[orca-list] Firefox Live Region support change

[Scott Haeger <scott bashautomation com>]

Hey Everybody!

We've just checked in a major change to how Orca handles live regions.  
The new change gives Orca partial support for live regions that do not 
have ARIA markup.  This is an exciting change because this greatly 
increases the number of real life web pages that we support.  Orca live 
region support for http://finance.google.com and 
http://finance.yahoo.com is now quite good.  In the coming weeks I will 
be focusing on adding additional support for the sports scoreboards at 
ESPN and CBS sports. 

I suggest visiting http://live.gnome.org/Orca/Firefox/LiveRegions if you 
are not familiar with live regions.  Here you will find a brief 
explanation of live regions, the Orca keyboard commands associated with 
live region support, and several links to known live region containing 
web sites.  Please feel free to add to the list of known web sites by 
editing the wiki or posting to this list.  In addition, I would greatly 
appreciate any feedback about our live region support, including feature 
requests.

There are a couple of known issues:
1)  Since there is no ARIA markup, determining what is and what is not a 
live region can be tricky because there is nothing to definitively tell 
us that an event is a live region change.  We have set up an event 
filter for this purpose but it may not be fool proof.  Please let us 
know if you come across a web site that announces more information than 
it use to.  This indicates that some event was treated as a live region 
when in fact it was not.  Please pay close attention to web sites that 
have widgets that build themselves dynamically.

2)  Navigating a web page (eg. tabbing) is a bit sluggish when live 
region announcements are being made.  We are aware of this and are 
trying to address it.

3)  Moving to the last live region (key command 'y') may be out of sync 
with the announcement on very busy pages.  We are trying to address this.

Have fun!
Scott