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0e2f3271b9
gtk2/gtk/a11y/gail.c
Matthias Clasen 0e2f3271b9 Convert GailMenu to GtkMenuAccessible
2011-07-05 16:08:57 -04:00

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/* GAIL - The GNOME Accessibility Implementation Library
* 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 <stdio.h>
#include <stdlib.h>
#include <gtk/gtkx.h>
#include "gailbooleancell.h"
#include "gailcell.h"
#include "gailcontainer.h"
#include "gailcontainercell.h"
#include "gailimagecell.h"
#include "gailmenushell.h"
#include "gailrenderercell.h"
#include "gailtextcell.h"
#include "gailtoplevel.h"
#include "gailutil.h"
#include "gailwidget.h"
#include "gailfactory.h"
#define GNOME_ACCESSIBILITY_ENV "GNOME_ACCESSIBILITY"
static gboolean gail_focus_watcher (GSignalInvocationHint *ihint,
guint n_param_values,
const GValue *param_values,
gpointer data);
static gboolean gail_select_watcher (GSignalInvocationHint *ihint,
guint n_param_values,
const GValue *param_values,
gpointer data);
static gboolean gail_deselect_watcher (GSignalInvocationHint *ihint,
guint n_param_values,
const GValue *param_values,
gpointer data);
static gboolean gail_switch_page_watcher(GSignalInvocationHint *ihint,
guint n_param_values,
const GValue *param_values,
gpointer data);
static void gail_finish_select (GtkWidget *widget);
static void gail_map_cb (GtkWidget *widget);
static void gail_map_submenu_cb (GtkWidget *widget);
static gint gail_focus_idle_handler (gpointer data);
static void gail_focus_notify (GtkWidget *widget);
static void gail_focus_notify_when_idle (GtkWidget *widget);
static void gail_focus_tracker_init (void);
static void gail_focus_object_destroyed (gpointer data);
static void gail_focus_tracker (AtkObject *object);
static void gail_set_focus_widget (GtkWidget *focus_widget,
GtkWidget *widget);
static void gail_set_focus_object (AtkObject *focus_obj,
AtkObject *obj);
GtkWidget* focus_widget = NULL;
static GtkWidget* next_focus_widget = NULL;
static gboolean was_deselect = FALSE;
static GtkWidget* subsequent_focus_widget = NULL;
static GtkWidget* focus_before_menu = NULL;
static guint focus_notify_handler = 0;
static guint focus_tracker_id = 0;
static GQuark quark_focus_object = 0;
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_WIDGET, GailWidget, gail_widget, GTK_TYPE_WIDGET)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_CONTAINER, GailContainer, gail_container, GTK_TYPE_CONTAINER)
GAIL_IMPLEMENT_FACTORY (GAIL_TYPE_MENU_SHELL, GailMenuShell, gail_menu_shell, GTK_TYPE_MENU_SHELL)
GAIL_IMPLEMENT_FACTORY_WITH_FUNC_DUMMY (GAIL_TYPE_RENDERER_CELL, GailRendererCell, gail_renderer_cell, GTK_TYPE_CELL_RENDERER, gail_renderer_cell_new)
GAIL_IMPLEMENT_FACTORY_WITH_FUNC_DUMMY (GAIL_TYPE_BOOLEAN_CELL, GailBooleanCell, gail_boolean_cell, GTK_TYPE_CELL_RENDERER_TOGGLE, gail_boolean_cell_new)
GAIL_IMPLEMENT_FACTORY_WITH_FUNC_DUMMY (GAIL_TYPE_IMAGE_CELL, GailImageCell, gail_image_cell, GTK_TYPE_CELL_RENDERER_PIXBUF, gail_image_cell_new)
GAIL_IMPLEMENT_FACTORY_WITH_FUNC_DUMMY (GAIL_TYPE_TEXT_CELL, GailTextCell, gail_text_cell, GTK_TYPE_CELL_RENDERER_TEXT, gail_text_cell_new)
static AtkObject*
gail_get_accessible_for_widget (GtkWidget *widget,
gboolean *transient)
{
AtkObject *obj = NULL;
*transient = FALSE;
if (!widget)
return NULL;
if (GTK_IS_ENTRY (widget))
;
else if (GTK_IS_NOTEBOOK (widget))
{
GtkNotebook *notebook;
gint page_num = -1;
notebook = GTK_NOTEBOOK (widget);
page_num = gtk_notebook_get_current_page (notebook);
if (page_num != -1)
{
obj = gtk_widget_get_accessible (widget);
obj = atk_object_ref_accessible_child (obj, page_num);
g_object_unref (obj);
}
}
else if (GTK_IS_TOGGLE_BUTTON (widget))
{
GtkWidget *other_widget = gtk_widget_get_parent (widget);
if (GTK_IS_COMBO_BOX (other_widget))
{
gail_set_focus_widget (other_widget, widget);
widget = other_widget;
}
}
if (obj == NULL)
{
AtkObject *focus_object;
obj = gtk_widget_get_accessible (widget);
focus_object = g_object_get_qdata (G_OBJECT (obj), quark_focus_object);
/*
* We check whether the object for this focus_object has been deleted.
