Currently, input events can flow directly to input device handlers and
sometimes they go through the InputRedirection, which simply forwards
them to the corresponding input device handler.
In case the user has just the one display but they don't want to show it
in their main workspace when sharing video, allow creating a virtual
display.
This also will allow using remote devices as support displays.
The WindowThumbnail item uses the GLTexture class. In order to destroy
the thumbnail texture, the item will schedule a destroy job.
This means that the GLTexture can be alive during or after graphics
reset.
On the other hand, as an implementation detail, GLTexture::clear() may
allocate a framebuffer object, which is going to be destroyed together
with the last texture.
Given that window thumbnail textures can be still alive after a graphics
reset and the fact that GLTexturePrivate::s_fbo gets destroyed when the
last texture is destroyed, kwin can end up trying to clear a decoration
texture with now defunct s_fbo.
Since the old old s_fbo is inert, the glBindFramebuffer() function will
fail and the glClear() operation will affect the default framebuffer,
thus leading to black flickering visual artifacts.
In order to fix that issue, this change makes GLTexture destroy s_fbo
unconditionally in GLTexturePrivate::cleanup() which is called whenever
OpenGL stuff is about to tear down, e.g. due to graphics reset, etc.
BUG: 443951
Without this there can be a mismatch between what clients expect and what
KWin actually uses, causing for example stutter in video players.
BUG: 444303
FIXED-IN: 5.23.2
InputDeviceHandler keeps track of which client has focus, and whether
the decoration or main window has focus.
Should the decoration get destroyed whilst the decoration has focus we
don't update correctly. This can happen when
"BorderlessMaximizedWindows" is set, or if you use key presses whilst
above the decoration.
cleanupDecoration (which is an odd name) is called whenever a decoration
gains or loses focus. Here we can connect for the decoration destruction
and force a focus change.
BUG: 411884
The screen count can be retrieved by checking the number of items in the
EffectHandler.screens property.
The replacement for the numberScreensChanged signal are the screenAdded
and the screenRemoved signals.
The main motivation behind this change is to clean up the screens api
and reduce the number of usages of the Screens class.
This provides a way to create, destroy, and rename virtual desktops in
the overview effect as well as switch between desktops.
The mechanics of switching between virtual desktops can be revisited
later though.
This can be useful for QML scripts that deal with virtual desktops.
The virtual desktop model keeps a copy of virtual desktop objects to
avoid hitting asserts in QAbstractItemModel (it has some asserts to
ensure that indices passed to beginInsertRows() or beginRemoveRows()
make sense).
When we're adding the output to the EglGbmBackend pipelines aren't necessarily
setup yet and are thus missing the modifier list. As creating the gbm surface
immediately is useless anyways, delay that until we need it, where the modifier
list is available.
First we check to see if the color scheme has header colors, and if it
doesn't, we turn around and ask for them anyway, relying on implicit
behavior in kcolorscheme that falls back to Window colors when Header
colors are requested but are not present. Instead, let's just ask for
Window colors to avoid the run-around and stop relying on implicit
behavior.
Currently, idle timers are not restarted on user input which triggers
the lockscreen even though the user is active at computer.
This change fixes that by making sure that idle timers are restarted
whenever SeatInterface's timestamp changes, i.e. user moves the pointer
or presses a key, etc.
Linking builtin effects against KCMs is really awkward. This change
decouples builtin effects from KCMs that use EffectsModel.
In order to discover builtin effects, metadata files are installed in
kwin's data dir, which will be subsequently read by EffectsModel.
The main motivation behind this change is to prepare kwin for importing
kwayland-server code in libkwin.
As is, builtin effects are linked with libkwin. Some builtin effects
have wayland specific code. If we move wayland stuff in libkwin, there's
going to be a circular dependency between kwin4_effect_builtins and
libkwin targets.
This change intends to break that dependency by linking builtin effects
to kwin executable.
The main issue with that is that EffectLoader would need to discover the
effects indirectly. QStaticPlugin is used for that purpose.
