From 9863c0c6a09949fd998355bc86e00e5402e600d7 Mon Sep 17 00:00:00 2001 From: Mourner Date: Fri, 27 May 2011 18:36:11 +0300 Subject: [PATCH] tile layer refactoring --- CHANGELOG.md | 1 + dist/leaflet.js | 19 ++++----- src/dom/DomEvent.js | 10 +++++ src/layer/TileLayer.js | 91 +++++++++++++++++++++++++----------------- 4 files changed, 76 insertions(+), 45 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index dcc9b9bb..ec997ac6 100644 --- a/CHANGELOG.md +++ b/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) diff --git a/dist/leaflet.js b/dist/leaflet.js index 8bfd4c07..b55c858a 100644 --- a/dist/leaflet.js +++ b/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;e0&&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], +"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+ +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=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"); -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._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(), -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= -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;aa.max.x||ba.max.y))this._tiles[d].parentNode==this._container&&this._container.removeChild(this._tiles[d]), -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<=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"; -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= +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);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.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); +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=0;for(d=this._tilesToLoad;aa.max.x||ba.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<=c||(c=this._createTile(), +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= +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= diff --git a/src/dom/DomEvent.js b/src/dom/DomEvent.js index a07e9f60..c185de88 100644 --- a/src/dom/DomEvent.js +++ b/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, diff --git a/src/layer/TileLayer.js b/src/layer/TileLayer.js index e1f3f96e..90f10d31 100644 --- a/src/layer/TileLayer.js +++ b/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._tileImg.galleryimg = 'no'; - - var tileSize = this.options.tileSize; - this._tileImg.style.width = tileSize + 'px'; - this._tileImg.style.height = tileSize + 'px'; + this._createTileProto(); // 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) { - var origin = this._map.getPixelOrigin(), - tileSize = this.options.tileSize, - tilePos = tilePoint.multiplyBy(tileSize).subtract(origin), + _addTile: function(tilePoint) { + var tilePos = this._getTilePos(tilePoint); 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; - tile.onload = this._tileOnLoad; - tile.onerror = this._tileOnError; - tile.onselectstart = tile.onmousemove = L.Util.falseFn; - - tile.src = this.getTileUrl(tilePoint, zoom); + this._loadTile(tile, tilePoint, zoom); this._container.appendChild(tile); }, - _tileOnLoad: function() { - this.className += ' leaflet-tile-loaded'; //TODO DomEvent#addListener target + _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) + + _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'; + }, + + _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'; - var layer = this._leaflet_layer; + this.fire('tileload', {tile: tile, url: tile.src}); - layer.fire('tileload', {tile: this, url: this.src}); - - layer._tilesToLoad--; - if (!layer._tilesToLoad) { - layer.fire('load'); + this._tilesToLoad--; + if (!this._tilesToLoad) { + this.fire('load'); } }, - _tileOnError: function() { - this._leaflet_layer.fire('tileerror', {tile: this, url: this.src}); + _tileOnError: function(e) { + 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; } - } }); \ No newline at end of file