64 lines
1.9 KiB
Haskell
64 lines
1.9 KiB
Haskell
--------------------------------------------------------------------------------
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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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, btDep
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) where
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import Data.Maybe
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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 XMonad.Internal.DBus.Common
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import XMonad.Internal.Dependency
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import Xmobar
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newtype Bluetooth = Bluetooth (String, String, String) deriving (Read, Show)
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btInterface :: InterfaceName
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btInterface = interfaceName_ "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 = busName_ "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 = objectPath_ "/org/bluez/hci0"
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btAlias :: String
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btAlias = "bluetooth"
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btDep :: DBusDep
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btDep = Endpoint btBus btPath btInterface $ Property_ btPowered
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matchPowered :: [Variant] -> SignalMatch Bool
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matchPowered = matchPropertyChanged btInterface btPowered fromVariant
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callGetPowered :: Client -> IO [Variant]
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callGetPowered = callPropertyGet btBus btPath btInterface btPowered
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instance Exec Bluetooth where
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alias (Bluetooth _) = btAlias
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start (Bluetooth (text, colorOn, colorOff)) cb = do
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withDBusClientConnection_ True $ \c -> do
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reply <- callGetPowered c
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cb $ maybe "N/A" chooseColor $ fromVariant =<< listToMaybe reply
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addMatchCallback (matchProperty btPath) (procMatch cb . matchPowered) c
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where
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procMatch f (Match on) = f $ chooseColor on
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procMatch f Failure = f "N/A"
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procMatch _ NoMatch = return ()
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chooseColor state = xmobarColor (if state then colorOn else colorOff) "" text
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