forked from AuroraMiddleware/gtk
123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
/* GTK+ - accessibility implementations
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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, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "gtkradiobuttonaccessible.h"
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struct _GtkRadioButtonAccessiblePrivate
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{
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GSList *old_group;
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};
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G_DEFINE_TYPE (GtkRadioButtonAccessible, gtk_radio_button_accessible, GTK_TYPE_TOGGLE_BUTTON_ACCESSIBLE)
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static void
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gtk_radio_button_accessible_initialize (AtkObject *accessible,
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gpointer data)
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{
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ATK_OBJECT_CLASS (gtk_radio_button_accessible_parent_class)->initialize (accessible, data);
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accessible->role = ATK_ROLE_RADIO_BUTTON;
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}
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static AtkRelationSet *
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gtk_radio_button_accessible_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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GtkRadioButtonAccessible *radio_button;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
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if (widget == NULL)
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return NULL;
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radio_button = GTK_RADIO_BUTTON_ACCESSIBLE (obj);
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relation_set = ATK_OBJECT_CLASS (gtk_radio_button_accessible_parent_class)->ref_relation_set (obj);
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/* If the radio button'group has changed remove the relation */
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list = gtk_radio_button_get_group (GTK_RADIO_BUTTON (widget));
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if (radio_button->priv->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->priv->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 = g_new (AtkObject *, 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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static void
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gtk_radio_button_accessible_class_init (GtkRadioButtonAccessibleClass *klass)
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{
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AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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class->initialize = gtk_radio_button_accessible_initialize;
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class->ref_relation_set = gtk_radio_button_accessible_ref_relation_set;
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g_type_class_add_private (klass, sizeof (GtkRadioButtonAccessiblePrivate));
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}
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static void
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gtk_radio_button_accessible_init (GtkRadioButtonAccessible *radio_button)
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{
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radio_button->priv = G_TYPE_INSTANCE_GET_PRIVATE (radio_button,
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GTK_TYPE_RADIO_BUTTON_ACCESSIBLE,
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GtkRadioButtonAccessiblePrivate);
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}
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