[jawsscripts] Updated JAWS scripts for Mozilla Thunderbird
- From: Jamal Mazrui <empower@xxxxxxxxx>
- To: blind-mozilla@xxxxxxxxxxxxxxx, jawsscripts@xxxxxxxxxxxxx
- Date: Sun, 14 Nov 2010 22:19:12 -0500
Executable installer
http://EmpowermentZone.com/tb_scr.exe
Zip archive
http://EmpowermentZone.com/tb_scr.zip
This is another maintenance release to improve compatibility with TB
3.1X. Unfortunately, the TB implementation of MSAA seems to have a few
flaws. One of these is that the index of the focused item in a list,
such as a list of mail messages, is not directly available via MSAA. An
inefficient workaround is to loop through the list, starting with the
first item, until an item with a focused state is found. The further
down the list until a match is found, the longer will be the delay.
The scripts now stop trying to find the focused index after the top 200
items. The consequence is that the number of items in a thread, and the
unread number within that group, are no longer read. Instead, the
scripts just say "Expanded" on the first item of a thread. When the
focus is on the second or higher number of items in a thread, the
position within that group is announced if the focus index was available.
This version also fixes a problem whereby standard listboxes, such as
those in JAWS dialogs, were not read properly when navigating with the
arrow keys. The Alt+Delete script is also fixed, again with the caviat
that the current index is not available if the focus is further down the
list than the 200th item.
200 is an arbitrary number that was chosen to balance useful information
and performance. Feedback is welcome on whether another number would be
more optimal. This depends on the computer speed of users of these
scripts, and how much delay is acceptable in order to have useful meta
data when encountering the first item in a message thread.
Jamal
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