Allow spawning processes bound to workspaces

lib/ProcessWorkspaces.hs

@@ -0,0 +1,89 @@
+{-# LANGUAGE DeriveDataTypeable, TypeSynonymInstances, MultiParamTypeClasses, PatternGuards #-}
+
+module ProcessWorkspaces ( setProcessWorkspace
+                         , getProcessWorkspace
+                         , moveWindowHook
+                         , 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 Prelude hiding ( catch )
+import Control.OldException (catch)
+import Control.Monad
+import Data.Maybe
+import Data.Monoid
+import qualified Data.Map as M
+
+import Storage
+
+
+moveWindowHook :: ManageHook
+moveWindowHook = do
+  mp <- pid
+  io $ appendFile "/tmp/test" $ "Pid: " ++ show mp ++ "\n"
+  case mp of
+    Just p -> do
+      mws <- liftX $ getProcessWorkspace p
+      io $ appendFile "/tmp/test" $ "WS: " ++ show mws ++ "\n"
+      case mws of
+        Just ws -> do
+          io $ appendFile "/tmp/test" $ show ws ++ "\n"
+          doShift ws
+        _ ->
+          idHook
+    _ ->
+      idHook
+
+
+data ProcessWorkspaceStoreData = ProcessWorkspaceStoreData (M.Map ProcessID 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 -> WorkspaceId -> X ()
+setProcessWorkspace pid ws = do
+  io $ appendFile "/tmp/test" $ "Added " ++ show (pid, ws) ++ "\n"
+  ProcessWorkspaceStoreData map <- liftM (fromMaybe $ ProcessWorkspaceStoreData M.empty) $ getStoreData
+  map' <- filterPIDMap $ M.insert pid ws map
+  setStoreData $ ProcessWorkspaceStoreData map'
+  io (appendFile "/tmp/test" $ show map' ++ "\n")
+
+getProcessWorkspace :: ProcessID -> X (Maybe WorkspaceId)
+getProcessWorkspace pid = getStoreData >>= return . join . fmap (\(ProcessWorkspaceStoreData map) -> M.lookup pid map)
+
+
+spawnOn :: WorkspaceId -> String -> X ()
+spawnOn ws x = do
+  pid <- spawnPID x
+  setProcessWorkspace pid ws
+
+spawnOnCurrent :: String -> X ()
+spawnOnCurrent x = gets (W.currentTag . windowset) >>= \ws -> spawnOn ws x
+
+
+catchX' :: X a -> X a -> X a
+catchX' job errcase = do
+    st <- get
+    c <- ask
+    (a, s') <- io $ runX c st job `catch` \_ -> runX c st errcase
+    put s'
+    return a
+
+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 = catchX' (io (getProcessPriority pid) >> return True) (return False)

lib/Storage.hs

@@ -0,0 +1,65 @@
+{-# LANGUAGE DeriveDataTypeable, ExistentialQuantification, TypeSynonymInstances, MultiParamTypeClasses, ScopedTypeVariables, FlexibleInstances, PatternGuards #-}
+
+module Storage ( StoreData
+               , Storage
+               , storage
+               , getStoreData
+               , setStoreData
+               , updateStoreData
+               ) where
+
+import XMonad
+import qualified XMonad.StackSet as W
+import XMonad.Layout.LayoutModifier (LayoutModifier(..), ModifiedLayout(..))
+
+import Control.Applicative ((<$>))
+import Control.Monad
+
+import Data.IORef
+import qualified Data.Map as M
+import Data.Maybe
+import Data.Typeable
+
+
+class (Typeable d, Show d, Read d) => StoreData d
+
+
+data (StoreData d) => StorageMessage d = GetStoreData (IORef (Maybe d)) | SetStoreData d
+                                     deriving Typeable
+instance (StoreData d) => Message (StorageMessage d)
+
+
+data (StoreData d) => Storage d a = Storage d deriving (Show, Read)
+
+instance (StoreData d) => LayoutModifier (Storage d) a where
+  modifierDescription _ = "Storage"
+    
+  handleMess (Storage d) m
+    | Just (GetStoreData ref :: StorageMessage d) <- fromMessage m = do
+      io $ writeIORef ref $ Just d
+      return $ Nothing
+
+    | Just (SetStoreData d' :: StorageMessage d) <- fromMessage m = do
+      return $ Just $ Storage d'
+
+  handleMess _ _ = return Nothing
+
+
+storage :: (LayoutClass l a, StoreData d) => d -> l a -> ModifiedLayout (Storage d) l a
+storage def = ModifiedLayout $ Storage def
+
+
+getStoreData :: StoreData d => X (Maybe d)
+getStoreData = do
+  ref <- io . newIORef $ Nothing
+  broadcastMessage $ GetStoreData ref
+  io . readIORef $ ref
+
+
+setStoreData :: StoreData d => d -> X ()
+setStoreData = broadcastMessage . SetStoreData
+
+updateStoreData :: StoreData d => (d -> d) -> X ()
+updateStoreData f = do
+  d <- getStoreData
+  when (isJust d) $ setStoreData . f $ fromJust d

