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|
-----------------------------------------------------------------------------
-- |
-- Module : XMonad.Hooks.EwmhDesktops
-- Copyright : (c) Joachim Breitner <mail@joachim-breitner.de>
-- License : BSD
--
-- Maintainer : Joachim Breitner <mail@joachim-breitner.de>
-- Stability : unstable
-- Portability : unportable
--
-- Makes xmonad use the EWMH hints to tell panel applications about its
-- workspaces and the windows therein.
-----------------------------------------------------------------------------
module XMonad.Hooks.EwmhDesktops (
-- * Usage
-- $usage
ewmhDesktopsLogHook
) where
import Data.List
import Data.Maybe
import XMonad
import Control.Monad
import qualified XMonad.StackSet as W
import XMonad.Hooks.SetWMName
import XMonad.Util.WorkspaceCompare
-- $usage
-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:
--
-- > import XMonad
-- > import XMonad.Hooks.EwmhDesktops
-- >
-- > myLogHook :: X ()
-- > myLogHook = do ewmhDesktopsLogHook
-- > return ()
-- >
-- > main = xmonad defaultConfig { logHook = myLogHook }
--
-- For more detailed instructions on editing the layoutHook see:
--
-- "XMonad.Doc.Extending#The_log_hook_and_external_status_bars"
-- |
-- Notifies pagers and window lists, such as those in the gnome-panel
-- of the current state of workspaces and windows.
ewmhDesktopsLogHook :: X ()
ewmhDesktopsLogHook = withWindowSet $ \s -> do
sort' <- getSortByTag
let ws = sort' $ W.workspaces s
let wins = W.allWindows s
setSupported
-- Number of Workspaces
setNumberOfDesktops (length ws)
-- Names thereof
setDesktopNames (map W.tag ws)
-- Current desktop
let curr = fromJust $ elemIndex (W.tag (W.workspace (W.current s))) $ map W.tag ws
setCurrentDesktop curr
setClientList wins
-- Per window Desktop
-- To make gnome-panel accept our xinerama stuff, we display
-- all visible windows on the current desktop.
forM_ (W.current s : W.visible s) $ \x ->
forM_ (W.integrate' (W.stack (W.workspace x))) $ \win -> do
setWindowDesktop win curr
forM_ (W.hidden s) $ \w ->
let wn = fromJust $ elemIndex (W.tag w) (map W.tag ws) in
forM_ (W.integrate' (W.stack w)) $ \win -> do
setWindowDesktop win wn
setActiveWindow
return ()
setNumberOfDesktops :: (Integral a) => a -> X ()
setNumberOfDesktops n = withDisplay $ \dpy -> do
a <- getAtom "_NET_NUMBER_OF_DESKTOPS"
c <- getAtom "CARDINAL"
r <- asks theRoot
io $ changeProperty32 dpy r a c propModeReplace [fromIntegral n]
setCurrentDesktop :: (Integral a) => a -> X ()
setCurrentDesktop i = withDisplay $ \dpy -> do
a <- getAtom "_NET_CURRENT_DESKTOP"
c <- getAtom "CARDINAL"
r <- asks theRoot
io $ changeProperty32 dpy r a c propModeReplace [fromIntegral i]
setDesktopNames :: [String] -> X ()
setDesktopNames names = withDisplay $ \dpy -> do
-- Names thereof
r <- asks theRoot
a <- getAtom "_NET_DESKTOP_NAMES"
c <- getAtom "UTF8_STRING"
let names' = map (fromIntegral.fromEnum) $
concatMap (++['\0']) names
io $ changeProperty8 dpy r a c propModeReplace names'
setClientList :: [Window] -> X ()
setClientList wins = withDisplay $ \dpy -> do
-- (What order do we really need? Something about age and stacking)
r <- asks theRoot
c <- getAtom "WINDOW"
a <- getAtom "_NET_CLIENT_LIST"
io $ changeProperty32 dpy r a c propModeReplace (fmap fromIntegral wins)
a' <- getAtom "_NET_CLIENT_LIST_STACKING"
io $ changeProperty32 dpy r a' c propModeReplace (fmap fromIntegral wins)
setWindowDesktop :: (Integral a) => Window -> a -> X ()
setWindowDesktop win i = withDisplay $ \dpy -> do
a <- getAtom "_NET_WM_DESKTOP"
c <- getAtom "CARDINAL"
io $ changeProperty32 dpy win a c propModeReplace [fromIntegral i]
setSupported :: X ()
setSupported = withDisplay $ \dpy -> do
r <- asks theRoot
a <- getAtom "_NET_SUPPORTED"
c <- getAtom "ATOM"
supp <- mapM getAtom ["_NET_WM_STATE_HIDDEN"
,"_NET_NUMBER_OF_DESKTOPS"
,"_NET_CLIENT_LIST"
,"_NET_CURRENT_DESKTOP"
,"_NET_DESKTOP_NAMES"
,"_NET_ACTIVE_WINDOW"
,"_NET_WM_DESKTOP"
,"_NET_WM_STRUT"
]
io $ changeProperty32 dpy r a c propModeReplace (fmap fromIntegral supp)
setWMName "xmonad"
setActiveWindow :: X ()
setActiveWindow = withWindowSet $ \s -> withDisplay $ \dpy -> do
let w = fromMaybe 0 (W.peek s)
r <- asks theRoot
a <- getAtom "_NET_ACTIVE_WINDOW"
c <- getAtom "WINDOW"
io $ changeProperty32 dpy r a c propModeReplace [fromIntegral w]
|