Besides breaking the cyclic dependency, it makes builtin effects use the
same plugin infrastructure in libkwineffects that external effects use.
Metadata in src/effects/effect_builtins.cpp was converted in a list of
python dictionaries, which was fed to a python script that generated
main.cpp and metadata.json files.
As is, libkwineffects doesn't use any specific apis in kwayland-server,
it simply "forwards" wayland display and surfaces from libkwin. Given
that, there is no need to link libkwineffects with kwayland-server. If
an effect needs to access wayland specific stuff, it can link explicitly
against kwayland-server.
The main motivation behind this change is to further loosen up
dependencies between various kwin components and kwayland-server so the
latter can be moved back to kwin.
Before attempting to create scenes, kwin will redirect windows but if
the opengl scene can't be created, it won't unredirect windows, which
seems to cause issues on aarch64.
BUG: 443953
API-wise it's odd to require absolute position with relative pointer
moves.
This cleans up some of InputRedirection code by making it simply forward
pointer input events from input devices to the pointer input device
handler, which knows better what to do with the delta value.
The pointer input device handler will compute the absolute position based
on the specified delta value, but it could also do something else, e.g.
not move the pointer at all if it's locked, etc.
When geometry updates are blocked, the output doesn't get updated. This
breaks Workspace::clientArea() overload that takes only the window.
Previously, clientArea() would look up the output where the window is
every time it's called, so the fact that the screen id or AbstractOutput
is unsynchronized with the frame geometry was irrelevant.
This change restores the old behavior as 5.23 is affected by the
output() being out of sync with the frameGeometry(). Specifically, when
kwin starts managing an X11 window, it will block geometry updates,
setup the window, e.g. make it fullscreen, and unblock geometry updates.
Since Workspace::clientArea(clientArea, Toplevel) uses the output(),
X11Client::setFullScreen() will most likely put the X11 window at a
wrong output if it's called inside X11Client::manage().
BUG: 443787
AbstractEglBackend includes option.h, which includes main.h, which
includes QApplication. Since SceneOpenGLBackend doesn't link against
Qt::Widgets, kwin fails to build on Gentoo, but not on other distros
for some reason...
Abstract clients tolerate passing the shaded window geometry to
moveResize().
But the main issue with applyWindowRules() is that it uses the current
frame geometry even though it calls moveResize(). It's not a big deal
but it's error prone.
This change ports applyWindowRules() to the move resize geometry, which
makes code more straightforward and ensures that kwin uses right
geometry type with moveResize().
X11Client tolerates passing shaded geometry to moveResize() and in many
cases kwin already does that.
Another issue is that this doesn't align well with new async geometry
handling abstractions. pos() can't be used because it corresponds to the
current frame position.
We can safely pass the last move resize geometry. It simplifies code a
bit and makes sure that everything works as expected with the move
resize geometry.
Currently, adjustedSize() does two things - it computes and constrains
the natural size of the window.
In many places where adjustedSize() is used, the natural size doesn't
need to be constrained and in some it's actually undesired because
AbstractClient::constrainClientSize() doesn't allow the client size to
be 0x0, which can happen when dealing with a client that has no buffer
committed yet.
This change replaces adjustedSize() with implicitSize(), which simply
calculates the natural frame size based on the current client size.
If the frame size needs to be constrained, for example during
interactive move-resize, use constrainFrameSize() or if you need to
constrain the client size - constrainClientSize().
Trying to reconstrain the geometry after applying rules is unnecessary
because if the geometry is forced using a rule, resizeWithChecks()
should not change it; if the window is maximized or has entered fullscreen
mode, window gravity is irrelevant. If the window is shaded, this
resizeWithChecks() is not needed.
This change simplifies AbstractClient::applyWindowRules(), which allows
to split adjustedSize() to further simplify geometry handling.
Prefer hiding/showing the panel (i.e. the window) when not a touch event
than stopping to make the inputmethod active.
This way we remain compatible with non-virtualkeyboard inputmethods.
