[webkit-dev] CSS properties vs. their JS bindings on the style object

[tomz at codeaurora.org]

Sorry, I posted the wrong Microsoft link.  Here's the one I meant ...

http://msdn.microsoft.com/en-us/library/ie/ms537842%28v=vs.85%29.aspx

--Tom

> Yeah, but how many people really use this "Trident" thing  ;)
>
> Seriously, I'm not sure how to proceed on this.  It does seem to be
> outside the spec.  Humorously, even Microsoft's has references that imply
> that the script binding is named differently from the CSS attribute.
>
> http://msdn.microsoft.com/en-us/library/ie/ms530759%28v=vs.85%29.aspx
>
> It seems wrong to support methods that are redundant, won't reliably work
> on other browsers, and also aren't part of the supported specification.
>
> By the way, could someone confirm whether or not
> http://www.w3.org/TR/DOM-Level-2-Style/css is the right reference to be
> citing?
>
> Thanks for any guidance,
> --Tom
>
>> See also this thread:
>> <http://lists.w3.org/Archives/Public/www-style/2012Feb/0655.html>
>>
>> Apparently this pattern works in Trident.
>>
>> Simon
>>
>> On Feb 28, 2012, at 5:14 PM, Simon Fraser wrote:
>>
>>> Yes, of which there is plenty.
>>>
>>> Simon
>>>
>>> On Feb 28, 2012, at 5:10 PM, Eric Seidel wrote:
>>>
>>>> It would have to be WebKit-only content, correct?
>>>>
>>>> On Tue, Feb 28, 2012 at 5:04 PM, Simon Fraser <simon.fraser at apple.com>
>>>> wrote:
>>>> On Feb 28, 2012, at 5:00 PM, Tom Zakrajsek wrote:
>>>>
>>>>> While investigating https://bugs.webkit.org/show_bug.cgi?id=77427,
>>>>> Dave and I have been trekking through the bindings code.
>>>>>
>>>>> Multiword CSS property names are hyphen-delimited and lower-case,
>>>>> while the equivalent JS binding names are camel-case.  In the
>>>>> implementation, our binding code is actually adding both forms.
>>>>>
>>>>> document.body.style["fontSize"] works, but so does
>>>>> document.body.style["font-size"]
>>>>>
>>>>> The presence of the ["font-size"] form in the bindings was called out
>>>>> as erroneous (not mentioned in the spec).  It's also not recognized
>>>>> by
>>>>> FF or Opera.  Is there any backwards compatibility issue we might not
>>>>> be aware of for why the style object has both bindings in WebKit?
>>>>> Example
>>>>>
>>>>> CSS	{ font-size : sSize }
>>>>> Scripting           	[ sSize = ] object.style.fontSize
>>>>> Thanks,
>>>>> --Tom
>>>>
>>>> I would expect that changing this is pretty likely to break content in
>>>> the wild.
>>>>
>>>> Simon
>>>
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