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/* GAIL - The GNOME Accessibility Implementation Library
* Copyright 2002 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 <gtk/gtk.h>
#include "gailradiomenuitem.h"
#include "gailradiosubmenuitem.h"
static void gail_radio_menu_item_class_init (GailRadioMenuItemClass *klass);
static void gail_radio_menu_item_init (GailRadioMenuItem *radio_menu_item);
static AtkRelationSet* gail_radio_menu_item_ref_relation_set (AtkObject *obj);
G_DEFINE_TYPE (GailRadioMenuItem, gail_radio_menu_item, GAIL_TYPE_CHECK_MENU_ITEM)
static void
gail_radio_menu_item_class_init (GailRadioMenuItemClass *klass)
{
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
class->ref_relation_set = gail_radio_menu_item_ref_relation_set;
}
AtkObject*
gail_radio_menu_item_new (GtkWidget *widget)
{
GObject *object;
AtkObject *accessible;
g_return_val_if_fail (GTK_IS_RADIO_MENU_ITEM (widget), NULL);
if (gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget)))
return gail_radio_sub_menu_item_new (widget);
object = g_object_new (GAIL_TYPE_RADIO_MENU_ITEM, NULL);
accessible = ATK_OBJECT (object);
atk_object_initialize (accessible, widget);
accessible->role = ATK_ROLE_RADIO_MENU_ITEM;
return accessible;
}
static void
gail_radio_menu_item_init (GailRadioMenuItem *radio_menu_item)
{
radio_menu_item->old_group = NULL;
}
AtkRelationSet*
gail_radio_menu_item_ref_relation_set (AtkObject *obj)
{
GtkWidget *widget;
AtkRelationSet *relation_set;
GSList *list;
GailRadioMenuItem *radio_menu_item;
g_return_val_if_fail (GAIL_IS_RADIO_MENU_ITEM (obj), NULL);
widget = GTK_ACCESSIBLE (obj)->widget;
if (widget == NULL)
{
/*
* State is defunct
*/
return NULL;
}
radio_menu_item = GAIL_RADIO_MENU_ITEM (obj);
relation_set = ATK_OBJECT_CLASS (gail_radio_menu_item_parent_class)->ref_relation_set (obj);
/*
* If the radio menu_item'group has changed remove the relation
*/
list = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (widget));
if (radio_menu_item->old_group != list)
{
AtkRelation *relation;
relation = atk_relation_set_get_relation_by_type (relation_set, ATK_RELATION_MEMBER_OF);
atk_relation_set_remove (relation_set, relation);
}
if (!atk_relation_set_contains (relation_set, ATK_RELATION_MEMBER_OF))
{
/*
* Get the members of the menu_item group
*/
radio_menu_item->old_group = list;
if (list)
{
AtkObject **accessible_array;
guint list_length;
AtkRelation* relation;
gint i = 0;
list_length = g_slist_length (list);
accessible_array = (AtkObject**) g_malloc (sizeof (AtkObject *) *
list_length);
while (list != NULL)
{
GtkWidget* list_item = list->data;
accessible_array[i++] = gtk_widget_get_accessible (list_item);
list = list->next;
}
relation = atk_relation_new (accessible_array, list_length,
ATK_RELATION_MEMBER_OF);
g_free (accessible_array);
atk_relation_set_add (relation_set, relation);
/*
* Unref the relation so that it is not leaked.
*/
g_object_unref (relation);
}
}
return relation_set;
}
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