CForms: widget states added

[Sylvain Wallez <sy...@apache.org>]

Hi all,

I finally added widget states to CForms. All widgets can have a "state" 
attribute withe the values "active" (the default), "disabled" or 
"invisible", which are defined in a new WidgetState class.

In disable state, values are displayed, but are not read from the 
request. In invisible state, nothing is displayed (not even labels) and 
values are of course not read from the request. The stylesheets have 
been updated so that disabled widgets are displayed using disabled html 
inputs (eh!).

Tim, this new widget state feature conflicts with your 
"getProcessingRequests()" stuff in 2.2, and I think your "swan" 
experiment could be updated to use widget states.

Sylvain

-- 
Sylvain Wallez                                  Anyware Technologies
http://www.apache.org/~sylvain           http://www.anyware-tech.com
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