[whatwg] Form validation against invisible controls

[Garrett Smith]

On 6/3/10, TAMURA, Kent <tkent at chromium.org> wrote:
> Oh, I'm sorry.  I have found a sentence about visibility in the draft.
>

Where?

> http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#constraint-validation
>> If one of the controls is not being
>> rendered<rendering.html#being-rendered>
>   (e.g. it has the hidden <editing.html#the-hidden-attribute> attribute set)
> then user agents may report a script error.
>

That's about <input type="hidden">

> This sentence is about process against controls of which validation result
> is invalid.
> I think UA doesn't need to validate such controls.
>

You lost me on that one.

>
> The Chrome bug report is here:
> http://code.google.com/p/chromium/issues/detail?id=45640
>

That bug is describing an error when validating a control that cannot
have focus. That's more specific from a control that is not visible.

Is the issue in defining what is and what isn't focusable?

> 2010/6/4 TAMURA, Kent <tkent at chromium.org>
>
>> > An element is a "candidate for constraint validation" if
>>> > 1. it is a validatable type,
>>> >    e.g. true if <input type=number>, false if <input type=reset>
>>> > 2. has no "disabled" attribute,
>>> > 3. has no "readonly" attribute,
>>> > 4. inside of a <form> element,
>>> > 5. has non-empty "name" attribute, and
>>> > 6. not inside of a <datalist> element.
>>> >
>>> > I hope ValidityState and the pseudo classes ignores 2-6.
>
>>> The pseudo-classes do not ignore 2, 3, and 6. (4 and 5 are now removed.)
>
>
>> I'd like to propose to add another condition:
>>   7. it is visible (computed 'display' property of CSS isn't 'none' and no
>> 'hidden' content attribute)
>
>> I couldn't find exceptional rules for validating invisible controls in the
>> current draft.
>> Chrome 5 was released with a part of interactive validation, and we
>> received a bug report about validation against invisible form controls.
>
>> --
>> TAMURA Kent
>> Software Engineer, Google
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> --
> TAMURA Kent
> Software Engineer, Google
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