Summary:
Several of the subclasses are already derived from QObject.
The main reason is that the class should be moved out of KWin core in
order to move the OpenGL scene into a plugin. As Compositor calls into
the AbstractEglBackend to unbind the wayland display this creates a
problem which is easily solved by turning the AbstractEglBackend into a
QObject and connect to the signal emitted by the Compositor.
Test Plan: Compiles
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7669
Summary:
So far the Platform performed a deep query into the AbstractEglBackend
to get information such as EGLContext, EGLConfig, EGLSurface. This
change adjusts this so that the AbstractEGLPlatform forwards it directly
whenever it gets informed about one following the approach already used
for EGLDisplay. This simplifies the code a lot and allows to remove the
dependency on the actual scene backend from the Platform (in order to
split out the SceneOpenGL into a plugin).
Test Plan:
Run nested kwin_wayland, triggered Outline which requires all
those methods.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7698
Summary:
TabBox implemented a custom way to check whether two windows belong to
the same application. KWin internally has API for that which does it
better, in a standardized way and even across windowing system.
This change uses the internal API, resulting in the check working better
on X11 and starts to work on Wayland.
Test Plan: Verified Alt+` with Wayland windows
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7713
Summary:
The syncing of the window geometry to the internal geometry can
unfortunately cause a freeze in very special conditions:
1. create QML component
2. a Plasma::Dialog gets created
3. It creates the DialogShadows
4. This triggers QGlobalStatic creation which locks a non-recursive
mutex
5. The creation of DialogShadows creates a Registry and triggers a
roundtrip on the Wayland server
6. KWin processes all Wayland events
7. This triggers the creation of a ShellClient
8. The ShellClient has a PlasmaShellSurface which requested a position
9. The new geometry does not match the geometry of the Plasma::Dialog
10. ShellClient syncs the geometry to the Plasma::Dialog
11. Plasma::Dialog updates the theme because window geometry changed
12. This accesses the DialogShadows...
which is still in the non recursive mutex and we have a freeze.
By delaying the sync to the end of cycle we jump out of this deadly
sequence.
BUG: 384441
Test Plan:
The freeze doesn't hit any more. It's possible that some test
cases need adjustments.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7712
Summary:
Read(Window)Property and deleteProperty should only operate if there is
an X11 connection available.
In addition the methods are changed to the x11 wrappers provided on the
KWin::Application as that one can support restarting XWayland in opposite
to the global methods.
Test Plan: Compiles
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7651
Summary:
This code branch was dead. It was for the case that the number of screens
is 0, but KWin::Screens never has a count of zero, especially not the
XRandR based screens (c.f. screens_xrandr.cpp method ::update) which has
a fallback handling setting the count to always 1 if there are no screens.
Test Plan: Compiles
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7650
Actually they could go directly as nothing in KWin uses them anymore.
But there are more functions in kwinglobal which need to go as they
don't support restarting XWayland. So instead of breaking internal ABI
several times, just deprecate till everything is prepared.
Was missing a return and due to that the decoration renderer never
got added to the Decoration.
Thanks to code coverage reports on build.kde.org! They showed me that
something must have went wrong with the commit series.
Summary:
The SyncManager is highly X11 dependent and doesn't make much sense on
Wayland. It should already be guarded by the check for
GL_EXT_x11_sync_object, but better be safe than sorry, so explicit check
for on X11.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7514
Summary:
The compositor needs to claim the X11 compositor selection and redirect
the X11 windows. This of course only makes sense when having X11 support.
This change refactors the code so that if X11 support is missing the code
is not executed, but as soon as X11 support comes available the selection
gets claimed.
Also if the connection goes away the selection is deleted, though it
might be that this does not work as KSelectionOwner might call into xcb
and cause a crash. This needs to be tested once we start supporting
XWayland going away.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7504
Summary:
By moving the functionality into the Platform API we can also implement
support on other platforms which support this in general (e.g. DRM once
Roman's color adjustment patches landed).
