With AbstractOutput being used more heavily, it makes sense to have
something like Screens::number() in the Platform class. As is, the steps
to get an output for a given point are awkward - first, get the screen
id, then use the screen id to get the output.
With the new virtual desktop model, we have an issue where the old
code that uses desktop() needs to be ported to desktops().
However, using no desktop() is better as we don't need to deal with
cases where a window can be on several desktops, which can be annoying
sometimes.
This change removes the desktop arg in electricBorderMaximizeGeometry()
and ports it to a Workspace::clientArea() overload that requires no
desktop.
Under the hood, Workspace::clientArea() still uses desktop(), but it
could also use a different strategy to compute the client area if the
window is on several virtual desktops, e.g. intersect client area on
every virtual desktop.
There's no need to guard the code, gbm and drm format definitions
are the same. Using GBM_BO_FORMAT_* even caused bugs, as that is
an enum and not a proper format identifier.
BUG: 441253
It's confusing to have two signals (virtualScreenGeometryChanged() and
screenGeometryChanged()) that indicate the same thing.
This change ports parts of kwin from the screenGeometryChanged() signal
to the virtualScreenGeometryChanged() signal with the main motivation to
drop the former.
The virtualScreenGeometryChanged() signal was chosen as the replacement
for the consistency sake with EffectsHandler's virtualScreenGeometry and
virtualScreenSize properties.
Currently, the EffectsHandler has two signals that are emitted when the
combined geometry of all outputs change - virtualScreenGeometryChanged()
and screenGeometryChanged(). Having two signals is most likely a
historical artifact.
This change untangles the screenGeometryChanged() signal from the
Workspace and makes it the same as the virtualScreenGeometryChanged()
signal.
Currently, there are a couple of issues with output querying on X11:
(a) if an output is changed, for example its transform has been changed,
then all outputs will be destroyed and created again
(b) it's possible to encounter the case where the platform has no
outputs. The X11Platform destroys all outputs, then queries new
outputs. The Workspace and AbstractClient sub-classes handle having
no outputs very poorly! It's even possible to hit a crash.
With this change, outputs will be queried similar to how it's done on
Wayland.
The current duration is 300ms, which is inappropriate for two reasons:
1. It's too slow
2. It doesn't match one of the standard durations. The effect should
ideally use those durations directly, but if this is not possible
for technical reasons, it should use the effective value of one of
those durations. Units.longDuration is 200ms which is the most
appropriate one to use here.
Therefore, change the animation duration from 300ms to 200ms to match
the standard Units.longDuration duration.
BUG: 441308
FIXED-IN: 5.23
This makes it easier to spot if the effect is activated while there is
only one maximized window.
Note that anchors.margins cannot be used unfortunately as it won't take
effect until the ExpoLayout item is fully constructed. It may take a
couple of cycles for the geometry to settle down, which makes reasoning
about how the effect works difficult.
BUG: 312146
Once an animation starts due to property change, it cannot be easily
re-targeted. This can cause undesired animation jumps if a property
changes during startup (for example from 0 to its final value).
With this change, the window heap's animation will be disabled until
the effect starts the intro animation.
The ExpoLayout delays relayouting for optimization purposes. However,
this means that new geometry will be available only after returning to
the event loop.
This change delays starting the intro animation so it can be started
with new geometries.
It's confusing to have globalPos() and geometry() as both can return the
same information.
This change drops globalPos() function as it's not used outside the
AbstractWaylandOutput class and renames setGlobalPos() to moveTo() to
avoid having a setter without matching getter.
According to the Qt documentation, if an item overrides the
geometryChanged() method, it must call the base class method.
QQuickItem::geometryChanged() is responsible for emitting signals such
as xChanged(), yChanged(), etc.
It's the same as the currentDesktop except that it's a VirtualDesktop
object.
The main advantage of the currentVirtualDesktop property is that it
doesn't change if a virtual desktop is added or removed in the middle.
It also makes dealing with virtual desktop changes easier.
