Summary:
This fixes the following problem:
1. Have two windows maximized
2. Click minimize button on first window
3. Click minimize button on second window
What happened:
Second click was ignored as the pointer was not updated.
BUG: 378704
FIXED-IN: 5.11
Test Plan:
Nested KWin/Wayland, added two maximized windows, minimized
both without moving the mouse
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D8145
Summary:
The load method and updateLayout ensure the virtual desktop information
is synced to RootInfo and thus to other X11 applications. Thus we need
to call it again when initing X11.
BUG: 385260
Test Plan: Not tested as I'm on Wayland, but given the changes it's obvious.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D8086
Summary:
So far the method only operated on X11 clients. So when the last desktop
got removed Wayland clients were still on it. As the auto test showed:
this results in a crash.
Credits go to code coverage as it showed that area as red, which made me
look on it and realize this must be broken.
Test Plan: New test case added
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D8082
The operation mode X11 and Wayland is no longer supported and probably
hasn't been supported for the last few years. But now there is the
possibility to run Wayland only, so introduce this as a dedicated new
OperationMode.
Summary:
This is required to start KWin/Wayland without XWayland support or
delayed XWayland support.
Test Plan: Run kwin_x11 in a nested Xephyr
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7897
Summary:
The xStackingOrder unlike indicated by it's name is relevant for both
X11 and Wayland and contains the stacking order of the windows used for
compositing.
So far it was determined whether it needs to be recreated based on
whether an xcb query is pending. This change introduces a boolean
variable to check whether the stacking order is dirty and guards the X11
specific code to only be run if we have an X11 connection.
This is to my current knowledge the last remaining issue where X11 was
used during the normal Wayland operation mode. Now it should be possible
to re-order the Workspace startup [1] and try to run kwin_wayland without
Wayland support.
[1] Workspace::Workspace and Workspace::init is still highly X11
specific and needs to be split into X11 only and general parts.
Test Plan: Compiles
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7856
Summary:
The ObscurringWindows are a hack to make it more unlikely that the
desktop wallpaper becomes visible while switching desktops. This was
introduced in 2001 with SVN revision 90111
(git d194f74314).
In 2001 desktop switching was probably a costly action where it was not
possible to just reorder the desktop in one frame. Nowadays we use
mostly compositing and with compositing the ObscurringWindows are
already disabled. But even in the case that no compositing is used I
consider it as very unlikely that the desktop becomes visible during the
switching. Given that I think it's time to remove this legacy solution.
Test Plan: Compiles
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7965
Seems to have been used in old compositing kcm, documented as DBus API.
But Workspace doesn't expose a DBus interface anymore and our new DBus
interface does not call this method -> it is dead.
Summary:
The code ifdefed by ENABLE_TRANSIENCY_CHECK does no longer compile and
has not compiled since the switch to Qt 5 and KF5 as it still uses
kDebug and (worse) kDBacktrace. There are several other changes which
broke the code and I failed trying to get it to compile again. It's a
classic example of bitrot happening to code which is never getting
compiled.
As this has not been in a state which could compile for at least several
years, I think it's best to completely remove it.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7958
Summary:
Only needed for kwin_x11 variant (required for the non-composited
Outline). As that's nowadays in the x11 platform, we can move the
complete XRenderUtils support into the platform. Thus KWin core does
no longer require to link it.
Test Plan: Compiles
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7760
Summary:
Splits out the X11 specific window movement handling so that it's not
used in the Wayland case at runtime. As a nice side effect it
un-spaghetties the X11 event handler.
Test Plan:
Run nested KWin on Xephyr and nested KWin/Wayland to verify
that move/resize of X11 windows is still working
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7374
Summary:
There was a property change for whenever a window gets activated although
that doesn't change the state.
In addition a nullptr check for rootInfo is added for the future no
XWayland case.
Test Plan:
run xev -root to verify the property does not get updated
needlessly
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7097
Summary:
Workspace monitors the X11 events to detect when the user first
interacts with the system. This is only required on X11 for activating
the same client from previous session. So far this was spread over many
parts in the long event switch statement. To make this more contained a
dedicated event filter is introduced which also gets deleted again once
the first user interaction got recognized.
