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[~andy/gtk] / gtk / gtkmenushell.c
index bb6094cd8285595662810a5fb89ddac55a2bf50a..cb43ce1927f70710695cefcc4fd0b7bb7d36e653 100644 (file)
  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
  *
  * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * 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
- * Library General Public License for more details.
+ * Lesser General Public License for more details.
  *
- * You should have received a copy of the GNU Library General Public
+ * 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.
  */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
+ * file for a list of people on the GTK+ Team.  See the ChangeLog
+ * files for a list of changes.  These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
+ */
+
+#define GTK_MENU_INTERNALS
+
+#include <config.h>
+#include "gdk/gdkkeysyms.h"
+#include "gtkbindings.h"
+#include "gtkkeyhash.h"
 #include "gtkmain.h"
+#include "gtkmarshalers.h"
+#include "gtkmenubar.h"
 #include "gtkmenuitem.h"
 #include "gtkmenushell.h"
-#include "gtksignal.h"
-
+#include "gtkmnemonichash.h"
+#include "gtktearoffmenuitem.h"
+#include "gtkwindow.h"
+#include "gtkprivate.h"
+#include "gtkintl.h"
+#include "gtkalias.h"
 
 #define MENU_SHELL_TIMEOUT   500
-#define MENU_SHELL_CLASS(w)  GTK_MENU_SHELL_CLASS (GTK_OBJECT (w)->klass)
 
+#define PACK_DIRECTION(m)                                 \
+   (GTK_IS_MENU_BAR (m)                                   \
+     ? gtk_menu_bar_get_pack_direction (GTK_MENU_BAR (m)) \
+     : GTK_PACK_DIRECTION_LTR)
 
 enum {
   DEACTIVATE,
   SELECTION_DONE,
+  MOVE_CURRENT,
+  ACTIVATE_CURRENT,
+  CANCEL,
+  CYCLE_FOCUS,
   LAST_SIGNAL
 };
 
+enum {
+  PROP_0,
+  PROP_TAKE_FOCUS
+};
+
+typedef void (*GtkMenuShellSignal1) (GtkObject           *object,
+                                    GtkMenuDirectionType arg1,
+                                    gpointer             data);
+typedef void (*GtkMenuShellSignal2) (GtkObject *object,
+                                    gboolean   arg1,
+                                    gpointer   data);
+
+/* Terminology:
+ * 
+ * A menu item can be "selected", this means that it is displayed
+ * in the prelight state, and if it has a submenu, that submenu
+ * will be popped up. 
+ * 
+ * A menu is "active" when it is visible onscreen and the user
+ * is selecting from it. A menubar is not active until the user
+ * clicks on one of its menuitems. When a menu is active,
+ * passing the mouse over a submenu will pop it up.
+ *
+ * menu_shell->active_menu_item, is however, not an "active"
+ * menu item (there is no such thing) but rather, the selected
+ * menu item in that MenuShell, if there is one.
+ *
+ * There is also is a concept of the current menu and a current
+ * menu item. The current menu item is the selected menu item
+ * that is furthest down in the heirarchy. (Every active menu_shell
+ * does not necessarily contain a selected menu item, but if
+ * it does, then menu_shell->parent_menu_shell must also contain
+ * a selected menu item. The current menu is the menu that 
+ * contains the current menu_item. It will always have a GTK
+ * grab and receive all key presses.
+ *
+ *
+ * Action signals:
+ *
+ *  ::move_current (GtkMenuDirection *dir)
+ *     Moves the current menu item in direction 'dir':
+ *
+ *       GTK_MENU_DIR_PARENT: To the parent menu shell
+ *       GTK_MENU_DIR_CHILD: To the child menu shell (if this item has
+ *          a submenu.
+ *       GTK_MENU_DIR_NEXT/PREV: To the next or previous item
+ *          in this menu.
+ * 
+ *     As a a bit of a hack to get movement between menus and
+ *     menubars working, if submenu_placement is different for
+ *     the menu and its MenuShell then the following apply:
+ * 
+ *       - For 'parent' the current menu is not just moved to
+ *         the parent, but moved to the previous entry in the parent
+ *       - For 'child', if there is no child, then current is
+ *         moved to the next item in the parent.
+ *
+ *    Note that the above explanation of ::move_current was written
+ *    before menus and menubars had support for RTL flipping and
+ *    different packing directions, and therefore only applies for
+ *    when text direction and packing direction are both left-to-right.
+ * 
+ *  ::activate_current (GBoolean *force_hide)
+ *     Activate the current item. If 'force_hide' is true, hide
+ *     the current menu item always. Otherwise, only hide
+ *     it if menu_item->klass->hide_on_activate is true.
+ *
+ *  ::cancel ()
+ *     Cancels the current selection
+ */
+
+#define GTK_MENU_SHELL_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_MENU_SHELL, GtkMenuShellPrivate))
+
+typedef struct _GtkMenuShellPrivate GtkMenuShellPrivate;
 
-static void gtk_menu_shell_class_init        (GtkMenuShellClass *klass);
-static void gtk_menu_shell_init              (GtkMenuShell      *menu_shell);
-static void gtk_menu_shell_map               (GtkWidget         *widget);
+struct _GtkMenuShellPrivate
+{
+  GtkMnemonicHash *mnemonic_hash;
+  GtkKeyHash *key_hash;
+
+  gboolean take_focus;
+};
+
+static void gtk_menu_shell_set_property      (GObject           *object,
+                                              guint              prop_id,
+                                              const GValue      *value,
+                                              GParamSpec        *pspec);
+static void gtk_menu_shell_get_property      (GObject           *object,
+                                              guint              prop_id,
+                                              GValue            *value,
+                                              GParamSpec        *pspec);
 static void gtk_menu_shell_realize           (GtkWidget         *widget);
+static void gtk_menu_shell_finalize          (GObject           *object);
 static gint gtk_menu_shell_button_press      (GtkWidget         *widget,
                                              GdkEventButton    *event);
 static gint gtk_menu_shell_button_release    (GtkWidget         *widget,
                                              GdkEventButton    *event);
+static gint gtk_menu_shell_key_press         (GtkWidget                *widget,
+                                             GdkEventKey       *event);
 static gint gtk_menu_shell_enter_notify      (GtkWidget         *widget,
                                              GdkEventCrossing  *event);
 static gint gtk_menu_shell_leave_notify      (GtkWidget         *widget,
                                              GdkEventCrossing  *event);
+static void gtk_menu_shell_screen_changed    (GtkWidget         *widget,
+                                             GdkScreen         *previous_screen);
+static gboolean gtk_menu_shell_grab_broken       (GtkWidget         *widget,
+                                             GdkEventGrabBroken *event);
 static void gtk_menu_shell_add               (GtkContainer      *container,
                                              GtkWidget         *widget);
 static void gtk_menu_shell_remove            (GtkContainer      *container,
                                              GtkWidget         *widget);
-static void gtk_menu_shell_foreach           (GtkContainer      *container,
+static void gtk_menu_shell_forall            (GtkContainer      *container,
+                                             gboolean           include_internals,
                                              GtkCallback        callback,
                                              gpointer           callback_data);
+static void gtk_menu_shell_real_insert       (GtkMenuShell *menu_shell,
+                                             GtkWidget    *child,
+                                             gint          position);
 static void gtk_real_menu_shell_deactivate   (GtkMenuShell      *menu_shell);
 static gint gtk_menu_shell_is_item           (GtkMenuShell      *menu_shell,
                                              GtkWidget         *child);
 static GtkWidget *gtk_menu_shell_get_item    (GtkMenuShell      *menu_shell,
                                              GdkEvent          *event);
-static GtkType gtk_menu_shell_child_type     (GtkContainer      *container);
+static GType    gtk_menu_shell_child_type  (GtkContainer      *container);
+static void gtk_menu_shell_real_select_item  (GtkMenuShell      *menu_shell,
+                                             GtkWidget         *menu_item);
+static gboolean gtk_menu_shell_select_submenu_first (GtkMenuShell   *menu_shell); 
+
+static void gtk_real_menu_shell_move_current (GtkMenuShell      *menu_shell,
+                                             GtkMenuDirectionType direction);
+static void gtk_real_menu_shell_activate_current (GtkMenuShell      *menu_shell,
+                                                 gboolean           force_hide);
+static void gtk_real_menu_shell_cancel           (GtkMenuShell      *menu_shell);
+static void gtk_real_menu_shell_cycle_focus      (GtkMenuShell      *menu_shell,
+                                                 GtkDirectionType   dir);
+
+static void     gtk_menu_shell_reset_key_hash    (GtkMenuShell *menu_shell);
+static gboolean gtk_menu_shell_activate_mnemonic (GtkMenuShell *menu_shell,
+                                                 GdkEventKey  *event);
 
