[Bug 10988] add slider element

http://www.w3.org/Bugs/Public/show_bug.cgi?id=10988

--- Comment #19 from Benjamin Hawkes-Lewis <bhawkeslewis@googlemail.com> 2010-10-10 15:57:53 UTC ---
(In reply to comment #18)
> > I don't see any concept of tick marks in ARIA.
> 
> Hopefully an accessibility expert will correct me if I'm wrong, by tick marks
> themselves are a visual aid. The actual value should be read out for screen
> readers. 

To be clearer: I mean I don't see any obvious ARIA mapping for suggested labels
for a range control.

> Labels, though, are a different story. I'm assuming if a specific value in the
> range is given a label, it is the label that should be spoken, not the value. 

Maybe. I'd be happy to expose both bits of information and let UAs (including
AT) expose them to the user as they feel is most appropriate.

> Currently, though, I don't see that there is a true mapping between the values
> given in the list/datalist and the actual range value.

The value of the option element in the list is always an actual range value.

> > The proposed Note mapping HTML5 semantics to native accessibility APIs should
> > cover the mapping of native sliders, including option labels.
> > 
> > http://dev.w3.org/html5/html-api-map/overview.html
> > 
> 
> Well, yes and no. It maps out the input type of range without the associated
> list/datalist. And the reference to the datalist in the mapping document is
> specific to something selectable, and that strikes me is not the equivalent
> behavior in this specific use case.

Sorry, I mean "should" as in: this information *should* be included, but it is
not yet.

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Received on Sunday, 10 October 2010 15:57:55 UTC