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RE: tool for exposing marked up SVG to AT

From: Léonie Watson <lwatson@paciellogroup.com>
Date: Wed, 2 Sep 2015 13:30:47 +0100
To: "'Fred Esch'" <fesch@us.ibm.com>, "'SVG-A11y TF'" <public-svg-a11y@w3.org>
Cc: "'Charu D Pandhi'" <cpandhi@us.ibm.com>
Message-ID: <059001d0e57b$32e04100$98a0c300$@paciellogroup.com>


I don't seem to be able to unpack either .zip archive. Not sure whether it's
Windows 10 playing up, but could I trouble you to send both archives over as
an attachment just in case the download corrupted them? Thanks.




From: Fred Esch [mailto:fesch@us.ibm.com] 
Sent: 27 August 2015 21:51
To: SVG-A11y TF <public-svg-a11y@w3.org>
Cc: Charu D Pandhi <cpandhi@us.ibm.com>
Subject: tool for exposing marked up SVG to AT



I created a tool that takes Graphics Module marked up SVG and exposes the
SVG to assistive technology. The tool is an effort to provide a view into
what user agents should do with SVG once the Graphics Module is done and
user agents support it.

I added a entry in the Experiments in Markup
<https://www.w3.org/wiki/SVG_Accessibility#Experiments_in_markup>  section
on the wiki page - Navigation Experiments 2 and a wiki page (Navigation
Experiments 2 <https://www.w3.org/wiki/Navigation_Experiments_2> ). They
have links to two zip files. One zip contains a set of sample charts marked
up with Graphics Module syntax. The other zip contains a web page that will
read a marked up SVG file and expose the SVG to assistive technology. 

What the JavaScript does is build a visible shadow DOM of the SVG (you can
push the shadow DOM offscreen by uncommenting two lines of JavaScript if it
bothers you). The shadow DOM is really a tree built from lists. JavaScript
supports using the arrow keys to move through the tree. The exposed text is
more verbose that it will be in the future, in that descriptions are
appended to the label rather than being an optional item and graphics
related aria properties (aria-valuemin, aria-valuemax) are included when
present as min:value and max:value. 


Fred Esch 
Accessibility Focal, Watson Solutions
AARB Complex Visualization Working Group Chair
W3C SVG Accessibility Task Force 


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Received on Wednesday, 2 September 2015 12:31:13 UTC

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