W3C home > Mailing lists > Public > public-html-a11y@w3.org > October 2014

Re: Moving forward on "HTML5: Techniques for providing useful text alternatives"

From: Janina Sajka <janina@rednote.net>
Date: Mon, 13 Oct 2014 17:50:44 -0400
To: Steve Faulkner <faulkner.steve@gmail.com>
Cc: HTML Accessibility Task Force <public-html-a11y@w3.org>, David Singer <singer@apple.com>, John Foliot <john@foliot.ca>, "public-html-admin@w3.org" <public-html-admin@w3.org>
Message-ID: <20141013215044.GF1297@opera.rednote.net>
Whether or not it's the only, it's sufficient to raise the question. If
the support you allege is insufficient for PR, I don't see as we can
accept it in this doc as a "best" practice.

Steven Faulkner writes:
> On 13 October 2014 21:40, Janina Sajka <janina@rednote.net> wrote:
> > There's a fundamental flaw between the stated intent of this document
> > and the approaches it discusses and recommends.
> >
> Assuming you are referring to the following:
> "For any of the examples in this section the details and summary elements
> > could be used so that the text descriptions for the images are only
> > displayed on demand:"
> which is accompanied by the following warning:
> The details and summary elements are not well supported by browsers, until
> > such times they are supported, if used, you will need to use scripting to
> > provide the functionality. There are a number of scripted polyfills
> > available and also scripted custom controls are available, in popular
> > JavaScript UI widget libraries, which provide similar functionality.
> source:
> http://w3c.github.io/alt-techniques/#graphical-representations-charts-diagrams-graphs-maps-illustrations
> I do not see how this advice is fundamentally flawed, and it is similar in
> content to what I would have suggested for longdesc advice i.e. yes this
> feature can be used but be warned you will have to do some extra work to
> ensure the feature is practically usable as its support across is uneven.
> If this is the only example of what you consider a 'fundamental flaw' in
> the advice in the doc?
> --
> Regards
> SteveF
> HTML 5.1 <http://www.w3.org/html/wg/drafts/html/master/>


Janina Sajka,	Phone:	+1.443.300.2200
		Email:	janina@rednote.net

Linux Foundation Fellow
Executive Chair, Accessibility Workgroup:	http://a11y.org

The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)
Chair,	Protocols & Formats	http://www.w3.org/wai/pf
	Indie UI			http://www.w3.org/WAI/IndieUI/
Received on Monday, 13 October 2014 21:51:12 UTC

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