27 lines
928 B
Haskell
27 lines
928 B
Haskell
{-# LANGUAGE OverloadedStrings #-}
|
|
|
|
--------------------------------------------------------------------------------
|
|
-- | Common backlight plugin bits
|
|
--
|
|
-- Use the custom DBus interface exported by the XMonad process so I can react
|
|
-- to signals spawned by commands
|
|
|
|
module Xmobar.Plugins.BacklightCommon (startBacklight) where
|
|
|
|
import Data.Internal.DBus
|
|
|
|
import RIO
|
|
import qualified RIO.Text as T
|
|
|
|
import Xmobar.Plugins.Common
|
|
|
|
startBacklight :: RealFrac a => ((Maybe a -> IO ()) -> SesClient -> IO ())
|
|
-> (SesClient -> IO (Maybe a)) -> T.Text -> Callback -> IO ()
|
|
startBacklight matchSignal callGetBrightness icon cb = do
|
|
withDBusClientConnection cb $ \c -> liftIO $ do
|
|
matchSignal dpy c
|
|
dpy =<< callGetBrightness c
|
|
where
|
|
formatBrightness b = return $ T.concat [icon, T.pack $ show (round b :: Integer), "%"]
|
|
dpy = displayMaybe cb formatBrightness
|