如何在XMonad中获取Stackset中Window的索引？

Question

如何获取string.dump中Window的索引？

我已经浏览了http://hackage.haskell.org/package/xmonad-0.13/docs/XMonad-StackSet.html，但找不到任何相关内容。

Answer 1

import qualified XMonad.StackSet as W
import XMonad.StackSet
import Data.List (elemIndex)


windowIndex :: Window -> StackSet i l Window s sd -> Maybe Int
windowIndex w s = elemIndex w $ allWindowsInCurrentWorkspace s


allWindowsInCurrentWorkspace :: W.StackSet i l a sid sd -> [a]
allWindowsInCurrentWorkspace ws =
  W.integrate' . W.stack . W.workspace . W.current $ ws