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-----------------------------------------------------------------------------
-- |
-- Module : XMonadContrib.DwmPromote
-- Copyright : (c) Miikka Koskinen 2007
-- License : BSD3-style (see LICENSE)
--
-- Maintainer : arcatan@kapsi.fi
--
-----------------------------------------------------------------------------
--
-- Dwm-like swap function for xmonad.
--
-- Swaps focused window with the master window. If focus is in the
-- master, swap it with the next window in the stack. Focus stays in the
-- master.
--
-- To use, modify your Config.hs to:
--
-- import XMonadContrib.DwmPromote
--
-- and add a keybinding or substitute promote with dwmpromote:
--
-- , ((modMask, xK_Return), dwmpromote)
--
module XMonadContrib.DwmPromote (dwmpromote) where
import XMonad
import Operations (windows)
import StackSet
dwmpromote :: X ()
dwmpromote = windows swap
swap :: StackSet i a s -> StackSet i a s
swap = modify Empty $ \c -> case c of
Node _ [] [] -> c
Node t [] (x:rs) -> Node x [] (t:rs)
Node t ls rs -> Node t [] (ys ++ x : rs) where (x:ys) = reverse ls
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