rangeslider

Richard Schwerdtfeger schwer at us.ibm.com
Mon Apr 21 02:18:50 UTC 2008


Hi Joseph,

So, i this case we could use a controls relationship to control the slider
range:

http://www.ajaxorized.com/dateslider/slider.html

For the other ones they get more interesting. I would like to know the
keyboard interaction model for having set the start and end points for the
range on a slider. The current accessibility APIs for MSAA, IA2, or
ATK/ATSPI do not provide for a step in the value interfaces. We could place
it in object properties but that requires the AT to look another place for
value information.

I will put this on the agenda but I don't know if this will make it for
ARIA 1.0. My concern is that Sun has an accordion that has been put off to
ARIA 2.0 and they have already worked out the keyboard details. If we let
this in we have to be cognizant of opening up the flood gates.

I will put this on the ARIA agenda. I don't know that we will get to it
this week but we will try.

Rich




Rich Schwerdtfeger
Distinguished Engineer, SWG Accessibility Architect/Strategist
Chair, IBM Accessibility Architecture Review  Board
blog: http://www.ibm.com/developerworks/blogs/page/schwer


                                                                           
             Joseph                                                        
             Scheuhammer                                                   
             <clown at utoronto.c                                          To 
             a>                        David Bolter                        
             Sent by:                  <david.bolter at utoronto.ca>          
             w3c-wai-pf-reques                                          cc 
             t at w3.org                  W3C WAI-PFWG <w3c-wai-pf at w3.org>,   
                                       "fluid-work at fluidproject.org"       
                                       <fluid-work at fluidproject.org>       
             04/18/2008 10:37                                      Subject 
             AM                        Re: rangeslider                     
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           





Sorry for sending this twice, but I forgot to include the fluid-work
mailing list last time.

All,
> The form I've seen is a slider with two thumbs, allowing the user to
> select two endpoints of a range, thereby selecting a range.
Here are some examples:

http://www.ajaxorized.com/dateslider/slider.html
http://tobias.klpstn.com/dojo/dojox/widget/tests/test_RangeSlider.html
http://dev.jquery.com/view/trunk/ui/demos/ui.slider.html, examples 3 and 4.

Main issues are:

1. what are the keystrokes for keyboard access?  This question has
already been forwarded to the dhtml style guide group.

2. what are the role(s) and properties?  Is it a new role (sub-range
slider)?  A new sub-role?

Overarching the above is a question as to whether this is a usable
widget.  Perhaps that's not a question for this group (wai-pfwg), and it
looks like the horse has left the barn (or is leaving soon), so perhaps
it's moot.  I would like to seek advice from user experience folks about
this new widget, hence I'm cc'ing the fluid-work list.  Fluid-work list:
this is the same widget Eli brought up last Jan:
http://fluidproject.org/pipermail/fluid-work/2008-January/001341.html

David Bolter wrote:

> What we are beginning to see are widgets that allow the user to select
> a range. The form I've seen is a slider with two thumbs, allowing the
> user to select two endpoints of a range, thereby selecting a range.
> This is a strange beast.  Seems like an unlawful marriage of role
> slider and property multiselect.  What do we want to do with it?
>
> Out in the wild, I see at least jquery has one, and one is landing in
> dojox (the dojo staging area).
>
> We discussed this on #wai-aria today to the point of thinking we
> needed to raise the issue. (Hopefully not to push the last call date,
> but to just get a basic plan ready, and consider impact on roles and
> wording, specifically perhaps the range role)
>
> cheers,
> David
>
--
;;;;joseph

'This is not war -- this is pest control!'
      - "Doomsday", Dalek Leader -


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