* This can happen when navigating to an empty directory in nautilus.
* See bug #141907.
*/
if (ATK_IS_GOBJECT_ACCESSIBLE (focus_object))
{
if (!atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (focus_object)))
focus_object = NULL;
}
if (focus_object)
obj = focus_object;
}
return obj;
}
static gboolean
gail_focus_watcher (GSignalInvocationHint *ihint,
guint n_param_values,
const GValue *param_values,
gpointer data)
{
GObject *object;
GtkWidget *widget;
GdkEvent *event;
object = g_value_get_object (param_values + 0);
g_return_val_if_fail (GTK_IS_WIDGET(object), FALSE);
event = g_value_get_boxed (param_values + 1);
widget = GTK_WIDGET (object);
if (event->type == GDK_FOCUS_CHANGE)
{
if (event->focus_change.in)
{
if (GTK_IS_WINDOW (widget))
{
GtkWidget *focus_widget;
GtkWindow *window;
GtkWindowType type;
window = GTK_WINDOW (widget);
focus_widget = gtk_window_get_focus (window);
g_object_get (window, "type", &type, NULL);
if (focus_widget)
{
/*
* If we already have a potential focus widget set this
* windows's focus widget to focus_before_menu so that
* it will be reported when menu item is unset.
*/
if (next_focus_widget)
{
if (GTK_IS_MENU_ITEM (next_focus_widget) &&
!focus_before_menu)
{
void *vp_focus_before_menu = &focus_before_menu;
focus_before_menu = focus_widget;
g_object_add_weak_pointer (G_OBJECT (focus_before_menu), vp_focus_before_menu);
}
return TRUE;
}
widget = focus_widget;
}
else if (type == GTK_WINDOW_POPUP)
{
if (GTK_IS_BIN (widget))
{
GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
if (GTK_IS_WIDGET (child) && gtk_widget_has_grab (child))
{
if (GTK_IS_MENU_SHELL (child))
{
if (gtk_menu_shell_get_selected_item (GTK_MENU_SHELL (child)))
{
/*
* We have a menu which has a menu item selected
* so we do not report focus on the menu.
*/
return TRUE;
}
}
widget = child;
}
}
else /* popup window has no children; this edge case occurs in some custom code (OOo for instance) */
{
return TRUE;
}
}
else /* Widget is a non-popup toplevel with no focus children;
don't emit for this case either, as it's useless */
{
return TRUE;
}
}
}
else
{
if (next_focus_widget)
{
GtkWidget *toplevel;
toplevel = gtk_widget_get_toplevel (next_focus_widget);
if (toplevel == widget)
next_focus_widget = NULL;
}
/* focus out */
widget = NULL;
}
}
else
{
if (event->type == GDK_MOTION_NOTIFY && gtk_widget_has_focus (widget))
{
if (widget == focus_widget)
{
return TRUE;
}
}
else
{
return TRUE;
}
}
#ifdef GDK_WINDOWING_X11
/*
* If the focus widget is a GtkSocket without a plug
* then ignore the focus notification as the embedded
* plug will report a focus notification.
