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Operations.screenWorkspace: return Nothing when the screen does not exist

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Spencer Janssen
2007-07-07 22:38:42 +00:00
parent a48ec57cd9
commit bfd638d818
2 changed files with 4 additions and 4 deletions
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2
Config.hs
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@@ -163,7 +163,7 @@ keys = M.fromList $
-- mod-{w,e,r} @@ Switch to physical/Xinerama screens 1, 2, or 3
-- mod-shift-{w,e,r} @@ Move client to screen 1, 2, or 3
++
[((m .|. modMask, key), screenWorkspace sc >>= f)
[((m .|. modMask, key), screenWorkspace sc >>= flip whenJust f)
| (key, sc) <- zip [xK_w, xK_e, xK_r] [0..]
, (f, m) <- [(view, 0), (shift, shiftMask)]]

6
Operations.hs
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@@ -439,9 +439,9 @@ splitVerticallyBy f = (mirrorRect *** mirrorRect) . splitHorizontallyBy f . mirr
------------------------------------------------------------------------
-- Utilities
-- | Return workspace visible on screen 'sc', or 0.
screenWorkspace :: ScreenId -> X WorkspaceId
screenWorkspace sc = withWindowSet $ return . fromMaybe 0 . W.lookupWorkspace sc
-- | Return workspace visible on screen 'sc', or Nothing.
screenWorkspace :: ScreenId -> X (Maybe WorkspaceId)
screenWorkspace sc = withWindowSet $ return . W.lookupWorkspace sc
-- | Apply an X operation to the currently focused window, if there is one.
withFocused :: (Window -> X ()) -> X ()