ubuntu-phone team mailing list archive

[Thomas Voß <thomas.voss@xxxxxxxxxxxxx>]

On Fri, Mar 7, 2014 at 11:39 AM, Matthew Paul Thomas <mpt@xxxxxxxxxxxxx> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Sebastien Bacher wrote on 06/03/14 18:08:
>>
>> Le 06/03/2014 19:02, Marc Deslauriers a écrit :
>>>
>>> Wouldn't a better design be to have the lock screen in the
>>> user's session? That way each user can have their own lock
>>> screen, and it can access the user's data without any security
>>> issue and difficulty in transferring data between different
>>> security contexts...
>>
>> That' what we have been doing so far (on desktop), it has those
>> advantages but also issues:
>>
>> - you get 2 codebases to maintain
>>
>> - you can't do user switching on the lock screen, so you need to
>> to support bouncing users between those
>>
>> - design suggested the user experience is more confusing (mostly
>> because you have similar screens with small difference and it's
>> not obvious why that)
>>
>> ...
>
> I think that's because this was considered mainly as a visual design
> problem: "these two screens look roughly the same, let's make them
> exactly the same".
>
> But they behave very differently: music should keep playing at the
> lock screen but not the greeter, the camera and mic should keep
> recording at the lock screen but not the greeter, Touch apps may allow
> limited access at the lock screen but not the greeter, your preferred
> keyboard layout should persist at the lock screen but not the greeter,
> screen magnification should persist at the lock screen but not the
> greeter, and so on.
>
> Things that behave different should look different, which leads to the
> conclusion that the lock screen shouldn't look like the greeter after all.
>

That's interesting. With the lock screen as part of the session, we
would not need to surface information up to the greeter.

@Matthew: Is anyone assigned to the lockscreen work for the
phone/tablet right now?

Thomas

> (This reminds me of the logic "snap decision dialogs look roughly like
> notification bubbles, let's implement them in the notification
> system", which has led to similar poor containment, e.g. Unity8 having
> to contain knowledge about the format of SIM PINs.)
>
> - --
> mpt
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.14 (GNU/Linux)
> Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
>
> iEYEARECAAYFAlMZodsACgkQ6PUxNfU6eco2MwCgqXka223UGmasgrFZYLqYnwtR
> 2IMAoKzEHt30qCNneCvQigng2kfCWgjD
> =BCKY
> -----END PGP SIGNATURE-----
>
> --
> Mailing list: https://launchpad.net/~ubuntu-phone
> Post to     : ubuntu-phone@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~ubuntu-phone
> More help   : https://help.launchpad.net/ListHelp