API: accessible: Add widget_set and widget_unset vfuncs

I expect them to be used a lot, so this approach seems better than
requiring signals that connect to "notify::widget". Also, we can't use
regular functions (like dispose or constructed), becaiuse those assume
that (un)setting of the widget only happens once and with the current
design (a puble set_widget() function) we can't really guarantee that.

Also, I split them into two separate functions as one function is part
of construction and the other part of destruction of the object. And it
doesn't sound like a good idea to have that both be part of one
function.

1 files changed, 2 insertions, 2 deletions

diff --git a/gtk/gtkaccessible.h b/gtk/gtkaccessible.h
index 04d213a3a3..296186ca2b 100644
--- a/gtk/gtkaccessible.h
+++ b/gtk/gtkaccessible.h
@@ -54,9 +54,9 @@ struct _GtkAccessibleClass
 
   void (*connect_widget_destroyed) (GtkAccessible *accessible);
 
+  void (*widget_set)               (GtkAccessible *accessible);
+  void (*widget_unset)             (GtkAccessible *accessible);
   /* Padding for future expansion */
-  void (*_gtk_reserved1) (void);
-  void (*_gtk_reserved2) (void);
   void (*_gtk_reserved3) (void);
   void (*_gtk_reserved4) (void);
 };