Re: page transition focus management for SPA

Hi Adam,

Taking a step back. What are the current behavior, expected behavior, and
steps to reproduce? Starting from launching the screen reader and the
browser, please describe the sequence of relevant keystrokes and screen
reader announcements.

I'd like to understand the problem more clearly before suggesting further
solutions.


Mitchell Evan, CPWA
linkedin.com/in/mitchellrevan
Twitter @mitchellrevan
+49 1525 8950540
+1 510 375 6104

On Sun, Sep 20, 2020, 1:50 AM Adam Cooper <cooperad@bigpond.com> wrote:

> Hi Mitchell … it could be two things competing for stack time as you
> suggest – I’ll check it out. The activeElement is the document after 400ms
> – it’s just that JAWS does not honour this in MS Edge … I will check with
> Chrome.
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> Do you think it is worth setting a mutation observer for subtree
> modifications and using this to trigger moving focus after 400ms or so
> (this 400ms is the delay recommended by FSDN for the JAWS refresh method)?
>
> Thanks for the info …
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> *From:* Mitchell Evan [mailto:mtchllvn@gmail.com]
> *Sent:* Saturday, 19 September 2020 6:42 PM
> *To:* Adam Cooper
> *Subject:* Re: page transition focus management for SPA
>
>
>
> Hi Adam,
>
>
>
> These days any content change (mutation event), which must be happening
> already in SPA navigation, should be enough to trigger a JAWS buffer
> refresh. I would troubleshoot it like this:
>
>
>
> (1) Log document.activeElement every 100 ms after navigating.
> (2) In JAWS, press the JAWS key + Tab to announce the current focus
> location.
>
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> If step 1 reports an unexpected focus location, then it's a problem in
> your script. Maybe a race condition.
>
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> If step 1 proves focus has been moved to a logical spot, yet step 2
> doesn't announce it, then report a bug against the browser or the screen
> reader. I feel this scenario is unlikely but possible. I would not hack
> around this; you did a right thing with focus. Some users will be severely
> inconvenienced but they can manually move focus and get reoriented.
>
>
>
> Possible further troubleshooting:
>
> (3) Repeat in other screen reader - browser combinations.
>
>
>
> Mitchell Evan, CPWA
> linkedin.com/in/mitchellrevan
> Twitter @mitchellrevan
> +49 1525 8950540
> +1 510 375 6104
>
>
>
> On Sat, Sep 19, 2020, 12:59 AM Adam Cooper <cooperad@bigpond.com> wrote:
>
> hi all ... just wondering whether anyone has any tips on how to trigger a
> virtual buffer refresh in JAWS when a view changes in a single page
> application.
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> We've tried fireing load events and using location.reload() and moving
> focus to the document after a timeout, but virtual buffer focus remains
> stubbornly in the same place.
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> Does anyone know which window event triggers a virtual buffer refresh?
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