Fix for getFeatureFromEvent method on destroyed layer. (Closes #761) Review

by elem (yay)


git-svn-id: http://svn.openlayers.org/trunk/openlayers@4220 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Layer/Vector.js

@@ -361,6 +361,10 @@ OpenLayers.Layer.Vector = OpenLayers.Class(OpenLayers.Layer, {
      * {<OpenLayers.Feature.Vector>} A feature if one was under the event.
      */
     getFeatureFromEvent: function(evt) {
+        if (!this.renderer) {
+            OpenLayers.Console.error("getFeatureFromEvent called on layer with no renderer. This usually means you destroyed a layer, but not some handler which is associated with it."); 
+            return null;
+        }    
         var featureId = this.renderer.getFeatureIdFromEvent(evt);
         return this.getFeatureById(featureId);
     },