Mir

Code review comment for lp:~robertcarr/mir/alpha-for-nested-servers

Michael Terry (mterry) wrote :

> What exactly does the greeter need to do?
> Is per-surface opacity not enough for our use case?

The greeter wants to be able to show parts of the session behind it. (i.e. you swipe greeter away from the right, you see your session waiting for you) It's likely the greeter will be implemented as a mirserver. If it was just a mirclient, per-surface opacity would be enough. But each mirserver draws its back as black, so you can't stack mirservers with partial opacity.

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