tile layer refactoring

CHANGELOG.md

@@ -11,6 +11,7 @@ Leaflet Changelog
  * Added `opacity` option for tile layers.
  * Added `setLatLng` method to `L.Marker`.
  * Added `maxZoom` argument to `map.locateAndSetView` method.
+ * Added `DomEvent.getTarget` method.
  * Improved geolocation error handling: better error messages, explicit timeout, set world view on locateAndSetView failure. [#61](http://github.com/CloudMade/Leaflet/issues/61)
  * Disabled zoom animation on Android by default because it's buggy on some devices (will be enabled back when it's stable enough). [#32](http://github.com/CloudMade/Leaflet/issues/32)
  * Fixed a bug where map would occasionally break while multi-touch-zooming on iOS. [#32](http://github.com/CloudMade/Leaflet/issues/32)

dist/leaflet.js

@@ -17,8 +17,8 @@ b,d.y);else if(c&4)return new L.Point(a.x+e*(f.y-a.y)/b,f.y);else if(c&2)return
 0)return this._sqDist(a,b);if(f>1)return this._sqDist(a,c);b=new L.Point(b.x+d*f,b.y+e*f);return this._sqDist(a,b)}};L.PolyUtil={};L.PolyUtil.clipPolygon=function(a,b){var c,d=[1,4,2,8],e,f,g,h,i,j,k=L.LineUtil;e=0;for(i=a.length;e<i;e++)a[e]._code=k._getBitCode(a[e],b);for(g=0;g<4;g++){j=d[g];c=[];e=0;i=a.length;for(f=i-1;e<i;f=e++)if(h=a[e],f=a[f],h._code&j){if(!(f._code&j))f=k._getEdgeIntersection(f,h,j,b),f._code=k._getBitCode(f,b),c.push(f)}else{if(f._code&j)f=k._getEdgeIntersection(f,h,j,b),f._code=k._getBitCode(f,b),c.push(f);c.push(h)}a=c}return a};L.DomEvent={addListener:function(a,b,c,d){function e(b){return c.call(d||a,b||L.DomEvent._getEvent())}var f=L.Util.stamp(c);if(L.Browser.mobileWebkit&&b=="dblclick"&&this.addDoubleTapListener)this.addDoubleTapListener(a,e,f);else if("addEventListener"in a)if(b=="mousewheel")a.addEventListener("DOMMouseScroll",e,!1),a.addEventListener(b,e,!1);else if(b=="mouseenter"||b=="mouseleave"){var g=e,e=function(b){if(L.DomEvent._checkMouse(a,b))return g(b)};a.addEventListener(b=="mouseenter"?"mouseover":"mouseout",
 e,!1)}else a.addEventListener(b,e,!1);else"attachEvent"in a&&a.attachEvent("on"+b,e);a["_leaflet_"+b+f]=e},removeListener:function(a,b,c){var c=L.Util.stamp(c),d="_leaflet_"+b+c;handler=a[d];L.Browser.mobileWebkit&&b=="dblclick"&&this.removeDoubleTapListener?this.removeDoubleTapListener(a,c):"removeEventListener"in a?b=="mousewheel"?(a.removeEventListener("DOMMouseScroll",handler,!1),a.removeEventListener(b,handler,!1)):b=="mouseenter"||b=="mouseleave"?a.removeEventListener(b=="mouseenter"?"mouseover":
 "mouseout",handler,!1):a.removeEventListener(b,handler,!1):"detachEvent"in a&&a.detachEvent("on"+b,handler);a[d]=null},_checkMouse:function(a,b){var c=b.relatedTarget;if(!c)return!0;try{for(;c&&c!=a;)c=c.parentNode}catch(d){return!1}return c!=a},_getEvent:function(){var a=window.event;if(!a)for(var b=arguments.callee.caller;b;){if((a=b.arguments[0])&&Event==a.constructor)break;b=b.caller}return a},stopPropagation:function(a){a.stopPropagation?a.stopPropagation():a.cancelBubble=!0},disableClickPropagation:function(a){L.DomEvent.addListener(a,
-"mousedown",L.DomEvent.stopPropagation);L.DomEvent.addListener(a,"click",L.DomEvent.stopPropagation);L.DomEvent.addListener(a,"dblclick",L.DomEvent.stopPropagation)},preventDefault:function(a){a.preventDefault?a.preventDefault():a.returnValue=!1},getMousePosition:function(a,b){var c=new L.Point(a.pageX?a.pageX:a.clientX+document.body.scrollLeft+document.documentElement.scrollLeft,a.pageY?a.pageY:a.clientY+document.body.scrollTop+document.documentElement.scrollTop);return b?c.subtract(L.DomUtil.getCumulativeOffset(b)):
