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/* GTK+ - accessibility implementations
* Copyright 2001, 2002, 2003 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include "gtkstatusbaraccessible.h"
G_DEFINE_TYPE (GtkStatusbarAccessible, gtk_statusbar_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE)
static void
text_changed (GtkStatusbar *statusbar,
guint context_id,
const gchar *text,
AtkObject *obj)
{
if (!obj->name)
g_object_notify (G_OBJECT (obj), "accessible-name");
g_signal_emit_by_name (obj, "visible-data-changed");
}
static void
gtk_statusbar_accessible_initialize (AtkObject *obj,
gpointer data)
{
GtkWidget *statusbar = data;
ATK_OBJECT_CLASS (gtk_statusbar_accessible_parent_class)->initialize (obj, data);
g_signal_connect_after (statusbar, "text-pushed",
G_CALLBACK (text_changed), obj);
g_signal_connect_after (statusbar, "text-popped",
G_CALLBACK (text_changed), obj);
obj->role = ATK_ROLE_STATUSBAR;
}
static GtkWidget *
find_label_child (GtkContainer *container)
{
GList *children, *tmp_list;
GtkWidget *child;
children = gtk_container_get_children (container);
child = NULL;
for (tmp_list = children; tmp_list != NULL; tmp_list = tmp_list->next)
{
if (GTK_IS_LABEL (tmp_list->data))
{
child = GTK_WIDGET (tmp_list->data);
break;
}
else if (GTK_IS_CONTAINER (tmp_list->data))
{
child = find_label_child (GTK_CONTAINER (tmp_list->data));
if (child)
break;
}
}
g_list_free (children);
return child;
}
static GtkWidget *
get_label_from_statusbar (GtkStatusbar *statusbar)
{
GtkWidget *box;
box = gtk_statusbar_get_message_area (statusbar);
return find_label_child (GTK_CONTAINER (box));
}
static const gchar *
gtk_statusbar_accessible_get_name (AtkObject *obj)
{
const gchar *name;
GtkWidget *widget;
GtkWidget *label;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
if (widget == NULL)
return NULL;
name = ATK_OBJECT_CLASS (gtk_statusbar_accessible_parent_class)->get_name (obj);
if (name != NULL)
return name;
label = get_label_from_statusbar (GTK_STATUSBAR (widget));
if (GTK_IS_LABEL (label))
return gtk_label_get_label (GTK_LABEL (label));
return NULL;
}
static gint
gtk_statusbar_accessible_get_n_children (AtkObject *obj)
{
return 0;
}
static AtkObject*
gtk_statusbar_accessible_ref_child (AtkObject *obj,
gint i)
{
return NULL;
}
static void
gtk_statusbar_accessible_class_init (GtkStatusbarAccessibleClass *klass)
{
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
GtkContainerAccessibleClass *container_class = (GtkContainerAccessibleClass*)klass;
class->get_name = gtk_statusbar_accessible_get_name;
class->get_n_children = gtk_statusbar_accessible_get_n_children;
class->ref_child = gtk_statusbar_accessible_ref_child;
class->initialize = gtk_statusbar_accessible_initialize;
/*
* As we report the statusbar as having no children
* we are not interested in add and remove signals
*/
container_class->add_gtk = NULL;
container_class->remove_gtk = NULL;
}
static void
gtk_statusbar_accessible_init (GtkStatusbarAccessible *bar)
{
}
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