Add GtkActionClass::get_submenu() vfunc: actions providing a menu item or

Add GtkActionClass::get_submenu() vfunc: actions providing a menu item or

2007-03-15  Emmanuele Bassi  <ebassi@gnome.org>

	* gtk/gtkaction.[ch]: Add GtkActionClass::get_submenu() vfunc:
	actions providing a menu item or a menu tool button with already
	a submenu should return the GtkMenu widget.

	* gtk/gtkuimanager.c (update_node): If an action provides its
	own submenu, use it instead of adding an empty one

	* gtk/gtkrecentaction.[ch]: Add GtkRecentAction, an action
	implementing the GtkRecentChooser interface for displaying the
	list of recently used files into menus and toolbars generated
	using GtkUIManager. (#338843)

	* gtk/Makefile.am:
	* gtk/gtk.h:
	* gtk/gtk.symbols: Add GtkRecentAction API to the build.

	* tests/testactions.c: Exercise the GtkRecentAction API.

svn path=/trunk/; revision=17524