Test Plan: Compiles
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7371
Summary:
For a future XFree KWin. Only remaining not guarded usages are in
Workspace::init, but that one needs to be refactored anyway for
becoming X free.
Test Plan: Compiles
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7173
Summary:
Moves most of the implementation from Client to AbstractClient, so that
it can be used for both Client and ShellClient. Only the X11 specific
code is kept in Client.
Not yet implemented is updating the window caption.
Unfortunately the testing of this feature showed that setting a window
shortcut is not working on Wayland at all (the Qt widget doesn't properly
catch the shortcut). So this feature is currently only of erm theoretical
use.
Test Plan: Added new test case. No testing in real world as explained.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D6818
Summary:
This time without a test case that could trigger a crash as the only
reading usage of the variable could luckily not crash.
Reviewers: #plasma, #kwin
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D6853
Summary:
The last_active_client is set when an AbstractClient gets activated. For
the X11 case the last_active_client was getting reset to nullptr when
the last_active_client gets destroyed. But for the ShellClient that did
not yet happen. This could result in a crash.
This change addresses the problem and adds a test case which triggered
the crash. The condition of the crash are difficult to generate though -
it took me about an hour to write the test for the crash.
1. Wayland client must be active
2. Explicit focus to null (no active client)
3. destroy Wayland window
4. X11 client which sets focus on itself without interaction with window
manager
Test Plan: test case no longer crashes
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D6852
Introduce a method Workspace::markXStackingOrderAsDirty
Summary:
This method replaces the calls x_stacking_dirty = true in the code base
allowing for further refactoring of that functionality.
Remove roundtrip to XServer from Workspace::xStackingOrder
The method xStackingOrder is only used during a Compositor paint pass.
If the stacking order had changed, the method updated the stacking order
from X by performing a sync XQueryTree. With other words we had a round
trip to the X server directly in the paint pass.
This change rearchitectures this area by making better use of xcb. When
we notice that the stacking order changed and an XQueryTree is needed,
we directly send out the request. When xStackingOrder is finally called,
which normally happens a few milliseconds later, the reply is retreived.
In the worst case it still blocks, but in most cases the roundtrip is
gone.
If the stacking order changed again before accessing xStackingOrder the
running request is cancelled and a new request is issued. So whenever we
get into xStackingOrder it will have the current state.
The updating of the xStackingOrder is moved into a dedicated method and
xStackingOrder invokes it through a const_cast instead of operating on
mutable variables.
Test Plan: Normal system usage, no issues
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D6323
Summary:
Showing desktop requests focus on the desktop window. This means the
active window is reset. When ending showing desktop the state was not
restored.
This change addresses this problem by requesting focus to the best
window.
BUG: 375993
FIXED-IN: 5.10.4
Test Plan: New autotest and manual testing
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D6420
This brings back global menu support in KWin.
The DBusMenu infrastructure is different that we just read the DBus service name and
menu object path from the windows rather than passing around window IDs on DBus which
won't work on Wayland.
Differential Revision: https://phabricator.kde.org/D3089
Summary:
KWin always has a few internal windows around which are not visible.
A QWindow created somewhere, but not shown. Such windows should not
be part of the stacking order.
If they are it breaks code which looks at the top most window in the
stacking order like e.g. SlidebackEffect.
This change ensures that the stacking order gets updated whenever a
ShellClient gets hidden and that internal windows with isShown being
false are excluded from the stacking order.
BUG: 364483
Reviewers: #kwin, #plasma_on_wayland
Subscribers: plasma-devel, kwin
Tags: #plasma_on_wayland, #kwin
Differential Revision: https://phabricator.kde.org/D2636
Summary:
The restore geometry gets initially set to 0/0xsize before the placement
is done. When going into updateClientArea and then afterwards into
AbstractClient::checkWorkspacePosition the geometry restory is used for
calculating the new position. This results in windows getting moved to
0/0 when e.g. plugging in a new screen or a panel changes, etc.
This change ensures that the restore geometry is set correctly after the
first placement.
