My KWIN fork where I work on features like per-output virtual desktops
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Vlad Zahorodnii 9a4a960886 x11: Handle late sync request
X11Client implicitly relied on the finishInteractiveMoveResize() function
to call moveResize() to synchronize the move resize geometry with the
server geometry. However, after removing that moveResize(), X11Client
got slightly broken.

A resize sync request may arrive shortly after finishing resize. In
order to properly handle it, this change makes X11Client handle late
sync requests.

It also makes handling interactive resize on x11 similar to how it's
done on wayland.

The main problem with not letting X11Client finish interactive resize
is that the Toplevel::bufferGeometry() may end up with an outdated value
and SurfacePixmapX11 will fail to create due to a mismatch between
Toplevel::bufferGeometry() and the server side geometry of the frame
window.
2022-01-12 12:00:41 +00:00
autotests Make AbstractClient::titlebarPosition() return Qt::Edge 2022-01-04 15:57:42 +00:00
cmake/modules Don't put a trailing dot in set_package_properties 2021-10-30 01:51:40 +03:00
data Remove Xrender backend 2021-06-09 11:21:57 +03:00
doc doc: modernise HACKING -> CONTRIBUTING guidelines and information 2021-08-31 22:10:58 +00:00
kconf_update effects: Enable the scale effect by default 2022-01-05 08:26:36 +00:00
LICENSES Switch to SPDX license markers 2020-08-07 19:57:56 +00:00
src x11: Handle late sync request 2022-01-12 12:00:41 +00:00
tests Run clazy with qt-keywords fixit 2021-06-08 10:49:42 +03:00
.gitignore GIT_SILENT Add auto generated files to .gitignore 2021-05-03 14:58:25 +02:00
.gitlab-ci.yml Add GitLab CI 2021-11-27 03:10:09 +01:00
.kde-ci.yml autotests: Add breeze-icons to .kde-ci.yml 2021-11-29 11:44:24 +02:00
CMakeLists.txt Bump libepoxy to 1.3 2022-01-02 22:30:06 +02:00
CONTRIBUTING.md doc: modernise HACKING -> CONTRIBUTING guidelines and information 2021-08-31 22:10:58 +00:00
KWinDBusInterfaceConfig.cmake.in Expose org.kde.kwin.ColorCorrect.xml dbus file 2022-01-05 01:33:01 +00:00
logo.png
Mainpage.dox
plasma-kwin_wayland.service.in Re-enable systemd managed kwin 2021-12-02 13:25:50 +00:00
plasma-kwin_x11.service.in Update systemd units 2020-09-29 06:10:20 +00:00
README.md doc: modernise HACKING -> CONTRIBUTING guidelines and information 2021-08-31 22:10:58 +00:00

KWin

KWin is an easy to use, but flexible, composited Window Manager for Xorg windowing systems (Wayland, X11) on Linux. Its primary usage is in conjunction with a Desktop Shell (e.g. KDE Plasma Desktop). KWin is designed to go out of the way; users should not notice that they use a window manager at all. Nevertheless KWin provides a steep learning curve for advanced features, which are available, if they do not conflict with the primary mission. KWin does not have a dedicated targeted user group, but follows the targeted user group of the Desktop Shell using KWin as it's window manager.

KWin is not...

  • a standalone window manager (c.f. openbox, i3) and does not provide any functionality belonging to a Desktop Shell.
  • a replacement for window managers designed for use with a specific Desktop Shell (e.g. GNOME Shell)
  • a minimalistic window manager
  • designed for use without compositing or for X11 network transparency, though both are possible.

Contributing to KWin

Please refer to the contributing document for everything you need to know to get started contributing to KWin.

Contacting KWin development team

  • mailing list: kwin@kde.org
  • IRC: #kde-kwin on irc.libera.chat

Support

Application Developer

If you are an application developer having questions regarding windowing systems (either X11 or Wayland) please do not hesitate to contact us. Preferable through our mailing list. Ideally subscribe to the mailing list, so that your mail doesn't get stuck in the moderation queue.

End user

Please contact the support channels of your Linux distribution for user support. The KWin development team does not provide end user support.

Reporting bugs

Please use KDE's bugtracker and report for product KWin.

Guidelines for new features

A new Feature can only be added to KWin if:

  • it does not violate the primary missions as stated at the start of this document
  • it does not introduce instabilities
  • it is maintained, that is bugs are fixed in a timely manner (second next minor release) if it is not a corner case.
  • it works together with all existing features
  • it supports both single and multi screen (xrandr)
  • it adds a significant advantage
  • it is feature complete, that is supports at least all useful features from competitive implementations
  • it is not a special case for a small user group
  • it does not increase code complexity significantly
  • it does not affect KWin's license (GPLv2+)

All new added features are under probation, that is if any of the non-functional requirements as listed above do not hold true in the next two feature releases, the added feature will be removed again.

The same non functional requirements hold true for any kind of plugins (effects, scripts, etc.). It is suggested to use scripted plugins and distribute them separately.