Qt: add an exit notification on client shutdown #1914

• this extends the persistent tray icon until shutdown is complete, to ensure users wait before trying to restart the client

I agree that it could be useful to show that it's still doing something while shutting down, to prevent the user from shutting down his computer while it's busy.

However, I'm not sure a notification is the right thing to do here. After all, we can't reliably control how long it is shown.

Well it is shown as long as it takes to shutdown the client, which is a behaviour I like. When there is some DB work to do before we can shutdown, you clearly see the client is still working in the background. A quick shutdown means you just see this flash up and disappear.

Did you try / test the patch?

Automatic sanity-testing: PASSED, see http://jenkins.bluematt.me/pull-tester/5805b5a8447ea40ac30e92c895fd21ddace1e020 for binaries and test log.

I tried to test this, but shutdown is too quick to see anything. What should happen?

It should show a tray-notification (dunno how such a thing is called with Linux) as long as the client is shuting-down I found out, that after your Ultraprune-patch, the client is shuting down much more quickly than before, so perhaps this patch doesn't make sense anymore.

The problem is that notification behavior is OS dependent. On some OSes it might show until the program terminates, on others it may be gone before that, and on still others it could linger after the program died.

I'll close this one, you are right.