66 lines
1.7 KiB
Haskell
66 lines
1.7 KiB
Haskell
{-# LANGUAGE LambdaCase #-}
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{-# LANGUAGE OverloadedStrings #-}
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--------------------------------------------------------------------------------
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-- | Bluetooth plugin
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--
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-- Use the bluez interface on DBus to check status
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module Xmobar.Plugins.Bluetooth
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( Bluetooth(..)
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, btAlias
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, btBus
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, btPath
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, btPowered
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, btInterface
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) where
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import DBus
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import DBus.Client
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import XMonad.Hooks.DynamicLog (xmobarColor)
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import Xmobar
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data Bluetooth = Bluetooth (String, String, String) Int
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deriving (Read, Show)
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callGetPowered :: Client -> IO (Either MethodError Variant)
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callGetPowered client =
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getProperty client (methodCall btPath btInterface $ memberName_ btPowered)
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{ methodCallDestination = Just btBus }
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btInterface :: InterfaceName
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btInterface = "org.bluez.Adapter1"
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-- weird that this is a string when introspecting but a member name when calling
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-- a method, not sure if it is supposed to work like that
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btPowered :: String
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btPowered = "Powered"
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btBus :: BusName
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btBus = "org.bluez"
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-- TODO this feels like something that shouldn't be hardcoded
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btPath :: ObjectPath
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btPath = "/org/bluez/hci0"
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btAlias :: String
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btAlias = "bluetooth"
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instance Exec Bluetooth where
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alias (Bluetooth _ _) = btAlias
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rate (Bluetooth _ r) = r
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run (Bluetooth (text, colorOn, colorOff) _) = do
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client <- connectSystem
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reply <- callGetPowered client
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disconnect client
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return $ fmtState $ procReply reply
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where
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procReply = \case
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-- TODO handle errors?
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Right r -> fromVariant r
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Left _ -> Nothing
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fmtState = \case
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Just s -> xmobarColor (if s then colorOn else colorOff) "" text
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Nothing -> "N/A"
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