atk/atknoopobjectfactory.c

   1 /* ATK - Accessibility Toolkit
   2  * Copyright 2001 Sun Microsystems Inc.
   3  *
   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.
   8  *
   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.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "atkobject.h"
  21 #include "atknoopobject.h"
  22 #include "atknoopobjectfactory.h"
  23
  24 static void atk_no_op_object_factory_class_init (
  25                               AtkNoOpObjectFactoryClass        *klass);
  26
  27 static AtkObject* atk_no_op_object_factory_create_accessible (
  28                               GObject                          *obj);
  29 static GType      atk_no_op_object_factory_get_accessible_type (void);
  30
  31 static gpointer    parent_class = NULL;
  32
  33 GType
  34 atk_no_op_object_factory_get_type (void)
  35 {
  36   static GType type = 0;
  37
  38   if (!type)
  39   {
  40     static const GTypeInfo tinfo =
  41     {
  42       sizeof (AtkNoOpObjectFactoryClass),
  43       (GBaseInitFunc) NULL, /* base init */
  44       (GBaseFinalizeFunc) NULL, /* base finalize */
  45       (GClassInitFunc) atk_no_op_object_factory_class_init, /* class init */
  46       (GClassFinalizeFunc) NULL, /* class finalize */
  47       NULL, /* class data */
  48       sizeof (AtkNoOpObjectFactory), /* instance size */
  49       0, /* nb preallocs */
  50       (GInstanceInitFunc) NULL, /* instance init */
  51       NULL /* value table */
  52     };
  53     type = g_type_register_static (
  54                            ATK_TYPE_OBJECT_FACTORY,
  55                            "AtkNoOpObjectFactory" , &tinfo, 0);
  56   }
  57
  58   return type;
  59 }
  60
  61 static void
  62 atk_no_op_object_factory_class_init (AtkNoOpObjectFactoryClass *klass)
  63 {
  64   AtkObjectFactoryClass *class = ATK_OBJECT_FACTORY_CLASS (klass);
  65
  66   parent_class = g_type_class_peek_parent (klass);
  67
  68   class->create_accessible = atk_no_op_object_factory_create_accessible;
  69   class->get_accessible_type = atk_no_op_object_factory_get_accessible_type;
  70 }
  71
  72 /**
  73  * atk_no_op_object_factory_new:
  74  *
  75  * Creates an instance of an #AtkObjectFactory which generates primitive
  76  * (non-functioning) #AtkObjects.
  77  *
  78  * Returns: an instance of an #AtkObjectFactory
  79  **/
  80 AtkObjectFactory*
  81 atk_no_op_object_factory_new (void)
  82 {
  83   GObject *factory;
  84
  85   factory = g_object_new (ATK_TYPE_NO_OP_OBJECT_FACTORY, NULL);
  86
  87   g_return_val_if_fail (factory != NULL, NULL);
  88   return ATK_OBJECT_FACTORY (factory);
  89 }
  90
  91 static AtkObject*
  92 atk_no_op_object_factory_create_accessible (GObject   *obj)
  93 {
  94   AtkObject     *accessible;
  95
  96   accessible = atk_no_op_object_new (obj);
  97
  98   return accessible;
  99 }
 100
 101 static GType
 102 atk_no_op_object_factory_get_accessible_type (void)
 103 {
 104   return ATK_TYPE_NO_OP_OBJECT;
 105 }