Merge pull request #303 from kitwtnb/fix-build-error-for-main-actor-isolation

Fix build error for MainActor isolation.

Lightbox.podspec

@@ -13,7 +13,6 @@ Pod::Spec.new do |s|
   s.ios.resource = 'Resources/Lightbox.bundle'
 
   s.frameworks = 'UIKit', 'AVFoundation', 'AVKit'
-  s.dependency 'Imaginary', '~> 5.0.0'
   s.swift_version = '5.0'
 
 end

Lightbox.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 46;
+	objectVersion = 52;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -14,11 +14,9 @@
 		44E6A65C2495BFD400543CF0 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 44E6A65B2495BFD400543CF0 /* ViewController.swift */; };
 		44E6A6652495C0EB00543CF0 /* Lightbox.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D523B0A91C43AA2A001AD1EC /* Lightbox.framework */; };
 		44E6A6662495C0EB00543CF0 /* Lightbox.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = D523B0A91C43AA2A001AD1EC /* Lightbox.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
-		44E6A66A2495C13F00543CF0 /* Imaginary.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D2A58F5D1F7943A30064F14E /* Imaginary.framework */; };
-		44E6A66B2495C13F00543CF0 /* Imaginary.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = D2A58F5D1F7943A30064F14E /* Imaginary.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
+		85CB007027B16C6900A47BB3 /* SDWebImage in Frameworks */ = {isa = PBXBuildFile; productRef = 85CB006F27B16C6900A47BB3 /* SDWebImage */; };
 		D22006741DFB4D9700E92898 /* Lightbox.bundle in Resources */ = {isa = PBXBuildFile; fileRef = D22006731DFB4D9700E92898 /* Lightbox.bundle */; };
 		D2258CC4215CD035005A9A1C /* Color+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = D2258CC3215CD035005A9A1C /* Color+Extensions.swift */; };
-		D2A58F5E1F7943A30064F14E /* Imaginary.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D2A58F5D1F7943A30064F14E /* Imaginary.framework */; };
 		D2D71BBC1D54DA77006AB907 /* AssetManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = D2D71BBB1D54DA77006AB907 /* AssetManager.swift */; };
 		D5026B3C1C5BF3FD003BC1A3 /* LightboxImage.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5026B3B1C5BF3FD003BC1A3 /* LightboxImage.swift */; };
 		D523B0BD1C43AA8B001AD1EC /* LightboxConfig.swift in Sources */ = {isa = PBXBuildFile; fileRef = D523B0B61C43AA8A001AD1EC /* LightboxConfig.swift */; };
@@ -50,7 +48,6 @@
 			dstPath = "";
 			dstSubfolderSpec = 10;
 			files = (
-				44E6A66B2495C13F00543CF0 /* Imaginary.framework in Embed Frameworks */,
 				44E6A6662495C0EB00543CF0 /* Lightbox.framework in Embed Frameworks */,
 			);
 			name = "Embed Frameworks";
@@ -68,7 +65,6 @@
 		44E6A65B2495BFD400543CF0 /* ViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
 		D22006731DFB4D9700E92898 /* Lightbox.bundle */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.plug-in"; path = Lightbox.bundle; sourceTree = "<group>"; };
 		D2258CC3215CD035005A9A1C /* Color+Extensions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Color+Extensions.swift"; sourceTree = "<group>"; };
-		D2A58F5D1F7943A30064F14E /* Imaginary.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Imaginary.framework; path = Carthage/Build/iOS/Imaginary.framework; sourceTree = "<group>"; };
 		D2D71BBB1D54DA77006AB907 /* AssetManager.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AssetManager.swift; sourceTree = "<group>"; };
 		D5026B3B1C5BF3FD003BC1A3 /* LightboxImage.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LightboxImage.swift; sourceTree = "<group>"; };
 		D523B0A91C43AA2A001AD1EC /* Lightbox.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Lightbox.framework; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -90,7 +86,6 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				44E6A66A2495C13F00543CF0 /* Imaginary.framework in Frameworks */,
 				44E6A6652495C0EB00543CF0 /* Lightbox.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -99,7 +94,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				D2A58F5E1F7943A30064F14E /* Imaginary.framework in Frameworks */,
+				85CB007027B16C6900A47BB3 /* SDWebImage in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -129,7 +124,6 @@
 		D2A58F5C1F7943A30064F14E /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
-				D2A58F5D1F7943A30064F14E /* Imaginary.framework */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";
@@ -248,6 +242,9 @@
 			dependencies = (
 			);
 			name = "Lightbox-iOS";
+			packageProductDependencies = (
+				85CB006F27B16C6900A47BB3 /* SDWebImage */,
+			);
 			productName = Lightbox;
 			productReference = D523B0A91C43AA2A001AD1EC /* Lightbox.framework */;
 			productType = "com.apple.product-type.framework";
@@ -259,7 +256,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 1150;
-				LastUpgradeCheck = 1200;
+				LastUpgradeCheck = 1320;
 				ORGANIZATIONNAME = "Hyper Interaktiv AS";
 				TargetAttributes = {
 					44E6A6462495BFAB00543CF0 = {
@@ -281,6 +278,9 @@
 				Base,
 			);
 			mainGroup = D523B09F1C43AA2A001AD1EC;
+			packageReferences = (
+				85CB006E27B16C6900A47BB3 /* XCRemoteSwiftPackageReference "SDWebImage" */,
+			);
 			productRefGroup = D523B0AA1C43AA2A001AD1EC /* Products */;
 			projectDirPath = "";
 			projectRoot = "";
@@ -381,8 +381,11 @@
 				);
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				INFOPLIST_FILE = iOSDemo/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				PRODUCT_BUNDLE_IDENTIFIER = com.elvisnunez.iOSDemo;
@@ -410,8 +413,11 @@
 				);
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				INFOPLIST_FILE = iOSDemo/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
 				MTL_FAST_MATH = YES;
 				PRODUCT_BUNDLE_IDENTIFIER = com.elvisnunez.iOSDemo;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -527,7 +533,8 @@
 				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
-				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
@@ -550,8 +557,12 @@
 				);
 				INFOPLIST_FILE = Lightbox/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+					"@loader_path/Frameworks",
+				);
 				PRODUCT_BUNDLE_IDENTIFIER = no.hyper.Lightbox;
 				PRODUCT_NAME = Lightbox;
 				SKIP_INSTALL = YES;
@@ -575,8 +586,12 @@
 				);
 				INFOPLIST_FILE = Lightbox/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+					"@loader_path/Frameworks",
+				);
 				PRODUCT_BUNDLE_IDENTIFIER = no.hyper.Lightbox;
 				PRODUCT_NAME = Lightbox;
 				SKIP_INSTALL = YES;
@@ -617,6 +632,25 @@
 			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
+
+/* Begin XCRemoteSwiftPackageReference section */
+		85CB006E27B16C6900A47BB3 /* XCRemoteSwiftPackageReference "SDWebImage" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/SDWebImage/SDWebImage.git";
+			requirement = {
+				kind = upToNextMajorVersion;
+				minimumVersion = 5.0.0;
+			};
+		};
+/* End XCRemoteSwiftPackageReference section */
+
+/* Begin XCSwiftPackageProductDependency section */
+		85CB006F27B16C6900A47BB3 /* SDWebImage */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 85CB006E27B16C6900A47BB3 /* XCRemoteSwiftPackageReference "SDWebImage" */;
+			productName = SDWebImage;
+		};
+/* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = D523B0A01C43AA2A001AD1EC /* Project object */;
 }

