diff options
Diffstat (limited to 'Operations.hs')
| -rw-r--r-- | Operations.hs | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/Operations.hs b/Operations.hs index d1bcad2..e03a4ae 100644 --- a/Operations.hs +++ b/Operations.hs @@ -338,34 +338,36 @@ data ChangeLayout = NextLayout | PrevLayout | JumpToLayout String instance Message ChangeLayout instance ReadableSomeLayout Window where - defaults = map snd defaultLayouts + defaults = SomeLayout (LayoutSelection defaultLayouts) : + SomeLayout Full : SomeLayout (Tall 1 0.1 0.5) : + SomeLayout (Mirror $ Tall 1 0.1 0.5) : defaultLayouts -data LayoutSelection a = LayoutSelection [(String, SomeLayout a)] +data LayoutSelection a = LayoutSelection [SomeLayout a] deriving ( Show, Read ) instance ReadableSomeLayout a => Layout LayoutSelection a where - doLayout (LayoutSelection ((n,l):ls)) r s = + doLayout (LayoutSelection (l:ls)) r s = do (x,ml') <- doLayout l r s - return (x, (\l' -> LayoutSelection ((n,l'):ls)) `fmap` ml') + return (x, (\l' -> LayoutSelection (l':ls)) `fmap` ml') doLayout (LayoutSelection []) r s = do (x,_) <- doLayout Full r s return (x,Nothing) -- respond to messages only when there's an actual choice: - modifyLayout (LayoutSelection ((n,l):ls@(_:_))) m + modifyLayout (LayoutSelection (l:ls@(_:_))) m | Just NextLayout <- fromMessage m = switchl rls | Just PrevLayout <- fromMessage m = switchl rls' | Just (JumpToLayout x) <- fromMessage m = switchl (j x) where rls (x:xs) = xs ++ [x] rls [] = [] rls' = reverse . rls . reverse - j s zs = case partition (\z -> s == fst z) zs of + j s zs = case partition (\z -> s == description z) zs of (xs,ys) -> xs++ys switchl f = do ml' <- modifyLayout l (SomeMessage Hide) - return $ Just (LayoutSelection $ f $ (n,fromMaybe l ml'):ls) + return $ Just (LayoutSelection $ f $ fromMaybe l ml':ls) -- otherwise, or if we don't understand the message, pass it along to the real -- layout: - modifyLayout (LayoutSelection ((n,l):ls)) m + modifyLayout (LayoutSelection (l:ls)) m = do ml' <- modifyLayout l m - return $ (\l' -> LayoutSelection ((n,l'):ls)) `fmap` ml' + return $ (\l' -> LayoutSelection (l':ls)) `fmap` ml' -- Unless there is no layout... modifyLayout (LayoutSelection []) _ = return Nothing -- @@ -404,6 +406,7 @@ instance Layout Tall a where 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 + description _ = "Tall" -- | Mirror a rectangle mirrorRect :: Rectangle -> Rectangle @@ -416,6 +419,7 @@ instance Layout l a => Layout (Mirror l) a where doLayout (Mirror l) r s = (map (second mirrorRect) *** fmap Mirror) `fmap` doLayout l (mirrorRect r) s modifyLayout (Mirror l) = fmap (fmap Mirror) . modifyLayout l + description (Mirror l) = "Mirror "++ description l -- | tile. Compute the positions for windows using the default 2 pane tiling algorithm. -- |