Move the option from the mutter binary to libmutter, and
rename from --nested to --wayland.
This allows gnome-shell to drop the set_is_wayland_compositor()
call.
https://bugzilla.gnome.org/show_bug.cgi?id=707897
This adds a --nested option to request that mutter no longer run as a
classic X compositor with an output window mapped on the X Composite
Overlay Window and also not assume it is running directly under X.
The intention is that in this mode Mutter will itself launch a headless
X server and display output will be handled by Clutter and Cogl. This
will enable running Mutter nested as an application within an X session.
This patch introduces an internal meta_is_wayland_compositor() function
as a means to condition the way mutter operates when running as a
traditional X compositor vs running as a wayland compositor where the
compositor and display server are combined into a single process.
Later we also expect to add a --kms option as another way of enabling
this wayland compositor mode that will assume full control of the
display hardware instead of running as a nested application.
gnome-shell shouldn't announce to the session manager it's
"ready" until it's fully initialized. It currently tells
the session manager it's ready as soon as it hits the main
loop. This causes nautilus in classic mode to start before
we have workspaces initialized.
https://bugzilla.gnome.org/show_bug.cgi?id=694876
The "multiple plugins loaded at once" strategy was always a big fiction:
while it may be viable if you're super careful, it's fragile and requires
a bit of infrastructure that we would be better off without.
Note that for simplicity, we're keeping the MetaPluginManager, but it only
manages one plugin. A possible future cleanup would be to remove it entirely.
https://bugzilla.gnome.org/show_bug.cgi?id=676855
If mutter is going to be a "real" library, then it should install its
includes so that users can do
#include <meta/display.h>
rather than
#include <display.h>
So rename the includedir accordingly, move src/include to src/meta,
and fix up all internal references.
There were a handful of header files in src/include that were not
installed; this appears to have been part of a plan to keep core/,
ui/, and compositor/ from looking at each others' private includes,
but that wasn't really working anyway. So move all non-installed
headers back into core/ or ui/.
https://bugzilla.gnome.org/show_bug.cgi?id=643959
Move all of the mutter code into a new libmutter-wm.so, split its
main() method into meta_get_option_context(), meta_init() and
meta_run(), add methods for using in-process plugins, and add
libmutter-wm.pc pointing to the new library.
The mutter binary is now just a tiny program that links against
libmutter-wm. The --version and --mutter-plugins options are handled
at the mutter level, not in libmutter-wm, and a few strange unused
command-line options (--no-force-fullscreen and --no-tab-popup) have
been removed.
https://bugzilla.gnome.org/show_bug.cgi?id=643959
