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Add a new binding signal, "move_scroll", and use it to hook up

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Sat Dec 14 14:19:16 2002  Owen Taylor  <otaylor@redhat.com>

        * gtk/gtkmenu.c: Add a new binding signal, "move_scroll",
        and use it to hook up Home/End/Page_Up/Page_Down keybindings.
        (#80484, Narayana Pattipati, Marius Andreiana)

        * gtk/gtkmenu.c (gtk_menu_scroll_item_visible): Fix some
        bugs in the computation of when an item is visible. (#99545)

        * gtk/gtkbindings.[ch] (_gtk_binding_signal_new) gtk/gtkmenushell.c:
        Move here, export privately.

        * gtk/gtkmenushell.c (_gtk_menu_shell_select_last): Export
        privately.

        * gtk/gtkmenushell.c (gtk_menu_shell_select_item): Don't
        select the item if it is already selected.
This commit is contained in:
Owen Taylor 2002-12-14 22:43:52 +00:00 committed by Owen Taylor
parent c7c9ec32d5
commit 08a08cf1b5
11 changed files with 416 additions and 78 deletions
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18
ChangeLog
View File

@ -1,3 +1,21 @@
Sat Dec 14 14:19:16 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenu.c: Add a new binding signal, "move_scroll",
and use it to hook up Home/End/Page_Up/Page_Down keybindings.
(#80484, Narayana Pattipati, Marius Andreiana)
* gtk/gtkmenu.c (gtk_menu_scroll_item_visible): Fix some
bugs in the computation of when an item is visible. (#99545)
* gtk/gtkbindings.[ch] (_gtk_binding_signal_new) gtk/gtkmenushell.c:
Move here, export privately.
* gtk/gtkmenushell.c (_gtk_menu_shell_select_last): Export
privately.
* gtk/gtkmenushell.c (gtk_menu_shell_select_item): Don't
select the item if it is already selected.
Sat Dec 14 01:51:05 2002 Chema Celorio <chema@celorio.com>
* gtk/gtkdialog.c (gtk_dialog_add_buttons_valist): minor coding

18
ChangeLog.pre-2-10
View File

@ -1,3 +1,21 @@
Sat Dec 14 14:19:16 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenu.c: Add a new binding signal, "move_scroll",
and use it to hook up Home/End/Page_Up/Page_Down keybindings.
(#80484, Narayana Pattipati, Marius Andreiana)
* gtk/gtkmenu.c (gtk_menu_scroll_item_visible): Fix some
bugs in the computation of when an item is visible. (#99545)
* gtk/gtkbindings.[ch] (_gtk_binding_signal_new) gtk/gtkmenushell.c:
Move here, export privately.
* gtk/gtkmenushell.c (_gtk_menu_shell_select_last): Export
privately.
* gtk/gtkmenushell.c (gtk_menu_shell_select_item): Don't
select the item if it is already selected.
Sat Dec 14 01:51:05 2002 Chema Celorio <chema@celorio.com>
* gtk/gtkdialog.c (gtk_dialog_add_buttons_valist): minor coding

18
ChangeLog.pre-2-2
View File

@ -1,3 +1,21 @@
Sat Dec 14 14:19:16 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenu.c: Add a new binding signal, "move_scroll",
and use it to hook up Home/End/Page_Up/Page_Down keybindings.
(#80484, Narayana Pattipati, Marius Andreiana)
* gtk/gtkmenu.c (gtk_menu_scroll_item_visible): Fix some
bugs in the computation of when an item is visible. (#99545)
* gtk/gtkbindings.[ch] (_gtk_binding_signal_new) gtk/gtkmenushell.c:
Move here, export privately.
* gtk/gtkmenushell.c (_gtk_menu_shell_select_last): Export
privately.
* gtk/gtkmenushell.c (gtk_menu_shell_select_item): Don't
select the item if it is already selected.
Sat Dec 14 01:51:05 2002 Chema Celorio <chema@celorio.com>
* gtk/gtkdialog.c (gtk_dialog_add_buttons_valist): minor coding

