     .text '取消'
     .hide()
   operationDone = (e)=>
+    @shortOperationBusy = false
     $ 'body'
       .removeClass 'loading'
     if e

  $ document.createElement 'i'
    .addClass "fa fa-#{icon}"
@shortOperation = (title, operation)=>
  $ '#loadingText'
    .text title||''
  $ 'body'

    .messenger()
  @async.forever (doneForever)=>
      setTimeout =>
          if @m_active && !@shortOperationBusy
            @refresh_filelist (e)=>
              if e
                msg = Messenger().post