The bounding rect of an item is in the item-local coordinate space. If
the item is moved, its bounding rect won't change, but the parent's
bounding rect, may change.
BUG: 443756
AbstractClient::constrainClientSize() forces the minimum client size of
1x1.
If AbstractClient::adjustedSize() is called before the XdgToplevelClient
is mapped, it will return 1x1 rather than 0x0 as expected, which will
confuse
QSize s = adjustedSize();
if (s != size() && s.isValid())
resizeWithChecks(s);
in AbstractClient::applyWindowRules(). Since 1x1 is different from 0x0,
the xdg-toplevel surface is going to be resized to 1x1.
BUG: 443705
Whether relative pointers are supported doesn't depend on the input
backend. This change moves the instantiation of the extension to the
WaylandServer class to make code more consistent.
With the LEDs enum being defined in kwinglobals.h, wayland_server.h
won't need to include keyboard_input.h, which is good for compilation
times and wayland_server.h will drag less stuff, e.g. QtWidgets (input.h
includes QAction)
Currently, cpp source files are included partially in effect sub-folders
and src/effects/CMakeLists.txt, which is really confusing and hard to
follow.
With this change, effect targets will be defined in their own subfolders.
This makes build files more straightforward.
Effect sub-targets are eventually merged into a monolithic
kwin4_effect_builtins target.
Another reason for modularizing builtin effects is that no two effects
can generate moc files with the same name atm even though they are in
different sub-folders. This can be potentially useful in the future, e.g.
making effects static plugins in order to decouple builtin effects from
libkwin (every effect subfolder would need a main.cpp or plugin.cpp file,
which will include the associated moc file).
The GLTexture class is forward declared and the ShowFpsEffect class has
a QScopedPointer<GLTexture> field. We either need to include the
kwinglutils.h header file or add a destructor that does nothing and
define it in the cpp file, where kwinglutils.h is included.
At the moment we'll be setting the YInverted setting, but in practice
that won't have any effect as it only changes the render matrix and
we'll end up streaming inverted textures.
This change addresses it by rendering it into another texture first to
resolve this situation and then download that new texture instead.
The English word "pack" is not really the correct word for these
actions, and does not succeed in communicating what they will do. Since
the actions simply move the active window as far as it will go in the
specified direction, the actions can be renamed to say that instead.
Also rename the action names in the code to match their new UI text for
clarity.
With lv3:ralt_alt ("Right Alt never chooses 3rd level") option set, we
get more layouts from libxkbcommon than it was configured, see:
https://github.com/xkbcommon/libxkbcommon/issues/262
It might be correct lib's behavior, still.
The extra layouts are redundant, so we strip them out from usual usage.
BUG: 440027
This change merges the two OpenGL backends into one making the current
default of GLCore the overall default. It becomes the first context to
try to create. If it fails, it will automatically fall back to the
(previous) OpenGL 2 backend.
Reasoning: the differentiation of OpenGL 2 and 3 is a very technical one
and hard to understand for users. It is not obvious which one is better
or should be used. This results in many user discussions like "Which
backend to use?"
Back when the OpenGL 3 backend was introduced the dedicated feature made
sense. It was a new code base using new driver features. Nowadays the
code base in KWin is robust and mature and so are the drivers. A driver
advertising support for OpenGL 3 will support OpenGL 3. We don't have to
plan for driver breakage in this area any more.
Also our code evolved through the context attribute builder which gives
us the possibility to more easily fall back in case we cannot create the
context. Thus the need to select the backend is not so important as it
used to be when the feature got introduced.
If a user still wants to force OpenGL2, it is still possible by setting
the appropriate environment variables like MESA_GL_VERSION_OVERRIDE.
This change brings the improvement that the backend selection is now
completely removed from the compositing KCM.
Currently, the pointer is moved to the center of the workspace. However,
on a multi-monitor setup, the workspace center may not be the same as
the center of the output it's on. That's the case with my setup -
1920x1080, 1920x1080, 1080x1920 (the monitors are laid out in a row from
left to right).
