docs: def _get_state(self):
          """get state instance which was clicked on
  
          :return: State that represents the icon which was clicked on
          :rtype: rafcon.core.states.State
          """
  
          selected = self.view.get_selected_items()
          if not selected:
              return
          shorthand, state_class = self.view.states[selected[0][0]]
          return state_class()