+"mousedown",L.DomEvent.stopPropagation);L.DomEvent.addListener(a,"click",L.DomEvent.stopPropagation);L.DomEvent.addListener(a,"dblclick",L.DomEvent.stopPropagation)},preventDefault:function(a){a.preventDefault?a.preventDefault():a.returnValue=!1},getTarget:function(a){if((a=a.target||a.srcElement)&&a.nodeType==3)a=a.parentNode;return a},getMousePosition:function(a,b){var c=new L.Point(a.pageX?a.pageX:a.clientX+document.body.scrollLeft+document.documentElement.scrollLeft,a.pageY?a.pageY:a.clientY+
-c},getWheelDelta:function(a){var b=0;a.wheelDelta&&(b=a.wheelDelta/120);a.detail&&(b=-a.detail/3);return b}};L.Util.extend(L.DomEvent,{addDoubleTapListener:function(a,b,c){function d(a){if(a.touches.length==1){var b=Date.now(),c=b-(f||b);i=a.touches[0];g=c>0&&c<=h;f=b}}function e(){if(g)i.type="dblclick",b(i),f=null}var f,g=!1,h=250,i;a["_leaflet_touchstart"+c]=d;a["_leaflet_touchend"+c]=e;a.addEventListener("touchstart",d,!1);a.addEventListener("touchend",e,!1)},removeDoubleTapListener:function(a,b){a.removeEventListener(a,a["_leaflet_touchstart"+b],!1);a.removeEventListener(a,a["_leaflet_touchend"+b],
+document.body.scrollTop+document.documentElement.scrollTop);return b?c.subtract(L.DomUtil.getCumulativeOffset(b)):c},getWheelDelta:function(a){var b=0;a.wheelDelta&&(b=a.wheelDelta/120);a.detail&&(b=-a.detail/3);return b}};L.Util.extend(L.DomEvent,{addDoubleTapListener:function(a,b,c){function d(a){if(a.touches.length==1){var b=Date.now(),c=b-(f||b);i=a.touches[0];g=c>0&&c<=h;f=b}}function e(){if(g)i.type="dblclick",b(i),f=null}var f,g=!1,h=250,i;a["_leaflet_touchstart"+c]=d;a["_leaflet_touchend"+c]=e;a.addEventListener("touchstart",d,!1);a.addEventListener("touchend",e,!1)},removeDoubleTapListener:function(a,b){a.removeEventListener(a,a["_leaflet_touchstart"+b],!1);a.removeEventListener(a,a["_leaflet_touchend"+b],
 !1)}});L.DomUtil={get:function(a){return typeof a=="string"?document.getElementById(a):a},getStyle:function(a,b){var c=a.style[b];typeof c=="undefined"&&a.currentStyle&&(c=a.currentStyle[b]);typeof c=="undefined"&&(c=(c=document.defaultView.getComputedStyle(a,null))?c[b]:null);return c=="auto"?null:c},getCumulativeOffset:function(a){var b=0,c=0;do b+=a.offsetTop||0,c+=a.offsetLeft||0,a=a.offsetParent;while(a);return new L.Point(c,b)},create:function(a,b,c){a=document.createElement(a);a.className=b;c&&c.appendChild(a);
 return a},disableTextSelection:function(){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},CLASS_RE:/(\\s|^)'+cls+'(\\s|$)/,hasClass:function(a,b){return a.className.length>0&&RegExp("(^|\\s)"+b+"(\\s|$)").test(a.className)},addClass:function(a,b){L.DomUtil.hasClass(a,b)||
 (a.className+=(a.className?" ":"")+b)},setOpacity:function(a,b){L.Browser.ie?a.style.filter="alpha(opacity="+Math.round(b*100)+")":a.style.opacity=b},testProp:function(a){for(var b=document.documentElement.style,c=0;c<a.length;c++)if(a[c]in b)return a[c];return!1},getTranslateString:function(a){return L.DomUtil.TRANSLATE_OPEN+a.x+"px,"+a.y+"px"+L.DomUtil.TRANSLATE_CLOSE},getScaleString:function(a,b){return L.DomUtil.getTranslateString(b)+" scale("+a+") "+L.DomUtil.getTranslateString(b.multiplyBy(-1))},
