Bug#870282: Firefox: A11Y AT-SPI non standart event for caret-moved (not including detail1 caret offset)

[Alex ARNAUD]

Package: firefox
Version: 54.0-2
Tags: a11y
Owner: bugs at hypra.fr
User: bugs at hypra.fr
Usertags: hypra
Forwarded: https://bugzilla.mozilla.org/show_bug.cgi?id=1282221

DESCRIPTION FROM UPSTREAM:
"Steps to reproduce:

developped focus tracking software in compiz. i fell on this issue, the 
text isn't followed correctly by screen magnifier in gecko related softs.
bug can be observed through accersizer, or dbus monitor.
Bug happens in firefox and icedove.



Actual results:

When moving through text, or writing text:
an "object:text-caret-moved" event is sent, according to AT-SPI and STK 
standard, but no "detail1" field is provided, which is supposed to carry 
along the caret offset in text.


Expected results:

The event should send along it's caret offset, so that the received 
AT-SPI event can find out the right offset."