While tilt is sent on X11, we're currently only sending pressure events and not tilt/rotation events on Wayland. Since Krita is still running in X11, and it's running through XWayland - it's technically a Wayland client and gets no tilt/rotation. This fixes that issue :-)
I saw !3231 which was working on complete Wayland tablet support, but it's been stagnating. I just wanted tilt & rotation support now, so I added a way to query capabilities from the `m_capabilities` variable on the private interface we already fetched.
Tested on Krita using the Tablet Debug Log.
The damaged signal is wired to the KWaylandServer::Cursor::changed
signal to indicate when the cursor image changes, makes sense.
But it can create issues if you repaint cursor SurfaceItem when the
SurfaceInterface::damaged signal is emitted. There might be other
signals that we need to wait for to invalidate SurfaceItem's state.
The SurfaceInterface::committed is a better signal. When it's emitted,
the surface commit has been completed. Technically, it's different from
the damaged signal, but in practice they are equivalent. GTK and Qt
always damage the cursor surface.
This reverts commit e60f26e0ab.
Cancelling the primary selection breaks text selection in applications
such as gedit. In those apps, you can't select text neither with your
mouse nor keyboard.
BUG: 461498
Currently, kwin blits the dnd icon onto the cursor image. This doesn't
work on mobile because the cursor is usually hidden there.
As a short term solution, put the dnd icon in the Scene. In the future,
it needs to be put in its own render layer.
It's somewhat popular for voice communication applications to support
Push-to-Talk. This means that the process itself expects to get all of
the system input. This behaviour albeit sound does not work on Wayland
systems.
This commit adds an option to let legacy X11 applications that assume
they will be getting all information to do so until these apps are
properly ported to the XDP GlobalShortcuts.
Having both selectionChanged and selectionCleared as well as
sendSelection and sendClearSelection complicates things. API users
have to connect to both signals, internally the methods have logic
to call themselves but in the end do the same as the protocols only
know send_selection.
As explained in [1], WL_SURFACE_ID is racy because wayland aggressively
reuses object ids. The xwayland-shell-v1 protocol intends to fix that by
two things:
* associating a serial number with each X11 window. This is to avoid
potential XID reuse
* referring to the wayland surface by the wl_surface rather than
specifying an object id
Unfortunately, we will have to maintain both legacy WL_SURFACE_ID and
WL_SURFACE_SERIAL for quiet some time until most instances of Xwayland
support the xwayland-shell-v1 protocol [2].
[1] https://gitlab.freedesktop.org/xorg/xserver/-/issues/1157
[2] https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/163
Due to being a compositor, kwin has to conform to some certain
interfaces. It means a lot of virtual functions and function tables to
integrate with C APIs. Naturally, we not always want to use every
argument in such functions.
Since we get -Wunused-parameter from -Wall, we have to plumb those
unused arguments in order to suppress compiler warnings at the moment.
However, I don't think that extra work is worth it. We cannot change or
alter prototypes in any way to fix the warning the desired way. Q_UNUSED
and similar macros are not good indicators of whether an argument is
used too, we tend to overlook putting or removing those macros. I've
also noticed that Q_UNUSED are not used to guide us with the removal no
longer needed parameters.
Therefore, I think it's worth adding -Wno-unused-parameter compiler
option to stop the compiler producing warnings about unused parameters.
It changes nothing except that we don't need to put Q_UNUSED anymore,
which can be really cumbersome sometimes. Note that it doesn't affect
unused variables, you'll still get a -Wunused-variable compiler warning
if a variable is unused.
With the pull approach, the XdgOutputV1Interface class doesn't have to
be exposed in the public api and can be made private to simplify the
implementation of the xdg-output-v1 protocol.
Currently, kwin will continue matching dnd actions after a drop. This is
mainly needed in order to make "ask" action work.
However, it appears like there are clients in the wild that update offer
actions after receiving wl_data_source.dnd_drop_performed and wl_data_device.drop
events.
One could argue that's a client bug, and perhaps it is, but the spec is
vague about that. In meanwhile, let's make sure that dnd action matching
is active after drop only when the selected data source action is "ask."
Use isNull on QSizeF to check for a zero delta instead of comparing it
with a default-constructed QSizeF, which in practice initializes to
(-1.0,-1.0). This caused relative motion events to be omitted if the
delta happened to be equal to (-1.0,-1.0), causing mouse jumping in some
applications.