18
ChangeLog.pre-2-4
View File

@ -1,3 +1,21 @@
Sat Dec 14 14:19:16 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenu.c: Add a new binding signal, "move_scroll",
and use it to hook up Home/End/Page_Up/Page_Down keybindings.
(#80484, Narayana Pattipati, Marius Andreiana)
* gtk/gtkmenu.c (gtk_menu_scroll_item_visible): Fix some
bugs in the computation of when an item is visible. (#99545)
* gtk/gtkbindings.[ch] (_gtk_binding_signal_new) gtk/gtkmenushell.c:
Move here, export privately.
* gtk/gtkmenushell.c (_gtk_menu_shell_select_last): Export
privately.
* gtk/gtkmenushell.c (gtk_menu_shell_select_item): Don't
select the item if it is already selected.
Sat Dec 14 01:51:05 2002 Chema Celorio <chema@celorio.com>
* gtk/gtkdialog.c (gtk_dialog_add_buttons_valist): minor coding

18
ChangeLog.pre-2-6
View File

@ -1,3 +1,21 @@
Sat Dec 14 14:19:16 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenu.c: Add a new binding signal, "move_scroll",
and use it to hook up Home/End/Page_Up/Page_Down keybindings.
(#80484, Narayana Pattipati, Marius Andreiana)
* gtk/gtkmenu.c (gtk_menu_scroll_item_visible): Fix some
bugs in the computation of when an item is visible. (#99545)
* gtk/gtkbindings.[ch] (_gtk_binding_signal_new) gtk/gtkmenushell.c:
Move here, export privately.
* gtk/gtkmenushell.c (_gtk_menu_shell_select_last): Export
privately.
* gtk/gtkmenushell.c (gtk_menu_shell_select_item): Don't
select the item if it is already selected.
Sat Dec 14 01:51:05 2002 Chema Celorio <chema@celorio.com>
* gtk/gtkdialog.c (gtk_dialog_add_buttons_valist): minor coding

18
ChangeLog.pre-2-8
View File

@ -1,3 +1,21 @@
Sat Dec 14 14:19:16 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenu.c: Add a new binding signal, "move_scroll",
and use it to hook up Home/End/Page_Up/Page_Down keybindings.
(#80484, Narayana Pattipati, Marius Andreiana)
* gtk/gtkmenu.c (gtk_menu_scroll_item_visible): Fix some
bugs in the computation of when an item is visible. (#99545)
* gtk/gtkbindings.[ch] (_gtk_binding_signal_new) gtk/gtkmenushell.c:
Move here, export privately.
* gtk/gtkmenushell.c (_gtk_menu_shell_select_last): Export
privately.
* gtk/gtkmenushell.c (gtk_menu_shell_select_item): Don't
select the item if it is already selected.
Sat Dec 14 01:51:05 2002 Chema Celorio <chema@celorio.com>
* gtk/gtkdialog.c (gtk_dialog_add_buttons_valist): minor coding

29
gtk/gtkbindings.c
View File

@ -1472,3 +1472,32 @@ _gtk_binding_reset_parsed (void)
slist = next;
}
}
guint
_gtk_binding_signal_new (const gchar *signal_name,
GType itype,
GSignalFlags signal_flags,
GCallback handler,
GSignalAccumulator accumulator,
gpointer accu_data,
GSignalCMarshaller c_marshaller,
GType return_type,
guint n_params,
...)
{
va_list args;
guint signal_id;
g_return_val_if_fail (signal_name != NULL, 0);
va_start (args, n_params);
signal_id = g_signal_new_valist (signal_name, itype, signal_flags,
g_cclosure_new (handler, NULL, NULL),
accumulator, accu_data, c_marshaller,
return_type, n_params, args);
va_end (args);
return signal_id;
}

