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X.L.LayoutHints: refresh only if hints are not satisfied

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This commit is contained in:
Tomas Janousek 2011-06-15 15:03:33 +00:00
parent 758094e4c7
commit 82dff7f91d
1 changed files with 13 additions and 3 deletions
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16
XMonad/Layout/LayoutHints.hs
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@ -25,7 +25,9 @@ module XMonad.Layout.LayoutHints
import XMonad(LayoutClass(runLayout), mkAdjust, Window, import XMonad(LayoutClass(runLayout), mkAdjust, Window,
Dimension, Position, Rectangle(Rectangle), D, Dimension, Position, Rectangle(Rectangle), D,
X, refresh, Event(..), propertyNotify, wM_NORMAL_HINTS) X, refresh, Event(..), propertyNotify, wM_NORMAL_HINTS,
(<&&>), io, applySizeHints, whenX, isClient, withDisplay,
getWindowAttributes, getWMNormalHints, WindowAttributes(..))
import qualified XMonad.StackSet as W import qualified XMonad.StackSet as W
import XMonad.Layout.Decoration(isInStack) import XMonad.Layout.Decoration(isInStack)
@ -249,8 +251,16 @@ centerPlacement' cf root assigned
-- | Event hook that refreshes the layout whenever a window changes its hints. -- | Event hook that refreshes the layout whenever a window changes its hints.
hintsEventHook :: Event -> X All hintsEventHook :: Event -> X All
hintsEventHook (PropertyEvent { ev_event_type = t, ev_atom = a }) hintsEventHook (PropertyEvent { ev_event_type = t, ev_atom = a, ev_window = w })
| t == propertyNotify && a == wM_NORMAL_HINTS = do | t == propertyNotify && a == wM_NORMAL_HINTS = do
refresh whenX (isClient w <&&> hintsMismatch w) $ refresh
return (All True) return (All True)
hintsEventHook _ = return (All True) hintsEventHook _ = return (All True)
-- | True if the window's current size does not satisfy its size hints.
hintsMismatch :: Window -> X Bool
hintsMismatch w = withDisplay $ \d -> io $ do
wa <- getWindowAttributes d w
sh <- getWMNormalHints d w
let dim = (fromIntegral $ wa_width wa, fromIntegral $ wa_height wa)
return $ dim /= applySizeHints 0 sh dim