Commit graph

201 commits

Author SHA1 Message Date
Andreas Hartmetz
de2b3a656f pointer out-parameters for functions in kdelibs/kdeui/util/kkeyserver_x11.cpp
svn path=/trunk/KDE/kdebase/workspace/; revision=646639
2007-03-26 11:30:18 +00:00
Luboš Luňák
8b5b40e4e8 Shadows. Right not it's only flat black rectangle, but otherwise
everything should work.


svn path=/branches/work/kwin_composite/; revision=646315
2007-03-25 10:48:07 +00:00
Luboš Luňák
f6ad1881e1 Support for window thumbnails.
svn path=/branches/work/kwin_composite/; revision=640344
2007-03-07 17:50:33 +00:00
Luboš Luňák
e61ecff9b9 Check that getting compositing pixmap of a window succeeded.
It may fail (or "fail") if the window is not mapped or if the geometry
doesn't match, both of which may happen due to the asynchronous
nature of X.


svn path=/branches/work/kwin_composite/; revision=637741
2007-02-27 16:13:34 +00:00
Philip Falkner
8299541652 Add build checks for XComposite, XDamage, XRender, OpenGL, and XShm.
KWin should now build and run with/without any or all of the above.

svn path=/branches/work/kwin_composite/; revision=633387
2007-02-13 23:28:36 +00:00
Luboš Luňák
a5e508590a I have a strange feeling nobody will be bothered enough to spend
time with non-composited minimize/shade animations.


svn path=/branches/work/kwin_composite/; revision=633222
2007-02-13 15:11:59 +00:00
Luboš Luňák
82c96c4bc7 Implement _NET_DESKTOP_LAYOUT.
svn path=/trunk/KDE/kdebase/workspace/; revision=633205
2007-02-13 14:09:23 +00:00
Philip Falkner
a71753e5cd Change effects->windowOpacityChanged to also pass the old opacity; thanks Lubos!
Clean up FadeEffect a bit, and make it replace FadeOut in the default effects list.

svn path=/branches/work/kwin_composite/; revision=633032
2007-02-12 23:14:50 +00:00
Luboš Luňák
4019dff500 Distinguish between damage and repaints - damage is when windows contents
change, repaint just triggers repaint of the area (without e.g. the texture
updating for OpenGL).
addDamage() -> addRepaint()
CCMAIL: kwin@kde.org


svn path=/branches/work/kwin_composite/; revision=632866
2007-02-12 15:22:43 +00:00
Philip Falkner
8d0f15e655 Hook up windowOpacityChanged for effects. Note that this only affects when the window opacity atom is changed; if an effect alters data.opacity in WindowPaintData, no notification will happen.
svn path=/branches/work/kwin_composite/; revision=632582
2007-02-11 17:38:56 +00:00
Luboš Luňák
24eacc4908 Move NETWinInfo and few more things from Client to the base class.
svn path=/branches/work/kwin_composite/; revision=632380
2007-02-10 21:56:24 +00:00
Luboš Luňák
6c9d910d7f Avoid decoration redraw delays. On resize Qt sets WA_WStateConfigPending
which delays all painting until a matching ConfigureNotify event comes.
But this process itself is the window manager, so it's not needed
to wait for that event, the geometry is known.
CCBUG: 134739


svn path=/branches/work/kwin_composite/; revision=632378
2007-02-10 21:55:00 +00:00
Luboš Luňák
77719858b0 Damage also the old area on geometry changes.
svn path=/branches/work/kwin_composite/; revision=628608
2007-01-30 16:52:05 +00:00
Luboš Luňák
7cb649edcb Tell scene about size changes.
svn path=/branches/work/kwin_composite/; revision=628606
2007-01-30 16:49:08 +00:00
Luboš Luňák
f9555cf69e Revert r427993 (#106013) as it causes #140023.
BUG: 140023


svn path=/trunk/KDE/kdebase/workspace/; revision=626731
2007-01-24 13:49:28 +00:00
Philip Falkner
e3cf0dd455 Move window_pix into Toplevel, allowing the backing pixmap to be kept even after a window is unmapped.
This is needed for effects to make use of unavailable windows, such as when closing a window.

svn path=/branches/work/kwin_composite/; revision=622777
2007-01-12 23:21:36 +00:00
Luboš Luňák
de4d1bc518 Implement cursorPos() as an optimized version of QCursor::pos()
that tries to reduce the number of X roundtrips.


