Plasma newbie questions and API fuzzyness (perhaps)

[Dmitry Suzdalev]

On Thursday 20 March 2008 19:52:08 Aaron J. Seigo wrote:
> i've add this clarification to the apidox for
> DataEngine::connectAllSources.
Nice! Thank you.

> i'm not sure we want or need this method to connect all sources that ever
> get created, though. connectAllSources is really just a convenience method
> to avoid having to loop over all sources and calling connectSource on each.
I agree. But still this should be clarified in docs, so people like me would 
understand that right away :)

> > NotifierApplet::sourceAdded: source "notification 1" added
> > NotifierApplet::dataUpdated: source "notification 1" changed
> > NotifierApplet::sourceRemoved: source "notification 1" removed
> > NotificationsEngine::notify: data was set
> > NotifierApplet::dataUpdated: source "notification 1" changed
>
> impossible to say without seeing all of your code. there are  3 ways that
> sourceRemoved can be triggered:
>
> * the number of sources limit was exceeded (if you aren't calling
> setSourceLimit in your code, that isn't it)
not the case

> * removeSource or clearSources is being called in your engine
no way :)

> * the applet is disconnecting from the source at some point and the source
> was created on demand (in sourceRequested) dropping the usage count to 0.
no, the only place i do something with the source in the engine is the 
'setData' call which I shown in the previous mail.

The code is very simple - in applet there are three slots reacting on 
dataUpdated, sourceAdded, sourceRemoved. They just print kdebug, and the 
sourceAdded connects source.
Engine is created in applet's init() method by calling dataEngine("name");

Engine does setData in one of its methods which i trigger from outside using 
dbus call.

That's the scheme.
Really simple.

I can commit it to playground (aseigo: that's notifications-related work i 
started) - I am just not sure if applets/engines at such an early state of 
development are allowed to be in playground/base/plasma :)

Cheers,
Dmitry.
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