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56 lines
1.8 KiB
Haskell
56 lines
1.8 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
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) where
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import XMonad
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import XMonad.StackSet
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import XMonad.Layout.LayoutModifier
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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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-- | Create a new layout which automagically puts the focused window
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-- in the master area.
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magicFocus :: l a -> ModifiedLayout MagicFocus l a
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magicFocus = ModifiedLayout MagicFocus
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data MagicFocus a = MagicFocus deriving (Show, Read)
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instance LayoutModifier MagicFocus Window where
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modifyLayout MagicFocus (Workspace i l s) r =
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withWindowSet $ \wset ->
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runLayout (Workspace i l (s >>= \st -> Just $ swap st (peek wset))) r
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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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