@@ -33,13 +33,14 @@ new L.Point(0,0);this._p2=new L.Point(c[0],c[1]);this._p3=new L.Point(c[2],c[3])
 this._timer=setInterval(this._step,this._interval);this._startTime=L.Transition.getTime()},_step:function(){var a=L.Transition.getTime()-this._startTime,b=this.options.duration*1E3;a<b?this._runFrame(this._cubicBezier(a/b)):(this._runFrame(1),this._complete())},_runFrame:function(a){var b=L.Transition.CUSTOM_PROPS_SETTERS,c,d;for(c in this._props)this._props.hasOwnProperty(c)&&(d=this._props[c],c in b?(d=d.to.subtract(d.from).multiplyBy(a).add(d.from),b[c](this._el,d)):this._el.style[c]=(d.to-d.from)*
 a+d.from+d.unit);this.fire("step")},_complete:function(){clearInterval(this._timer);this.fire("end")},_cubicBezier:function(a){var b=3*Math.pow(1-a,2)*a,c=3*(1-a)*Math.pow(a,2),d=Math.pow(a,3),a=this._p1.multiplyBy(Math.pow(1-a,3)),b=this._p2.multiplyBy(b),c=this._p3.multiplyBy(c),d=this._p4.multiplyBy(d);return a.add(b).add(c).add(d).y}});L.LatLng=function(a,b,c){c!==!0&&(a=Math.max(Math.min(a,90),-90),b=(b+180)%360+(b<-180?180:-180));this.lat=a;this.lng=b};L.Util.extend(L.LatLng,{DEG_TO_RAD:Math.PI/180,RAD_TO_DEG:180/Math.PI,MAX_MARGIN:1.0E-9});L.LatLng.prototype={equals:function(a){if(!(a instanceof L.LatLng))return!1;return Math.max(Math.abs(this.lat-a.lat),Math.abs(this.lng-a.lng))<=L.LatLng.MAX_MARGIN},toString:function(){return"LatLng("+L.Util.formatNum(this.lat)+", "+L.Util.formatNum(this.lng)+")"}};L.LatLngBounds=L.Class.extend({initialize:function(a,b){for(var c=a instanceof Array?a:[a,b],d=0,e=c.length;d<e;d++)this.extend(c[d])},extend:function(a){!this._southWest&&!this._northEast?(this._southWest=new L.LatLng(a.lat,a.lng),this._northEast=new L.LatLng(a.lat,a.lng)):(this._southWest.lat=Math.min(a.lat,this._southWest.lat),this._southWest.lng=Math.min(a.lng,this._southWest.lng),this._northEast.lat=Math.max(a.lat,this._northEast.lat),this._northEast.lng=Math.max(a.lng,this._northEast.lng))},
 getCenter:function(){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)},getSouthEast:function(){return new L.LatLng(this._southWest.lat,this._northEast.lng)},contains:function(a){var b=this._southWest,c=this._northEast,d;a instanceof L.LatLngBounds?(d=a.getSouthWest(),
-a=a.getNorthEast()):d=a;return d.lat>=b.lat&&a.lat<=c.lat&&d.lng>=b.lng&&a.lng<=c.lng}});L.Projection={};L.Projection.Mercator={MAX_LATITUDE:function(){var a=Math.exp(2*Math.PI);return Math.asin((a-1)/(a+1))*L.LatLng.RAD_TO_DEG}(),project:function(a){var b=L.LatLng.DEG_TO_RAD,c=L.Projection.Mercator.MAX_LATITUDE,d=a.lng*b,a=Math.max(Math.min(c,a.lat),-c)*b,a=Math.log(Math.tan(Math.PI/4+a/2));return new L.Point(d,a)},unproject:function(a,b){var c=L.LatLng.RAD_TO_DEG;return new L.LatLng((2*Math.atan(Math.exp(a.y))-Math.PI/2)*c,a.x*c,b)}};L.TileLayer=L.Class.extend({includes:L.Mixin.Events,options:{minZoom:0,maxZoom:18,tileSize:256,subdomains:"abc",errorTileUrl:"",attribution:"",opacity:1,unloadInvisibleTiles:L.Browser.mobileWebkit,updateWhenIdle:L.Browser.mobileWebkit},initialize:function(a,b){L.Util.setOptions(this,b);this._url=a;if(typeof this.options.subdomains=="string")this.options.subdomains=this.options.subdomains.split("")},onAdd:function(a){this._map=a;this._initContainer();this._tileImg=L.DomUtil.create("img","leaflet-tile");
