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XMonad
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38
Main.hs
38
Main.hs
@@ -26,7 +26,7 @@ import Graphics.X11.Xlib.Extras
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import Numeric
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import Control.Monad.State
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import WMonad
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import XMonad
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import qualified StackSet as W
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--
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@@ -38,7 +38,7 @@ workspaces = 9
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--
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-- The keys list
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--
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keys :: M.Map (KeyMask, KeySym) (W ())
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keys :: M.Map (KeyMask, KeySym) (X ())
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keys = M.fromList $
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[ ((mod1Mask .|. shiftMask, xK_Return), spawn "xterm")
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, ((mod1Mask, xK_p ), spawn "exe=`dmenu_path | dmenu` && exec $exe")
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@@ -61,7 +61,7 @@ main :: IO ()
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main = do
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dpy <- openDisplay ""
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let dflt = defaultScreen dpy
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st = WState
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st = XState
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{ display = dpy
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, screenWidth = displayWidth dpy dflt
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, screenHeight = displayHeight dpy dflt
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@@ -80,7 +80,7 @@ main = do
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ws <- scan dpy rootw
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allocaXEvent $ \e ->
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runW st $ do
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runX st $ do
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mapM_ manage ws
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forever $ handle =<< xevent dpy e
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where
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@@ -89,7 +89,7 @@ main = do
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forever a = a >> forever a
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-- ---------------------------------------------------------------------
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-- IO stuff. Doesn't require any W state
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-- IO stuff. Doesn't require any X state
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-- Most of these things run only on startup (bar grabkeys)
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-- | scan for any initial windows to manage
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@@ -123,18 +123,18 @@ grabKeys dpy rootw = do
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-- [Expose] = expose,
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-- [PropertyNotify] = propertynotify,
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--
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-- Todo: seperate IO from W monad stuff. We want to be able to test the
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-- Todo: seperate IO from X monad stuff. We want to be able to test the
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-- handler, and client functions, with dummy X interface ops, in QuickCheck
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--
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-- Will require an abstract interpreter from Event -> W Action, which
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-- modifies the internal W state, and then produces an IO action to
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-- Will require an abstract interpreter from Event -> X Action, which
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-- modifies the internal X state, and then produces an IO action to
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-- evaluate.
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--
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-- XCreateWindowEvent(3X11)
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-- Window manager clients normally should ignore this window if the
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-- override_redirect member is True.
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--
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handle :: Event -> W ()
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handle :: Event -> X ()
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handle (MapRequestEvent {window = w}) = withDisplay $ \dpy -> do
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wa <- io $ getWindowAttributes dpy w
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@@ -204,7 +204,7 @@ handle e = trace (eventName e) -- ignoring
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-- | refresh. Refresh the currently focused window. Resizes to full
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-- screen and raises the window.
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refresh :: W ()
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refresh :: X ()
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refresh = do
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ws <- gets workspace
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whenJust (W.peek ws) $ \w ->
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@@ -215,18 +215,18 @@ refresh = do
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raiseWindow d w
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-- | hide. Hide a list of windows by moving them offscreen.
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hide :: Window -> W ()
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hide :: Window -> X ()
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hide w = withDisplay $ \d -> do
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sw <- gets screenWidth
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sh <- gets screenHeight
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io $! moveWindow d w (2*fromIntegral sw) (2*fromIntegral sh)
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-- | reveal. Expose a list of windows, moving them on screen
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reveal :: Window -> W ()
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reveal :: Window -> X ()
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reveal w = withDisplay $ \d -> io $! moveWindow d w 0 0
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-- | windows. Modify the current window list with a pure function, and refresh
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windows :: (WorkSpace -> WorkSpace) -> W ()
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windows :: (WorkSpace -> WorkSpace) -> X ()
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windows f = do
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modify $ \s -> s { workspace = f (workspace s) }
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refresh
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@@ -241,7 +241,7 @@ windows f = do
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--
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-- When we start to manage a window, it gains focus.
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--
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manage :: Window -> W ()
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manage :: Window -> X ()
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manage w = do
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trace ("Managing window: 0x" ++ showHex w (", " ++ show w))
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withDisplay $ \d -> io $ do
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@@ -252,7 +252,7 @@ manage w = do
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-- | unmanage. A window no longer exists, remove it from the window
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-- list, on whatever workspace it is.