BUG: 444510
Signed-off-by: John Brooks <john@fastquake.com>
The signal will be emitted if text-input-v3 applies a new enable state
if it's already enabled.
In Gtk's implementation, sending text_input_v3.enable for the second
time has the similar semantics of text-input-v2.showInputPanel. Try to
connect them together and add corresponding test.
See also: a95cfb1c45/gtk/gtkimcontextwayland.c (L555)
In some cases, stateCommitted may fire after a new surface being focused
and in correctly set input method to be inactive. This can be reproduced
by switch client between an active text input v3 client and text input
v2 client.
Client-side wrappers for input-method-unstable-v1 fail to build because
wl_keyboard_interface is referenced in the header file generated by
wayland-scanner.
Unfortunately, qt6_generate_wayland_protocol_client_sources() forces
--include-core-only argument, this is addressed in Qt 6.4.1, but in
meanwhile let's ship a copy of Qt6WaylandClientMacros.cmake file until
the required Qt version is out.
In libinput 1.19, three new pointer axis events were added in order to
provide support for high-resolution scrolling.
LIBINPUT_EVENT_POINTER_AXIS is de-facto deprecated and new users of
libinput should use instead SCROLL_WHEEL, SCROLL_FINGER, and
SCROLL_CONTINUOUS.
Discrete deltas were replaced with v120 delta values. 120 corresponds to
a single discrete delta. Smaller values correspond to "partial" wheel
ticks.
https://gitlab.freedesktop.org/wayland/wayland/-/merge_requests/72
Display::outputsIntersecting() computes the logical geometry using the
oriented mode size and the scale factor, but OutputInterface's scale
factor is ceil()ed up, so the resulting logical geometry can be incorrect.
BUG: 459733
This makes kwin's behavior consistent with other wayland compositors
(sway, GNOME Shell, etc) and it's reasonable to provide all the
information about the data source before wl_data_device.enter. It also
makes Firefox happier.
Relevant discussion upstream: https://gitlab.freedesktop.org/wayland/wayland/-/issues/322
CCBUG: 445661
We use the PMF syntax so the isValid() check is unnecessary as the
compiler will notify about wrong signal at compile time. It makes
writing autotests feel less boilerplaty.
Currently the Workspace processes output updates as they occur, e.g.
when the drm backend scans connectors, the Workspace will handle
hotplugged outputs one by one or if an output configuration changes the
mode of several outputs, the workspace will process output layout
updates one by one instead of handling it in one pass. The main reason
for the current behavior is simplicity.
However, that can create issues because it's possible that the output
layout will be temporarily in degenerate state and features such as
sticking windows to their outputs will be broken.
In order to fix that, this change makes the Workspace process batched
output updates. There are several challenges - disconnected outputs have
to be alive when the outputsQueried signal is emitted, the workspace
needs to determine what outputs have been added or removed on its own.
This makes it possible to show the input method when using a client that
doesn't support Wayland input methods (e.g. Xwayland).
This adds 2 dbus API entry points:
- activeClientSupported property: That tells us if the current client
doesn't support text-input-v*
- forceActivate method: forces the activation of the input method. This
configures the input method in a state that we can use to forward the
input method's keystrokes to the client, emulating a hardware keyboard.
BUG: 4399911
When a buffer is damaged via damage_buffer we have to map things to
logical space. This mapping can involve floating numbers, most notably
with the X11 override, right now that's via a QRegion which is always
integer. For damage we always want to round outwards to the larger
space, not to the nearest space.
Things such as Output, InputDevice and so on are made to be
multi-purpose. In order to make this separation more clear, this change
moves that code in the core directory. Some things still link to the
abstraction level above (kwin), they can be tackled in future refactors.
Ideally code in core/ should depend either on other code in core/ or
system libs.
Requires clients to have the
X-KDE-Wayland-Interfaces=kde_lockscreenallowed_v1 set in their desktop
file, then they will be able to use the kde_lockscreenallowed_v1
protocol to raise any surface above the lockscreen.
The protocol has only 1 method, raise_surface to do exactly that.
Makes it possible to implement
https://invent.kde.org/teams/plasma-mobile/issues/-/issues/98
If the wl_output has been removed, kwin can crash all Qt clients by
sending a wl_output.done event. Also, it makes no sense to send output
events after the corresponding output has been removed.