*/
if (GTK_IS_SOCKET (widget) &&
gtk_socket_get_plug_window (GTK_SOCKET (widget)) != NULL)
return TRUE;
#endif
/*
* The widget may not yet be visible on the screen so we wait until it is.
*/
gail_focus_notify_when_idle (widget);
return TRUE;
}
static gboolean
gail_select_watcher (GSignalInvocationHint *ihint,
guint n_param_values,
const GValue *param_values,
gpointer data)
{
GObject *object;
GtkWidget *widget;
object = g_value_get_object (param_values + 0);
g_return_val_if_fail (GTK_IS_WIDGET(object), FALSE);
widget = GTK_WIDGET (object);
if (!gtk_widget_get_mapped (widget))
{
g_signal_connect (widget, "map",
G_CALLBACK (gail_map_cb),
NULL);
}
else
gail_finish_select (widget);
return TRUE;
}
static void
gail_finish_select (GtkWidget *widget)
{
if (GTK_IS_MENU_ITEM (widget))
{
GtkMenuItem* menu_item;
GtkWidget *submenu;
menu_item = GTK_MENU_ITEM (widget);
submenu = gtk_menu_item_get_submenu (menu_item);
if (submenu &&
!gtk_widget_get_mapped (submenu))
{
/*
* If the submenu is not visble, wait until it is before
* reporting focus on the menu item.
*/
gulong handler_id;
handler_id = g_signal_handler_find (submenu,
G_SIGNAL_MATCH_FUNC,
g_signal_lookup ("map",
GTK_TYPE_WINDOW),
0,
NULL,
(gpointer) gail_map_submenu_cb,
NULL);
if (!handler_id)
g_signal_connect (submenu, "map",
G_CALLBACK (gail_map_submenu_cb),
NULL);
return;
}
/*
* If we are waiting to report focus on a menubar or a menu item
* because of a previous deselect, cancel it.
*/
if (was_deselect &&
focus_notify_handler &&
next_focus_widget &&
(GTK_IS_MENU_BAR (next_focus_widget) ||
GTK_IS_MENU_ITEM (next_focus_widget)))
{
void *vp_next_focus_widget = &next_focus_widget;
g_source_remove (focus_notify_handler);
g_object_remove_weak_pointer (G_OBJECT (next_focus_widget), vp_next_focus_widget);
next_focus_widget = NULL;
focus_notify_handler = 0;
was_deselect = FALSE;
}
}
/*
* If previously focused widget is not a GtkMenuItem or a GtkMenu,
* keep track of it so we can return to it after menubar is deactivated
*/
if (focus_widget &&
!GTK_IS_MENU_ITEM (focus_widget) &&
!GTK_IS_MENU (focus_widget))
{
void *vp_focus_before_menu = &focus_before_menu;
focus_before_menu = focus_widget;
g_object_add_weak_pointer (G_OBJECT (focus_before_menu), vp_focus_before_menu);
}
gail_focus_notify_when_idle (widget);
return;
}
static void
gail_map_cb (GtkWidget *widget)
{
gail_finish_select (widget);
}
static void
gail_map_submenu_cb (GtkWidget *widget)
{
if (GTK_IS_MENU (widget))
{
GtkWidget *parent_menu_item;
parent_menu_item = gtk_menu_get_attach_widget (GTK_MENU (widget));
if (parent_menu_item)
gail_finish_select (parent_menu_item);
}
}
static gboolean
gail_deselect_watcher (GSignalInvocationHint *ihint,
guint n_param_values,
const GValue *param_values,
gpointer data)
{
GObject *object;
GtkWidget *widget;
GtkWidget *menu_shell;
object = g_value_get_object (param_values + 0);
g_return_val_if_fail (GTK_IS_WIDGET(object), FALSE);
widget = GTK_WIDGET (object);
if (!GTK_IS_MENU_ITEM (widget))
return TRUE;
if (subsequent_focus_widget == widget)
subsequent_focus_widget = NULL;
menu_shell = gtk_widget_get_parent (widget);
if (GTK_IS_MENU_SHELL (menu_shell))
{
GtkWidget *parent_menu_shell;
parent_menu_shell = gtk_menu_shell_get_parent_shell (GTK_MENU_SHELL (menu_shell));
if (parent_menu_shell)
{
GtkWidget *active_menu_item;
active_menu_item = gtk_menu_shell_get_selected_item (GTK_MENU_SHELL (parent_menu_shell));
if (active_menu_item)
{
gail_focus_notify_when_idle (active_menu_item);
}
}
else
{