Lightbox.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -2,6 +2,6 @@
 <Workspace
    version = "1.0">
    <FileRef
-      location = "self:Lightbox.xcodeproj">
+      location = "self:">
    </FileRef>
 </Workspace>

Lightbox.xcodeproj/xcshareddata/xcschemes/Lightbox-iOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1200"
+   LastUpgradeVersion = "1320"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

Package.swift

@@ -8,13 +8,11 @@ let package = Package(
             name: "Lightbox",
             targets: ["Lightbox"]),
     ],
-    dependencies: [
-      .package(url: "https://github.com/hyperoslo/Imaginary", .branch("master"))
-    ],
+    dependencies: [],
     targets: [
         .target(
             name: "Lightbox",
-            dependencies: ["Imaginary"],
+            dependencies: [],
             path: "Source"
             )
     ],

Source/Library/LayoutConfigurable.swift

@@ -1,4 +1,4 @@
-protocol LayoutConfigurable: class {
-
+protocol LayoutConfigurable: AnyObject {
+  @MainActor
   func configureLayout()
 }

Source/Library/LightboxTransition.swift

@@ -96,11 +96,11 @@ class LightboxTransition: UIPercentDrivenInteractiveTransition {
 
 extension LightboxTransition: UIViewControllerAnimatedTransitioning {
 
-  func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
+  func transitionDuration(using transitionContext: (any UIViewControllerContextTransitioning)?) -> TimeInterval {
     return 0.25
   }
 