CCBUG: 451028
If multiple properties that affect the geometry change, then the
Output::geometryChanged() signal will be emitted multiple times, which
in its turn may force the Workspace to re-arrange windows, etc.
With this, the geometryChanged signal will be emitted in more expected
fashion only once as long as relevant property changes are batched.
If a drm lease is destroyed, e.g. the app has unexpectedly terminated,
only the finished event will be sent. The leaseRevoked signal won't be
emitted so the drm backend can't clean up DrmOutput::m_lease. Since
m_lease can be a dangling pointer, the drm backend can crash in
DrmGpu::updateOutputs() when it tries to determine if m_lease is still
alive and was not terminated by closing the lease fd on the client side.
It simplifies the dpms protocol implementation by making it use the
Output directly. It also removes unrelated code in WaylandOutput and
OutputInterface that can be used for future cleanups, e.g. removing
WaylandOutput.
This uses a sealed anonymous file (memfd) instead of a `QTemporaryFile`,
which is more efficient.
Ideally, this file was also reused if the keymap didn't change.
Signed-off-by: Victoria Fischer <victoria.fischer@mbition.io>
This uses a sealed anonymous file (memfd) instead of a `QTemporaryFile`,
which is more efficient.
Signed-off-by: Victoria Fischer <victoria.fischer@mbition.io>
This makes use of the new RamFile class to create a sealed anonymous
file to pass the keymap information to clients.
Since wl_seat version 7 [1] it is specified that clients must map the
received fd as `MAP_PRIVATE`. This means we can use `SEAL_WRITE`
on the file to prevent clients from tampering with it and subsequently
reuse the same file for all clients using wl_seat version 7 or above.
[1] 905c0a341d
Signed-off-by: Victoria Fischer <victoria.fischer@mbition.io>
This class can be used to create an anonymous file, for instance
to pass data between compositor and clients, through means of a
file descriptor, as is done in various Wayland protocols, notably
the keymap exchange.
It also implements sealing the file, so that it can be shared
between multiple clients without them being able to modify it.
If supported, memfd_create is used, otherwise a `QTemporaryFile`
is used.
Signed-off-by: Victoria Fischer <victoria.fischer@mbition.io>
More correct since QRegion models half open intervals (like QRect) and toPoint
rounds the coordinates. Fixes an issue where one could escape a pointer
confinement by just moving the mouse.
Since both output-management-v2 protocol implementation and the rest of
kwin live in the same place and the fact that kde-output-management-v2
is very plasma specific, we can move Platform::requestOutputsChange() to
the implementation of kde-output-management-v2 protocol, it simplifies
the code a bit and improve code encapsulation.
In order to further simplify kde-output-management-v2 protocol, this
change alters the behavior of the protocol so an output configuration
can be applied only once, which is a very reasonable behavior.
Use SurfaceInterface::inputSurfaceAt when deciding which surface are we
entering when sending a pointer event from a touch, in case it falls
onto a subsurface.
BUG: 452967
This way we make sure that we don't explode if for some reason the
surface is destroyed (e.g. it's closed).
This will make it work exactly like the other references to
SurfaceInterface.
BUG: 456817
With fractional scaling integer based logical geometry may not match
device pixels. Once we have a floating point base we can fix that. This
also is
important for our X11 scale override, with a scale of 2 we could
get logical sizes with halves.
We already have all input being floating point, this doubles down on it
for all remaining geometry.
- Outputs remain integer to ensure that any screen on the right remains
aligned.
- Placement also remains integer based for now.
- Repainting is untouched as we always expand outwards
(QRectF::toAdjustedRect().
- Decoration is untouched for now
- Rules are integer in the config, but floating in the adjusting/API
This should also be fine.
At some point we'll add a method to snap to the device pixel
grid. Effectively `round(value * dpr) / dpr` though right now things
mostly work.
This also gets rid of a lot of hacks for QRect right and bottom which
are very
confusing.
Parts to watch out in the port are:
QRectF::contains now includes edges
QRectF::right and bottom are now sane so previous hacks have to be
removed
QRectF(QPoint, QPoint) behaves differently for the same reason
QRectF::center too
In test results some adjusted values which are the result of
QRect.center because using QRectF's center should behave the same to the
user.
xdg_wm_base is a global that with a single instance in our high level
wrapper. Our surface wrapper needs to get the xdg_wm_base::Resource
instance on occastion.
Currently we go via wl_client for the mapping, but this breaks down
should a client bind wm_base twice.
