code: function (e,x) {
          var me = this, menu = me.contextMenu;
          
          e.stopEvent();
          if (!menu.rendered) {
              menu.on('beforeshow', me.onDesktopMenuBeforeShow, me);
          }
          menu.showAt(e.getXY());
          menu.doConstrain();
      }
docs: ------------------------------------------------------ Event handler methods