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Re: function and impacts (was: @scope and @headers reform)

From: Leif Halvard Silli <lhs@malform.no>
Date: Wed, 24 Sep 2008 00:01:48 +0200
Message-ID: <48D9674C.4070304@malform.no>
To: James Craig <jcraig@apple.com>
CC: Gez Lemon <gez.lemon@gmail.com>, Al Gilman <alfred.s.gilman@ieee.org>, Chris Wilson <Chris.Wilson@microsoft.com>, W3C WAI-XTECH <wai-xtech@w3.org>, public-html@w3.org

James Craig 2008-09-23 22.46:

> Gez Lemon wrote:
>> James Craig wrote:


>> If HTML5 allows
>> aria-labelledby on table cells, I would be in favour of dropping the
>> headers attribute completely, as it can't be used practically, and use
>> aria-labelledby for complex associations instead.
> 
> Part of the intention of ARIA is to be replaced by host-language 
> functionality once the @aria-* attributes are no longer necessary.

    [...]

> @headers may end up being the native host language equivalent for 
> @aria-labelledby in some cases, but it would be better to have a more 
> general global equivalent attribute that allows a list of IDREFs to 
> label an arbitrary element.


Good thought.

(1) The idea you express here seems more compatible with a model 
where we only operate with @headers and a @headers incorporating 
heading algorithm, than it is with a table model based on @scope 
and a @scope based algorithm.

(2) @headers should be generic enough. One could use @headers 
instead of @aria-labelledby in HTML 5, in <table>s and outside. A 
@headers could have a local scope, by default, meaning that 
@headers, by default, could be used in <table>s the same was it 
can be used in HTML 5.  A certain keyword or extension of the 
attribute could make @headers global. For example 
headers-global="id1 id2". A similar model, local by default, 
global by extension, could be used in other contexts of HTML 5 as 
well.
-- 
leif halvard silli
Received on Tuesday, 23 September 2008 22:02:35 UTC

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