BUG: 366696
Reviewers: #kwin, #plasma_on_wayland, bshah
Subscribers: plasma-devel, kwin
Tags: #plasma_on_wayland, #kwin
Differential Revision: https://phabricator.kde.org/D2627
This allows finding the Toplevel for a QWindow which is on Wayland a
ShellClient and on X11 an Unmanaged. This can be used to simplify
code when a Toplevel is needed for an internal QWindow without having
to do platform specific checks.
For the exit-with-session option in kwin_wayland there is a chance that
the window which triggered termination is currently a Deleted. The
Wayland shutdown sequence terminates Workspace before the Compositor
which results in that Deleted's Scene::Window surviving the shutdown
process and thus the Shadow not being removed from the cache. This
makes KWin assert very late in the shutdown process when the decoration
shadow cache gets destroyed.
Summary:
With this change KWin can create window decorations for internal windows.
Thus it's also possible to move internal windows and resize them which is
especially important for the debug console.
Reviewers: #kwin, #plasma_on_wayland, sebas
Subscribers: plasma-devel, kwin
Tags: #plasma_on_wayland, #kwin
Differential Revision: https://phabricator.kde.org/D2371
Summary:
Rational: unredirect fullscreen windows is a weird beast. It's intended
to make fullscreen windows "faster" by not compositing that screen. But
that doesn't really work as KWin jumps out of that condition pretty
quickly. E.g. whenever a tooltip window is shown. KWin itself has a
better functionality by supporting to block compositing completely.
The complete code was full of hacks around it to try to ensure that
things don't break.
Overall unredirect fullscreen has always been the odd one. We had it
because a compositor needs to have it, but it never got truly integrated.
E.g. effects don't interact with it properly so that some things randomly
work, others don't. Will it trigger the screenedge, probably yes, but
will it show the highlight: properly no.
By removing the functionality we finally acknowledge that this mode is
not maintained and has not been maintained for years and that we do not
intend to support it better in future. Over the years we tried to make
it more and more hidden: it's disabled for Intel GPUs, because it used
to crash KWin. It's marked as an "expert" option, etc.
It's clearly something we tried to hide from the user that it exists.
For Wayland the whole unredirect infrastructure doesn't make sense
either. There is no such thing as "unredirecting". We might make use
of passing buffers directly to the underlying stack, but that will be
done automatically when we know it can be done, not by some magic is
this a window of specific size.
Test Plan:
Compiles, cannot really test as I am an Intel user who never
had that working.
Reviewers: #kwin, #plasma, #vdg
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D2180
Summary:
Have one dedicated method which performs the connection for both
Client and ShellClient. This fixes the desktopPresenceChanged signal
not being passed to the effects.
Note that not all signals are merged. Most signals setup for Client
don't make sense for ShellClient as ShellClient cannot block composite
or unredirect.
Test Plan:
Test case added for ShellClient to ensure that the signal
is correctly invoked on the ShellClient, Workspace and EffectsHandler.
Reviewers: #kwin, #plasma_on_wayland
Subscribers: plasma-devel, kwin
Tags: #plasma_on_wayland, #kwin
Differential Revision: https://phabricator.kde.org/D2059
Summary:
When a ShellClient gets unmapped and mapped again the signal windowShown
gets emitted. We need to handle this in Workspace to ensure the window
is in the proper layer and gets focus.
This fixes applications like KRunner/Yakuake not having focus on a
second show. Unfortunately it also brings back the problem that
notifiations steal focus (this needs to be fixed by passing a proper
window type to a notification).
Reviewers: #kwin, #plasma_on_wayland
Subscribers: plasma-devel, kwin
Tags: #plasma_on_wayland, #kwin
Differential Revision: https://phabricator.kde.org/D1864
Summary:
The method xRenderBlendPicture created a static XRenderPicture on
first usage. To cleanup a XRenderPicture an xcb_connection_t* is needed.
As it's static the cleanup happens on exit handler and at that time Qt
already destroyed the xcb_connection_t*. With a certain chance this will
crash.
To expose the problem a Q_ASSERT(qApp) is added in the destructor of
XRenderPicture. Using xrenderBlendPicture() will hit this assert on
application exit. This is demonstrated by the added auto test.
