path: root/a11y/ea-factory.h

/*
 *
 * This program 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) version 3.
 *
 * This program 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 the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *      Bolian Yin <bolian.yin@sun.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

/* Evolution Accessibility
*/

#ifndef _EA_FACTORY_H__
#define _EA_FACTORY_H__

#include <glib-object.h>
#include <atk/atkobject.h>

#define EA_FACTORY_PARTA_GOBJECT(type, type_as_function, opt_create_accessible) \
static AtkObject*                               \
type_as_function ## _factory_create_accessible (GObject *obj)           \
{                                                                               \
  AtkObject *accessible;                            \
  g_return_val_if_fail (G_IS_OBJECT (obj), NULL);               \
  accessible = opt_create_accessible (G_OBJECT (obj));              \
  return accessible;                                \
}

#define EA_FACTORY_PARTA(type, type_as_function, opt_create_accessible)     \
static AtkObject*                               \
type_as_function ## _factory_create_accessible (GObject *obj)           \
{                                                                               \
  GtkWidget *widget;                                \
  AtkObject *accessible;                            \
                                                                                \
  g_return_val_if_fail (GTK_IS_WIDGET (obj), NULL);             \
                                        \
  widget = GTK_WIDGET (obj);                            \
                                        \
  accessible = opt_create_accessible (widget);                  \
  return accessible;                                \
}

#define EA_FACTORY_PARTB(type, type_as_function, opt_create_accessible)     \
                                        \
static GType                                    \
type_as_function ## _factory_get_accessible_type (void)             \
{                                       \
  return type;                                  \
}                                       \
                                        \
                                        \
static void                                 \
type_as_function ## _factory_class_init (AtkObjectFactoryClass *klass)      \
{                                       \
  klass->create_accessible   = type_as_function ## _factory_create_accessible;  \
  klass->get_accessible_type = type_as_function ## _factory_get_accessible_type;\
}                                       \
                                        \
static GType                                    \
type_as_function ## _factory_get_type (void)                    \
{                                       \
  static GType t = 0;                               \
                                        \
  if (!t)                                   \
  {                                     \
    gchar *name;                                    \
    static const GTypeInfo tinfo =                      \
    {                                       \
      sizeof (AtkObjectFactoryClass),                       \
      NULL, NULL, (GClassInitFunc) type_as_function ## _factory_class_init, \
      NULL, NULL, sizeof (AtkObjectFactory), 0, NULL, NULL          \
    };                                      \
                                        \
    name = g_strconcat (g_type_name (type), "Factory", NULL);           \
    t = g_type_register_static (                        \
        ATK_TYPE_OBJECT_FACTORY, name, &tinfo, 0);              \
    g_free (name);                              \
  }                                     \
                                        \
  return t;                                 \
}

#define EA_FACTORY(type, type_as_function, opt_create_accessible)       \
        EA_FACTORY_PARTA (type, type_as_function, opt_create_accessible)        \
        EA_FACTORY_PARTB (type, type_as_function, opt_create_accessible)

#define EA_FACTORY_GOBJECT(type, type_as_function, opt_create_accessible)   \
        EA_FACTORY_PARTA_GOBJECT (type, type_as_function, opt_create_accessible)    \
        EA_FACTORY_PARTB (type, type_as_function, opt_create_accessible)

#define EA_SET_FACTORY(obj_type, type_as_function)              \
{                                                                               \
        if (atk_get_root ()) {                                                  \
                atk_registry_set_factory_type (atk_get_default_registry (),     \
                                      obj_type,                                 \
                                      type_as_function ## _factory_get_type ());\
        }                                   \
}

#endif /* _EA_FACTORY_H__ */