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Re: [cssom][dom-level-2-style] Status of CSSValue and other DOM-L2-Style interfaces obsoleted on www-style

From: Anne van Kesteren <annevk@opera.com>
Date: Mon, 12 Oct 2009 11:35:20 +0200
To: "Garrett Smith" <dhtmlkitchen@gmail.com>
Cc: "Sylvain Galineau" <sylvaing@microsoft.com>, "www-style@w3.org" <www-style@w3.org>, "bert@w3.org" <bert@w3.org>, "Sam Fortiner" <samfort@microsoft.com>, "Travis Leithead" <travil@microsoft.com>
Message-ID: <op.u1okw6ry64w2qv@annevk-t60>
On Sat, 10 Oct 2009 00:38:31 +0200, Garrett Smith <dhtmlkitchen@gmail.com>  
> On Thu, Oct 8, 2009 at 1:59 AM, Anne van Kesteren <annevk@opera.com>  
> wrote:
>>  ele.style.width.px += 2
> How does that work?
> Are [you] proposing a special string value?

That was the initial idea, yes. It's probably too hard and hacky to do it  
in practice.

>> or some such. (We might need to use a different object than style since
>> making something both an object and DOMString for backwards  
>> compatibility is asking for trouble I suppose.)
> The need to use a different object has not been provided for. I
> understand that it is an alternative to avoid (incongruous,
> disastrous) hacks necessary to fulfill the proposal for style.width.px
> += 2.
> The proposal does not state a need, does not address issue of units,
> percentage, auto, etc.

The returned object would have other members than just px.

> Did you get a chance to see the el.style.getValueAs() proposal?
> http://lists.w3.org/Archives/Public/www-style/2009Sep/0208.html

I'm not really a big fan of that given that the second argument depends on  
the first. It also does not allow for modification, just reading. E.g. if  
we want to provide a better runtimeStyle API this would not fit.

Anne van Kesteren
Received on Monday, 12 October 2009 09:35:56 UTC

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