- From: Schnabel, Stefan <stefan.schnabel@sap.com>
- Date: Wed, 3 Feb 2016 07:42:01 +0000
- To: Bryan Garaventa <bryan.garaventa@ssbbartgroup.com>, Birkir Gunnarsson <birkir.gunnarsson@deque.com>, James Nurthen <james.nurthen@oracle.com>
- CC: "public-aria@w3.org" <public-aria@w3.org>
To be used in which pattern? Collapse/Expand of regions? Regards Stefan -----Original Message----- From: Bryan Garaventa [mailto:bryan.garaventa@ssbbartgroup.com] Sent: Mittwoch, 3. Februar 2016 00:39 To: Birkir Gunnarsson <birkir.gunnarsson@deque.com>; James Nurthen <james.nurthen@oracle.com> Cc: public-aria@w3.org Subject: RE: Why is aria-expanded invalid with a checkbox? I vote we just add this role to the spec, it already works. E.G <input type="checkbox" aria-expanded="true" title="Test" /> This already sets the 'expanded' state in IE11, Firefox, and Chrome in the accessibility tree. -----Original Message----- From: Birkir Gunnarsson [mailto:birkir.gunnarsson@deque.com] Sent: Tuesday, February 02, 2016 3:27 PM To: James Nurthen <james.nurthen@oracle.com> Cc: public-aria@w3.org Subject: Re: Why is aria-expanded invalid with a checkbox? As a screen reader, if I move to a checkbox and hear: "I hold a non immigrant visa, checkbox not checked collapsed" (<input type="checkbox" aria-expanded="false" aria-controls="niv"> <div role="region" aria-label="None Immigrant Visa information" id="niv"> ... </div> I would know that checking that checkbox will cause additional content to appear. You are right that aria-controls hints at the same thing, but it is not necessarily tied to the display of a section of content. It could be a submit button that becomes enabled only after I check the checkbox. It could also be a section that is already visible on the page but checking the checkbox automatically changes default UI element settings. the use of aria-expanded would clearly tell me that a section of the page will be expanded or collapsed as a result of me interacting with the checkbox, the non-visual equivalent of seeing content appear and disappear. I am just perplexed why aria-expanded is allowed on so many roles, (I have some difficulty seeing the use cases for some of them), but not on a check box. Cheers On 2/2/16, James Nurthen <james.nurthen@oracle.com> wrote: > I'd have thought that checked in combination with aria-controls was > enough here. > Unless the checked and expanded state can be different (which I don't > believe they could be) I would just use checked and aria-controls. > > On 2/2/2016 2:58 PM, Birkir Gunnarsson wrote: >> Oh wise ones. >> >> I am working with a team that is implementing a form where checking a >> check box expands a section further down the page. >> They actually thought of putting aria-expanded and aria-controls on >> the check box to communicate this info to assistive technologies. >> I had to stop the because checkbox role is not one of the 40 or so >> roles that allow the aria-expanded property. >> >> >> I find this curious. >> The situation I described, where sections of a dynamic form or >> webpage are displayed or hidden in response to user checking or >> unchecking a check box is quite common. >> Sure, if the section of the page is, in content order, after the >> checkbox that controls it, users do not necessarily need to be aware >> of the change, but it is a very smart usability decision to inform >> the user that checking a checkbox affects contents elsewhere on the >> webpage. >> My questions are: >> 1. Why was aria-expanded not considered a valid attribute with check >> boxes and, 2. Can this case be revisited? If so I'd be happy to >> create an issue ticket if necessary. >> Thanks >> -Birkir >> >> > > -- > Regards, James > > Oracle <http://www.oracle.com> > James Nurthen | Principal Engineer, Accessibility > Phone: +1 650 506 6781 <tel:+1%20650%20506%206781> | Mobile: +1 415 > 987 > 1918 <tel:+1%20415%20987%201918> | Video: james.nurthen@oracle.com > <sip:james.nurthen@oracle.com> Oracle Corporate Architecture > 500 Oracle Parkway | Redwood Cty, CA 94065 Green Oracle > <http://www.oracle.com/commitment> Oracle is committed to developing > practices and products that help protect the environment > > -- Birkir R. Gunnarsson Senior Accessibility Subject Matter Expert | Deque Systems 2121 Cooperative Way, Suite 210 Herndon, VA, 20171 Ph: (919) 607-27 53 Twitter: @birkir_gun
Received on Wednesday, 3 February 2016 07:42:37 UTC