Don't fire draggable:end if draggable:start has not been fired

Author: cdauth

ngDraggable.js

@@ -209,7 +209,7 @@ angular.module("ngDraggable", [])
                 };
 
                 var onrelease = function(evt) {
-                    if (!_dragEnabled)
+                    if (!_dragEnabled || !element.hasClass('dragging'))
                         return;
                     evt.preventDefault();
                     $rootScope.$broadcast('draggable:end', {x:_mx, y:_my, tx:_tx, ty:_ty, event:evt, element:element, data:_data, callback:onDragComplete, uid: _myid});