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 Control.Monad.State
import WMonad
import XMonad
import qualified StackSet as W
--
@@ -38,7 +38,7 @@ workspaces = 9
--
-- The keys list
--
keys :: M.Map (KeyMask, KeySym) (W ())
keys :: M.Map (KeyMask, KeySym) (X ())
keys = M.fromList $
[ ((mod1Mask .|. shiftMask, xK_Return), spawn "xterm")
, ((mod1Mask, xK_p ), spawn "exe=`dmenu_path | dmenu` && exec $exe")
@@ -61,7 +61,7 @@ main :: IO ()
main = do
dpy <- openDisplay ""
let dflt = defaultScreen dpy
st = WState
st = XState
{ display = dpy
, screenWidth = displayWidth dpy dflt
, screenHeight = displayHeight dpy dflt
@@ -80,7 +80,7 @@ main = do
ws <- scan dpy rootw
allocaXEvent $ \e ->
runW st $ do
runX st $ do
mapM_ manage ws
forever $ handle =<< xevent dpy e
where
@@ -89,7 +89,7 @@ main = do
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)
-- | scan for any initial windows to manage
@@ -123,18 +123,18 @@ grabKeys dpy rootw = do
-- [Expose] = expose,
-- [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
--
-- Will require an abstract interpreter from Event -> W Action, which
-- modifies the internal W state, and then produces an IO action to
-- Will require an abstract interpreter from Event -> X Action, which
-- modifies the internal X state, and then produces an IO action to
-- evaluate.
--
-- XCreateWindowEvent(3X11)
-- Window manager clients normally should ignore this window if the
-- override_redirect member is True.
--
handle :: Event -> W ()
handle :: Event -> X ()
handle (MapRequestEvent {window = w}) = withDisplay $ \dpy -> do
wa <- io $ getWindowAttributes dpy w
@@ -204,7 +204,7 @@ handle e = trace (eventName e) -- ignoring
-- | refresh. Refresh the currently focused window. Resizes to full
-- screen and raises the window.
refresh :: W ()
refresh :: X ()
refresh = do
ws <- gets workspace
whenJust (W.peek ws) $ \w ->
@@ -215,18 +215,18 @@ refresh = do
raiseWindow d w
-- | hide. Hide a list of windows by moving them offscreen.
hide :: Window -> W ()
hide :: Window -> X ()
hide w = withDisplay $ \d -> do
sw <- gets screenWidth
sh <- gets screenHeight
io $! moveWindow d w (2*fromIntegral sw) (2*fromIntegral sh)
-- | 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
-- | windows. Modify the current window list with a pure function, and refresh
windows :: (WorkSpace -> WorkSpace) -> W ()
windows :: (WorkSpace -> WorkSpace) -> X ()
windows f = do
modify $ \s -> s { workspace = f (workspace s) }
refresh
@@ -241,7 +241,7 @@ windows f = do
--
-- When we start to manage a window, it gains focus.
--
manage :: Window -> W ()
manage :: Window -> X ()
manage w = do
trace ("Managing window: 0x" ++ showHex w (", " ++ show w))
withDisplay $ \d -> io $ do
@@ -252,7 +252,7 @@ manage w = do
-- | unmanage. A window no longer exists, remove it from the window
-- list, on whatever workspace it is.
unmanage :: Window -> W ()
unmanage :: Window -> X ()
unmanage w = do
ws <- gets workspace
when (W.member w ws) $ do
@@ -261,11 +261,11 @@ unmanage w = do
-- | raise. focus to window at offset 'n' in list.
-- The currently focused window is always the head of the list
raise :: Ordering -> W ()
raise :: Ordering -> X ()
raise = windows . W.rotate
-- | Kill the currently focused client
kill :: W ()
kill :: X ()
kill = withDisplay $ \d -> do
ws <- gets workspace
whenJust (W.peek ws) $ \w -> do
@@ -273,7 +273,7 @@ kill = withDisplay $ \d -> do
io (killClient d w) >> return ()
-- | tag. Move a window to a new workspace
tag :: Int -> W ()
tag :: Int -> X ()
tag o = do
ws <- gets workspace
let m = W.current ws
@@ -284,7 +284,7 @@ tag o = do
where n = o-1
-- | view. Change the current workspace to workspce at offset 'n-1'.
view :: Int -> W ()
view :: Int -> X ()
view o = do
ws <- gets workspace
let m = W.current ws

View File

@@ -1,6 +1,6 @@
-----------------------------------------------------------------------------
-- |
-- Module : WMonad.hs
-- Module : XMonad.hs
-- Copyright : (c) Spencer Janssen 2007
-- 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.
--
module WMonad (
W, WorkSpace, WState(..),runW, withDisplay, io, spawn, trace, whenJust
module XMonad (
X, WorkSpace, XState(..),runX, withDisplay, io, spawn, trace, whenJust
) where
import StackSet (StackSet)
@@ -25,9 +25,9 @@ import System.IO
import System.Process (runCommand)
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
data WState = WState
data XState = XState
{ display :: Display
, screenWidth :: {-# UNPACK #-} !Int
, screenHeight :: {-# UNPACK #-} !Int
@@ -36,36 +36,36 @@ data WState = WState
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
newtype W a = W (StateT WState IO a)
deriving (Functor, Monad, MonadIO, MonadState WState)
newtype X a = X (StateT XState IO a)
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
runW :: WState -> W a -> IO ()
runW st (W a) = runStateT a st >> return ()
runX :: XState -> X a -> IO ()
runX st (X a) = runStateT a st >> return ()
-- | Run a monad action with the current display settings
withDisplay :: (Display -> W ()) -> W ()
withDisplay :: (Display -> X ()) -> X ()
withDisplay f = gets display >>= f
------------------------------------------------------------------------
-- | Lift an IO action into the W monad
io :: IO a -> W a
-- | Lift an IO action into the X monad
io :: IO a -> X a
io = liftIO
{-# INLINE io #-}
-- | spawn. Launch an external application
spawn :: String -> W ()
spawn :: String -> X ()
spawn x = io (runCommand x) >> return ()
-- | 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
-- | 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
trace :: String -> W ()
trace :: String -> X ()
trace msg = io $! do hPutStrLn stderr msg; hFlush stderr