           handler.call(this, event)
 
   didToggle: (event) ->
+    @saveSetting("open", @isOpen())
     @render()
 
   isOpen: ->


  renderTitle: ->
    @titleElement.innerHTML = @getTitle()

    {@compositionController, @composition} = @editorController

    @element = document.createElement("details")
    @element.open = true if @getSetting("open") is "true"
    @element.classList.add(@template)

    @titleElement = document.createElement("summary")
