Bug 174898 – AX: Sliders not operable with VoiceOver on iPad

• Status: RESOLVED
• Resolution: WORKSFORME
• Component: Accessibility

Browser: mobile Safari 10.0
iPad iOS 10.3.1

Hello,

I encountered an issue with slider when using VoiceOver on iPad.
When the slider receives focus, VoiceOver announces "Swipe up and down with one finger to adjust the value", however this does not have any effect.

Could you please take a look at this issue?

Testing example:
http://oaa-accessibility.org/example/32/

Best regards

Helene Vinh for Amadeus SAS

[Radar WebKit Bug Importer]

<rdar://problem/33568788>

[chris fleizach]

(In reply to helene.vinh from comment #0)
> Browser: mobile Safari 10.0
> iPad iOS 10.3.1
> 
> Hello,
> 
> I encountered an issue with slider when using VoiceOver on iPad.
> When the slider receives focus, VoiceOver announces "Swipe up and down with
> one finger to adjust the value", however this does not have any effect.
> 
> Could you please take a look at this issue?
> 
> Testing example:
> http://oaa-accessibility.org/example/32/
> 
> Best regards
> 
> Helene Vinh for Amadeus SAS

These are ARIA sliders. THere's no way to adjust those from an AT directly. This should be addressed with WK implements Accessibility Object Model (AOM)

Hello Chris,

Could you please give more details about your answer?

If i understand well, the issue is not on VoiceOver but on Webkit?

Thanks & regards

[chris fleizach]

(In reply to helene.vinh from comment #3)
> Hello Chris,
> 
> Could you please give more details about your answer?
> 
> If i understand well, the issue is not on VoiceOver but on Webkit?
> 
> Thanks & regards

there's no web API that can be used to modify the value of a slider through an assistive technology. it's one of the shortcomings of ARIA. on PC based systems, people can install keyboard event handlers to modify the aria slider. that doesn't exist on iOS though

[James Craig]

Closing as Behaves Correctly. See the AOM Explainer for more info.

https://github.com/WICG/aom/blob/gh-pages/explainer.md#background-assistive-technology-and-the-accessibility-tree