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