-
-static GtkContainerClass *parent_class = NULL;
 static guint menu_shell_signals[LAST_SIGNAL] = { 0 };
 
-
-GtkType
-gtk_menu_shell_get_type (void)
-{
-  static GtkType menu_shell_type = 0;
-
-  if (!menu_shell_type)
-    {
-      GtkTypeInfo menu_shell_info =
-      {
-       "GtkMenuShell",
-       sizeof (GtkMenuShell),
-       sizeof (GtkMenuShellClass),
-       (GtkClassInitFunc) gtk_menu_shell_class_init,
-       (GtkObjectInitFunc) gtk_menu_shell_init,
-       /* reserved_1 */ NULL,
-        /* reserved_2 */ NULL,
-        (GtkClassInitFunc) NULL,
-      };
-
-      menu_shell_type = gtk_type_unique (gtk_container_get_type (), &menu_shell_info);
-    }
-
-  return menu_shell_type;
-}
+G_DEFINE_TYPE (GtkMenuShell, gtk_menu_shell, GTK_TYPE_CONTAINER)
 
 static void
 gtk_menu_shell_class_init (GtkMenuShellClass *klass)
 {
-  GtkObjectClass *object_class;
+  GObjectClass *object_class;
   GtkWidgetClass *widget_class;
   GtkContainerClass *container_class;
 
-  object_class = (GtkObjectClass*) klass;
+  GtkBindingSet *binding_set;
+
+  object_class = (GObjectClass*) klass;
   widget_class = (GtkWidgetClass*) klass;
   container_class = (GtkContainerClass*) klass;
 
-  parent_class = gtk_type_class (gtk_container_get_type ());
+  object_class->set_property = gtk_menu_shell_set_property;
+  object_class->get_property = gtk_menu_shell_get_property;
+  object_class->finalize = gtk_menu_shell_finalize;
 
-  menu_shell_signals[DEACTIVATE] =
-    gtk_signal_new ("deactivate",
-                    GTK_RUN_FIRST,
-                    object_class->type,
-                    GTK_SIGNAL_OFFSET (GtkMenuShellClass, deactivate),
-                    gtk_signal_default_marshaller,
-                   GTK_TYPE_NONE, 0);
-  menu_shell_signals[SELECTION_DONE] =
-    gtk_signal_new ("selection-done",
-                    GTK_RUN_FIRST,
-                    object_class->type,
-                    GTK_SIGNAL_OFFSET (GtkMenuShellClass, selection_done),
-                    gtk_signal_default_marshaller,
-                   GTK_TYPE_NONE, 0);
-  gtk_object_class_add_signals (object_class, menu_shell_signals, LAST_SIGNAL);
-
-  widget_class->map = gtk_menu_shell_map;
   widget_class->realize = gtk_menu_shell_realize;
   widget_class->button_press_event = gtk_menu_shell_button_press;
   widget_class->button_release_event = gtk_menu_shell_button_release;
+  widget_class->grab_broken_event = gtk_menu_shell_grab_broken;
+  widget_class->key_press_event = gtk_menu_shell_key_press;
   widget_class->enter_notify_event = gtk_menu_shell_enter_notify;
   widget_class->leave_notify_event = gtk_menu_shell_leave_notify;
+  widget_class->screen_changed = gtk_menu_shell_screen_changed;
 
   container_class->add = gtk_menu_shell_add;
   container_class->remove = gtk_menu_shell_remove;
-  container_class->foreach = gtk_menu_shell_foreach;
+  container_class->forall = gtk_menu_shell_forall;
   container_class->child_type = gtk_menu_shell_child_type;
 
   klass->submenu_placement = GTK_TOP_BOTTOM;
   klass->deactivate = gtk_real_menu_shell_deactivate;
   klass->selection_done = NULL;
+  klass->move_current = gtk_real_menu_shell_move_current;
+  klass->activate_current = gtk_real_menu_shell_activate_current;
+  klass->cancel = gtk_real_menu_shell_cancel;
+  klass->select_item = gtk_menu_shell_real_select_item;
+  klass->insert = gtk_menu_shell_real_insert;
+
+  menu_shell_signals[DEACTIVATE] =
+    g_signal_new (I_("deactivate"),
+                 G_OBJECT_CLASS_TYPE (object_class),
+                 G_SIGNAL_RUN_FIRST,
+                 G_STRUCT_OFFSET (GtkMenuShellClass, deactivate),
+                 NULL, NULL,
+                 _gtk_marshal_VOID__VOID,
+                 G_TYPE_NONE, 0);
+  menu_shell_signals[SELECTION_DONE] =
+    g_signal_new (I_("selection-done"),
+                 G_OBJECT_CLASS_TYPE (object_class),
+                 G_SIGNAL_RUN_FIRST,
+                 G_STRUCT_OFFSET (GtkMenuShellClass, selection_done),
+                 NULL, NULL,
+                 _gtk_marshal_VOID__VOID,
+                 G_TYPE_NONE, 0);
+  menu_shell_signals[MOVE_CURRENT] =
+    g_signal_new (I_("move_current"),
+                 G_OBJECT_CLASS_TYPE (object_class),
+                 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                 G_STRUCT_OFFSET (GtkMenuShellClass, move_current),
+                 NULL, NULL,
+                 _gtk_marshal_VOID__ENUM,
+                 G_TYPE_NONE, 1, 
+                 GTK_TYPE_MENU_DIRECTION_TYPE);
+  menu_shell_signals[ACTIVATE_CURRENT] =
+    g_signal_new (I_("activate_current"),
+                 G_OBJECT_CLASS_TYPE (object_class),
+                 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                 G_STRUCT_OFFSET (GtkMenuShellClass, activate_current),
+                 NULL, NULL,
+                 _gtk_marshal_VOID__BOOLEAN,
+                 G_TYPE_NONE, 1, 
+                 G_TYPE_BOOLEAN);
+  menu_shell_signals[CANCEL] =
+    g_signal_new (I_("cancel"),
+                 G_OBJECT_CLASS_TYPE (object_class),
+                 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                 G_STRUCT_OFFSET (GtkMenuShellClass, cancel),
+                 NULL, NULL,
+                 _gtk_marshal_VOID__VOID,
+                 G_TYPE_NONE, 0);
+  menu_shell_signals[CYCLE_FOCUS] =
+    _gtk_binding_signal_new (I_("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);
+  gtk_binding_entry_add_signal (binding_set,
+                               GDK_Escape, 0,
+                               "cancel", 0);
+  gtk_binding_entry_add_signal (binding_set,
+                               GDK_Return, 0,
+                               "activate_current", 1,
+                               G_TYPE_BOOLEAN,
+                               TRUE);
+  gtk_binding_entry_add_signal (binding_set,
+                               GDK_KP_Enter, 0,
+                               "activate_current", 1,
+                               G_TYPE_BOOLEAN,
+                               TRUE);
+  gtk_binding_entry_add_signal (binding_set,
+                               GDK_space, 0,
+                               "activate_current", 1,
+                               G_TYPE_BOOLEAN,
+                               FALSE);
+  gtk_binding_entry_add_signal (binding_set,
+                               GDK_KP_Space, 0,
+                               "activate_current", 1,
+                               G_TYPE_BOOLEAN,
+                               FALSE);
+  gtk_binding_entry_add_signal (binding_set,
+                               GDK_F10, 0,
+                               "cycle_focus", 1,
+                                GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
+  gtk_binding_entry_add_signal (binding_set,
+                               GDK_F10, GDK_SHIFT_MASK,
+                               "cycle_focus", 1,
+                                GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
+
+  /**
+   * GtkMenuShell:take-focus:
+   *
+   * A boolean that determines whether the menu and its submenus grab the
+   * keyboard focus. See gtk_menu_shell_set_take_focus() and
+   * gtk_menu_shell_get_take_focus().
+   *
+   * Since: 2.8
+   **/
+  g_object_class_install_property (object_class,
+                                   PROP_TAKE_FOCUS,
+                                   g_param_spec_boolean ("take-focus",
+                                                        P_("Take Focus"),
+                                                        P_("A boolean that determines whether the menu grabs the keyboard focus"),
+                                                        TRUE,
+                                                        GTK_PARAM_READWRITE));
+
+  g_type_class_add_private (object_class, sizeof (GtkMenuShellPrivate));
 }
 
