428240 - TreeColumnheaders and actual tree columns sometimes get out of synch, 1 more columnheader than actual columns.

Status: VERIFIED FIXED

(Core :: Disability Access APIs, defect)

Description

[Marco Zehe (:MarcoZ)]

This is only visible after patch for bug 427841 is applied.

1. Build Thunderbird on Linux.
2. Start it, and go to your Inbox messages list.
3. Orca speaks the "Date" column header as the active header for the focused cell. Orca Braille Monitor shows the date of the selected message being the focused column.
4. Press SHIFT+TAB to go to the Folder list.
5. DownArrow to select the next folder, in my case "Drafts". Make sure there is at least one message in this folder.
6. TAB to go into the messages list.

Result: On several occasions,, instead of saying "Date column header", Orca would say "Junk Status" column header, but the focused column would still be "Date".
Reason: The "From" column header is present in the column headers list below the Tree Table, but the actual column with "From" information is not displayed.
This moves all following column headers one to the right. Junk Status is the column header to the left of Date.

Once this happens once, within the same session, it never recovers from that state, it will always give the wrong column information.

Comment 1

[alexander :surkov (:asurkov)]

in my case we won't fire show event (DOMi and Accercieser) when treecolumn is shown

Comment 2

[alexander :surkov (:asurkov)]

fixed per bug 434002 comment #1

Comment 3

[Marco Zehe (:MarcoZ)]

Verified fixed in Thunderbird Version 3.0a2pre (2008060103)