docs: def register_view(self, view):
          """Called when the View was registered
  
          Can be used e.g. to connect signals. Here, the destroy signal is connected to close the application
          """
          super(SingleWidgetWindowController, self).register_view(view)
          self.shortcut_manager = ShortcutManager(self.view['main_window'])
          self.register_actions(self.shortcut_manager)
  
          view['main_window'].connect('destroy', Gtk.main_quit)