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-rw-r--r--src/Xmobar/App/CommandThreads.hs82
-rw-r--r--src/Xmobar/App/EventLoop.hs31
-rw-r--r--src/Xmobar/App/Main.hs55
-rw-r--r--src/Xmobar/App/TextEventLoop.hs53
-rw-r--r--src/Xmobar/X11/Draw.hs6
-rw-r--r--src/Xmobar/X11/Parsers.hs55
6 files changed, 129 insertions, 153 deletions
diff --git a/src/Xmobar/App/CommandThreads.hs b/src/Xmobar/App/CommandThreads.hs
index 1de2936..931a072 100644
--- a/src/Xmobar/App/CommandThreads.hs
+++ b/src/Xmobar/App/CommandThreads.hs
@@ -1,3 +1,5 @@
+{-# LANGUAGE CPP #-}
+
------------------------------------------------------------------------------
-- |
-- Module: Xmobar.App.CommandThreads
@@ -14,18 +16,29 @@
--
------------------------------------------------------------------------------
-module Xmobar.App.CommandThreads ( startCommand
+module Xmobar.App.CommandThreads ( initLoop
+ , loop
, newRefreshLock
- , refreshLock
- , refreshLockT) where
+ , refreshLock) where
+import Control.Concurrent (forkIO)
+import Control.Exception (bracket_, bracket, handle, SomeException(..))
import Control.Concurrent.STM
-import Control.Concurrent.Async (Async, async)
-import Control.Exception (bracket_)
+import Control.Concurrent.Async (Async, async, cancel)
+import Control.Monad (guard, void, unless)
+import Data.Maybe (isJust)
+import Data.Foldable (for_)
-import Xmobar.System.Signal (SignalType)
+import Xmobar.System.Signal
+import Xmobar.Config.Types
import Xmobar.Run.Runnable (Runnable)
import Xmobar.Run.Exec (start, trigger, alias)
+import Xmobar.Run.Template
+import Xmobar.App.Timer (withTimer)
+
+#ifdef DBUS
+import Xmobar.System.DBus
+#endif
newRefreshLock :: IO (TMVar ())
newRefreshLock = newTMVarIO ()
@@ -43,6 +56,45 @@ refreshLockT var action = do
putTMVar var ()
return r
+type StartFunction = TMVar SignalType
+ -> TMVar ()
+ -> [[([Async ()], TVar String)]]
+ -> IO ()
+
+loop :: Config -> StartFunction -> IO ()
+loop conf starter = withDeferSignals $ do
+ cls <- mapM (parseTemplate (commands conf) (sepChar conf))
+ (splitTemplate (alignSep conf) (template conf))
+ let confSig = unSignalChan (signal conf)
+ sig <- maybe newEmptyTMVarIO pure confSig
+ unless (isJust confSig) $ setupSignalHandler sig
+ refLock <- newRefreshLock
+ withTimer (refreshLock refLock) $
+ bracket (mapM (mapM $ startCommand sig) cls)
+ cleanupThreads
+ $ \vars -> do
+ starter sig refLock vars
+
+cleanupThreads :: [[([Async ()], a)]] -> IO ()
+cleanupThreads vars =
+ for_ (concat vars) $ \(asyncs, _) ->
+ for_ asyncs cancel
+
+-- | Initialises context for an event loop, returning a TVar that
+-- will hold the current list of values computed by commands.
+initLoop :: TMVar SignalType -> TMVar () -> [[([Async ()], TVar String)]]
+ -> IO (TVar [String])
+initLoop sig lock vs = do
+ tv <- newTVarIO ([] :: [String])
+ _ <- forkIO (handle (handler "checker") (checker tv [] vs sig lock))
+#ifdef DBUS
+ runIPC sig
+#endif
+ return tv
+ where
+ handler thing (SomeException e) =
+ void $ putStrLn ("Thread " ++ thing ++ " failed: " ++ show e)
+
-- | Runs a command as an independent thread and returns its Async handles
-- and the TVar the command will be writing to.
