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-rw-r--r--XMonad.hs14
1 files changed, 12 insertions, 2 deletions
diff --git a/XMonad.hs b/XMonad.hs
index 8e03d78..24c7899 100644
--- a/XMonad.hs
+++ b/XMonad.hs
@@ -15,7 +15,9 @@
--
module XMonad (
- X, WorkSpace, XState(..),runX, withDisplay, io, spawn, trace, whenJust
+ X, WorkSpace, XState(..),runX,
+ io, withDisplay, isRoot,
+ spawn, trace, whenJust
) where
import StackSet (StackSet)
@@ -49,11 +51,19 @@ newtype X a = X (StateT XState IO a)
runX :: XState -> X a -> IO ()
runX st (X a) = runStateT a st >> return ()
+-- ---------------------------------------------------------------------
+-- Convenient wrappers to state
+
-- | Run a monad action with the current display settings
withDisplay :: (Display -> X ()) -> X ()
withDisplay f = gets display >>= f
-------------------------------------------------------------------------
+-- | True if the given window is the root window
+isRoot :: Window -> X Bool
+isRoot w = liftM (w==) (gets theRoot)
+
+-- ---------------------------------------------------------------------
+-- Utilities
-- | Lift an IO action into the X monad
io :: IO a -> X a