ui_chanwidget.py 文件源码

def __init__(self, caption, callback,arg=None):
        super(NewButton, self).__init__("")
        urwid.connect_signal(self, 'click', callback, arg)
        self._w = urwid.AttrMap(urwid.SelectableIcon(caption, 1),
                                None, focus_map='status_bar')