44 lines
1.3 KiB
Haskell
44 lines
1.3 KiB
Haskell
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{-# LANGUAGE LambdaCase #-}
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{-# LANGUAGE OverloadedStrings #-}
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module Xmobar.Plugins.NetworkManager where
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import Control.Concurrent
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import Control.Monad
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import DBus
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import DBus.Client
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import DBus.Internal.Types
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import Xmobar
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newtype NetworkManager = NetworkManager (String, String, String)
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deriving (Read, Show)
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rule :: MatchRule
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rule = matchAny
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{ matchInterface = Just "org.freedesktop.NetworkManager.VPN.Connection"
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, matchMember = Just "VpnStateChanged"
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}
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-- TODO would polling be better for this? Using events means that we need
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-- to catch all of them perfectly to stay synchronized...which *might* happen
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instance Exec NetworkManager where
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alias (NetworkManager _) = "networkmanager"
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start (NetworkManager (text, colorOn, colorOff)) cb = do
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-- start (NetworkManager _) cb = do
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client <- connectSystem
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-- TODO initialize
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_ <- addMatch client rule $ cb . fmtState . getVPNState . signalBody
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forever (threadDelay 5000000)
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where
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getVPNState = \case
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[Variant (ValueAtom (AtomWord32 s)), _] -> Just s
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_ -> Nothing
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fmtState = \case
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-- state = 5 means VPN is connected
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Just s -> wrapColor text $ if s == 5 then colorOn else colorOff
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Nothing -> "N/A"
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wrapColor s c = "<fc=" ++ c ++ ">" ++ s ++ "</fc>"
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