-  func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
+  func animateTransition(using transitionContext: any UIViewControllerContextTransitioning) {
     let container = transitionContext.containerView
 
     guard let fromView = transitionContext.view(forKey: UITransitionContextViewKey.from),
@@ -133,23 +133,23 @@ extension LightboxTransition: UIViewControllerAnimatedTransitioning {
 
 extension LightboxTransition: UIViewControllerTransitioningDelegate {
 
-  func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
+  func animationController(forDismissed dismissed: UIViewController) -> (any UIViewControllerAnimatedTransitioning)? {
     dismissing = true
     return self
   }
 
   func animationController(forPresented presented: UIViewController,
                            presenting: UIViewController,
-                           source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
+                           source: UIViewController) -> (any UIViewControllerAnimatedTransitioning)? {
     dismissing = false
     return self
   }
 
-  func interactionControllerForDismissal(using animator: UIViewControllerAnimatedTransitioning) -> UIViewControllerInteractiveTransitioning? {
+  func interactionControllerForDismissal(using animator: any UIViewControllerAnimatedTransitioning) -> (any UIViewControllerInteractiveTransitioning)? {
     return interactive ? self : nil
   }
 
-  func interactionControllerForPresentation(using animator: UIViewControllerAnimatedTransitioning) -> UIViewControllerInteractiveTransitioning? {
+  func interactionControllerForPresentation(using animator: any UIViewControllerAnimatedTransitioning) -> (any UIViewControllerInteractiveTransitioning)? {
     return interactive ? self : nil
   }
 }

Source/LightboxConfig.swift

@@ -1,13 +1,15 @@
 import UIKit
 import AVKit
 import AVFoundation
-import Imaginary
 
 public class LightboxConfig {
   /// Whether to show status bar while Lightbox is presented
   public static var hideStatusBar = true
+    
+  public static var imageBackgroundColor = UIColor.black
 
   /// Provide a closure to handle selected video
+  @MainActor
   public static var handleVideo: (_ from: UIViewController, _ videoURL: URL) -> Void = { from, videoURL in
     let videoController = AVPlayerViewController()
     videoController.player = AVPlayer(url: videoURL)
@@ -17,21 +19,11 @@ public class LightboxConfig {
     }
   }
 
-  /// How to load image onto UIImageView
-  public static var loadImage: (UIImageView, URL, ((UIImage?) -> Void)?) -> Void = { (imageView, imageURL, completion) in
-
-    // Use Imaginary by default
-    imageView.setImage(url: imageURL, placeholder: nil, completion: { result in
-      switch result {
-      case .value(let image):
-        completion?(image)
-      case .error:
-        completion?(nil)
-      }
-    })
-  }
+  /// How to load image onto SDAnimatedImageView
+  public static var loadImage: ((UIImageView, URL, ((UIImage?) -> Void)?) -> Void)?
 
   /// Indicator is used to show while image is being fetched
+  @MainActor
   public static var makeLoadingIndicator: () -> UIView = {
     return LoadingIndicator()
   }

Source/LightboxController.swift

@@ -1,20 +1,32 @@
 import UIKit
 
-public protocol LightboxControllerPageDelegate: class {
-
+public protocol LightboxControllerPageDelegate: AnyObject {
+  @MainActor
   func lightboxController(_ controller: LightboxController, didMoveToPage page: Int)
 }
 
-public protocol LightboxControllerDismissalDelegate: class {
-
+public protocol LightboxControllerDismissalDelegate: AnyObject {
+  @MainActor
   func lightboxControllerWillDismiss(_ controller: LightboxController)
 }
 
-public protocol LightboxControllerTouchDelegate: class {
-
+public protocol LightboxControllerTouchDelegate: AnyObject {
+  @MainActor
   func lightboxController(_ controller: LightboxController, didTouch image: LightboxImage, at index: Int)
 }
 
+public protocol LightboxControllerTapDelegate: AnyObject {
+  @MainActor
+  func lightboxController(_ controller: LightboxController, didTap image: LightboxImage, at index: Int)
+  @MainActor
+  func lightboxController(_ controller: LightboxController, didDoubleTap image: LightboxImage, at index: Int)
+}
+
+public protocol LightboxControllerDeleteDelegate: AnyObject {
+  @MainActor
+  func lightboxController(_ controller: LightboxController, willDeleteAt index: Int)
+}
+
 open class LightboxController: UIViewController {
 
   // MARK: - Internal views
@@ -136,9 +148,11 @@ open class LightboxController: UIViewController {
     }
   }
 
