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/* GTK - The GIMP Toolkit
* Copyright 2001 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 <string.h>
#include "gtkwidget.h"
#include "gtkintl.h"
#include "gtkaccessible.h"
/**
* SECTION:gtkaccessible
* @Short_description: Accessibility support for widgets
* @Title: GtkAccessible
*/
/*
* GtkAccessiblePriv:
* @widget: The GtkWidget whose properties and features are exported via this
* accessible instance
*/
struct _GtkAccessiblePrivate
{
GtkWidget *widget;
};
static void gtk_accessible_real_connect_widget_destroyed (GtkAccessible *accessible);
G_DEFINE_TYPE (GtkAccessible, gtk_accessible, ATK_TYPE_OBJECT)
static void
gtk_accessible_init (GtkAccessible *accessible)
{
accessible->priv = G_TYPE_INSTANCE_GET_PRIVATE (accessible,
GTK_TYPE_ACCESSIBLE,
GtkAccessiblePrivate);
}
static void
gtk_accessible_class_init (GtkAccessibleClass *klass)
{
klass->connect_widget_destroyed = gtk_accessible_real_connect_widget_destroyed;
g_type_class_add_private (klass, sizeof (GtkAccessiblePrivate));
}
/**
* gtk_accessible_set_widget:
* @accessible: a #GtkAccessible
* @widget: a #GtkWidget
*
* Sets the #GtkWidget corresponding to the #GtkAccessible.
*
* Since: 2.22
**/
void
gtk_accessible_set_widget (GtkAccessible *accessible,
GtkWidget *widget)
{
g_return_if_fail (GTK_IS_ACCESSIBLE (accessible));
accessible->priv->widget = widget;
}
/**
* gtk_accessible_get_widget:
* @accessible: a #GtkAccessible
*
* Gets the #GtkWidget corresponding to the #GtkAccessible. The returned widget
* does not have a reference added, so you do not need to unref it.
*
* Returns: (transfer none): pointer to the #GtkWidget corresponding to
* the #GtkAccessible, or %NULL.
*
* Since: 2.22
**/
GtkWidget*
gtk_accessible_get_widget (GtkAccessible *accessible)
{
g_return_val_if_fail (GTK_IS_ACCESSIBLE (accessible), NULL);
return accessible->priv->widget;
}
/**
* gtk_accessible_connect_widget_destroyed
* @accessible: a #GtkAccessible
*
* This function specifies the callback function to be called when the widget
* corresponding to a GtkAccessible is destroyed.
*/
void
gtk_accessible_connect_widget_destroyed (GtkAccessible *accessible)
{
GtkAccessibleClass *class;
g_return_if_fail (GTK_IS_ACCESSIBLE (accessible));
class = GTK_ACCESSIBLE_GET_CLASS (accessible);
if (class->connect_widget_destroyed)
class->connect_widget_destroyed (accessible);
}
static void
gtk_accessible_real_connect_widget_destroyed (GtkAccessible *accessible)
{
GtkAccessiblePrivate *priv = accessible->priv;
if (priv->widget)
g_signal_connect (priv->widget, "destroy",
G_CALLBACK (gtk_widget_destroyed), &priv->widget);
}
/*
* _gtk_accessible_set_factory_type:
* @widget_type: a #GtkWidget subtype
* @factory_type: a #AtkObjectFactory subtype
*
* A wrapper around atk_registry_set_factory_type().
*
* Only installs the factory if accessibility is
* enabled.
*/
void
_gtk_accessible_set_factory_type (GType widget_type,
GType factory_type)
{
AtkObjectFactory *factory;
AtkRegistry *registry;
GType accessible_type;
/*
* Figure out whether accessibility is enabled by looking
* at the type of the accessible object which would be created
* for GtkWidget.
*/
registry = atk_get_default_registry ();
factory = atk_registry_get_factory (registry, GTK_TYPE_WIDGET);
accessible_type = atk_object_factory_get_accessible_type (factory);
if (g_type_is_a (accessible_type, GTK_TYPE_ACCESSIBLE))
atk_registry_set_factory_type (registry, widget_type, factory_type);
}
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