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fix embarrassing bugs in LayoutModifier.

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This commit is contained in:
David Roundy
2007-09-24 19:57:26 +00:00
parent 5116847159
commit 3183254033
1 changed files with 2 additions and 2 deletions
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4
LayoutModifier.hs
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@@ -26,11 +26,11 @@ import Operations ( LayoutMessages(Hide) )
-- Use LayoutHelpers to help write easy Layouts.
class (Show (m a), Read (m a)) => LayoutModifier m a where
modifyModify :: m a -> SomeMessage -> X (Maybe (m l))
modifyModify :: m a -> SomeMessage -> X (Maybe (m a))
modifyModify m mess | Just Hide <- fromMessage mess = do unhook m; return Nothing
| otherwise = return Nothing
redoLayout :: m a -> Rectangle -> Stack a -> [(a, Rectangle)]
-> X ([(a, Rectangle)], Maybe (m l))
-> X ([(a, Rectangle)], Maybe (m a))
redoLayout m _ _ wrs = do hook m; return (wrs, Nothing)
hook :: m a -> X ()
hook _ = return ()