svn path=/branches/work/kwin_composite/; revision=620326
2007-01-05 17:45:54 +00:00
Luboš Luňák
1765551277 Support for "input windows" that let effects intercept mouse events
when they e.g. want to let the user select from window thumbnails.


svn path=/branches/work/kwin_composite/; revision=620305
2007-01-05 16:45:56 +00:00
Luboš Luňák
2e84c74fc8 Functions also for converting from X11 mouse/keyboard state
to Qt mouse/keyboard state.


svn path=/branches/work/kwin_composite/; revision=620299
2007-01-05 16:32:32 +00:00
Luboš Luňák
ab8d845718 Reset compositing on XRandr changes to react on screen
size or refresh rate changes, patch by Philip Falkner.


svn path=/branches/work/kwin_composite/; revision=610114
2006-12-03 13:29:57 +00:00
Luboš Luňák
d426d9dcd4 Don't let the damage region be larger than the window,
prevent painting errors when shrinking a window.


svn path=/branches/work/kwin_composite/; revision=607510
2006-11-24 21:50:10 +00:00
Luboš Luňák
bb2299e00b Ignore if there are actually no geometry changes.
svn path=/branches/work/kwin_composite/; revision=605571
2006-11-17 09:19:58 +00:00
Luboš Luňák
43a945cd33 Fix finding the most recently raised window when updating mouse
grab for click raise (#137119).

And I think I'll have somewhen to fix all the tabs and other
horrible things porting has done to indentation.


svn path=/trunk/KDE/kdebase/workspace/; revision=605401
2006-11-16 16:56:16 +00:00
Luboš Luňák
3a0e22ebe3 Ok, with a compositing manager running, VisibilityNotify no longer
considers windows not visible just because a window is above them,
so the code from r198017 no longer works.
(#128648)


svn path=/trunk/KDE/kdebase/workspace/; revision=603295
2006-11-08 13:59:27 +00:00
Luboš Luňák
4110fc1c3a Support for XComposite overlay window.
svn path=/branches/work/kwin_composite/; revision=603137
2006-11-07 22:44:39 +00:00
Luboš Luňák
585678f309 Don't eat events for unmanaged windows, they may be kwin's
own widgets. Makes popups work.


svn path=/branches/work/kwin_composite/; revision=602429
2006-11-05 23:34:10 +00:00
Luboš Luňák
3f46d36bb9 Add convenience functions for damaging full area.
svn path=/branches/work/kwin_composite/; revision=598834
2006-10-24 19:28:17 +00:00
Luboš Luňák
b168c35384 Don't cache window pixmap, it's used only after it
changes.


svn path=/branches/work/kwin_composite/; revision=593453
2006-10-07 21:20:23 +00:00
Luboš Luňák
06203d0652 Don't bother with trying to transform window damage,
when there are any transformations, it should simply
repaint everything (todo).


svn path=/branches/work/kwin_composite/; revision=593450
2006-10-07 21:18:36 +00:00
Luboš Luňák
ace6b4ad8a Opengl support for shaped windows.
svn path=/branches/work/kwin_composite/; revision=590728
2006-09-30 17:28:27 +00:00
Luboš Luňák
649887d6c2 Looks like using XserverRegion for keeping damage regions
wasn't that good idea. Changed to QRegion.


svn path=/branches/work/kwin_composite/; revision=590648
2006-09-30 15:40:03 +00:00
Luboš Luňák
fa8cd7541f It wasn't a very good idea to do even compositing-unrelated
work in the work/kwin_composite branch.
svn merge revs 558154,558180,558236,558243,558258,562201


svn path=/trunk/KDE/kdebase/workspace/; revision=571776
2006-08-10 17:00:14 +00:00
Luboš Luňák
e24815411a Keep damage info separately for every window.
svn path=/branches/work/kwin_composite/; revision=561966
2006-07-13 18:17:49 +00:00
Luboš Luňák
0516e1e73b Add support for translation and add two "plugins" that
make windows transparent or shake them while moving.


