[Kde-pim] Running KMail and calling via D-Bus

[Thomas McGuire]

Hi,

On Tuesday 04 August 2009 02:55:35 you wrote:
> On Sunday 02 August 2009 16:56:46 Volker Krause wrote:
> > On Sunday 02 August 2009 13:30:31 David Jarvie wrote:
> > > Can anybody help resolve this D-Bus problem with KMail?
> > >
> > > KAlarm has functions to invoke KMail and issue a D-Bus call to show a
> > > mail. The problem is that if KMail isn't already running, the D-Bus
> > > call doesn't work when called immediately after starting up KMail,
> > > since the relevant D-Bus interface is not immediately available. I've
> > > experimented with various tweaks, and compared the code to other places
> > > in kdepim, but still can't think of any other way of doing it except to
> > > introduce timer-based calls to wait for the D- Bus interface to become
> > > active. Yet other applications (KOrganizer etc) don't seem to have this
> > > problem (or do they just ignore it?).
> >
> > IIRC KDBusServiceStarter is used there, not sure if that really waits
> > until the corresponding service is available though. If you want to be
> > really sure that KMail has been started, listening to the
> > serviceOwnerChanged() signal might help.
>
> Thanks Volker. That helps, but even when that signal is received, the
> actual interface isn't necessarily available yet, so it still looks as if
> it's necessary to do a few timer delays.

I had the same problem with the Kolab resource, which needs a special 
interface to show up to work.
What I did to solve that was a introducing a nasty hack: After I created that 
interface in KMail, I added a dummy D-Bus service "org.kde.kmail.groupware". 
This way, I then use Qt to see if the org.kde.kmail.groupware service is up, 
which in turn also means my groupware interface/object is ready.
Not a nice solution though. The code is in 
KMailConnection::waitForGroupwareObject() in 
kdepim/kresources/kolab/shared/kmailconnection.cpp.

I think there is a similar problem with the "Open in Addressbook" function in 
KMail. which opens kaddressbook,

Regards,
Thomas
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