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|
{-# LANGUAGE FlexibleContexts, FlexibleInstances, MultiParamTypeClasses, TypeSynonymInstances #-}
-----------------------------------------------------------------------------
-- |
-- Module : XMonad.Layout.MagicFocus
-- Copyright : (c) Peter De Wachter <pdewacht@gmail.com>
-- License : BSD
--
-- Maintainer : Peter De Wachter <pdewacht@gmail.com>
-- Stability : unstable
-- Portability : unportable
--
-- Automagically put the focused window in the master area.
-----------------------------------------------------------------------------
module XMonad.Layout.MagicFocus
(-- * Usage
-- $usage
MagicFocus(MagicFocus)
) where
import Graphics.X11.Xlib
import XMonad
import XMonad.StackSet
-- $usage
-- > import XMonad.Layout.MagicFocus
-- > layouts = [ Layout $ MagicFocus tiled , Layout $ MagicFocus $ Mirror tiled ]
-- %import XMonad.Layout.MagicFocus
-- %layout , Layout $ MagicFocus tiled
-- %layout , Layout $ MagicFocus $ Mirror tiled
data MagicFocus l a = MagicFocus (l a) deriving ( Show , Read )
instance (LayoutClass l Window) => LayoutClass (MagicFocus l) Window where
doLayout = magicFocus
magicFocus :: LayoutClass l Window => MagicFocus l Window -> Rectangle
-> Stack Window -> X ([(Window, Rectangle)], Maybe (MagicFocus l Window))
magicFocus (MagicFocus l) r s =
withWindowSet $ \wset -> do
(ws,nl) <- doLayout l r (swap s $ peek wset)
case nl of
Nothing -> return (ws, Nothing)
Just l' -> return (ws, Just $ MagicFocus l')
swap :: (Eq a) => Stack a -> Maybe a -> Stack a
swap (Stack f u d) focused | Just f == focused = Stack f [] (reverse u ++ d)
| otherwise = Stack f u d
|