svn path=/branches/work/kwin_composite/; revision=559013
2006-07-06 13:17:44 +00:00
Luboš Luňák
c7f515630d Support for transparency.
svn path=/branches/work/kwin_composite/; revision=558690
2006-07-05 20:52:57 +00:00
Luboš Luňák
f400646a6d xrender compositing work - now it uses damage areas
to reduce amount of painting


svn path=/branches/work/kwin_composite/; revision=558580
2006-07-05 16:04:11 +00:00
Luboš Luňák
dfe8968d8e Handle expose events for root window.
svn path=/branches/work/kwin_composite/; revision=558264
2006-07-04 23:46:02 +00:00
Luboš Luňák
571ba9cf9e Basic compositing support. It doesn't actually do anything
besides drawing what should be drawn anyway, and there are
still some things missing like stacking order for override
redirect windows, but KWin is basically a compositing manager now.


svn path=/branches/work/kwin_composite/; revision=558168
2006-07-04 20:02:07 +00:00
Luboš Luňák
e0dcc3ba46 Some convenience functions for QX11Info stuff.
svn path=/branches/work/kwin_composite/; revision=558154
2006-07-04 19:36:19 +00:00
Thorsten Roeder
d68dafda6b fixed some EBN issues
svn path=/trunk/KDE/kdebase/workspace/; revision=546993
2006-05-31 16:23:36 +00:00
Laurent Montel
5725624c8b #include <q...h> -> #include <Q...>
svn path=/trunk/KDE/kdebase/workspace/; revision=540496
2006-05-13 16:33:18 +00:00
Tobias Koenig
848bc14335 deprecated--
svn path=/trunk/KDE/kdebase/workspace/; revision=529106
2006-04-12 15:13:31 +00:00
Thorsten Roeder
98fa3320c5 deprecated--
basically:
QRegExp::search() --> QRegExp::indexIn()
QString::find() --> QString::indexOf()
QString::findRev() --> QString::lastIndexOf()
QString::lower() --> QString::toLower()
QString::upper() --> QString::toUpper()
QString::setLength() --> QString::resize()
QByteArray::find() --> QByteArray::indexOf()
QByteArray::findRev() --> QByteArray::lastIndexof()
QTimer::start(ms,sShot) --> {QTimer::setSingleShot() ; QTimer::start()}
QList::remove() --> QList::removeAll()
iterator QList::remove() --> iterator QList::erase()
QComboBox::text() --> QComboBox::itemText()
QByteArray::upper() --> QByteArray::toUpper()
QByteArray::lower() --> QByteArray::toLower()
QString::contains() --> QString::contains()
QEvent::accept(bool) --> QEvent::setAccepted(bool)


svn path=/trunk/KDE/kdebase/workspace/; revision=528719
2006-04-11 17:12:05 +00:00
Luboš Luňák
4d8462f579 Move minimized windows to the right place in focus chain.
(#124807)


svn path=/trunk/KDE/kdebase/workspace/; revision=528632
2006-04-11 14:52:27 +00:00
Luboš Luňák
5d1255dd73 Ok, I've had enough with Alt+Tab and mouse focus policies:
- use click to focus or focus follows mouse and I'll be fine
- with the remaining unreasonable focus policies only the CDE-style
  tabbox works that raises and lowers windows and ignores
  keep above/below windows
- if you don't like that, provide a patch for kwin/tabbox.cpp
- tabbox should be completely redesigned for KDE4
(#123890,#105263,#84424)


svn path=/trunk/KDE/kdebase/workspace/; revision=528579
2006-04-11 12:59:59 +00:00
Hamish Rodda
77bc9cd63d Merging in from bleeding edge kdebase branch
- i18n ported
- KAccel removed
- Some fixes for OS X

svn path=/trunk/KDE/kdebase/workspace/; revision=528190
2006-04-10 11:57:13 +00:00
Luboš Luňák
3c6af0ff28 Use a separate focus chain for each virtual desktop - this prevents onalldesktop
windows from usually getting focus after every virtual desktop switch.
Thanks for most of the work go to Guido Fiala <gfiala@s.netic.de>.
(#33701)


