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List:       kmail-devel
Subject:    Re: Blue scary screen
From:       Don Sanders <sanders () kde ! org>
Date:       2005-12-16 1:38:38
Message-ID: 200512161138.38923.sanders () kde ! org
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On Thursday 15 December 2005 18:42, Martijn Klingens wrote:
> On Wednesday 14 December 2005 23:52, Tom Albers wrote:
> > The blue screen which appears when selecting folders shows up on
> > whenever I switch to another folder. When I'm home or at work
> > does not make a difference, it is on every single change.  I can
> > not start to explain how irritating this behaviour is.
>
> I added this feature in Achtmaal after some talk with Ingo and
> Thomas, and for me it has always worked as intended: it only shows
> up if fetching mail from an IMAP folder takes more than a second.
> Admittedly, for t < splashDelay + 1 you would see the splash itself
> for less than a second. There is no easy way too avoid that, apart
> from artificially delaying the hiding of the splash so it has been
> visible at least a second.
>
> It might not be the perfect solution to handle the problem of
> communicating status to the user, but it was by *far* the easiest
> one to implement. I do have an idea that might work better, but it
> will require quite a lot of code, so it's somewhat unlikely it will
> ever see the light of day.
>
> > I'm not sure how this has improved usability in any way, but
> > discussing that will not be very productive. I'ld like to know if
> > attached patch is acceptable.
>
> I'd say it's not. 1 second is already quite a lot for user
> feedback, in general GUIs should respond even sooner, but since
> there's the progress thingy in the status bar that's acceptable
> enough. Plus, raising it to any arbitrary amount will not solve the
> fundamental problem that if the operation is finished shortly after
> it will appear to be flicker.
>
> There is btw a true bug in the code somewhere that wasn't there in
> Achtmaal. I've been using a KMail snapshot from back then for
> months (!) without any problems, but since upgrading to 3.5 branch
> I occasionally hit a race condition where the splash appears but
> doesn't hide anymore. The trigger seems to be switching folders
> when the splash is visible but about to hide, but I haven't
> investigated yet. As I said, that wasn't in the original codebase,
> something must have changed elsewhere.

I'm seeing this occassionally in a check out from late August. So it 
may have been around for awhile. It does feel like a race condition.

Switching to another folder and back seems to be away to work around 
the problem.

Don Sanders.
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