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actor: Add ::transitions-completed signal

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While you can get a per-transition notification of completion, it can be
convenient to also have a way to notify that all the transitions
involving an actor are complete. A simple signal triggered by the
removal of the last transition fits the bill pretty neatly.
This commit is contained in:
Emmanuele Bassi 2012-03-18 08:07:56 +00:00
parent a37ec4bd34
commit 103438cfe2
1 changed files with 33 additions and 1 deletions
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34
clutter/clutter-actor.c
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@ -791,6 +791,7 @@ enum
ENTER_EVENT,
LEAVE_EVENT,
ALLOCATION_CHANGED,
TRANSITIONS_COMPLETED,
LAST_SIGNAL
};
@ -6958,6 +6959,24 @@ clutter_actor_class_init (ClutterActorClass *klass)
G_TYPE_NONE, 2,
CLUTTER_TYPE_ACTOR_BOX | G_SIGNAL_TYPE_STATIC_SCOPE,
CLUTTER_TYPE_ALLOCATION_FLAGS);
/**
* ClutterActor::transitions-completed:
* @actor: a #ClutterActor
*
* The ::transitions-completed signal is emitted once all transitions
* involving @actor are complete.
*
* Since: 1.10
*/
actor_signals[TRANSITIONS_COMPLETED] =
g_signal_new (I_("transitions-completed"),
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
_clutter_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static void
@ -16954,12 +16973,25 @@ static void
on_transition_completed (ClutterTransition *transition,
TransitionClosure *clos)
{
ClutterActor *actor = clos->actor;
ClutterAnimationInfo *info;
info = _clutter_actor_get_animation_info (clos->actor);
info = _clutter_actor_get_animation_info (actor);
/* this will take care of cleaning clos for us */
g_hash_table_remove (info->transitions, clos->name);
/* if it's the last transition then we clean up */
if (g_hash_table_size (info->transitions) == 0)
{
g_hash_table_unref (info->transitions);
info->transitions = NULL;
CLUTTER_NOTE (ANIMATION, "Transitions for '%s' completed",
_clutter_actor_get_debug_name (actor));
g_signal_emit (actor, actor_signals[TRANSITIONS_COMPLETED], 0);
}
}
void