This change improves the default placement of the pointer by actually
moving it to the center of the screen that contains the workspace center
so the pointer doesn't end up at some "random" position from the user's
point of view.
Edge geometry has width and height, so we need the correction for
approach geometry of bottom and right corners.
The other edges are fixed as well.
BUG: 442973
On X11, there are four input models. With some input models, it's okay
if the window manager calls XSetInputFocus(), with others, the wm has to
ask the client to make a XSetInputFocus() request.
If kwin wants a client to take input focus, kwin will add the client
to the should_get_focus list, which contains all the windows that
are about to get input focus. Clients are popped from the list upon
receiving FOCUS_IN events.
A client will be added to the should_get_focus list even if kwin thinks
that the client already has input focus because communication between
the wm and xorg is async, anything can happen with input focus in meanwhile.
On the other hand, the wm may sometimes focus the null window if no
window should contain the input focus. The issue is that the
should_get_focus list is not cleaned up in that case, which can lead to
Workspace::mostRecentlyActivatedClient() returning wrong client and
possibly other async related issues.
We don't have such madness on Wayland as the compositor is in charge of
handling input focus.
This change makes Workspace::focusToNull() clear the should_get_focus,
which is reasonable. We need to deactivate "in-flight" focus requests.
This also fixes the bug where fullscreen Wayland windows don't go above
docks and panels due to Workspace::mostRecentlyActivatedClient() returning
bad client.
BUG: 439405
BUG: 395919
Currently, kwin crashes at shutdown because the idle poller plugin is unloaded when exit handlers are run, after the waylandServer() is destroyed. This results in null dereferencing.
BUG: 443268
Xwayland will re-create the wl_surface object if the X11 window is
unmapped and mapped. That, and the fact that the order in which the
WL_SURFACE_ID client message event is received and the wl_surface object
is created is undefined can cause the following bug:
* WL_SURFACE_ID is received
* the old wl_surface object is destroyed, m_surfaceId is reset to 0
* new wl_surface is created but because m_surfaceId is 0, it won't be
associated with the x11 window
This change ensures that kwin will associate the wl_surface with x11
window by making it not reset cached surface id when the old wl_surface
is destroyed.
However, we cannot leave m_surfaceId as is because wayland aggressively
re-uses object ids so kwin can associate wrong surface with x11 window.
To prevent that, this change also makes Toplevel::setSurface() reset
cached surface id.
CCBUG: 442936
CCBUG: 426069
It's not necessary, the placeholder output already gets created in DrmBackend::removeOutput
if necessary. More improtantly it's missing the check for shutdown, which
may cause issues if the computer is turned off while no outputs are connected.
clientArea() was changed to forbid "-1" screen ids, but it seems like
the thumbnail aside effect can pass it to refer to the active screen.
This change makes the thumbnail aside effect handle "-1" screen id case
explicitly. It will be also useful for EffectScreen transition.
BUG: 443166
If the virtual desktops rule is created, only the last virtual desktop
the window is on is going to be checked.
With this, all virtual desktops that the window is currently on will be
checked.
Technically, it's an api breaking change, but the window rules kcm is
the primary user of queryWindowInfo() so I don't think it's a big deal.
KPluginMetaData::findPlugins only returns valid json metdata, the previous
check was accidentally kept for the condition that the plugin provides a theme engine.
BUG: 442978
FIXED-IN: master
Blobs are not reference counted if used by other drm master, if kwin
re-uses a deleted blob in an atomic commit, it will fail. For example,
on my computer, this happens when kwin starts after xorg.
Besides that, kwin may try to destroy blobs that it doesn't own, which
is not fatal but it's strange to do so.
CCBUG: 442603
CCBUG: 439873
While findWorkingCombination should never fail, in the case it does
KWin should not crash. To achieve that simply restore the old config
in case of failure.
CCBUG: 439873
When libinput tears down, it may access the Session object. This change
re-jitters the shut down logic so the Session object is guaranteed to be
valid when libinput stuff gets destroyed.
