[sugar] [PATCH] Update only when visible (Journal)

[Simon Schampijer]

Hi Tomeu,

Patch looks great and should really be an improvement. Not sure we need the debug 
messages for the timers logging.debug('Remove date updating timer').

As a general note running a pylint for the journal would be nice as well (should do 
that for the browse now as well :). Though pylint output is not perfect yet it 
improves quality a bit.

r+
    Simon


Tomeu Vizoso wrote:
> Hi,
> 
> during activity launching, a new journal entry is created. As the
> journal is listening for changes in the DS and updating its UI
> accordingly, if that update operation is costly in terms of CPU, the
> activity startup process can be affected.
> 
> This patch avoids the journal updating itself when it is not the
> active activity, and in tests with 3500 entries, I saw a saving of 3s.
> during activity startup.
> 
> Thanks,
> 
> Tomeu
> 
> 
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