Commit graph

59 commits

Author SHA1 Message Date
Martin Flöser
a0b482cbab Introduce a command line option to disable any kind of global shortcuts
Summary:
This command line option is useful for KWin in embedded use case. That
is when KWin is just used as a compositor for one application instead of
a complete desktop environment. In such a setup global shortcuts are not
wanted and interfere with the application. E.g. one does not want Alt+F4
to close the window, that would render the system unusable.

This change introduces a command line option and disables the following
event filters and spies:
 * global shortcuts
 * modifier only shortcuts
 * terminate session
 * virtual terminal switching
 * screen edges

KGlobalAccel still gets inited, otherwise the (non-functional) binary
would be launched when KWin registers it's global shortcuts.

Test Plan:
New test added based on existing tests for the global
shortcuts, ctest passes

Reviewers: #kwin

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D17304
2018-12-13 19:36:28 +01:00
Martin Flöser
e637d43211 Remove potential endless loop from XClipboardSyncTest
Summary:
We need to wait till the helper process created the datadevice. For this
we used a while loop. On build.kde.org the test gets stuck in this loop
and times out after 10 minutes.

This change introduces a dedicated signal and we just wait for it. So if
something fails we wait only 5 sec instead of endless. This should help
investigate why the test doesn't work on build.kde.org.

Test Plan: Test works locally

Reviewers: #kwin

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D16741
2018-11-07 20:10:32 +01:00
David Edmundson
7e8facc3fd [wayland] Use the new plasma virtual desktop protocol
Summary:
implement virtual desktop support for Wayland.
use the new virtual desktop protocol from D12820
The VirtualDesktopManager class needed some big change in order
to accomodate it, which is where most changes are.
Other than that, it's mostly connections to wire up
VirtualDesktopsManager and VirtualDesktopsManagement(the wayland protocol impl)

Depends on D12820
Other notable detail, is the client visibility updated to reflect the presence
of the client in the plasmavirtualdesktop.
(and the unSetDesktop concept)

Test Plan: used a bit a plasma session together with D12820, D13748 and D13746

Reviewers: #plasma, #kwin, graesslin, davidedmundson

Reviewed By: #plasma, #kwin, davidedmundson

Subscribers: hein, zzag, davidedmundson, kwin

Tags: #kwin

Maniphest Tasks: T4457

Differential Revision: https://phabricator.kde.org/D13887
2018-11-01 16:35:29 +01:00
David Edmundson
fcf9acfec5 Add XDG WmBase support
Test Plan:
Compiled latest GTK
Ran gtk4-demo and used WAYLAND_DEBUG to confirm it used the correct
shell
tested a top level and a popup

Reviewers: #plasma, romangg

Reviewed By: #plasma, romangg

Subscribers: romangg, mart, graesslin, zzag, kwin

Tags: #kwin
BUG: 398614
FIXED-IN: 5.15.0

Differential Revision: https://phabricator.kde.org/D13530
2018-09-14 12:18:47 +01:00
David Edmundson
1403fcf316 Add XDG Output support
Test Plan:
Very minimal expansion of unit tests which uses WaylandScreens
Wrote mini app to debug actual output of xdg-output for testing the DRM code

Main relevant user of this is xwayland > 1.20 which I don't have, so that
part remains untested

Reviewers: #plasma, graesslin

Reviewed By: #plasma, graesslin

Subscribers: romangg, graesslin, bshah, kwin

Tags: #kwin

Maniphest Tasks: T8501

Differential Revision: https://phabricator.kde.org/D12243
2018-05-18 14:16:13 +01:00
Martin Flöser
b002b27903 Simulate user activity on fake input events
Summary:
This ensures that using KDE Connect to control input properly inhibits
idle timeouts.

