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authortv <tv@shackspace.de>2015-10-25 02:06:37 +0100
committertv <tv@shackspace.de>2015-10-25 02:06:37 +0100
commit2cf33f24be9de76d0a2d5818818b9826bf05a996 (patch)
tree2d85721f1e6f5254f05ab7dd6e77f90f2e4b2061 /tv/2configs/xserver/xmonad
parenta4d7f920bf49de6237191558d02b0f58ed307fd4 (diff)
tv xmonad service: save state on shutdown
Diffstat (limited to 'tv/2configs/xserver/xmonad')
-rw-r--r--tv/2configs/xserver/xmonad/Main.hs18
-rw-r--r--tv/2configs/xserver/xmonad/Util/Shutdown.hs53
2 files changed, 64 insertions, 7 deletions
diff --git a/tv/2configs/xserver/xmonad/Main.hs b/tv/2configs/xserver/xmonad/Main.hs
index cca2902a0..6e0be0579 100644
--- a/tv/2configs/xserver/xmonad/Main.hs
+++ b/tv/2configs/xserver/xmonad/Main.hs
@@ -1,9 +1,11 @@
{-# LANGUAGE DeriveDataTypeable #-} -- for XS
+{-# LANGUAGE LambdaCase #-}
module Main where
import XMonad
+import System.Environment (getArgs)
import XMonad.Prompt (defaultXPConfig)
import XMonad.Actions.DynamicWorkspaces ( addWorkspacePrompt, renameWorkspace
, removeEmptyWorkspace)
@@ -30,6 +32,7 @@ import XMonad.Layout.PerWorkspace (onWorkspace)
import Util.Pager
import Util.Rhombus
import Util.Debunk
+import Util.Shutdown
--data MyState = MyState deriving Typeable
@@ -48,11 +51,12 @@ myFont :: String
myFont = "-schumacher-*-*-*-*-*-*-*-*-*-*-*-iso10646-*"
main :: IO ()
-main = do
- -- TODO exec (shlex "xrdb -merge" ++ [HOME ++ "/.Xresources"])
- -- TODO exec (shlex "xsetroot -solid '#1c1c1c'")
- --spawn "xrdb -merge \"$HOME/.Xresources\""
- --spawn "xsetroot -solid '#1c1c1c'"
+main = getArgs >>= \case
+ ["--shutdown"] -> sendShutdownEvent
+ _ -> mainNoArgs
+
+mainNoArgs :: IO ()
+mainNoArgs = do
xmonad
-- $ withUrgencyHookC dzenUrgencyHook { args = ["-bg", "magenta", "-fg", "magenta", "-h", "2"], duration = 500000 }
-- urgencyConfig { remindWhen = Every 1 }
@@ -80,6 +84,7 @@ main = do
, startupHook = spawn "echo emit XMonadStartup"
, normalBorderColor = "#1c1c1c"
, focusedBorderColor = "#f000b0"
+ , handleEventHook = handleShutdownEvent
}
where
myLayout =
@@ -118,8 +123,7 @@ spawnTermAt _ = spawn myTerm
myKeys :: XConfig Layout -> Map (KeyMask, KeySym) (X ())
myKeys conf = Map.fromList $
- [ ((_4C , xK_Delete ), spawn "make -C $HOME/.xmonad reload")
- , ((_4 , xK_Escape ), spawn "/var/setuid-wrappers/slock")
+ [ ((_4 , xK_Escape ), spawn "/var/setuid-wrappers/slock")
, ((_4S , xK_c ), kill)
, ((_4 , xK_x ), chooseAction spawnTermAt)
diff --git a/tv/2configs/xserver/xmonad/Util/Shutdown.hs b/tv/2configs/xserver/xmonad/Util/Shutdown.hs
new file mode 100644
index 000000000..c5a3edb80
--- /dev/null
+++ b/tv/2configs/xserver/xmonad/Util/Shutdown.hs
@@ -0,0 +1,53 @@
+{-# LANGUAGE LambdaCase #-}
+module Util.Shutdown
+ ( sendShutdownEvent
+ , handleShutdownEvent
+ , shutdown
+ )
+ where
+
+import Control.Monad
+import Data.Monoid
+import Data.Maybe (catMaybes)
+import qualified Data.Map as Map
+import System.Environment (getEnv)
+import System.Exit (exitSuccess)
+import XMonad
+import qualified XMonad.StackSet as W
+
+sendShutdownEvent :: IO ()
+sendShutdownEvent = do
+ dpy <- openDisplay ""
+ rw <- rootWindow dpy $ defaultScreen dpy
+ a <- internAtom dpy "XMONAD_SHUTDOWN" False
+ allocaXEvent $ \e -> do
+ setEventType e clientMessage
+ setClientMessageEvent e rw a 32 0 currentTime
+ sendEvent dpy rw False structureNotifyMask e
+ sync dpy False
+
+handleShutdownEvent :: Event -> X All
+handleShutdownEvent = \case
+ ClientMessageEvent { ev_message_type = mt } -> do
+ c <- (mt ==) <$> getAtom "XMONAD_SHUTDOWN"
+ when c shutdown
+ return (All c)
+ _ ->
+ return (All True)
+
+shutdown :: X ()
+shutdown = do
+ broadcastMessage ReleaseResources
+ io . flush =<< asks display
+ let wsData = show . W.mapLayout show . windowset
+ maybeShow (t, Right (PersistentExtension ext)) = Just (t, show ext)
+ maybeShow (t, Left str) = Just (t, str)
+ maybeShow _ = Nothing
+ extState =
+ return . show . catMaybes . map maybeShow . Map.toList . extensibleState
+ s <- gets (\s -> (wsData s : extState s))
+ _ <- io $ do
+ path <- getEnv "XMONAD_STATE"
+ writeFile path (concatMap (++"\n") s)
+ exitSuccess
+ return ()