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

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{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE OverloadedStrings #-}
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module Xmobar.Plugins.VPN (VPN(..)) where
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import DBus
import DBus.Client
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import Xmobar
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import XMonad.Hooks.DynamicLog (xmobarColor)
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data VPN = VPN (String, String, String) Int
deriving (Read, Show)
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callConnectionType :: Client -> IO (Either MethodError Variant)
callConnectionType client =
getProperty client (methodCall "/org/freedesktop/NetworkManager"
"org.freedesktop.NetworkManager" "PrimaryConnectionType")
{ methodCallDestination = Just "org.freedesktop.NetworkManager" }
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instance Exec VPN where
alias (VPN _ _) = "vpn"
rate (VPN _ r) = r
run (VPN (text, colorOn, colorOff) _) = do
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client <- connectSystem
reply <- callConnectionType client
disconnect client
return $ fmtState $ procReply reply
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where
procReply = \case
Right r -> (fromVariant r :: Maybe String)
Left _ -> Nothing
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fmtState = \case
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Just s -> xmobarColor (if s == "vpn" then colorOn else colorOff) "" text
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Nothing -> "N/A"