public MainPage()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(MainPage_Loaded);
this.BackKeyPress += new EventHandler<System.ComponentModel.CancelEventArgs>(MainPage_BackKeyPress);
//If the token is not found, we route to the login-page on load
TryInitializeAccessToken();
bookListVM = new BookListViewModel();
this.DataContext = bookListVM;
}
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
string navigatedUri = e.Uri.ToString();
if (navigatedUri.Contains("from_login=true"))
{
//Remove login page(s) from back-stack - home should be the first page
while(NavigationService.CanGoBack)
NavigationService.RemoveBackEntry();
}
if (viewModelsInvalidated)
{
//We do not restore state but refresh on reactivations
bookListVM = new BookListViewModel();
booksPanoramaItem.DataContext = bookListVM;
collectionsVM = new CollectionsViewModel();
collectionsPanoramaItem.DataContext = collectionsVM;
viewModelsInvalidated = false;
}
cancel = new CancellationTokenSource();
//Load UI
LoadBooksPanoramaItem();
LoadCollectionsPanoramaItem();
}