startCommand :: TMVar SignalType
@@ -59,3 +111,21 @@ startCommand sig (com,s,ss)
(atomically . putTMVar sig)
return ([a1, a2], var)
where is = s ++ "Updating..." ++ ss
+
+-- | Send signal to eventLoop every time a var is updated
+checker :: TVar [String]
+ -> [String]
+ -> [[([Async ()], TVar String)]]
+ -> TMVar SignalType
+ -> TMVar ()
+ -> IO ()
+checker tvar ov vs sig pauser = do
+ nval <- atomically $ refreshLockT pauser $ do
+ nv <- mapM concatV vs
+ guard (nv /= ov)
+ writeTVar tvar nv
+ return nv
+ atomically $ putTMVar sig Wakeup
+ checker tvar nval vs sig pauser
+ where
+ concatV = fmap concat . mapM (readTVar . snd)
diff --git a/src/Xmobar/App/EventLoop.hs b/src/Xmobar/App/EventLoop.hs
index 1764b1d..b1bd3ff 100644
--- a/src/Xmobar/App/EventLoop.hs
+++ b/src/Xmobar/App/EventLoop.hs
@@ -52,7 +52,7 @@ import Xmobar.X11.Bitmap as Bitmap
import Xmobar.X11.Types
import Xmobar.System.Utils (safeIndex)
-import Xmobar.App.CommandThreads (refreshLockT)
+import Xmobar.App.CommandThreads (initLoop)
#ifndef THREADED_RUNTIME
import Xmobar.X11.Events(nextEvent')
@@ -62,10 +62,6 @@ import Xmobar.X11.Events(nextEvent')
import Graphics.X11.Xft
#endif
-#ifdef DBUS
-import Xmobar.System.DBus
-#endif
-
runX :: XConf -> X () -> IO ()
runX xc f = runReaderT f xc
@@ -79,16 +75,12 @@ startLoop xcfg@(XConf _ _ w _ _ _ _) sig pauser vs = do
#ifdef XFT
xftInitFtLibrary
#endif
- tv <- newTVarIO []
- _ <- forkIO (handle (handler "checker") (checker tv [] vs sig pauser))
+ tv <- initLoop sig pauser vs
#ifdef THREADED_RUNTIME
_ <- forkOS (handle (handler "eventer") (eventer sig))
#else
_ <- forkIO (handle (handler "eventer") (eventer sig))
#endif
-#ifdef DBUS
- runIPC sig
-#endif
eventLoop tv xcfg [] sig
where
handler thing (SomeException e) =
@@ -115,25 +107,6 @@ startLoop xcfg@(XConf _ _ w _ _ _ _) sig pauser vs = do
putTMVar signal (Action (ev_button ev) (fi $ ev_x ev))
_ -> return ()
--- | Send signal to eventLoop every time a var is updated
-checker :: TVar [String]
- -> [String]
- -> [[([Async ()], TVar String)]]
- -> TMVar SignalType
- -> TMVar ()
- -> IO ()
-checker tvar ov vs signal pauser = do
- nval <- atomically $ refreshLockT pauser $ do
- nv <- mapM concatV vs
- guard (nv /= ov)
- writeTVar tvar nv
- return nv
- atomically $ putTMVar signal Wakeup
- checker tvar nval vs signal pauser
- where
- concatV = fmap concat . mapM (readTVar . snd)
-
-
-- | Continuously wait for a signal from a thread or a interrupt handler
eventLoop :: TVar [String]
-> XConf
diff --git a/src/Xmobar/App/Main.hs b/src/Xmobar/App/Main.hs
index ead3249..7bcf3bd 100644
--- a/src/Xmobar/App/Main.hs
+++ b/src/Xmobar/App/Main.hs
@@ -17,37 +17,30 @@
module Xmobar.App.Main (xmobar, xmobarMain, configFromArgs) where
-import Control.Concurrent.Async (Async, cancel)
-import Control.Concurrent.STM (newEmptyTMVarIO)
-import Control.Exception (bracket)
-import Control.Monad (unless)
-
-import Data.Foldable (for_)
import qualified Data.Map as Map
import Data.List (intercalate)
-import Data.Maybe (isJust)
import System.Posix.Process (executeFile)
import System.Environment (getArgs)
import System.FilePath ((</>), takeBaseName, takeDirectory, takeExtension)
import Text.Parsec.Error (ParseError)
import Data.List.NonEmpty (NonEmpty(..))