BUG: 442104
ksmserver provides the backing window (the hidden black one) for the
lockscreen. We don't want to animate this fading out.
It no longer provides the logout prompt since several plasma releases.
DrmGpu::updateOutputs is now changing the state of some drm properties
without changing the fitting output state (namely RenderLoop inhibition)
which can lead to rendering being inhibited indefinitely in some cases
Software-based clipping is naive. It maps the clip region from the
global screen coordinates and intersects it with window quads. If the
window is transformed, the quads won't be clipped as expected.
Unfortunately, the OpenGL scene enables software-based geometry clipping
if the screen transformed. It's not clear why it does so, perhaps as a
performance optimization? Either way, this produces incorrect results
when the screen is scaled.
BUG: 440940
This makes ExpoLayout easier to maintain. As is, the main issue with it
is the number of layout algorithms.
With this, the ExpoLayout is going to have two layout algorithms - one is
very simple and the other not so.
Startup code in plasmashell was changed so xsetroot is not called
anymore, which is sort of fine.
Unfortunately (or not?), it exposed a bug in kwin. Cursor::x11Cursor()
only works in the standalone X11 session.
On Wayland, Cursor::x11Cursor() will return XCB_NONE which results in
seeing cross cursor when there should be arrow cursor.
This change moves xcb_cursor_t look up code from X11Cursor to the base
Cursor class. In hindsight, I would like to introduce a window manager
class where the xcb cursor and other x11 specific code can be moved in
the future for better encapsulation of platform-specific code.
CCBUG: 442539
For some reason, layers are change after applying Show Desktop effect, so
we will have AboveLayer for our popups and Desktop, and NotificationLayer
for Dock which hides us.
Also, OSD and critical notifications were always hidden by our popups.
This patch solves both the issues.
Usual notifications will still be hidden, but hopefully it's not a big
issue.
BUG: 442605
reinterpret_cast<>() will fail if the types we cast from and to have
mismatching sizes.
Unfortunately, there are platforms that have Window and
EGLNativeWindowType of different size. This results in compilation
errors.
In order to work around those problematic platforms, this change
replaces reinterpret_cast cast with a c style cast.
EffectQuickView is used by Aurorae. As long as Aurorae decorations are
rendered by kwin, it's not a problem. However, kde-gtk-config kded
module can also render them. This creates a problem. If effects object
is not created, accessing any of its getters or setters will result in a
segmentation fault.
This change rewrites the share context check so the effects object is
not accessed anymore.
One could argue that kde-gtk-config has to provide a dummy EffectsHandler
but it doesn't use effects and libkwineffects is not a dependency of
KDecoration2. So, providing a dummy EffectsHandler makes no sense.
In hindsight, we need to revisit the usage of EffectQuickView in Aurorae
as accessing the EffectsHandler in EffectQuickView is a totally valid
usecase and integration of QOpenGLContext.
BUG: 441585
When running in plasma, the animation speed slider is in General
Behavior KCM.
The Defaults button should not reset the animation speed slider because
it's hidden.
BUG: 442600
With per-screen rendering, the projection matrix is no longer created
with the workspace geometry, i.e. all screen geometries united, so the
center of the workspace geometry may not map to (0, 0) in the clip
coordinates.
GLRenderTarget::virtualScreenGeometry() can be used to query the rect
that was used to create the projection matrix.
BUG: 442770
KMS can only ever have one frame pending at the moment. If we
update the outputs while a pageflip is still pending on any output
the atomic commit will fail with EBUSY, which both invalidates
the testing for output configuration and makes applying the wanted
configuration fail.
This can be removed again once KMS gains the ability to do mailbox
presentation; that will likely still take a while though.
BUG: 442677
Currently, data from client buffer EGLStream is copied to a surface
texture. An fbo is used for that purpose. The main issue with it is that
it doesn't restore the old framebuffer binding.
The surface texture can be updated in the middle of a compositing cycle.
