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Diffstat (limited to 'src/Plugins/Monitors/Bright.hs')
-rw-r--r-- | src/Plugins/Monitors/Bright.hs | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/src/Plugins/Monitors/Bright.hs b/src/Plugins/Monitors/Bright.hs deleted file mode 100644 index cb510f6..0000000 --- a/src/Plugins/Monitors/Bright.hs +++ /dev/null @@ -1,99 +0,0 @@ ------------------------------------------------------------------------------ ----- | ----- Module : Plugins.Monitors.Birght ----- Copyright : (c) Martin Perner ----- License : BSD-style (see LICENSE) ----- ----- Maintainer : Martin Perner <martin@perner.cc> ----- Stability : unstable ----- Portability : unportable ----- ----- A screen brightness monitor for Xmobar ----- -------------------------------------------------------------------------------- - -module Plugins.Monitors.Bright (brightConfig, runBright) where - -import Control.Applicative ((<$>)) -import Control.Exception (SomeException, handle) -import qualified Data.ByteString.Lazy.Char8 as B -import System.FilePath ((</>)) -import System.Posix.Files (fileExist) -import System.Console.GetOpt - -import Plugins.Monitors.Common - -data BrightOpts = BrightOpts { subDir :: String - , currBright :: String - , maxBright :: String - , curBrightIconPattern :: Maybe IconPattern - } - -defaultOpts :: BrightOpts -defaultOpts = BrightOpts { subDir = "acpi_video0" - , currBright = "actual_brightness" - , maxBright = "max_brightness" - , curBrightIconPattern = Nothing - } - -options :: [OptDescr (BrightOpts -> BrightOpts)] -options = [ Option "D" ["device"] (ReqArg (\x o -> o { subDir = x }) "") "" - , Option "C" ["curr"] (ReqArg (\x o -> o { currBright = x }) "") "" - , Option "M" ["max"] (ReqArg (\x o -> o { maxBright = x }) "") "" - , Option "" ["brightness-icon-pattern"] (ReqArg (\x o -> - o { curBrightIconPattern = Just $ parseIconPattern x }) "") "" - ] - --- from Batt.hs -parseOpts :: [String] -> IO BrightOpts -parseOpts argv = - case getOpt Permute options argv of - (o, _, []) -> return $ foldr id defaultOpts o - (_, _, errs) -> ioError . userError $ concat errs - -sysDir :: FilePath -sysDir = "/sys/class/backlight/" - -brightConfig :: IO MConfig -brightConfig = mkMConfig "<percent>" -- template - ["vbar", "percent", "bar", "ipat"] -- replacements - -data Files = Files { fCurr :: String - , fMax :: String - } - | NoFiles - -brightFiles :: BrightOpts -> IO Files -brightFiles opts = do - is_curr <- fileExist $ fCurr files - is_max <- fileExist $ fCurr files - return (if is_curr && is_max then files else NoFiles) - where prefix = sysDir </> subDir opts - files = Files { fCurr = prefix </> currBright opts - , fMax = prefix </> maxBright opts - } - -runBright :: [String] -> Monitor String -runBright args = do - opts <- io $ parseOpts args - f <- io $ brightFiles opts - c <- io $ readBright f - case f of - NoFiles -> return "hurz" - _ -> fmtPercent opts c >>= parseTemplate - where fmtPercent :: BrightOpts -> Float -> Monitor [String] - fmtPercent opts c = do r <- showVerticalBar (100 * c) c - s <- showPercentWithColors c - t <- showPercentBar (100 * c) c - d <- showIconPattern (curBrightIconPattern opts) c - return [r,s,t,d] - -readBright :: Files -> IO Float -readBright NoFiles = return 0 -readBright files = do - currVal<- grab $ fCurr files - maxVal <- grab $ fMax files - return (currVal / maxVal) - where grab f = handle handler (read . B.unpack <$> B.readFile f) - handler = const (return 0) :: SomeException -> IO Float - |