Ticket #842: Image.js.patch

lib/OpenLayers/Tile/Image.js

@@ -216 +216 @@
-        OpenLayers.Event.observe(this.imgDiv, 'load',
-                                 OpenLayers.Function.bind(onload, this));
-
+        // Bind a listener to the onerror of the image div so that we
+        // can registere when a tile has finished loading with errors.
+        var onerror = function() {
+
+            // If we have gone through all image reload attempts, it is time
+            // to realize that we are done with this image. Since
+            // OpenLayers.Util.onImageLoadError already has taken care about
+            // the error, we can continue as if the image was loaded
+            // successfully.
+            if (this.imgDiv._attempts > OpenLayers.IMAGE_RELOAD_ATTEMPTS) {
+                onload.call(this);
+            }
+        };
+        OpenLayers.Event.observe(this.imgDiv, "error",
+                                 OpenLayers.Function.bind(onerror, this));
-    },
-
-    /**