75 lines
2.3 KiB
Haskell
75 lines
2.3 KiB
Haskell
{-# LANGUAGE OverloadedStrings #-}
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--------------------------------------------------------------------------------
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-- | Device plugin
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--
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-- Display different text depending on whether or not the interface has
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-- connectivity
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module Xmobar.Plugins.Device
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( Device(..)
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, devDep
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) where
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import Data.Internal.DBus
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import Data.Internal.Dependency
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import DBus
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import RIO
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import qualified RIO.Text as T
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import XMonad.Internal.Command.Desktop
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import XMonad.Internal.DBus.Common
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import Xmobar
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import Xmobar.Plugins.Common
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newtype Device = Device (T.Text, T.Text, Colors) deriving (Read, Show)
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nmPath :: ObjectPath
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nmPath = objectPath_ "/org/freedesktop/NetworkManager"
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nmInterface :: InterfaceName
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nmInterface = interfaceName_ "org.freedesktop.NetworkManager"
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nmDeviceInterface :: InterfaceName
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nmDeviceInterface = interfaceName_ "org.freedesktop.NetworkManager.Device"
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getByIP :: MemberName
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getByIP = memberName_ "GetDeviceByIpIface"
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devSignal :: T.Text
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devSignal = "Ip4Connectivity"
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devDep :: DBusDependency_ SysClient
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devDep = Endpoint networkManagerPkgs networkManagerBus nmPath nmInterface
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$ Method_ getByIP
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getDevice :: SysClient -> T.Text -> IO (Maybe ObjectPath)
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getDevice sys iface = bodyToMaybe <$> callMethod' sys mc
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where
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mc = (methodCallBus networkManagerBus nmPath nmInterface getByIP)
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{ methodCallBody = [toVariant iface]
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}
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getDeviceConnected :: ObjectPath -> SysClient -> IO [Variant]
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getDeviceConnected path = callPropertyGet networkManagerBus path nmDeviceInterface
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$ memberName_ $ T.unpack devSignal
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matchStatus :: [Variant] -> SignalMatch Word32
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matchStatus = matchPropertyChanged nmDeviceInterface devSignal
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instance Exec Device where
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alias (Device (iface, _, _)) = T.unpack iface
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start (Device (iface, text, colors)) cb = do
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withDBusClientConnection cb $ \sys -> liftIO $ do
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path <- getDevice sys iface
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displayMaybe_ cb (listener sys) path
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where
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listener sys path = do
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rule <- matchPropertyFull sys networkManagerBus (Just path)
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-- TODO warn the user here rather than silently drop the listener
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forM_ rule $ \r ->
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startListener r (getDeviceConnected path) matchStatus chooseColor' cb sys
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chooseColor' = return . (\s -> colorText colors s text) . (> 1)
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