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58 lines
1.9 KiB
Haskell
58 lines
1.9 KiB
Haskell
{-# LANGUAGE FlexibleContexts, FlexibleInstances, MultiParamTypeClasses, TypeSynonymInstances #-}
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-----------------------------------------------------------------------------
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-- |
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-- Module : XMonad.Layout.MagicFocus
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-- Copyright : (c) Peter De Wachter <pdewacht@gmail.com>
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-- License : BSD
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--
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-- Maintainer : Peter De Wachter <pdewacht@gmail.com>
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-- Stability : unstable
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-- Portability : unportable
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--
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-- Automagically put the focused window in the master area.
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-----------------------------------------------------------------------------
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module XMonad.Layout.MagicFocus
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(-- * Usage
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-- $usage
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MagicFocus(MagicFocus)
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) where
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import Graphics.X11.Xlib
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import XMonad
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import XMonad.StackSet
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-- $usage
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-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:
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--
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-- > import XMonad.Layout.MagicFocus
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--
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-- Then edit your @layoutHook@ by adding the MagicFocus layout
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-- modifier:
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--
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-- > myLayouts = MagicFocus (Tall 1 (3/100) (1/2)) ||| Full ||| etc..
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-- > main = xmonad defaultConfig { layoutHook = myLayouts }
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--
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-- For more detailed instructions on editing the layoutHook see:
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--
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-- "XMonad.Doc.Extending#Editing_the_layout_hook"
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data MagicFocus l a = MagicFocus (l a) deriving ( Show , Read )
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instance (LayoutClass l Window) => LayoutClass (MagicFocus l) Window where
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doLayout = magicFocus
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magicFocus :: LayoutClass l Window => MagicFocus l Window -> Rectangle
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-> Stack Window -> X ([(Window, Rectangle)], Maybe (MagicFocus l Window))
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magicFocus (MagicFocus l) r s =
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withWindowSet $ \wset -> do
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(ws,nl) <- doLayout l r (swap s $ peek wset)
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case nl of
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Nothing -> return (ws, Nothing)
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Just l' -> return (ws, Just $ MagicFocus l')
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swap :: (Eq a) => Stack a -> Maybe a -> Stack a
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swap (Stack f u d) focused | Just f == focused = Stack f [] (reverse u ++ d)
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| otherwise = Stack f u d
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