Merge pull request #702 from ahocevar/smart-queue

New tile image cache and tile queue improvements. r=@bartvde,@elemoine

lib/OpenLayers/Map.js

@@ -370,6 +370,14 @@ OpenLayers.Map = OpenLayers.Class({
      *     property at the time the control is added to the map. 
      */
     displayProjection: null,
+    
+    /**
+     * APIProperty: tileManager
+     * {<OpenLayers.TileManager>} If configured at construction time, the map
+     * will use the TileManager to queue image requests and to cache tile image
+     * elements.
+     */
+    tileManager: null,
 
     /**
      * APIProperty: fallThrough
@@ -579,6 +587,10 @@ OpenLayers.Map = OpenLayers.Class({
             this, this.viewPortDiv, null, this.fallThrough, 
             {includeXY: true}
         );
+        
+        if (this.tileManager) {
+            this.tileManager.addMap(this);
+        }
 
         // the layerContainerDiv is the one that holds all the layers
         id = this.id + "_OpenLayers_Container";
@@ -778,6 +790,11 @@ OpenLayers.Map = OpenLayers.Class({
             this.viewPortDiv.parentNode.removeChild(this.viewPortDiv);
         }
         this.viewPortDiv = null;
+        
+        if (this.tileManager) {
+            this.tileManager.removeMap(this);
+            this.tileManager = null;
+        }
 
         if(this.eventListeners) {
             this.events.un(this.eventListeners);