+a=a.getNorthEast()):d=a;return d.lat>=b.lat&&a.lat<=c.lat&&d.lng>=b.lng&&a.lng<=c.lng}});L.Projection={};L.Projection.Mercator={MAX_LATITUDE:function(){var a=Math.exp(2*Math.PI);return Math.asin((a-1)/(a+1))*L.LatLng.RAD_TO_DEG}(),project:function(a){var b=L.LatLng.DEG_TO_RAD,c=L.Projection.Mercator.MAX_LATITUDE,d=a.lng*b,a=Math.max(Math.min(c,a.lat),-c)*b,a=Math.log(Math.tan(Math.PI/4+a/2));return new L.Point(d,a)},unproject:function(a,b){var c=L.LatLng.RAD_TO_DEG;return new L.LatLng((2*Math.atan(Math.exp(a.y))-Math.PI/2)*c,a.x*c,b)}};L.TileLayer=L.Class.extend({includes:L.Mixin.Events,options:{minZoom:0,maxZoom:18,tileSize:256,subdomains:"abc",errorTileUrl:"",attribution:"",opacity:1,unloadInvisibleTiles:L.Browser.mobileWebkit,updateWhenIdle:L.Browser.mobileWebkit},initialize:function(a,b){L.Util.setOptions(this,b);this._url=a;if(typeof this.options.subdomains=="string")this.options.subdomains=this.options.subdomains.split("")},onAdd:function(a){this._map=a;this._initContainer();this._createTileProto();a.on("viewreset",this._reset,
-this._tileImg.galleryimg="no";var b=this.options.tileSize;this._tileImg.style.width=b+"px";this._tileImg.style.height=b+"px";a.on("viewreset",this._reset,this);if(this.options.updateWhenIdle)a.on("moveend",this._update,this);else this._limitedUpdate=L.Util.limitExecByInterval(this._update,100,this),a.on("move",this._limitedUpdate,this);this._reset();this._update()},onRemove:function(){this._map.getPanes().tilePane.removeChild(this._container);this._map.off("viewreset",this._reset);this.options.updateWhenIdle?
+this);if(this.options.updateWhenIdle)a.on("moveend",this._update,this);else this._limitedUpdate=L.Util.limitExecByInterval(this._update,100,this),a.on("move",this._limitedUpdate,this);this._reset();this._update()},onRemove:function(){this._map.getPanes().tilePane.removeChild(this._container);this._map.off("viewreset",this._reset);this.options.updateWhenIdle?this._map.off("moveend",this._update):this._map.off("move",this._limitedUpdate)},getAttribution:function(){return this.options.attribution},_initContainer:function(){var a=
-this._map.off("moveend",this._update):this._map.off("move",this._limitedUpdate)},getAttribution:function(){return this.options.attribution},_initContainer:function(){var a=this._map.getPanes().tilePane;if(!this._container||a.empty)this._container=L.DomUtil.create("div","leaflet-layer",a),this.options.opacity<1&&L.DomUtil.setOpacity(this._container,this.options.opacity)},_reset:function(){this._tiles={};this._initContainer();this._container.innerHTML=""},_update:function(){var a=this._map.getPixelBounds(),
+this._map.getPanes().tilePane;if(!this._container||a.empty)this._container=L.DomUtil.create("div","leaflet-layer",a),this.options.opacity<1&&L.DomUtil.setOpacity(this._container,this.options.opacity)},_reset:function(){this._tiles={};this._initContainer();this._container.innerHTML=""},_update:function(){var a=this._map.getPixelBounds(),b=this.options.tileSize,c=new L.Point(Math.floor(a.min.x/b),Math.floor(a.min.y/b)),a=new L.Point(Math.floor(a.max.x/b),Math.floor(a.max.y/b)),c=new L.Bounds(c,a);this._addTilesFromCenterOut(c);
-b=this.options.tileSize,c=new L.Point(Math.floor(a.min.x/b),Math.floor(a.min.y/b)),a=new L.Point(Math.floor(a.max.x/b),Math.floor(a.max.y/b)),c=new L.Bounds(c,a);this._loadTilesFromCenterOut(c);this.options.unloadInvisibleTiles&&this._unloadOtherTiles(c)},getTileUrl:function(a,b){return this._url.replace("{s}",this.options.subdomains[(a.x+a.y)%this.options.subdomains.length]).replace("{z}",b).replace("{x}",a.x).replace("{y}",a.y)},_loadTilesFromCenterOut:function(a){for(var b=[],c=a.getCenter(),d=