if (!GTK_IS_MENU_BAR (menu_shell))
{
gail_focus_notify_when_idle (menu_shell);
}
}
}
was_deselect = TRUE;
return TRUE;
}
static gboolean
gail_switch_page_watcher (GSignalInvocationHint *ihint,
guint n_param_values,
const GValue *param_values,
gpointer data)
{
GObject *object;
GtkWidget *widget;
object = g_value_get_object (param_values + 0);
g_return_val_if_fail (GTK_IS_WIDGET(object), FALSE);
widget = GTK_WIDGET (object);
if (!GTK_IS_NOTEBOOK (widget))
return TRUE;
if (gtk_notebook_get_current_page (GTK_NOTEBOOK (widget)) == -1)
return TRUE;
gail_focus_notify_when_idle (widget);
return TRUE;
}
static gboolean
gail_focus_idle_handler (gpointer data)
{
focus_notify_handler = 0;
/*
* The widget which was to receive focus may have been removed
*/
if (!next_focus_widget)
{
if (next_focus_widget != data)
return FALSE;
}
else
{
void *vp_next_focus_widget = &next_focus_widget;
g_object_remove_weak_pointer (G_OBJECT (next_focus_widget), vp_next_focus_widget);
next_focus_widget = NULL;
}
gail_focus_notify (data);
return FALSE;
}
static void
gail_focus_notify (GtkWidget *widget)
{
AtkObject *atk_obj;
gboolean transient;
if (widget != focus_widget)
{
if (focus_widget)
{
void *vp_focus_widget = &focus_widget;
g_object_remove_weak_pointer (G_OBJECT (focus_widget), vp_focus_widget);
}
focus_widget = widget;
if (focus_widget)
{
void *vp_focus_widget = &focus_widget;
g_object_add_weak_pointer (G_OBJECT (focus_widget), vp_focus_widget);
/*
* The UI may not have been updated yet; e.g. in gtkhtml2
* html_view_layout() is called in a idle handler
*/
if (focus_widget == focus_before_menu)
{
void *vp_focus_before_menu = &focus_before_menu;
g_object_remove_weak_pointer (G_OBJECT (focus_before_menu), vp_focus_before_menu);
focus_before_menu = NULL;
}
}
gail_focus_notify_when_idle (focus_widget);
}
else
{
if (focus_widget)
atk_obj = gail_get_accessible_for_widget (focus_widget, &transient);
else
atk_obj = NULL;
/*
* Do not report focus on redundant object
*/
if (atk_obj &&
(atk_object_get_role(atk_obj) != ATK_ROLE_REDUNDANT_OBJECT))
atk_focus_tracker_notify (atk_obj);
if (atk_obj && transient)
g_object_unref (atk_obj);
if (subsequent_focus_widget)
{
GtkWidget *tmp_widget = subsequent_focus_widget;
subsequent_focus_widget = NULL;
gail_focus_notify_when_idle (tmp_widget);
}
}
}
static void
gail_focus_notify_when_idle (GtkWidget *widget)
{
if (focus_notify_handler)
{
if (widget)
{
/*
* Ignore focus request when menu item is going to be focused.
* See bug #124232.
*/
if (GTK_IS_MENU_ITEM (next_focus_widget) && !GTK_IS_MENU_ITEM (widget))
return;
if (next_focus_widget)
{
if (GTK_IS_MENU_ITEM (next_focus_widget) && GTK_IS_MENU_ITEM (widget))
{
if (gtk_menu_item_get_submenu (GTK_MENU_ITEM (next_focus_widget)) == gtk_widget_get_parent (widget))
{
if (subsequent_focus_widget)
g_assert_not_reached ();
subsequent_focus_widget = widget;
return;
}
}
}
g_source_remove (focus_notify_handler);
if (next_focus_widget)
{
void *vp_next_focus_widget = &next_focus_widget;
g_object_remove_weak_pointer (G_OBJECT (next_focus_widget), vp_next_focus_widget);
next_focus_widget = NULL;
}
}
else
/*
* Ignore if focus is being set to NULL and we are waiting to set focus
*/
return;
}
if (widget)
{
void *vp_next_focus_widget = &next_focus_widget;
next_focus_widget = widget;
g_object_add_weak_pointer (G_OBJECT (next_focus_widget), vp_next_focus_widget);
}
else
{
/*
* We are about to report focus as NULL so remove the weak pointer
* for the widget we were waiting to report focus on.