Reviewers: #kwin, #plasma
Subscribers: plasma-devel
Tags: #plasma
Differential Revision: https://phabricator.kde.org/D7447
Summary:
Not needed except for X11/non-composited usage, so should be in the
plugin instead of core.
Platform API is extended to create a decoration renderer.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7444
This change is similar to D7232 and moves the scene_qpainter into a
dedicated plugin. Compared to the XRender case it's more complicated as
the platform plugins need to implement a platform specific backend.
The base implementation for this part used to be in scene_qpainter. As
the idea is to completly move it away from KWin core it would be point
less to still have the backend definition in KWin core, but it cannot
be in the scene plugin as otherwise all platforms need to link the
plugin.
To solve this a new platformsupport subdirectory is added which contains
the scene platform backend as a static library. For the OpenGL scene such
a static library will also be required.
Test Plan: SceneQPainter test still passes, nested compositor still works
Reviewers: #kwin, #plasma
Subscribers: plasma-devel
Tags: #plasma
Differential Revision: https://phabricator.kde.org/D7259
Needed by testing of QPainter scene to access the back buffer. Exposed
as a virtual method in Scene, so that the test does not have to cast to
SceneQPainter.
Summary:
First step for loading the compositor Scenes through plugins. The general
idea is that we currently needlessly pull in all the Scenes although only
one will be used.
E.g. on X11 we pull in QPainter, although they are not compatible. On
Wayland we pull in XRender although they are not compatible.
Furthermore our current Scene creation strategy is not really fault
tolerant and can create situations where we don't get a compositor. E.g
on fbdev backend the default settings won't work as it does not support
OpenGL.
Long term I want to tackle those conceptional problems together:
we try to load all plugins supported by the current platform till we have
a scene which works. Thus on Wayland we don't end up in a situation where
we don't have a working compositor because the configuration is bad.
To make this possible the switch statement in the Scene needs to go and
needs to be replaced by a for loop iterating over all the available
scenes on the platform. If we go there it makes sense to replace it
directly with a plugin based approach.
So this is a change which tackles the problem by first introducing the
plugin loading. The xrender based scene (as it's the most simple one)
is moved into a plugin. It is first tried to find a scene plugin and only
if there is none the existing code is used.
Test Plan: Tested all scenes
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7232
Summary:
KWin::displayWidth and KWin::displayHeight are bound to X11 which
doesn't make much sense on X11. In addition KWin internally knows
the overall display dimensions through the Screens singleton class.
Reviewers: #kwin
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D1798
Summary:
Creating the OutlineVisual is moved into the Platform API. The default
implementation creates the composited OutlineVisual. The X11 standalone
platform overrides it and creates the non composited outline in case no
compositing is used.
Test Plan:
Run kwin_x11 with KWIN_COMPOSE=N and KWIN_COMPOSE=X,
non composited outline and composited outline loaded
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7450
Summary:
With the latest refactoring AbstractClient::captionNormal is the same as
AbstractClient::caption(false) used to be. As there were only two usages
of the false parameter, let's remove this boolean trap and use proper
API calls.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7427
Summary:
The implementation can now be shared, it doesn't differ anymore between
X11 (Client) and Wayland (ShellClient). So instead of code duplication a
shared implementation in AbstractClient.
Test Plan: X11 and ShellClient tests still pass
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7426
Summary:
Bringing another caption feature from X11 to Wayland. If we have
multiple windows with the same caption, starting from the second window
a suffix <number> is added.
E.g. if we have three windows with caption "foo", the naming is:
* foo
* foo <2>
* foo <3>
The change tries to use as much shared code between the X11 and Wayland
implementation. Unfortunately it's not possible to share completely as
the X11 implementation does X11 specific things like editing the visible
name.
By sharing the code the numbering also works cross windowing system.
That is if a window is called "foo" on X11, a new window on Wayland with
caption "foo" will get adjusted to "foo <2>" and vice versa.
