readonly on trigger, etc.

I have an action item to respond to this email: 
http://lists.w3.org/Archives/Public/www-forms/2007Feb/0055.html


The minutes of the discussion about this email are just above here: 
http://lists.w3.org/Archives/Member/w3c-forms/2007JanMar/att-0219/20070321-3.html#ACTION3

The minutes incorrectly attribute to me the statement that I assume that a 
readonly trigger cannot be activated because it's greyed out.  Erik said 
it's greyed out and I disagreed.  The decision to disable a control or to 
hide it are the typical outcomes of CSS styling for relevance, not 
readonly.  I assumed a readonly trigger cannot be activated because 
activation is the logical analog of providing input to a trigger. 

It's unclear whether my assumption is correct or not.  Can you activate a 
readonly trigger?

And the bigger question is: does the readonly MIP even apply to trigger?

Does the trigger receive valid/invalid events based on things like 
constraints that might beattached to the node referenced by the single 
node binding of the trigger?

John M. Boyer, Ph.D.
STSM: Lotus Forms Architect and Researcher
Chair, W3C Forms Working Group
Workplace, Portal and Collaboration Software
IBM Victoria Software Lab
E-Mail: boyerj@ca.ibm.com 

Blog: http://www.ibm.com/developerworks/blogs/page/JohnBoyer