4a865424cd
With the introduction of untrottled event delivery to wayland clients, we moved the _clutter_event_process_filters() call outside of _clutter_process_event(). This also moved the processing of event filters outside of the timespan where the event is added to Clutters current_event stack, making Clutter.get_current_event() no longer available to anything happening inside mutters event filter. One thing that happens in mutters event filter is detecting and triggering keybindings like the alt-tab switcher. Now the alt-tab switcher has a special case where it finishes and activates a window right when the keybinding gets activated, relying on the current event time as the timestamp to activate the window. Now since the current event time is no longer available from inside mutters event filter, we'd pass 0 to meta_window_activate(), causing mutter to send a notification instead of actually activating the window. To fix this, also set a current_event for the ClutterContext when going through event filters, this makes sure Clutter.get_current_event_time() works when called inside keybinding handlers. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2327>
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.