From 1af4da53f7f3b0bc9f0c337113a90448f035a4b1 Mon Sep 17 00:00:00 2001 From: jao Date: Sat, 29 Jan 2022 02:23:50 +0000 Subject: App.EventLoop -> App.X11EventLoop --- src/Xmobar/App/EventLoop.hs | 226 -------------------------------------------- 1 file changed, 226 deletions(-) delete mode 100644 src/Xmobar/App/EventLoop.hs (limited to 'src/Xmobar/App/EventLoop.hs') diff --git a/src/Xmobar/App/EventLoop.hs b/src/Xmobar/App/EventLoop.hs deleted file mode 100644 index b1bd3ff..0000000 --- a/src/Xmobar/App/EventLoop.hs +++ /dev/null @@ -1,226 +0,0 @@ -{-# LANGUAGE CPP #-} - ------------------------------------------------------------------------------- --- | --- Module: Xmobar.App.EventLoop --- Copyright: (c) 2018, 2020, 2022 Jose Antonio Ortega Ruiz --- License: BSD3-style (see LICENSE) --- --- Maintainer: jao@gnu.org --- Stability: unstable --- Portability: portable --- Created: Sat Nov 24, 2018 19:40 --- --- --- Event loop --- ------------------------------------------------------------------------------- - -module Xmobar.App.EventLoop (startLoop) where - -import Prelude hiding (lookup) -import Graphics.X11.Xlib hiding (textExtents, textWidth) -import Graphics.X11.Xlib.Extras -import Graphics.X11.Xinerama -import Graphics.X11.Xrandr - -import Control.Arrow ((&&&)) -import Control.Monad.Reader -import Control.Concurrent -import Control.Concurrent.Async (Async) -import Control.Concurrent.STM -import Control.Exception (handle, SomeException(..)) -import Data.Bits -import Data.Map hiding (foldr, map, filter) -import Data.Maybe (fromJust, isJust) -import qualified Data.List.NonEmpty as NE - -import Xmobar.System.Signal -import Xmobar.Config.Types (persistent - , position - , iconRoot - , Config - , Align(..) - , XPosition(..)) - -import Xmobar.X11.Actions -import Xmobar.X11.Parsers -import Xmobar.X11.Window -import Xmobar.X11.Text -import Xmobar.X11.Draw -import Xmobar.X11.Bitmap as Bitmap -import Xmobar.X11.Types -import Xmobar.System.Utils (safeIndex) - -import Xmobar.App.CommandThreads (initLoop) - -#ifndef THREADED_RUNTIME -import Xmobar.X11.Events(nextEvent') -#endif - -#ifdef XFT -import Graphics.X11.Xft -#endif - -runX :: XConf -> X () -> IO () -runX xc f = runReaderT f xc - --- | Starts the main event loop and threads -startLoop :: XConf - -> TMVar SignalType - -> TMVar () - -> [[([Async ()], TVar String)]] - -> IO () -startLoop xcfg@(XConf _ _ w _ _ _ _) sig pauser vs = do -#ifdef XFT - xftInitFtLibrary -#endif - tv <- initLoop sig pauser vs -#ifdef THREADED_RUNTIME - _ <- forkOS (handle (handler "eventer") (eventer sig)) -#else - _ <- forkIO (handle (handler "eventer") (eventer sig)) -#endif - eventLoop tv xcfg [] sig - where - handler thing (SomeException e) = - void $ putStrLn ("Thread " ++ thing ++ " failed: " ++ show e) - -- Reacts on events from X - eventer signal = - allocaXEvent $ \e -> do - dpy <- openDisplay "" - xrrSelectInput dpy (defaultRootWindow dpy) rrScreenChangeNotifyMask - selectInput dpy w (exposureMask .|. structureNotifyMask .