Reviewers: #kwin, #plasma

Subscribers: plasma-devel, kwin

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D9555
2018-01-10 17:43:42 +01:00
David Edmundson
01d6878dc2 Add explicit protocol for colour scheme management
Summary:
To replace the deprecated/broken qt extended surface

BUG: 385214

Test Plan: Ran test in plasma-integration

Reviewers: #plasma, graesslin

Reviewed By: #plasma, graesslin

Subscribers: plasma-devel, kwin, #kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D9660
2018-01-04 18:32:18 +00:00
David Edmundson
ee28104c7a Port to new AppMenu iface
Plus test

Test Plan:
Ran kwin with menus and patched QPT
Ran test

Reviewers: graesslin

Reviewed By: graesslin

Subscribers: graesslin, kwin, #kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D9262
2017-12-22 14:38:31 +00:00
Marco Martin
735fcc6e95 Make use of foreign protocol
Summary:
not sure if that is the right "parent" that has
to be set, set the transient for surfaces that
have setParentOf of an imported set

Test Plan:
m_XdgForeign->transientFor(surface()) finds the surface is expected,
not sure how to test it further

Reviewers: #plasma, graesslin

Reviewed By: #plasma, graesslin

Subscribers: luebking, graesslin, davidedmundson, plasma-devel, kwin, #kwin

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D7521
2017-10-13 11:32:22 +02:00
Martin Flöser
4c334098f3 Ensure internal Wayland connection is properly setup before creating LockScreen integration
With the new Wayland only mode we start too fast and it can happen that
the initWithWorkspace is called before the client connection is fully
setup. This would result in a crash in the idletime plugin once it tries
to create a seat.

To prevent this problem the code is split out into a dedicated method
and only invoked if all interfaces have been announced on the internal
connection.
2017-09-30 16:33:45 +02:00
David Edmundson
e492f9e298 XdgV6 - Kwin side
Summary:
Adds XDGV6 support for the kwin side.

Popup placement support is limited to the stuff v5 had,
a simple offset, rather than the awesome new positioner.

But Qt doesn't make use of it yet either.
Also ideally we should do all the positioning before sending the first
configure, but again Qt doesn't actually do anything with that anyway.

Also integrate pinging clients

Test Plan: gtk3-demo  works nicely.

Reviewers: #plasma, graesslin, mart

Reviewed By: #plasma, graesslin

Subscribers: mart, graesslin, kwin, plasma-devel, #kwin

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D6591
2017-09-25 16:47:30 +01:00
Martin Gräßlin
8edd0336e6 Support creation of PlasmaShellSurface prior to ShellSurface
Summary:
So far KWin did not support the sequence:
1. Create wl_shell
2. Create PlasmaShellSurface
3. Create wl_shell_surface

KWin only supported the case that the PlasmaShellSurface is the last
thing to get created. This is rather limiting and can be considered a
bug. At least we had a QEXPECT_FAIL auto test for this situation. So
it was a known issue.

This change should make it easier to support the QtWayland changes in
Qt 5.8.

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D4482
2017-02-07 19:26:36 +01:00
Martin Gräßlin
a7f5c16754 Reduce code-duplication of socketpair in WaylandServer
Summary:
WaylandServer creates a socketpair for several Wayland connections. So
far this duplicated code quite a bit.

This change introduces one method to perform the socketpair and the
error checking plus creating the server side ClientConnection from the
pair.

Test Plan: Tests still pass

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D3576
2016-12-17 09:47:55 +01:00
Martin Gräßlin
455c5c07a0 Move implementation of iconGeometry from ShellClient to AbstractClient
Summary:
This allows Client to use the Wayland-specific implementation if there
is no icon geometry set through the X11 way. That way Xwayland windows
have an icon geometry even if Plasma is using Wayland and setting the
icon geometry in the Wayland way. Which is expected as Plasma is
ignorant about the windowing system a PlasmaWindow uses.

In order to move the code from ShellClient to AbstractClient
WaylandServer gained a new findAbstractClient(Surface*) method which
is just like findClient(Surface*) with the difference that it returns
an AbstractClient instead of a ShellClient*.

