907460376f
The overlay-key and locate-pointer-key are special keys. They can be used together with other keys to create a combo or they can be used as a single key. This means that we are treating a modifier key as a regular key while still allowing to use it as part of a combo. This requires a special treatment that we can't extend to an arbitrary list of keys. However, we would like to use both Super_L and Super_R to activate the overview. In order to allow this, introduce a new parsing mechanism. With the new mechanism, if we fail to parse the configured string, we will try to parse again by appending _L first and _R later. If both succeed then we will use their combos for handling the special key. With this in place, we can configure Super as overlay-key. The parsing of Super will fail, but Super_L and Super_R will succeed. Allowing us to use both. Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1277 Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4050>
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 first look at the GNOME Handbook and the documentation and API references below first.
Documentation
- Coding style and conventions
- Git conventions
- Code overview
- Building and Running
- Debugging
- Monitor configuration
- Multi-GPU
API Reference
- Meta: https://mutter.gnome.org/meta/
- Clutter: https://mutter.gnome.org/clutter/
- Cogl: https://mutter.gnome.org/cogl/
- Mtk: https://mutter.gnome.org/mtk/
Meetings
There are recurring meetings to discuss development of GNOME Shell, mutter and related components.
License
Mutter is distributed under the terms of the GNU General Public License, version 2 or later. See the COPYING file for detalis.