67aab7c138
If the user maps eg. Alt+F2 to a pad button, the MetaInputSettings will send the full Alt press, F2 press, F2 release, Alt release sequence. However the keycode corresponding to Alt is found in level 1, so the Shift modifier gets unintendedly latched in addition to the Alt key press/release pair. We could probably improve keycode lookup heuristics so level=0 (and no modifier latching) is preferred, but we can do without it altogether for modifier keys.
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 GNOME Shell, the GNOME core user interface. It can also be run standalone, using the command "mutter", but just running plain mutter is only intended for debugging purposes.
License
Mutter is distributed under the terms of the GNU General Public License, version 2 or later. See the COPYING file for detalis.