def onUpdate(self, event):
isStartEvent = event.type == ObservableEvent.start and event.getParam(ObservableEvent.name)
if isStartEvent:
self.scrollToItem(event.getParam(ObservableEvent.name))
isCloseEvent = event.type == ObservableEvent.close and hasattr(self, "item")
if isCloseEvent:
keeper = Keeper()
keeper.setLastState(self.getCurrentState())
