[gtk+/gtk-2-24] Signalify (already existing) GtkMenuShell.insert()

[Matthias Clasen <matthiasc src gnome org>]

commit 5ada51d3c7d3b476d954c4fdddb4895c3de00220
Author: William Hua <william attente ca>
Date:   Mon Jan 28 17:21:31 2013 -0500

    Signalify (already existing) GtkMenuShell.insert()
    
    gtk_menu_shell_insert() is a virtual function that was being directly
    invoked from the class vtable.
    
    Turn it into a proper signal and emit it in the usual way.
    
    See https://bugzilla.gnome.org/show_bug.cgi?id=656565.
    
    This is a backport of Ryan Lortie's commit
    05aeaeef9ea41282a8859cbff2116d3fba5d31ea from the GTK+ 3 branch.

 gtk/gtkmenushell.c |   32 ++++++++++++++++++++++++++------
 1 files changed, 26 insertions(+), 6 deletions(-)
---
diff --git a/gtk/gtkmenushell.c b/gtk/gtkmenushell.c
index c3e107f..a7ad7b5 100644
--- a/gtk/gtkmenushell.c
+++ b/gtk/gtkmenushell.c
@@ -59,6 +59,7 @@ enum {
   CANCEL,
   CYCLE_FOCUS,
   MOVE_SELECTED,
+  INSERT,
   LAST_SIGNAL
 };
 
@@ -326,6 +327,30 @@ gtk_menu_shell_class_init (GtkMenuShellClass *klass)
 		  G_TYPE_BOOLEAN, 1,
 		  G_TYPE_INT);
 
+  /**
+   * GtkMenuShell::insert:
+   * @menu_shell: the object on which the signal is emitted
+   * @child: the #GtkMenuItem that is being inserted
+   * @position: the position at which the insert occurs
+   *
+   * The ::insert signal is emitted when a new #GtkMenuItem is added to
+   * a #GtkMenuShell.  A separate signal is used instead of
+   * GtkContainer::add because of the need for an additional position
+   * parameter.
+   *
+   * The inverse of this signal is the GtkContainer::remove signal.
+   *
+   * Since: 2.24.15
+   **/
+  menu_shell_signals[INSERT] =
+    g_signal_new (I_("insert"),
+                  G_OBJECT_CLASS_TYPE (object_class),
+                  G_SIGNAL_RUN_FIRST,
+                  G_STRUCT_OFFSET (GtkMenuShellClass, insert),
+                  NULL, NULL,
+                  _gtk_marshal_VOID__OBJECT_INT,
+                  G_TYPE_NONE, 2, GTK_TYPE_WIDGET, G_TYPE_INT);
+
   binding_set = gtk_binding_set_by_class (klass);
   gtk_binding_entry_add_signal (binding_set,
 				GDK_Escape, 0,
@@ -482,15 +507,10 @@ gtk_menu_shell_insert (GtkMenuShell *menu_shell,
 		       GtkWidget    *child,
 		       gint          position)
 {
-  GtkMenuShellClass *class;
-
   g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
   g_return_if_fail (GTK_IS_MENU_ITEM (child));
 
-  class = GTK_MENU_SHELL_GET_CLASS (menu_shell);
-
-  if (class->insert)
-    class->insert (menu_shell, child, position);
+  g_signal_emit (menu_shell, menu_shell_signals[INSERT], 0, child, position);
 }
 
 static void