- From: Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>
- Date: Thu, 28 Nov 2013 13:59:30 +0100
- To: Steve Faulkner <faulkner.steve@gmail.com>
- Cc: "Schnabel, Stefan" <stefan.schnabel@sap.com>, Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>, Michael Cooper <cooper@w3.org>, David MacDonald <david100@sympatico.ca>, Janina Sajka <janina@rednote.net>, HTML Accessibility Task Force <public-html-a11y@w3.org>, WCAG WG <w3c-wai-gl@w3.org>, "public-comments-wcag20@w3.org" <public-comments-wcag20@w3.org>, Gregg Vanderheiden <gv@trace.wisc.edu>, "kirsten@can-adapt.com" <kirsten@can-adapt.com>
Steve Faulkner, Thu, 28 Nov 2013 12:51:05 +0000: > Hi stefan, issue with this is > > SR output: graphic Giraffe grazing on tree branches ... Giraffe grazing on > tree branches Stefan has a point. But perhaps your comment in reality shows that Stefan’s example needs an *empty* alt? <img src="../images/giraffe.jpg" aria-labelledby="123" alt="" /> <p id="123">Giraffe grazing on tree branches</p> Leif H > SteveF > HTML 5.1 <http://www.w3.org/html/wg/drafts/html/master/> > > > On 28 November 2013 12:48, Schnabel, Stefan <stefan.schnabel@sap.com> wrote: > >>>> So, to replace @alt with an @aria-* attribute, would be to do the >> opposite of what the WCAG Robustness principle requires >> >> No. >> >> <img src="../images/giraffe.jpg" aria-labelledby="123"/> >> <p id="123">Giraffe grazing on tree branches</p> >> >> is equivalent since even if the image is missing the text describing the >> image is still there. >> >> - Stefan >> >> >> -----Original Message----- >> From: Leif Halvard Silli [mailto:xn--mlform-iua@målform.no] >> Sent: Donnerstag, 28. November 2013 13:31 >> To: Steve Faulkner >> Cc: Schnabel, Stefan; Michael Cooper; David MacDonald; Janina Sajka; HTML >> Accessibility Task Force; WCAG WG; public-comments-wcag20@w3.org; Gregg >> Vanderheiden; kirsten@can-adapt.com >> Subject: Re: Clarification of WCAG intent and meaning of techniques [Re: >> WCAG considering amending F65 to NOT fail missing ALT text if title or >> aria-label is present] >> >> Steve Faulkner, Thu, 28 Nov 2013 10:24:29 +0000: >>> Hi Stefan, this only works for criteria that are solely contingent upon >>> accessibility APIs exposing information to AT. >>> >>> For the case of alt it has not been agreed that this is the case. >>> >>> Ramon, for example brought up the case of a low vision user who turns off >>> images in the browser because the information in the images is difficult >> to >>> perceive, but the alt text exposed as text by the browser is not. This >>> involves no AT. >>> >>> In this case what is required for all of the suggested alternatives >>> aria-label etc is that they are displayed in place of an image when an >>> image is not displayed. This is currently not the case. If we can >> interest >>> browser implementers exposing aria-label as text in this case then we >> have >>> a practical alternative to alt. >> >> So, to replace @alt with an @aria-* attribute, would be to do the >> opposite of what the WCAG Robustness principle requires: >> http://www.w3.org/TR/WCAG20/#robust >> >> Leif H Silli >> >>
Received on Thursday, 28 November 2013 13:00:10 UTC