Test Plan:
minimized/unminimized an X client on Wayland, verified
animation is correct (though broken in general for minimize)

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D2530
2016-08-24 13:11:32 +02:00
Martin Gräßlin
697ea3ae00 Delay query whether screenlocker is registered till WaylandServer is initialized
If we try to query before WaylandServer created the KSldApp the service
owner change is never delivered. Thus a delay till we know that the
service is there on Wayland. On X11 the initialization can be done
directly.

To know when the WaylandServer is fully initialized an additional
signal is added to WaylandServer.
2016-08-16 10:17:14 +02:00
Martin Gräßlin
d0c488f4a2 Announce output changes to Wayland for platforms not handling outputs
Summary:
Most platforms like the nested and virtual do not handle the outputs
themselves and WaylandServer announces the Outputs to Wayland.

So far this was static: at startup it got announced once to Wayland
and any changes were not catched.

This change makes WaylandServer listen to changes to the Screens and
sync them to Wayland.

Unfortunately KWin's internal Screen information is not sufficient to
properly synchronize this to Wayland and also Wayland by not supporting
adding/removing modes does not help.

Thus the solution implemented here is to add new outputs reflecting the
changes and then removing the old ones. This creates situations with more
outputs being present than actually there, but prevents that there are
no outputs at all.

Test Plan: Auto test added which verifies this for the virtual platform

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D2233
2016-07-20 13:53:02 +02:00
Martin Gräßlin
c3af4c3f9c Add support for xdg-shell version 5 interface
Summary:
The WaylandServer creates the XdgShellV5 interface and hooks it up
to create a ShellSurface whenever an xdg surface or xdg popup is created.

ShellClient gains some new ctors for the different variants and is
adjusted to delegate to xdg surface respectively.

With this change KWin mostly supports xdg-shell protocol. Still missing
is support for the "geometry" request which is rather difficult to
implement in KWin.

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D2108
2016-07-13 13:20:00 +02:00
Martin Gräßlin
3c04d5295d Handle situation of no XDG_RUNTIME_DIR gracefully
Summary:
If KWin fails to start the Wayland server due to XDG_RUNTIME_DIR not
being set, kwin_wayland should terminate with an error condition but
not crash.

This change makes sure that KWin detects that the Wayland server does
not work and terminates the startup early and ensures that it doesn't
crash while going down.

An error message is shown that we could not create the Wayland server.

Test Plan:
Test case added which verifies that WaylandServer fails to
init. Manual testing that kwin_wayland exits with error 1.

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D2078
2016-07-13 10:00:46 +02:00
Martin Gräßlin
3493e97655 Support for syncing the clipboard from X11 to Wayland and vice versa
Summary:
The clipboard sync is done by a dedicated helper binary launched by
KWin. This helper binary is forced to xcb platform to piggy-back on
Qt's implementation of the X11 clipboard. In addition it implements
the Wayland clipboard - which is much simpler. Reading the Wayland
clipboard is based on the implementation in QtWayland.

KWin internally knows the DataDeviceInterface belonging to the helper
application. Whenever an xwayland client is focussed, this DataDevice
is allowed to set the selection and KWin manually updates the current
selection in the SeatInterface. By that the sync from X11 to Wayland
is implemented. When afterwards a Wayland client is selected, it's sent
the current selection which references the X clipboard and a data
transfer can be initiated in the normal Wayland way.

For the other direction KWin sends the current selection to the helper's
DataDevice whenever an xwayland window is focused. The helper application
reads the Wayland clipboard and sets it on the X11 clipboard. Thus the
Wayland clipboard is synced to X11.

The approach used here will also be useful for implementing a clipboard
manager (aka klipper).

Currently the implementation is not yet fully completed. We need to
make sure that the helper application gets restarted in case of a crash.