-static GtkType
+static GType
 gtk_menu_shell_child_type (GtkContainer     *container)
 {
   return GTK_TYPE_MENU_ITEM;
@@ -144,18 +358,75 @@ gtk_menu_shell_child_type (GtkContainer     *container)
 static void
 gtk_menu_shell_init (GtkMenuShell *menu_shell)
 {
+  GtkMenuShellPrivate *priv = GTK_MENU_SHELL_GET_PRIVATE (menu_shell);
+
   menu_shell->children = NULL;
   menu_shell->active_menu_item = NULL;
   menu_shell->parent_menu_shell = NULL;
   menu_shell->active = FALSE;
   menu_shell->have_grab = FALSE;
   menu_shell->have_xgrab = FALSE;
-  menu_shell->ignore_leave = FALSE;
   menu_shell->button = 0;
-  menu_shell->menu_flag = 0;
   menu_shell->activate_time = 0;
+
+  priv->mnemonic_hash = NULL;
+  priv->key_hash = NULL;
+  priv->take_focus = TRUE;
 }
 
+static void
+gtk_menu_shell_set_property (GObject      *object,
+                             guint         prop_id,
+                             const GValue *value,
+                             GParamSpec   *pspec)
+{
+  GtkMenuShell *menu_shell = GTK_MENU_SHELL (object);
+
+  switch (prop_id)
+    {
+    case PROP_TAKE_FOCUS:
+      gtk_menu_shell_set_take_focus (menu_shell, g_value_get_boolean (value));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_menu_shell_get_property (GObject     *object,
+                             guint        prop_id,
+                             GValue      *value,
+                             GParamSpec  *pspec)
+{
+  GtkMenuShell *menu_shell = GTK_MENU_SHELL (object);
+
+  switch (prop_id)
+    {
+    case PROP_TAKE_FOCUS:
+      g_value_set_boolean (value, gtk_menu_shell_get_take_focus (menu_shell));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_menu_shell_finalize (GObject *object)
+{
+  GtkMenuShell *menu_shell = GTK_MENU_SHELL (object);
+  GtkMenuShellPrivate *priv = GTK_MENU_SHELL_GET_PRIVATE (menu_shell);
+
+  if (priv->mnemonic_hash)
+    _gtk_mnemonic_hash_free (priv->mnemonic_hash);
+  if (priv->key_hash)
+    _gtk_key_hash_free (priv->key_hash);
+
+  G_OBJECT_CLASS (gtk_menu_shell_parent_class)->finalize (object);
+}
+
+
 void
 gtk_menu_shell_append (GtkMenuShell *menu_shell,
                       GtkWidget    *child)
@@ -175,88 +446,33 @@ gtk_menu_shell_insert (GtkMenuShell *menu_shell,
                       GtkWidget    *child,
                       gint          position)
 {
-  GList *tmp_list;
-  GList *new_list;
-  gint nchildren;
+  GtkMenuShellClass *class;
 
-  g_return_if_fail (menu_shell != NULL);
   g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
-  g_return_if_fail (child != NULL);
   g_return_if_fail (GTK_IS_MENU_ITEM (child));
 
-  gtk_widget_set_parent (child, GTK_WIDGET (menu_shell));
-
-  if (GTK_WIDGET_VISIBLE (child->parent))
-    {
-      if (GTK_WIDGET_REALIZED (child->parent) &&
-         !GTK_WIDGET_REALIZED (child))
-       gtk_widget_realize (child);
-
-      if (GTK_WIDGET_MAPPED (child->parent) &&
-         !GTK_WIDGET_MAPPED (child))
-       gtk_widget_map (child);
-    }
+  class = GTK_MENU_SHELL_GET_CLASS (menu_shell);
 
-  nchildren = g_list_length (menu_shell->children);
-  if ((position < 0) || (position > nchildren))
-    position = nchildren;
+  if (class->insert)
+    class->insert (menu_shell, child, position);
+}
 
-  if (position == nchildren)
-    {
-      menu_shell->children = g_list_append (menu_shell->children, child);
-    }
-  else
-    {
-      tmp_list = g_list_nth (menu_shell->children, position);
-      new_list = g_list_alloc ();
-      new_list->data = child;
-
-      if (tmp_list->prev)
-       tmp_list->prev->next = new_list;
-      new_list->next = tmp_list;
-      new_list->prev = tmp_list->prev;
-      tmp_list->prev = new_list;
-
-      if (tmp_list == menu_shell->children)
-       menu_shell->children = new_list;
-    }
+static void
+gtk_menu_shell_real_insert (GtkMenuShell *menu_shell,
+                           GtkWidget    *child,
+                           gint          position)
+{
+  menu_shell->children = g_list_insert (menu_shell->children, child, position);
 
-  if (GTK_WIDGET_VISIBLE (menu_shell))
-    gtk_widget_queue_resize (GTK_WIDGET (menu_shell));
+  gtk_widget_set_parent (child, GTK_WIDGET (menu_shell));
 }
 
 void
 gtk_menu_shell_deactivate (GtkMenuShell *menu_shell)
 {
-  g_return_if_fail (menu_shell != NULL);
   g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
 
-  gtk_signal_emit (GTK_OBJECT (menu_shell), menu_shell_signals[DEACTIVATE]);
-}
-
-static void
-gtk_menu_shell_map (GtkWidget *widget)
-{
-  GtkMenuShell *menu_shell;
-  GtkWidget *child;
-  GList *children;
-
-  g_return_if_fail (widget != NULL);
-  g_return_if_fail (GTK_IS_MENU_SHELL (widget));
-
-  menu_shell = GTK_MENU_SHELL (widget);
-  GTK_WIDGET_SET_FLAGS (menu_shell, GTK_MAPPED);
-  gdk_window_show (widget->window);
-
-  children = menu_shell->children;
-  while (children)
-    {
-      child = children->data;
-      children = children->next;
-
-      if (GTK_WIDGET_VISIBLE (child) && !GTK_WIDGET_MAPPED (child))
-       gtk_widget_map (child);
-    }
+  g_signal_emit (menu_shell, menu_shell_signals[DEACTIVATE], 0);
 }
 
 static void
@@ -265,7 +481,6 @@ gtk_menu_shell_realize (GtkWidget *widget)
   GdkWindowAttr attributes;
   gint attributes_mask;
 
