From 4866f2e367dfcf22a9591231ba40948826a1b438 Mon Sep 17 00:00:00 2001
From: Spencer Janssen <sjanssen@cse.unl.edu>
Date: Thu, 1 Nov 2007 21:10:59 +0100
Subject: Hierarchify

darcs-hash:20071101201059-a5988-fc1f1262bec1b69e13ba18ae7cefeafc8c4471d4.gz
---
 XMonad/Hooks/EwmhDesktops | 130 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 XMonad/Hooks/EwmhDesktops

(limited to 'XMonad/Hooks/EwmhDesktops')

diff --git a/XMonad/Hooks/EwmhDesktops b/XMonad/Hooks/EwmhDesktops
new file mode 100644
index 0000000..4e2d754
--- /dev/null
+++ b/XMonad/Hooks/EwmhDesktops
@@ -0,0 +1,130 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module       : XMonadContrib.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 XMonadContrib.EwmhDesktops (
+    -- * Usage
+    -- $usage
+    ewmhDesktopsLogHook
+    ) where
+
+import Data.List    (elemIndex, sortBy)
+import Data.Ord     (comparing)
+import Data.Maybe   (fromMaybe)
+
+import Control.Monad.Reader
+import XMonad
+import qualified XMonad.StackSet as W
+import Graphics.X11.Xlib
+import Graphics.X11.Xlib.Extras
+
+import XMonadContrib.SetWMName
+
+-- $usage
+-- Add the imports to your configuration file and add the logHook:
+--
+-- > import XMonadContrib.EwmhDesktops
+--
+-- > logHook :: X()
+-- > logHook = do ewmhDesktopsLogHook
+-- >              return ()
+
+-- %import XMonadContrib.EwmhDesktops
+-- %def -- comment out default logHook definition above if you uncomment this:
+-- %def logHook = ewmhDesktopsLogHook
+
+
+-- |
+-- 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
+    -- Bad hack because xmonad forgets the original order of things, it seems
+    -- see http://code.google.com/p/xmonad/issues/detail?id=53
+    let ws = sortBy (comparing W.tag) $ W.workspaces s
+    let wins = W.allWindows s
+
+    setSupported
+
+    -- Number of Workspaces
+    setNumberOfDesktops (length ws)
+
+    -- Names thereof
+    setDesktopNames (map W.tag ws)
+
+    -- Current desktop
+    fromMaybe (return ()) $ do
+        n <- W.lookupWorkspace 0 s
+        i <- elemIndex n $ map W.tag ws
+        return $ setCurrentDesktop i
+
+    setClientList wins
+
+    -- Per window Desktop
+    forM (zip ws [(0::Int)..]) $ \(w, wn) ->
+        forM (W.integrate' (W.stack w)) $ \win -> do
+            setWindowDesktop win wn
+
+    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 (("Workspace "++) . (++['\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"]
+    io $ changeProperty32 dpy r a c propModeReplace (fmap fromIntegral supp)
+
+    setWMName "xmonad"
+
+
-- 
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