With the new virtual desktops model, a window can be on several virtual
desktops. Currently, scripts have no any way to get the list of desktops
the window is on. This change addresses that.
Currently, window thumbnails may be placed behind the panel, which
doesn't look good.
With this, the window heap will cover the same area as the maximize
area.
This makes the WindowHeap more robust to layout changes. Currently, the
main issue with it is that thumbnails will be misplaced if the heap's
scene position changes.
Kirigami.ScenePosition automagically keeps track of the item's scene pos.
If a window is on several virtual desktops, Workspace::switchWindow()
will not work as expected because AbstractClient::desktop() returns the
id of the last virtual desktop.
Since the active window is most likely on the current virtual desktop,
we can use that for filtering out irrelevant windows.
The new overloads take the client (as context) and the desired screen id
or a point and return the client area.
The main motivation behind this change is to make the transition to the
new virtual desktop model where a window can be on several desktops less
painful.
In the recent refactor we made it so environment variables got synced to
the Application::processStartupEnvironment.
It then seemed safe and cleaner to remove the qputenv calls, but this
was not the case. It regressed the unit tests on CI and kglobalaccel
which is another path where kwin spawns clients.
Syncs the primary selection from wayland to X and from X to wayland.
Instead of doing it through the internal connection like the clipboard,
this sets/reacts to changes in SeatInterface::prrimarySelection directly.
BUG:422426
FIXED-IN:5.23
This effect is meant to be as a replacement for the present windows and
the desktop grid effect. It is written using QML.
So far, this effect implements only the basic features of the present
windows effect. Desktop management features will be added later.
CCBUG: 295775
CCBUG: 303438
This allows changing the type of desk to QVector<VirtualDesktop *>.
Based on the dont_activate flag, Workspace::sendClientToDesktop() will
try to focus the window if it's moved to the current virtual desktop.
In order to implement that, it needs to know whether the window has been
on the current desktop. c->isOnDesktop(desk) is a much sophisticated way
to do that.
Workspace::takeActivity() forces the modal dialog and its parent window
to be on the same virtual desktop. It uses int-based desktop ids for
that purpose.
This change ports the relevant parts of Workspace::takeActivity() to the
VirtualDesktop object.
This way if kwin_wayland crashes we don't need to ensure that new
environment variables need to get synced across the new env.
This fixes an issue where spawning an xwayland application from a
wayland window that survives a crash would fail.
By moving the logic here we no longer need to wait for kwin_wayland to
start before starting plasmashell or even ksmserver as all environment
variables are set. As long as the wrapper is ready we can continue
starting and clients will just block on connect.
That should still allow for both a lot of optimisations both for speed
and cleaning up the startplasma-wayland scripts.
This will be addressed in follow up patches.
Use of kwin_wayland directly with xwayland is still supported for
testing.
The initial goal of kwin_wrapper was that it would set up all relevant
environment variables that will be used by the clients of kwin.
This meant having to cache old variables before we overrode them and
pass additional settings to the backends for the old wayland_display. It
works, but with X11 about to move too ends up being unnecessarily
complex. In hindsight it's easier for kwin to have the environment
represent the platform it is currently on, and have kwin explicitly set
variables in the QProcessEnvironment of the session it forks itnto.
This patch is changed so that we set the wayland socket name used by the
wrapper explicitly which is then used by the process environment kwin
uses for the main session.
If a window is on several desktops, AbstractClient::desktop() will
return the id of the last desktop.
For example, if a window is on virtual desktops A and B, the desktop()
function will return the id of desktop B. This can be the culprit for
bugs such as window snapping not working as expected when moving a
window on virtual desktop A, e.g.
- moved window is on desktops A, and C. desktop() returns the id of C
- snap candidate (l) is on desktops A, and B. desktop() returns the id
of B
Even though the snap candidate window and the moved window are both on
the same desktop (A), the moved window won't be snapped because the
desktop() function returns garbage values.
To fix that, the workspace needs to check whether the window is on the
current desktop.
For what it's worth, that's also how the workspace handles windows being
on multiple activities.
