511915 - message header: when tabbing into row x (>1) of collapsed list of many contacts in some header, viewing another message will also have row x scrolled into view, sometimes no header shown at all (many addresses)

Status: NEW

(Thunderbird :: Message Reader UI, defect)

Description

[Dan Mosedale (:dmosedale, :dmose)]

+++ This bug was initially created as a clone of Bug #460648 +++

Steps to reproduce provided by Thomas D:

> 1. message with multiple recipients, <tab> through collapsed list of
> to-recipients
> -> when you go past last visible to-recipient of first row, second row is
> scrolled into view
> 2. now immediately click on another mail message
> 
> Actual behaviour:
> - the other message also has the second row of to-recipient's scrolled into
> view. If there is just one recipient (single row), you will see NO recipients
> at all in the other message
> 
> Expected behaviour:
> - viewing another message should always have the first row of recipients
> scrolled into view

It would be interesting to know if it's possible to reproduce this behavior using the mouse, or if it's a keyboard-only thing.

Comment 1

[Thomas D. (:thomas8)]

Dan, thanks for the spin-off.

(In reply to comment #0)
> It would be interesting to know if it's possible to reproduce this behavior
> using the mouse, or if it's a keyboard-only thing.

No, currently you cannot reproduce this behaviour using mouse only, because you can't scroll second row of collapsed contacts into view without using <tab>. 

Perhaps this might be possible in rare cases after Bug 499989 gets fixed, hopefully restoring some sort of "collapse" button. Then you could expand multiple contacts, focus a contact in second row (using right-click), re-collapse, view another message, which might then have the same effect. Just guessing, though.