- 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
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/ >> >> --------------------------------------------------------------- >> Privacy Information >> --------------------------------------------------------------- >> This email (including attachments) is covered by the Electronic >> Communications Privacy Act, 18 U.S.C. 2510-2521, is confidential and >> may be legally privileged. It is intended for the use of the >> individual or entity to which it is addressed and may contain >> information that is privileged, confidential, and exempt from >> disclosure under applicable law. If the reader of this email is not >> the intended recipient, or agent responsible for delivering or >> copying of this communication, you are hereby notified that any >> retention, dissemination, distribution, or copying of this >> communication is strictly prohibited. If you have received this >> communication in error, please reply to the sender that you have >> received the message in error, then delete it. Thank you. >> >> > >-- >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/ --------------------------------------------------------------- Privacy Information --------------------------------------------------------------- This email (including attachments) is covered by the Electronic Communications Privacy Act, 18 U.S.C. 2510-2521, is confidential and may be legally privileged. It is intended for the use of the individual or entity to which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this email is not the intended recipient, or agent responsible for delivering or copying of this communication, you are hereby notified that any retention, dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please reply to the sender that you have received the message in error, then delete it. Thank you.
Received on Thursday, 24 September 2009 20:36:42 UTC