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Re: Behavior Attachment Redux, was Re: HTML element content models vs. components

From: Charles Pritchard <chuck@jumis.com>
Date: Mon, 10 Oct 2011 17:07:56 -0700
Message-ID: <4E9388DC.9020806@jumis.com>
To: Erik Arvidsson <arv@chromium.org>
CC: Ian Hickson <ian@hixie.ch>, Roland Steiner <rolandsteiner@google.com>, Boris Zbarsky <bzbarsky@mit.edu>, public-webapps@w3.org, Dominic Cooney <dominicc@google.com>, Brian Kardell <bkardell@gmail.com>, "Tab Atkins Jr." <jackalmage@gmail.com>, Edward O'Connor <eoconnor@apple.com>
On 10/10/2011 4:55 PM, Erik Arvidsson wrote:
> Splitting this up into two different things is great.
> Allowing attaching an alternative shadow tree through CSS but
> disabling any JS to be run seems like the right thing to do.
> I'm also in favor of the "is" attribute. Even though I think that
> <x-foo>  is more readable than<div is="foo">  it is hard to argue about
> the issues regarding parsing and fallback behavior. The "is" attribute
> also provides a better behavior for common cases such as when you want
> to extend<select>  and<button>.
> erik

This seems to be the same tact that ARIA 1.0 went with to describe new 

I'd like to know what your definition of the word "is" is.

Will I be writing the following:
<div is="button" role="button">

Will it be shorter:
<div is="button">

If it's shorter, it seems my shadow tree should have role="button" on 
the appropriate element.

Is that conducive to your definition of "is"?

As far as I can tell, the "is" operates well with ARIA; if the author 
has their own roles, they can specify them within the shadow dom, 
otherwise, the role is borrowed from the element.

If "is" is adopted, it seems relevant to include a specific mapping 
between "is" and "role" for ARIA consumers.

I'd like to see "is" as an attribute that applies to other families 
supported by HTML5: SVG may benefit.

That is, it may be a deserving first-class attribute. It seems to 
signify that the shadow dom is supported, just as role signifies that 
ARIA is supported, and "id" works with the ever-handy DOM getElementById.

Received on Tuesday, 11 October 2011 00:08:27 UTC

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