fix for #457 - allow specification of whether or not to let events fallthrough the map

git-svn-id: http://svn.openlayers.org/trunk/openlayers@2863 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Map.js

@@ -127,6 +127,15 @@ OpenLayers.Map.prototype = {
     /** @type string */
     theme: null,
 
+    /** Should OpenLayers allow events on the map to fall through to other
+     *   elements on the page, or should it swallow them? (#457)
+     * 
+     *  Default is to swallow them.
+     * 
+     * @type boolean 
+     */
+    fallThrough: false,
+
     /**
      * @constructor
      * 
@@ -135,6 +144,9 @@ OpenLayers.Map.prototype = {
      */    
     initialize: function (div, options) {
         
+        //set the default options
+        this.setOptions(options);
+
         this.div = div = OpenLayers.Util.getElement(div);
 
         // the viewPortDiv is the outermost div we modify
@@ -154,7 +166,7 @@ OpenLayers.Map.prototype = {
         
         this.viewPortDiv.appendChild(this.layerContainerDiv);
 
-        this.events = new OpenLayers.Events(this, div, this.EVENT_TYPES);
+        this.events = new OpenLayers.Events(this, div, this.EVENT_TYPES, this.fallThrough);
 
         this.updateSize();
  
@@ -172,9 +184,6 @@ OpenLayers.Map.prototype = {
                           this.updateSize.bindAsEventListener(this));
         }
         
-        //set the default options
-        this.setOptions(options);
-        
         // only append link stylesheet if the theme property is set
         if(this.theme) {
             var cssNode = document.createElement('link');