251bb45ec0
Prior to 67033b0a mutter was accidentally including sizes for configurations that were just focus state changes. This was not leading to any known problems on the client side, but it was causing issues in mutter itself when detecting whether a resize originated from the client or the server. Not including sizes in focus change configurations anymore however revealed a bug in gtk. It was storing the window size when in a fixed size mode (tiled/maximized/fullscreen), but not on any other server side resizes. It was then restoring this stored size whenever there was a new configuration without a size while in floating mode, i.e. the focus change configurations generated by mutter after 67033b0a. This change now addresses the issue 67033b0a was fixing in a way that restores the previous behavior of always including the size whenever sending a configuration. Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2091 Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2238>
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.