public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var viewModel = (BookInfoPageViewModel) value;
if (viewModel.Book != null)
{
var converter = new BookImagePathToSourceConverter();
return converter.Convert(viewModel.Book, targetType, true, culture);
}
return new TaskCompletionNotifier<BitmapImage>(Task.Run(async () =>
{
var taskCompletionSource = new TaskCompletionSource<BitmapImage>();
Execute.OnUIThread(() => taskCompletionSource.SetResult(viewModel.ImageUrl != null
? new BitmapImage(viewModel.ImageUrl)
: null));
return await taskCompletionSource.Task;
}));
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var viewModel = (BookInfoPageViewModel)value;
if (viewModel.Book != null)
{
var converter = new BookImagePathToSourceConverter();
return(converter.Convert(viewModel.Book, targetType, true, culture));
}
return(new TaskCompletionNotifier <BitmapImage>(Task.Run(async() =>
{
var taskCompletionSource = new TaskCompletionSource <BitmapImage>();
Execute.OnUIThread(() => taskCompletionSource.SetResult(viewModel.ImageUrl != null
? new BitmapImage(viewModel.ImageUrl)
: null));
return await taskCompletionSource.Task;
})));
}