https://bugs.documentfoundation.org/show_bug.cgi?id=149488

Michael Weghorn <[email protected]> changed:

           What    |Removed                     |Added
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             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

--- Comment #1 from Michael Weghorn <[email protected]> ---
Valueable input from Marco Zehe on the a11y mailing list [1]:

"Correct, in PowerPoint, when a presentation is started, both NVDA and JAWS,
and presumably at some 
point, Narrator, too, will grab the slide contents and present it slide by
slide like a web page. 
JAWS even annotates links, tables, lists, etc., in a very rich way. NVDA, to my
knowledge, doesn't 
do that yet.

In MS Office, screen readers have largely switched to using UI Automation (UIA)
for access to all 
things documents and UI. This is primarily because of Narrator, which doesn't
support anything 
other than UIA (MSAA and IA2 are only supported by way of an IA2 to UIA bridge,
which is slow and 
unreliable). As a consequence, Microsoft never got on the IAccessible2
bandwaggon, but has pushed 
the UIA implementation in the Chromium project so they can stop using the
IAccessible2ToUIA Bridge 
for Narrator's access to web content. There were even plans and experiments to
switch Firefox over 
to UIA when I was still working at Mozilla. But since I am no longer involved
there, I don't know 
if this is still on the table for the time after they finish the "Cache The
World" project.

So, in the long term, and as resources permit, the more future-proof way
forward for LibreOffice on 
Windows might be to switch over to an UIA implementation as well. But even
without that, there 
would need to be a concerted effort between the Impress and screen reader
teams, like NVDA, to make 
NVDA realize that it is in a slide show in presentation mode, and gain all the
access to the slide 
contents like it were a web page or similar. That cannot be achieved by one
party alone I think. 
And getting Vispero on board for JAWS support is an even bigger fish to fry."


[1] https://listarchives.libreoffice.org/global/accessibility/msg01007.html

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