fix for overviewmap open/close button doubleclick resulting in map zoom.

confirmed by erik, caught by acceptance tests. (Closes #757)


git-svn-id: http://svn.openlayers.org/trunk/openlayers@4242 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Control/OverviewMap.js

@@ -221,11 +221,6 @@ OpenLayers.Control.OverviewMap = OpenLayers.Class(OpenLayers.Control, {
             OpenLayers.Event.observe(this.maximizeDiv, 
                           'click', 
                           this.maximizeControl.bindAsEventListener(this));
-            OpenLayers.Event.observe(this.maximizeDiv,
-                          'dblclick',
-                          function(e) {
-                              OpenLayers.Event.stop(e);
-                          });
             this.div.appendChild(this.maximizeDiv);
     
             // minimize button div
@@ -241,13 +236,21 @@ OpenLayers.Control.OverviewMap = OpenLayers.Class(OpenLayers.Control, {
             OpenLayers.Event.observe(this.minimizeDiv, 
                           'click', 
                           this.minimizeControl.bindAsEventListener(this));
-            OpenLayers.Event.observe(this.minimizeDiv,
-                          'dblclick',
-                          function(e) {
-                              OpenLayers.Event.stop(e);
-                          });
             this.div.appendChild(this.minimizeDiv);
             
+            var eventsToStop = ['dblclick','mousedown'];
+            
+            for (var i = 0; i < eventsToStop.length; i++) {
+
+                OpenLayers.Event.observe(this.maximizeDiv, 
+                                         eventsToStop[i], 
+                                         OpenLayers.Event.stop);
+
+                OpenLayers.Event.observe(this.minimizeDiv,
+                                         eventsToStop[i], 
+                                         OpenLayers.Event.stop);
+            }
+            
             this.minimizeControl();
         } else {
             // show the overview map