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Sebastian Keller e38db1237d window: Don't change workspaces of unmanaged windows
If the ancestor a window is transient for has already been unmanaged
when the window is activated via meta_window_activate_full while its
transient_for property still points to that ancestor, this will cause
the already unmanaged ancestor to get added to the windows workspace.
This is after the ancestor had its workspace set to NULL when it was
unmanaged, causing this to look like an actual workspace change. Once
the window has been added to the workspace, it will never be removed
again, because the it has already been unmanaged. This confuses things
like the shell window tracker and leads to phantom windows being
considered present for apps that are not even running anymore.

Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4184
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2003>
2021-09-29 09:34:30 +00:00
.gitlab/issue_templates gitlab: Add missing < in markdown comment tag 2020-02-14 03:10:28 +00:00
.gitlab-ci ci: Move test setup into template job 2021-09-05 00:15:56 +02:00
clutter clutter/stage: Remove inout from paint_to_buffer 2021-09-29 09:56:20 +02:00
cogl cogl/context: Report error if allocating fallback texture failed 2021-09-20 16:37:37 +00:00
data data: Stop exposing old panel-main-menu shortcut 2021-08-30 21:43:34 +00:00
doc Add MetaGravity and replace X11 equivalent with it 2020-02-29 21:01:50 +00:00
meson build: Check NEWS for version 2021-09-05 00:15:56 +02:00
po Update Vietnamese translation 2021-09-29 06:43:34 +00:00
src window: Don't change workspaces of unmanaged windows 2021-09-29 09:34:30 +00:00
subprojects build: bump ABI to sysprof-capture-4 2020-07-28 11:13:30 -07:00
tools tools: Add uncrustify config file 2021-08-22 21:26:16 +02:00
.gitignore build: bump ABI to sysprof-capture-4 2020-07-28 11:13:30 -07:00
.gitlab-ci.yml ci: Add dist job 2021-09-05 00:15:56 +02:00
check-style.py ci: Avoid deadlock while reading uncrustify output 2021-08-23 17:40:43 +02:00
config.h.meson meson: Add optional libsystemd dependency 2021-09-02 21:54:30 +00:00
COPYING Updated obsolete FSF postal address in COPYING 2014-01-12 08:44:30 +07:00
HACKING.md project: Add HACKING.md 2021-06-29 17:29:49 -03:00
meson_options.txt meson: Add optional libsystemd dependency 2021-09-02 21:54:30 +00:00
meson.build Bump version to 41.0 2021-09-19 12:41:29 +02:00
mutter.doap mutter.doap: Add marge-bot as a maintainer 2020-11-16 11:59:45 +01:00
NEWS Bump version to 41.0 2021-09-19 12:41:29 +02:00
README.md docs: Add README section for default branch 2021-07-18 23:14:16 +02:00

Mutter

Mutter is a Wayland display server and X11 window manager and compositor library.

When used as a Wayland display server, it runs on top of KMS and libinput. It implements the compositor side of the Wayland core protocol as well as various protocol extensions. It also has functionality related to running X11 applications using Xwayland.

When used on top of Xorg it acts as a X11 window manager and compositing manager.

It contains functionality related to, among other things, window management, window compositing, focus tracking, workspace management, keybindings and monitor configuration.

Internally it uses a fork of Cogl, a hardware acceleration abstraction library used to simplify usage of OpenGL pipelines, as well as a fork af Clutter, a scene graph and user interface toolkit.

Mutter is used by, for example, GNOME Shell, the GNOME core user interface, and by Gala, elementary OS's window manager. It can also be run standalone, using the command "mutter", but just running plain mutter is only intended for debugging purposes.

Contributing

To contribute, open merge requests at https://gitlab.gnome.org/GNOME/mutter.

It can be useful to look at the documentation available at the Wiki.

Coding style and conventions

See HACKING.md.

Git messages

Commit messages should follow the GNOME commit message guidelines. We require an URL to either an issue or a merge request in each commit. Try to always prefix commit subjects with a relevant topic, such as compositor: or clutter/actor:, and it's always better to write too much in the commit message body than too little.

Default branch

The default development branch is main. If you still have a local checkout under the old name, use:

git checkout master
git branch -m master main
git fetch
git branch --unset-upstream
git branch -u origin/main
git symbolic-ref refs/remotes/origin/HEAD refs/remotes/origin/main

License

Mutter is distributed under the terms of the GNU General Public License, version 2 or later. See the COPYING file for detalis.