13
gtk/gtkbindings.h
View File

@ -140,6 +140,19 @@ gboolean _gtk_bindings_activate_event (GtkObject *object,
GdkEventKey *event);
void _gtk_binding_reset_parsed (void);
/* Creates a signal with a fixed callback instead of a class offset;
* useful for key binding signals
*/
guint _gtk_binding_signal_new (const gchar *signal_name,
GType itype,
GSignalFlags signal_flags,
GCallback handler,
GSignalAccumulator accumulator,
gpointer accu_data,
GSignalCMarshaller c_marshaller,
GType return_type,
guint n_params,
...);
#ifdef __cplusplus
}
#endif /* __cplusplus */

285
gtk/gtkmenu.c
View File

@ -32,8 +32,10 @@
#include "gtkbindings.h"
#include "gtklabel.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkmenu.h"
#include "gtkmenuitem.h"
#include "gtktearoffmenuitem.h"
#include "gtkwindow.h"
#include "gtkhbox.h"
#include "gtkvscrollbar.h"
@ -74,6 +76,11 @@ struct _GtkMenuPrivate
gint y;
};
enum {
MOVE_SCROLL,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_TEAROFF_TITLE
@ -138,8 +145,9 @@ static void gtk_menu_style_set (GtkWidget *widget,
GtkStyle *previous_style);
static gboolean gtk_menu_focus (GtkWidget *widget,
GtkDirectionType direction);
static gint gtk_menu_get_popup_delay (GtkMenuShell *menu_shell);
static gint gtk_menu_get_popup_delay (GtkMenuShell *menu_shell);
static void gtk_menu_real_move_scroll (GtkMenu *menu,
GtkScrollType type);
static void gtk_menu_stop_navigating_submenu (GtkMenu *menu);
static gboolean gtk_menu_stop_navigating_submenu_cb (gpointer user_data);
@ -171,6 +179,8 @@ static void _gtk_menu_refresh_accel_paths (GtkMenu *menu,
static GtkMenuShellClass *parent_class = NULL;
static const gchar *attach_data_key = "gtk-menu-attach-data";
static guint menu_signals[LAST_SIGNAL] = { 0 };
GtkMenuPrivate *
gtk_menu_get_private (GtkMenu *menu)
{
@ -237,6 +247,16 @@ gtk_menu_class_init (GtkMenuClass *class)
gobject_class->set_property = gtk_menu_set_property;
gobject_class->get_property = gtk_menu_get_property;
menu_signals[MOVE_SCROLL] =
_gtk_binding_signal_new ("move_scroll",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_CALLBACK (gtk_menu_real_move_scroll),
NULL, NULL,
_gtk_marshal_VOID__ENUM,
G_TYPE_NONE, 1,
GTK_TYPE_SCROLL_TYPE);
g_object_class_install_property (gobject_class,
PROP_TEAROFF_TITLE,
g_param_spec_string ("tearoff-title",
@ -314,6 +334,46 @@ gtk_menu_class_init (GtkMenuClass *class)
"move_current", 1,
GTK_TYPE_MENU_DIRECTION_TYPE,
GTK_MENU_DIR_CHILD);
gtk_binding_entry_add_signal (binding_set,
GDK_Home, 0,
"move_scroll", 1,
GTK_TYPE_SCROLL_TYPE,
GTK_SCROLL_START);
gtk_binding_entry_add_signal (binding_set,
GDK_KP_Home, 0,
"move_scroll", 1,
GTK_TYPE_SCROLL_TYPE,
GTK_SCROLL_START);
gtk_binding_entry_add_signal (binding_set,
GDK_End, 0,
"move_scroll", 1,
GTK_TYPE_SCROLL_TYPE,
GTK_SCROLL_END);
gtk_binding_entry_add_signal (binding_set,
GDK_KP_End, 0,
"move_scroll", 1,
GTK_TYPE_SCROLL_TYPE,
GTK_SCROLL_END);
gtk_binding_entry_add_signal (binding_set,
GDK_Page_Up, 0,
"move_scroll", 1,
GTK_TYPE_SCROLL_TYPE,
GTK_SCROLL_PAGE_UP);
gtk_binding_entry_add_signal (binding_set,
GDK_KP_Page_Up, 0,
"move_scroll", 1,
GTK_TYPE_SCROLL_TYPE,
GTK_SCROLL_PAGE_UP);
gtk_binding_entry_add_signal (binding_set,
GDK_Page_Down, 0,
"move_scroll", 1,
GTK_TYPE_SCROLL_TYPE,
GTK_SCROLL_PAGE_DOWN);
gtk_binding_entry_add_signal (binding_set,
GDK_KP_Page_Down, 0,
"move_scroll", 1,
GTK_TYPE_SCROLL_TYPE,
GTK_SCROLL_PAGE_DOWN);
