- From: Anselm Hannemann <info@anselm-hannemann.com>
- Date: Tue, 4 Sep 2012 23:26:16 +0200
- To: Kornel Lesiński <kornel@geekhood.net>
- Cc: public-respimg@w3.org
- Message-ID: <399B9725E3514CD09DA84AEDC8E752AB@anselm-hannemann.com>
This sounds very good to me. It makes everything a fallback content when it's not an element or element-attribute and inside of the picture-element. The advantage is clear: It works with and without <img>-element and it has no duplicates. Cheers, Anselm Am Dienstag, 4. September 2012 um 22:13 schrieb Kornel Lesiński: > On Thu, 30 Aug 2012 20:10:54 +0100, Mathew Marquis <mat@matmarquis.com (mailto:mat@matmarquis.com)> > wrote: > > > What I’d like to do here is get your thoughts, as authors, on the > > following: > > > > 1) Duplicating the `alt` attribute on both `picture` and the fallback > > `img` > > 2) `alt` specified on fallback `img`, using `aria-labelledby` on > > `picture` to reference the ID of the fallback `img` > > > > > I think there's a third option missing: > > 3) Don't duplicate the `alt` attribute, reuse fallback in a smart way. > > Simply don't use `alt` on <picture> at all. Require UAs to read all > content of <picture> (including content of <img alt>) when alternative > text is required. > > > <picture><img alt="fallback text"></picture> > > <picture><img alt="fallback"> text</picture> > > <picture>fallback <img alt="text"></picture> > > <picture>fallback text</picture> > > In all examples above the alt would be identical: read as "fallback text". > And it would be read basically the same way by <picture>-supporting HTML5 > UAs as HTML4 UAs. > > > The algorithm for extracting alt this way is quite simple. In jQuery > notation would be: > > $('picture source').remove() // ignore <source>, keep rest of the content > > $('picture img').each(function(){ > $(this).replace(document.createTextNode(this.alt)) // Replace <img > alt="foo"> with "foo" > }) > > var alt = $('picture').text() // take all text remaining in > <picture>here</picture> > > > -- > regards, Kornel > >
Received on Tuesday, 4 September 2012 21:26:40 UTC