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/* ATK - Accessibility Toolkit
* Copyright 2001 Sun Microsystems Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "atknoopobjectfactory.h"
#include "atkobjectfactory.h"
/**
* AtkObjectFactory:
*
* The base object class for a factory used to
* create accessible objects for objects of a specific GType.
*
* This class is the base object class for a factory used to create an
* accessible object for a specific GType. The function
* atk_registry_set_factory_type() is normally called to store in the
* registry the factory type to be used to create an accessible of a
* particular GType.
*/
static void atk_object_factory_class_init (AtkObjectFactoryClass *klass);
static gpointer parent_class = NULL;
GType
atk_object_factory_get_type (void)
{
static GType type = 0;
if (!type)
{
GTypeInfo tinfo = {
sizeof (AtkObjectFactoryClass),
(GBaseInitFunc) NULL, /* base init */
(GBaseFinalizeFunc) NULL, /* base finalize */
(GClassInitFunc) atk_object_factory_class_init, /* class init */
(GClassFinalizeFunc) NULL, /* class finalize */
NULL, /* class data */
sizeof (AtkObjectFactory), /* instance size */
0, /* nb preallocs */
(GInstanceInitFunc) NULL, /* instance init */
NULL /* value table */
};
type = g_type_register_static (G_TYPE_OBJECT, "AtkObjectFactory", &tinfo, 0);
}
return type;
}
static void
atk_object_factory_class_init (AtkObjectFactoryClass *klass)
{
parent_class = g_type_class_peek_parent (klass);
}
/**
* atk_object_factory_create_accessible:
* @factory: The #AtkObjectFactory associated with @obj's
* object type
* @obj: a #GObject
*
* Provides an #AtkObject that implements an accessibility interface
* on behalf of @obj
*
* Returns: (transfer full): an #AtkObject that implements an accessibility
* interface on behalf of @obj
**/
AtkObject *
atk_object_factory_create_accessible (AtkObjectFactory *factory,
GObject *obj)
{
AtkObjectFactoryClass *klass;
AtkObject *accessible = NULL;
g_return_val_if_fail (ATK_IS_OBJECT_FACTORY (factory), NULL);
g_return_val_if_fail (G_IS_OBJECT (obj), NULL);
klass = ATK_OBJECT_FACTORY_GET_CLASS (factory);
if (klass->create_accessible)
{
accessible = klass->create_accessible (obj);
}
return accessible;
}
/**
* 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;
}
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