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unmanage :: Window -> W ()
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unmanage :: Window -> X ()
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unmanage w = do
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ws <- gets workspace
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when (W.member w ws) $ do
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@@ -261,11 +261,11 @@ unmanage w = do
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-- | raise. focus to window at offset 'n' in list.
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-- The currently focused window is always the head of the list
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raise :: Ordering -> W ()
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raise :: Ordering -> X ()
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raise = windows . W.rotate
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-- | Kill the currently focused client
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kill :: W ()
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kill :: X ()
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kill = withDisplay $ \d -> do
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ws <- gets workspace
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whenJust (W.peek ws) $ \w -> do
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@@ -273,7 +273,7 @@ kill = withDisplay $ \d -> do
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io (killClient d w) >> return ()
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-- | tag. Move a window to a new workspace
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tag :: Int -> W ()
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tag :: Int -> X ()
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tag o = do
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ws <- gets workspace
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let m = W.current ws
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@@ -284,7 +284,7 @@ tag o = do
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where n = o-1
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-- | view. Change the current workspace to workspce at offset 'n-1'.
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view :: Int -> W ()
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view :: Int -> X ()
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view o = do
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ws <- gets workspace
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let m = W.current ws
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@@ -1,6 +1,6 @@
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-----------------------------------------------------------------------------
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-- |
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-- Module : WMonad.hs
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-- Module : XMonad.hs
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-- Copyright : (c) Spencer Janssen 2007
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-- License : BSD3-style (see LICENSE)
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--
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@@ -10,12 +10,12 @@
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--
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-----------------------------------------------------------------------------
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--
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-- The W monad, a state monad transformer over IO, for the window
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-- The X monad, a state monad transformer over IO, for the window
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-- manager state, and support routines.
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--
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module WMonad (
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W, WorkSpace, WState(..),runW, withDisplay, io, spawn, trace, whenJust
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module XMonad (
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X, WorkSpace, XState(..),runX, withDisplay, io, spawn, trace, whenJust
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) where
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import StackSet (StackSet)
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@@ -25,9 +25,9 @@ import System.IO
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import System.Process (runCommand)
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import Graphics.X11.Xlib (Display,Window)
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-- | WState, the window manager state.
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-- | XState, the window manager state.
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-- Just the display, width, height and a window list
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data WState = WState
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data XState = XState
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{ display :: Display
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, screenWidth :: {-# UNPACK #-} !Int
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, screenHeight :: {-# UNPACK #-} !Int
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@@ -36,36 +36,36 @@ data WState = WState
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type WorkSpace = StackSet Window
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-- | The W monad, a StateT transformer over IO encapuslating the window
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-- | The X monad, a StateT transformer over IO encapuslating the window
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-- manager state
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newtype W a = W (StateT WState IO a)
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deriving (Functor, Monad, MonadIO, MonadState WState)
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newtype X a = X (StateT XState IO a)
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deriving (Functor, Monad, MonadIO, MonadState XState)
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-- | Run the W monad, given a chunk of W monad code, and an initial state
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-- | Run the X monad, given a chunk of X monad code, and an initial state
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-- Return the result, and final state
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runW :: WState -> W a -> IO ()
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runW st (W a) = runStateT a st >> return ()
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runX :: XState -> X a -> IO ()
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runX st (X a) = runStateT a st >> return ()
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-- | Run a monad action with the current display settings
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withDisplay :: (Display -> W ()) -> W ()
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withDisplay :: (Display -> X ()) -> X ()
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withDisplay f = gets display >>= f
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------------------------------------------------------------------------
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-- | Lift an IO action into the W monad
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io :: IO a -> W a
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-- | Lift an IO action into the X monad
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io :: IO a -> X a
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io = liftIO
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{-# INLINE io #-}
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-- | spawn. Launch an external application
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spawn :: String -> W ()
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spawn :: String -> X ()
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spawn x = io (runCommand x) >> return ()
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-- | Run a side effecting action with the current workspace. Like 'when' but
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whenJust :: Maybe a -> (a -> W ()) -> W ()
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whenJust :: Maybe a -> (a -> X ()) -> X ()
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whenJust mg f = maybe (return ()) f mg
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-- | A 'trace' for the W monad. Logs a string to stderr. The result may
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-- | A 'trace' for the X monad. Logs a string to stderr. The result may
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-- be found in your .xsession-errors file
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trace :: String -> W ()
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trace :: String -> X ()
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trace msg = io $! do hPutStrLn stderr msg; hFlush stderr
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