This patch has one behavioral change - raiseOrLowerClient() will not
work if the client is not on the current virtual desktop.
However, raiseOrLowerClient() can be called only in two cases:
* user triggers the raise or lower shortcut for the active client. Since
the active client is on the current virtual desktop, it's not an issue
* an x11 window restacks itself. It makes no sense if an x11 window
restacks itself while it's inactive or not on current virtual desktop.
Also, the Opposite restack mode is rarely used, some window managers
don't even bother implementing it. So, having such a constraint should
not be a problem.
The main reason for not allowing raiseOrLowerClient() for windows that
are not on the current virtual desktop is that a window can be on
multiple virtual desktops. If a window is on A and B virtual desktops,
the only logical option is to toggle stacking position if the window is
on the current desktop. It's the only viable option as kwin does not
maintain per virtual desktop stacking order.
IN_FORMATS contains information about which buffer formats can be
scanned out with a given drm plane. Using these plane-specific
format+modifier combinations as well as explicit modifiers in
general can yield bandwidth and performance improvements,
especially in multi-gpu systems.
We use surfaceless contexts with internal windows. We also require
the EGL_KHR_surfaceless_context extension for making context current
without outputs.
Arguably, we could use pbuffers, but since mainstream drivers (Mesa and
NVIDIA) support surfaceless contexts, the extra complexity doesn't buy
us anything.
This reverts commit ac16bef409.
It causes crashes and color channels seem to be swapped.
GLTexture::toImage() needs more work before it can be used in the
screenshot effect, or maybe dropped.
In a recent refactor screens are only created when our xdg_surface has
been acked. This leaves a window where m_waylandCursor is null and
events are still being processed.
With per-screen rendering, every output may have different EGLConfig.
Having a single global EGLConfig doesn't work out well.
This change removes Platform::sceneEglConfig(). It's used primarily to
create the global share context. In hindsight, the global share context
can be created without EGLConfig as it's never made current.
EGL_NO_CONFIG_KHR is part of EGL_KHR_no_config_context extension, which
is supported by both Mesa and NVIDIA driver so it should be safe to make
it mandatory.
At this point, desktop() is -1 since the client hasn't been moved to any
virtual desktop yet.
It seems like checking desktop() is a typo. It makes more sense to check
desktopId.
This ports relevant apis in WindowRules to the VirtualDesktop class.
If the client has no desktop rule, the desktop list that has been passed
to the checkDesktops() function will be returned.
If the client has a desktop window rule, the checkDesktop() function
will return a list with a single VirtualDesktop object or none if the
window is forced to be on all virtual desktops.
The main motivation behind this change is to reduce the number of usages
of int-based virtual desktop apis. int-based desktop ids are highly
unreliable. For example, if a new virtual desktop is inserted in the
middle or removed in the middle, the desktop ids will change. This makes
working with virtual desktops code more challenging due to its behavior.
This is not an issue with VirtualDesktop objects.
This change avoids unnecessary copying of QImage data when updating
textures using QImages that have non-ARGB32_Premultiplied formats.
There are three cases where texture unpacking can not be done/is
not worth doing: if GLES is used, and the extension for unpacking
subimages is not supported; if the entire image is being updated;
or if a format conversion needs to be done, in which case only the
region to update will have its format converted, and the resulting
image can be passed directly to glTexSubImage2d without setting
unpacking parameters.
These repaints were added to fix visual artifacts that appear when
shadow is removed, but since items schedule repaints when needed, we can
remove these two.
Wayland- and X11-specific code paths are not needed.
If the window is on all virtual desktops, Toplevel::desktops() will be
an empty list.
If the window is on a particular virtual desktop, Toplevel::desktops()
will contain that desktop. On X11, the desktops list can have at most
only one item.
The old calculation ignored the render time and safety margin of the
frame scheduling algorithm, which makes VRR activate properly only when
the refresh rate is much lower than the maximum refresh rate.
This further decouples scene items from scene windows. The SurfaceItem
still needs to access the underlying window, I would like to re-iterate
over that later.