If the framebuffer binding is not restored, any window that must be
rendered in an offscreen texture won't be rendered to the offscreen
texture.
This change makes EglStreamSurfaceTextureWayland restore the fbo binding
so the DeformEffect and software screen rotation work as expected with
the proprietary NVIDIA driver.
BUG: 442697
This makes the compositingPossible() output more elaborative,
and adjusts their priorities to qCWarning.
I thought about dropping the "Compositing is not possible"
(qCCritical) message. It's not critical for X11 and Wayland
depends on OpenGL. OTOH it's from a different component. So in
the end I settled for qCWarning again; there is no real way
to know, if the platform will consider this a critical problem
(and eventually abort).
Then I saw X11StandalonePlatform::compositingNotPossibleReason,
which has more user friendly, QT Richtext / HTML encoded output,
but this seems overkill for the terminal; now I would like to
know, where this is actually used...
While at it report "manually" suspended compositing via qCInfo
instead of qCDebug.
After updating my Debian buster to bullseye, I noticed missing
shadows / composite for KDE, which made overlapping windows hard
to recognize.
.xsession-errors just had "kwin_core: Compositing is not possible".
Using the suggested QT_LOGGING_RULES="kwin_*.debug=true" didn't
provide any more clues; nothing I tried did.
Eventually I ended reading the kwin source and found, that
disabled composite via kwinrc :: [Compositing] :: OpenGLIsUnsafe
was not reported.
IMHO all these disabling cases should use qCCritical(KWIN_CORE),
like the "Compositing is not possible" message, but for the time
being, this simply logs the OpenGLIsUnsafe reason, just like all
the others.
With the recent AbstractOutput changes, Workspace::clientArea() overload
that takes only the window and no additional output was changed to
return clientArea(opt, window, window->output());
prior to that, it had been looking up the output at the center of the
frame geometry.
As it turns out, AbstractOutput::sendToOutput() blocks geometry updates,
which in its turn means that Toplevel::output() will be updated only
after geometry updates are unblocked. For the most part, it's not a big
deal until you need to use Workspace::clientArea(opt, const Toplevel*)
Since the output won't be updated until geometry updates are unblocked,
clientArea(opt, const Toplevel *) may return outdated info.
One could argue that we just simply need to update m_output similar to
m_frameGeometry when geometry updates are blocked, but... it's not going
to work on wayland! On Wayland, GeometryUpdatesBlocker is totally
unnecessary. Even if a window is resized, m_frameGeometry will be left
unchanged until the client repaints the window.
Instead, one need to pass the AbstractOutput to clientArea() if it's
important.
This change makes X11Client::changeMaximize() query the MaximizeArea of
the output containing the center of the move resize geometry, similar to
what the XdgToplevelClient does.
BUG: 442534
There are some unresolved issues where driving outputs can fail because
of bandwidth constraints. These don't appear to happen with implicit
modifiers, or at least they don't happen as often.
libinput will send release and proximity out events after the device is
disconnected.
This just takes into account that tablet might be nullptr.
BUG: 442573
The stored geometry is irrelevant in the window is maximized.
This is especially relevant if we:
* open a virtual keyboard
* rotate the display (then it looks ok as it was already addressed)
* then remove the keyboard.
At that point we want to reset to the available area rather than the
previous.
By supporting all the required attributes in the DecorationThemeMetaData class
the custom struct can be dropped.
Task: https://phabricator.kde.org/T14744
We can just put the parameter in the variant list. Because the method is virtual, the keyword
parameter must exist in the method definition.
Task: https://phabricator.kde.org/T14744
b38bb416 introduced flicker when restarting compositing because the
DrmGpu::findWorkingCombination method usually creates new buffers for
the commit, without rendering into them. Instead of that, re-use
existing buffers where possible
The configs returned by eglChooseConfig are sorted from highest to lowest buffer sizes.
Filter the configs to find a suitable candidate that matches the requested attributes of the surface.
This fixes the corrupted Aurorae window decorations on Wayland with the proprietary Nvidia driver.