+import Control.Monad (unless)
import Graphics.X11.Xlib
import Xmobar.Config.Types
import Xmobar.Config.Parse
-import Xmobar.System.Signal (setupSignalHandler, withDeferSignals)
-import Xmobar.Run.Template
+import Xmobar.System.Signal (withDeferSignals)
+
import Xmobar.X11.Types
import Xmobar.X11.Text
import Xmobar.X11.Window
import Xmobar.App.Opts (recompileFlag, verboseFlag, getOpts, doOpts)
-import Xmobar.App.CommandThreads (startCommand, newRefreshLock, refreshLock)
+import Xmobar.App.CommandThreads (loop)
import Xmobar.App.EventLoop (startLoop)
import Xmobar.App.TextEventLoop (startTextLoop)
import Xmobar.App.Compile (recompile, trace)
import Xmobar.App.Config
-import Xmobar.App.Timer (withTimer)
xXmobar :: Config -> IO ()
xXmobar conf = withDeferSignals $ do
@@ -55,36 +48,15 @@ xXmobar conf = withDeferSignals $ do
d <- openDisplay ""
fs <- initFont d (font conf)
fl <- mapM (initFont d) (additionalFonts conf)
- cls <- mapM (parseTemplate (commands conf) (sepChar conf))
- (splitTemplate (alignSep conf) (template conf))
- let confSig = unSignalChan (signal conf)
- sig <- maybe newEmptyTMVarIO pure confSig
- unless (isJust confSig) $ setupSignalHandler sig
- refLock <- newRefreshLock
- withTimer (refreshLock refLock) $
- bracket (mapM (mapM $ startCommand sig) cls)
- cleanupThreads
- $ \vars -> do
- (r,w) <- createWin d fs conf
- let ic = Map.empty
- to = textOffset conf
- ts = textOffsets conf ++ replicate (length fl) (-1)
- startLoop (XConf d r w (fs :| fl) (to :| ts) ic conf) sig refLock vars
+ let ic = Map.empty
+ to = textOffset conf
+ ts = textOffsets conf ++ replicate (length fl) (-1)
+ loop conf $ \sig lock vars -> do
+ (r,w) <- createWin d fs conf
+ startLoop (XConf d r w (fs :| fl) (to :| ts) ic conf) sig lock vars
textXmobar :: Config -> IO ()
-textXmobar conf = withDeferSignals $ do
- initThreads
- cls <- mapM (parseTemplate (commands conf) (sepChar conf))
- (splitTemplate (alignSep conf) (template conf))
- let confSig = unSignalChan (signal conf)
- sig <- maybe newEmptyTMVarIO pure confSig
- unless (isJust confSig) $ setupSignalHandler sig
- refLock <- newRefreshLock
- withTimer (refreshLock refLock) $
- bracket (mapM (mapM $ startCommand sig) cls)
- cleanupThreads
- $ \vars -> do
- startTextLoop conf sig refLock vars
+textXmobar conf = loop conf (startTextLoop conf)
xmobar :: Config -> IO ()
xmobar cfg = if textOutput cfg then textXmobar cfg else xXmobar cfg
@@ -92,11 +64,6 @@ xmobar cfg = if textOutput cfg then textXmobar cfg else xXmobar cfg
configFromArgs :: Config -> IO Config
configFromArgs cfg = getArgs >>= getOpts >>= doOpts cfg . fst
-cleanupThreads :: [[([Async ()], a)]] -> IO ()
-cleanupThreads vars =
- for_ (concat vars) $ \(asyncs, _) ->
- for_ asyncs cancel
-
buildLaunch :: [String] -> Bool -> Bool -> String -> ParseError -> IO ()
buildLaunch args verb force p e = do
let exec = takeBaseName p
diff --git a/src/Xmobar/App/TextEventLoop.hs b/src/Xmobar/App/TextEventLoop.hs
index 50ee17c..6135554 100644
--- a/src/Xmobar/App/TextEventLoop.hs
+++ b/src/Xmobar/App/TextEventLoop.hs
@@ -1,5 +1,3 @@
-{-# LANGUAGE CPP #-}
-
------------------------------------------------------------------------------
-- |
-- Module: Xmobar.App.TextEventLoop
@@ -21,21 +19,14 @@ module Xmobar.App.TextEventLoop (startTextLoop) where
import Prelude hiding (lookup)
import Control.Monad.Reader
-import Control.Concurrent
+
import Control.Concurrent.Async (Async)
import Control.Concurrent.STM
-import Control.Exception (handle, SomeException(..))
