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Diffstat (limited to 'src/Main.hs')
| -rw-r--r-- | src/Main.hs | 258 |
1 files changed, 0 insertions, 258 deletions
diff --git a/src/Main.hs b/src/Main.hs deleted file mode 100644 index 9780114..0000000 --- a/src/Main.hs +++ /dev/null @@ -1,258 +0,0 @@ -{-# LANGUAGE FlexibleContexts #-} ------------------------------------------------------------------------------ --- | --- Module : Xmobar.Main --- Copyright : (c) Andrea Rossato --- License : BSD-style (see LICENSE) --- --- Maintainer : Jose A. Ortega Ruiz <jao@gnu.org> --- Stability : unstable --- Portability : unportable --- --- The main module of Xmobar, a text based status bar --- ------------------------------------------------------------------------------ - -module Main ( -- * Main Stuff - -- $main - main - , readConfig - , readDefaultConfig - ) where - -import Xmobar -import Parsers -import Config -import XUtil - -import Data.Foldable (for_) -import Data.List (intercalate) -import qualified Data.Map as Map - -import Paths_xmobar (version) -import Data.Version (showVersion) -import Graphics.X11.Xlib -import System.Console.GetOpt -import System.Directory (getHomeDirectory) -import System.Exit -import System.Environment -import System.FilePath ((</>)) -import System.Posix.Files -import Control.Concurrent.Async (Async, cancel) -import Control.Exception (bracket) -import Control.Monad (unless) -import Text.Read (readMaybe) - -import Signal (setupSignalHandler, withDeferSignals) - --- $main - --- | The main entry point -main :: IO () -main = withDeferSignals $ do - initThreads - d <- openDisplay "" - args <- getArgs - (o,file) <- getOpts args - (c,defaultings) <- case file of - [cfgfile] -> readConfig cfgfile - _ -> readDefaultConfig - - unless (null defaultings) $ putStrLn $ - "Fields missing from config defaulted: " ++ intercalate "," defaultings - - conf <- doOpts c o - fs <- initFont d (font conf) - fl <- mapM (initFont d) (additionalFonts conf) - cls <- mapM (parseTemplate conf) (splitTemplate conf) - sig <- setupSignalHandler - 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 vars - -cleanupThreads :: [[([Async ()], a)]] -> IO () -cleanupThreads vars = - -- putStrLn "In cleanupThreads" - for_ (concat vars) $ \(asyncs, _) -> - for_ asyncs cancel - --- | Splits the template in its parts -splitTemplate :: Config -> [String] -splitTemplate conf = - case break (==l) t of - (le,_:re) -> case break (==r) re of - (ce,_:ri) -> [le, ce, ri] - _ -> def - _ -> def - where [l, r] = alignSep - (if length (alignSep conf) == 2 then conf else defaultConfig) - t = template conf - def = [t, "", ""] - - --- | Reads the configuration files or quits with an error -readConfig :: FilePath -> IO (Config,[String]) -readConfig f = do - file <- io $ fileExist f - s <- io $ if file then readFileSafe f else error $ - f ++ ": file not found!\n" ++ usage - either (\err -> error $ f ++ - ": configuration file contains errors at:\n" ++ show err) - return $ parseConfig s - -xdgConfigDir :: IO String -xdgConfigDir = do env <- getEnvironment - case lookup "XDG_CONFIG_HOME" env of - Just val -> return val - Nothing -> fmap (</> ".config") getHomeDirectory - -xmobarConfigDir :: IO FilePath -xmobarConfigDir = fmap (</> "xmobar") xdgConfigDir - -getXdgConfigFile :: IO FilePath -getXdgConfigFile = fmap (</> "xmobarrc") xmobarConfigDir - --- | Read default configuration file or load the default config -readDefaultConfig :: IO (Config,[String]) -readDefaultConfig = do - xdgConfigFile <- getXdgConfigFile - xdgConfigFileExists <- io $ fileExist xdgConfigFile - home <- io $ getEnv "HOME" - let defaultConfigFile = home ++ "/.xmobarrc" - defaultConfigFileExists <- io $ fileExist defaultConfigFile - if xdgConfigFileExists - then readConfig xdgConfigFile - else if defaultConfigFileExists - then readConfig defaultConfigFile - else return (defaultConfig,[]) - -data Opts = Help - | Version - | Font String - | BgColor String - | FgColor String - | Alpha String - | T - | B - | D - | AlignSep String - | Commands String - | AddCommand String - | SepChar String - | Template String - | OnScr String - | IconRoot String - | Position String - | WmClass String - | WmName String - deriving Show - -options :: [OptDescr Opts] -options = - [ Option "h?" ["help"] (NoArg Help) "This help" - , Option "V" ["version"] (NoArg Version) "Show version information" - , Option "f" ["font"] (ReqArg Font "font name") "The font name" - , Option "w" ["wmclass"] (ReqArg WmClass "class") "X11 WM_CLASS property" - , Option "n" ["wmname"] (ReqArg WmName "name") "X11 WM_NAME property" - , Option "B" ["bgcolor"] (ReqArg BgColor "bg color" ) - "The background color. Default black" - , Option "F" ["fgcolor"] (ReqArg FgColor "fg color") - "The foreground color. Default grey" - , Option "i" ["iconroot"] (ReqArg IconRoot "path") - "Root directory for icon pattern paths. Default '.'" - , Option "A" ["alpha"] (ReqArg Alpha "alpha") - "The transparency: 0 is transparent, 255 is opaque. Default: 255" - , Option "o" ["top"] (NoArg T) "Place xmobar at the top of the screen" - , Option "b" ["bottom"] (NoArg B) - "Place xmobar at the bottom of the screen" - , Option "d" ["dock"] (NoArg D) - "Don't override redirect from WM and function as a dock" - , Option "a" ["alignsep"] (ReqArg AlignSep "alignsep") - "Separators for left, center and right text\nalignment. Default: '}{'" - , Option "s" ["sepchar"] (ReqArg SepChar "char") - ("The character used to separate commands in" ++ - "\nthe output template. Default '%'") - , Option "t" ["template"] (ReqArg Template "template") - "The output template" - , Option "c" ["commands"] (ReqArg Commands "commands") - "The list of commands to be executed" - , Option "C" ["add-command"] (ReqArg AddCommand "command") - "Add to the list of commands to be executed" - , Option "x" ["screen"] (ReqArg OnScr "screen") - "On which X screen number to start" - , Option "p" ["position"] (ReqArg Position "position") - "Specify position of xmobar. Same syntax as in config file" - ] - -getOpts :: [String] -> IO ([Opts], [String]) -getOpts argv = - case getOpt Permute options argv of - (o,n,[]) -> return (o,n) - (_,_,errs) -> error (concat errs ++ usage) - -usage :: String -usage = usageInfo header options ++ footer - where header = "Usage: xmobar [OPTION...] [FILE]\nOptions:" - footer = "\nMail bug reports and suggestions to " ++ mail ++ "\n" - -info :: String -info = "xmobar " ++ showVersion version - ++ "\n (C) 2007 - 2010 Andrea Rossato " - ++ "\n (C) 2010 - 2018 Jose A Ortega Ruiz\n " - ++ mail ++ "\n" ++ license - -mail :: String -mail = "<mail@jao.io>" - -license :: String -license = "\nThis program is distributed in the hope that it will be useful," ++ - "\nbut WITHOUT ANY WARRANTY; without even the implied warranty of" ++ - "\nMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." ++ - "\nSee the License for more details." - -doOpts :: Config -> [Opts] -> IO Config -doOpts conf [] = - return (conf {lowerOnStart = lowerOnStart conf && overrideRedirect conf}) -doOpts conf (o:oo) = - case o of - Help -> putStr usage >> exitSuccess - Version -> putStrLn info >> exitSuccess - Font s -> doOpts' (conf {font = s}) - WmClass s -> doOpts' (conf {wmClass = s}) - WmName s -> doOpts' (conf {wmName = s}) - BgColor s -> doOpts' (conf {bgColor = s}) - FgColor s -> doOpts' (conf {fgColor = s}) - Alpha n -> doOpts' (conf {alpha = read n}) - T -> doOpts' (conf {position = Top}) - B -> doOpts' (conf {position = Bottom}) - D -> doOpts' (conf {overrideRedirect = False}) - AlignSep s -> doOpts' (conf {alignSep = s}) - SepChar s -> doOpts' (conf {sepChar = s}) - Template s -> doOpts' (conf {template = s}) - IconRoot s -> doOpts' (conf {iconRoot = s}) - OnScr n -> doOpts' (conf {position = OnScreen (read n) $ position conf}) - Commands s -> case readCom 'c' s of - Right x -> doOpts' (conf {commands = x}) - Left e -> putStr (e ++ usage) >> exitWith (ExitFailure 1) - AddCommand s -> case readCom 'C' s of - Right x -> doOpts' (conf {commands = commands conf ++ x}) - Left e -> putStr (e ++ usage) >> exitWith (ExitFailure 1) - Position s -> readPosition s - where readCom c str = - case readStr str of - [x] -> Right x - _ -> Left ("xmobar: cannot read list of commands " ++ - "specified with the -" ++ c:" option\n") - readStr str = [x | (x,t) <- reads str, ("","") <- lex t] - doOpts' opts = doOpts opts oo - readPosition string = - case readMaybe string of - Just x -> doOpts' (conf { position = x }) - Nothing -> do - putStrLn "Can't parse position option, ignoring" - doOpts' conf |