QML/C++ interaction

[Willem Ferguson]

Dirk,
I am looking at the implementation, from the QML side, of the class 
named "downloadManager" at the moment. In the Subsurface-mobile, the QML 
drives the whole process and the coordination and linkages, 
consequently, has to be from the QML side. One of the critical thing 
Tomaz has pointed out is the need for setting the context of C++ items 
used by QML.

1) From what I can see, the root context is set in 
subsurface-mobile-helper.cpp. Since it looks like the context 
definitions must be finalised before the QML engine is launched, is it 
that subsurface-mobile-helper.cpp is the appropriate place to set the 
context definitions? I see some context definitions in filebrowser.cpp 
in Plasma-Mobile which would contradict the above statement.

2) This brings up the question of where the most appropriate place is to 
launch "downloadManager". Since downloadManager should ideally only be 
loaded when downloads are actually done, I cannot see that 
subsurface-mobile-helper.cpp (where the QML engine is launched) is very 
appropriate. I would say that the closest place is QMLManager.

3) But if this were the case, then the question is how the context 
definitions should be handled because the QML machine is not launched in 
QMLManager.
Any comments would be very valuable,
Kind regards,
willem