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-rw-r--r--XMonad/Config/CustomKeys.hs29
1 files changed, 20 insertions, 9 deletions
diff --git a/XMonad/Config/CustomKeys.hs b/XMonad/Config/CustomKeys.hs
index 8146af8..e86ce09 100644
--- a/XMonad/Config/CustomKeys.hs
+++ b/XMonad/Config/CustomKeys.hs
@@ -12,9 +12,10 @@
--------------------------------------------------------------------
module XMonad.Config.CustomKeys (
- -- * Usage
- -- $usage
- customKeys
+ -- * Usage
+ -- $usage
+ customKeys
+ , customKeysFrom
) where
import XMonad
@@ -46,16 +47,26 @@ import qualified Data.Map as M
-- > , ((mod1Mask, xK_Up ), spawn "amixer set Master 1+")
-- > ]
--- | XXX comment me (no tautology please)
-customKeys :: (XConfig Layout -> [(KeyMask, KeySym)]) -- ^ unused shortcuts
- -> (XConfig Layout -> [((KeyMask, KeySym), X ())]) -- ^ new bindings
+-- | Customize 'XMonad.Config.defaultConfig' -- delete needless
+-- shortcuts and insert the ones you use.
+customKeys :: (XConfig Layout -> [(KeyMask, KeySym)]) -- ^ shortcuts to delete
+ -> (XConfig Layout -> [((KeyMask, KeySym), X ())]) -- ^ key bindings to insert
-> XConfig Layout -> M.Map (KeyMask, KeySym) (X ())
-customKeys = (runReader .) . customize
+customKeys = customKeysFrom defaultConfig
-customize :: (XConfig Layout -> [(KeyMask, KeySym)])
+-- | General variant of 'customKeys': customize key bindings of
+-- third-party configuration.
+customKeysFrom :: XConfig l -- ^ original configuration
+ -> (XConfig Layout -> [(KeyMask, KeySym)]) -- ^ shortcuts to delete
+ -> (XConfig Layout -> [((KeyMask, KeySym), X ())]) -- ^ key bindings to insert
+ -> XConfig Layout -> M.Map (KeyMask, KeySym) (X ())
+customKeysFrom conf = (runReader .) . customize conf
+
+customize :: XConfig l
+ -> (XConfig Layout -> [(KeyMask, KeySym)])
-> (XConfig Layout -> [((KeyMask, KeySym), X ())])
-> Reader (XConfig Layout) (M.Map (KeyMask, KeySym) (X ()))
-customize ds is = Reader (keys defaultConfig) >>= delete ds >>= insert is
+customize conf ds is = Reader (keys conf) >>= delete ds >>= insert is
delete :: (MonadReader r m, Ord a) => (r -> [a]) -> M.Map a b -> m (M.Map a b)
delete dels kmap = asks dels >>= return . foldr M.delete kmap