|. buttonPressMask) - - forever $ do -#ifdef THREADED_RUNTIME - nextEvent dpy e -#else - nextEvent' dpy e -#endif - ev <- getEvent e - case ev of - ConfigureEvent {} -> atomically $ putTMVar signal Reposition - ExposeEvent {} -> atomically $ putTMVar signal Wakeup - RRScreenChangeNotifyEvent {} -> atomically $ putTMVar signal Reposition - ButtonEvent {} -> atomically $ - putTMVar signal (Action (ev_button ev) (fi $ ev_x ev)) - _ -> return () - --- | Continuously wait for a signal from a thread or a interrupt handler -eventLoop :: TVar [String] - -> XConf - -> [([Action], Position, Position)] - -> TMVar SignalType - -> IO () -eventLoop tv xc@(XConf d r w fs vos is cfg) as signal = do - typ <- atomically $ takeTMVar signal - case typ of - Wakeup -> do - str <- updateString cfg tv - xc' <- updateCache d w is (iconRoot cfg) str >>= - \c -> return xc { iconS = c } - as' <- updateActions xc r str - runX xc' $ drawInWin r str - eventLoop tv xc' as' signal - - Reposition -> - reposWindow cfg - - ChangeScreen -> do - ncfg <- updateConfigPosition cfg - reposWindow ncfg - - Hide t -> hide (t*100*1000) - Reveal t -> reveal (t*100*1000) - Toggle t -> toggle t - - TogglePersistent -> eventLoop - tv xc { config = cfg { persistent = not $ persistent cfg } } as signal - - Action but x -> action but x - - where - isPersistent = not $ persistent cfg - - hide t - | t == 0 = - when isPersistent (hideWindow d w) >> eventLoop tv xc as signal - | otherwise = do - void $ forkIO - $ threadDelay t >> atomically (putTMVar signal $ Hide 0) - eventLoop tv xc as signal - - reveal t - | t == 0 = do - when isPersistent (showWindow r cfg d w) - eventLoop tv xc as signal - | otherwise = do - void $ forkIO - $ threadDelay t >> atomically (putTMVar signal $ Reveal 0) - eventLoop tv xc as signal - - toggle t = do - ismapped <- isMapped d w - atomically (putTMVar signal $ if ismapped then Hide t else Reveal t) - eventLoop tv xc as signal - - reposWindow rcfg = do - r' <- repositionWin d w (NE.head fs) rcfg - eventLoop tv (XConf d r' w fs vos is rcfg) as signal - - updateConfigPosition ocfg = - case position ocfg of - OnScreen n o -> do - srs <- getScreenInfo d - return (if n == length srs - then - (ocfg {position = OnScreen 1 o}) - else - (ocfg {position = OnScreen (n+1) o})) - o -> return (ocfg {position = OnScreen 1 o}) - - action button x = do - mapM_ runAction $ - filter (\(Spawn b _) -> button `elem` b) $ - concatMap (\(a,_,_) -> a) $ - filter (\(_, from, to) -> x >= from && x <= to) as - eventLoop tv xc as signal - -updateString :: Config - -> TVar [String] - -> IO [[(Widget, TextRenderInfo, Int, Maybe [Action])]] -updateString conf v = do - s <- readTVarIO v - let l:c:r:_ = s ++ repeat "" - liftIO $ mapM (parseString conf) [l, c, r] - -updateActions :: XConf - -> Rectangle - -> [[(Widget, TextRenderInfo, Int, Maybe [Action])]] - -> IO [([Action], Position, Position)] -updateActions conf (Rectangle _ _ wid _) ~[left,center,right] = do - let (d,fs) = (display &&& fontListS) conf - strLn :: [(Widget, TextRenderInfo, Int, Maybe [Action])] - -> IO [(Maybe [Action], Position, Position)] - strLn = liftIO . mapM getCoords - iconW i = maybe 0 Bitmap.width (lookup i $ iconS conf) - getCoords (Text s,_,i,a) = - textWidth d (safeIndex fs i) s >>= \tw -> return (a, 0, fi tw) - getCoords (Icon s,_,_,a) = return (a, 0, fi $ iconW s) - getCoords (Hspace w,_,_,a) = return (a, 0, fi w) - partCoord off xs = map (\(a, x, x') -> (fromJust a, x, x')) $ - filter (\(a, _,_) -> isJust a) $ - scanl (\(_,_,x') (a,_,w') -> (a, x', x' + w')) - (Nothing, 0, off) - xs - totSLen = foldr (\(_,_,len) -> (+) len) 0 - remWidth xs = fi wid - totSLen xs - offs = 1 - offset a xs = case a of - C -> (remWidth xs + offs) `div` 2 - R -> remWidth xs - L -> offs - fmap concat $ mapM (\(a,xs) -> - (\xs' -> partCoord (offset a xs') xs') <$> strLn xs) $ - zip [L,C,R] [left,center,right] -- cgit v1.2.3