xmonad.hs

@@ -21,6 +21,7 @@ import Ratio((%))
 --import ConfigurableBorders
 import FullscreenManager
 import NoBorders
+import ProcessWorkspaces
 
 
 modm = mod4Mask
@@ -44,8 +45,7 @@ main = xmonad $ gnomeConfig
        , ("M-<F1>", viewOrWarp 0)
        , ("M-<F2>", viewOrWarp 1)
        , ("M-<F3>", viewOrWarp 2)
-       , ("M-p", spawn "exe=`dmenu_path | /home/neoraider/bin/dmemu -b` && eval \"exec $exe\"")
-
+       , ("M-p", spawnOnCurrent "exe=`dmenu_path | /home/neoraider/bin/dmemu -b` && eval \"exec $exe\"")
        ]
        `additionalMouseBindings`
        [ ((modm, button4), \_ -> sendMessage Shrink)
@@ -75,25 +75,11 @@ myStartupHook = do
   startupHook gnomeConfig
   setWMName "LG3D"
 
-isDialogWindow :: Query Bool
-isDialogWindow = do
-  atom__NET_WM_WINDOW_TYPE_DIALOG <- liftX $ getAtom "_NET_WM_WINDOW_TYPE_DIALOG"
-  atomProperty "_NET_WM_WINDOW_TYPE" =? atom__NET_WM_WINDOW_TYPE_DIALOG
-
-atomProperty :: String -> Query Atom
-atomProperty p = ask >>= (\w -> liftX $ withDisplay $ \d -> fmap (fromMaybe 0) $ getAtomProperty d w p)
-
-getAtomProperty :: Display -> Window -> String -> X (Maybe Atom)
-getAtomProperty d w p = do
-  a  <- getAtom p
-  md <- io $ getWindowProperty32 d a w
-  return $ fmap fromIntegral $ listToMaybe $ fromMaybe [] md
-
 
 myManageHook :: ManageHook
 myManageHook = composeAll
                [ composeOne
-                 [ isDialogWindow            -?> doFloat
+                 [ isDialog                  -?> doFloat
                  , className =? "Guake.py"   -?> doFloatMaybeFullscreen -- <+> doConfigBorderOff)
                    --, className =? "Do"         -?> (doFloat <+> doConfigBorderOff)
                  , className =? "MPlayer"    -?> doCenterFloat
@@ -104,11 +90,12 @@ myManageHook = composeAll
                  , stringProperty "WM_ICON_NAME" =? "ZeroGS" -?> doFloat
                  , isFullscreen              -?> doFullscreen
                  ]
+               , moveWindowHook
                , manageHook gnomeConfig
                ]
         
 
-myLayoutHook = manageFullscreen $ smartBorders (Full ||| tiled ||| Mirror tiled)
+myLayoutHook = processWorkspaceStorage $ manageFullscreen $ smartBorders (Full ||| tiled ||| Mirror tiled)
   where
     -- default tiling algorithm partitions the screen into two panes
     tiled   = ResizableTall nmaster delta ratio []