- From: Dave Singer <singer@apple.com>
- Date: Wed, 21 Mar 2012 20:30:21 -0700
- To: Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>
- Cc: John Foliot <john@foliot.ca>, 'Sean Hayes' <Sean.Hayes@microsoft.com>, janina@rednote.net, 'Silvia Pfeiffer' <silviapfeiffer1@gmail.com>, rubys@intertwingly.net, laura.lee.carlson@gmail.com, mjs@apple.com, 'Paul Cotton' <Paul.Cotton@microsoft.com>, public-html-a11y@w3.org, public-html@w3.org
On Mar 21, 2012, at 17:37 , Leif Halvard Silli wrote: > David Singer, Wed, 21 Mar 2012 16:48:32 -0700: > >> I would explore in the direction of elements under audio/video and >> parallel to track: > > Guess it is a good thing that it could work for <audio> as well. :-) > >> (sketching furiously here) >> >> <video…> >> <track…> >> <link rel="longdesc" href="…" /> >> <link rel="transcript" href="…" /> >> <div rel="alt" lang="cn-US">alternative text</div> >> </video> > > On the positive side: > > I like the use of rel=longdesc. It has been proposed before ... This > solution has the potential to work for other elements too. > > On the negative side: > > Did you chose <link> because <a> would be considered fallback ...? > Isn't even <link> - until further - just fallback? random choice between link, a, or something new. > > In fact, so long as <link> is hidden in the fallback, then it is not > keyboard accessible - regardless of whether you staff it with > @tabindex=. And so, without some workaround for that, then the <link> > would have to be placed outside the <video> element. I would say that items before the last track are not fallback; items after it are. or maybe items before the first track, to make it easier. > >> Similarly the tracks could indicate timed accessibility alternatives >> via their "kind" label. >> >> And these are all useful for all users; a programmatic way to find >> the transcript, description, and short text benefit all boats. > > In Firefox - and, I think, only in Firefox - the the <link> can, via > CSS, become a visual, clickable element. In fact, it does not need any > styling, so long as you add tabindex= to it or something like that. The > problem is just: How to glue the link to the video in such a way that > it is obvious that it is for the video. > -- > leif h silli Dave Singer Multimedia and Software Standards, Apple singer@apple.com
Received on Thursday, 22 March 2012 03:30:45 UTC