public void OnDirectionChanged(Direction oldDirection, Direction newDirection)
{
if (Bookshelf == null || Book3D == null)
{
throw new ArgumentException("bookshelf and book3d arguments cannot be null");
}
if (newDirection == Direction.Center)
{
LastNextBook3D = NextBook3D;
NextBook3D = Book3D;
SwipeMode = SwipeMode.Book;
}
else
{
if (NextBook3D != null && NextBook3D.Model != null)
{
NextBook3D.Visibility = true;
}
NextBookIndex = Bookshelf.Books3D.Items.IndexOf(Book3D);
if (newDirection == Direction.Left)
{
NextBookIndex--;
}
if (newDirection == Direction.Right)
{
NextBookIndex++;
}
if (NextBookIndex > 0 && NextBookIndex < Bookshelf.Books3D.Items.Count &&
Bookshelf.Books3D.Items.ElementAt(NextBookIndex).Model != null)
{
SwipeMode = SwipeMode.Book;
NextBook3D = (Book3DViewModel)Bookshelf.Books3D.Items.ElementAt(NextBookIndex);
}
else
{
SwipeMode = SwipeMode.Shelf;
}
}
if (SwipeMode == SwipeMode.Book)
{
var book = HBS.CreateBook(NextBook3D);
openBookTransition = new OpenBookTransition(NextBook3D, book);
//only left or right would actually open a new book
if (newDirection != Direction.Center)
{
openBookTransition.OnTransitionStarting();
}
activeTransition = openBookTransition;
}
if (SwipeMode == SwipeMode.Shelf)
{
activeTransition = new ShelfSwipeTransition(HBS.ViewModel.ShelfViewModel);
HBS.ViewModel.BookFlyout3dVM.Visibility = false;
}
}
public void HandleIntent(Intent intent)
{
if (HBS.ViewModel.Opened.BookVM.Book == null && !HBS.IsAnimating)
{
var Book3D = intent.GetExtra <Book3DViewModel>("book3D");
var book = HBS.CreateBook(Book3D);
Transition.Animate(new OpenBookTransition(Book3D, book), 1, HBS.AnimationSeconds, HBS.AnimationEaseInOut);
}
}