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clutter/actor: Only allocate when actor is mapped, not only visible

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In theory there's no big difference between only handling mapped actors
vs only handling visible actors in clutter_actor_allocate(): The
function is called recursively starting with an actor that is attached
to a stage, so it should only be called on mapped actors anyway.

The behavior of skipping hidden actors was introduced as an optimization
with commit 0eab73dc. Since the last commit, we handle
enable_paint_unmapped a bit better and don't do unnecessary work when
mapping or unmapping, so we can now be a bit stricter enforcing our
invariants and only allow mapped actors in clutter_actor_allocate().

We need to exclude toplevel actors from this check since the stage has a
very different mapped state than normal actors, depending on the
mappedness of the x11 window. Also we need to make an exception for
clones (of course...): Those need their source actor to have an
allocation, which means they might try to force-allocate it, and in that
case we shouldn't bail out of clutter_actor_allocate().

Also moving the clutter_actor_queue_relayout() call from
clutter_actor_real_show() to clutter_actor_real_map() seems to fix a bug
where we don't queue redraws/relayouts on children when a parent gets
shown.

Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2973

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1366
This commit is contained in:
Jonas Dreßler 2020-10-16 23:29:02 +02:00 committed by Carlos Garnacho
parent 717b857bd8
commit 3bca29f303
1 changed files with 14 additions and 19 deletions
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33
clutter/clutter/clutter-actor.c
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@ -1635,6 +1635,13 @@ clutter_actor_real_map (ClutterActor *self)
priv->needs_update_stage_views = FALSE;
queue_update_stage_views (self);
}
/* Avoid the early return in clutter_actor_queue_relayout() */
priv->needs_width_request = FALSE;
priv->needs_height_request = FALSE;
priv->needs_allocation = FALSE;
clutter_actor_queue_relayout (self);
}
/* notify on parent mapped before potentially mapping
@ -1742,6 +1749,10 @@ clutter_actor_real_unmap (ClutterActor *self)
*/
_clutter_paint_volume_init_static (&priv->last_paint_volume, NULL);
priv->last_paint_volume_valid = TRUE;
if (priv->parent && !CLUTTER_ACTOR_IN_DESTRUCTION (priv->parent) &&
(!(priv->parent->flags & CLUTTER_ACTOR_NO_LAYOUT)))
clutter_actor_queue_relayout (priv->parent);
}
/* notify on parent mapped after potentially unmapping
@ -1799,8 +1810,6 @@ clutter_actor_queue_shallow_relayout (ClutterActor *self)
static void
clutter_actor_real_show (ClutterActor *self)
{
ClutterActorPrivate *priv = self->priv;
if (CLUTTER_ACTOR_IS_VISIBLE (self))
return;
@ -1811,13 +1820,6 @@ clutter_actor_real_show (ClutterActor *self)
* and the branch of the scene graph is in a stable state
*/
clutter_actor_update_map_state (self, MAP_STATE_CHECK);
/* Avoid the early return in clutter_actor_queue_relayout() */
priv->needs_width_request = FALSE;
priv->needs_height_request = FALSE;
priv->needs_allocation = FALSE;
clutter_actor_queue_relayout (self);
}
static inline void
@ -1938,8 +1940,6 @@ clutter_actor_is_visible (ClutterActor *self)
static void
clutter_actor_real_hide (ClutterActor *self)
{
ClutterActorPrivate *priv = self->priv;
if (!CLUTTER_ACTOR_IS_VISIBLE (self))
return;
@ -1950,13 +1950,6 @@ clutter_actor_real_hide (ClutterActor *self)
* and the branch of the scene graph is in a stable state
*/
clutter_actor_update_map_state (self, MAP_STATE_CHECK);
/* we queue a relayout unless the actor is inside a
* container that explicitly told us not to
*/
if (priv->parent != NULL &&
(!(priv->parent->flags & CLUTTER_ACTOR_NO_LAYOUT)))
clutter_actor_queue_relayout (priv->parent);
}
/**
@ -9576,7 +9569,9 @@ clutter_actor_allocate (ClutterActor *self,
? priv->parent->priv->absolute_origin_changed
: FALSE;
if (!CLUTTER_ACTOR_IS_VISIBLE (self))
if (!CLUTTER_ACTOR_IS_TOPLEVEL (self) &&
!CLUTTER_ACTOR_IS_MAPPED (self) &&
!clutter_actor_has_mapped_clones (self))
{
if (priv->absolute_origin_changed)
{