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