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{-# LANGUAGE TypeSynonymInstances, MultiParamTypeClasses, DeriveDataTypeable #-}
{-# LANGUAGE PatternGuards, FlexibleContexts, FlexibleInstances #-}
-----------------------------------------------------------------------------
-- |
-- Module : XMonad.Layout.BoringWindows
-- Copyright : (c) 2008 David Roundy <droundy@darcs.net>
-- License : BSD3-style (see LICENSE)
--
-- Maintainer : none
-- Stability : unstable
-- Portability : unportable
--
-- BoringWindows is an extension to allow windows to be marked boring
--
-----------------------------------------------------------------------------
module XMonad.Layout.BoringWindows (
-- * Usage
-- $usage
boringWindows, boringAuto,
markBoring, clearBoring,
focusUp, focusDown, focusMaster,
UpdateBoring(UpdateBoring),
BoringMessage(Replace,Merge),
BoringWindows()
) where
import XMonad.Layout.LayoutModifier(ModifiedLayout(..),
LayoutModifier(handleMessOrMaybeModifyIt, redoLayout))
import XMonad(Typeable, LayoutClass, Message, X, fromMessage,
sendMessage, windows, withFocused, Window)
import Control.Applicative((<$>))
import Control.Monad(Monad(return, (>>)))
import Data.List((\\), union)
import Data.Maybe(Maybe(..), maybe, fromMaybe, listToMaybe,
maybeToList)
import qualified Data.Map as M
import qualified XMonad.StackSet as W
-- $usage
-- You can use this module with the following in your
-- @~\/.xmonad\/xmonad.hs@:
--
-- > import XMonad.Layout.BoringWindows
--
-- Then edit your @layoutHook@ by adding the layout modifier:
--
-- > myLayout = boringWindows (Full ||| etc..)
-- > main = xmonad defaultConfig { layoutHook = myLayout }
--
-- Then to your keybindings, add:
--
-- > , ((modm, xK_j), focusUp)
-- > , ((modm, xK_k), focusDown)
-- > , ((modm, xK_m), focusMaster)
--
-- For more detailed instructions on editing the layoutHook see:
--
-- "XMonad.Doc.Extending#Editing_the_layout_hook"
data BoringMessage = FocusUp | FocusDown | FocusMaster | IsBoring Window | ClearBoring
| Replace String [Window]
| Merge String [Window]
deriving ( Read, Show, Typeable )
instance Message BoringMessage
-- | UpdateBoring is sent before attempting to view another boring window, so
-- that layouts have a chance to mark boring windows.
data UpdateBoring = UpdateBoring
deriving (Typeable)
instance Message UpdateBoring
markBoring, clearBoring, focusUp, focusDown, focusMaster :: X ()
markBoring = withFocused (sendMessage . IsBoring)
clearBoring = sendMessage ClearBoring
focusUp = sendMessage UpdateBoring >> sendMessage FocusUp
focusDown = sendMessage UpdateBoring >> sendMessage FocusDown
focusMaster = sendMessage UpdateBoring >> sendMessage FocusMaster
data BoringWindows a = BoringWindows
{ namedBoring :: M.Map String [a] -- ^ store borings with a specific source
, chosenBoring :: [a] -- ^ user-chosen borings
, hiddenBoring :: Maybe [a] -- ^ maybe mark hidden windows
} deriving (Show,Read,Typeable)
boringWindows :: (LayoutClass l a, Eq a) => l a -> ModifiedLayout BoringWindows l a
boringWindows = ModifiedLayout (BoringWindows M.empty [] Nothing)
-- | Mark windows that are not given rectangles as boring
boringAuto :: (LayoutClass l a, Eq a) => l a -> ModifiedLayout BoringWindows l a
boringAuto = ModifiedLayout (BoringWindows M.empty [] (Just []))
instance LayoutModifier BoringWindows Window where
redoLayout (b@BoringWindows { hiddenBoring = bs }) _r mst arrs = do
let bs' = W.integrate' mst \\ map fst arrs
return (arrs, Just $ b { hiddenBoring = const bs' <$> bs } )
handleMessOrMaybeModifyIt bst@(BoringWindows nbs cbs lbs) m
| Just (Replace k ws) <- fromMessage m
, maybe True (ws/=) (M.lookup k nbs) =
let nnb = if null ws then M.delete k nbs
else M.insert k ws nbs
in rjl bst { namedBoring = nnb }
| Just (Merge k ws) <- fromMessage m
, maybe True (not . null . (ws \\)) (M.lookup k nbs) =
rjl bst { namedBoring = M.insertWith union k ws nbs }
| Just (IsBoring w) <- fromMessage m , w `notElem` cbs =
rjl bst { chosenBoring = w:cbs }
| Just ClearBoring <- fromMessage m, not (null cbs) =
rjl bst { namedBoring = M.empty, chosenBoring = []}
| Just FocusUp <- fromMessage m =
do windows $ W.modify' $ skipBoring W.focusUp'
return Nothing
| Just FocusDown <- fromMessage m =
do windows $ W.modify' $ skipBoring W.focusDown'
return Nothing
| Just FocusMaster <- fromMessage m =
do windows $ W.modify'
$ skipBoring W.focusDown' -- wiggle focus to make sure
. skipBoring W.focusUp' -- no boring window gets the focus
. focusMaster'
return Nothing
where skipBoring f st = fromMaybe st $ listToMaybe
$ filter ((`notElem` W.focus st:bs) . W.focus)
$ take (length $ W.integrate st)
$ iterate f st
bs = concat $ cbs:maybeToList lbs ++ M.elems nbs
rjl = return . Just . Left
handleMessOrMaybeModifyIt _ _ = return Nothing
-- | Variant of 'focusMaster' that works on a
-- 'Stack' rather than an entire 'StackSet'.
focusMaster' :: W.Stack a -> W.Stack a
focusMaster' c@(W.Stack _ [] _) = c
focusMaster' (W.Stack t ls rs) = W.Stack x [] (xs ++ t : rs) where (x:xs) = reverse ls
|
