W3C home > Mailing lists > Public > public-html@w3.org > February 2013

Re: using the data* attribute to identify element sub roles

From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
Date: Mon, 18 Feb 2013 19:26:06 +1100
Message-ID: <CAHp8n2mha=pG6q6ZdbAitbM74NGBmo-qU6uJrNY=hx3ikEPbRg@mail.gmail.com>
To: Steve Faulkner <faulkner.steve@gmail.com>
Cc: Anselm Hannemann <info@anselm-hannemann.com>, public-html@w3.org
@data-xxx attributes are for authors only. We don't do anything in browsers
with them and therefore will not standardise any @data-xxx attributes in
the HTML spec (see the Extensibility section):

"Authors can include data for inline client-side scripts or server-side
site-wide scripts to process using the
data-*=""<http://www.w3.org/TR/html5/single-page.html#attr-data-*>
 attributes. These are guaranteed to never be touched by browsers, and
allow scripts to include data on HTML elements that scripts can then look
for and process."

It's the safe way for Web developers to use custom attributes so, when you
implement a WebSite you're free to do whatever you want with them.

Cheers,
Silvia.

On Mon, Feb 18, 2013 at 7:12 PM, Steve Faulkner <faulkner.steve@gmail.com>wrote:

> Hi Ansel,
>
> use cases, yes.
>
> the use cases I had in mind is that currently the definitions of some
> elements have differing uses:
>
> article can idenity a 1000 word essay, a 100 word summary of said essay
> and a 5 word comment on the same essay, but there is no method defined to
> idenitfy the different uses. If there was a defined method, a range of
> software could make use of it such as search engines and assistive
> technology.
>
>
> regards
> Stevef
>
>
> On 18 February 2013 07:59, Anselm Hannemann <info@anselm-hannemann.com>wrote:
>
>> From: Steve Faulkner <faulkner.steve@gmail.com>
>> Date: Mon, 18 Feb 2013 07:26:52 +0000
>> Message-ID: <
>> CA+ri+Vn+zcfZT5BP2w3x4WNwu2o2h9GvyPff0znDPVzqaxJYvg@mail.gmail.com>
>> To: HTMLWG WG <public-html@w3.org>
>> NOTE: this is just a wild idea.
>>
>> allow the data attribute [1] to be used to identify element sub roles:
>>
>> examples:
>>
>> <h1>heading</h1> <p data-p="subheading">subheading</p>
>>
>> <article data-article="comment"> blog post comment </article>
>>
>> allow data-elementname="subRole" pairs to be added to a public registry.
>>
>> thoughts?
>>
>> I don't understand the logic of the data-attribute yet. Shouldn't there
>> be a reference to which the attribute refers?
>> In that case to the h1-element. That means, for me it would be logical to
>> have:
>>
>> <h1>heading</h1> <p data-h1="subheading">subheading</p>
>>
>> But then the semantics is away for the element attribute itself.
>> I think I have a lack on use-cases here to can think of if this
>> could work and is useful.
>>
>> / Anselm
>> -----------
>> Anselm Hannemann
>> @helloanselm
>>
>> [1]
>> http://www.w3.org/html/wg/drafts/html/master/dom.html#embedding-custom-non-visible-data-with-the-data-*-attributes
>>
>> -- with regards
>>
>> Steve Faulkner
>>
>>
>
> <http://www.paciellogroup.com/resources/wat-ie-about.html>
>
Received on Monday, 18 February 2013 08:26:54 UTC

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