[Webkit-unassigned] [Bug 58837] Fieldset disabled attribute does not work

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=58837





--- Comment #26 from Naoki Takano <takano.naoki at gmail.com>  2011-05-03 12:45:48 PST ---
Darin,

Thank you for your comment.

Now I start implementation according to your suggestion.

I let you know once I;m done.

Thanks,

(In reply to comment #25)
> I may have been wrong about style recalculation. I didn’t realize that a change to the enabled state of any element in a document causes the entire element’s style to be recalculated.
> 
> As far as performance is concerned, I am indeed concerned that keeping this up to date when manipulating the DOM could be expensive. But I believe this is true of any design. If we cache a pointer to a fieldset in a form element, that cache needs to be invalidated when DOM mutation occurs.
> 
> I’m sorry I can’t give more precise direction than that. There’s nothing fundamentally wrong with putting a fieldset pointer in the rare data of every form element if that really is what it takes to implement this feature.

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