554644f9e0
This changes how asynchronous window configuration works. Prior to this commit, it worked by MetaWindowWayland remembering the last configuration it sent, then when the Wayland client got back to it, it tried to figure out whether it was a acknowledgment of the configuration or not, and finish the move. This failed if the client had acknowledged a configuration older than the last one sent, and it had hacks to somewhat deal with wl_shell's lack of configuration serial numbers. This commits scraps that and makes the MetaWindowWayland take ownership of sent configurations, including generating serial numbers. The wl_shell implementation is changed to emulate serial numbers (assuming each commit acknowledges the last sent configure event). Each configuration sent to the client is kept around until the client one. At this point, the position used for that particular configuration is used when applying the acknowledged state, meaning cases where we have already sent a new configuration when the client acknowledges a previous one, we'll still use the correct position for the window. https://gitlab.gnome.org/GNOME/mutter/merge_requests/907
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.