Test Plan: See added test case

Reviewers: #plasma_on_wayland, #kwin

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D1973
2016-06-29 09:03:40 +02:00
Martin Gräßlin
c7828eab8f Ensure that WaylandServer::shellClientAdded only gets emitted once
Summary:
When a shell client got mapped, unmapped and mapped again we emitted
the shellClientAdded signal in WaylandServer again. This resulted in
e.g. Workspace, EffectsHandler, etc. to start managing the window again.
This can be a reason for problems we see with such windows like the
Plasma panel dialog when opened the second time.

Test Plan:
Needs extensive testing on real world system as that changes
behavior now.

Reviewers: #kwin, #plasma_on_wayland

Differential Revision: https://phabricator.kde.org/D1784
2016-06-14 07:36:33 +02:00
Martin Gräßlin
319869881c Connect Application::screensCreated to WaylandServer::initOutputs
Summary:
Instead of having the Application invoke initOutputs after creating
the Screens, we can just connect to the signal emitted there.

This allows to make initOutputs a private, WaylandServer internal
method.

Reviewers: #plasma

Subscribers: plasma-devel

Projects: #plasma

Differential Revision: https://phabricator.kde.org/D1482
2016-05-02 15:52:07 +02:00
Martin Gräßlin
f8f8e61466 Make integration with KScreenLocker optional in WaylandServer
Summary:
In order to start the WaylandServer in kwin_x11 we need to make sure
that WaylandServer does not start the KScreenLocker integration. On
X11 the lock screen is provided by a different application (in Plasma
by ksmserver).

A new init flag is added to WaylandServer to not integrate with
KScreenLocker. Thus the default is still to integrate with KScreenLocker.

All direct usages of KScreenLocker are guarded to not be called if
the screenlocker integration is not present.

Reviewers: #plasma

Subscribers: plasma-devel

Projects: #plasma

Differential Revision: https://phabricator.kde.org/D1481
2016-05-02 15:51:19 +02:00
Martin Gräßlin
1d4cd55b9d Drop backend() -> AbstractBackend* from WaylandServer
No longer needed, provided through Application::platform().

Reviewers: #plasma

Subscribers: plasma-devel

Projects: #plasma

Differential Revision: https://phabricator.kde.org/D1339
2016-04-07 15:00:11 +02:00
Martin Gräßlin
7996d954c5 Provide the platform() -> AbstractBackend* in KWin::Application
Summary:
This is the first change in a refactoring series. The aim is to:
* rename AbstractBackend to Platform
* move backends/ to plugins/platforms/
* don't bind platforms to Wayland only
* provide a platform plugin for "normal" X11
* share more code between X11 and Wayland

This change moves the platform/backend from waylandServer to Application.
The init of the plugin happens directly in the Application from the
KPluginMetaData. There is no need to externally init it and set the
parent.

WaylandServer::backend() currently just delegates to
kwinApp()->platform(), the idea is to drop this method completely.

The test infrastructure is also adjusted to this change.

Test Plan: kwin_wayland still works, all tests pass

Reviewers: #plasma, sebas

Subscribers: plasma-devel

Projects: #plasma

Differential Revision: https://phabricator.kde.org/D1331
2016-04-07 08:00:12 +02:00
Sebastian Kügler
d8a3e0525f First part of outputmanagement wayland interface
This patch implements read access to the outputmanagement interface in
kwin_wayland's drm backend.

- outputdevices are created in DrmOutput, just like the wl_outputs
- wayland_server implements the outputmanagement interface and
- passes the changesets down into the backend

This means that the interface is announced, independently of the DRM
backend, but the actual outputs are currently only there if the DRM
backend is used.

The changes are not applied (passed into the kernel's drm interface
yet). This is obviously work-in-progress, so it's incomplete. Since it
allows us to run kwin[master] with the libkscreen KWayland backend, it's
a significant step allowing testing and further development.

