Accessibility: caret tracking in emacs with gnome shell magnifier

[Eric Danan]

Hello,

Due to a visual impairment I constantly work with a screen magnifier 
turned on (in full screen mode), and I need it to track the caret to 
follow what I am typing.

So far I am using emacs 26.1 on cygwin on windows 10, and the windows 10 
magnifier does the job of tracking the caret.

I am considering switching to gnome on linux and therefore installed the 
fedora (version 29) distribution to try it out. The gnome (3.30) shell 
magnifier supports caret tracking and it works in other applications but 
not emacs (26.1).

I previously sent this message to the gnome accessibility list (that was 
a long time ago in 2015, so with earlier versions of emacs and gnome) 
and got a reply from Alex Arnaud (cc) stating:

> I've tried to test Emacs with Accercicer (a accessibility debug tool) 
and my conclusion are Emacs doesn't connect it to AT-SPI (accessibility 
stack).

He also suggested that I write to this list, which I'm (finally!) doing. 
I hope it is appropriate to report this here.

Best regards,

Eric