svn path=/trunk/KDE/kdebase/workspace/; revision=514057
2006-02-27 10:13:31 +00:00
Luboš Luňák
5d4876671f Revert r499346, seems to cause some trouble.
svn path=/trunk/KDE/kdebase/workspace/; revision=511621
2006-02-20 14:33:39 +00:00
Allen Winter
ae65a40c7a TRUE->true, FALSE->false
svn path=/trunk/KDE/kdebase/workspace/; revision=511180
2006-02-19 01:33:48 +00:00
Laurent Montel
0fa10f318d Deprecated--
svn path=/trunk/KDE/kdebase/workspace/; revision=506323
2006-02-06 14:47:18 +00:00
Luboš Luňák
7c6c0fec6e Workaround for #100117, already fixed in X.org CVS.
svn path=/trunk/KDE/kdebase/workspace/; revision=499346
2006-01-17 16:19:49 +00:00
Luboš Luňák
f383444490 Implement _NET_WM_MOVERESIZECANCEL.
svn path=/trunk/KDE/kdebase/workspace/; revision=494911
2006-01-06 15:20:46 +00:00
Laurent Montel
1c3e66488b Adapt to new kde4 api
Remove some qt3support

svn path=/trunk/KDE/kdebase/workspace/; revision=478902
2005-11-08 10:20:07 +00:00
Laurent Montel
0370410f0f qt3support--
svn path=/trunk/KDE/kdebase/workspace/; revision=474743
2005-10-27 09:07:06 +00:00
Stephan Kulow
b0c01d70a4 compile
svn path=/trunk/KDE/kdebase/khotkeys/; revision=473016
2005-10-22 12:05:06 +00:00
Stephan Kulow
6c821aba01 some more compiling
svn path=/trunk/KDE/kdebase/workspace/; revision=473006
2005-10-22 11:35:06 +00:00
Shaheed Haque
8d2e997ce3 Restore ability to compile against kdelib4_snapshot
svn path=/trunk/KDE/kdebase/workspace/; revision=460303
2005-09-13 10:14:32 +00:00
Caleb Tennis
393eeac4a0 Take advantage of the new KKeyNative functions per my commit #457838.
svn path=/trunk/KDE/kdebase/workspace/; revision=457839
2005-09-06 19:02:49 +00:00
Luboš Luňák
512fb17a95 Forward port of #108961.
svn path=/trunk/KDE/kdebase/kwin/; revision=442363
2005-08-02 13:25:20 +00:00
Stephan Kulow
b464518b3c svn merge svn+ssh://coolo@svn.kde.org/home/kde/trunk/KDE/kdebase@438057
svn+ssh://coolo@svn.kde.org/home/kde/branches/work/kde4/kdebase
          .

I couldn't resolve one kicker conflict that results from different
development directions, so I rely on Aaron to sort it out - the file
is commited with conflicts

svn path=/trunk/KDE/kdebase/kwin/; revision=439627
2005-07-28 14:59:42 +00:00
Luboš Luňák
170111c4e9 Find out what keys are mapped to Alt and Win modifiers instead of having it hardcoded.
I fail to see why anybody would want Alt bound to anything else
than Alt keys, but oh well.
BUG: 106013


svn path=/trunk/KDE/kdebase/kwin/; revision=427993
2005-06-22 15:44:24 +00:00
Luboš Luňák
96e1fdab6c Use KNotify for notifications about windows demanding attention.
People who use hidden Kicker, have their taskbar configured to show
only windows on the current desktop or similar now may configure
it so that windows that didn't get focus because of focus stealing
prevention now can not only have their taskbar entry marked
but there can be e.g. also a passive popup.


svn path=/trunk/KDE/kdebase/kwin/; revision=419727
2005-05-30 13:31:33 +00:00
Luboš Luňák
238586e608 It was necessary after all.
BUG: 72346


svn path=/trunk/KDE/kdebase/kwin/; revision=413125
2005-05-13 12:32:33 +00:00
Luboš Luňák
5722d3fac8 Implement _NET_SHOWING_DESKTOP, giving control of the 'show desktop'
feature to KWin. There shouldn't hopefully be any visible user
difference other than fixed bugs.
BUG: 78109
BUG: 99524


svn path=/trunk/KDE/kdebase/kwin/; revision=413066
2005-05-13 08:57:21 +00:00
Luboš Luňák
ced5ab580a Die, window type override, die! Since nobody really knows what this window
type means anyway, let's simply consider it to be a legacy way of saying "noborder"
and nothing more.


