[Development] Ref-counted quit

[Thiago Macieira]

On Friday, 30 de December de 2011 08.12.58, Stephen Kelly wrote:
> As the current API is a low-level API, you can put any front-end API you
> wish on top as an alternative. I'm not convinced that would solve any
> problems though. I don't think you've proposed a concrete enough front-end
> API to evaluate.

No, because I was trying to collect the use-cases first.

> > To fix the front-end API we need to find out what the use-cases are that
> > we're trying to solve. So far, I've only heard one: preventing an
> > application from quitting while it has out-of-process windows open.
> 
> We have been discussing other use cases for some time.
> 
> There's also the non-gui Akonadi case (which is running many jobs which are
> of no interest to the user), and the case the cleanup cases aseigo brought
> up on the review request.

I've reported a few bugs[1][2][3] today against KMail and Akonadi that are 
directly or indirectly connected to background jobs. I didn't do this on 
spite: it's just that today is January 1st, which is my yearly "archive the 
emails" day. Those are the issues I've run into today and I simply decided to 
report, as they included data loss.

So colour me biased if you want. I am discarding "non-gui jobs" as a valid 
use-case.

> > Are there more?
> > 
> > If there are not, then we can create an API for that one use-case.
> 
> Can you propose an API that satisfies all available use-cases so far?

We only have remaining the out-of-process window. So the API I'd propose is 
similar to that of a QWindow, similar to that of an QX11EmbedContainer too. If 
you open a window in a certain way and you manage that, then keeping track of 
windows that are not in your process should be similar.


[1] https://bugs.kde.org/show_bug.cgi?id=290316
[2] https://bugs.kde.org/show_bug.cgi?id=290317
[3] https://bugs.kde.org/show_bug.cgi?id=290363
-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center
     Intel Sweden AB - Registration Number: 556189-6027
     Knarrarnäsgatan 15, 164 40 Kista, Stockholm, Sweden
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