tv: {2configs/xserver => 5pkgs}/xmonad-tv

1 files changed, 31 insertions, 0 deletions

diff --git a/tv/5pkgs/xmonad-tv/Util/Submap.hs b/tv/5pkgs/xmonad-tv/Util/Submap.hs
new file mode 100644
index 0000000..b09b97c
--- /dev/null
+++ b/tv/5pkgs/xmonad-tv/Util/Submap.hs
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+-- This module is based on Jason Creighton's XMonad.Actions.Submap
+
+module Util.Submap
+    ( submapString
+    ) where
+
+import Data.Bits
+import XMonad hiding (keys)
+import qualified Data.Map as M
+import Control.Monad.Fix (fix)
+
+
+-- | Like 'XMonad.Actions.Submap.submapDefault', but provides the looked up string to the default action.
+submapString :: (String -> X ()) -> M.Map (KeyMask, KeySym) (X ()) -> X ()
+submapString def keys = do
+    XConf { theRoot = root, display = d } <- ask
+
+    (m, s, str) <- io $ allocaXEvent $ \p -> fix $ \nextkey -> do
+        maskEvent d keyPressMask p
+        KeyEvent { ev_keycode = code, ev_state = m } <- getEvent p
+        keysym <- keycodeToKeysym d code 0
+        if isModifierKey keysym
+            then nextkey
+            else do
+                (mbKeysym, str) <- lookupString (asKeyEvent p)
+                return (m, keysym, str)
+
+    -- Remove num lock mask and Xkb group state bits
+    m' <- cleanMask $ m .&. ((1 `shiftL` 12) - 1)
+
+    maybe (def str) id (M.lookup (m', s) keys)