real_edit.py 文件源码

def unhandled_keypress(self, k):
        """Last resort for keypresses."""

        if k == "f5":
            self.save_file()
        elif k == "f8":
            raise urwid.ExitMainLoop()
        elif k == "delete":
            # delete at end of line
            self.walker.combine_focus_with_next()
        elif k == "backspace":
            # backspace at beginning of line
            self.walker.combine_focus_with_prev()
        elif k == "enter":
            # start new line
            self.walker.split_focus()
            # move the cursor to the new line and reset pref_col
            self.loop.process_input(["down", "home"])
        elif k == "right":
            w, pos = self.walker.get_focus()
            w, pos = self.walker.get_next(pos)
            if w:
                self.listbox.set_focus(pos, 'above')
                self.loop.process_input(["home"])
        elif k == "left":
            w, pos = self.walker.get_focus()
            w, pos = self.walker.get_prev(pos)
            if w:
                self.listbox.set_focus(pos, 'below')
                self.loop.process_input(["end"])
        else:
            return
        return True