Re: Generated CSS content and browser/assistive technology compatibility

>
> Frustrating, I know, but from our end, there's nothing we could do except
> cut all support for ISimpleDOM, but that would leave all JAWS users in the
> dark for an indeterminable amount of time. ;)


An alternative is to define what is the required behavior from user agents.
and in the meantime create test cases on current/expected behaviour and
test them on AT/browser/platform combinations and from the results file
bugs/ work with vendors to get bugs fixed.

--

Regards

SteveF
HTML 5.1 <http://www.w3.org/html/wg/drafts/html/master/>

On 10 October 2014 08:02, Marco Zehe <mzehe@mozilla.com> wrote:

>  That is correct, JAWS is doing its own HTML parsing, like in IE, and is
> not using the info from the accessibility tree. Neither is Window-Eyes if
> that still has any relevance.
>
> Frustrating, I know, but from our end, there's nothing we could do except
> cut all support for ISimpleDOM, but that would leave all JAWS users in the
> dark for an indeterminable amount of time. ;)
>
> Marco
>
>
> On 09.10.2014 20:13, James Nurthen wrote:
>
> I note that FF is exposing it in the accessibility tree too.
>
> I guess JAWS isn't using the accessibility tree for text as JAWS won't
> read it with FF.
>
> Regards,
> James
>
> On 10/9/2014 11:05 AM, Dominic Mazzoni wrote:
>
> Works fine in Chrome too, presumably with any assistive technology since
> we're exposing the generated content in the accessibility tree.
>
> On Thu, Oct 9, 2014 at 10:58 AM, James Nurthen <james.nurthen@oracle.com>
> wrote:
>
>>  I just tested with NVDA and Firefox 31 and it seemed to be read
>> correctly in this combination too.
>>
>>
>>
>> On 10/9/2014 10:51 AM, Gunderson, Jon R wrote:
>>
>> James,
>>
>> Thank you for the code sample.
>>
>> At this point the only known place generated CSS content works with assistive technology is Safari/Voice Over or are there other combinations you are aware of?
>>
>> Jon
>>
>>
>> -----Original Message-----
>> From: James Craig [mailto:jcraig@apple.com <jcraig@apple.com>]
>> Sent: Thursday, October 09, 2014 12:28 PM
>> To: Gunderson, Jon R
>> Cc: Ted O'Connor; W3C WAI Protocols & Formats
>> Subject: Re: CSS flexbox
>>
>>
>>  On Oct 9, 2014, at 6:34 AM, Gunderson, Jon R <jongund@illinois.edu> <jongund@illinois.edu> wrote:
>>
>> Is there a way through a W3C DOM interface to identify this generated content?
>>
>>  CSSOM not DOM:
>> var pseudoBefore = window.getComputedStyle(myElement, "::before"); var genContent = pseudoBefore.getPropertyValue("alt") || pseudoBefore.getPropertyValue("-webkit-alt") || pseudoBefore.getPropertyValue("content");
>>
>> If "content" returned an image URL string, you'd have to further parse to determine if there was a useful text alternative, or maybe the text or speak-as value of the counter if the content of the pseudo-element was a counter. [1]
>>
>> >From the spec:
>>
>>  If pseudoElt is as an ASCII case-insensitive match for either ':before' or '::before' let obj be the ::before pseudo-element of elt.
>> If pseudoElt is as an ASCII case-insensitive match for either ':after' or '::after' let obj be the ::after pseudo-element of elt.
>>
>>  http://dev.w3.org/csswg/cssom/#dom-window-getcomputedstylehttp://dev.w3.org/csswg/cssom/#dom-cssstyledeclaration-getpropertyvalue
>>
>> Cheers,
>> James
>>
>> 1. http://lists.w3.org/Archives/Public/www-style/2014May/thread.html#msg146
>>
>>
>>
>>   --
>> Regards, James
>>
>> [image: Oracle] <http://www.oracle.com>
>> James Nurthen | Principal Engineer, Accessibility
>> Phone: +1 650 506 6781 <+1%20650%20506%206781> | Mobile: +1 415 987 1918
>> <+1%20415%20987%201918>
>> Oracle Corporate Architecture
>> 500 Oracle Parkway | Redwood City, CA 94065
>> [image: Green Oracle] <http://www.oracle.com/commitment> Oracle is
>> committed to developing practices and products that help protect the
>> environment
>>
>
>
> --
> Regards, James
>
> [image: Oracle] <http://www.oracle.com>
> James Nurthen | Principal Engineer, Accessibility
> Phone: +1 650 506 6781 <+1%20650%20506%206781> | Mobile: +1 415 987 1918
> <+1%20415%20987%201918>
> Oracle Corporate Architecture
> 500 Oracle Parkway | Redwood City, CA 94065
> [image: Green Oracle] <http://www.oracle.com/commitment> Oracle is
> committed to developing practices and products that help protect the
> environment
>
>
>