Thank you. On Thursday, August 8, 2013 1:05:12 PM UTC-7, Jens wrote: > > You need to cache the activity that displays the 3rd party app so it does > not get recreated in your ActivityMapper each time you navigate inside the > 3rd party app. So your URLs should look like > > /#ThirdPartyAppPlace:app=page1 > /#ThirdPartyAppPlace:app=page2¶m=x > /#ThirdPartyAppPlace:app=page3 > > and for each URL the same activity instance should be returned. You could > either code this caching into your AppActivityMapper directly or use GWT's > CachingActivityMapper together with GWT's FilteredActivityMapper to keep > your AppActivityMapper clean. If you choose to use GWT's ActivityMappers > you must implement hashcode/equals for your place because > CachingActivityMapper uses currentPlace.equals(newPlace) to determine if > the cached activity can be returned. > > At the end you will have something like new FilteredActivityMapper(filter, > new CachingActivityMapper(new AppActivityMapper()); where "filter" > transforms all your ThirdPartyAppPlaces to an empty ThirdPartyAppPlace so > that CachingActivityMapper always sees equal places. Whenever the > CachingActivityMapper sees different places, it will ask your > AppActivityMapper for the new activity. > > -- J. >
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