Comment 1 by jteh on 2014-12-14 22:41
We need a way to detect that the action actually occurred rather than saying it always. Also, I think this only makes sense if we actually announce the new zoom level.

Comment 2 by bhavyashah on 2014-12-15 18:08
Hi,
Yes, perhaps I was unclear.
I too was asking for the announcement of the new zoom level, rather than just whether it zoomed in or out (which would be quite pointless).

@jcsteh is this something which could be sent from Firefox maybe as sort of notification to NVDA?

Perhaps. The problem is that there's no generic way to indicate zoom level to accessibility tools. Two possible solutions:

1. Create some generic way of exposing zoom level. This seems like a pretty app specific thing, though; different types of apps would have different behaviour concerning zooming.
2. Communicate it as a simple text notification. There's actually no way to do this with IAccessible2 aside from a live region, which means having an off-screen live region somewhere. I'm also not a big fan of this because it's very screen reader centric. Still, it's probably the simpler option given the difficulty of doing option 1 well.