-  open weak var pageDelegate: LightboxControllerPageDelegate?
-  open weak var dismissalDelegate: LightboxControllerDismissalDelegate?
-  open weak var imageTouchDelegate: LightboxControllerTouchDelegate?
+  open weak var pageDelegate: (any LightboxControllerPageDelegate)?
+  open weak var dismissalDelegate: (any LightboxControllerDismissalDelegate)?
+  open weak var imageTouchDelegate: (any LightboxControllerTouchDelegate)?
+  open weak var imageTapDelegate: (any LightboxControllerTapDelegate)?
+  open weak var imageDeleteDelegate: (any LightboxControllerDeleteDelegate)?
   open internal(set) var presented = false
   open fileprivate(set) var seen = false
 
@@ -172,7 +186,7 @@ open class LightboxController: UIViewController {
     
     statusBarHidden = UIApplication.shared.isStatusBarHidden
 
-    view.backgroundColor = UIColor.black
+    view.backgroundColor = LightboxConfig.imageBackgroundColor
     transitionManager.lightboxController = self
     transitionManager.scrollView = scrollView
     transitioningDelegate = transitionManager
@@ -185,14 +199,6 @@ open class LightboxController: UIViewController {
     goTo(initialPage, animated: false)
   }
 
-  open override func viewDidAppear(_ animated: Bool) {
-    super.viewDidAppear(animated)
-    if !presented {
-      presented = true
-      configureLayout(view.bounds.size)
-    }
-  }
-
   open override func viewDidLayoutSubviews() {
     super.viewDidLayoutSubviews()
 
@@ -213,6 +219,11 @@ open class LightboxController: UIViewController {
       width: view.bounds.width,
       height: 100
     )
+    
+    if !presented {
+      presented = true
+      configureLayout(view.bounds.size)
+    }
   }
 
   open override var prefersStatusBarHidden: Bool {
@@ -221,7 +232,7 @@ open class LightboxController: UIViewController {
 
   // MARK: - Rotation
 
-  override open func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
+  override open func viewWillTransition(to size: CGSize, with coordinator: any UIViewControllerTransitionCoordinator) {
     super.viewWillTransition(to: size, with: coordinator)
 
     coordinator.animate(alongsideTransition: { _ in
@@ -416,6 +427,14 @@ extension LightboxController: PageViewDelegate {
     let visible = (headerView.alpha == 1.0)
     toggleControls(pageView: pageView, visible: !visible)
   }
+    
+  func pageViewDidTap(_ pageView: PageView) {
+    imageTapDelegate?.lightboxController(self, didTap: images[currentPage], at: currentPage)
+  }
+    
+  func pageViewDidDoubleTap(_ pageView: PageView) {
+    imageTapDelegate?.lightboxController(self, didDoubleTap: images[currentPage], at: currentPage)
+  }
 }
 
 // MARK: - HeaderViewDelegate
@@ -425,6 +444,8 @@ extension LightboxController: HeaderViewDelegate {
   func headerView(_ headerView: HeaderView, didPressDeleteButton deleteButton: UIButton) {
     deleteButton.isEnabled = false
 
+    imageDeleteDelegate?.lightboxController(self, willDeleteAt: currentPage)
+      
     guard numberOfPages != 1 else {
       pageViews.removeAll()
       self.headerView(headerView, didPressCloseButton: headerView.closeButton)
@@ -440,6 +461,7 @@ extension LightboxController: HeaderViewDelegate {
       currentPage -= 1
     }
 
+    self.initialImages.remove(at: prevIndex)
     self.pageViews.remove(at: prevIndex).removeFromSuperview()
 
     DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 0.5) {

Source/LightboxImage.swift

@@ -1,5 +1,4 @@
 import UIKit
-import Imaginary
 
 open class LightboxImage {
 
@@ -38,7 +37,14 @@ open class LightboxImage {
       imageView.image = image
       completion?(image)
     } else if let imageURL = imageURL {
-      LightboxConfig.loadImage(imageView, imageURL, completion)
+      guard let loadImage = LightboxConfig.loadImage else {
+        print("Lightbox: To use `imageURL`, you must use `LightboxConfig.loadImage`.")
+        imageView.image = nil
+        completion?(nil)
+        return
+      }
+
+      loadImage(imageView, imageURL, completion)
     } else if let imageClosure = imageClosure {
       let img = imageClosure()
       imageView.image = img

Source/Views/FooterView.swift

@@ -1,7 +1,7 @@
 import UIKit
 
-public protocol FooterViewDelegate: class {
-
+public protocol FooterViewDelegate: AnyObject {
+  @MainActor
   func footerView(_ footerView: FooterView, didExpand expanded: Bool)
 }
 
@@ -35,7 +35,7 @@ open class FooterView: UIView {
   }()
 
   let gradientColors = [UIColor(hex: "040404").withAlphaComponent(0.1), UIColor(hex: "040404")]
-  open weak var delegate: FooterViewDelegate?
+  open weak var delegate: (any FooterViewDelegate)?
 
