//关闭TabPanel标签
Ext.ux.TabCloseMenu = function(){
  var tabs, menu, ctxItem;
  this.init = function(tp) {
     tabs = tp;
     tabs.on('contextmenu', onContextMenu);
  }
  function onContextMenu(ts, item, me) {
     if (!menu) { // create context menu on first right click
        menu = new Ext.menu.Menu([{
           id: tabs.id + '-close',
           text: '关闭当前标签',
           iconCls:"closetabone",
           handler : function() {
              tabs.remove(ctxItem);
           }
        },{
           id: tabs.id + '-close-others',
           text: '除此之外全部关闭',
           iconCls:"closetaball",
           handler : function() {
              tabs.items.each(function(item){
                 if(item.closable && item != ctxItem){
                    tabs.remove(item);
                 }
              });
           }
        }]);
     }
     ctxItem = item;
     var items = menu.items;
     items.get(tabs.id + '-close').setDisabled(!item.closable);
     var disableOthers = true;
     tabs.items.each(function() {
        if (this != item && this.closable) {
           disableOthers = false;
           return false;
        }
     });
     items.get(tabs.id + '-close-others').setDisabled(disableOthers);
     menu.showAt(me.getXY());
  }
};
   