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Merge pull request #82 from fredj/2897

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don't create div for image tile when no gutter is used. p=ahocevar,pgiraud,elemoine,fredj
This commit is contained in:
Frédéric Junod
2011-12-07 23:03:26 -08:00
parent e97961321c c1f2232f74
commit 5fda8835da
9 changed files with 114 additions and 108 deletions
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5
lib/OpenLayers/Layer.js
View File

@@ -1271,8 +1271,9 @@ OpenLayers.Layer = OpenLayers.Class({
setOpacity: function(opacity) {
if (opacity != this.opacity) {
this.opacity = opacity;
for(var i=0, len=this.div.childNodes.length; i<len; ++i) {
var element = this.div.childNodes[i].firstChild;
var childNodes = this.div.childNodes;
for(var i = 0, len = childNodes.length; i < len; ++i) {
var element = childNodes[i].firstChild || childNodes[i];
OpenLayers.Util.modifyDOMElement(element, null, null, null,
null, null, null, opacity);
}

108
lib/OpenLayers/Tile/Image.js
View File

@@ -35,7 +35,8 @@ OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
/**
* Property: frame
* {DOMElement} The image element is appended to the frame. Any gutter on
* the image will be hidden behind the frame.
* the image will be hidden behind the frame. If no gutter is set,
* this will be null.
*/
frame: null,
@@ -99,13 +100,15 @@ OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
OpenLayers.Tile.prototype.initialize.apply(this, arguments);
this.url = url; //deprecated remove me
this.frame = document.createElement("div");
this.frame.style.position = "absolute";
this.frame.style.overflow = "hidden";
this.layerAlphaHack = this.layer.alpha && OpenLayers.Util.alphaHack();
if (this.maxGetUrlLength != null || this.layer.gutter || this.layerAlphaHack) {
// only create frame if it's needed
this.frame = document.createElement("div");
this.frame.style.position = "absolute";
this.frame.style.overflow = "hidden";
}
if (this.maxGetUrlLength != null) {
OpenLayers.Util.extend(this, OpenLayers.Tile.Image.IFrame);
}
@@ -116,7 +119,7 @@ OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
* nullify references to prevent circular references and memory leaks
*/
destroy: function() {
if (this.frame != null) {
if (this.imgDiv) {
this.clear();
this.imgDiv = null;
this.frame = null;
@@ -162,7 +165,7 @@ OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
* position it correctly, and set its url.
*/
renderTile: function() {
this.layer.div.appendChild(this.frame);
this.layer.div.appendChild(this.getTile());
if (this.layer.async) {
// Asynchronous image requests call the asynchronous getURL method
// on the layer to fetch an image that covers 'this.bounds', in the scope of
@@ -188,7 +191,7 @@ OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
* code.
*/
positionTile: function() {
var style = this.frame.style;
var style = this.getTile().style;
style.left = this.position.x + "%";
style.top = this.position.y + "%";
style.width = this.size.w + "%";
@@ -204,8 +207,9 @@ OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
var img = this.imgDiv;
if (img) {
OpenLayers.Event.stopObservingElement(img);
if (this.frame.parentNode === this.layer.div) {
this.layer.div.removeChild(this.frame);
var tile = this.getTile();
if (tile.parentNode === this.layer.div) {
this.layer.div.removeChild(tile);
}
this.setImgSrc();
if (this.layerAlphaHack === true) {
@@ -216,45 +220,49 @@ OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
},
/**
* Method: createImage
* Creates the content for the frame on the tile.
* Method: getImage
* Returns or creates and returns the tile image.
*/
createImage: function() {
var img = document.createElement("img");
this.imgDiv = img;
getImage: function() {
if (!this.imgDiv) {
this.imgDiv = document.createElement("img");
img.className = "olTileImage";
// avoid image gallery menu in IE6
img.galleryImg = "no";
this.imgDiv.className = "olTileImage";
// avoid image gallery menu in IE6
this.imgDiv.galleryImg = "no";
var style = img.style,
gutter = this.layer.gutter;
if (gutter) {
var tileSize = this.layer.tileSize,
left = (gutter / tileSize.w * 100),
top = (gutter / tileSize.h * 100);
style.left = -left + "%";
style.top = -top + "%";
style.width = (2 * left + 100) + "%";
style.height = (2 * top + 100) + "%";
var style = this.imgDiv.style;
if (this.layer.gutter) {
var left = this.layer.gutter / this.layer.tileSize.w * 100;
var top = this.layer.gutter / this.layer.tileSize.h * 100;
style.left = -left + "%";
style.top = -top + "%";
style.width = (2 * left + 100) + "%";
style.height = (2 * top + 100) + "%";
style.position = "absolute";
} else {
style.width = "100%";
style.height = "100%";
}
style.display = "none";
style.position = "absolute";
} else {
style.width = "100%";
style.height = "100%";
}
style.display = "none";
if (this.layer.opacity < 1) {
OpenLayers.Util.modifyDOMElement(img, null, null, null, null, null,
null, this.layer.opacity);
}
if (this.layerAlphaHack) {
// move the image out of sight
style.paddingTop = style.height;
style.height = "0";
if (this.layer.opacity < 1) {
OpenLayers.Util.modifyDOMElement(this.imgDiv, null, null,
null, null, null, null,
this.layer.opacity);
}
if (this.layerAlphaHack) {
// move the image out of sight
style.paddingTop = style.height;
style.height = "0";
style.width = "100%";
}
if (this.frame) {
this.frame.appendChild(this.imgDiv);
}
}
this.frame.appendChild(img);
return img;
return this.imgDiv;
},
/**
@@ -262,7 +270,7 @@ OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
* Creates the content for the frame on the tile.
*/
initImage: function() {
var img = this.imgDiv || this.createImage();
var img = this.getImage();
if (this.url && img.getAttribute("src") == this.url) {
this.onImageLoad();
} else {
@@ -318,7 +326,7 @@ OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
* {DOMElement} The tile's markup
*/
getTile: function() {
return this.frame;
return this.frame ? this.frame : this.getImage();
},
/**
@@ -332,11 +340,13 @@ OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
* or if it's currently loading.
*/
createBackBuffer: function() {
if(!this.imgDiv || this.isLoading) {
return;
var backBuffer;
if (this.frame) {
backBuffer = this.frame.cloneNode(false);
backBuffer.appendChild(this.imgDiv);
} else {
backBuffer = this.imgDiv;
}
var backBuffer = this.frame.cloneNode(false);
backBuffer.appendChild(this.imgDiv);
this.imgDiv = null;
return backBuffer;
},

