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use documentFragment when adding tiles, closes #152

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Mourner 2011-06-23 14:27:43 +03:00
parent b0ac337d44
commit 6dbb8dcef2
2 changed files with 18 additions and 14 deletions
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10
dist/leaflet.js vendored
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@ -40,13 +40,13 @@ a=a.getNorthEast()):d=a;return d.lat>=b.lat&&a.lat<=c.lat&&d.lng>=b.lng&&a.lng<=
g=Math.PI/2-2*Math.atan(d),h=15,j=0.1;Math.abs(j)>1.0E-7&&--h>0;)j=f*Math.sin(g),j=Math.PI/2-2*Math.atan(d*Math.pow((1-j)/(1+j),0.5*f))-g,g+=j;return new L.LatLng(g*c,e,b)}};L.CRS={latLngToPoint:function(a,b){return this.transformation._transform(this.projection.project(a),b)},pointToLatLng:function(a,b,c){return this.projection.unproject(this.transformation.untransform(a,b),c)},project:function(a){return this.projection.project(a)}};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(a){return this.projection.project(a).multiplyBy(6378137)}});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.CRS.EPSG3395=L.Util.extend({},L.CRS,{code:"EPSG:3395",projection:L.Projection.Mercator,transformation:function(){var a=L.Projection.Mercator;return new L.Transformation(0.5/(Math.PI*a.R_MAJOR),0.5,-0.5/(Math.PI*a.R_MINOR),0.5)}()});L.LayerGroup=L.Class.extend({initialize:function(a){this._layers={};if(a)for(var b=0,c=a.length;b<c;b++)this.addLayer(a[b])},addLayer:function(a){this._layers[L.Util.stamp(a)]=a;this._map&&this._map.addLayer(a);return this},removeLayer:function(a){delete this._layers[L.Util.stamp(a)];this._map&&this._map.removeLayer(a);return this},clearLayers:function(){this._iterateLayers(this.removeLayer,this);return this},onAdd:function(a){this._map=a;this._iterateLayers(a.addLayer,a)},onRemove:function(a){this._iterateLayers(a.removeLayer,
a);delete this._map},_iterateLayers:function(a,b){for(var c in this._layers)this._layers.hasOwnProperty(c)&&a.call(b,this._layers[c])}});L.FeatureGroup=L.LayerGroup.extend({includes:L.Mixin.Events,addLayer:function(a){this._initEvents(a);L.LayerGroup.prototype.addLayer.call(this,a);this._popupContent&&a.bindPopup&&a.bindPopup(this._popupContent)},bindPopup:function(a){this._popupContent=a;for(var b in this._layers)this._layers.hasOwnProperty(b)&&this._layers[b].bindPopup&&this._layers[b].bindPopup(a)},_events:["click","dblclick","mouseover","mouseout"],_initEvents:function(a){for(var b=0,c=this._events.length;b<c;b++)a.on(this._events[b],
this._propagateEvent,this)},_propagateEvent:function(a){a.layer=a.target;a.target=this;this.fire(a.type,a)}});L.TileLayer=L.Class.extend({includes:L.Mixin.Events,options:{minZoom:0,maxZoom:18,tileSize:256,subdomains:"abc",errorTileUrl:"",attribution:"",opacity:1,scheme:"xyz",noWrap:!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._container=null;this._map.off("viewreset",this._reset,this);this.options.updateWhenIdle?this._map.off("moveend",this._update,this):this._map.off("move",this._limitedUpdate,this)},
a.on("viewreset",this._reset,this);if(this.options.updateWhenIdle)a.on("moveend",this._update,this);else this._limitedUpdate=L.Util.limitExecByInterval(this._update,150,this),a.on("move",this._limitedUpdate,this);this._reset();this._update()},onRemove:function(){this._map.getPanes().tilePane.removeChild(this._container);this._container=null;this._map.off("viewreset",this._reset,this);this.options.updateWhenIdle?this._map.off("moveend",this._update,this):this._map.off("move",this._limitedUpdate,this)},
getAttribution:function(){return this.options.attribution},setOpacity:function(a){this.options.opacity=a;this._setOpacity(a);if(L.Browser.webkit)for(i in this._tiles)this._tiles[i].style.webkitTransform+=" translate(0,0)"},_setOpacity:function(a){a<1&&L.DomUtil.setOpacity(this._container,a)},_initContainer:function(){var a=this._map.getPanes().tilePane;if(!this._container||a.empty)this._container=L.DomUtil.create("div","leaflet-layer",a),this._setOpacity(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)},_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;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].src="",this._tiles[d].parentNode==this._container&&this._container.removeChild(this._tiles[d]),delete this._tiles[d]},_addTile:function(a){var b=
this._getTilePos(a),c=this._map.getZoom(),d=a.x+":"+a.y,e=1<<c;if(!this.options.noWrap)a.x=(a.x%e+e)%e;if(!(a.y<0||a.y>=e)){var f=this._createTile();L.DomUtil.setPosition(f,b);this._tiles[d]=f;if(this.options.scheme=="tms")a.y=e-a.y-1;this._loadTile(f,a,c);this._container.appendChild(f)}},_getTilePos:function(a){var b=this._map.getPixelOrigin();return a.multiplyBy(this.options.tileSize).subtract(b)},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)},_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.onselectstart=a.onmousemove=L.Util.falseFn;return a},_loadTile:function(a,b,c){a._layer=this;a.onload=this._tileOnLoad;a.onerror=this._tileOnError;a.src=this.getTileUrl(b,c)},_tileOnLoad:function(){var a=
this._layer;this.className+=" leaflet-tile-loaded";a.fire("tileload",{tile:this,url:this.src});a._tilesToLoad--;a._tilesToLoad||a.fire("load")},_tileOnError:function(){var a=this._layer;a.fire("tileerror",{tile:this,url:this.src});if(a=a.options.errorTileUrl)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]);L.Util.setOptions(this,b)},onAdd:function(a){this.wmsParams[parseFloat(this.wmsParams.version)>=1.3?"crs":"srs"]=a.options.crs.code;
b.push(new L.Point(e,d));b.sort(function(a,b){return a.distanceTo(c)-b.distanceTo(c)});a=document.createDocumentFragment();this._tilesToLoad=b.length;d=0;for(e=this._tilesToLoad;d<e;d++)this._addTile(b[d],a);this._container.appendChild(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].src="",this._tiles[d].parentNode==this._container&&
this._container.removeChild(this._tiles[d]),delete this._tiles[d]},_addTile:function(a,b){var c=this._getTilePos(a),d=this._map.getZoom(),e=a.x+":"+a.y,f=1<<d;if(!this.options.noWrap)a.x=(a.x%f+f)%f;if(!(a.y<0||a.y>=f)){var g=this._createTile();L.DomUtil.setPosition(g,c);this._tiles[e]=g;if(this.options.scheme=="tms")a.y=f-a.y-1;this._loadTile(g,a,d);b.appendChild(g)}},_getTilePos:function(a){var b=this._map.getPixelOrigin();return a.multiplyBy(this.options.tileSize).subtract(b)},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)},_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.onselectstart=a.onmousemove=L.Util.falseFn;return a},_loadTile:function(a,b,c){a._layer=
this;a.onload=this._tileOnLoad;a.onerror=this._tileOnError;a.src=this.getTileUrl(b,c)},_tileOnLoad:function(){var a=this._layer;this.className+=" leaflet-tile-loaded";a.fire("tileload",{tile:this,url:this.src});a._tilesToLoad--;a._tilesToLoad||a.fire("load")},_tileOnError:function(){var a=this._layer;a.fire("tileerror",{tile:this,url:this.src});if(a=a.options.errorTileUrl)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]);L.Util.setOptions(this,b)},onAdd:function(a){this.wmsParams[parseFloat(this.wmsParams.version)>=1.3?"crs":"srs"]=a.options.crs.code;
L.TileLayer.prototype.onAdd.call(this,a)},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,this._zoom,!0),b=this._map.unproject(b,this._zoom,!0),a=this._map.options.crs.project(a),b=this._map.options.crs.project(b),b=[a.x,b.y,b.x,a.y].join(",");return this._url+L.Util.getParamString(this.wmsParams)+"&bbox="+b}});L.TileLayer.Canvas=L.TileLayer.extend({options:{async:!1},initialize:function(a){L.Util.setOptions(this,a)},_createTileProto:function(){this._canvasProto=L.DomUtil.create("canvas","leaflet-tile");var a=this.options.tileSize;this._canvasProto.width=a;this._canvasProto.height=a},_createTile:function(){var a=this._canvasProto.cloneNode(!1);a.onselectstart=a.onmousemove=L.Util.falseFn;return a},_loadTile:function(a,b,c){a._layer=this;this.drawTile(a,b,c);this.options.async||this.tileDrawn(a)},drawTile:function(){},
tileDrawn:function(a){this._tileOnLoad.call(a)}});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,

