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Carlos Garnacho 26676a829e core: Change behavior of "application is alive" checks
Change some things in these "app is alive" checks:
- The dialog timeout is separated from the ping timeout, in order
  to show it again at a constant rate after dismissing, despite in
  flight pings. It still shows immediately after the first failed
  ping.
- As we want to tap further into is-alive logic, MetaWindow now
  made it a property, that other places in code can fetch and
  subscribe.
- Motion events trigger ping (as long as there was none other in
  flight for the same window), and are counted between ping and
  pong, in order to preemptively declare the window as not alive
  before there is trouble with event queues being overflown.

This results in a separate logic between "the application does
not respond" and "we are showing the close dialog" so that the
former may get triggered independently.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2122>
2021-12-07 17:15:21 +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 cogl: Remove cogl_texture_new_with_size 2021-12-07 15:32:21 +00:00
cogl cogl: Remove cogl_texture_new_with_size 2021-12-07 15:32:21 +00:00
data gschema: Turn experimental features into flags 2021-10-26 16:24:41 +00:00
doc startup: Optionally run (and exit with) a command 2021-11-04 04:18:32 -05:00
meson build: Check NEWS for version 2021-09-05 00:15:56 +02:00
po Update Occitan translation 2021-11-22 09:24:33 +00:00
src core: Change behavior of "application is alive" checks 2021-12-07 17:15:21 +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: Install libinput and wayland-protocols from git 2021-12-02 20:48:24 +00:00
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 docs: Update coding style link 2021-11-09 19:52:14 +01:00
meson_options.txt meson: Add optional libsystemd dependency 2021-09-02 21:54:30 +00:00
meson.build meson: Bump wayland-protocols to version 1.23 2021-12-02 20:48:24 +00:00
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.