clutter: Force an allocation on clone source if necessary

Since commit 0eab73dc, actors are only allocated when they are actually
visible. While this generally works well, it breaks - because of *course*
it does - ClutterClones when the clone source (or any of its ancestors)
is hidden.

Force an allocation in that case to allow the clone's paint to work as
intended.

https://gitlab.gnome.org/GNOME/mutter/issues/683
This commit is contained in:
Florian Müllner 2019-07-22 21:38:33 +02:00 committed by Georges Basile Stavracas Neto
parent 59fb26cb00
commit 08a3cbfc6c

View File

@ -252,6 +252,13 @@ clutter_clone_allocate (ClutterActor *self,
if (priv->clone_source == NULL)
return;
/* ClutterActor delays allocating until the actor is shown; however
* we cannot paint it correctly in that case, so force an allocation.
*/
if (clutter_actor_get_parent (priv->clone_source) != NULL &&
!clutter_actor_has_allocation (priv->clone_source))
clutter_actor_allocate_preferred_size (priv->clone_source, flags);
#if 0
/* XXX - this is wrong: ClutterClone cannot clone unparented
* actors, as it will break all invariants