With this change, it will be possible to introduce WindowItem factory
function in the Toplevel class.
toplevel.h is included in many places. Changing virtualdesktops.h may
trigger rebuild of all kwin.
With this change, only cpp files that use virtualdesktops.h will need to
be recompiled.
The main idea behind _NET_WM_FRAME_OVERLAP is to extend the borders of
the server-side decoration so the application can draw on top of it. It
was inspired by similar feature in Windows.
However, _NET_WM_FRAME_OVERLAP is basically unused. Neither GTK nor Qt
support it and I have never seen any application that uses it.
At the moment, kwin is the only compositing window manager that supports
_NET_WM_FRAME_OVERLAP. Neither mutter nor compiz nor compton and so on
support it.
Since _NET_WM_FRAME_OVERLAP is practically unused, there's no point for
keeping supporting it.
This change shouldn't affect any existing app as _NET_WM_FRAME_OVERLAP
atom is not listed in _NET_SUPPORTED.
This ensures that surface role objects can be still accessed when either
XdgToplevelClient or XdgPopupClient is destroyed. As far as I know, it
doesn't cause any problems right now, but this makes resource destruction
handling consistent, we tend to perform cleanup in aboutToBeDestroyed
signal slots.
SceneOpenGLShadow::prepareBackend used to use QImage::Format_Indexed8,
plus a special code path in GLTexture, to create single-channel OpenGL textures.
Now that Qt supports QImage::Format_Alpha8, this workaround can be removed.
Currently, a vertex coordinate is transformed first, then mapped to
the global screen coordinates. This causes a problem if a transform
is applied to the top-most item and child items are not at (0, 0).
For example, scaled windows may have popping out sub-surfaces, etc.
With this change, the item transforms will be computed differently. For
example, if the parent item is transformed, a child's transform will
look as follows
[Parent's translation][Parent's transform][Child's translation]
instead of
[Parent's translation][Child's translation][Parent's transform]
In the future, I'd like to get rid of the Item::setTransform() call in
OpenGLWindow::performPaint() and have either AnimationEffect or
libkwineffects call Item::setTransform().
BUG: 440201
Deleting QQuickWindow will force any remaining runnables to complete.
This is important for any items (such as our new ThumbnailItem) that
deletes resources in queued cleanups.
We need to invoke this manually whilst we still have an active render
control with a valid context, otherwise remaining runnables will no-op.
We also then want to manually delete our scene contents before the view
so they're not orphaned temporarily.
This fixes a memory leak observed with the new Overview effect.
If a sub-surface should be considered unmapped, make the corresponding
item invisible.
Note that this must apply only to sub-surfaces. Whether the main surface
should be visible is up to kwin. It may want to play an animation when
the toplevel surface is unmapped, etc.
In GLTexture::update, reuse the mechanism from the GLTexture(QImage, ...)
constructor to upload QImage data directly when the QImage format
has compatible GL format and type codes. Before this change, all QImage
formats other than ARGB32_Premultiplied required a format conversion.
As per the xdg-shell specification, the compositor can only attach
a wl_buffer to an xdg_surface once the compositor has sent an
xdg_surface.configure event. Previously, there was a race condition
in which WaylandOutput objects were added/enabled on creation, making
it possible for the EglWaylandOutputs to be set up and for
EglWaylandBackend to draw a frame (thereby attaching a buffer), all
before the xdg_surface.configure configure event was received.
Compositors other than kwin would then send an unconfigured buffer
error and close the connection.
This commit avoids the problem by not marking the WaylandBackend
ready for use until all the output surfaces constructed at startup
have received their initial configure event. (In practice, this
takes one additional roundtrip.)
We're porting away from using plugin keywords (and have done that for
the breeze and oxygen decoration). However to allow that we need to
adjust the loading code.
Keep the old codepath for compatibility.
BUG: 440786
Blending is quite expensive especially with software rendering.
In the case of Firefox on Wayland, it uses a ARGB8888 buffer but marks the
entire surface as opaque, so the alpha channel can be ignored.
