public MainPageViewModel(INavigationService navigationService,
ISessionStateService sessionStateService,
NewsListViewModel newsListViewModel,
FictionListViewModel fictionListViewModel,
AuthorsListViewModel authorsListViewModel,
CommonViewModel commonViewModel)
{
_sessionStateService = sessionStateService;
_fictionListViewModel = fictionListViewModel;
_navigationService = navigationService;
_authorsListViewModel = authorsListViewModel;
_newsListViewModel = newsListViewModel;
_commonViewModel = commonViewModel;
ViewDetailsCommand = new DelegateCommand <NewsItem>(ViewDetailsExecute);
RefreshTabCommand = new DelegateCommand(RefreshExecute);
}
