def __initialize_manager(self):
		self.__config_mgr	= self.__manager.load_config_manager()

		self.__backend_mgr   = self.__manager.load_backend_manager()
		self.__bootstrap_mgr = self.__manager.load_bootstrap_manager()
		self.__navigator_mgr = self.__manager.load_navigator_manager()
		self.__context_mgr  = self.__manager.load_context_manager()
		self.__action_mgr	= self.__manager.load_action_manager()
		self.__launcher_mgr  = self.__manager.load_launcher_manager()
def _get_selected_path(self):
        """
        Helper function to get the selected path

        @return Gtk.TreePath : returns exactly one path for the selected object
                               or None
        """
        selection = self.get_selection()
        if selection:
            model, selected_paths = self.get_selection().get_selected_rows()
            if selected_paths:
                return selected_paths[0]
        return None