The actual fix to the problem is moving the static variable out of
the method and introduce a global cleanup method just like the init
method. This is now called from Workspace dtor, so before application
goes down.
CCBUG: 363251
Reviewers: #plasma
Subscribers: plasma-devel
Tags: #plasma
Differential Revision: https://phabricator.kde.org/D1731
Summary:
Client uses a static Xcb::Window helper. This so far didn't get
explicitly destroyed, so the application finalize cleaned it up.
To destroy the window the xcb_connection_t* is used which the
QGuiApplication already destroyed.
This change ensures that the window gets destroyed before the xcb
connection gets destroyed.
In addition an assert is added to KWin::connection() to ensure that
we still have the QGuiApplication::instance() when it's invoked.
This way we'll notice if we have more cases where we call into xcb
after the application went down.
Reviewers: #plasma
Subscribers: plasma-devel
Projects: #plasma
Differential Revision: https://phabricator.kde.org/D1573
This method is able to match a QWindow created by KWin to a Toplevel.
On X11 by matching winId against Unmanaged, on Wayland by matching
to internal window of ShellClient.
Finding the internal window is a commonly needed feature to e.g.
elevate the TabBox window.
All pointer related code is moved into a new class called
PointerInputRedirection.
The main idea is to simplify the code and make it easier to maintain.
Therefore also a few changes in the setup were performed:
* before init() is called, no processing is performed
* init() is only called on Wayland and after Workspace is created
* init property is set to false once Workspace or WaylandServer is
destroyed
Thus code can operate on the following assumptions:
* Workspace is valid
* WaylandServer is valid
* ScreenLocker integration is used
The various checks whether there is a waylandServer() and whether
there is a seat are no longer needed.
Some of the checks have been reordered to be faster in the most common
use case of using libinput. E.g. whether warping is supported is first
evaluated by the variable bound to whether we have libinput and only if
that is false the backend is checked.
The new class doesn't have signals but invokes the signals provided
by InputRedirection. I didn't want to add new signals as I consider
them as not needed. The areas in KWin needing those signals should
be ported to InputEventFilters.
If a ShellClient supports the ServerSideDecoration interface we can
create a server decoration for it. For that updateDecoration is added
as a pure virtual method in AbstractClient and a more-or-less code copy
from Client is added to ShellClient.
Geometry handling is adjusted to consider the window decoration offsets.
This change enables kactivities integration by default again on both
X11 and Wayland (as kactivities no longer blocks). As we have an
infrastructure to disable kactivities we can also make use of it and
offer a command line switch to disable kactivities. This might be
useful for using KWin outside of Plasma.
REVIEW: 126153
This is needed to make KWin build-able on non-Linux, but is actually
only a workaround. The dependency should also be available on non-Linux.
This disables the EGL integration in the Wayland backend (QPainter still
available) and the EGL fallback in the qpa plugin (preferred context
sharing still available, but requires a working OpenGL Scene).
REVIEW: 126202
We need to destroy the compositor after Xwayland terminated and after
the internal Wayland connection is destroyed. This means when destroying
the Workspace we may no longer destroy the Compositor at the same time.
Also we need to ensure that other tear down functionality doesn't call
into the no longer existing internal client connection.
With this change kwin doesn't crash when exiting with Wayland and/or
X11 windows still open.
So far it was bound to whether we build for GLES. But this is
semantically wrong. It might be possible that even on desktop gl
epoxy is built without GLX support, thus we need to reflect this.
This change ensures that epoxy/glx.h is only included if available,
that relevant code is bound to it and that checks are in place to
enforce EGL if not build with glx support.
In addtion the glxbackend.cpp is now only included in the build set
if available.
Similar to what we have in Client::manage we should not always
invoke the Placement algorithm. E.g. an initially fullscreened window
should not get placed.
This needs to be extended for more checks similar to Client::manage
and might indicate that we also need a ShellClient::manage.
REVIEW: 125469
Holds AbstractClients that is both X11 and Wayland clients. Allows
to easily change code which needs to operate on all clients to get
to them without needing special handling for Wayland clients. At the
same time we are still able to get to the windowing system specific
clients through the old clientList() and waylandServer()->clients().
