vim.py 文件源码

def old_win_idx(self, window_id):
        r = None
        for winnr, window in zip(count(1), vim.windows):
            curwindow_id = self._vim_getwinvar(winnr, 'powerline_window_id')
            if curwindow_id and not (r is not None and curwindow_id == window_id):
                curwindow_id = int(curwindow_id)
            else:
                curwindow_id = self.last_window_id
                self.last_window_id += 1
                self._vim_setwinvar(winnr, 'powerline_window_id', curwindow_id)
            statusline = self.construct_window_statusline(curwindow_id)
            if self._vim_getwinvar(winnr, '&statusline') != statusline:
                self._vim_setwinvar(winnr, '&statusline', statusline)
            if curwindow_id == window_id if window_id else window is vim.current.window:
                r = (window, curwindow_id, winnr)
        return r