import Xmobar.System.Signal
import Xmobar.Config.Types (Config)
-
-import Xmobar.X11.Parsers (parseStringAsText)
-
-import Xmobar.App.CommandThreads (refreshLockT)
-
-#ifdef DBUS
-import Xmobar.System.DBus
-#endif
+import Xmobar.X11.Parsers (Segment, Widget(..), parseString)
+import Xmobar.App.CommandThreads (initLoop)
-- | Starts the main event loop and threads
startTextLoop :: Config
@@ -44,33 +35,8 @@ startTextLoop :: Config
-> [[([Async ()], TVar String)]]
-> IO ()
startTextLoop cfg sig pauser vs = do
- tv <- newTVarIO []
- _ <- forkIO (handle (handler "checker") (checker tv [] vs sig pauser))
-#ifdef DBUS
- runIPC sig
-#endif
+ tv <- initLoop sig pauser vs
eventLoop cfg tv sig
- where
- handler thing (SomeException e) =
- void $ putStrLn ("Thread " ++ thing ++ " failed: " ++ show e)
-
--- | Send signal to eventLoop every time a var is updated
-checker :: TVar [String]
- -> [String]
- -> [[([Async ()], TVar String)]]
- -> TMVar SignalType
- -> TMVar ()
- -> IO ()
-checker tvar ov vs signal pauser = do
- nval <- atomically $ refreshLockT pauser $ do
- nv <- mapM concatV vs
- guard (nv /= ov)
- writeTVar tvar nv
- return nv
- atomically $ putTMVar signal Wakeup
- checker tvar nval vs signal pauser
- where
- concatV = fmap concat . mapM (readTVar . snd)
-- | Continuously wait for a signal from a thread or a interrupt handler
eventLoop :: Config -> TVar [String] -> TMVar SignalType -> IO ()
@@ -85,3 +51,14 @@ updateString conf v = do
s <- readTVarIO v
let l:c:r:_ = s ++ repeat ""
liftIO $ concat `fmap` mapM (parseStringAsText conf) [l, c, r]
+
+asText :: Segment -> String
+asText (Text s, _, _, _) = s
+asText (Hspace n, _, _, _) = replicate (fromIntegral n) ' '
+asText _ = ""
+
+parseStringAsText :: Config -> String -> IO String
+parseStringAsText c s = do
+ segments <- parseString c s
+ let txts = map asText segments
+ return (concat txts)
diff --git a/src/Xmobar/X11/Draw.hs b/src/Xmobar/X11/Draw.hs
index 1b3d4ee..129701b 100644
--- a/src/Xmobar/X11/Draw.hs
+++ b/src/Xmobar/X11/Draw.hs
@@ -4,7 +4,7 @@
------------------------------------------------------------------------------
-- |
-- Module: Xmobar.X11.Draw
--- Copyright: (c) 2018, 2020 Jose Antonio Ortega Ruiz
+-- Copyright: (c) 2018, 2020, 2022 Jose Antonio Ortega Ruiz
-- License: BSD3-style (see LICENSE)
--
-- Maintainer: jao@gnu.org
@@ -149,9 +149,7 @@ printStrings dr gc fontlist voffs offs a boxes sl@((s,c,i,l):xs) = do
C -> (remWidth + offs) `div` 2
R -> remWidth
L -> offs
- (fc,bc) = case break (==',') (tColorsString c) of
- (f,',':b) -> (f, b )
- (f, _) -> (f, bgColor conf)
+ (fc,bc) = colorComponents conf (tColorsString c)
