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-rw-r--r--Operations.hs25
1 files changed, 16 insertions, 9 deletions
diff --git a/Operations.hs b/Operations.hs
index c633292..6eff4be 100644
--- a/Operations.hs
+++ b/Operations.hs
@@ -18,7 +18,7 @@ import qualified StackSet as W
import {-# SOURCE #-} Config (borderWidth)
import Data.Maybe
-import Data.List (genericIndex)
+import Data.List (genericIndex, intersectBy)
import Data.Bits ((.|.))
import qualified Data.Map as M
@@ -65,13 +65,7 @@ shift n = withFocused hide >> windows (W.shift n)
-- | view. Change the current workspace to workspace at offset n (0 indexed).
view :: WorkspaceId -> X ()
-view n = withWorkspace $ \old -> when (n /= (W.tag (W.workspace (W.current old)))) $ do
- windows $ W.view n -- move in new workspace first, to avoid flicker
-
- -- Hide the old workspace if it is no longer visible
- oldWsNotVisible <- liftM (notElem (W.current old)) (gets (W.visible . windowset))
- when oldWsNotVisible $ mapM_ hide (W.index old)
- clearEnterEvents -- better clear any events from the old workspace
+view = windows . W.view
-- | Kill the currently focused client. If we do kill it, we'll get a
-- delete notify back from X.
@@ -95,7 +89,20 @@ kill = withDisplay $ \d -> withFocused $ \w -> do
-- | windows. Modify the current window list with a pure function, and refresh
windows :: (WindowSet -> WindowSet) -> X ()
-windows f = modify (\s -> s { windowset = f (windowset s) }) >> refresh
+windows f = do
+ oldws <- gets windowset
+ let news = f oldws
+ modify (\s -> s { windowset = news })
+ refresh
+ -- TODO: this requires too much mucking about with StackSet internals
+ mapM_ hide . concatMap (integrate . W.stack) $
+ intersectBy (\w x -> W.tag w == W.tag x) (map W.workspace $ W.current oldws : W.visible oldws) (W.hidden news)
+ -- intersection of previously visible with currently hidden
+ clearEnterEvents
+ where
+ -- TODO: move this into StackSet. This isn't exactly the usual integrate.
+ integrate W.Empty = []
+ integrate (W.Node x l r) = x : l ++ r
-- | hide. Hide a window by moving it off screen.
hide :: Window -> X ()