+this.options.unloadInvisibleTiles&&this._removeOtherTiles(c)},getTileUrl:function(a,b){return this._url.replace("{s}",this.options.subdomains[(a.x+a.y)%this.options.subdomains.length]).replace("{z}",b).replace("{x}",a.x).replace("{y}",a.y)},_addTilesFromCenterOut:function(a){for(var b=[],c=a.getCenter(),d=a.min.y;d<=a.max.y;d++)for(var e=a.min.x;e<=a.max.x;e++)e+":"+d in this._tiles||b.push(new L.Point(e,d));b.sort(function(a,b){return a.distanceTo(c)-b.distanceTo(c)});this._tilesToLoad=b.length;
-a.min.y;d<=a.max.y;d++)for(var e=a.min.x;e<=a.max.x;e++)e+":"+d in this._tiles||b.push(new L.Point(e,d));b.sort(function(a,b){return a.distanceTo(c)-b.distanceTo(c)});this._tilesToLoad=b.length;a=0;for(d=this._tilesToLoad;a<d;a++)this._loadTile(b[a])},_unloadOtherTiles:function(a){var b,c,d;for(d in this._tiles)if(this._tiles.hasOwnProperty(d)&&(b=d.split(":"),c=parseInt(b[0],10),b=parseInt(b[1],10),c<a.min.x||c>a.max.x||b<a.min.y||b>a.max.y))this._tiles[d].parentNode==this._container&&this._container.removeChild(this._tiles[d]),
+a=0;for(d=this._tilesToLoad;a<d;a++)this._addTile(b[a])},_removeOtherTiles:function(a){var b,c,d;for(d in this._tiles)if(this._tiles.hasOwnProperty(d)&&(b=d.split(":"),c=parseInt(b[0],10),b=parseInt(b[1],10),c<a.min.x||c>a.max.x||b<a.min.y||b>a.max.y))this._tiles[d].parentNode==this._container&&this._container.removeChild(this._tiles[d]),delete this._tiles[d]},_addTile:function(a){var b=this._getTilePos(a);zoom=this._map.getZoom();var c=1<<zoom;a.x=(a.x%c+c)%c;a.y<0||a.y>=c||(c=this._createTile(),
-delete this._tiles[d]},_loadTile:function(a){var b=this._map.getPixelOrigin(),b=a.multiplyBy(this.options.tileSize).subtract(b),c=this._map.getZoom(),d=1<<c;a.x=(a.x%d+d)%d;if(!(a.y<0||a.y>=d))d=this._tileImg.cloneNode(!1),L.DomUtil.setPosition(d,b),this._tiles[a.x+":"+a.y]=d,d._leaflet_layer=this,d.onload=this._tileOnLoad,d.onerror=this._tileOnError,d.onselectstart=d.onmousemove=L.Util.falseFn,d.src=this.getTileUrl(a,c),this._container.appendChild(d)},_tileOnLoad:function(){this.className+=" leaflet-tile-loaded";
+L.DomUtil.setPosition(c,b),this._tiles[a.x+":"+a.y]=c,this._loadTile(c,a,zoom),this._container.appendChild(c))},_getTilePos:function(a){var b=this._map.getPixelOrigin();return a.multiplyBy(this.options.tileSize).subtract(b)},_createTileProto:function(){this._tileImg=L.DomUtil.create("img","leaflet-tile");this._tileImg.galleryimg="no";var a=this.options.tileSize;this._tileImg.style.width=a+"px";this._tileImg.style.height=a+"px"},_createTile:function(){var a=this._tileImg.cloneNode(!1);a._leaflet_layer=
-var a=this._leaflet_layer;a.fire("tileload",{tile:this,url:this.src});a._tilesToLoad--;a._tilesToLoad||a.fire("load")},_tileOnError:function(){this._leaflet_layer.fire("tileerror",{tile:this,url:this.src});var a=this._leaflet_layer.options.errorTileUrl;if(a)this.src=a}});L.TileLayer.WMS=L.TileLayer.extend({defaultWmsParams:{service:"WMS",request:"GetMap",version:"1.1.1",layers:"",styles:"",format:"image/jpeg",transparent:!1},initialize:function(a,b){this._url=a;this.wmsParams=L.Util.extend({},this.defaultWmsParams);this.wmsParams.width=this.wmsParams.height=this.options.tileSize;for(var c in b)this.options.hasOwnProperty(c)||(this.wmsParams[c]=b[c]);this.wmsParams[parseFloat(this.wmsParams.version)>=1.3?"crs":"srs"]="EPSG:3857";L.Util.setOptions(this,b)},getTileUrl:function(a){var b=
