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52 lines
2 KiB
Haskell
52 lines
2 KiB
Haskell
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import Graphics.X11.Xlib
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import Graphics.X11.Xlib.Extras
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import System.Environment
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import System.IO
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import Data.Char
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main :: IO ()
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main = parse True "XMONAD_COMMAND" =<< getArgs
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parse :: Bool -> String -> [String] -> IO ()
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parse input addr args = case args of
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["--"] | input -> repl addr
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| otherwise -> return ()
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("--":xs) -> sendAll addr xs
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("-a":a:xs) -> parse input a xs
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("-h":_) -> showHelp
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("--help":_) -> showHelp
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("-?":_) -> showHelp
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(a@('-':_):_) -> hPutStrLn stderr ("Unknown option " ++ a)
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(x:xs) -> sendCommand addr x >> parse False addr xs
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[] | input -> repl addr
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| otherwise -> return ()
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repl :: String -> IO ()
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repl addr = do e <- isEOF
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case e of
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True -> return ()
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False -> do l <- getLine
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sendCommand addr l
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repl addr
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sendAll :: String -> [String] -> IO ()
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sendAll addr ss = foldr (\a b -> sendCommand addr a >> b) (return ()) ss
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sendCommand :: String -> String -> IO ()
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sendCommand addr s = do
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d <- openDisplay ""
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rw <- rootWindow d $ defaultScreen d
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a <- internAtom d addr False
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m <- internAtom d s False
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allocaXEvent $ \e -> do
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setEventType e clientMessage
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setClientMessageEvent e rw a 32 m currentTime
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sendEvent d rw False structureNotifyMask e
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sync d False
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showHelp :: IO ()
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showHelp = do pn <- getProgName
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putStrLn ("Send commands to a running instance of xmonad. xmonad.hs must be configured with XMonad.Hooks.ServerMode to work.\n-a atomname can be used at any point in the command line arguments to change which atom it is sending on.\nIf sent with no arguments or only -a atom arguments, it will read commands from stdin.\nEx:\n" ++ pn ++ " cmd1 cmd2\n" ++ pn ++ " -a XMONAD_COMMAND cmd1 cmd2 cmd3 -a XMONAD_PRINT hello world\n" ++ pn ++ " -a XMONAD_PRINT # will read data from stdin.\nThe atom defaults to XMONAD_COMMAND.")
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