BUG: 456349
The IdleDetector is an idle detection helper. Its purpose is to reduce
code duplication in our private KIdleTime plugin and the idle wayland
protocol, and make user activity simulation less error prone.
At the moment, the DrmLeaseOutput class inherits from the
KWaylandServer::DrmLeaseConnectionV1Interface class. While this works,
it's not a future-proof design. For example, kwin could also lease its
"desktop" outputs in order to let another wayland compositor run
alongside it.
Also, it's a good practice to prefer composition over inheritance.
In a74c436156, we changed behavior that
every commit() will be followed by a done(), which makes this test might
catch a different done() from server. Change the spy to make sure it
exhaust all other done before checking the one expected.
At the moment, dmabuf importing is scattered all over the place in kwin.
It would be great if we had one function that takes dma-buf attributes
and returns an EGLImage if successful.
As the first step, make linux-dmabuf-v1 implementation provide dmabuf
attrs compatible with KWin::DmaBufAttributes.
QSize() will construct an invalid size. An invalid size has width and
height set to -1. In other words, QSize() != QSize(0, 0). This can create
issues when computing the bounding rect of a surface that has invisible
subsurfaces.
For example, if the subsurface rect is QRect(0,0 -1x-1), the top-left
corner of the bounding rect will be affected.
In order to make computation of the bounding rect robust, initialize the
surface size to 0 explicitly.
BUG: 454535
In Gtk's text-input-v3 implementation it expect done to update the
client serial after every commit. Though it is unclear whether this is a
protocol requirements, do the same thing like mutter for more
compatiblity, especially Gtk3 is in EOL not likely to be patched any
time soon.
To do so, we will need to keep track of the last active preedit,
otherwise only send_done() will clear the preedit.
Behaviour was fixed in c3f5f8ce01. If an
item starts at 0,0 and is 100 pixels wide in normal geometry the 100th
pixel is not inside the rectangle.
SubSurface::testSurfaceAt was adjusted correctly but this was missed as
we test the same thing twice!
QRectF::contains includes all edges. If two subsurfaces are next to each
other ::contains will treat it as having a singularity where a value is
on 2 subsurfaces rather than either one of the other, which isn't what
we want for our purposes.
The unit test is extended but also featured some wrong values, the
biggest clue that it was wrong was that we used different test
co-ordiantes for surfaceContains and inputContains.
Anything in xcb_ structs are always in X local, all member variables
aside from buffers are in kwin local space.
This patch ignores a few paths that are not relevant on wayland.
This allows for compositor managed different co-ordinate space between kwin's
logical co-ordinate space and a client's logical co-ordinate space.
When combined with a modified kwin!1959 this allows us to set a DPI in xrdb and
mark all xwayland windows as being 2x (or other) and avoid upscales for xwayland
clients in a way that doesn't impact other wayland clients or require
third-party changes. Any use of fractional values is in layers we control
instead of over the wire. kwayland-server is the right place for this
abstraction as we need Outputs to differ on a per resource basis. Something we
can't control from within kwin.
Right now only protocols used by Xwayland are covered. If we covered
remaining protocols we can offer user-control on all remaining clients which
could open up other possibilities such as a user controlled dynamic resizing,
or adapt to possible future protocol changes with wayland scaling.
There are a few benefits to using smart pointers from the standard library:
- std::unique_ptr has move semantics. With move semantics, transfer of ownership
can be properly expressed
- std::shared_ptr is more efficient than QSharedPointer
- more developers are used to them, making contributions for newcomers easier
We're also already using a mix of both; because Qt shared pointers provide
no benefits, porting to standard smart pointers improves consistency in
the code base. Because of that, this commit ports most of the uses of QSharedPointer
to std::shared_ptr, and some uses of QScopedPointer to std::unique_ptr
At the moment, the data offer initializes supported and preferred action
to "none". But if the target doesn't accept anything the source
provides, the compositor may still need to send action events with "none"
This change makes data offer and data source provide dnd actions wrapped
in std::optional in order to indicate if they have been set explicitly.
Currently we guess the supported and preferred dnd actions in data offer
for version >= 3. This can create problems because kwin may not send the
right action events when the supported dnd actions actually change.
