# Re: Call for Review: HTML5 Image Description Extension (longdesc) Last Call

From: James Craig <jcraig@apple.com>
Date: Tue, 13 Aug 2013 18:42:37 -0700

Message-id: <FA8627C3-C778-4CE6-9E24-7D52A001A7EB@apple.com>
To: Peter Krautzberger <peter.krautzberger@mathjax.org>
Thanks for clarifying Peter. From Janina's description, it sounded like she was talking about accessibility support for MathML.

On Jul 17, 2013, at 12:18 PM, Peter Krautzberger <peter.krautzberger@mathjax.org> wrote:

> Hi Craig,
>
> > I'm not sure to which contributions you are referring. Was this an client-side add-on project like
> >MathJax or was it a contribution to WebKit? Perhaps these contributions didn't make it through the code review process? I see a couple of Linux-only bugs (71738 and 71742). Perhaps you
> > heard someone complaining about Gtk or Orca support?
>
> > A look through the change logs indicates Apple engineers contributed all the
> > MathML accessibility work to WebKit, but I know Google did some work in
> > Chromium and ChromeVox to take advantage of these updates, as did the VoiceOver engineering team.
>
> Since I was one of the people bringing this up at that W3C ebook workshop, let me add some background.
>
> This is about WebKit. Its MathML implementation (visual rendering, not accessibility) has been done by volunteers, notably Dave Barton re-wrote and extended it in 2012. Not all of his code has been integrated into Safari 6 since its WebKit cut-off was too early.
>
> There are a couple of WebKit patches that are not being landed, especially a larger security patch by Martin Robinson. MathJax's Fred Wang has submitted a few patches recently as well.
>
> But even with all current patches, the WebKit MathML implementation is far from complete (and far behind Firefox). It's good enough for enthusiasts but not ready for professional production.
>
> Blink/Chrome has removed the MathML code completely. ChromeVox only reads MathML, but cannot visually render it (but it can handle MathJax-rendering just as well).
>
> Peter Krautzberger.
>
> --
> Dr. Peter Krautzberger
> MathJax Manager
> mathjax.org | fb.com/mathjax | @mathjax
>
>


Received on Wednesday, 14 August 2013 01:42:53 UTC

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