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Re: Rollover Text with Images - ARIA popup or not?

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From: Jonathan Avila
Date: May 14, 2014 5:22PM

[Bryan wrote] and use ARIA Tooltip markup to cause it to be announced.

Bryan, using the role of tooltip doesn't cause anything to be announced.
Generally tooltips are identified by aria-describedby which is what would
cause a screen reader to announce the tooltip -- not simply the role of
tooltip.

Jonathan

-----Original Message-----
From: <EMAIL REMOVED>
[mailto: <EMAIL REMOVED> ] On Behalf Of Bryan Garaventa
Sent: Wednesday, May 14, 2014 5:58 PM
To: 'WebAIM Discussion List'
Subject: Re: [WebAIM] Rollover Text with Images - ARIA popup or not?

Unfortunately at present aria-haspopup should only be used on menus,
because it is explicitly mapped as such. This is why NVDA will announce
"submenu"
for the following:

<a href="#" aria-haspopup="true">
Test
</a>

The same is true for button elements.

One option, if you have a link that opens an image as an overlay, you
could use 'focus' to show it, and 'blur' to dismiss it, and use ARIA
Tooltip markup to cause it to be announced.

E.G

<a href="#" aria-describedby="myTooltipId"> Trigger </a>

<img id="myTooltipId" role="tooltip" aria-label="Text to be announced when
rendered" ... />


-----Original Message-----
From: <EMAIL REMOVED>
[mailto: <EMAIL REMOVED> ] On Behalf Of Jonathan Avila
Sent: Wednesday, May 14, 2014 2:32 PM
To: WebAIM Discussion List
Subject: Re: [WebAIM] Rollover Text with Images - ARIA popup or not?

Bryan, I think the aria-haspopup attribute could be useful in situations
such as this. Is it a hard requirement that it can only be used in menus?
It seems like it could be useful to indicate when a dialog might appear as
well as when rollovers appear.

Judith, the aria-haspopup would provide indication to ARIA supported AT
that something opens -- a fallback could be to add the text you describe
for non-ARIA supported technology and other users.

If the content is activated by the user you'll want to move focus to the
new content with the JavaScript focus() method and make sure that the
revealed element can receive focus -- for example by setting
tabindex="-1". If other content can't be rolled over until this item is
closed you'll need a way to close the pop-up too.

Best Regards,

Jonathan

-----Original Message-----
From: <EMAIL REMOVED>
[mailto: <EMAIL REMOVED> ] On Behalf Of Bryan Garaventa
Sent: Wednesday, May 14, 2014 4:44 PM
To: 'WebAIM Discussion List'
Subject: Re: [WebAIM] Rollover Text with Images - ARIA popup or not?

Is the popup a menu? One thing to keep in mind is that aria-haspopup
should only be used on menus.
E.G
http://www.w3.org/TR/wai-aria/states_and_properties#aria-haspopup


-----Original Message-----
From: <EMAIL REMOVED>
[mailto: <EMAIL REMOVED> ] On Behalf Of
<EMAIL REMOVED>
Sent: Wednesday, May 14, 2014 1:26 PM
To: <EMAIL REMOVED>
Subject: [WebAIM] Rollover Text with Images - ARIA popup or not?

I am advising an interaction design team on how to make a new component
accessible.

On a related, but slightly different component - balloon help (aka bubble
help), we are using ARIA (aria-haspopup="true") and indicating the
beginning and end of the popup with hidden text.

This new component is not an actual popup. It pairs rollover text with a
changing image - on hover, click, key press enter, and tap on the link.

Accessibility requirements:

* The image will include meaningful alt text
* Hidden text after the trigger link reads "displays image"

Would this type of interaction be perceived as a popup to someone who
cannot see the screen?

Logically I don't think so, but wanted to see what others would advise. Is
hidden text "displays image" sufficient to provide the intended perception
and consumption of the information?


Thanks,


Judith Blankman

Interaction Designer, Accessibility Strategist Customer Experience



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