gtk_settings_install_property (g_param_spec_boolean ("gtk-can-change-accels",
_("Can change accelerators"),
@ -2730,7 +2790,9 @@ gtk_menu_scroll_to (GtkMenu *menu,
menu->tearoff_adjustment &&
(menu->tearoff_adjustment->value != offset))
{
menu->tearoff_adjustment->value = offset;
menu->tearoff_adjustment->value =
CLAMP (offset,
0, menu->tearoff_adjustment->upper - menu->tearoff_adjustment->page_size);
gtk_adjustment_value_changed (menu->tearoff_adjustment);
}
@ -2745,11 +2807,11 @@ gtk_menu_scroll_to (GtkMenu *menu,
x = border_width + widget->style->xthickness;
y = border_width + widget->style->ythickness;
if (!menu->tearoff_active)
{
last_visible = menu->upper_arrow_visible;
menu->upper_arrow_visible = (offset > 0);
menu->upper_arrow_visible = (view_height < menu_height && offset > 0);
if (menu->upper_arrow_visible)
view_height -= MENU_SCROLL_ARROW_HEIGHT;
@ -2763,9 +2825,9 @@ gtk_menu_scroll_to (GtkMenu *menu,
if (menu->scroll_step < 0)
gtk_menu_stop_scrolling (menu);
}
last_visible = menu->lower_arrow_visible;
menu->lower_arrow_visible = (view_height + offset < menu_height);
menu->lower_arrow_visible = (view_height < menu_height && offset < menu_height - view_height);
if (menu->lower_arrow_visible)
view_height -= MENU_SCROLL_ARROW_HEIGHT;
@ -2800,14 +2862,54 @@ gtk_menu_scroll_to (GtkMenu *menu,
menu->scroll_offset = offset;
}
static gboolean
compute_child_offset (GtkMenu *menu,
GtkWidget *menu_item,
gint *offset,
gint *height,
gboolean *is_last_child)
{
GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
GList *children;
gint child_offset = 0;
for (children = menu_shell->children; children; children = children->next)
{
GtkWidget *child = children->data;
GtkRequisition child_requisition;
gint child_height;
if (GTK_WIDGET_VISIBLE (child))
{
gtk_widget_size_request (child, &child_requisition);
child_height = child_requisition.height;
}
else
child_height = 0;
if (child == menu_item)
{
if (is_last_child)
*is_last_child = (children == NULL);
if (offset)
*offset = child_offset;
if (height)
*height = child_height;
return TRUE;
}
child_offset += child_height;
}
return FALSE;
}
static void
gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
GtkWidget *menu_item)
{
GtkMenu *menu;
GtkWidget *child;
GList *children;
GtkRequisition child_requisition;
gint child_offset, child_height;
gint width, height;
gint y;
@ -2821,37 +2923,15 @@ gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
* visible.
*/
child = NULL;
child_offset = 0;
child_height = 0;
children = menu_shell->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child))
{
gtk_widget_size_request (child, &child_requisition);
child_offset += child_height;
child_height = child_requisition.height;
}
if (child == menu_item)
{
last_child = (children == NULL);
break;
}
}
if (child == menu_item)
if (compute_child_offset (menu, menu_item,
&child_offset, &child_height, &last_child))
{
y = menu->scroll_offset;
gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
height -= 2*GTK_CONTAINER (menu)->border_width + 2*GTK_WIDGET (menu)->style->ythickness;
if (child_offset + child_height <= y)
if (child_offset < y)
{
/* Ignore the enter event we might get if the pointer is on the menu
*/
@ -2866,7 +2946,7 @@ gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
if (menu->lower_arrow_visible && !menu->tearoff_active)
arrow_height += MENU_SCROLL_ARROW_HEIGHT;
if (child_offset >= y + height - arrow_height)
