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{-# LANGUAGE DeriveGeneric #-}
------------------------------------------------------------------------------
-- |
-- Module: Xmobar.Text.SwaybarClicks
-- Copyright: (c) 2022 Jose Antonio Ortega Ruiz
-- License: BSD3-style (see LICENSE)
--
-- Maintainer: jao@gnu.org
-- Stability: unstable
-- Portability: portable
-- Created: Fri Feb 4, 2022 03:58
--
--
-- Handling of "click" events sent by swaybar via stdin
--
------------------------------------------------------------------------------
module Xmobar.Text.SwaybarClicks (startHandler) where
import Control.Monad (when)
import Data.Aeson
import GHC.Generics
import Xmobar.System.Utils (forkThread)
import Xmobar.Run.Actions (Action (..), runAction')
import Data.ByteString.Lazy.UTF8 (fromString)
data Click =
Click { name :: String , button :: Int } deriving (Eq,Show,Generic)
instance FromJSON Click
runClickAction :: Int -> Action -> IO ()
runClickAction b a@(Spawn bs _) =
when (fromIntegral b `elem` bs) (runAction' a)
handleClick :: Maybe Click -> IO ()
handleClick Nothing = return ()
handleClick (Just click) = do
let mas = read (name click) :: Maybe [Action]
b = button click
maybe (return ()) (mapM_ (runClickAction b)) mas
toClick :: String -> Maybe Click
toClick (',':s) = toClick s
toClick s = decode (fromString s)
readClicks :: IO ()
readClicks = getLine >>= handleClick . toClick >> readClicks
startHandler :: IO ()
startHandler = forkThread "Swaybar event handler" readClicks
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