AbstractClient::mainClients is virtual and overriden in Client,
allMainClients has only a common implementation in AbstractClient.
In activation.cpp we still need one case where a temporary ClientList
needs to be constructed. Once transients are fully migrated that should
be removable again.
This is a temporary workaround for bug 349992 which causes freezes
during startup as kwin and kamd dead lock each other on DBus.
To workaround we don't call Activities::create and check in every
usage of Activities::self() whether the pointer is valid.
As a result kwin_wayland now starts pretty fast.
CCBUG: 349992
The PlasmaShell interface allows to create a PlasmaShellSurface for a
given Surface. Through this interface the Surface can request:
* a specific position
* a window type
So far only the window types Normal, Panel and Desktop are supported
which is a sufficient subset for getting plasmashell to work.
In future there should be security checks so that only the dedicated
desktop shell can bind these interfaces.
A ShellClient can have window type dock. In that case it's considered to
have a strut. That is currently every panel restricts the area. On the
other hand only internal clients can be docks at the moment. For Plasma's
panels a dedicated interface will be needed.
We need XCB 1.10 for sync to work. Sync was optional with a version check
to make it work on build.kde.org. The CI system supports XCB 1.10 now, so
it's better to have it as a mandatory requirement.
When a ShellClient is added and it's not internal, it get placed just
like any other Client. This needs to happen after the initial size is
determined.
Please note: this breaks the positioning of popup windows (e.g. menus)
as they are placed like any other Client. This needs proper popup support
which right now does not yet exist and thus is not much difference to
before.
Adds all internal ShellClients into a dedicated list. This ensures that
we don't perform "normal" window management on them.
In addition we add them to the top of the stacking order. This restores
behavior as it is on X11: internal windows are using BypassWindowManagerHint
and thus on top of everything.
Windows that "belong" to the desktop are
kept visible and do no break the state on
activation/mapping
REVIEW: 123783
CCBUG: 346837
CCBUG: 346933
CCBUG: 347212
The signal might be emited by Workspace just before a Client gets
destroyed. In that case the argument carried by the queued event is no
longer valid and causes problems. In EffectsHandlerImpl we can queue
it without problems as the EffectWindow also stays valid if the Client
gets destroyed. The referenced Deleted gets destroyed with a deleteLater,
thus will be after the signal is emitted.
BUG: 347490
REVIEW: 123729
Moves the implmentation to AbstractClient. Methods are no longer virtual,
setActive calls a virtual protected method which is implemented in Client
for Client specific activation code.
As external interface it still returns Client* to not force the casts
to be done at usages. This will be changed once the users are migrated
to AbstractClient*.
The ShellClient is a Toplevel subclass for a
KWayland::Server::ShellSurfaceInterface. It gets created when a new
ShellSurfaceInterface is created and destoryed when it gets unmapped.
So far the usage is still rather limited. The ShellClient is opened
at position (0/0). While it's possible to pass pointer events to it,
it's not yet possible to activate it, so no keyboard focus.
The aim is to be able to create a plugin for each of the backends.
The following directories are created:
* backends/drm
* backends/fbdev
* backends/wayland
* backends/x11
Uses EGL_MESA_platform_gbm to get an EglDisplay from a gbm_device.
The DrmBackend can provide a DrmBuffer for a gbm_surface and present
it.
Unfortunately buffer age seems to be slightly broken and we still have
artefacts.
Introduces a new (optional) dependency: libdrm.
The DrmBackend currently supports finding the first connected output.
It can create shared memory buffers which are used by SceneQPainter to
do double buffered rendering.
There is still lots to do, the following things are not yet working:
* multiple outputs
* page flip
* OpenGL (through gbm)
* restoring mode setting to start value
This is an alternative approach suggested by the
NETWM spec.
The advantage is, that windows are not minimized
at all what apparently lead to some confusion
about the nature of the mode (which was abused
to tidy up) and a secret config key to allow for
that unrelated behavior.
Instead the ShowDesktopIsMinimizeAll key is removed
and replaced by a dedicated script + shortcut.
