5724310899
FLT_MIN is the smallest *positive* number above 0 that can be represented as floating point number. If this is used to initialize the maximum x/y coordinates of a rectangle, this will always be used if all x/y coordinates of the rectangle are negative. This means that picking at 0,0 will always be a hit for such rectangles. Since mutter creates such a window for server side decorations on X11, this window will always be picked at 0,0 preventing clicking/hovering the activities button in gnome-shell at that coordinate. Fixes https://gitlab.gnome.org/GNOME/mutter/issues/893 (cherry picked from commit 674f52ba747b59a7e72a4a18fea763ee9e617b7c)
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.