[TYPO3-dev] custom navigation components - need some pointers

[Franz Koch]

Hey folks,

I'm trying to implement a custom navigation component for my extbase 
based backend modules using 6.2. I already registered my component, 
created the file structure and it's loaded correctly. One thing I 
haven't figured out yet though is how I can force it to reload/update 
when I switch from one backend module to another (which events do I have 
to register to), while both use the same component (but with different 
data I have to load).

Could you give me some pointers? I tried digging the core docs, the 
source and googled, but I'm a bit lost right now. Thanks.

And I'd appreciate if somebody could give me an example on how to add a 
category tree to that nav component (using a custom data provider). I 
tried a couple of things but already struggled on how to correctly setup 
the ExtJS viewport (I'd like to show the tree inside a tab).

Thanks in advance.

-- 
kind regards,
Franz Koch