Convert GailRadio(Sub)MenuItem to GtkAccessible classes

The way submenus are handled here isn't really right, since they can come and go at runtime, but I've left it like this for now. A side-effect is that we can't use gtk_widget_class_set_accessible_type here, but have to override get_accessible.
2011-07-01 11:41:45 -04:00
parent 2d655446ba
commit 64b9599866
11 changed files with 337 additions and 393 deletions
--- a/gtk/a11y/gtkradiomenuitemaccessible.c
+++ b/gtk/a11y/gtkradiomenuitemaccessible.c
@ -0,0 +1,102 @@
+/* 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 "config.h"
+
+#include <gtk/gtk.h>
+#include "gtkradiomenuitemaccessible.h"
+#include "gtkradiosubmenuitemaccessible.h"
+
+
+G_DEFINE_TYPE (GtkRadioMenuItemAccessible, gtk_radio_menu_item_accessible, GAIL_TYPE_CHECK_MENU_ITEM)
+
+AtkRelationSet *
+gtk_radio_menu_item_accessible_ref_relation_set (AtkObject *obj)
+{
+  GtkWidget *widget;
+  AtkRelationSet *relation_set;
+  GSList *list;
+  GtkRadioMenuItemAccessible *radio_menu_item;
+
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
+  if (widget == NULL)
+    return NULL;
+
+  radio_menu_item = GTK_RADIO_MENU_ITEM_ACCESSIBLE (obj);
+
+  relation_set = ATK_OBJECT_CLASS (gtk_radio_menu_item_accessible_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 = g_new (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;
+}
+
+static void
+gtk_radio_menu_item_accessible_class_init (GtkRadioMenuItemAccessibleClass *klass)
+{
+  AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
+
+  class->ref_relation_set = gtk_radio_menu_item_accessible_ref_relation_set;
+}
+
+static void
+gtk_radio_menu_item_accessible_init (GtkRadioMenuItemAccessible *radio_menu_item)
+{
+}