon, icon); - - this._draggable - .on('dragstart', this._onDragStart, this) - .on('drag', this._onDrag, this) - .on('dragend', this._onDragEnd, this); - } - this._draggable.enable(); - }, - - 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.Control = {}; - -L.Control.Position = { - TOP_LEFT: 'topLeft', - TOP_RIGHT: 'topRight', - BOTTOM_LEFT: 'bottomLeft', - BOTTOM_RIGHT: 'bottomRight' -}; - - -L.Map.include({ - addControl: function (control) { - control.onAdd(this); - - var pos = control.getPosition(), - corner = this._controlCorners[pos], - container = control.getContainer(); - - L.DomUtil.addClass(container, 'leaflet-control'); - - if (pos.indexOf('bottom') !== -1) { - corner.insertBefore(container, corner.firstChild); - } else { - corner.appendChild(container); - } - return this; - }, - - removeControl: function (control) { - var pos = control.getPosition(), - corner = this._controlCorners[pos], - container = control.getContainer(); - - corner.removeChild(container); - - if (control.onRemove) { - control.onRemove(this); - } - return this; - }, - - _initControlPos: function () { - var corners = this._controlCorners = {}, - classPart = 'leaflet-', - top = classPart + 'top', - bottom = classPart + 'bottom', - left = classPart + 'left', - right = classPart + 'right', - controlContainer = L.DomUtil.create('div', classPart + 'control-container', this._container); - - if (L.Browser.touch) { - controlContainer.className += ' ' + classPart + 'big-buttons'; - } - - corners.topLeft = L.DomUtil.create('div', top + ' ' + left, controlContainer); - corners.topRight = L.DomUtil.create('div', top + ' ' + right, controlContainer); - corners.bottomLeft = L.DomUtil.create('div', bottom + ' ' + left, controlContainer); - corners.bottomRight = L.DomUtil.create('div', bottom + ' ' + right, controlContainer); - } -}); - - - -L.Control.Zoom = L.Class.extend({ - onAdd: function (map) { - this._map = map; - this._container = L.DomUtil.create('div', 'leaflet-control-zoom'); - - this._zoomInButton = this._createButton( - 'Zoom in', 'leaflet-control-zoom-in', this._map.zoomIn, this._map); - this._zoomOutButton = this._createButton( - 'Zoom out', 'leaflet-control-zoom-out', this._map.zoomOut, this._map); - - this._container.appendChild(this._zoomInButton); - this._container.appendChild(this._zoomOutButton); - }, - - getContainer: function () { - return this._container; - }, - - getPosition: function () { - return L.Control.Position.TOP_LEFT; - }, - - _createButton: function (title, className, fn, context) { - var link = document.createElement('a'); - link.href = '#'; - link.title = title; - link.className = className; - - L.DomEvent.disableClickPropagation(link); - L.DomEvent.addListener(link, 'click', L.DomEvent.preventDefault); - L.DomEvent.addListener(link, 'click', fn, context); - - return link; - } -}); - - -L.Control.Attribution = L.Class.extend({ - initialize: function (prefix) { - this._prefix = prefix || 'Powered by Leaflet'; - this._attributions = {}; - }, - - onAdd: function (map) { - this._container = L.DomUtil.create('div', 'leaflet-control-attribution'); - L.DomEvent.disableClickPropagation(this._container); - this._map = map; - this._update(); - }, - - getPosition: function () { - return L.Control.Position.BOTTOM_RIGHT; - }, - - getContainer: function () { - return this._container; - }, - - setPrefix: function (prefix) { - this._prefix = prefix; - this._update(); - }, - - addAttribution: function (text) { - if (!text) { - return; - } - this._attributions[text] = true; - this._update(); - }, - - removeAttribution: function (text) { - if (!text) { - return; - } - delete this._attributions[text]; - this._update(); - }, - - _update: function () { - if (!this._map) { - return; - } - - var attribs = []; - - for (var i in this._attributions) { - if (this._attributions.hasOwnProperty(i)) { - attribs.push(i); - } - } - - var