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Robert Mader 92375c75f8 cleanup: Use g_clear_signal_handler() where possible
This is inspired by 98892391d7 where the usage of
`g_signal_handler_disconnect()` without resetting the corresponding
handler id later resulted in a bug. Using `g_clear_signal_handler()`
makes sure we avoid similar bugs and is almost always the better
alternative. We use it for new code, let's clean up the old code to
also use it.

A further benefit is that it can get called even if the passed id is
0, allowing us to remove a lot of now unnessecary checks, and the fact
that `g_clear_signal_handler()` checks for the right type size, forcing us
to clean up all places where we used `guint` instead of `gulong`.

No functional changes intended here and all changes should be trivial,
thus bundled in one big commit.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/940
2019-11-21 15:02:27 +00:00
.gitlab-ci ci: Fix checkout out gnome-shell on stable branches 2019-11-07 00:06:25 +01:00
clutter cleanup: Use g_clear_signal_handler() where possible 2019-11-21 15:02:27 +00:00
cogl cleanup: Use g_clear_signal_handler() where possible 2019-11-21 15:02:27 +00:00
data wayland: Add setting/api to check the policy to set up the X11 display 2019-08-06 00:41:36 +00:00
doc Remove obsolete .cvsignore files 2019-01-10 11:50:54 -02:00
meson build: Add postinstall script 2019-08-27 09:57:54 +00:00
po Update POTFILES.in 2019-10-15 19:18:30 +02:00
src cleanup: Use g_clear_signal_handler() where possible 2019-11-21 15:02:27 +00:00
tools tools: Remove obsolete ppa-magic.py 2018-11-30 11:12:12 +08:00
.gitignore project: Update gitignore 2019-01-10 11:50:54 -02:00
.gitlab-ci.yml ci: Update docker image to v3 2019-10-29 02:11:02 +01:00
config.h.meson main: Make process PR_SET_DUMPABLE 2019-09-27 14:27:09 +00:00
COPYING Updated obsolete FSF postal address in COPYING 2014-01-12 08:44:30 +07:00
meson_options.txt cogl: Add libsysprof capture based tracing 2019-05-31 11:55:56 -03:00
meson.build Add Graphene dependency 2019-10-16 11:38:13 +00:00
mutter.doap doap: Update list of maintainers 2019-10-16 12:33:47 +02:00
NEWS Bump version to 3.35.1 2019-10-12 20:35:43 +02:00
README.md README: Add contribution section 2019-02-14 15:38:46 +01:00

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.

The coding style used is primarily the GNU flavor of the GNOME coding style with some minor additions such as preferring stdint.h types over GLib fundamental types, and a soft 80 character line limit. However, in general, look at the file you're editing for inspiration.

Commit messages should follow the GNOME commit message guidelines. We require an URL to either an issue or a merge request in each commit.

License

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