gitchat_ui.py 文件源码

def keypress(self, size, key):
        if key == 'enter':
            line = self.edit_text.strip()
            if line:
                urwid.emit_signal(self, 'line_entered', line)
                self.history.append(line)
            self._history_index = len(self.history)
            self.edit_text = u''
        if key == 'up':

            self._history_index -= 1
            if self._history_index < 0:
                self._history_index = 0
            else:
                self.edit_text = self.history[self._history_index]
        if key == 'down':
            self._history_index += 1
            if self._history_index >= len(self.history):
                self._history_index = len(self.history)
                self.edit_text = u''
            else:
                self.edit_text = self.history[self._history_index]
        else:
            urwid.Edit.keypress(self, size, key)