prefixAndAttribs = []; - if (this._prefix) { - prefixAndAttribs.push(this._prefix); - } - if (attribs.length) { - prefixAndAttribs.push(attribs.join(', ')); - } - - this._container.innerHTML = prefixAndAttribs.join(' — '); - } -}); - - - -L.Control.Layers = L.Class.extend({ - options: { - collapsed: !L.Browser.touch - }, - - 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._map = map; - - this._initLayout(); - this._update(); - }, - - getContainer: function () { - return this._container; - }, - - getPosition: function () { - return L.Control.Position.TOP_RIGHT; - }, - - 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 () { - this._container = L.DomUtil.create('div', 'leaflet-control-layers'); - L.DomEvent.disableClickPropagation(this._container); - - this._form = L.DomUtil.create('form', 'leaflet-control-layers-list'); - - if (this.options.collapsed) { - L.DomEvent.addListener(this._container, 'mouseover', this._expand, this); - L.DomEvent.addListener(this._container, 'mouseout', this._collapse, this); - - var link = this._layersLink = L.DomUtil.create('a', 'leaflet-control-layers-toggle'); - link.href = '#'; - link.title = 'Layers'; - - L.DomEvent.addListener(link, 'focus', this._expand, this); - L.DomEvent.addListener(this._map, L.Draggable.START, this._collapse, this); - // TODO keyboard accessibility - - this._container.appendChild(link); - } else { - this._expand(); - } - - this._baseLayersList = L.DomUtil.create('div', 'leaflet-control-layers-base', this._form); - this._separator = L.DomUtil.create('div', 'leaflet-control-layers-separator', this._form); - this._overlaysList = L.DomUtil.create('div', 'leaflet-control-layers-overlays', this._form); - - this._container.appendChild(this._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.checked = this._map.hasLayer(obj.layer); - input.layerId = L.Util.stamp(obj.layer); - - L.DomEvent.addListener(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.webkit ? L.DomUtil.TRANSFORM : 'top, left' - } - }; - }()), - - options: { - fakeStepInterval: 100 - }, - - initialize: function (/*HTMLElement*/ el, /*Object*/ options) { - this._el = el; - L.Util.setOptions(this, options); - - L.DomEvent.addListener(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 () { - if (this._inProgress) { - this._inProgress = false; - clearInterval(this._timer); - - this._el.style[L.Transition.PROPERTY] = 'none'; - - this.fire('step'); - 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) { - // difference between the new and current centers in pixels - var offset = this._getNewTopLeftPoint(center).subtract(this._getTopLeftPoint()); - - center = new L.LatLng(center.lat, center.lng); - - var done = (zoomChanged ? - !!this._zoomToIfCenterInView && this._zoomToIfCenterInView(center, zoom, offset) : - this._panByIfClose(offset)); - - // exit if animated pan or zoom started - if (done) { - return this; - } - } - - // reset the map view - this._resetView(center, zoom); - - return this; - }, - - panBy: function (offset) { - if (!(offset.x || offset.y)) { - return this; - } - - if (!this._panTransition) { - this._panTransition = new L.Transition(this._mapPane, {duration: 0.3}); - - this._panTransition.on('step', this._onPanTransitionStep, this); - this._panTransition.on('end', this._onPanTransitionEnd, this); - } - this.fire('movestart'); - - this._panTransition.run({ - position: L.DomUtil.getPosition(this._mapPane).subtract(offset) - }); - - return this; - }, - - _onPanTransitionStep: function () { - this.fire('move'); - }, - - _onPanTransitionEnd: function () { - this.fire('moveend'); - }, - - _panByIfClose: function (offset) { - 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.include(!L.DomUtil.TRANSITION ? {} : { - _zoomToIfCenterInView: function (center, zoom, centerOffset) { - - if (this._animatingZoom) { - return true; - } - if (!this.options.zoomAnimation) { - return false; - } - - var zoomDelta = zoom - this._zoom, - scale = Math.pow(2, zoomDelta), - offset = centerOffset.