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animation: Keep a weak reference on actors

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Actors, unlike objects, can effectively go away whilst being
animated - usually because of an explicit destoy().

The Animation created by clutter_actor_animate() and friends
should keep a weak reference on the actor and eventually
get rid of the animation itself in case the actor goes away
whilst being animated.
This commit is contained in:
Emmanuele Bassi 2009-11-24 16:59:24 +00:00
parent 1107fa8797
commit 328ce370e7
1 changed files with 13 additions and 0 deletions
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13
clutter/clutter-animation.c
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@ -194,6 +194,17 @@ G_DEFINE_TYPE_WITH_CODE (ClutterAnimation, clutter_animation, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_SCRIPTABLE,
clutter_scriptable_init));
static void
on_actor_dispose (gpointer user_data,
GObject *actor_pointer)
{
ClutterAnimation *self = user_data;
if (self->priv->object == actor_pointer)
g_object_unref (self);
}
static void
clutter_animation_real_completed (ClutterAnimation *self)
{
@ -235,6 +246,7 @@ clutter_animation_real_completed (ClutterAnimation *self)
if (animation == self)
{
g_object_set_qdata (priv->object, quark_object_animation, NULL);
g_object_weak_unref (priv->object, on_actor_dispose, self);
g_object_unref (animation);
}
}
@ -1840,6 +1852,7 @@ animation_create_for_actor (ClutterActor *actor)
animation = clutter_animation_new ();
clutter_animation_set_object (animation, object);
g_object_set_qdata (object, quark_object_animation, animation);
g_object_weak_ref (object, on_actor_dispose, animation);
CLUTTER_NOTE (ANIMATION,
"Created new Animation [%p] for actor [%p]",