ApplicationState oldState = pageStates.get(pageStates.size() - 1);
// The current ApplicationState should now be neutered and no longer
// receive updates. It should also transfer relevant old state to the new
// ApplicationState.
oldState.detachModelsFromDispatchers();
newState.setFirstDomainValue(nav.getTime());
newState.setLastDomainValue(nav.getTime()
+ Constants.DEFAULT_GRAPH_WINDOW_SIZE);