svn path=/trunk/KDE/kdebase/kwin/; revision=412372
2005-05-11 14:20:54 +00:00
Luboš Luňák
fc90a04635 Make it possible to do all kinds of strange things when mousewheeling
the titlebar or Alt+mousewheeling the window.
FEATURE:44318
FEATURE:66519
FEATURE:76188


svn path=/trunk/KDE/kdebase/kwin/; revision=410058
2005-05-06 15:20:49 +00:00
Luboš Luňák
9c34475e4e Make only left mouse on window borders move/resize windows.
BUG: 83378

svn path=/trunk/kdebase/kwin/; revision=408633
2005-04-29 15:14:10 +00:00
Thomas Lübking
8ad47028f6 Added composite (translucency/shadows) support
svn path=/trunk/kdebase/kwin/; revision=378790
2005-01-15 17:07:48 +00:00
Luboš Luňák
2d41d88fff This should fix some of the cannot-move-windows-after-being-logged-in-for-long-time
problems.

svn path=/trunk/kdebase/kwin/; revision=377222
2005-01-10 16:53:11 +00:00
Luboš Luňák
e3cd04c5de break missing.
svn path=/trunk/kdebase/kwin/; revision=372733
2004-12-22 13:00:59 +00:00
Luboš Luňák
5baf4a79c4 Try harder to restore focus if something sets it to null.
svn path=/trunk/kdebase/kwin/; revision=365079
2004-11-22 11:34:09 +00:00
Luboš Luňák
a2a55c8436 Make electric borders work also during DND. Blame David and George
for getting me in Santa Claus mood.
FEATURE:86998

svn path=/trunk/kdebase/kwin/; revision=361725
2004-11-09 15:38:33 +00:00
Luboš Luňák
053e2f669d Obey activation from Kicker etc. even with high focus stealing prevention
levels.
CCMAIL: 90733-done@bugs.kde.org

svn path=/trunk/kdebase/kwin/; revision=352123
2004-10-05 15:46:43 +00:00
Luboš Luňák
001646f3d8 Really fix MPlayer. It's nice to see people trust me and nobody has
actually tested MPlayer.

svn path=/trunk/kdebase/kwin/; revision=335441
2004-08-03 09:21:18 +00:00
Luboš Luňák
8033d09cce Dynamically detect changes of Motif hints instead of just reading
them once initially. At least MPlayer changes them while mapped.

svn path=/trunk/kdebase/kwin/; revision=333174
2004-07-27 08:35:51 +00:00
Luboš Luňák
58e12da8b7 #53420 - don't let normal windows go out of the workarea if they request
it.

svn path=/trunk/kdebase/kwin/; revision=329883
2004-07-16 11:25:07 +00:00
Luboš Luňák
6060ceb9eb Keep window role as lowercase, just like wmclass, for rules matching.
svn path=/trunk/kdebase/kwin/; revision=324251
2004-06-28 13:47:02 +00:00
Luboš Luňák
094befa1de Make it possible to have several rules matching one window.
svn path=/trunk/kdebase/kwin/; revision=321637
2004-06-18 08:57:42 +00:00
Luboš Luňák
8e09a9bc22 I guess I could finally find some time to work on things for 3.3.
Initial work on kwin rules, i.e. #36377 , per window specific settings.
So far only desktop/above/below work, no GUI, and settings from the old
'Save window settings' are ignored for now.

svn path=/trunk/kdebase/kwin/; revision=315446
2004-05-28 13:51:11 +00:00
Luboš Luňák
5632bb5129 Patch from Christopher J. Suleski (linux tildewave com) implementing #30426.
CCMAIL: 30426-done@bugs.kde.org

svn path=/trunk/kdebase/kwin/; revision=315341
2004-05-28 08:53:44 +00:00
Luboš Luňák
4952833028 Fix updateXTime() to make sure the X timestamp doesn't get newer than
timestamp of events still in the X events queue.
CCMAIL: 81693-done@bugs.kde.org

svn path=/trunk/kdebase/kwin/; revision=314035
2004-05-24 08:54:04 +00:00
Luboš Luňák
36a1cd4b18 Detect also X focus policy set to PointerRoot, and re-activate the active
window instead of setting focus to null focus window.
CCMAIL: 81145-done@bugs.kde.org

svn path=/trunk/kdebase/kwin/; revision=310051
2004-05-10 14:06:32 +00:00
Luboš Luňák
5da0e37909 Handle the case when there's actually no key for 4th modifier.
svn path=/trunk/kdebase/kwin/; revision=306807
2004-04-27 14:59:47 +00:00
Luboš Luňák
6d919922e2 Better implementation for ##36065.
svn path=/trunk/kdebase/kwin/; revision=305578
2004-04-22 12:30:57 +00:00
Luboš Luňák
f0fcba2d6d Oops, fix clickraise.
CCMAIL: 57111-done@bugs.kde.org

svn path=/trunk/kdebase/kwin/; revision=304929
2004-04-19 14:29:37 +00:00
Luboš Luňák
f701524d4e Experimental support for #36065 (dragging from a window shouldn't raise it).
Needs a Qt patch.