-  g_return_if_fail (widget != NULL);
   g_return_if_fail (GTK_IS_MENU_SHELL (widget));
 
   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
@@ -282,6 +497,7 @@ gtk_menu_shell_realize (GtkWidget *widget)
   attributes.event_mask |= (GDK_EXPOSURE_MASK |
                            GDK_BUTTON_PRESS_MASK |
                            GDK_BUTTON_RELEASE_MASK |
+                           GDK_KEY_PRESS_MASK |
                            GDK_ENTER_NOTIFY_MASK |
                            GDK_LEAVE_NOTIFY_MASK);
 
@@ -293,6 +509,17 @@ gtk_menu_shell_realize (GtkWidget *widget)
   gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 }
 
+void
+_gtk_menu_shell_activate (GtkMenuShell *menu_shell)
+{
+  if (!menu_shell->active)
+    {
+      gtk_grab_add (GTK_WIDGET (menu_shell));
+      menu_shell->have_grab = TRUE;
+      menu_shell->active = TRUE;
+    }
+}
+
 static gint
 gtk_menu_shell_button_press (GtkWidget      *widget,
                             GdkEventButton *event)
@@ -300,7 +527,6 @@ gtk_menu_shell_button_press (GtkWidget      *widget,
   GtkMenuShell *menu_shell;
   GtkWidget *menu_item;
 
-  g_return_val_if_fail (widget != NULL, FALSE);
   g_return_val_if_fail (GTK_IS_MENU_SHELL (widget), FALSE);
   g_return_val_if_fail (event != NULL, FALSE);
 
@@ -311,33 +537,27 @@ gtk_menu_shell_button_press (GtkWidget      *widget,
 
   if (menu_shell->parent_menu_shell)
     {
-      gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent*) event);
+      return gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent*) event);
     }
   else if (!menu_shell->active || !menu_shell->button)
     {
-      if (!menu_shell->active)
-       {
-         gtk_grab_add (GTK_WIDGET (widget));
-         menu_shell->have_grab = TRUE;
-         menu_shell->active = TRUE;
-       }
+      _gtk_menu_shell_activate (menu_shell);
+      
       menu_shell->button = event->button;
 
       menu_item = gtk_menu_shell_get_item (menu_shell, (GdkEvent *)event);
 
-      if (menu_item &&
-         GTK_WIDGET_IS_SENSITIVE (menu_item))
+      if (menu_item && _gtk_menu_item_is_selectable (menu_item))
        {
          if ((menu_item->parent == widget) &&
              (menu_item != menu_shell->active_menu_item))
            {
-             if (menu_shell->active_menu_item)
-               gtk_menu_item_deselect (GTK_MENU_ITEM (menu_shell->active_menu_item));
-             
-             menu_shell->active_menu_item = menu_item;
-             gtk_menu_item_set_placement (GTK_MENU_ITEM (menu_shell->active_menu_item),
-                                          MENU_SHELL_CLASS (menu_shell)->submenu_placement);
-             gtk_menu_item_select (GTK_MENU_ITEM (menu_shell->active_menu_item));
+             if (GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement == GTK_TOP_BOTTOM)
+               {
+                 menu_shell->activate_time = event->time;
+               }
+      
+             gtk_menu_shell_select_item (menu_shell, menu_item);
            }
        }
     }
@@ -347,13 +567,33 @@ gtk_menu_shell_button_press (GtkWidget      *widget,
       if (widget == GTK_WIDGET (menu_shell))
        {
          gtk_menu_shell_deactivate (menu_shell);
-         gtk_signal_emit (GTK_OBJECT (menu_shell), menu_shell_signals[SELECTION_DONE]);
+         g_signal_emit (menu_shell, menu_shell_signals[SELECTION_DONE], 0);
        }
     }
 
   return TRUE;
 }
 
+static gboolean
+gtk_menu_shell_grab_broken (GtkWidget          *widget,
+                           GdkEventGrabBroken *event)
+{
+  GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget);
+
+  if (menu_shell->have_xgrab && event->grab_window == NULL)
+    {
+      /* Unset the active menu item so gtk_menu_popdown() doesn't see it.
+       */
+      
+      gtk_menu_shell_deselect (menu_shell);
+      
+      gtk_menu_shell_deactivate (menu_shell);
+      g_signal_emit (menu_shell, menu_shell_signals[SELECTION_DONE], 0);
+    }
+
+  return TRUE;
+}
+
 static gint
 gtk_menu_shell_button_release (GtkWidget      *widget,
                               GdkEventButton *event)
@@ -362,7 +602,6 @@ gtk_menu_shell_button_release (GtkWidget      *widget,
   GtkWidget *menu_item;
   gint deactivate;
 
-  g_return_val_if_fail (widget != NULL, FALSE);
   g_return_val_if_fail (GTK_IS_MENU_SHELL (widget), FALSE);
   g_return_val_if_fail (event != NULL, FALSE);
 
@@ -373,10 +612,9 @@ gtk_menu_shell_button_release (GtkWidget      *widget,
        {
          menu_shell->button = 0;
          if (menu_shell->parent_menu_shell)
-           gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent*) event);
-         return TRUE;
+           return gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent*) event);
        }
-      
+
       menu_shell->button = 0;
       menu_item = gtk_menu_shell_get_item (menu_shell, (GdkEvent*) event);
 
@@ -384,22 +622,25 @@ gtk_menu_shell_button_release (GtkWidget      *widget,
 
       if ((event->time - menu_shell->activate_time) > MENU_SHELL_TIMEOUT)
        {
-         if (menu_item && (menu_shell->active_menu_item == menu_item))
+         if (menu_item && (menu_shell->active_menu_item == menu_item) &&
+             _gtk_menu_item_is_selectable (menu_item))
            {
              if (GTK_MENU_ITEM (menu_item)->submenu == NULL)
                {
-                 gtk_menu_shell_deactivate (menu_shell);
-
-                 /* flush the x-queue, so any grabs are removed and
-                  * the menu is actually taken down
-                  */
-                 gdk_flush ();
-                 gtk_widget_activate (menu_item);
-
-                 gtk_signal_emit (GTK_OBJECT (menu_shell), menu_shell_signals[SELECTION_DONE]);
-                 
+                 gtk_menu_shell_activate_item (menu_shell, menu_item, TRUE);
                  return TRUE;
                }
+             else if (GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement != GTK_TOP_BOTTOM)
+               {
+                 gtk_menu_item_select (GTK_MENU_ITEM (menu_item));
+                 return TRUE;
+               }
+           }
+         else if (menu_item &&
+                  !_gtk_menu_item_is_selectable (menu_item) &&
+                  GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement != GTK_TOP_BOTTOM)
+           {
+             deactivate = FALSE;
            }
          else if (menu_shell->parent_menu_shell)
            {
@@ -407,32 +648,58 @@ gtk_menu_shell_button_release (GtkWidget      *widget,
              gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent*) event);
              return TRUE;
            }
+
+         /* If we ended up on an item with a submenu, leave the menu up.
+          */
+         if (menu_item && (menu_shell->active_menu_item == menu_item) &&
+             GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement != GTK_TOP_BOTTOM)
+           {
+             deactivate = FALSE;
+           }
        }
-      else
-       deactivate = FALSE;
-      
-      /* If the button click was very fast, or we ended up on a submenu,
-       * leave the menu up
-       */
-      if (!deactivate || 
-         (menu_item && (menu_shell->active_menu_item == menu_item)))
+      else /* a very fast press-release */
        {
+         /* We only ever want to prevent deactivation on the first
+           * press/release. Setting the time to zero is a bit of a
+          * hack, since we could be being triggered in the first
+          * few fractions of a second after a server time wraparound.
+          * the chances of that happening are ~1/10^6, without
+          * serious harm if we lose.
+          */
+         menu_shell->activate_time = 0;
          deactivate = FALSE;
-         menu_shell->ignore_leave = TRUE;
        }
-      else
-       deactivate = TRUE;
-
+      
       if (deactivate)
        {
          gtk_menu_shell_deactivate (menu_shell);
-         gtk_signal_emit (GTK_OBJECT (menu_shell), menu_shell_signals[SELECTION_DONE]);
+         g_signal_emit (menu_shell, menu_shell_signals[SELECTION_DONE], 0);
        }
     }
 
