dots-of-war/xmonad/.xmonad/lib/DescribedSubmap.hs

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2020-06-21 10:41:26 +00:00
{-# LANGUAGE FlexibleContexts #-}
{-# OPTIONS_GHC -fno-warn-missing-signatures -fno-warn-unused-binds #-}
module DescribedSubmap
( describedSubmap
)
where
import XMonad.Util.Run ( spawnPipe )
import XMonad.Util.EZConfig ( mkKeymap )
import XMonad
import XMonad.Actions.Submap ( submap )
import qualified System.IO as SysIO
describedSubmap :: String -> [(String, String, X ())] -> X ()
describedSubmap submapTitle mappings = do
conf <- asks config
let generatedSubmap =
submap $ mkKeymap conf $ map (\(k, _, a) -> (k, a)) mappings
promptDzenWhileRunning submapTitle descriptions generatedSubmap
where descriptions = map (\(k, desc, _) -> "<" ++ k ++ "> " ++ desc) mappings
-- | run a dzen prompt with the given title and lines for as long as the given `X` action is running
promptDzenWhileRunning :: String -> [String] -> X a -> X a
promptDzenWhileRunning promptTitle options action = do
handle <-
spawnPipe
$ "sleep 1 && dzen2 -e onstart=uncollapse -l "
++ lineCount
++ " -fn '"
++ font
++ "'"
io $ SysIO.hPutStrLn handle (unlines $ promptTitle : options)
result <- action
io $ SysIO.hClose handle
return result
where
lineCount = show $ length options
font = "-*-iosevka-medium-r-s*--16-87-*-*-*-*-iso10???-1"