/**
* atk_object_factory_invalidate:
* @factory: an #AtkObjectFactory to invalidate
*
* Inform @factory that it is no longer being used to create
* accessibles. When called, @factory may need to inform
* #AtkObjects which it has created that they need to be re-instantiated.
* Note: primarily used for runtime replacement of #AtkObjectFactorys
* in object registries.
**/
void
atk_object_factory_invalidate (AtkObjectFactory *factory)
{
AtkObjectFactoryClass *klass;
g_return_if_fail (ATK_OBJECT_FACTORY (factory));
klass = ATK_OBJECT_FACTORY_GET_CLASS (factory);
if (klass->invalidate)
(klass->invalidate) (factory);
}
/**
* atk_object_factory_get_accessible_type:
* @factory: an #AtkObjectFactory
*
* Gets the GType of the accessible which is created by the factory.
* Returns: the type of the accessible which is created by the @factory.
* The value G_TYPE_INVALID is returned if no type if found.
**/
GType
atk_object_factory_get_accessible_type (AtkObjectFactory *factory)
{
AtkObjectFactoryClass *klass;
g_return_val_if_fail (ATK_OBJECT_FACTORY (factory), G_TYPE_INVALID);
klass = ATK_OBJECT_FACTORY_GET_CLASS (factory);
if (klass->get_accessible_type)
return (klass->get_accessible_type) ();
else
return G_TYPE_INVALID;
}
/**
* atk_registry_get_factory:
* @registry: an #AtkRegistry
* @type: a #GType with which to look up the associated #AtkObjectFactory
*
* Gets an #AtkObjectFactory appropriate for creating #AtkObjects
* appropriate for @type.
*
* Returns: an #AtkObjectFactory appropriate for creating #AtkObjects
* appropriate for @type.
**/
AtkObjectFactory*
atk_registry_get_factory (AtkRegistry *registry,
GType type)
{
gpointer factory_pointer = NULL;
GType factory_type;
factory_type = atk_registry_get_factory_type (registry, type);
if (factory_type == G_TYPE_INVALID)
{
/* Factory type has not been specified for this object type */
static AtkObjectFactory* default_factory = NULL;
if (!default_factory)
default_factory = atk_no_op_object_factory_new ();
return default_factory;
}
/* ask second hashtable for instance of factory type */
factory_pointer =
g_hash_table_lookup (registry->factory_singleton_cache,
(gpointer) factory_type);
/* if there isn't one already, create one and save it */
if (factory_pointer == NULL)
{
factory_pointer = g_type_create_instance (factory_type);
g_hash_table_insert (registry->factory_singleton_cache,
(gpointer) factory_type,
factory_pointer);
}
return ATK_OBJECT_FACTORY (factory_pointer);
}