svn path=/trunk/kdebase/kwin/; revision=304194
2004-04-16 10:23:42 +00:00
Luboš Luňák
1f628f4a5b Support for timestamp in the window restack request.
svn path=/trunk/kdebase/kwin/; revision=304187
2004-04-16 09:43:53 +00:00
Luboš Luňák
a6adcb9056 Ignore FocusIn events for clients which were unmapped by kwin
but had got focus shortly before. Otherwise quick switching between
two virtual desktops with Konsoles can result in demand attention
state.

svn path=/trunk/kdebase/kwin/; revision=295169
2004-03-11 13:15:04 +00:00
Luboš Luňák
ff081c36a0 Fix #76394,
svn path=/trunk/kdebase/kwin/; revision=293762
2004-03-05 14:22:11 +00:00
Luboš Luňák
458573e997 Oops, clicking on the titlebar started drag, broken by last commit.
svn path=/trunk/kdebase/kwin/; revision=293758
2004-03-05 14:07:11 +00:00
Luboš Luňák
e329c3d872 Use a separate InputOnly window covering whole screen because it
reportedly improves move/resize performance on some systems
for some reason which I fail to see, but oh well.
(http://lists.kde.org/?t=107302193400001&r=1&w=2)

svn path=/trunk/kdebase/kwin/; revision=293755
2004-03-05 13:39:27 +00:00
Luboš Luňák
aa8f2d6607 Fix some focus stealing prevention problems when timestamp is not
explicitly specified.

svn path=/trunk/kdebase/kwin/; revision=293135
2004-03-02 16:43:29 +00:00
Luboš Luňák
d2e94b988e Watch properties also on the group leader window, for now only
the startup notification property, but it could be extended
to read icons etc. as well if needed (ICCCM 4.1.2.7).

svn path=/trunk/kdebase/kwin/; revision=291218
2004-02-25 09:51:47 +00:00
Luboš Luňák
53eefc6ed3 Before getting event about focus being set to None, really check if it's
still so before reseting it. Fixes problem with kview run from konsole,
set to fullscreen, set back to normal, closed -> konsole doesn't become
active.

svn path=/trunk/kdebase/kwin/; revision=290622
2004-02-23 17:09:47 +00:00
Peter Rockai
2eb784cf35 Support for NETWM partial struts (_NET_WM_STRUT_PARTIAL, we call them
extended here, ask Lubos why :>). This patch also includes workaround
for kicker (in its current state, without extended-strut support), so it
works in xinerama setups as expected. Thanks go to Lubos for help with
implementation and for review.

svn path=/trunk/kdebase/kwin/; revision=288758
2004-02-17 17:34:00 +00:00
Luboš Luňák
0c051481e9 Fix #74063 - if there's a restacking operation, cancel pending autoraise
for the window.

svn path=/trunk/kdebase/kwin/; revision=286801
2004-02-10 14:46:03 +00:00
Luboš Luňák
5f079f5e3d Fix for #67416 by Martin Koller + my grab code changes to get mouse
clicks even for the active window.

svn path=/trunk/kdebase/kwin/; revision=286702
2004-02-10 09:24:57 +00:00
Luboš Luňák
b525af029e Avoid sending synthetic configure notify events with user moving/resizing
when a real one will be sent.

svn path=/trunk/kdebase/kwin/; revision=284785
2004-02-03 15:18:15 +00:00
Luboš Luňák
10405ee978 Optimize MotionNotify discarding while moving/resizing.
svn path=/trunk/kdebase/kwin/; revision=284784
2004-02-03 15:16:58 +00:00
Luboš Luňák
e5d090ff4d When the X focus gets set to None, reset it to the null focus window,
so that keyboard shortcuts still work.

svn path=/trunk/kdebase/kwin/; revision=284489
2004-02-02 14:17:01 +00:00