private void EvaluatePageState(PageTurnEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException("e");
}
// Calculate current page
if (e.Direction == NavigationDirection.Forward)
{
this.currentPage = this.bookPages[e.Page.Index + 1];
}
else
{
if (e.Page.Index != 1)
{
this.currentPage = this.bookPages[e.Page.Index - 2];
}
else
{
this.currentPage = this.bookPages[0];
}
}
// Set navigation parameters
if (this.currentPage.Type == PageType.Interactive)
{
SelectGameType(this.currentPage);
CanNavigateToNextPage = false;
IsInteractivePage = true;
}
else if (this.currentPage.Type == PageType.Soft ||
this.currentPage.Type == PageType.FrontCover ||
this.currentPage.Type == PageType.Blank)
{
CanNavigateToNextPage = true;
IsInteractivePage = false;
}
// Always can go back
CanNavigateToPreviousPage = true;
}
/// <summary>
/// Invoked when the PageTurnedCommand is executed.
/// </summary>
/// <param name="e"></param>
private void OnPageTurned(RoutedEventArgs e)
{
PageTurnEventArgs pageFlipEventArgs = e as PageTurnEventArgs;
EvaluatePageState(pageFlipEventArgs);
}
