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Marco Trevisan (Treviño) 7c1f3498fe window-props: Don't set override redirect windows as top-level parent
Java applications might use override-redirect windows as parent windows for
top-level windows, although this is not following the standard [1].

In such case, the first non-override-redirect child window that is created
was marked as being on_all_workspaces since the call to
should_be_on_all_workspaces() returns TRUE for its parent, and this even
though the on_all_workspaces_requested bit is unset.
When a further child of this window was added, it was set as not having a
workspace and not being on_all_workspaces, since the call to
should_be_on_all_workspaces() for its parent would return FALSE (unless if
it is in a different monitor, and the multiple-monitors workspaces are
disabled).

Since per commit 09bab98b we don't recompute the workspace if the
on_all_workspaces bit is unset, we could end up in a case where a window can
be nor in all the workspaces or in a specific workspace.

So let's just ignore the transient_for bit for a window if that points to an
override-redirect, using the x11 root window instead.

Add a stacking test to verify this scenario (was failing before of this
commit).

Fixes https://gitlab.gnome.org/GNOME/mutter/issues/885
https://gitlab.gnome.org/GNOME/mutter/merge_requests/895

[1] https://standards.freedesktop.org/wm-spec/wm-spec-latest.html#idm140200472512128


(cherry picked from commit bacbbbd628)
2019-11-07 16:21:37 +00:00
.gitlab-ci ci: Fix checking out gnome-shell on stable branches 2019-11-07 00:14:41 +01:00
clutter clutter/stage-view: Separate offscreen and shadowfb 2019-11-04 11:08:02 +01:00
cogl cogl-pango/meson.build: Remove extraneous quoting 2019-10-10 17:29:44 +08:00
data wayland: Add setting/api to check the policy to set up the X11 display 2019-08-06 00:41:36 +00:00
doc Remove obsolete .cvsignore files 2019-01-10 11:50:54 -02:00
meson build: Add postinstall script 2019-08-27 09:57:54 +00:00
po Update Catalan translation 2019-10-08 07:35:51 +02:00
src window-props: Don't set override redirect windows as top-level parent 2019-11-07 16:21:37 +00:00
tools tools: Remove obsolete ppa-magic.py 2018-11-30 11:12:12 +08:00
.gitignore project: Update gitignore 2019-01-10 11:50:54 -02:00
.gitlab-ci.yml ci: Change the without-native-backend to not build with Wayland too 2019-10-10 22:51:00 +00:00
config.h.meson main: Make process PR_SET_DUMPABLE 2019-09-27 14:27:09 +00:00
COPYING Updated obsolete FSF postal address in COPYING 2014-01-12 08:44:30 +07:00
meson_options.txt cogl: Add libsysprof capture based tracing 2019-05-31 11:55:56 -03:00
meson.build Bump version to 3.34.1 2019-10-08 14:55:28 +02:00
mutter.doap Replace Bugzilla by Gitlab URL in DOAP file 2018-12-15 23:50:01 +01:00
NEWS Bump version to 3.34.1 2019-10-08 14:55:28 +02:00
README.md README: Add contribution section 2019-02-14 15:38:46 +01:00

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.