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Diffstat (limited to 'XMonad/Actions/Submap.hs')
| -rw-r--r-- | XMonad/Actions/Submap.hs | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/XMonad/Actions/Submap.hs b/XMonad/Actions/Submap.hs new file mode 100644 index 0000000..98d44c6 --- /dev/null +++ b/XMonad/Actions/Submap.hs @@ -0,0 +1,71 @@ +----------------------------------------------------------------------------- +-- | +-- Module : XMonad.Actions.Submap +-- Copyright : (c) Jason Creighton <jcreigh@gmail.com> +-- License : BSD3-style (see LICENSE) +-- +-- Maintainer : Jason Creighton <jcreigh@gmail.com> +-- Stability : unstable +-- Portability : unportable +-- +-- A module that allows the user to create a sub-mapping of keys bindings. +-- +----------------------------------------------------------------------------- + +module XMonad.Actions.Submap ( + -- * Usage + -- $usage + submap + ) where + +import Control.Monad.Reader + +import XMonad +import XMonad.Operations (cleanMask) +import Graphics.X11.Xlib +import Graphics.X11.Xlib.Extras +import qualified Data.Map as M + +{- $usage +Allows you to create a sub-mapping of keys. Example: + +> , ((modMask, xK_a), submap . M.fromList $ +> [ ((0, xK_n), spawn "mpc next") +> , ((0, xK_p), spawn "mpc prev") +> , ((0, xK_z), spawn "mpc random") +> , ((0, xK_space), spawn "mpc toggle") +> ]) + +So, for example, to run 'spawn \"mpc next\"', you would hit mod-a (to trigger the +submapping) and then 'n' to run that action. (0 means \"no modifier\"). You are, +of course, free to use any combination of modifiers in the submapping. However, +anyModifier will not work, because that is a special value passed to XGrabKey() +and not an actual modifier. +-} + +-- %import XMonad.Actions.Submap +-- %keybind , ((modMask, xK_a), submap . M.fromList $ +-- %keybind [ ((0, xK_n), spawn "mpc next") +-- %keybind , ((0, xK_p), spawn "mpc prev") +-- %keybind , ((0, xK_z), spawn "mpc random") +-- %keybind , ((0, xK_space), spawn "mpc toggle") +-- %keybind ]) + +submap :: M.Map (KeyMask, KeySym) (X ()) -> X () +submap keys = do + XConf { theRoot = root, display = d } <- ask + + io $ grabKeyboard d root False grabModeAsync grabModeAsync currentTime + + (m, s) <- 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 return (m, keysym) + + io $ ungrabKeyboard d currentTime + + m' <- cleanMask m + whenJust (M.lookup (m', s) keys) id |