+this;a.onselectstart=a.onmousemove=L.Util.falseFn;return a},_loadTile:function(a,b,c){a.onload=L.Util.bind(this._tileOnLoad,this);a.onerror=L.Util.bind(this._tileOnError,this);a.src=this.getTileUrl(b,c)},_tileOnLoad:function(a){a=L.DomEvent.getTarget(a);a.className+=" leaflet-tile-loaded";this.fire("tileload",{tile:a,url:a.src});this._tilesToLoad--;this._tilesToLoad||this.fire("load")},_tileOnError:function(a){a=L.DomEvent.getTarget(a);this.fire("tileerror",{tile:a,url:a.src});var b=this.options.errorTileUrl;
+if(b)a.src=b}});L.TileLayer.WMS=L.TileLayer.extend({defaultWmsParams:{service:"WMS",request:"GetMap",version:"1.1.1",layers:"",styles:"",format:"image/jpeg",transparent:!1},initialize:function(a,b){this._url=a;this.wmsParams=L.Util.extend({},this.defaultWmsParams);this.wmsParams.width=this.wmsParams.height=this.options.tileSize;for(var c in b)this.options.hasOwnProperty(c)||(this.wmsParams[c]=b[c]);this.wmsParams[parseFloat(this.wmsParams.version)>=1.3?"crs":"srs"]="EPSG:3857";L.Util.setOptions(this,b)},getTileUrl:function(a){var b=
 this.options.tileSize,a=a.multiplyBy(b),b=a.add(new L.Point(b,b)),a=this._map.unproject(a),b=this._map.unproject(b),a=L.Projection.Mercator.project(a).multiplyBy(6378137),b=L.Projection.Mercator.project(b).multiplyBy(6378137),b=[a.x,b.y,b.x,a.y].join(",");return this._url+L.Util.getParamString(this.wmsParams)+"&bbox="+b}});L.ImageOverlay=L.Class.extend({includes:L.Mixin.Events,initialize:function(a,b){this._url=a;this._bounds=b},onAdd:function(a){this._map=a;this._image||this._initImage();a.getPanes().overlayPane.appendChild(this._image);a.on("viewreset",this._reset,this);this._reset()},onRemove:function(a){a.getPanes().overlayPane.removeChild(this._image);a.off("viewreset",this._reset,this)},_initImage:function(){this._image=L.DomUtil.create("img","leaflet-image-layer");this._image.style.visibility="hidden";L.Util.extend(this._image,
 {galleryimg:"no",onselectstart:L.Util.falseFn,onmousemove:L.Util.falseFn,onload:this._onImageLoad,src:this._url})},_reset:function(){var a=this._map.latLngToLayerPoint(this._bounds.getNorthWest()),b=this._map.latLngToLayerPoint(this._bounds.getSouthEast()).subtract(a);L.DomUtil.setPosition(this._image,a);this._image.style.width=b.x+"px";this._image.style.height=b.y+"px"},_onImageLoad:function(){this.style.visibility=""}});L.Popup=L.Class.extend({includes:L.Mixin.Events,options:{maxWidth:300,autoPan:!0,closeButton:!0,offset:new L.Point(0,2),autoPanPadding:new L.Point(5,5)},initialize:function(a){L.Util.setOptions(this,a)},onAdd:function(a){this._map=a;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";this._opened=!0},onRemove:function(a){a._panes.popupPane.removeChild(this._container);a.off("viewreset",this._updatePosition,this);a.off("click",this._close,this);this._container.style.opacity="0";this._opened=!1},setLatLng:function(a){this._latlng=a;this._opened&&this._update();return this},setContent:function(a){this._content=a;this._opened&&this._update();return this},_close:function(){this._opened&&this._map.removeLayer(this)},_initLayout:function(){this._container=

