menu.py 文件源码

def on_key(self, ch):
        if not self.items:
            return False

        if ch == curses.KEY_UP:
            self.selected = max(self.selected - 1, 0)

        elif ch == curses.KEY_DOWN:
            self.selected = min(len(self.selectable) - 1, self.selected + 1)

        elif ch == curses.KEY_HOME:
            self.selected = 0

        elif ch == curses.KEY_END:
            self.selected = len(self.selectable) - 1

        elif ch == curses.KEY_ENTER:
            key, title = self.items[self.selectable[self.selected]]
            self.select(key)
            return True  # no update necessary

        else:
            return False

        self.update()
        return True