The change also eliminates a duplicated signal for captionChanged in
ShellClient (found by test case).
By using the shared implementation on X11 side a bug gets fixed which
got introduced with the support of "unresponsive", this is no longer
considered and the numbering still works even if there is a window which
is unresponsive.
Test Plan: New test case and manual testing
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7425
Summary:
This change splits out the X11 specific event filtering into a dedicated
X11EventFilter. It is created in the x11 standalone platform plugin when
the first Edge is being created.
Some of the X11 specific code is removed from ScreenEdges, though more
refactoring is possible in ScreenEdges to share more code between X11
specific and generic implementation.
Test Plan: Run KWin on Xephyr, screen edge approach effect still shows
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7406
Summary:
I don't know what the idea of entering QWhatsThis mode was, but the code
is pretty much dead. There is no QWhatsThis window shown as KWin does
not have any UI or help. The window which eventually gets shown in
context help is provided by the client application.
Furthermore KWin never leaves the QWhatsThis mode. At least one code
path entering in leave is dead in general and one at least on Wayland
(but probably also on X11 as the window never gets shown).
The show context help functionality works fine without the QWhatsThis
handling, so let's remove it.
I tried to blame what was the idea behind it, but it was unchanged since
decades and blame ended in a code moving commit.
Test Plan: Used show context help (kcmshell5 --platform xcb kwinoptions)
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7398
Summary:
This ensures that the X11 specific events are only read on X11 but not
on Wayland. Also moves quite some X11 specific code out of TabBox.
Test Plan: Compile checked, currently on Wayland, so no way to test.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7395
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
D7460 in kwayland assumes all WL_SHM_FORMAT_ARGB8888 buffers have
opacity premultipied RGB values.
Kwin tests need updating to do the same.
Rendering code did not need changing.
Test Plan: Tests now pass
Reviewers: #plasma, graesslin
Reviewed By: #plasma, graesslin
Subscribers: plasma-devel, kwin, #kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7607
Summary:
The sync is broken due to updateXTime not working correctly on Wayland.
As the broken sync results in a very unsmooth resize experience it is
better to disable it for the time being.
Once we have a solution for updateXTime it should be enabled again.
BUG: 374881
Test Plan: Run nested kwin_wayland and resized Qt 4 application
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7524
Summary:
KWin::updateXTime only delegates into the platform API where the method
is a no-op. The actual implementation is moved into the X11 standalone
platform as it uses QX11Info which is non functional except on the X11
standalone platform.
This change exposes a problem with timestamp handling: on Wayland the
X11 timestamp does not get updated at all, causing e.g. window sync not
work correctly (c.f. bug 374881). We cannot implement the updating in the
same way as QX11Info/Qt xcb platform does it as that would introduce a
blocking roundtrip to XWayland which is dangerous.
As a side-effect this change removes linking to Qt5::X11Extras in kwin
core as it's no longer needed.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7515
Summary:
Currently when a client changes it's buffer size the result is corrupt
until we move the window.
When a client buffer scale changes we need to redraw the whole window,
and most importantly flush the cached window quads, which reference the
scale.
This is not handled by the doSetGeometry() from the size changing as the
normalised size of the client remains the same so it no-ops.
Test Plan:
Opened gtk3-demo and changed screen scale. It's now perfect.
Patch for Qt to work correctly incoming.
Reviewers: #plasma, graesslin
Reviewed By: #plasma, graesslin
Subscribers: graesslin, plasma-devel, kwin, #kwin
Tags: #plasma
Differential Revision: https://phabricator.kde.org/D7486
Summary:
A surface has an API to know which screen(s) it's on, this is useful
especially for knowing the scale it should render at.
In practice Qt currently doesn't do anything with this information; but
that's set to change.
Test_helpers is changed as we need to create output objects in order for
wl_surface to map them.
Closes task T4467
Test Plan:
Attached unit test.
As mentioned above, it doesn't have any real world impact currently, so not a lot
to test.
