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{-# LANGUAGE DeriveDataTypeable, TypeSynonymInstances, MultiParamTypeClasses, PatternGuards #-}
module ProcessWorkspaces ( setProcessWorkspace
, getProcessWorkspace
, doAutoShift
, doIgnoreProcessWorkspace
, regroupProcess
, regroupWinProcess
, shiftIgnoreGroup
, shiftWinIgnoreGroup
, shiftGroup
, shiftWinGroup
, processWorkspaceStorage
, spawnOn
, spawnOnCurrent
) where
import XMonad hiding (moveWindow)
import qualified XMonad.StackSet as W
import XMonad.Layout.LayoutModifier (LayoutModifier(..), ModifiedLayout(..))
import XMonad.Hooks.ManageHelpers (pid)
import Graphics.X11.Types (Window)
import System.Posix.Process (getProcessPriority)
import System.Posix.Types (ProcessID)
import Control.Monad
import Data.Maybe
import qualified Data.Map as M
import Storage
doAutoShift :: ManageHook
doAutoShift = do
mp <- pid
case mp of
Just p -> do
mws <- liftX $ getProcessWorkspace p
case mws of
Just ws ->
doShift ws
_ -> do
idHook
_ ->
idHook
doIgnoreProcessWorkspace :: ManageHook
doIgnoreProcessWorkspace = do
mp <- pid
when (isJust mp) $
liftX $ setProcessWorkspace (fromJust mp) Nothing
idHook
regroupProcess :: WorkspaceId -> X ()
regroupProcess ws = withFocused $ regroupWinProcess ws
regroupWinProcess :: WorkspaceId -> Window -> X ()
regroupWinProcess ws w = do
mp <- runQuery pid w
when (isJust mp) $ setProcessWorkspace (fromJust mp) (Just ws)
shiftWinGroup ws w
shiftIgnoreGroup :: WorkspaceId -> X ()
shiftIgnoreGroup ws = withFocused $ shiftWinIgnoreGroup ws
shiftWinIgnoreGroup :: WorkspaceId -> Window -> X ()
shiftWinIgnoreGroup ws w = do
runQuery doIgnoreProcessWorkspace w
windows $ W.shiftWin ws w
shiftGroup :: WorkspaceId -> X ()
shiftGroup ws = withFocused $ shiftWinGroup ws
shiftWinGroup :: WorkspaceId -> Window -> X ()
shiftWinGroup ws w = do
mp <- runQuery pid w
case mp of
Just p -> do
mws <- getProcessWorkspace p
case mws of
Just pws -> do
setProcessWorkspace p (Just ws)
wins <- withWindowSet $ return . W.allWindows
windows =<< foldM (\f w' -> runQuery pid w' >>= \mp' -> return $ if (mp' == Just p) then W.shiftWin ws w' . f else f) id wins
_ ->
windows $ W.shiftWin ws w
_ ->
windows $ W.shiftWin ws w
data ProcessWorkspaceStoreData = ProcessWorkspaceStoreData (M.Map ProcessID (Maybe WorkspaceId))
deriving (Typeable, Show, Read)
instance StoreData ProcessWorkspaceStoreData
processWorkspaceStorage :: (LayoutClass l a) => l a -> ModifiedLayout (Storage ProcessWorkspaceStoreData) l a
processWorkspaceStorage = storage $ ProcessWorkspaceStoreData M.empty
setProcessWorkspace :: ProcessID -> Maybe WorkspaceId -> X ()
setProcessWorkspace pid ws = do
ProcessWorkspaceStoreData map <- liftM (fromMaybe $ ProcessWorkspaceStoreData M.empty) $ getStoreData
map' <- filterPIDMap $ M.insert pid ws map
setStoreData $ ProcessWorkspaceStoreData map'
getProcessWorkspace :: ProcessID -> X (Maybe WorkspaceId)
getProcessWorkspace pid = do
ws <- getStoreData >>= return . join . fmap (\(ProcessWorkspaceStoreData map) -> M.lookup pid $ map)
case ws of
Nothing -> do
wsc <- gets (W.currentTag . windowset)
setProcessWorkspace pid (Just wsc)
return $ Just wsc
Just Nothing ->
return Nothing
Just (Just ws') ->
return $ Just ws'
spawnOn :: Maybe WorkspaceId -> String -> X ()
spawnOn ws x = do
pid <- spawnPID x
setProcessWorkspace pid ws
spawnOnCurrent :: String -> X ()
spawnOnCurrent x = gets (W.currentTag . windowset) >>= \ws -> spawnOn (Just ws) x
filterPIDMap :: M.Map ProcessID a -> X (M.Map ProcessID a)
filterPIDMap = liftM M.fromAscList . filterM (pidExists . fst) . M.toAscList
where
pidExists :: ProcessID -> X Bool
pidExists pid = io $ ((getProcessPriority pid) >> return True) `catch` (\_ -> return False)
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