9
lib/OpenLayers/Tile/Image/IFrame.js
View File

@@ -55,7 +55,7 @@ OpenLayers.Tile.Image.IFrame = {
// We remove the imgDiv (really either an image or an iframe)
// from the frame and set it to null to make sure initImage
// will call createImage.
// will call getImage.
if(this.imgDiv && this.imgDiv.parentNode === this.frame) {
this.frame.removeChild(this.imgDiv);
@@ -73,10 +73,10 @@ OpenLayers.Tile.Image.IFrame = {
},
/**
* Method: createImage
* Method: getImage
* Creates the content for the frame on the tile.
*/
createImage: function() {
getImage: function() {
if (this.useIFrame === true) {
if (!this.frame.childNodes.length) {
var eventPane = document.createElement("div"),
@@ -130,7 +130,7 @@ OpenLayers.Tile.Image.IFrame = {
this.imgDiv = iframe;
return iframe;
} else {
return OpenLayers.Tile.Image.prototype.createImage.apply(this, arguments);
return OpenLayers.Tile.Image.prototype.getImage.apply(this, arguments);
}
},
@@ -180,7 +180,6 @@ OpenLayers.Tile.Image.IFrame = {
if (this.useIFrame === true) {
if (url) {
var form = this.createRequestForm();
this.frame.appendChild(this.imgDiv);
this.frame.appendChild(form);
form.submit();
this.frame.removeChild(form);