52 lines
1.5 KiB
Haskell
52 lines
1.5 KiB
Haskell
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-- | Clevo Keyboard plugin
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--
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-- Use the custom DBus interface exported by the XMonad process so I can react
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-- to signals spawned by commands
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module Xmobar.Plugins.ClevoKeyboard
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( ClevoKeyboard(..)
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, ckAlias
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) where
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import Data.Char
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import Data.Text (unpack)
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import Data.Text.IO as T (readFile)
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import Xmobar
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import XMonad.Hooks.DynamicLog (xmobarColor)
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-- import XMonad.Internal.DBus.IntelBacklight
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data ClevoKeyboard = ClevoKeyboard (String, String, String) Int
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deriving (Read, Show)
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ckAlias :: String
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ckAlias = "clevokeyboard"
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brightnessFile :: FilePath
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brightnessFile = "/sys/devices/platform/tuxedo_keyboard/brightness"
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stateFile :: FilePath
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stateFile = "/sys/devices/platform/tuxedo_keyboard/state"
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readBrightness :: FilePath -> IO Integer
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readBrightness file = read . takeWhile isDigit . unpack <$> T.readFile file
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readState :: FilePath -> IO Bool
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readState file = (==1) <$> readBrightness file
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instance Exec ClevoKeyboard where
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alias (ClevoKeyboard _ _) = ckAlias
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rate (ClevoKeyboard _ r) = r
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run (ClevoKeyboard (icon, colorOn, colorOff) _) = do
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b <- readBrightness brightnessFile
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s <- readState stateFile
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return $ formatBrightness s (fromIntegral b :: Double)
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where
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formatBrightness s b =
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let iconColor = if s then colorOn else colorOff
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n = show (round $ b / 255 * 100 :: Integer) ++ "%"
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in xmobarColor iconColor "" icon ++ n
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