valign <- verticalOffset ht s fontst voff conf
let (ht',ay) = case (tBgTopOffset c, tBgBottomOffset c) of
(-1,_) -> (0, -1)
diff --git a/src/Xmobar/X11/Parsers.hs b/src/Xmobar/X11/Parsers.hs
index 34d4336..0119208 100644
--- a/src/Xmobar/X11/Parsers.hs
+++ b/src/Xmobar/X11/Parsers.hs
@@ -2,20 +2,21 @@
-----------------------------------------------------------------------------
-- |
--- Module : Xmobar.Parsers
+-- Module : Xmobar.X11.Parsers
-- Copyright : (c) Andrea Rossato
-- License : BSD-style (see LICENSE)
--
-- Maintainer : Jose A. Ortega Ruiz <jao@gnu.org>
-- Stability : unstable
--- Portability : unportable
+-- Portability : portable
--
-- Parsing for template substrings
--
-----------------------------------------------------------------------------
module Xmobar.X11.Parsers ( parseString
- , parseStringAsText
+ , colorComponents
+ , Segment
, Box(..)
, BoxBorder(..)
, BoxOffset(..)
@@ -56,9 +57,10 @@ data TextRenderInfo =
} deriving Show
type FontIndex = Int
+type Segment = (Widget, TextRenderInfo, FontIndex, Maybe [Action])
+
-- | Runs the string parser
-parseString :: Config -> String
- -> IO [(Widget, TextRenderInfo, FontIndex, Maybe [Action])]
+parseString :: Config -> String -> IO [Segment]
parseString c s =
case parse (stringParser ci 0 Nothing) "" s of
Left _ -> return [(Text $ "Could not parse string: " ++ s
@@ -68,20 +70,17 @@ parseString c s =
Right x -> return (concat x)
where ci = TextRenderInfo (fgColor c) 0 0 []
-asText :: (Widget, TextRenderInfo, FontIndex, Maybe [Action]) -> String
-asText (Text s, _, _, _) = s
-asText _ = ""
-
-parseStringAsText :: Config -> String -> IO String
-parseStringAsText c s = do
- chunks <- parseString c s
- let txts = map asText chunks
- return (concat txts)
+-- | Splits a colors string into its two components
+colorComponents :: Config -> String -> (String, String)
+colorComponents conf c =
+ case break (==',') c of
+ (f,',':b) -> (f, b)
+ (f, _) -> (f, bgColor conf)
allParsers :: TextRenderInfo
-> FontIndex
-> Maybe [Action]
- -> Parser [(Widget, TextRenderInfo, FontIndex, Maybe [Action])]
+ -> Parser [Segment]
allParsers c f a = textParser c f a
<|> try (iconParser c f a)
<|> try (hspaceParser c f a)
@@ -92,13 +91,11 @@ allParsers c f a = textParser c f a
<|> colorParser c f a
-- | Gets the string and combines the needed parsers
-stringParser :: TextRenderInfo -> FontIndex -> Maybe [Action]
- -> Parser [[(Widget, TextRenderInfo, FontIndex, Maybe [Action])]]
+stringParser :: TextRenderInfo -> FontIndex -> Maybe [Action] -> Parser [[Segment]]
stringParser c f a = manyTill (allParsers c f a) eof
-- | Parses a maximal string without markup.
