This commit is contained in:
Don Stewart
2007-03-10 07:01:52 +00:00
parent b5ab851d2b
commit 5ddd9351dc
2 changed files with 38 additions and 38 deletions

38
Main.hs
View File

@@ -26,7 +26,7 @@ import Graphics.X11.Xlib.Extras
import Numeric import Numeric
import Control.Monad.State import Control.Monad.State
import WMonad import XMonad
import qualified StackSet as W import qualified StackSet as W
-- --
@@ -38,7 +38,7 @@ workspaces = 9
-- --
-- The keys list -- The keys list
-- --
keys :: M.Map (KeyMask, KeySym) (W ()) keys :: M.Map (KeyMask, KeySym) (X ())
keys = M.fromList $ keys = M.fromList $
[ ((mod1Mask .|. shiftMask, xK_Return), spawn "xterm") [ ((mod1Mask .|. shiftMask, xK_Return), spawn "xterm")
, ((mod1Mask, xK_p ), spawn "exe=`dmenu_path | dmenu` && exec $exe") , ((mod1Mask, xK_p ), spawn "exe=`dmenu_path | dmenu` && exec $exe")
@@ -61,7 +61,7 @@ main :: IO ()
main = do main = do
dpy <- openDisplay "" dpy <- openDisplay ""
let dflt = defaultScreen dpy let dflt = defaultScreen dpy
st = WState st = XState
{ display = dpy { display = dpy
, screenWidth = displayWidth dpy dflt , screenWidth = displayWidth dpy dflt
, screenHeight = displayHeight dpy dflt , screenHeight = displayHeight dpy dflt
@@ -80,7 +80,7 @@ main = do
ws <- scan dpy rootw ws <- scan dpy rootw
allocaXEvent $ \e -> allocaXEvent $ \e ->
runW st $ do runX st $ do
mapM_ manage ws mapM_ manage ws
forever $ handle =<< xevent dpy e forever $ handle =<< xevent dpy e
where where
@@ -89,7 +89,7 @@ main = do
forever a = a >> forever a forever a = a >> forever a
-- --------------------------------------------------------------------- -- ---------------------------------------------------------------------
-- IO stuff. Doesn't require any W state -- IO stuff. Doesn't require any X state
-- Most of these things run only on startup (bar grabkeys) -- Most of these things run only on startup (bar grabkeys)
-- | scan for any initial windows to manage -- | scan for any initial windows to manage
@@ -123,18 +123,18 @@ grabKeys dpy rootw = do
-- [Expose] = expose, -- [Expose] = expose,
-- [PropertyNotify] = propertynotify, -- [PropertyNotify] = propertynotify,
-- --
-- Todo: seperate IO from W monad stuff. We want to be able to test the -- Todo: seperate IO from X monad stuff. We want to be able to test the
-- handler, and client functions, with dummy X interface ops, in QuickCheck -- handler, and client functions, with dummy X interface ops, in QuickCheck
-- --
-- Will require an abstract interpreter from Event -> W Action, which -- Will require an abstract interpreter from Event -> X Action, which
-- modifies the internal W state, and then produces an IO action to -- modifies the internal X state, and then produces an IO action to
-- evaluate. -- evaluate.
-- --
-- XCreateWindowEvent(3X11) -- XCreateWindowEvent(3X11)
-- Window manager clients normally should ignore this window if the -- Window manager clients normally should ignore this window if the
-- override_redirect member is True. -- override_redirect member is True.
