27 lines
789 B
Haskell
27 lines
789 B
Haskell
{-# LANGUAGE OverloadedStrings #-}
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-- Common backlight plugin bits
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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.BacklightCommon (startBacklight) where
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import Data.Internal.DBus
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import qualified RIO.Text as T
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import Xmobar.Plugins.Common
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startBacklight
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:: RealFrac a
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=> ((Maybe a -> IO ()) -> SesClient -> IO ())
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-> (SesClient -> IO (Maybe a))
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-> T.Text
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-> Callback
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-> IO ()
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startBacklight matchSignal callGetBrightness icon cb = do
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withDBusClientConnection cb $ \c -> do
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matchSignal display c
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display =<< callGetBrightness c
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where
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formatBrightness b = return $ T.concat [icon, T.pack $ show (round b :: Integer), "%"]
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display = displayMaybe cb formatBrightness
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