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Home » Eclipse Projects » Eclipse Platform » Best way to listen to context activation/deactivation
Best way to listen to context activation/deactivation [message #337069] Sun, 26 July 2009 00:32 Go to next message
Josh M is currently offline Josh MFriend
Messages: 22
Registered: July 2009
Junior Member
Hello! I have defined a number of 'org.eclipse.ui.contexts' and wish to
have parts of my application respond to when these contexts change from
active and inactive states.

The best I can come up with so far is adding an IContextManagerListener to
IContextService via addContextManagerListener, and then deducing which
context have changed through the ContextManagerEvent (specifically
ContextManagerEvent .getContextManager.getActiveContextIds() and

Is this the best way to do this? Seems like things could get a little
inefficient especially when trying to deduce which context has been

Thanks for any help you can provide!
Re: Best way to listen to context activation/deactivation [message #452925 is a reply to message #337069] Sat, 01 August 2009 14:25 Go to previous message
Paul Webster is currently offline Paul WebsterFriend
Messages: 6859
Registered: July 2009
Location: Ottawa
Senior Member

Yes, that's what you need to do. Make copies of the 2 sets and use retainAll and removeAll.


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