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Re: Seeking input on making a feature of draft W3C site more accessible

From: Jon Gunderson <jongund@illinois.edu>
Date: Thu, 24 Sep 2009 15:36:03 -0500 (CDT)
To: "Ian Jacobs" <ij@w3.org>
Cc: w3c-wai-ig@w3.org
Message-Id: <20090924153603.BXC16390@expms1.cites.uiuc.edu>
The status of the hide/show information should be after the main text of the header so screen reader users don't need to hear it repeated.

Hiding and showing content like this is a little tricky, since it is not necessarily intuitive for a screen reader user to know what is actually happening.

Come to the accessibility conference next week you can ask some experts:
http://webaccessibilityconference.illinois.edu/

Jon


---- Original message ----
>Date: Thu, 24 Sep 2009 15:30:55 -0500
>From: Ian Jacobs <ij@w3.org>  
>Subject: Re: Seeking input on making a feature of draft W3C site more accessible  
>To: Jon Gunderson <jongund@illinois.edu>
>Cc: w3c-wai-ig@w3.org
>
>
>On 24 Sep 2009, at 3:26 PM, Jon Gunderson wrote:
>
>> Ian,
>>
>> One way is for the scripting to add some offscreen text content to  
>> the end of the working group text, eiither "Show more information"  
>> or "Hide more information"
>>
>> Modified code:
>>
>>            <H3 class="h4">
>>               <SPAN class="expand_section" title="Device APIs and  
>> Policy Working Group"><A href="#">Device APIs and Policy <span  
>> class="offscreen">Show more information</span></A></SPAN>
>>            </H3>
>
>Hi Jon,
>
>I was concerned that an offscreen solution might lead to a lot of  
>noise (since there will be many such headings on a page).
>
>I could see using an offscreen solution (e.g., that would be in the  
>tab navigation order) so that before hitting the barrage of expandable  
>headings, one would be given fair warning.
>
>  _ Ian
>
>>
>> Jon
>>
>>
>> ---- Original message ----
>>> Date: Thu, 24 Sep 2009 15:06:50 -0500
>>> From: Ian Jacobs <ij@w3.org>
>>> Subject: Seeking input on making a feature of draft W3C site more  
>>> accessible
>>> To: w3c-wai-ig@w3.org
>>>
>>> Dear WAI IG,
>>>
>>> I would like your input on a comment about the draft W3C Web site and
>>> would like your input on how to make a particular feature more
>>> accessible.
>>>
>>> The draft site includes an expand/collapse content feature. For
>>> example, on the page that lists W3C groups:
>>> http://beta.w3.org/Consortium/activities
>>>
>>> when you select a heading under "Working Groups" the heading  
>>> 'expands'
>>> to display content after it. When content is displayed, selecting the
>>> heading 'collapses' it, hiding the content. Expanding and collapsing
>>> both work with mouse click or keyboard activation.
>>>
>>> We use a visual cue (a small image) to signal that there is  
>>> expandable
>>> content. It was pointed out that we need a non-visual indicator as
>>> well. In the current design, the image is included via CSS and so we
>>> cannot add alt text.
>>>
>>> Here's how the site works today:
>>>
>>>  * If javascript is turned off or not supported, the content is
>>> expanded and the issue goes away.
>>>
>>>  * When javascript is enabled, there is one image to indicate
>>> "closed" and another to indicate "open." The images are inserted via
>>> CSS. The javascript is used to position a class attribute value in  
>>> the
>>> content, and the CSS is applied accordingly (displaying or hiding
>>> content according to the current state).
>>>
>>> One suggestion was to use WAI-ARIA's aria-expanded. However, this  
>>> will
>>> provide information only to users whose browser and assistive
>>> technology support WAI-ARIA, and not to others.
>>>
>>> Typically there are a number of expandable blocks on a page (ranging
>>> from 5 to maybe 100 at most). Therefore,  I want to be sure that any
>>> solution (e.g., using text) is not overly verbose.
>>>
>>> Possible solution: On some pages that have expandable content there  
>>> is
>>> a "show all / hide all" switch. That switch appears earlier in
>>> document order than the list of expandable blocks. I was wondering
>>> whether we might make use of that piece of content to let people know
>>> that there's a bunch of expandable content on the page. For example,
>>> would it be sufficient to label the option buttons: "Show all content
>>> under heading level 3s below" and "Hide all content under heading
>>> level 3s below" and not have additional information that they are
>>> expandable?
>>>
>>> Thank you for any suggestions,
>>>
>>> Ian Jacobs
>>>
>>> --
>>> Ian Jacobs (ij@w3.org)    http://www.w3.org/People/Jacobs/
>>> Tel:                                      +1 718 260 9447
>>>
>>>
>> Jon Gunderson, Ph.D.
>> Coordinator Information Technology Accessibility
>> Disability Resources and Educational Services
>>
>> Rehabilitation Education Center
>> Room 86
>> 1207 S. Oak Street
>> Champaign, Illinois 61820
>>
>> Voice: (217) 244-5870
>>
>> WWW: http://www.cita.uiuc.edu/
>> WWW: https://netfiles.uiuc.edu/jongund/www/
>>
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>>
>
>--
>Ian Jacobs (ij@w3.org)    http://www.w3.org/People/Jacobs/
>Tel:                                      +1 718 260 9447
>
Jon Gunderson, Ph.D.
Coordinator Information Technology Accessibility
Disability Resources and Educational Services

Rehabilitation Education Center
Room 86
1207 S. Oak Street
Champaign, Illinois 61820

Voice: (217) 244-5870

WWW: http://www.cita.uiuc.edu/
WWW: https://netfiles.uiuc.edu/jongund/www/

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Received on Thursday, 24 September 2009 20:36:42 GMT

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