   return TRUE;
 }
 
+static gint
+gtk_menu_shell_key_press (GtkWidget   *widget,
+                         GdkEventKey *event)
+{
+  GtkMenuShell *menu_shell;
+  
+  g_return_val_if_fail (GTK_IS_MENU_SHELL (widget), FALSE);
+  g_return_val_if_fail (event != NULL, FALSE);
+      
+  menu_shell = GTK_MENU_SHELL (widget);
+
+  if (!menu_shell->active_menu_item && menu_shell->parent_menu_shell)
+    return gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent *)event);
+  
+  if (gtk_bindings_activate_event (GTK_OBJECT (widget), event))
+    return TRUE;
+
+  return gtk_menu_shell_activate_mnemonic (menu_shell, event);
+}
+
 static gint
 gtk_menu_shell_enter_notify (GtkWidget        *widget,
                             GdkEventCrossing *event)
@@ -440,34 +707,31 @@ gtk_menu_shell_enter_notify (GtkWidget        *widget,
   GtkMenuShell *menu_shell;
   GtkWidget *menu_item;
 
-  g_return_val_if_fail (widget != NULL, FALSE);
   g_return_val_if_fail (GTK_IS_MENU_SHELL (widget), FALSE);
   g_return_val_if_fail (event != NULL, FALSE);
 
   menu_shell = GTK_MENU_SHELL (widget);
+
   if (menu_shell->active)
     {
       menu_item = gtk_get_event_widget ((GdkEvent*) event);
 
-      if (!menu_item || !GTK_WIDGET_IS_SENSITIVE (menu_item))
+      if (!menu_item ||
+         (GTK_IS_MENU_ITEM (menu_item) && 
+          !_gtk_menu_item_is_selectable (menu_item)))
        return TRUE;
-
+      
       if ((menu_item->parent == widget) &&
          (menu_shell->active_menu_item != menu_item) &&
          GTK_IS_MENU_ITEM (menu_item))
        {
+         if (menu_shell->ignore_enter)
+           return TRUE;
+         
          if ((event->detail != GDK_NOTIFY_INFERIOR) &&
              (GTK_WIDGET_STATE (menu_item) != GTK_STATE_PRELIGHT))
            {
-             if (menu_shell->active_menu_item)
-               gtk_menu_item_deselect (GTK_MENU_ITEM (menu_shell->active_menu_item));
-
-             menu_shell->active_menu_item = menu_item;
-             gtk_menu_item_set_placement (GTK_MENU_ITEM (menu_shell->active_menu_item),
-                                          MENU_SHELL_CLASS (menu_shell)->submenu_placement);
-             gtk_menu_item_select (GTK_MENU_ITEM (menu_shell->active_menu_item));
-             if (GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu)
-               gtk_widget_activate (menu_shell->active_menu_item);
+             gtk_menu_shell_select_item (menu_shell, menu_item);
            }
        }
       else if (menu_shell->parent_menu_shell)
@@ -487,7 +751,6 @@ gtk_menu_shell_leave_notify (GtkWidget        *widget,
   GtkMenuItem *menu_item;
   GtkWidget *event_widget;
 
-  g_return_val_if_fail (widget != NULL, FALSE);
   g_return_val_if_fail (GTK_IS_MENU_SHELL (widget), FALSE);
   g_return_val_if_fail (event != NULL, FALSE);
 
@@ -501,13 +764,7 @@ gtk_menu_shell_leave_notify (GtkWidget        *widget,
 
       menu_item = GTK_MENU_ITEM (event_widget);
 
-      if (menu_shell->ignore_leave)
-       {
-         menu_shell->ignore_leave = FALSE;
-         return TRUE;
-       }
-
-      if (!GTK_WIDGET_IS_SENSITIVE (menu_item))
+      if (!_gtk_menu_item_is_selectable (event_widget))
        return TRUE;
 
       if ((menu_shell->active_menu_item == event_widget) &&
@@ -516,8 +773,7 @@ gtk_menu_shell_leave_notify (GtkWidget        *widget,
          if ((event->detail != GDK_NOTIFY_INFERIOR) &&
              (GTK_WIDGET_STATE (menu_item) != GTK_STATE_NORMAL))
            {
-             gtk_menu_item_deselect (GTK_MENU_ITEM (menu_shell->active_menu_item));
-             menu_shell->active_menu_item = NULL;
+             gtk_menu_shell_deselect (menu_shell);
            }
        }
       else if (menu_shell->parent_menu_shell)
@@ -529,6 +785,13 @@ gtk_menu_shell_leave_notify (GtkWidget        *widget,
   return TRUE;
 }
 
+static void
+gtk_menu_shell_screen_changed (GtkWidget *widget,
+                              GdkScreen *previous_screen)
+{
+  gtk_menu_shell_reset_key_hash (GTK_MENU_SHELL (widget));
+}
+
 static void
 gtk_menu_shell_add (GtkContainer *container,
                    GtkWidget    *widget)
@@ -543,15 +806,19 @@ gtk_menu_shell_remove (GtkContainer *container,
   GtkMenuShell *menu_shell;
   gint was_visible;
   
-  g_return_if_fail (container != NULL);
   g_return_if_fail (GTK_IS_MENU_SHELL (container));
-  g_return_if_fail (widget != NULL);
   g_return_if_fail (GTK_IS_MENU_ITEM (widget));
   
   was_visible = GTK_WIDGET_VISIBLE (widget);
   menu_shell = GTK_MENU_SHELL (container);
   menu_shell->children = g_list_remove (menu_shell->children, widget);
   
+  if (widget == menu_shell->active_menu_item)
+    {
+      gtk_item_deselect (GTK_ITEM (menu_shell->active_menu_item));
+      menu_shell->active_menu_item = NULL;
+    }
+
   gtk_widget_unparent (widget);
   
   /* queue resize regardless of GTK_WIDGET_VISIBLE (container),
@@ -562,15 +829,15 @@ gtk_menu_shell_remove (GtkContainer *container,
 }
 
 static void
-gtk_menu_shell_foreach (GtkContainer *container,
-                       GtkCallback   callback,
-                       gpointer      callback_data)
+gtk_menu_shell_forall (GtkContainer *container,
+                      gboolean      include_internals,
+                      GtkCallback   callback,
+                      gpointer      callback_data)
 {
   GtkMenuShell *menu_shell;
   GtkWidget *child;
   GList *children;
 