*/
if (next_focus_widget)
{
void *vp_next_focus_widget = &next_focus_widget;
g_object_remove_weak_pointer (G_OBJECT (next_focus_widget), vp_next_focus_widget);
next_focus_widget = NULL;
}
}
focus_notify_handler = gdk_threads_add_idle (gail_focus_idle_handler, widget);
}
static gboolean
gail_deactivate_watcher (GSignalInvocationHint *ihint,
guint n_param_values,
const GValue *param_values,
gpointer data)
{
GObject *object;
GtkWidget *widget;
GtkMenuShell *shell;
GtkWidget *focus = NULL;
object = g_value_get_object (param_values + 0);
g_return_val_if_fail (GTK_IS_WIDGET(object), FALSE);
widget = GTK_WIDGET (object);
g_return_val_if_fail (GTK_IS_MENU_SHELL(widget), TRUE);
shell = GTK_MENU_SHELL(widget);
if (! gtk_menu_shell_get_parent_shell (shell))
focus = focus_before_menu;
/*
* If we are waiting to report focus on a menubar or a menu item
* because of a previous deselect, cancel it.
*/
if (was_deselect &&
focus_notify_handler &&
next_focus_widget &&
(GTK_IS_MENU_BAR (next_focus_widget) ||
GTK_IS_MENU_ITEM (next_focus_widget)))
{
void *vp_next_focus_widget = &next_focus_widget;
g_source_remove (focus_notify_handler);
g_object_remove_weak_pointer (G_OBJECT (next_focus_widget), vp_next_focus_widget);
next_focus_widget = NULL;
focus_notify_handler = 0;
was_deselect = FALSE;
}
gail_focus_notify_when_idle (focus);
return TRUE;
}
static void
gail_focus_tracker_init (void)
{
static gboolean emission_hooks_added = FALSE;
if (!emission_hooks_added)
{
/*
* We cannot be sure that the classes exist so we make sure that they do.
*/
g_type_class_ref (GTK_TYPE_WIDGET);
g_type_class_ref (GTK_TYPE_MENU_ITEM);
g_type_class_ref (GTK_TYPE_MENU_SHELL);
g_type_class_ref (GTK_TYPE_NOTEBOOK);
/*
* We listen for event_after signal and then check that the
* event was a focus in event so we get called after the event.
*/
g_signal_add_emission_hook (
g_signal_lookup ("event-after", GTK_TYPE_WIDGET), 0,
gail_focus_watcher, NULL, (GDestroyNotify) NULL);
/*
* A "select" signal is emitted when arrow key is used to
* move to a list item in the popup window of a GtkCombo or
* a menu item in a menu.
*/
g_signal_add_emission_hook (
g_signal_lookup ("select", GTK_TYPE_MENU_ITEM), 0,
gail_select_watcher, NULL, (GDestroyNotify) NULL);
/*
* A "deselect" signal is emitted when arrow key is used to
* move from a menu item in a menu to the parent menu.
*/
g_signal_add_emission_hook (
g_signal_lookup ("deselect", GTK_TYPE_MENU_ITEM), 0,
gail_deselect_watcher, NULL, (GDestroyNotify) NULL);
/*
* We listen for deactivate signals on menushells to determine
* when the "focus" has left the menus.
*/
g_signal_add_emission_hook (
g_signal_lookup ("deactivate", GTK_TYPE_MENU_SHELL), 0,
gail_deactivate_watcher, NULL, (GDestroyNotify) NULL);
/*
* We listen for "switch-page" signal on a GtkNotebook to notify
* when page has changed because of clicking on a notebook tab.
