[whatwg] WebForms2 validity

Ian Hickson ian at hixie.ch
Tue Oct 28 13:09:22 PDT 2008

On Fri, 9 Feb 2007, Sean Hogan wrote:
> I might be missing something obvious, but...
> When are ValidityState properties updated? And when are CSS pseudo-classes
> (:valid, :invalid, :in-range, :out-of-range) updated? 

Continually (in particular whenever the constraints or the values change 
-- the validity states are defined in terms of those values).

> Many textual input form-controls would begin in one or another invalid 
> state (valueMissing, patternMismatch) however authors would typically 
> want CSS validity styles to apply only after checkValidity() - either a 
> manual one or the automatic one performed by form-submission.


Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'

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