- From: Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>
- Date: Thu, 28 Nov 2013 14:03:00 +0100
- To: Steve Faulkner <faulkner.steve@gmail.com>
- Cc: "Schnabel, Stefan" <stefan.schnabel@sap.com>, 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>
Leif Halvard Silli, Thu, 28 Nov 2013 13:59:30 +0100: > 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> Hm. Forget it. Wouldn't change anything. But an aria-hidden="true" would help: <img src="../images/giraffe.jpg" aria-labelledby="123" /> <p aria-hidden="true" id="123">Giraffe grazing on tree branches</p> Leif H Silli >> 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 13:03:29 UTC