*/
g_signal_add_emission_hook (
g_signal_lookup ("switch-page", GTK_TYPE_NOTEBOOK), 0,
gail_switch_page_watcher, NULL, (GDestroyNotify) NULL);
emission_hooks_added = TRUE;
}
}
static void
gail_focus_object_destroyed (gpointer data)
{
GObject *obj;
obj = G_OBJECT (data);
g_object_set_qdata (obj, quark_focus_object, NULL);
g_object_unref (obj);
}
static void
gail_focus_tracker (AtkObject *focus_object)
{
/*
* Do not report focus on redundant object
*/
if (focus_object &&
(atk_object_get_role(focus_object) != ATK_ROLE_REDUNDANT_OBJECT))
{
AtkObject *old_focus_object;
if (!GTK_IS_ACCESSIBLE (focus_object))
{
AtkObject *parent;
parent = focus_object;
while (1)
{
parent = atk_object_get_parent (parent);
if (parent == NULL)
break;
if (GTK_IS_ACCESSIBLE (parent))
break;
}
if (parent)
{
gail_set_focus_object (focus_object, parent);
}
}
else
{
old_focus_object = g_object_get_qdata (G_OBJECT (focus_object), quark_focus_object);
if (old_focus_object)
{
g_object_weak_unref (G_OBJECT (old_focus_object),
(GWeakNotify) gail_focus_object_destroyed,
focus_object);
g_object_set_qdata (G_OBJECT (focus_object), quark_focus_object, NULL);
g_object_unref (G_OBJECT (focus_object));
}
}
}
}
static void
gail_set_focus_widget (GtkWidget *focus_widget,
GtkWidget *widget)
{
AtkObject *focus_obj;
AtkObject *obj;
focus_obj = gtk_widget_get_accessible (focus_widget);
obj = gtk_widget_get_accessible (widget);
gail_set_focus_object (focus_obj, obj);
}
static void
gail_set_focus_object (AtkObject *focus_obj,
AtkObject *obj)
{
AtkObject *old_focus_obj;
old_focus_obj = g_object_get_qdata (G_OBJECT (obj), quark_focus_object);
if (old_focus_obj != obj)
{
if (old_focus_obj)
g_object_weak_unref (G_OBJECT (old_focus_obj),
(GWeakNotify) gail_focus_object_destroyed,
obj);
else
/*
* We call g_object_ref as if obj is destroyed
* while the weak reference exists then destroying the
* focus_obj would cause gail_focus_object_destroyed to be
* called when obj is not a valid GObject.
*/
g_object_ref (obj);
g_object_weak_ref (G_OBJECT (focus_obj),
(GWeakNotify) gail_focus_object_destroyed,
obj);
g_object_set_qdata (G_OBJECT (obj), quark_focus_object, focus_obj);
}
}
static int gail_initialized = FALSE;
void
gail_accessibility_module_init (void)
{
const char *env_a_t_support;
gboolean a_t_support = FALSE;
if (gail_initialized)
{
return;
}
gail_initialized = TRUE;
quark_focus_object = g_quark_from_static_string ("gail-focus-object");
env_a_t_support = g_getenv (GNOME_ACCESSIBILITY_ENV);
if (env_a_t_support)
a_t_support = atoi (env_a_t_support);
if (a_t_support)
fprintf (stderr, "GTK Accessibility Module initialized\n");
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_WIDGET, gail_widget);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_CONTAINER, gail_container);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_MENU_BAR, gail_menu_shell);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_CELL_RENDERER_TEXT, gail_text_cell);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_CELL_RENDERER_TOGGLE, gail_boolean_cell);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_CELL_RENDERER_PIXBUF, gail_image_cell);
GAIL_WIDGET_SET_FACTORY (GTK_TYPE_CELL_RENDERER, gail_renderer_cell);
atk_focus_tracker_init (gail_focus_tracker_init);
focus_tracker_id = atk_add_focus_tracker (gail_focus_tracker);
/* Initialize the GailUtility class */
g_type_class_unref (g_type_class_ref (GAIL_TYPE_UTIL));
g_type_class_unref (g_type_class_ref (GAIL_TYPE_MISC));
}
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