22
src/layer/tile/TileLayer.js
View File

@ -14,7 +14,7 @@ L.TileLayer = L.Class.extend({
attribution: '',
opacity: 1,
scheme: 'xyz',
noWrap: false,
noWrap: false,
unloadInvisibleTiles: L.Browser.mobileWebkit,
updateWhenIdle: L.Browser.mobileWebkit
@ -45,7 +45,7 @@ L.TileLayer = L.Class.extend({
if (this.options.updateWhenIdle) {
map.on('moveend', this._update, this);
} else {
this._limitedUpdate = L.Util.limitExecByInterval(this._update, 100, this);
this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this);
map.on('move', this._limitedUpdate, this);
}
@ -140,10 +140,14 @@ L.TileLayer = L.Class.extend({
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]);
this._addTile(queue[k], fragment);
}
this._container.appendChild(fragment);
},
_removeOtherTiles: function(bounds) {
@ -167,16 +171,16 @@ L.TileLayer = L.Class.extend({
}
},
_addTile: function(tilePoint) {
_addTile: function(tilePoint, container) {
var tilePos = this._getTilePos(tilePoint),
zoom = this._map.getZoom(),
key = tilePoint.x + ':' + tilePoint.y;
key = tilePoint.x + ':' + tilePoint.y,
tileLimit = (1 << zoom);
// wrap tile coordinates
var tileLimit = (1 << zoom);
if (!this.options.noWrap) {
tilePoint.x = ((tilePoint.x % tileLimit) + tileLimit) % tileLimit;
}
tilePoint.x = ((tilePoint.x % tileLimit) + tileLimit) % tileLimit;
}
if (tilePoint.y < 0 || tilePoint.y >= tileLimit) { return; }
// create tile
@ -191,7 +195,7 @@ L.TileLayer = L.Class.extend({
this._loadTile(tile, tilePoint, zoom);
this._container.appendChild(tile);
container.appendChild(tile);
},
_getTilePos: function(tilePoint) {