Merge pull request #432 from ahocevar/iframe-opacity

Long URLs messing up Opacity. r=@elemoine,@lewinmadrid

lib/OpenLayers/Layer.js

@@ -1287,6 +1287,11 @@ OpenLayers.Layer = OpenLayers.Class({
             var childNodes = this.div.childNodes;
             for(var i = 0, len = childNodes.length; i < len; ++i) {
                 var element = childNodes[i].firstChild || childNodes[i];
+                var lastChild = childNodes[i].lastChild;
+                //TODO de-uglify this
+                if (lastChild && lastChild.nodeName.toLowerCase() === "iframe") {
+                    element = lastChild.parentNode;
+                }
                 OpenLayers.Util.modifyDOMElement(element, null, null, null, 
                                                  null, null, null, opacity);
             }

lib/OpenLayers/Tile/Image/IFrame.js

@@ -196,6 +196,19 @@ OpenLayers.Tile.Image.IFrame = {
             OpenLayers.Tile.Image.prototype.setImgSrc.apply(this, arguments);
         }
     },
+    
+    /**
+     * Method: onImageLoad
+     * Handler for the image onload event
+     */
+    onImageLoad: function() {
+        //TODO de-uglify opacity handling
+        OpenLayers.Tile.Image.prototype.onImageLoad.apply(this, arguments);
+        if (this.useIFrame === true) {
+            this.imgDiv.style.opacity = 1;
+            this.frame.style.opacity = this.layer.opacity;
+        }
+    },
 
     /**
      * Method: createBackBuffer