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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
-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:
--
-- > import XMonad.Layout.MagicFocus
--
-- Then edit your @layoutHook@ by adding the MagicFocus layout
-- modifier:
--
-- > myLayouts = MagicFocus (Tall 1 (3/100) (1/2)) ||| Full ||| etc..
-- > main = xmonad defaultConfig { layoutHook = myLayouts }
--
-- For more detailed instructions on editing the layoutHook see:
--
-- "XMonad.Doc.Extending#Editing_the_layout_hook"
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
|
