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 = get_accessible_for_widget (_focus_widget, &transient);
else
atk_obj = NULL;
/*
* Do not report focus on redundant object
*/
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
if (atk_obj &&
(atk_object_get_role(atk_obj) != ATK_ROLE_REDUNDANT_OBJECT))
atk_focus_tracker_notify (atk_obj);
G_GNUC_END_IGNORE_DEPRECATIONS;
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 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;
GtkNotebook *notebook;
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;
notebook = GTK_NOTEBOOK (widget);
if (!notebook->focus_tab)
return TRUE;
gail_focus_notify_when_idle (widget);
return TRUE;
}
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_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 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;
}