-  g_return_if_fail (container != NULL);
   g_return_if_fail (GTK_IS_MENU_SHELL (container));
   g_return_if_fail (callback != NULL);
 
@@ -590,13 +857,11 @@ gtk_menu_shell_foreach (GtkContainer *container,
 static void
 gtk_real_menu_shell_deactivate (GtkMenuShell *menu_shell)
 {
-  g_return_if_fail (menu_shell != NULL);
-  g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
-
   if (menu_shell->active)
     {
       menu_shell->button = 0;
       menu_shell->active = FALSE;
+      menu_shell->activate_time = 0;
 
       if (menu_shell->active_menu_item)
        {
@@ -611,8 +876,11 @@ gtk_real_menu_shell_deactivate (GtkMenuShell *menu_shell)
        }
       if (menu_shell->have_xgrab)
        {
+         GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (menu_shell));
+         
          menu_shell->have_xgrab = FALSE;
-         gdk_pointer_ungrab (GDK_CURRENT_TIME);
+         gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
+         gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
        }
     }
 }
@@ -623,7 +891,6 @@ gtk_menu_shell_is_item (GtkMenuShell *menu_shell,
 {
   GtkWidget *parent;
 
-  g_return_val_if_fail (menu_shell != NULL, FALSE);
   g_return_val_if_fail (GTK_IS_MENU_SHELL (menu_shell), FALSE);
   g_return_val_if_fail (child != NULL, FALSE);
 
@@ -638,7 +905,7 @@ gtk_menu_shell_is_item (GtkMenuShell *menu_shell,
   return FALSE;
 }
 
-static GtkWidget *
+static GtkWidget*
 gtk_menu_shell_get_item (GtkMenuShell *menu_shell,
                         GdkEvent     *event)
 {
@@ -655,3 +922,610 @@ gtk_menu_shell_get_item (GtkMenuShell *menu_shell,
     return NULL;
 }
 
