1 /* ATK - Accessibility Toolkit
2 * Copyright 2001 Sun Microsystems Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18 #include "atkobjectfactory.h"
19 #include "atknoopobjectfactory.h"
22 * SECTION:atkobjectfactory
23 * @Short_description: The base object class for a factory used to
24 * create accessible objects for objects of a specific GType.
25 * @Title:AtkObjectFactory
27 * This class is the base object class for a factory used to create an
28 * accessible object for a specific GType. The function
29 * atk_registry_set_factory_type() is normally called to store in the
30 * registry the factory type to be used to create an accessible of a
34 static void atk_object_factory_class_init (AtkObjectFactoryClass *klass);
36 static gpointer parent_class = NULL;
39 atk_object_factory_get_type (void)
41 static GType type = 0;
46 sizeof (AtkObjectFactoryClass),
47 (GBaseInitFunc) NULL, /* base init */
48 (GBaseFinalizeFunc) NULL, /* base finalize */
49 (GClassInitFunc) atk_object_factory_class_init, /* class init */
50 (GClassFinalizeFunc) NULL, /* class finalize */
51 NULL, /* class data */
52 sizeof (AtkObjectFactory), /* instance size */
54 (GInstanceInitFunc) NULL, /* instance init */
55 NULL /* value table */
58 type = g_type_register_static (G_TYPE_OBJECT, "AtkObjectFactory", &tinfo, 0);
64 atk_object_factory_class_init (AtkObjectFactoryClass *klass)
66 parent_class = g_type_class_peek_parent (klass);
71 * atk_object_factory_create_accessible:
72 * @factory: The #AtkObjectFactory associated with @obj's
76 * Provides an #AtkObject that implements an accessibility interface
79 * Returns: (transfer full): an #AtkObject that implements an accessibility
80 * interface on behalf of @obj
83 atk_object_factory_create_accessible (AtkObjectFactory *factory,
86 AtkObjectFactoryClass *klass;
87 AtkObject *accessible = NULL;
89 g_return_val_if_fail (ATK_IS_OBJECT_FACTORY (factory), NULL);
90 g_return_val_if_fail (G_IS_OBJECT (obj), NULL);
92 klass = ATK_OBJECT_FACTORY_GET_CLASS (factory);
94 if (klass->create_accessible)
96 accessible = klass->create_accessible (obj);
102 * atk_object_factory_invalidate:
103 * @factory: an #AtkObjectFactory to invalidate
105 * Inform @factory that it is no longer being used to create
106 * accessibles. When called, @factory may need to inform
107 * #AtkObjects which it has created that they need to be re-instantiated.
108 * Note: primarily used for runtime replacement of #AtkObjectFactorys
109 * in object registries.
112 atk_object_factory_invalidate (AtkObjectFactory *factory)
114 AtkObjectFactoryClass *klass;
116 g_return_if_fail (ATK_OBJECT_FACTORY (factory));
118 klass = ATK_OBJECT_FACTORY_GET_CLASS (factory);
119 if (klass->invalidate)
120 (klass->invalidate) (factory);
124 * atk_object_factory_get_accessible_type:
125 * @factory: an #AtkObjectFactory
127 * Gets the GType of the accessible which is created by the factory.
128 * Returns: the type of the accessible which is created by the @factory.
129 * The value G_TYPE_INVALID is returned if no type if found.
132 atk_object_factory_get_accessible_type (AtkObjectFactory *factory)
134 AtkObjectFactoryClass *klass;
136 g_return_val_if_fail (ATK_OBJECT_FACTORY (factory), G_TYPE_INVALID);
138 klass = ATK_OBJECT_FACTORY_GET_CLASS (factory);
139 if (klass->get_accessible_type)
140 return (klass->get_accessible_type) ();
142 return G_TYPE_INVALID;