+++ This bug was initially created as a clone of Bug #1737730 +++

Seen on beta, 95.0b3 (64-bit)

STR

• Print multiple messages which have some attachments
• Print single message with message pane hidden (F8)

Actual result

• Attachment list not printed at the end of each message

Expected result

• Print attachment list at the end of each message
• Keep printing of messages with message pane hidden enabled.

(In reply to Rachel Martin from bug 1737730 comment #11)

This doesn't print the list of attachments. Trying to debug this, we noticed that a debug build crashes here:
https://searchfox.org/mozilla-central/rev/df6434d2ebfdf2b5f89f205fc81d60d64a774fe1/toolkit/components/windowwatcher/nsWindowWatcher.cpp#1039

(In reply to Rachel Martin from bug 1737730 comment #12)

Looks like the patch here also enables printing when the preview is switched off:
https://hg.mozilla.org/comm-central/rev/e66077010600#l3.69
In that case the attachment list is also not printed.

Rachel Martin's patch from bug 1737730 comment #15:
https://github.com/Betterbird/thunderbird-patches/blob/main/91/bugs/1737730-attachment-list-printing.patch
Pls cite this URL in the commit message to credit them.

Pushed by geoff@darktrojan.net:
https://hg.mozilla.org/comm-central/rev/47afbf2a379e
Always output the attachment list for printing, even if message isn't displayed. r=darktrojan

[Approval Request Comment]
Regression caused by (bug #): bug 1737730
User impact if declined: list of attachments isn't printed when printing >1 message
Testing completed (on c-c, etc.): landed yesterday
Risk to taking this patch (and alternatives if risky): low

Comment on attachment 9251256 [details] [diff] [review]
1741282-print-attachments.diff

[Triage Comment]
Approved for beta

Comment on attachment 9251256 [details] [diff] [review]
1741282-print-attachments.diff

[Triage Comment]
I noticed a regression from this. Reply/forward of all mails having attachments (e.g. eml or pgp keys) adds an Attachment section at the bottom of the quote. This is quite ugly.

Backout: https://hg.mozilla.org/comm-central/rev/760f0d59da16e12b499feb75855c05a68af58862

We only see the unwanted attachment list inside the quote, not for forward. This hunk should take care of this issue:
https://github.com/Betterbird/thunderbird-patches/blob/6eb66c74152edf9a4800a17a1f5dc75a383c2fe2/91/bugs/1737730-attachment-list-printing.patch#L52

Retesting, it does seem only replies were affected yes.

Please don't forget to change the bug number in the patch.

Pushed by geoff@darktrojan.net:
https://hg.mozilla.org/comm-central/rev/1b456c77c279
Always output the attachment list for printing, even if message isn't displayed. r=darktrojan

Comment on attachment 9252210 [details] [diff] [review]
1741282-print-attachments-3.diff

[Approval Request Comment]
Regression caused by (bug #): bug 1737730 but part of a bigger regression really
User impact if declined: attachment list doesn't get printed
Testing completed (on c-c, etc.): landed today
Risk to taking this patch (and alternatives if risky): moderate

Comment on attachment 9252210 [details] [diff] [review]
1741282-print-attachments-3.diff

[Triage Comment]
Approved for beta (even with moderate risk)

Thunderbird 95.0b5:
https://hg.mozilla.org/releases/comm-beta/rev/c72b4db955da

Comment on attachment 9252210 [details] [diff] [review]
1741282-print-attachments-3.diff

[Triage Comment]
Approved for esr91 (beta doesn't ship till tomorrow, but let's be optimistic - if it doesn't work out we can backout and rebuild)

Thunderbird 91.4.0:
https://hg.mozilla.org/releases/comm-esr91/rev/05fcc2ddf05f

Verified in testing 91.4.0 and 95.0b5 on Windows 10 and Fedora 35 Workstation Linux.