+/* Handlers for action signals */
+
+void
+gtk_menu_shell_select_item (GtkMenuShell *menu_shell,
+                           GtkWidget    *menu_item)
+{
+  GtkMenuShellClass *class;
+
+  g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
+  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
+
+  class = GTK_MENU_SHELL_GET_CLASS (menu_shell);
+
+  if (class->select_item &&
+      !(menu_shell->active &&
+       menu_shell->active_menu_item == menu_item))
+    class->select_item (menu_shell, menu_item);
+}
+
+void _gtk_menu_item_set_placement (GtkMenuItem         *menu_item,
+                                  GtkSubmenuPlacement  placement);
+
+static void
+gtk_menu_shell_real_select_item (GtkMenuShell *menu_shell,
+                                GtkWidget    *menu_item)
+{
+  GtkPackDirection pack_dir = PACK_DIRECTION (menu_shell);
+
+  gtk_menu_shell_deselect (menu_shell);
+
+  if (!_gtk_menu_item_is_selectable (menu_item))
+    return;
+
+  menu_shell->active_menu_item = menu_item;
+  if (pack_dir == GTK_PACK_DIRECTION_TTB || pack_dir == GTK_PACK_DIRECTION_BTT)
+    _gtk_menu_item_set_placement (GTK_MENU_ITEM (menu_shell->active_menu_item),
+                                 GTK_LEFT_RIGHT);
+  else
+    _gtk_menu_item_set_placement (GTK_MENU_ITEM (menu_shell->active_menu_item),
+                                 GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement);
+  gtk_menu_item_select (GTK_MENU_ITEM (menu_shell->active_menu_item));
+
+  /* This allows the bizarre radio buttons-with-submenus-display-history
+   * behavior
+   */
+  if (GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu)
+    gtk_widget_activate (menu_shell->active_menu_item);
+}
+
+void
+gtk_menu_shell_deselect (GtkMenuShell *menu_shell)
+{
+  g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
+
+  if (menu_shell->active_menu_item)
+    {
+      gtk_menu_item_deselect (GTK_MENU_ITEM (menu_shell->active_menu_item));
+      menu_shell->active_menu_item = NULL;
+    }
+}
+
+void
+gtk_menu_shell_activate_item (GtkMenuShell      *menu_shell,
+                             GtkWidget         *menu_item,
+                             gboolean           force_deactivate)
+{
+  GSList *slist, *shells = NULL;
+  gboolean deactivate = force_deactivate;
+
+  g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
+  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
+
+  if (!deactivate)
+    deactivate = GTK_MENU_ITEM_GET_CLASS (menu_item)->hide_on_activate;
+
+  g_object_ref (menu_shell);
+  g_object_ref (menu_item);
+
+  if (deactivate)
+    {
+      GtkMenuShell *parent_menu_shell = menu_shell;
+
+      do
+       {
+         g_object_ref (parent_menu_shell);
+         shells = g_slist_prepend (shells, parent_menu_shell);
+         parent_menu_shell = (GtkMenuShell*) parent_menu_shell->parent_menu_shell;
+       }
+      while (parent_menu_shell);
+      shells = g_slist_reverse (shells);
+
+      gtk_menu_shell_deactivate (menu_shell);
+  
+      /* flush the x-queue, so any grabs are removed and
+       * the menu is actually taken down
+       */
+      gdk_display_sync (gtk_widget_get_display (menu_item));
+    }
+
+  gtk_widget_activate (menu_item);
+
+  for (slist = shells; slist; slist = slist->next)
+    {
+      g_signal_emit (slist->data, menu_shell_signals[SELECTION_DONE], 0);
+      g_object_unref (slist->data);
+    }
+  g_slist_free (shells);
+
+  g_object_unref (menu_shell);
+  g_object_unref (menu_item);
+}
+
+/* Distance should be +/- 1 */
+static void
+gtk_menu_shell_move_selected (GtkMenuShell  *menu_shell, 
+                             gint           distance)
+{
+  if (menu_shell->active_menu_item)
+    {
+      GList *node = g_list_find (menu_shell->children,
+                                menu_shell->active_menu_item);
+      GList *start_node = node;
+      
+      if (distance > 0)
+       {
+         node = node->next;
+         while (node != start_node && 
+                (!node || !_gtk_menu_item_is_selectable (node->data)))
+           {
+             if (!node)
+               node = menu_shell->children;
+             else
+               node = node->next;
+           }
+       }
+      else
+       {
+         node = node->prev;
+         while (node != start_node &&
+                (!node || !_gtk_menu_item_is_selectable (node->data)))
+           {
+             if (!node)
+               node = g_list_last (menu_shell->children);
+             else
+               node = node->prev;
+           }
+       }
+      
+      if (node)
+       gtk_menu_shell_select_item (menu_shell, node->data);
+    }
+}
+
+/**
+ * gtk_menu_shell_select_first:
+ * @menu_shell: a #GtkMenuShell
+ * @search_sensitive: if %TRUE, search for the first selectable
+ *                    menu item, otherwise select nothing if
+ *                    the first item isn't sensitive. This
+ *                    should be %FALSE if the menu is being
+ *                    popped up initially.
+ * 
+ * Select the first visible or selectable child of the menu shell;
+ * don't select tearoff items unless the only item is a tearoff
+ * item.
+ *
+ * Since: 2.2
+ **/
+void
+gtk_menu_shell_select_first (GtkMenuShell *menu_shell,
+                            gboolean      search_sensitive)
+{
+  GtkWidget *to_select = NULL;
+  GList *tmp_list;
+
+  tmp_list = menu_shell->children;
+  while (tmp_list)
+    {
+      GtkWidget *child = tmp_list->data;
+      
+      if ((!search_sensitive && GTK_WIDGET_VISIBLE (child)) ||
+         _gtk_menu_item_is_selectable (child))
+       {
+         to_select = child;
+         if (!GTK_IS_TEAROFF_MENU_ITEM (child))
+           break;
+       }
+      
+      tmp_list = tmp_list->next;
+    }
+
+  if (to_select)
+    gtk_menu_shell_select_item (menu_shell, to_select);
+}
+
+void
+_gtk_menu_shell_select_last (GtkMenuShell *menu_shell,
+                            gboolean      search_sensitive)
+{
+  GtkWidget *to_select = NULL;
+  GList *tmp_list;
+
+  tmp_list = g_list_last (menu_shell->children);
+  while (tmp_list)
+    {
+      GtkWidget *child = tmp_list->data;
+      
+      if ((!search_sensitive && GTK_WIDGET_VISIBLE (child)) ||
+         _gtk_menu_item_is_selectable (child))
+       {
+         to_select = child;
+         if (!GTK_IS_TEAROFF_MENU_ITEM (child))
+           break;
+       }
+      
+      tmp_list = tmp_list->prev;
+    }
+
+  if (to_select)
+    gtk_menu_shell_select_item (menu_shell, to_select);
+}
+
+static gboolean
+gtk_menu_shell_select_submenu_first (GtkMenuShell     *menu_shell)
+{
+  GtkMenuItem *menu_item;
+
+  menu_item = GTK_MENU_ITEM (menu_shell->active_menu_item); 
+  
+  if (menu_item->submenu)
+    {
+      _gtk_menu_item_popup_submenu (GTK_WIDGET (menu_item));
+      gtk_menu_shell_select_first (GTK_MENU_SHELL (menu_item->submenu), TRUE);
+      if (GTK_MENU_SHELL (menu_item->submenu)->active_menu_item)
+       return TRUE;
+    }
+
+  return FALSE;
+}
+
+static void
+gtk_real_menu_shell_move_current (GtkMenuShell      *menu_shell,
+                                 GtkMenuDirectionType direction)
+{
+  GtkMenuShell *parent_menu_shell = NULL;
+  gboolean had_selection;
+
+  had_selection = menu_shell->active_menu_item != NULL;
+
+  if (menu_shell->parent_menu_shell)
+    parent_menu_shell = GTK_MENU_SHELL (menu_shell->parent_menu_shell);
+
+  switch (direction)
+    {
+    case GTK_MENU_DIR_PARENT:
+      if (parent_menu_shell)
+       {
+         if (GTK_MENU_SHELL_GET_CLASS (parent_menu_shell)->submenu_placement == 
+                      GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement)
+           gtk_menu_shell_deselect (menu_shell);
+         else 
+           {
+             if (PACK_DIRECTION (parent_menu_shell) == GTK_PACK_DIRECTION_LTR)
+               gtk_menu_shell_move_selected (parent_menu_shell, -1);
+             else
+               gtk_menu_shell_move_selected (parent_menu_shell, 1);
+             gtk_menu_shell_select_submenu_first (parent_menu_shell); 
+           }
+       }
+      /* If there is no parent and the submenu is in the opposite direction
+       * to the menu, then make the PARENT direction wrap around to
+       * the bottom of the submenu.
+       */
+      else if (menu_shell->active_menu_item &&
+              _gtk_menu_item_is_selectable (menu_shell->active_menu_item) &&
+              GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu)
+       {
+         GtkMenuShell *submenu = GTK_MENU_SHELL (GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu);
+
+         if (GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement !=
+             GTK_MENU_SHELL_GET_CLASS (submenu)->submenu_placement)
+           _gtk_menu_shell_select_last (submenu, TRUE);
+       }
+      break;
+      
+    case GTK_MENU_DIR_CHILD:
+      if (menu_shell->active_menu_item &&
+         _gtk_menu_item_is_selectable (menu_shell->active_menu_item) &&
+         GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu)
+       {
+         if (gtk_menu_shell_select_submenu_first (menu_shell))
+           break;
+       }
+
+      /* Try to find a menu running the opposite direction */
+      while (parent_menu_shell && 
+            (GTK_MENU_SHELL_GET_CLASS (parent_menu_shell)->submenu_placement ==
+             GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement))
+       {