I am trying to cross-compile and since qtwaylandscanner_kde is used
during the build, I need to build a native version of the
qtwaylandscanner_kde tool first. This change allows building
qtwaylandscanner_kde as a standalone CMake project which the cross-build
can then be pointed at to find the host tool. If an explicit path to
qwaylandscanner_kde is not passed, we will try to use ExternalProject_Add
to build it. This approach was taken from ksyntaxhighlighting:
https://invent.kde.org/frameworks/syntax-highlighting/-/blob/master/src/indexer/CMakeLists.txt
This patch makes it significantly easier to cross-compile KWin, as we now
only need a native QtCore library instead of all the dependencies.
This makes KWin switch to in-tree copy of KWaylandServer codebase.
KWaylandServer namespace has been left as is. It will be addressed later
by renaming classes in order to fit in the KWin namespace.
Basically this is a well known issue in wayland for globals. If bind
comes after destroyed, it will raise a invalid global error. The common
practice is to delay the destroy of global. Similar technique is also
applied to wl_output.
CCBUG: 452435
The API of SurfaceInterface was changed so it always maintains an opaque
region.
At the surface commit, if the attached buffer is opaque, the whole
surface will be marked opaque. Otherwise, the specified opaque region
will be intersected with the surface rect.
If no mode has the current flag set, the first mode object will be
announced twice.
There's also no benefit from sending the current mode as last. If the
current mode changes, the compositor will send the current_mode event,
not the mode event.
BUG: 452318
Whilst a subsurface must have a parent at the time of creation, the
lifespan is not guaranteed afterwards.
It's a weird thing for a client to do, but we need to not crash
afterwards.
If the parent surface is destroyed we should consider the surface
unmapped.
BUG: 452044
In the current form any client committing multiple times without
attaching a buffer would unset the cached state and trigger an error.
It's legal (though weird) to commit multiple times before attaching a
buffer.
We should only reset the state if we commit an empty buffer after having
committed an existing buffer. This brings us in line with XdgShell.
Currently, if the pointer surface has to change between two surfaces,
the compositor must do the following
seat->setFocusedPointerSurface(nullptr);
seat->notifyPointerMotion(newPos);
seat->setFocusedPointerSurface(focus);
The pointer motion is needed so the enter event has correct position,
setFocusedPointerSurface(nullptr) is needed to avoid sending a bad
motion event before the leave event.
This change makes the pointer focus api less error prone by splitting
setFocusedPointerSurface() in two functions - notifyPointerEnter() and
notifyPointerLeave().
notifyPointerEnter() takes new focus surface as well as the position
where the pointer has entered the surface so the focus update can be
atomic and without any corner cases.
notifyPointerLeave() is used to clear pointer focus.
Consider the cases where we get a touch move or touch up but we never
received a touch down before.
In the case of move, we'll simulate a touchDown right there and move on
with reality.
In the case of touch up, we'll just ignore the event as simulating could
just be more confusing.
BUG: 450338
When dragging from one window to another, we may end up in a data_device
that didn't get "data_device_start_drag". In that case, the internal
touch point serial will be incorrect and we need to update it to the
serial from the seat. The serial stored in the seat is changed to
std::optional so we can properly check if it is set.
The SeatInterface cleans up currentSelection and currentPrimarySelection
when the AbstractDataSource::aboutToBeDestroyed() signal is emitted, but
since the data source and primary data source have parent objects, they
can be potentially destroyed without emitting the aboutToBeDestroyed()
signal and thus leaving dangling pointers in SeatInterface.
CCBUG: 449101
If the source rectangle is not set, we need to use the surface size
given by the attached buffer. It's computed as buffer size / scale, but
the buffer can also be transformed. In other words, we need to compute
the natural surface size as follows - buffer size / scale and transpose
the result if the buffer is rotated 90 or 270 degrees.
Usually, a client will only use text input v2/v3. Do not return the focused
surface for text input if it has no relevant text input resource.
If text-input object is created after surface get the focus, send
enter to this text input object. Ensure sendEnter and sendLeave always
appear in pair.
Also, use the same technique in text-input-v2 for text-input-v3 to
handle per resource's enable/disable state, and only send update to
enabled text-input-v3 object.
Currently drag-and-drop doesn't work on FreeBSD because relevant input
parts of kwayland-server are not compiled there.
HAVE_LINUX_INPUT_H is set to 0 on FreeBSD because linux/input.h is in
/usr/local/include and check_include_file() doesn't look there.
Regardless of that, as FreeBSD developers pointed out, including
linux/input.h is the recommended way to get input event codes so let's
make it a hard dependency.