Reviewed-by: Martin Gräßlin
2016-03-10 19:57:07 +01:00
Martin Gräßlin
ed3f55b953 [wayland] Fix heap-use-after-free in idle time plugin
We need to also destroy all idle objects when we tear down the
internal client connection. Otherwise the cleanup tries to free
the object after our Wayland connection is already destroyed.
2016-02-02 12:00:12 +01:00
Martin Gräßlin
5cef26d275 [wayland] Add support for ServerSideDecorationManager
We announce support for it and depending on whether we have a plugin
or not set the default mode to Server or None.

When a decoration interface is created it gets installed on the
ShellClient. But there it isn't properly used yet as we don't have
support for decorations in ShellClient yet.
2015-12-18 16:41:49 +01:00
Martin Gräßlin
3be016fba4 [wayland] Destroy all ClientConnections on tear down
Ensures that all Wayland objects are destroyed and the cleanup handling
is performed before tearing down the Compositor. This fixes for example
a crash if a Surface with a Shadow is still around at tear down.
2015-11-18 10:29:10 +01:00
Bhushan Shah
450bbaafdc [wayland] Introduce property to identify lockscreen and inputmethods
This introduces Toplevel::isLockScreen() and Toplevel::isInputMethod(),
this can be used to allow only lockscreen/inputmethods to get input
events and shown when screen is locked.
2015-11-16 15:49:38 +05:30
Martin Gräßlin
fa6fbbdfc1 [wayland] Destroy input method connection after process finished
More cleanup.
2015-11-10 14:38:45 +01:00
Martin Gräßlin
affcbac7e7 [wayland] Destroy Xwayland's ClientConnection on tear down
We need to destroy the ClientConnections we create. Also we need
to disconnect our Xwayland error handling before destroying it, otherwise
it would trigger the abort for crashing Xwayland.
2015-11-10 14:21:48 +01:00
Martin Gräßlin
1998d5ac1a [wayland] Improve tear-down to not crash if X11 applications are still around
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.
2015-11-10 08:56:32 +01:00
Bhushan Shah
3a1371989e [wayland] Introduce ShellClient::isLockScreen method
This allows to check if specific ShellClient is from LockScreen or not,
as well as this adds method to verify if ShellClient is from input
method like maliit.

Now that KWin knows about which window is from Screenlocker it can apply
various security restrictions like no other window then greeter is on
top of it.

Reviewed-By: Martin Gräßlin
2015-11-06 19:44:13 +05:30
Bhushan Shah
bacfd876fe [wayland] Start ksldapp from the WaylandServer
This introduces --lockscreen option in kwin_wayland which when used will
lock screen immediately. Also dependency to newly created kscreenlocker
repo is introduced.

REVIEW: 125954
2015-11-05 18:39:23 +05:30
Martin Gräßlin
0bb4498e1d [wayland] Proper metatype for ShellClient
Needs meta type declared and properly used in WaylandServer.
2015-10-08 12:51:40 +02:00
Martin Gräßlin
8add14fe89 [wayland] Drop hack for faking input for Qt popups
This reverts 29c2ae57.
2015-08-25 14:33:51 +02:00
Martin Gräßlin
e0103b15b7 [wayland] Remove the specific socket pair for QtWayland
Our own QPA plugin shares the internal connection, so we don't need the
dedicated connection for the QPA any more.
2015-08-25 14:33:50 +02:00
Martin Gräßlin
9272d01a2d Add a WaylandServer::findClient which takes a QWindow
Of course only works with internal clients.
2015-08-25 14:33:50 +02:00
Martin Gräßlin
a9e5343eb6 [wayland] Use an event thread for the internal Wayland connection 2015-08-25 14:33:50 +02:00
Martin Gräßlin
6294961ba4 [wayland] Keep Registry for internal connection around
Allows to interact with the Registry for the internal connection in
other parts of KWin and makes it possible to create more than just the
ShmPool for this Registry.
2015-08-25 14:33:50 +02:00
Martin Gräßlin
72635101f0 [wayland] Improve creation of KWayland::Server::PlasmaWindowInterface
The creation of PlasmaWindowInterface is moved from WaylandServer into
AbstractClient. This allows the sub classes to better control when to
create/destroy the Client.