-- --
handle :: Event -> W () handle :: Event -> X ()
handle (MapRequestEvent {window = w}) = withDisplay $ \dpy -> do handle (MapRequestEvent {window = w}) = withDisplay $ \dpy -> do
wa <- io $ getWindowAttributes dpy w wa <- io $ getWindowAttributes dpy w
@@ -204,7 +204,7 @@ handle e = trace (eventName e) -- ignoring
-- | refresh. Refresh the currently focused window. Resizes to full -- | refresh. Refresh the currently focused window. Resizes to full
-- screen and raises the window. -- screen and raises the window.
refresh :: W () refresh :: X ()
refresh = do refresh = do
ws <- gets workspace ws <- gets workspace
whenJust (W.peek ws) $ \w -> whenJust (W.peek ws) $ \w ->
@@ -215,18 +215,18 @@ refresh = do
raiseWindow d w raiseWindow d w
-- | hide. Hide a list of windows by moving them offscreen. -- | hide. Hide a list of windows by moving them offscreen.
hide :: Window -> W () hide :: Window -> X ()
hide w = withDisplay $ \d -> do hide w = withDisplay $ \d -> do
sw <- gets screenWidth sw <- gets screenWidth
sh <- gets screenHeight sh <- gets screenHeight
io $! moveWindow d w (2*fromIntegral sw) (2*fromIntegral sh) io $! moveWindow d w (2*fromIntegral sw) (2*fromIntegral sh)
-- | reveal. Expose a list of windows, moving them on screen -- | reveal. Expose a list of windows, moving them on screen
reveal :: Window -> W () reveal :: Window -> X ()
reveal w = withDisplay $ \d -> io $! moveWindow d w 0 0 reveal w = withDisplay $ \d -> io $! moveWindow d w 0 0
-- | windows. Modify the current window list with a pure function, and refresh -- | windows. Modify the current window list with a pure function, and refresh
windows :: (WorkSpace -> WorkSpace) -> W () windows :: (WorkSpace -> WorkSpace) -> X ()
windows f = do windows f = do
modify $ \s -> s { workspace = f (workspace s) } modify $ \s -> s { workspace = f (workspace s) }
refresh refresh
@@ -241,7 +241,7 @@ windows f = do
-- --
-- When we start to manage a window, it gains focus. -- When we start to manage a window, it gains focus.
-- --
manage :: Window -> W () manage :: Window -> X ()
manage w = do manage w = do
trace ("Managing window: 0x" ++ showHex w (", " ++ show w)) trace ("Managing window: 0x" ++ showHex w (", " ++ show w))
withDisplay $ \d -> io $ do withDisplay $ \d -> io $ do
@@ -252,7 +252,7 @@ manage w = do
-- | unmanage. A window no longer exists, remove it from the window -- | unmanage. A window no longer exists, remove it from the window
-- list, on whatever workspace it is. -- list, on whatever workspace it is.
unmanage :: Window -> W () unmanage :: Window -> X ()
unmanage w = do unmanage w = do
ws <- gets workspace ws <- gets workspace
when (W.member w ws) $ do when (W.member w ws) $ do
@@ -261,11 +261,11 @@ unmanage w = do
-- | raise. focus to window at offset 'n' in list. -- | raise. focus to window at offset 'n' in list.
-- The currently focused window is always the head of the list -- The currently focused window is always the head of the list
raise :: Ordering -> W () raise :: Ordering -> X ()
raise = windows . W.rotate raise = windows . W.rotate
-- | Kill the currently focused client -- | Kill the currently focused client
kill :: W () kill :: X ()
kill = withDisplay $ \d -> do kill = withDisplay $ \d -> do
ws <- gets workspace ws <- gets workspace
whenJust (W.peek ws) $ \w -> do whenJust (W.peek ws) $ \w -> do
@@ -273,7 +273,7 @@ kill = withDisplay $ \d -> do
io (killClient d w) >> return () io (killClient d w) >> return ()
-- | tag. Move a window to a new workspace -- | tag. Move a window to a new workspace
tag :: Int -> W () tag :: Int -> X ()
tag o = do tag o = do
ws <- gets workspace ws <- gets workspace
let m = W.current ws let m = W.current ws
@@ -284,7 +284,7 @@ tag o = do
where n = o-1 where n = o-1
-- | view. Change the current workspace to workspce at offset 'n-1'. -- | view. Change the current workspace to workspce at offset 'n-1'.
