     displayFeedback: false
     displayFormats:  false
     displayTags: false
+    isSelected: false
 
   toggleFeedbackDisplay: (ev) ->
     @setState(displayFeedback: not @state.displayFeedback)

  displayName: 'Demo'
  render: ->
    demos =
      notices: <NoticesDemo />
      exercise: <ExerciseDemo/>
      exercisePreview: <ExercisePreviewDemo/>
      breadcrumbs: <BreadcrumbDemo/>
      html: <HTMLDemo/>



  toggleTagsDisplay: (ev) ->
    @setState(displayTags: not @state.TagsFormats)

  onSelection: ->
    @setState(isSelected: not @state.isSelected)

  onDetailsClick: (ev, exercise) ->
    console.warn "Exercise details was clicked"

  render: ->
    {displayFeedback, displayFormats, displayTags} = @state
