Re: [orca-list] Orca getting stuck when browsing web content

[Joanmarie Diggs <jdiggs igalia com>]

Ok, I was able to reproduce it. What's happening is that you're inside
an element which is being destroyed. Orca was attempting to recover
when it's told that the current element is being destroyed, but it
wasn't doing so the element being destroyed is an ancestor of the
current element. Now it does. Please test master and let me know.

Thanks!
--joanie

On Fri, 2021-06-25 at 07:19 +0200, Peter Vágner via orca-list wrote:
> Hello,
> web content line by line using down arrow key in browse mode.
> Sometimes 
> it gets stuck and it is not possible to move past a certain point, 
> sometimes it jumps to the top of the page instead. Also interesting
> is 
> the fact this is only happening while navigating forward (pressing
> down 
> arrow key). When navigating backward it's not happening for me.
> Very often it's the embedded youtube frame that can be used to
> reriably 
> reproduce the problem.
> Here are my steps:
> * Load this article in firefox with orca running. 
> https://matrix.org/blog/2021/06/18/this-week-in-matrix-2021-06-18
> * From the top of the page navigate to the first heading at level 2 
> saying "Matrix Live 🎙"
> * From there use quick navigation to move to the next link (that's
> the 
> youtube channel picture photo).
> * Now navigate forward line by line until you can reproduce the
> issue.
>
> Expected results:
> Orca should navigate line by line allowing to read the whole article 
> including embedded content.
>
> Actual results:
> top or is stuck on a particular spot of a web page.
>
> Notes
> I've used some trial and error and found the commit ac37d8c59 that 
> introduces this behaviour.
> Looking at the commit description I can see and speculate a bit that
> it 
> might be happening when there are some non live region content inside
> a 
> live region.
> Another place where this is frequently happening but I can't
> reproduce 
> matrix client. There is a similar concept in their message timeline.
> The 
> whole timeline is a live region with aria-level set to polite and
> each 
> message has a toolbar of buttons. This toolbar has aria-live=off and 
> that's again the spot where it breaks. This time orca is often
> getting 
> stuck for me.
>
> Can you please take a look?
>
> Greetings
>
> Peter
>
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