Bonus: less code to remember "minimized" windows =)
* Vendor name
* Vendor release
* Protocol version
* All Extensions used by KWin (name, present and version)
Need for this recognized due to a bug related to no xrandr present.
CCBUG: 345448
We released three versions with it being disabled and it doesn't look
like it will come back any time soon. Also the build was broken at least
since the repo splitting due to incorrect path to dbus xml.
In addition the connection to decorations got dropped already with the
change to kdecoration2. Which means it anyway needs large adjustements
to get the code working again.
Overall it doesn't look like it makes lots of sense to keep the code
around for someone working on it in future. If that happens this change
can be reverted.
For Xwayland we need to have the Scene (and EglDisplay) created prior
to starting Xwayland and having X11. This requires creating the
Compositor before creating Workspace and starting Xwayland.
To support this the startup of Compositor is split into two parts:
prior and after Workspace creation.
The change might also be interesting for the kwin_x11 case as it could
result in the compositor being up in a quicker way.
The --xwayland option starts a rootles Xwayland server. If a
rootless Xwayland server is used OperationModeXwayland is used
which is introduced with this change as well.
Add QT_VERSION_STR in addition to qVersion(). This could be useful
to see whether the runtime version is different to the Qt version
used at compile time.
Also adds the XCB_VERSION_STRING which is used at compile time.
This is useful as for example XCB::SYNC was broken prior to 1.10.
REVIEW: 122375
The build option got introduced for Plasma Active back in a time
when we did not properly aim for convergence. In a Plasma 5 world
we want to have only one shell and one window manager which adjust
itself. This means we don't want a differently compiled kwin for
plasma active, but the same one. Thus the build option doesn't
make much sense any more. A KWin for touch interface needs to support
screenedges for the case that mouse is plugged in.
CCBUG: 340960
REVIEW: 121200
* Aurorae needs to pass QVariantList args to parent Decoration
* DecorationBridge implementation needs to be a KWIN_SINGLETON
* DecorationBridge needs to be passed with args to created Decoration
With libinput we have the problem that we need to have privileges to
open the device files. In order to not need wrappers or suid bits, we
use logind. This means that kwin_wayland has to be the session controler.
A LogindIntegration is added to connect to logind and wrap the dbus
calls. This is based on the logind integration done for ksld in
ksmserver. The LogindIntegration is started by Workspace and the
InputRedirection tries to become the session controller and starts the
libinput integration only after this succeeded.
NOTE: this is not working completely yet, lots of code is still ifdefed
other parts are still broken.
The main difference for the new decoration API is that it is neither
QWidget nor QWindow based. It's just a QObject which processes input
events and has a paint method to render the decoration. This means all
the workarounds for the QWidget interception are removed. Also the paint
redirector is removed. Instead each compositor has now its own renderer
which can be optimized for the specific case. E.g. the OpenGL compositor
renders to a scratch image which gets copied into the combined texture,
the XRender compositor copies into the XPixmaps.
Input events are also changed. The events are composed into QMouseEvents
and passed through the decoration, which might accept them. If they are
not accpted we assume that it's a press on the decoration area allowing
us to resize/move the window. Input events are not completely working
yet, e.g. wheel events are not yet processed and double click on deco
is not yet working.
Overall KDecoration2 is way more stateful and KWin core needs more
adjustments for it. E.g. borders are allowed to be disabled at any time.
Since the KActivities library now keeps an internal cache (and is
non-blocking), there is no point in thread-based information
fetching.
BUG: 335396
REVIEW: 118443
So far the Unmanaged got released after an XCB_UNMAP_NOTIFY. This event
gets created after xcb_unmap_window or after xcb_destroy_window. In the
latter case the window is already distroyed and any of KWin's cleanup
calls will cause a BadWindow (or similar) error.
The idea to circumvent these errors is to try to wait for the
DESTROY_NOTIFY event. To do so the processing of the release is slightly
delayed. If KWin gets the destroy notify before the delay times out the
Unamanged gets released immediately but with a Destroy flag. For this a
new enum ReleaseToplevel is introduced and Unmanage::release takes this
as an argument instead of the bool which indicated OnShutdown. Also this
enum is added to Toplevel::finishCompositing so that it can ignore the
destroyed case and not generate an error.
