9ebbf83e95
Replace a boolean argument and a temporary MetaWindow struct field with a `MetaPlaceFlag` passed where relevant. This includes `meta_window_move_resize_internal()` and `meta_window_constrain()`, as placement may happen during constraining, and also `meta_window_force_placement()`. The struct field (denied_focus_and_not_transient) was only ever set in meta_window_show(), before meta_window_force_placement(), and immediately unset as a side effect of that. In .._show() we'll always force placement if the window wasn't already placed, and in meta_window_constrain(), we'd only ever call meta_window_place() if the window wasn't already placed, meaning the variable would only ever be relevant during `meta_window_show()`. Having it as a flag makes that relationship and temporary state clearer. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3879>
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
API Reference
- Meta: https://mutter.gnome.org/meta/
- Clutter: https://mutter.gnome.org/clutter/
- Cally: https://mutter.gnome.org/cally/
- Cogl: https://mutter.gnome.org/cogl/
- CoglPango: https://mutter.gnome.org/cogl-pango/
- 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.