src/dom/DomEvent.js

@@ -106,6 +106,16 @@ L.DomEvent = {
 		}
 	},
 	
+	getTarget: function(e) {
+		var target = e.target || e.srcElement;
+		
+		if (target && target.nodeType == 3) {
+			target = target.parentNode;
+		}
+		
+		return target;
+	},
+	
 	getMousePosition: function(e, container) {
 		var x = e.pageX ? e.pageX : e.clientX + 
 				document.body.scrollLeft + document.documentElement.scrollLeft,

src/layer/TileLayer.js

@@ -35,12 +35,7 @@ L.TileLayer = L.Class.extend({
 		this._initContainer();
 		
 		// create an image to clone for tiles
-		this._tileImg = L.DomUtil.create('img', 'leaflet-tile');
+		this._createTileProto();
-		this._tileImg.galleryimg = 'no';
-		
-		var tileSize = this.options.tileSize;
-		this._tileImg.style.width = tileSize + 'px';
-		this._tileImg.style.height = tileSize + 'px';
 		
 		// set up events
 		map.on('viewreset', this._reset, this);
@@ -102,10 +97,10 @@ L.TileLayer = L.Class.extend({
 				Math.floor(bounds.max.y / tileSize)),
 			tileBounds = new L.Bounds(nwTilePoint, seTilePoint);
 		
-		this._loadTilesFromCenterOut(tileBounds);
+		this._addTilesFromCenterOut(tileBounds);
 		
 		if (this.options.unloadInvisibleTiles) {
-			this._unloadOtherTiles(tileBounds);
+			this._removeOtherTiles(tileBounds);
 		}
 	},
 	
@@ -120,7 +115,7 @@ L.TileLayer = L.Class.extend({
 				.replace('{y}', tilePoint.y);
 	},
 	
-	_loadTilesFromCenterOut: function(bounds) {
+	_addTilesFromCenterOut: function(bounds) {
 		var queue = [],
 			center = bounds.getCenter();
 		
@@ -138,11 +133,11 @@ L.TileLayer = L.Class.extend({
 		
 		this._tilesToLoad = queue.length;
 		for (var k = 0, len = this._tilesToLoad; k < len; k++) {
-			this._loadTile(queue[k]);
+			this._addTile(queue[k]);
 		}
 	},
 	
