This effect is used to implement the visual bell accessibility feature.
It allows to implement it on Wayland and significantly improve it on X11,
where it's currently rather broken.
It offers two modes:
- Inverting the colors (code is based off the invert effect)
- Flashing a solid color
Some distributions do not wish to build the KWin X11 backend as
they do not use it, even though they wish to maintain X11 support
for Xwayland when using KWin as a Wayland compositor.
Allow this choice by splitting the build flag and setting it up to
forcibly disable building the backend when building X11 code is
switched off.
This is to prevent disconnecting clients that sometimes struggle with
keeping up with the events that the compositor sends. 1 MiB was eyeballed.
Wayland's wire protocol consists of a stream of messages. Every message
consists of a header (2 words: 1 word for object id, the other word
specifies the message size + event/request opcode) and the arguments.
Considering the compositor sending motion events generated by a mouse
with 1000Hz polling rate, we have
- wl_pointer.motion event size: (4 bytes for serial + 4 bytes for x +
4 bytes for y + 8 bytes for header) = 20 bytes
- wl_pointer.frame event size: 8 bytes for header
So in total, if the client freezes for a second, the client buffer size
should be at least (20 + 8) * 1000 / 1024 = 27 KiB. 1 MiB corresponds to
the client not processing the motion events for approximately 30 seconds.
Enabling this feature makes Xwayland send xtest events via
the remote desktop portal and libei.
XWayland will create a new session for each X client (it keeps
contexts around and reuses them if the cmdline matches, so not
every xdotool invocation produces a new portal prompt).
This adds a libeis backend via plugin which supports clients sending
emulated input events. No public listening socket is exposed,
clients are expected to go through the RemoteDesktop portal.
In order to restrict the device types available to clients
according to what was approved via the portal a separate eis
context per portal request is created. The communication with
the portal happens through a simple dbus interface where cookies
are handed out for each eis context so the portal can inform KWin
when the portal session is closed/should end.
Now that we have Wayland around, there's a whole branch of dependencies
that shouldn't be necessary anymore.
This allows to build KWin without all of it, allowing us to have a much
more compact alignment for cases where all the legacy software isn't
necessary anymore.
Bundle KWindowSystem X11-specific headers into it too, since it's part
of the same process.
Signed-off-by: Victoria Fischer <victoria.fischer@mbition.io>
Allows to notify systemd whether kwin is still running and possibly
restart the service if it stops responding.
Use Type=notify-reload to watch the kwin service. This will make it so
we receive SIGHUP rather than SIGTERM on the wrapper which we can handle
gracefully and stop the kwin process and restart as expected.
https://www.freedesktop.org/software/systemd/man/latest/systemd.service.html
Signed-off-by: Victoria Fischer <victoria.fischer@mbition.io>
kwin_wayland has become unstable. Sometimes it works fine, sometimes it
is randomly killed. Things are quite bad after kwin_wayland --replace.
This reverts commit 71ade59f4b.
Allows to notify systemd whether kwin is still running and possibly
restart the service if it stops responding.
Use Type=notify-reload to watch the kwin service. This will make it so
we receive SIGHUP rather than SIGTERM on the wrapper which we can handle
gracefully and stop the kwin process and restart as expected.
https://www.freedesktop.org/software/systemd/man/latest/systemd.service.html
Signed-off-by: Victoria Fischer <victoria.fischer@mbition.io>
This overhauls the kill prompt UI to make it more modern and more
easily to grasp.
* Reduce the amount of text and redundancy.
Give the window a title and drop the "app is not responding" heading.
Try to remove the application name from the displayed window title.
Also use the bold emphasis used in other places like deleting files.
* Use the application icon if available with a warning overlay.
This makes it easier to grasp which application it's talking about.
* Move technical information (like PID and hostname) into an
expandable "Details" section.
KGuiAddons has been implicitly pulled in by KConfigWidgets already.
Instead of an external service (like KScreen) storing and restoring output configurations,
with this commit KWin takes over that responsibility. This allows it to, among other things,
generate appropriate configs for new sets of outputs immediately, and take KWin-internal information
about outputs into account when generating them.
CCBUG: 474021
CCBUG: 469653
CCBUG: 466342
CCBUG: 470863
CCBUG: 466556
BUG: 466208
BUG: 455082
BUG: 457430
Merges the desktop grid and overview effects together in a new three-state one;
you can switch between them with a certain shortcut or gesture, and you can also
still access either the desktop grid or overview directly.
Default shortcuts are also updated to be Meta+G for Grid, Meta+W for Overview,
Meta+Tab to switch between the three states and Meta+Shift+Tab to cycle in the
opposite direction.
BUG: 474044
BUG: 460661
BUG: 460774
BUG: 456572
BUG: 449601
BUG: 450262
BUG: 449801
BUG: 461510
BUG: 463886
BUG: 459754
BUG: 459749
BUG: 459748
BUG: 459467
FIXED-IN: 6.0
