DNAPhotoViewController NewPhotoViewController(NSPhoto photo)
{
if (photo != null)
{
UIView loadingView = null;
if (((NSObject)Delegate).RespondsToSelector(new Selector("photosViewController:loadingViewForPhoto:")))
{
loadingView = Delegate.LoadingViewForPhoto(this, photo);
}
var photoViewController = new DNAPhotoViewController(photo, loadingView, _notificationCenter);
photoViewController.Delegate = this;
SingleTapGestureRecognizer.RequireGestureRecognizerToFail(photoViewController.DoubleTapGestureRecognizer);
if (((NSObject)Delegate).RespondsToSelector(new Selector("photosViewController:maximumZoomScaleForPhoto:")))
{
var maximumZoomScale = Delegate.MaximumZoomScaleForPhoto(this, photo);
photoViewController.ScalingImageView.MaximumZoomScale = maximumZoomScale;
}
return(photoViewController);
}
return(null);
}
void DidNavigateToPhoto(NSPhoto photo)
{
if (((NSObject)Delegate).RespondsToSelector(new Selector("photosViewController:didNavigateToPhoto:atIndex:")))
{
Delegate.DidNavigateToPhotoAtIndex(this, photo, DataSource.IndexOfPhoto(photo));
}
NSNotificationCenter.DefaultCenter.PostNotificationName(PhotosViewControllerDidNavigateToPhotoNotification, this);
}
public DNAPhotosViewController(IDNAPhotoViewerDataSource dataSource, NSPhoto initialPhoto = null, IDNAPhotosViewControllerDelegate _delegate = null)
{
if (initialPhoto == null)
{
initialPhoto = dataSource.PhotoAtIndex(0);
}
Initialize(dataSource, initialPhoto, _delegate);
}
void DisplayPhoto(NSPhoto photo, bool animated)
{
if (DataSource.IndexOfPhoto(photo) == -1)
{
return;
}
var photoViewController = NewPhotoViewController(photo);
SetCurrentlyDisplayedViewController(photoViewController, animated);
UpdateOverlayInformation();
}
void UpdatePhoto(NSPhoto photo)
{
if (DataSource.IndexOfPhoto(photo) == -1)
{
return;
}
_notificationCenter.PostNotificationName(Constants.DNAPhotoViewControllerPhotoImageUpdatedNotification, photo);
if (CurrentlyDisplayedPhoto.Equals(photo))
{
UpdateOverlayInformation();
}
}
void ReloadPhotos(bool animated)
{
NSPhoto newCurrentPhoto = null;
if (DataSource.IndexOfPhoto(CurrentlyDisplayedPhoto) != -1)
{
newCurrentPhoto = CurrentlyDisplayedPhoto;
}
else
{
newCurrentPhoto = DataSource.PhotoAtIndex(0);
}
DisplayPhoto(newCurrentPhoto, animated);
if (OverlayView.Hidden)
{
SetOverlayViewHidden(false, animated);
}
}
void Initialize(IDNAPhotoViewerDataSource dataSource, NSPhoto initialPhoto, IDNAPhotosViewControllerDelegate _delegate = null)
{
DataSource = dataSource;
Delegate = _delegate;
InitialPhoto = initialPhoto;
PanGestureRecognizer = new UIPanGestureRecognizer(this, new Selector("didPanWithGestureRecognizer:"));
SingleTapGestureRecognizer = new UITapGestureRecognizer(this, new Selector("didSingleTapWithGestureRecognizer:"));
TransitionController = new DNAPhotoTransitionController();
ModalPresentationStyle = UIModalPresentationStyle.Custom;
TransitioningDelegate = TransitionController;
ModalPresentationCapturesStatusBarAppearance = true;
OverlayView = SetUpOverlayView();
_notificationCenter = new NSNotificationCenter();
PageViewController = new UIPageViewController(UIPageViewControllerTransitionStyle.Scroll, UIPageViewControllerNavigationOrientation.Horizontal, new NSDictionary());
PageViewController.Delegate = this;
PageViewController.DataSource = this;
}
void Initialize(NSPhoto photo, UIView loadingView, NSNotificationCenter notificationCenter)
{
_photo = photo;
if (photo.ImageData != null)
{
ScalingImageView = new DNAScalingImageView(photo.ImageData, CGRect.Empty);
}
else
{
var photoImage = (photo.Image != null) ? photo.Image : photo.PlaceholderImage;
ScalingImageView = new DNAScalingImageView(photoImage, CGRect.Empty);
if (photoImage == null)
{
SetUpLoadingView(loadingView);
}
}
ScalingImageView.Delegate = this;
_notificationCenter = notificationCenter;
SetUpGestureRecognizers();
}
public nint IndexOfPhoto(NSPhoto photo)
{
return(Photos.IndexOf(photo));
}
public DNAPhotoViewController(NSPhoto photo, UIView loadingView, NSNotificationCenter notificationCenter) : base(null, null)
{
Initialize(photo, loadingView, notificationCenter);
}
public DNAPhotoViewerSinglePhotoDataSource(NSPhoto photo)
{
Photo = photo;
}
public nint IndexOfPhoto(NSPhoto photo)
{
return(0);
}