xmonad-config/lib/Xmobar/Plugins/ClevoKeyboard.hs

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{-# LANGUAGE LambdaCase #-}
--------------------------------------------------------------------------------
-- | Clevo Keyboard plugin
--
-- Use the custom DBus interface exported by the XMonad process so I can react
-- to signals spawned by commands
module Xmobar.Plugins.ClevoKeyboard
( ClevoKeyboard(..)
, ckAlias
) where
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import Control.Concurrent
import Control.Monad
import Xmobar
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import XMonad.Internal.DBus.Brightness.ClevoKeyboard
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data ClevoKeyboard = ClevoKeyboard String
deriving (Read, Show)
ckAlias :: String
ckAlias = "clevokeyboard"
instance Exec ClevoKeyboard where
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alias (ClevoKeyboard _) = ckAlias
start (ClevoKeyboard icon) cb = do
_ <- matchSignalCK $ cb . formatBrightness
cb . formatBrightness =<< callGetBrightnessCK
forever (threadDelay 5000000)
where
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formatBrightness = \case
Just b -> icon ++ show (round b :: Integer) ++ "%"
Nothing -> "N/A"