-	_unloadOtherTiles: function(bounds) {
+	_removeOtherTiles: function(bounds) {
 		var kArr, x, y, key;
 		
 		for (key in this._tiles) {
@@ -162,10 +157,8 @@ L.TileLayer = L.Class.extend({
 		}		
 	},
 	
-	_loadTile: function(tilePoint) {
+	_addTile: function(tilePoint) {
-		var origin = this._map.getPixelOrigin(),
+		var tilePos = this._getTilePos(tilePoint);
-			tileSize = this.options.tileSize,
-			tilePos = tilePoint.multiplyBy(tileSize).subtract(origin),
 			zoom = this._map.getZoom();
 			
 		// wrap tile coordinates
@@ -174,42 +167,68 @@ L.TileLayer = L.Class.extend({
 		if (tilePoint.y < 0 || tilePoint.y >= tileLimit) { return; }
 		
 		// create tile
-		var tile = this._tileImg.cloneNode(false);
+		var tile = this._createTile();
-		
 		L.DomUtil.setPosition(tile, tilePos);
 		
 		this._tiles[tilePoint.x + ':' + tilePoint.y] = tile;
 
-		tile._leaflet_layer = this;
+		this._loadTile(tile, tilePoint, zoom);
-		tile.onload = this._tileOnLoad;
-		tile.onerror = this._tileOnError;
-		tile.onselectstart = tile.onmousemove = L.Util.falseFn;
-		
-		tile.src = this.getTileUrl(tilePoint, zoom);
 		
 		this._container.appendChild(tile);
 	},
 	
-	_tileOnLoad: function() {
+	_getTilePos: function(tilePoint) {
-		this.className += ' leaflet-tile-loaded'; //TODO DomEvent#addListener target 
+		var origin = this._map.getPixelOrigin(),
+			tileSize = this.options.tileSize;
 		
-		var layer = this._leaflet_layer;
+		return tilePoint.multiplyBy(tileSize).subtract(origin);
+	},
 	
-		layer.fire('tileload', {tile: this, url: this.src});
+	// image-specific code (override to implement e.g. Canvas or SVG tile layer)
 	
-		layer._tilesToLoad--;
+	_createTileProto: function() {
-		if (!layer._tilesToLoad) {
+		this._tileImg = L.DomUtil.create('img', 'leaflet-tile');
-			layer.fire('load');
+		this._tileImg.galleryimg = 'no';
+		
+		var tileSize = this.options.tileSize;
+		this._tileImg.style.width = tileSize + 'px';
+		this._tileImg.style.height = tileSize + 'px';
+	},
+	
+	_createTile: function() {
+		var tile = this._tileImg.cloneNode(false);
+		tile._leaflet_layer = this;
+		tile.onselectstart = tile.onmousemove = L.Util.falseFn;
+		return tile;
+	},
+	
+	_loadTile: function(tile, tilePoint, zoom) {
+		tile.onload = L.Util.bind(this._tileOnLoad, this);
+		tile.onerror = L.Util.bind(this._tileOnError, this);
+		tile.src = this.getTileUrl(tilePoint, zoom);
+	},
+	
+	_tileOnLoad: function(e) {
+		var tile = L.DomEvent.getTarget(e);
+		
+		tile.className += ' leaflet-tile-loaded'; 
+
+		this.fire('tileload', {tile: tile, url: tile.src});
+		
+		this._tilesToLoad--;
+		if (!this._tilesToLoad) {
+			this.fire('load');
 		}
 	},
 	
-	_tileOnError: function() {
+	_tileOnError: function(e) {
-		this._leaflet_layer.fire('tileerror', {tile: this, url: this.src});
+		var tile = L.DomEvent.getTarget(e);
 		
-		var newUrl = this._leaflet_layer.options.errorTileUrl;
+		this.fire('tileerror', {tile: tile, url: tile.src});
+		
+		var newUrl = this.options.errorTileUrl;
 		if (newUrl) {
-			this.src = newUrl;
+			tile.src = newUrl;
 		}
-			
 	}
 });