Joan Torres 754c834590 Add method to show if in headless mode
MetaBackend can now show whether it is in headless mode or not
using a vfunc is_headless.

Fallback of is_headless returns FALSE.

MetaBackendNative implements is_headless returning its
is_headless property.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2130>
2021-12-07 16:03:10 +00:00
..
2021-07-15 11:34:37 +02:00
2020-10-06 15:14:34 +02:00