view :: Int -> W () view :: Int -> X ()
view o = do view o = do
ws <- gets workspace ws <- gets workspace
let m = W.current ws let m = W.current ws

View File

@@ -1,6 +1,6 @@
----------------------------------------------------------------------------- -----------------------------------------------------------------------------
-- | -- |
-- Module : WMonad.hs -- Module : XMonad.hs
-- Copyright : (c) Spencer Janssen 2007 -- Copyright : (c) Spencer Janssen 2007
-- License : BSD3-style (see LICENSE) -- License : BSD3-style (see LICENSE)
-- --
@@ -10,12 +10,12 @@
-- --
----------------------------------------------------------------------------- -----------------------------------------------------------------------------
-- --
-- The W monad, a state monad transformer over IO, for the window -- The X monad, a state monad transformer over IO, for the window
-- manager state, and support routines. -- manager state, and support routines.
-- --
module WMonad ( module XMonad (
W, WorkSpace, WState(..),runW, withDisplay, io, spawn, trace, whenJust X, WorkSpace, XState(..),runX, withDisplay, io, spawn, trace, whenJust
) where ) where
import StackSet (StackSet) import StackSet (StackSet)
@@ -25,9 +25,9 @@ import System.IO
import System.Process (runCommand) import System.Process (runCommand)
import Graphics.X11.Xlib (Display,Window) import Graphics.X11.Xlib (Display,Window)
-- | WState, the window manager state. -- | XState, the window manager state.
-- Just the display, width, height and a window list -- Just the display, width, height and a window list
data WState = WState data XState = XState
{ display :: Display { display :: Display
, screenWidth :: {-# UNPACK #-} !Int , screenWidth :: {-# UNPACK #-} !Int
, screenHeight :: {-# UNPACK #-} !Int , screenHeight :: {-# UNPACK #-} !Int
@@ -36,36 +36,36 @@ data WState = WState
type WorkSpace = StackSet Window type WorkSpace = StackSet Window
-- | The W monad, a StateT transformer over IO encapuslating the window -- | The X monad, a StateT transformer over IO encapuslating the window
-- manager state -- manager state
newtype W a = W (StateT WState IO a) newtype X a = X (StateT XState IO a)
deriving (Functor, Monad, MonadIO, MonadState WState) deriving (Functor, Monad, MonadIO, MonadState XState)
-- | Run the W monad, given a chunk of W monad code, and an initial state -- | Run the X monad, given a chunk of X monad code, and an initial state
-- Return the result, and final state -- Return the result, and final state
runW :: WState -> W a -> IO () runX :: XState -> X a -> IO ()
runW st (W a) = runStateT a st >> return () runX st (X a) = runStateT a st >> return ()
-- | Run a monad action with the current display settings -- | Run a monad action with the current display settings
withDisplay :: (Display -> W ()) -> W () withDisplay :: (Display -> X ()) -> X ()
withDisplay f = gets display >>= f withDisplay f = gets display >>= f
------------------------------------------------------------------------ ------------------------------------------------------------------------
-- | Lift an IO action into the W monad -- | Lift an IO action into the X monad
io :: IO a -> W a io :: IO a -> X a
io = liftIO io = liftIO
{-# INLINE io #-} {-# INLINE io #-}
-- | spawn. Launch an external application -- | spawn. Launch an external application
spawn :: String -> W () spawn :: String -> X ()
spawn x = io (runCommand x) >> return () spawn x = io (runCommand x) >> return ()
-- | Run a side effecting action with the current workspace. Like 'when' but -- | Run a side effecting action with the current workspace. Like 'when' but
whenJust :: Maybe a -> (a -> W ()) -> W () whenJust :: Maybe a -> (a -> X ()) -> X ()
whenJust mg f = maybe (return ()) f mg whenJust mg f = maybe (return ()) f mg
-- | A 'trace' for the W monad. Logs a string to stderr. The result may -- | A 'trace' for the X monad. Logs a string to stderr. The result may
-- be found in your .xsession-errors file -- be found in your .xsession-errors file
trace :: String -> W () trace :: String -> X ()
trace msg = io $! do hPutStrLn stderr msg; hFlush stderr trace msg = io $! do hPutStrLn stderr msg; hFlush stderr