For creation it's bound to becoming visible - that is Windows which are
only created but never shown are not announced at all.

For Client it's destroyed with the normal tear-down of a Client, for
ShellClient it's destroyed on unmapped (which also means a new one
will be created again in case of another mapping of the surface).

As a side effect, this works around the problem that ShellClients do not
yet get destroyed for QtWayland's menus (needs further investigation).
2015-07-09 09:10:33 +02:00
Martin Gräßlin
0b00af25dc [wayland] Announce AbstractClient to PlasmaWindowManagement interface
Creates a PlasmaWindowInterface for each AbstractClient and so far
passes caption and virtual desktop through.
2015-06-16 06:50:22 +02:00
Martin Gräßlin
859a3bb598 [wayland] Add support for PlasmaWindowManagement interface
So far this only allows to trigger show desktop functionality and exports
the state.

In future this should be restricted to just one dedicated desktop shell
process.
2015-06-13 18:23:54 +02:00
Boudewijn Rempt
98bcdbe70a [wayland] Add a command-line option to start an input method server
Input-method servers, like maliit, need to be known to KWin since KWin
needs to know about virtual keyboards. Virtual keyboards should be shown
as OSD layers, and they are one of the types of windows that actually
should be showable when the lock screen is active.

kwin_wayland --inputmethod /path/to/your/input-server

tries to start the input server. The input-server's window never gets
keyboard focus and is shown on top of all windows except for KWin's
internal clients.
2015-06-13 04:06:12 +02:00
Martin Gräßlin
f696b578cc [wayland] Add support for QtSurfaceExtension for closing ShellClients
If the ShellClient has a QtExtendedSurface it's closeable.
2015-06-10 00:59:53 +02:00
Martin Gräßlin
124bd8aaed [wayland] Add support for the PlasmaShell interface
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.
2015-06-09 19:10:56 +02:00
Martin Gräßlin
36fa88893e [wayland] Track the internal ShellClients in WaylandServer
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.
2015-05-21 13:34:26 +02:00
Martin Gräßlin
4ed4d4dab4 [wayland] Create a windowId for ShellSurface
The internal used window Id consists of two parts identifiying the
Client and one identifying the Surface. That is the first 16 bits
are set to the ClientConnection, the last 16 bits are taken from
the Surface id. As the Surface id is 32 bits, but we only use 16 bits
there is a chance of overlap. So this might need some improvement.
2015-05-21 13:34:26 +02:00
Martin Gräßlin
7d152991c7 [wayland] ShellClient can reference an internal QWindow
If the ShellClient got created for a Qt internal window, we try to
find the QWindow and if we get one, we use the geometry directly as
it got set by KWin in the first place.

Also a windowId() is added to ShellClient which can be used by the
effect system to find an EffectWindow. If it's an internal QWindow
we just use that window id. For other clients we still need some
smart solution.
2015-05-18 15:31:41 +02:00
Martin Gräßlin
74ae2f503e [wayland] Flush QtWaylands wl_display and KWin's wayland server when processing events
QtWayland and mesa might dead lock KWin if we start rendering a QWindow
before Qt/Mesa got the last frame callback. They perform blocking wayland
event reading on the main gui thread which makes it impossible for KWin
to do the compositing and send the callback.

To workaround this problem we fake a frameRendered directly after each
damage event for a Qt internal window. Unfortunately this is not yet
completely sufficient, thus we also need to ensure that the wayland
events are processed before any events are processed which would cause
a repaint and block. Thus we first flush QtWayland's wl_display and then
our Server connection. If there were any damage events we can be sure
that the frameRendered is sent before Qt attempts to render.
2015-05-18 15:31:40 +02:00