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Re: example spec text for longdesc

From: Laura Carlson <laura.lee.carlson@gmail.com>
Date: Mon, 21 Mar 2011 06:55:17 -0500
Message-ID: <AANLkTinYJH-P7zWjK9f74fzNn_xZ1AOMCkst_OTE-PS9@mail.gmail.com>
To: Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>
Cc: Steve Faulkner <faulkner.steve@gmail.com>, HTML Accessibility Task Force <public-html-a11y@w3.org>, HTMLWG WG <public-html@w3.org>
Hi Leif,

Thanks for checking this.

> +1 Super! (Typo: You had 'discription' 2 places in the text.)

Fixed. Thanks.

> Maybe this phrase, which Steve also had, needs thinking:
> ]]  and the value of the alt attribute and the content referenced by
> the longdesc attribute is the img element's fallback content [[
> May be it is the longdesc *URL* that should be described as fallback,
> together with @alt? After all: we have several times made the point
> that the @longdesc text is optional, the user must *choose* to follow
> the longdesc link in order to get it. (This in contrast to
> aria-describedby/aria-labelledby and in contrast to @alt too. [And, for
> all I know, in contrast to the discussed aria-describedAT too.]) It is
> also congruent with how, for instance <video> may contain a link to a
> codec or direct download of the video in its fallback.
> Bringing in the phrase 'textual substitute' as description of @alt
> somewhere, would also be good (Vlad Alexander's proposal). Thus, for
> instance the following reformulation of the above quote:
> ]]  and the value of the alt attribute is the img element's textual
> substitute which, together with the URL of the longdesc attribute, is
> the img element's fallback content [[

That part of the spec text is somewhat dependent on the outcome of alt
ISSUE-31 question two [1]. For the time being, I made a note to that
effect in the sample spec text [2]. It can be adjusted after ISSUE-31
is decided. longdesc needs to be inserted but just how is affected by
the spec text for alt.

Best Regards,

[1] http://www.w3.org/html/wg/wiki/ChangeProposals/ImgElementSurveyConformaceChoices#2._.3CImg.3E_Definition_Question:_.22What_verbiage_should_HTML5_use_for_the_first_two_paragraphs_of_the_img_element_definition.3F.22
[2] http://www.d.umn.edu/~lcarlson/research/ld-spec-text.html

Laura L. Carlson
Received on Monday, 21 March 2011 11:57:22 UTC

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