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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
) where
import XMonad
import XMonad.StackSet
import XMonad.Layout.LayoutModifier
-- $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"
-- | Create a new layout which automagically puts the focused window
-- in the master area.
magicFocus :: l a -> ModifiedLayout MagicFocus l a
magicFocus = ModifiedLayout MagicFocus
data MagicFocus a = MagicFocus deriving (Show, Read)
instance LayoutModifier MagicFocus Window where
modifyLayout MagicFocus (Workspace i l s) r =
withWindowSet $ \wset ->
runLayout (Workspace i l (s >>= \st -> Just $ swap st (peek wset))) r
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
|