REVIEW: 117422
Adding a const variant for ::data() to remove an unexpected copy.
To complete also the bool cast operator and isNull get a const
variant.
REVIEW: 117469
XRenderUtils used connection() and rootWindow() provided by kwinglobals.
Those are now kept as static variables in the implementation set through
an init() method from Workspace prior to the first possible usage of any
functionality provided by XRenderUtils.
In order to make the xcb_connection_t* and the root window completely
internal the inline methods which used those are moved to the
implementation.
Instead of passing the macro based Predicate to findClient it now
expects a function which can be passed to std::find_if.
Existing code like:
xcb_window_t window; // our test window
Client *c = findClient(WindowMatchPredicated(window));
becomes:
Client *c = findClient([window](const Client *c) {
return c->window() == window;
});
The advantage is that it is way more flexible and has the logic what
to check for directly with the code and not hidden in the macro
definition.
In addition there is a simplified overload for the very common case of
matching a window id against one of Client's windows. This overloaded
method takes a Predicate and the window id.
Above example becomes:
Client *c = findClient(Predicate::WindowMatch, w);
Existing code is migrated to use the simplified method taking
MatchPredicate and window id. The very few cases where a more complex
condition is tested the lambda function is used. As these are very
local tests only used in one function it's not worthwhile to add further
overloads to the findClient method in Workspace.
With this change all the Predicate macro definitions are removed from
utils.h as they are now completely unused.
REVIEW: 116916
Instead of passing the macro based Predicate to findUnmanaged it now
expects a function which can be passed to std::find_if.
Existing code like:
xcb_window_t window; // our test window
Unmanaged *u = findUnmanaged(WindowMatchPredicated(window));
becomes:
Unmanaged *u = findUnmanaged([window](const Unmanaged *u) {
return u->window() == window;
});
In addition an overload is added which takes the window id to cover
the common case to search for an Unmanaged by its ID. The above example
becomes:
Unmanaged *u = findUnmanaged(window);
The advantage is that it is way more flexible and has the logic what
to check for directly with the code and not hidden in the macro
definition.
As can be seen in [1] the patches to KWin were in CVS HEAD before the
protocol got standardized and it never got any adoption. It's neither in
the NETWM spec, nor implemented in Qt4 nor in Qt5. KWin did not even add
the protocol to the NET::Supported property.
Thus it doesn't make much sense to keep a protocol which nobody speaks.
Still the code around the protocol is kept and also the names are kept.
Only difference is that Client::takeActivity got removed and the code
moved to the only calling place in Workspace. Motivated by that change
the enum defined in utils.h is moved into Workspace, it's turned into
a proper QFlags class and used as a type in the method argument instead
of a generic long.
[1] https://mail.gnome.org/archives/wm-spec-list/2004-April/msg00013.html
REVIEW: 116922
InputRedirection keeps track of the Toplevel which is currently the one
which should get pointer events. This is determined by checking whether
there is an Unmanaged or a Client at the pointer position. At the moment
this is still slightly incorrect, e.g. pointer grabs are ignored,
unmanaged are not checked whether they are output only and input shapes
are not yet tracked.
The pointer events are delivered to the Toplevel as:
* enter
* leave
* move
* button press
* axis event
Nevertheless move events are still generated in InputRedirection through
xcb test for simplicity. They are still send to the root window, so all
windows get mouse move.
Button press and axis are generated only in the implementations of the
event handlers and delivered directly to the window, so other windows
won't see it.
New inheriting class which uses the InputRedirection to track the cursor
position. It doesn't support warping of cursor.
This introduces a slight dependency loop in the startup. Cursor needs to
be created after the WaylandBackend to ensure that the operation mode is
set correctly. But the WaylandBackend itself is accessing Cursor. It
should be safe as inside the WaylandBackend it's only accessed after
callbacks.
So far this new class is not yet doing much. The WaylandBackend forwards
the received pointer events to this InputRedirection class. From there
signals are emitted to inform internal areas about the changes first.
The events are currently forwarded to X through the xtest extension. This
will be removed in future. Input will be forwarded directly to the
surface which wants it (no matter whether X11 or Wayland).