-textParser :: TextRenderInfo -> FontIndex -> Maybe [Action]
- -> Parser [(Widget, TextRenderInfo, FontIndex, Maybe [Action])]
+textParser :: TextRenderInfo -> FontIndex -> Maybe [Action] -> Parser [Segment]
textParser c f a = do s <- many1 $
noneOf "<" <|>
try (notFollowedBy' (char '<')
@@ -123,7 +120,7 @@ textParser c f a = do s <- many1 $
rawParser :: TextRenderInfo
-> FontIndex
-> Maybe [Action]
- -> Parser [(Widget, TextRenderInfo, FontIndex, Maybe [Action])]
+ -> Parser [Segment]
rawParser c f a = do
string "<raw="
lenstr <- many1 digit
@@ -144,22 +141,19 @@ notFollowedBy' p e = do x <- p
notFollowedBy $ try (e >> return '*')
return x
-iconParser :: TextRenderInfo -> FontIndex -> Maybe [Action]
- -> Parser [(Widget, TextRenderInfo, FontIndex, Maybe [Action])]
+iconParser :: TextRenderInfo -> FontIndex -> Maybe [Action] -> Parser [Segment]
iconParser c f a = do
string "<icon="
i <- manyTill (noneOf ">") (try (string "/>"))
return [(Icon i, c, f, a)]
-hspaceParser :: TextRenderInfo -> FontIndex -> Maybe [Action]
- -> Parser [(Widget, TextRenderInfo, FontIndex, Maybe [Action])]
+hspaceParser :: TextRenderInfo -> FontIndex -> Maybe [Action] -> Parser [Segment]
hspaceParser c f a = do
string "<hspace="
pVal <- manyTill digit (try (string "/>"))
return [(Hspace (fromMaybe 0 $ readMaybe pVal), c, f, a)]
-actionParser :: TextRenderInfo -> FontIndex -> Maybe [Action]
- -> Parser [(Widget, TextRenderInfo, FontIndex, Maybe [Action])]
+actionParser :: TextRenderInfo -> FontIndex -> Maybe [Action] -> Parser [Segment]
actionParser c f act = do
string "<action="
command <- choice [between (char '`') (char '`') (many1 (noneOf "`")),
@@ -177,8 +171,7 @@ toButtons :: String -> [Button]
toButtons = map (\x -> read [x])
-- | Parsers a string wrapped in a color specification.
-colorParser :: TextRenderInfo -> FontIndex -> Maybe [Action]
- -> Parser [(Widget, TextRenderInfo, FontIndex, Maybe [Action])]
+colorParser :: TextRenderInfo -> FontIndex -> Maybe [Action] -> Parser [Segment]
colorParser (TextRenderInfo _ _ _ bs) f a = do
c <- between (string "<fc=") (string ">") colors
let colorParts = break (==':') c
@@ -191,8 +184,7 @@ colorParser (TextRenderInfo _ _ _ bs) f a = do
return (concat s)
-- | Parses a string wrapped in a box specification.
-boxParser :: TextRenderInfo -> FontIndex -> Maybe [Action]
- -> Parser [(Widget, TextRenderInfo, FontIndex, Maybe [Action])]
+boxParser :: TextRenderInfo -> FontIndex -> Maybe [Action] -> Parser [Segment]
boxParser (TextRenderInfo cs ot ob bs) f a = do
c <- between (string "<box") (string ">") (option "" (many1 (alphaNum <|> char '=' <|> char ' ' <|> char '#' <|> char ',')))
let b = Box BBFull (BoxOffset C 0) 1 cs (BoxMargins 0 0 0 0)
@@ -231,8 +223,7 @@ boxParamReader (Box bb off lw fc mgs@(BoxMargins mt mr mb ml)) ('m':pos) val = d
boxParamReader b _ _ = b
-- | Parsers a string wrapped in a font specification.
-fontParser :: TextRenderInfo -> Maybe [Action]
- -> Parser [(Widget, TextRenderInfo, FontIndex, Maybe [Action])]
+fontParser :: TextRenderInfo -> Maybe [Action] -> Parser [Segment]
fontParser c a = do
f <- between (string "<fn=") (string ">") colors
s <- manyTill (allParsers c (fromMaybe 0 $ readMaybe f) a) (try $ string "</fn>")
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 23:06:57 +0000