add pureMessage.

darcs-hash:20071005140553-72aca-aa462a597c08ff1f9309985a0f3403d5023bc975

1 files changed, 2 insertions, 3 deletions

diff --git a/Operations.hs b/Operations.hs
index 62e007c..36f82e9 100644
--- a/Operations.hs
+++ b/Operations.hs
@@ -423,9 +423,8 @@ instance LayoutClass Tall a where
     doLayout (Tall nmaster _ frac) r =
         return . (\x->(x,Nothing)) .
         ap zip (tile frac r nmaster . length) . W.integrate
-    handleMessage (Tall nmaster delta frac) m =
-        return $ msum [fmap resize (fromMessage m)
-                      ,fmap incmastern (fromMessage m)]
+    pureMessage (Tall nmaster delta frac) m = msum [fmap resize (fromMessage m)
+                                                   ,fmap incmastern (fromMessage m)]
         where resize Shrink = Tall nmaster delta (max 0 $ frac-delta)
               resize Expand = Tall nmaster delta (min 1 $ frac+delta)
               incmastern (IncMasterN d) = Tall (max 0 (nmaster+d)) delta frac