def _update_proxy(self, change):
        """ An observer which sends the state change to the proxy.

        """
        if change['type'] == 'event' and self.proxy_is_active:
            self.proxy.set_opened(change['name'] == 'show')
        else:
            super(ActionMenuView, self)._update_proxy(change)
An observer which sends the state change to the proxy.