CCBUG: 440386
When the last output gets disconnected, create a virtual output as a
placeholder until we have access to a physical output again. While
this placecholder never gets rendered to, with virtual outputs in
general that is possible (with gbm and qpainter atm) and can be done
for future use cases like wireless displays.
CCBUG: 420160
CCBUG: 438839
QImage is implicitly shared. However, methods such as QImage::bits() may
detach. In order to avoid the detach, one either needs make the image
const or use QImage::constBits() method.
Currently, the GLTexture class uses QImage::bits() all over the place.
It prevents implicit detaching by storing images in const variables. Such
code is fragile. Adding an intermediate (optional) conversion step may
result in odd performance regressions.
Currently, the shape region is not copied to the Deleted. If either
SurfaceItemX11 or SurfaceItemXwayland needs to build quads for a shaped
window, it won't be able to do so properly because the corresponding
x11 window is long time gone.
If the shape region changes before the window is unmapped, you may still
see visual artifacts. Unfortunately, the only way to fix that bug is to
switch to wayland.
BUG: 440001
BUG: 438458
BUG: 435378
https://invent.kde.org/plasma/kwin/-/merge_requests/1220
This reverts commit 44ad9437c4 because it
breaks build:
platforms/x11/common/eglonxbackend.cpp:224:66: error: cannot initialize a parameter of type 'EGLNativeWindowType' (aka 'unsigned long') with an rvalue of type 'xcb_window_t *' (aka 'unsigned int *')
surface = eglCreateWindowSurface(eglDisplay(), config(), &window, nullptr);
^~~~~~~
It is perfectly valid to have a case where an item exists but has no
window. During these times the item will never be rendered.
Rather than guard in updateOffscreenTexture, it's more economical to
disable the frame rendering in the first place. Especially as then it's
easy to extend to item visibility.
BUG: 440318
Makes it possible to apply the dpms settings per screen instead of
applying it to all of them, which is wrong at many levels.
Will be even more important with other effects like rotation.
If kwin is explicitly restarted (kwin_wayland --replace) we reset the
crash count so that you can run it more than 10 times without exiting to
the logout screen.
Resetting to 0 causes a issue as that triggers ksplash to be shown
again.
BUG: 434489
We inintially created the wrapper to be light so avoided the QtCore
dependency and did it all in C.
In hindsight changing requirements means we want to add several more
features in here. The first step is to port to a more readable language
and toolkit.
Currently, the entire screen will be repainted when using the qpainter
render backend. With this change, kwin will repaint only the dirty parts
on the screen.
A better alternative is to return the damage region in the beginFrame()
function. This way, the render backend can force full screen repaints or
indicate what parts of the buffer needs to be repainted (for buffer age)
The main motivation behind the split is to simplify client buffer code
and allow adding new features easier, for example referencing the shm
pool when a shm buffer is destroyed, or monitoring for readable linux
dmabuf file descriptors, etc.
Also, a referenced ClientBuffer cannot be destroyed, unlike the old
BufferInterface.
If some popups of active window present, there was glitches on switching
such as stale popups or the popup happened below window.
Dismissing all the popups solves the problem.
BUG: 431046
If window quads need to be generated after the wl_surface is destroyed,
the SurfaceItemWayland::mapToBuffer() function will return wrong values.
In order to fix that, we need to store the last surface-to-buffer matrix
in SurfaceItem.
These appear to be remnants from a time where the current tabs were individual KCMs.
Remove some unneeded stuff and convert the only relevant registration to the normal K_PLUGIN_FACTORY macro
Since we adapted inputmethod to support methods like ibus, the input
method can be active but not have a visible panel.
This includes an extra property that will indicate us if the panel is
visible at any time. This will allow us to properly render the virtual
keyboard hide button in Plasma Mobile (or wherever we need it).
So far calling setActive(true) would issue a deactivation then another
activation. This sometimes makes maliit crash and we can achieve the
same result just by just issuing a reset.