Reviewers: #plasma, graesslin
Reviewed By: #plasma, graesslin
Subscribers: johanhelsing, graesslin, plasma-devel, kwin, #kwin
Tags: #kwin
Maniphest Tasks: T4467
Differential Revision: https://phabricator.kde.org/D7359
Summary:
Apparently some old configs made PresentWindows register the top left
corner which does not make any sense as that's not supported by touch.
So to be sure, don't register those edges.
BUG: 383797
FIXED-IN: 5.11
Test Plan: Not tested, I'm on Wayland
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7508
It was already partially using the x11Connection and partially the global
connection. In order to prepare for removal of the global connection and
rootWindow, it is better to use only the newer variant through kwinApp.
Summary:
announceSupportProperty is called from the effects on startup. It
registers the property on the X11 root window. If we would start
kwin_wayland without XWayland support this would result in a crash.
This change refactors the code so that it still registers the property,
but does not try to interact with X11. Once X11 support is available it
does the actual registering.
But this means that the effects get an incorrect atom returned. This
needs additional changes. E.g. they could also react to the
x11ConnectionChanged and register again, then they would get the proper
atom. This would also support restart of XWayland.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7475
Summary:
KWin's DBusInterface announces the service name on an X11 root window
property. For this it requires a runtime dependency on X11. If we would
try to start kwin_wayland without XWayland support this would result in
a crash.
This change turns the dependency into an optional one by checking
whether the KWin::Application has support for X11 and registers a
connection to announce the property as soon as a connection is
established. Thus it even supports the restart of XWayland now.
Test Plan: Compiles
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7474
Summary:
The KWindowSystem call which we used doesn't work on Wayland as it's only
implemented in the xcb variant and cannot be made available for Wayland
in an easy way as it is still XLib based.
This change turns the optional XCB-ICCCM dependency in a required one
and thus can use the functionality provided by said library to implement
what KWindowSystem provided.
BUG: 382789
Test Plan: New test case which failed with old code
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7046
Summary:
So far KWin always updated the active window property even if the actual
window id hasn't changed. E.g. if a Wayland window was active and another
Wayland window gets activated the window id was and stays 0.
Nevertheless KWin updated the property causing wakeups in X server and
any application listening to property changes on the root window.
Futhermore this situation is an information leak: we leak when a Wayland
window gets activated to X11.
To solve this problem RootInfo caches the active window id and only
updates if it changes.
Test Plan:
Verified with xev -root that the active window does not get
updated needlessly.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D7096
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:
KWin passes the current keysym converted to a Qt::Key in the QKeyEvent.
The current keysym does not always change when a key gets released, so
when pressing a shortcut the release carry a Qt::Key which could be
considered as wrong.
QtWayland transforms the actual pressed/released key into a keysym and
passes that through the QKeyEvent. This change does the same for the
internal windows. A new QKeyEvent is created and adjusted in a way that
it matches what Qt expects.
Why not change everything to how Qt expects it? The key is used at
various places and in KWin internally we expect the behavior how it is
currently implemented. So it's better to use Qt's expectation only when
interacting with Qt.
Also the change carries a workaround for a bug in QKeySequenceEdit
(see QTBUG-62102) and transforms Super to Meta. As this adjustment only
makes sense for the internal windows we need to send in an adjusted
QKeyEvent anyway, so another argument for using the Qt behavior only in
this place.
Test Plan:
Can set a shortcut on Wayland and it can be used to activate
the window.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel
Tags: #plasma
Differential Revision: https://phabricator.kde.org/D6828
Summary:
Based on the work of 3f4995fb9b this change
introduces a GlxContextAttributeBuilder to make the requesting of context
attributes cleaner, more verbose and less error prone copy and paste.
Test Plan:
Switched between Core and legacy and verified the output;
extended auto test
Reviewers: #kwin, #plasma
Subscribers: plasma-devel
Tags: #plasma
Differential Revision: https://phabricator.kde.org/D6411
