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|
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
-- experimental, not expected to work
{- our goal:
config = do
add layout Full
set terminal "urxvt"
add keys [blah blah blah]
-}
{-
ideas:
composability!
"only once" features like avoidStruts, ewmhDesktops
-}
module XMonad.Config.Monad where
import XMonad hiding (terminal, keys)
import qualified XMonad as X
import Control.Monad.Writer
import Data.Monoid
import Data.Accessor
import Data.Accessor.Basic hiding (set)
-- Ugly! To fix this we'll need to change the kind of XConfig.
newtype LayoutList a = LL [Layout a] deriving Monoid
type W = Dual (Endo (XConfig LayoutList))
mkW = Dual . Endo
newtype Config a = C (WriterT W IO a)
deriving (Functor, Monad, MonadWriter W)
-- references:
layout = fromSetGet (\x c -> c { layoutHook = x }) layoutHook
terminal = fromSetGet (\x c -> c { X.terminal = x }) X.terminal
keys = fromSetGet (\x c -> c { X.keys = x }) X.keys
set :: Accessor (XConfig LayoutList) a -> a -> Config ()
set r x = tell (mkW $ r ^= x)
add r x = tell (mkW (r ^: mappend x))
--
example :: Config ()
example = do
add layout $ LL [Layout $ Full] -- make this better
set terminal "urxvt"
|