if (child_offset + child_height > y + height - arrow_height)
{
arrow_height = 0;
if (!last_child && !menu->tearoff_active)
@ -3022,3 +3102,136 @@ gtk_menu_get_popup_delay (GtkMenuShell *menu_shell)
return popup_delay;
}
static gint
get_visible_size (GtkMenu *menu)
{
GtkWidget *widget = GTK_WIDGET (menu);
GtkContainer *container = GTK_CONTAINER (menu);
gint menu_height = (widget->allocation.height
- 2 * (container->border_width
+ widget->style->ythickness));
if (menu->upper_arrow_visible && !menu->tearoff_active)
menu_height -= MENU_SCROLL_ARROW_HEIGHT;
if (menu->lower_arrow_visible && !menu->tearoff_active)
menu_height -= MENU_SCROLL_ARROW_HEIGHT;
return menu_height;
}
/* Find the sensitive on-screen child containing @y, or if none,
* the nearest selectable onscreen child. (%NULL if none)
*/
static GtkWidget *
child_at (GtkMenu *menu,
gint y)
{
GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
GtkWidget *child = NULL;
gint child_offset = 0;
GList *children;
gint menu_height;
gint lower, upper; /* Onscreen bounds */
menu_height = get_visible_size (menu);
lower = menu->scroll_offset;
upper = menu->scroll_offset + menu_height;
for (children = menu_shell->children; children; children = children->next)
{
if (GTK_WIDGET_VISIBLE (children->data))
{
GtkRequisition child_requisition;
gtk_widget_size_request (children->data, &child_requisition);
if (_gtk_menu_item_is_selectable (children->data) &&
child_offset >= lower &&
child_offset + child_requisition.height <= upper)
{
child = children->data;
if (child_offset + child_requisition.height > y &&
!GTK_IS_TEAROFF_MENU_ITEM (child))
return child;
}
child_offset += child_requisition.height;
}
}
return child;
}
static void
gtk_menu_real_move_scroll (GtkMenu *menu,
GtkScrollType type)
{
GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
switch (type)
{
case GTK_SCROLL_PAGE_UP:
case GTK_SCROLL_PAGE_DOWN:
{
gint page_size = get_visible_size (menu);
gint old_offset;
gint child_offset = 0;
gboolean old_upper_arrow_visible;
gint step;
if (type == GTK_SCROLL_PAGE_UP)
step = - page_size;
else
step = page_size;
if (menu_shell->active_menu_item)
{
gint child_height;
compute_child_offset (menu, menu_shell->active_menu_item,
&child_offset, &child_height, NULL);
child_offset += child_height / 2;
}
menu_shell->ignore_enter = TRUE;
old_upper_arrow_visible = menu->upper_arrow_visible && !menu->tearoff_active;
old_offset = menu->scroll_offset;
gtk_menu_scroll_to (menu, menu->scroll_offset + step);
if (menu_shell->active_menu_item)
{
GtkWidget *new_child;
gboolean new_upper_arrow_visible = menu->upper_arrow_visible && !menu->tearoff_active;
if (menu->scroll_offset != old_offset)
step = menu->scroll_offset - old_offset;
step -= (new_upper_arrow_visible - old_upper_arrow_visible) * MENU_SCROLL_ARROW_HEIGHT;
new_child = child_at (menu, child_offset + step);
if (new_child)
gtk_menu_shell_select_item (menu_shell, new_child);
}
}
break;
case GTK_SCROLL_START:
/* Ignore the enter event we might get if the pointer is on the menu
*/
menu_shell->ignore_enter = TRUE;
gtk_menu_scroll_to (menu, 0);
gtk_menu_shell_select_first (menu_shell, TRUE);
break;
case GTK_SCROLL_END:
/* Ignore the enter event we might get if the pointer is on the menu
*/
menu_shell->ignore_enter = TRUE;
gtk_menu_scroll_to (menu, G_MAXINT);
_gtk_menu_shell_select_last (menu_shell, TRUE);
break;
default:
break;
}
}

