forked from AuroraMiddleware/gtk
131 lines
3.8 KiB
C
131 lines
3.8 KiB
C
/* GAIL - The GNOME Accessibility Implementation Library
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* Copyright 2001 Sun Microsystems Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "gailradiobutton.h"
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static void gail_radio_button_class_init (GailRadioButtonClass *klass);
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static void gail_radio_button_init (GailRadioButton *radio_button);
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static void gail_radio_button_initialize (AtkObject *accessible,
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gpointer data);
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static AtkRelationSet* gail_radio_button_ref_relation_set (AtkObject *obj);
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G_DEFINE_TYPE (GailRadioButton, gail_radio_button, GAIL_TYPE_TOGGLE_BUTTON)
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static void
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gail_radio_button_class_init (GailRadioButtonClass *klass)
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{
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AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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class->initialize = gail_radio_button_initialize;
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class->ref_relation_set = gail_radio_button_ref_relation_set;
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}
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static void
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gail_radio_button_init (GailRadioButton *radio_button)
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{
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radio_button->old_group = NULL;
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}
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static void
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gail_radio_button_initialize (AtkObject *accessible,
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gpointer data)
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{
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ATK_OBJECT_CLASS (gail_radio_button_parent_class)->initialize (accessible, data);
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accessible->role = ATK_ROLE_RADIO_BUTTON;
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}
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AtkRelationSet*
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gail_radio_button_ref_relation_set (AtkObject *obj)
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{
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GtkWidget *widget;
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AtkRelationSet *relation_set;
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GSList *list;
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GailRadioButton *radio_button;
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g_return_val_if_fail (GAIL_IS_RADIO_BUTTON (obj), NULL);
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
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if (widget == NULL)
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{
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/*
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* State is defunct
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*/
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return NULL;
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}
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radio_button = GAIL_RADIO_BUTTON (obj);
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relation_set = ATK_OBJECT_CLASS (gail_radio_button_parent_class)->ref_relation_set (obj);
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/*
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* If the radio button'group has changed remove the relation
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*/
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list = gtk_radio_button_get_group (GTK_RADIO_BUTTON (widget));
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if (radio_button->old_group != list)
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{
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AtkRelation *relation;
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relation = atk_relation_set_get_relation_by_type (relation_set, ATK_RELATION_MEMBER_OF);
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atk_relation_set_remove (relation_set, relation);
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}
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if (!atk_relation_set_contains (relation_set, ATK_RELATION_MEMBER_OF))
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{
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/*
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* Get the members of the button group
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*/
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radio_button->old_group = list;
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if (list)
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{
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AtkObject **accessible_array;
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guint list_length;
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AtkRelation* relation;
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gint i = 0;
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list_length = g_slist_length (list);
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accessible_array = (AtkObject**) g_malloc (sizeof (AtkObject *) *
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list_length);
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while (list != NULL)
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{
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GtkWidget* list_item = list->data;
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accessible_array[i++] = gtk_widget_get_accessible (list_item);
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list = list->next;
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}
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relation = atk_relation_new (accessible_array, list_length,
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ATK_RELATION_MEMBER_OF);
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g_free (accessible_array);
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atk_relation_set_add (relation_set, relation);
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/*
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* Unref the relation so that it is not leaked.
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*/
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g_object_unref (relation);
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}
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}
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return relation_set;
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}
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