consoles: Allow configuring VNC

[mvollmer]

Via the "Consoles" card, when the machine is off.

This is the minimum to get #1795 finished, IMO, and we should not try to do more. Anything on top happens in #1972 and elsewhere, at its own pace.

[mvollmer]

There is more work to be done here, of course:

• Optional password reveal in the dialogs.
• Explicit option to select "auto" for the port instead of having to input -1.
• Input validation in the dialogs, e.g. check if address is valid, check if port is in the required range
• Wording change, I think it should be "Listening address" instead of "VNC address", etc, since we are configuring the server, not the client.
• tests, coverage

[garrett]

Can you add a screenshot of the current status please? Thanks!

[mvollmer]

Can you add a screenshot of the current status please? Thanks!

Yes! Thanks for having a look @garrett!

A runing virtual machine looks and behaves exactly like before. The console card of a not running machine has details about VNC.

Machine without VNC:

Machine with default VNC:

Machine with custom VNC:

Dialog for editing the VNC config:

Dialog for adding VNC:

(None of the above is meant to be final, of course.)

[garrett]

Thanks for adding the screenshots! I like what I'm seeing so far.

(None of the above is meant to be final, of course.)

It looks like a great start though, and I think it can be banged into resembling the mockups for this. Thanks again for picking up the work on Machines!

[mvollmer]

I think it can be banged into resembling the mockups for this.

I think I didn't see any mockups of a stopped machine, hmm. Is this mockup also meant for stopped machines?