57
gtk/gtkmenushell.c
View File

@ -185,35 +185,6 @@ gtk_menu_shell_get_type (void)
return menu_shell_type;
}
static guint
binding_signal_new (const gchar *signal_name,
GType itype,
GSignalFlags signal_flags,
GCallback handler,
GSignalAccumulator accumulator,
gpointer accu_data,
GSignalCMarshaller c_marshaller,
GType return_type,
guint n_params,
...)
{
va_list args;
guint signal_id;
g_return_val_if_fail (signal_name != NULL, 0);
va_start (args, n_params);
signal_id = g_signal_new_valist (signal_name, itype, signal_flags,
g_cclosure_new (handler, NULL, NULL),
accumulator, accu_data, c_marshaller,
return_type, n_params, args);
va_end (args);
return signal_id;
}
static void
gtk_menu_shell_class_init (GtkMenuShellClass *klass)
{
@ -293,14 +264,14 @@ gtk_menu_shell_class_init (GtkMenuShellClass *klass)
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
menu_shell_signals[CYCLE_FOCUS] =
binding_signal_new ("cycle_focus",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_CALLBACK (gtk_real_menu_shell_cycle_focus),
NULL, NULL,
_gtk_marshal_VOID__ENUM,
G_TYPE_NONE, 1,
GTK_TYPE_DIRECTION_TYPE);
_gtk_binding_signal_new ("cycle_focus",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_CALLBACK (gtk_real_menu_shell_cycle_focus),
NULL, NULL,
_gtk_marshal_VOID__ENUM,
G_TYPE_NONE, 1,
GTK_TYPE_DIRECTION_TYPE);
binding_set = gtk_binding_set_by_class (klass);
@ -861,7 +832,9 @@ gtk_menu_shell_select_item (GtkMenuShell *menu_shell,
class = GTK_MENU_SHELL_GET_CLASS (menu_shell);
if (class->select_item)
if (class->select_item &&
!(menu_shell->active &&
menu_shell->active_menu_item == menu_item))
class->select_item (menu_shell, menu_item);
}
@ -1033,9 +1006,9 @@ gtk_menu_shell_select_first (GtkMenuShell *menu_shell,
gtk_menu_shell_select_item (menu_shell, to_select);
}
static void
gtk_menu_shell_select_last (GtkMenuShell *menu_shell,
gboolean search_sensitive)
void
_gtk_menu_shell_select_last (GtkMenuShell *menu_shell,
gboolean search_sensitive)
{
GtkWidget *to_select = NULL;
GList *tmp_list;
@ -1134,7 +1107,7 @@ gtk_real_menu_shell_move_current (GtkMenuShell *menu_shell,
if (!had_selection &&
!menu_shell->active_menu_item &&
menu_shell->children)
gtk_menu_shell_select_last (menu_shell, TRUE);
_gtk_menu_shell_select_last (menu_shell, TRUE);
break;
case GTK_MENU_DIR_NEXT:
gtk_menu_shell_move_selected (menu_shell, 1);

2
gtk/gtkmenushell.h
View File

@ -112,6 +112,8 @@ void gtk_menu_shell_activate_item (GtkMenuShell *menu_shell,
gboolean force_deactivate);
void gtk_menu_shell_select_first (GtkMenuShell *menu_shell,
gboolean search_sensitive);
void _gtk_menu_shell_select_last (GtkMenuShell *menu_shell,
gboolean search_sensitive);
void _gtk_menu_shell_activate (GtkMenuShell *menu_shell);
gint _gtk_menu_shell_get_popup_delay (GtkMenuShell *menu_shell);