+         GtkWidget *tmp_widget = parent_menu_shell->parent_menu_shell;
+         
+         if (tmp_widget)
+           parent_menu_shell = GTK_MENU_SHELL (tmp_widget);
+         else
+           parent_menu_shell = NULL;
+       }
+      
+      if (parent_menu_shell)
+       {
+         if (PACK_DIRECTION (parent_menu_shell) == GTK_PACK_DIRECTION_LTR)
+           gtk_menu_shell_move_selected (parent_menu_shell, 1);
+         else
+           gtk_menu_shell_move_selected (parent_menu_shell, -1);
+
+         gtk_menu_shell_select_submenu_first (parent_menu_shell);
+       }
+      break;
+      
+    case GTK_MENU_DIR_PREV:
+      gtk_menu_shell_move_selected (menu_shell, -1);
+      if (!had_selection &&
+         !menu_shell->active_menu_item &&
+         menu_shell->children)
+       _gtk_menu_shell_select_last (menu_shell, TRUE);
+      break;
+    case GTK_MENU_DIR_NEXT:
+      gtk_menu_shell_move_selected (menu_shell, 1);
+      if (!had_selection &&
+         !menu_shell->active_menu_item &&
+         menu_shell->children)
+       gtk_menu_shell_select_first (menu_shell, TRUE);
+      break;
+    }
+}
+
+static void
+gtk_real_menu_shell_activate_current (GtkMenuShell      *menu_shell,
+                                     gboolean           force_hide)
+{
+  if (menu_shell->active_menu_item &&
+      _gtk_menu_item_is_selectable (menu_shell->active_menu_item))
+  {
+   
+    if (GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu == NULL)
+      gtk_menu_shell_activate_item (menu_shell,
+                                   menu_shell->active_menu_item,
+                                   force_hide);
+    else
+      _gtk_menu_item_popup_submenu (menu_shell->active_menu_item);
+  }
+}
+
+static void
+gtk_real_menu_shell_cancel (GtkMenuShell      *menu_shell)
+{
+  /* Unset the active menu item so gtk_menu_popdown() doesn't see it.
+   */
+  gtk_menu_shell_deselect (menu_shell);
+  
+  gtk_menu_shell_deactivate (menu_shell);
+  g_signal_emit (menu_shell, menu_shell_signals[SELECTION_DONE], 0);
+}
+
+static void
+gtk_real_menu_shell_cycle_focus (GtkMenuShell      *menu_shell,
+                                GtkDirectionType   dir)
+{
+  while (menu_shell && !GTK_IS_MENU_BAR (menu_shell))
+    {
+      if (menu_shell->parent_menu_shell)
+       menu_shell = GTK_MENU_SHELL (menu_shell->parent_menu_shell);
+      else
+       menu_shell = NULL;
+    }
+
+  if (menu_shell)
+    _gtk_menu_bar_cycle_focus (GTK_MENU_BAR (menu_shell), dir);
+}
+
+gint
+_gtk_menu_shell_get_popup_delay (GtkMenuShell *menu_shell)
+{
+  GtkMenuShellClass *klass = GTK_MENU_SHELL_GET_CLASS (menu_shell);
+  
+  if (klass->get_popup_delay)
+    {
+      return klass->get_popup_delay (menu_shell);
+    }
+  else
+    {
+      gint popup_delay;
+      GtkWidget *widget = GTK_WIDGET (menu_shell);
+      
+      g_object_get (gtk_widget_get_settings (widget),
+                   "gtk-menu-popup-delay", &popup_delay,
+                   NULL);
+      
+      return popup_delay;
+    }
+}
+
+/**
+ * gtk_menu_shell_cancel:
+ * @menu_shell: a #GtkMenuShell
+ * 
+ * Cancels the selection within the menu shell.  
+ * 
+ * Since: 2.4
+ */
+void
+gtk_menu_shell_cancel (GtkMenuShell *menu_shell)
+{
+  g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
+
+  g_signal_emit (menu_shell, menu_shell_signals[CANCEL], 0);
+}
+
+static GtkMnemonicHash *
+gtk_menu_shell_get_mnemonic_hash (GtkMenuShell *menu_shell,
+                                 gboolean      create)
+{
+  GtkMenuShellPrivate *private = GTK_MENU_SHELL_GET_PRIVATE (menu_shell);
+
+  if (!private->mnemonic_hash && create)
+    private->mnemonic_hash = _gtk_mnemonic_hash_new ();
+  
+  return private->mnemonic_hash;
+}
+
+static void
+menu_shell_add_mnemonic_foreach (guint    keyval,
+                                GSList  *targets,
+                                gpointer data)
+{
+  GtkKeyHash *key_hash = data;
+
+  _gtk_key_hash_add_entry (key_hash, keyval, 0, GUINT_TO_POINTER (keyval));
+}
+
+static GtkKeyHash *
+gtk_menu_shell_get_key_hash (GtkMenuShell *menu_shell,
+                            gboolean      create)
+{
+  GtkMenuShellPrivate *private = GTK_MENU_SHELL_GET_PRIVATE (menu_shell);
+  GtkWidget *widget = GTK_WIDGET (menu_shell);
+
+  if (!private->key_hash && create && gtk_widget_has_screen (widget))
+    {
+      GtkMnemonicHash *mnemonic_hash = gtk_menu_shell_get_mnemonic_hash (menu_shell, FALSE);
+      GdkScreen *screen = gtk_widget_get_screen (widget);
+      GdkKeymap *keymap = gdk_keymap_get_for_display (gdk_screen_get_display (screen));
+
+      if (!mnemonic_hash)
+       return NULL;
+      
+      private->key_hash = _gtk_key_hash_new (keymap, NULL);
+
+      _gtk_mnemonic_hash_foreach (mnemonic_hash,
+                                 menu_shell_add_mnemonic_foreach,
+                                 private->key_hash);
+    }
+  
+  return private->key_hash;
+}
+
+static void
+gtk_menu_shell_reset_key_hash (GtkMenuShell *menu_shell)
+{
+  GtkMenuShellPrivate *private = GTK_MENU_SHELL_GET_PRIVATE (menu_shell);
+
+  if (private->key_hash)
+    {
+      _gtk_key_hash_free (private->key_hash);
+      private->key_hash = NULL;
+    }
+}
+
+static gboolean
+gtk_menu_shell_activate_mnemonic (GtkMenuShell *menu_shell,
+                                 GdkEventKey  *event)
+{
+  GtkMnemonicHash *mnemonic_hash;
+  GtkKeyHash *key_hash;
+  GSList *entries;
+  gboolean result = FALSE;
+
+  mnemonic_hash = gtk_menu_shell_get_mnemonic_hash (menu_shell, FALSE);
+  if (!mnemonic_hash)
+    return FALSE;
+
+  key_hash = gtk_menu_shell_get_key_hash (menu_shell, TRUE);
+  if (!key_hash)
+    return FALSE;
+  
+  entries = _gtk_key_hash_lookup (key_hash,
+                                 event->hardware_keycode,
+                                 event->state,
+                                 gtk_accelerator_get_default_mod_mask (),
+                                 event->group);
+
+  if (entries)
+    result = _gtk_mnemonic_hash_activate (mnemonic_hash,
+                                         GPOINTER_TO_UINT (entries->data));
+
+  return result;
+}
+
+void
+_gtk_menu_shell_add_mnemonic (GtkMenuShell *menu_shell,
+                             guint      keyval,
+                             GtkWidget *target)
+{
+  g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
+  g_return_if_fail (GTK_IS_WIDGET (target));
+
+  _gtk_mnemonic_hash_add (gtk_menu_shell_get_mnemonic_hash (menu_shell, TRUE),
+                         keyval, target);
+  gtk_menu_shell_reset_key_hash (menu_shell);
+}
+
+void
+_gtk_menu_shell_remove_mnemonic (GtkMenuShell *menu_shell,
+                                guint      keyval,
+                                GtkWidget *target)
+{
+  g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
+  g_return_if_fail (GTK_IS_WIDGET (target));
+  
+  _gtk_mnemonic_hash_remove (gtk_menu_shell_get_mnemonic_hash (menu_shell, TRUE),
+                            keyval, target);
+  gtk_menu_shell_reset_key_hash (menu_shell);
+}
+
+/**
+ * gtk_menu_shell_get_take_focus:
+ * @menu_shell: a #GtkMenuShell
+ *
+ * Returns %TRUE if the menu shell will take the keyboard focus on popup.
+ *
+ * Returns: %TRUE if the menu shell will take the keyboard focus on popup.
+ *
+ * Since: 2.8
+ **/
+gboolean
+gtk_menu_shell_get_take_focus (GtkMenuShell *menu_shell)
+{
+  GtkMenuShellPrivate *priv;
+
+  g_return_val_if_fail (GTK_IS_MENU_SHELL (menu_shell), FALSE);
+
+  priv = GTK_MENU_SHELL_GET_PRIVATE (menu_shell);
+
+  return priv->take_focus;
+}
+
+/**
+ * gtk_menu_shell_set_take_focus:
+ * @menu_shell: a #GtkMenuShell
+ * @take_focus: %TRUE if the menu shell should take the keyboard focus on popup.
+ *
+ * If @take_focus is %TRUE (the default) the menu shell will take the keyboard 
+ * focus so that it will receive all keyboard events which is needed to enable
+ * keyboard navigation in menus.
+ *
+ * Setting @take_focus to %FALSE is useful only for special applications
+ * like virtual keyboard implementations which should not take keyboard
+ * focus.
+ *
+ * The @take_focus state of a menu or menu bar is automatically propagated
+ * to submenus whenever a submenu is popped up, so you don't have to worry
+ * about recursively setting it for your entire menu hierarchy. Only when
+ * programmatically picking a submenu and popping it up manually, the
+ * @take_focus property of the submenu needs to be set explicitely.
+ *
+ * Note that setting it to %FALSE has side-effects:
+ *
+ * If the focus is in some other app, it keeps the focus and keynav in
+ * the menu doesn't work. Consequently, keynav on the menu will only
+ * work if the focus is on some toplevel owned by the onscreen keyboard.
+ *
+ * To avoid confusing the user, menus with @take_focus set to %FALSE
+ * should not display mnemonics or accelerators, since it cannot be
+ * guaranteed that they will work.
+ *
+ * See also gdk_keyboard_grab()
+ *
+ * Since: 2.8
+ **/
+void
+gtk_menu_shell_set_take_focus (GtkMenuShell *menu_shell,
+                               gboolean      take_focus)
+{
+  GtkMenuShellPrivate *priv;
+
+  g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
+
+  priv = GTK_MENU_SHELL_GET_PRIVATE (menu_shell);
+
+  if (priv->take_focus != take_focus)
+    {
+      priv->take_focus = take_focus;
+      g_object_notify (G_OBJECT (menu_shell), "take-focus");
+    }
+}
+
+#define __GTK_MENU_SHELL_C__
+#include "gtkaliasdef.c"