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'); - - var centerPoint = this.containerPointToLayerPoint(this.getSize().divideBy(2)), - origin = centerPoint.add(offset); - - this._prepareTileBg(); - - this._runAnimation(center, zoom, scale, origin); - - return true; - }, - - - _runAnimation: function (center, zoom, scale, origin) { - this._animatingZoom = true; - - this._animateToCenter = center; - this._animateToZoom = zoom; - - var transform = L.DomUtil.TRANSFORM; - - //dumb FireFox hack, I have no idea why this magic zero translate fixes the scale transition problem - if (L.Browser.gecko || window.opera) { - this._tileBg.style[transform] += ' translate(0,0)'; - } - - var scaleStr; - - // Android 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.android) { - this._tileBg.style[transform + 'Origin'] = origin.x + 'px ' + origin.y + 'px'; - scaleStr = 'scale(' + scale + ')'; - } else { - scaleStr = L.DomUtil.getScaleString(scale, origin); - } - - L.Util.falseFn(this._tileBg.offsetWidth); //hack to make sure transform is updated before running animation - - var options = {}; - options[transform] = this._tileBg.style[transform] + ' ' + scaleStr; - this._tileBg.transition.run(options); - }, - - _prepareTileBg: function () { - if (!this._tileBg) { - this._tileBg = this._createPane('leaflet-tile-pane', this._mapPane); - this._tileBg.style.zIndex = 1; - } - - var tilePane = this._tilePane, - tileBg = this._tileBg; - - // prepare the background pane to become the main tile pane - //tileBg.innerHTML = ''; - tileBg.style[L.DomUtil.TRANSFORM] = ''; - tileBg.style.visibility = 'hidden'; - - // tells tile layers to reinitialize their containers - tileBg.empty = true; - tilePane.empty = false; - - this._tilePane = this._panes.tilePane = tileBg; - this._tileBg = tilePane; - - if (!this._tileBg.transition) { - this._tileBg.transition = new L.Transition(this._tileBg, {duration: 0.3, easing: 'cubic-bezier(0.25,0.1,0.25,0.75)'}); - this._tileBg.transition.on('end', this._onZoomTransitionEnd, this); - } - - this._stopLoadingBgTiles(); - }, - - // stops loading all tiles in the background layer - _stopLoadingBgTiles: function () { - var tiles = [].slice.call(this._tileBg.getElementsByTagName('img')); - - for (var i = 0, len = tiles.length; i < len; i++) { - if (!tiles[i].complete) { - // tiles[i].src = '' - evil, doesn't cancel the request! - tiles[i].parentNode.removeChild(tiles[i]); - tiles[i] = null; - } - } - }, - - _onZoomTransitionEnd: function () { - this._restoreTileFront(); - - L.Util.falseFn(this._tileBg.offsetWidth); - this._resetView(this._animateToCenter, this._animateToZoom, true, true); - - this._mapPane.className = this._mapPane.className.replace(' leaflet-zoom-anim', ''); //TODO toggleClass util - 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({ - locate: function (/*Object*/ options) { - - this._locationOptions = options = L.Util.extend({ - watch: false, - setView: false, - maxZoom: Infinity, - timeout: 10000, - maximumAge: 0, - enableHighAccuracy: false - }, 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); - } - }, - - locateAndSetView: function (maxZoom, options) { - options = L.Util.extend({ - maxZoom: maxZoom || Infinity, - setView: true - }, options); - return this.locate(options); - }, - - _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); - - var sw = new L.LatLng(lat - latAccuracy, lng - lngAccuracy), - ne = new L.LatLng(lat + latAccuracy, lng + lngAccuracy), - bounds = new L.LatLngBounds(sw, ne); - - if (this._locationOptions.setView) { - var zoom = Math.min(this.getBoundsZoom(bounds), this._locationOptions.maxZoom); - this.setView(latlng, zoom); - } - - this.fire('locationfound', { - latlng: latlng, - bounds: bounds, - accuracy: pos.coords.accuracy - }); - } -}); - -