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

41 lines
1.2 KiB
Haskell

{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE OverloadedStrings #-}
--------------------------------------------------------------------------------
-- | Bluetooth plugin
--
-- Use the bluez interface on DBus to check status
module Xmobar.Plugins.Bluetooth (Bluetooth(..)) where
import DBus
import DBus.Client
import Xmobar
import XMonad.Hooks.DynamicLog (xmobarColor)
data Bluetooth = Bluetooth (String, String, String) Int
deriving (Read, Show)
callGetPowered :: Client -> IO (Either MethodError Variant)
callGetPowered client =
getProperty client (methodCall "/org/bluez/hci0" "org.bluez.Adapter1" "Powered")
{ methodCallDestination = Just "org.bluez" }
instance Exec Bluetooth where
alias (Bluetooth _ _) = "bluetooth"
rate (Bluetooth _ r) = r
run (Bluetooth (text, colorOn, colorOff) _) = do
client <- connectSystem
reply <- callGetPowered client
disconnect client
return $ fmtState $ procReply reply
where
procReply = \case
-- TODO handle errors?
Right r -> fromVariant r
Left _ -> Nothing
fmtState = \case
Just s -> xmobarColor (if s then colorOn else colorOff) "" text
Nothing -> "N/A"