Anybody using the pre/post submit callbacks?

[James W. W. <ja...@fr...>]

A while back I added a callback mechanism specified via custom elements:

kQ3CallbackElementTypeBeforeRender
kQ3CallbackElementTypeAfterRender
kQ3CallbackElementTypeBeforePick
kQ3CallbackElementTypeAfterPick

I just realized that we could take a different approach which would 
be more powerful and have less overhead.  One could create a custom 
subclass of the View class, and override appropriate methods such as 
submit-retained-for-rendering.  To make this possible, I would need 
to make a couple of simple changes in E3View.c, and define some 
method type constants in some public header.

One nice thing about the approach I am suggesting is that you 
wouldn't need separate before and after functions.  You could just do 
some stuff before, call through to the standard method, and then do 
some more stuff.   Furthermore, your method could actually submit a 
different object than was passed to you, which is not possible with 
the current callbacks.
-- 
   James W. Walker, ScriptPerfection Enterprises, Inc.
   <http://www.write-brain.com/>