bookmarks-indicator.py 文件源码

def append_dummy(self, widget):
        '''
        Insert a dummy separator in the submenu of a folder item.
        Thanks to this function item representing folders always have an arrow,
        and it is possible to expand the folder content only when the user
        actually hovers the item.
        '''
        submenu = gtk.Menu()
        self.append_separator(submenu)
        widget.set_submenu(submenu)
        return submenu