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Carlos Garnacho ad02ef6f44 x11: Drop unnecessary check to ignore crossing events 
This check dates all the way back to commit ac2aa5337d. At the time, the
window switcher was an actual X window, that could generate crossing events
if popped up under the pointer. Checking for this kind of crossing events
made sense back at the time in order not to break focus-follows-mouse as
it's been behaving for long.

But now, this UI is all Clutter widgetry, which in the worst case (X11
sessions, of course) it will update the stage window shape to make these
parts clickable. This happens in other places of code that do already
check for ignoring crossing events.

Underneath, this looked up for a Mutter-local GdkWindow of type
GDK_WINDOW_TEMP, only the main MetaFrames window matches those characteristics
nowadays, notably no window switcher popups. Since the remaining window is
never unmapped (until perhaps shutdown), the paths were functionally dead.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2175>
2022-12-01 20:10:53 +00:00
.gitlab/issue_templates gitlab: Add missing < in markdown comment tag 2020-02-14 03:10:28 +00:00
.gitlab-ci ci: Only launch a single mocked D-Bus environment for all tests 2022-11-01 21:04:21 +00:00
clutter clutter/actor: Stop transitions in children when removing 2022-11-25 10:26:52 +00:00
cogl g-i: Drop unneeded since/stability annotations 2022-11-22 13:32:52 +01:00
data data/udev: Don't disable KMS modifiers on newer i915 systems 2022-11-04 18:23:15 +00:00
doc docs/cogl-pango: Update urlmap 2022-11-22 13:32:52 +01:00
meson build: Replace custom post-install script 2022-11-19 02:21:05 +01:00
po Update Slovak translation 2022-11-22 22:15:02 +00:00
src x11: Drop unnecessary check to ignore crossing events 2022-12-01 20:10:53 +00:00
subprojects build: bump ABI to sysprof-capture-4 2020-07-28 11:13:30 -07:00
tools tools/get-state: Round refresh rates to three decimal places 2022-08-19 15:28:56 +00:00
.gitignore wayland: Remove Gtk primary selection protocol 2022-05-18 20:15:08 +00:00
.gitlab-ci.yml ci: Upgrade python-dbusmock 2022-11-25 21:32:06 +01:00
check-style.py ci: Avoid deadlock while reading uncrustify output 2021-08-23 17:40:43 +02:00
config.h.meson core: Make sound player feature optional 2022-09-02 08:04:31 +00:00
COPYING Updated obsolete FSF postal address in COPYING 2014-01-12 08:44:30 +07:00
HACKING.md docs: Update coding style link 2021-11-09 19:52:14 +01:00
meson_options.txt core: Make sound player feature optional 2022-09-02 08:04:31 +00:00
meson.build build: Replace custom post-install script 2022-11-19 02:21:05 +01:00
mutter.doap mutter.doap: Add marge-bot as a maintainer 2020-11-16 11:59:45 +01:00
NEWS Bump version to 43.1 2022-11-03 16:19:36 +01:00
README.md readme: Fix typo 2022-07-29 16:52:12 -04:00

README.md

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 of 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.

The API documentation is available at:

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.