Re: [Printing-architecture] Firefox 103 supports temporary queues!

To complete my findings, I've tested Firefox with my network printer and 
with virtual device shared via mDNS from snapped ps-printer-app, because 
I've been at home office since yesterday due cold. I'll test 
ipp-over-usb device once I get to the office next week, but IMO it will 
work the same way as virtual device from ps-printer-app.


Zdenek

On 8/5/22 10:29, Zdenek Dohnal wrote:
> On 8/4/22 17:06, Till Kamppeter wrote:
>> Thanks for the info, but I have Firefox 103 on Ubuntu 22.04, in Snap 
>> format:
>
> As a starting point of every debugging, I would remove any additional 
> layers which can cause issues - in this case, try to reproduce with 
> Firefox via .deb packages, not via Snap.
>
> There can be some discrepancies which will have to adjusted regarding 
> snapped firefox, since the development was probably tested only on 
> .rpm/.deb.
>
>>
>> $ snap list | grep firefox
>>
>> firefox                            103.0-1 1589 latest/stable     
>> mozilla**             -
>>
>> $
>>
>>
>>
>> I connect the "cups-control" interface (Snap is not yet switched over 
>> to the new "cups" interface):
>>
>> $ sudo snap connect firefox:cups-control
>>
>> $
>>
>> And in Firofox' own print dialog I see only the permanent queues, the 
>> same as I get with "lpstat -v".
>>
>> Can it be that RedHat has applied a distro patch to fix the print 
>> dialog? If yes, could you make this patch available?
>
> Nope, complete vanilla Firefox 103.0.1 regarding CUPS or IPP support - 
> no mention about cups or ipp in the current downstream patches (when I 
> wrote the email yesterday, I thought it is basic 103.0 according to 
> messages on PR https://hg.mozilla.org/mozilla-central/rev/b7bc35cb4c89 
> , bug https://bugzilla.mozilla.org/show_bug.cgi?id=1771500 - but I 
> haven't check the exact version till today, and it is 103.0.1 - maybe 
> there were some changes?). Maybe Canonical has some patches in Firefox 
> reverts/breaks the feature?
>
> Does CUPS in SNAP have the patch you've sent to CUPS project regarding 
> resolving hostnames in CUPS?
>
> Either way, all possible downstream patches for Firefox are public 
> here - https://src.fedoraproject.org/rpms/firefox/tree/f36 . None of 
> them look connected to printing.
>
>
> Zdenek
>
>>
>>    Till
>>
>>
>> On 04/08/2022 16:24, Zdenek Dohnal wrote:
>>> Hi all,
>>>
>>> I'm happy to announce that Firefox 103 has started to show temporary 
>>> queues in their own print dialog and printing via them works (at 
>>> least on Fedora).
>>>
>>> Feel free to test/leave feedback what to improve! I'll pass the 
>>> feedback to Firefox upstream people from Fedora community.
>>>
>>> I'm glad the another application added temporary queue support, 
>>> which brings us closer to CUPS 3.0 :)
>>>
>>>
>>> Zdenek
>>>
>>
-- 
Zdenek Dohnal
Software Engineer
Red Hat, BRQ-TPBC