   // MARK: - Initializers
 

Source/Views/HeaderView.swift

@@ -1,7 +1,9 @@
 import UIKit
 
-protocol HeaderViewDelegate: class {
+protocol HeaderViewDelegate: AnyObject {
+  @MainActor
   func headerView(_ headerView: HeaderView, didPressDeleteButton deleteButton: UIButton)
+  @MainActor
   func headerView(_ headerView: HeaderView, didPressCloseButton closeButton: UIButton)
 }
 
@@ -60,7 +62,7 @@ open class HeaderView: UIView {
     return button
   }()
 
-  weak var delegate: HeaderViewDelegate?
+  weak var delegate: (any HeaderViewDelegate)?
 
   // MARK: - Initializers
 

Source/Views/InfoLabel.swift

@@ -1,7 +1,7 @@
 import UIKit
 
-public protocol InfoLabelDelegate: class {
-
+public protocol InfoLabelDelegate: AnyObject {
+  @MainActor
   func infoLabel(_ infoLabel: InfoLabel, didExpand expanded: Bool)
 }
 
@@ -20,7 +20,7 @@ open class InfoLabel: UILabel {
     return "... \(LightboxConfig.InfoLabel.ellipsisText)"
   }
 
-  open weak var delegate: InfoLabelDelegate?
+  open weak var delegate: (any InfoLabelDelegate)?
   fileprivate var shortText = ""
 
   var fullText: String {

Source/Views/PageView.swift

@@ -1,12 +1,18 @@
 import UIKit
 
-protocol PageViewDelegate: class {
-
+protocol PageViewDelegate: AnyObject {
+  @MainActor
   func pageViewDidZoom(_ pageView: PageView)
+  @MainActor
   func remoteImageDidLoad(_ image: UIImage?, imageView: UIImageView)
+  @MainActor
   func pageView(_ pageView: PageView, didTouchPlayButton videoURL: URL)
+  @MainActor
   func pageViewDidTouch(_ pageView: PageView)
-}
+  @MainActor
+  func pageViewDidTap(_ pageView: PageView)
+  @MainActor
+  func pageViewDidDoubleTap(_ pageView: PageView)}
 
 class PageView: UIScrollView {
 
@@ -49,7 +55,7 @@ class PageView: UIScrollView {
 
   var image: LightboxImage
   var contentFrame = CGRect.zero
-  weak var pageViewDelegate: PageViewDelegate?
+  weak var pageViewDelegate: (any PageViewDelegate)?
 
   var hasZoomed: Bool {
     return zoomScale != 1.0
@@ -146,10 +152,12 @@ class PageView: UIScrollView {
     let rectToZoomTo = CGRect(x: x, y: y, width: width, height: height)
 
     zoom(to: rectToZoomTo, animated: true)
+    pageViewDelegate?.pageViewDidDoubleTap(self)
   }
 
   @objc func viewTapped(_ recognizer: UITapGestureRecognizer) {
     pageViewDelegate?.pageViewDidTouch(self)
+    pageViewDelegate?.pageViewDidTap(self)
   }
 
   // MARK: - Layout

iOSDemo/ViewController.swift

@@ -1,5 +1,6 @@
 import UIKit
 import Lightbox
+import SDWebImage
 
 class ViewController: UIViewController {
   
@@ -22,12 +23,21 @@ class ViewController: UIViewController {
     view.backgroundColor = UIColor.white
     view.addSubview(showButton)
     title = "Lightbox"
+    LightboxConfig.preload = 2
+    LightboxConfig.loadImage = { imageView, url, completion in
+      imageView.sd_setImage(with: url) { image, _, _ , _ in
+        completion?(image)
+      }
+    }
   }
   
   // MARK: - Action methods
   
     @objc func showLightbox() {
         let images = [
+            LightboxImage(imageURL: URL(string: "https://media.giphy.com/media/Ku65904QQe4yez448B/giphy.gif")!),
+            LightboxImage(imageURL: URL(string: "https://media.giphy.com/media/lQDLwWUMPaAHvh8pAG/giphy.gif")!),
+            LightboxImage(imageURL: URL(string: "https://media.giphy.com/media/ontKwPWJxARsuKaKqJ/giphy.gif")!),
             LightboxImage(
                 image: UIImage(named: "photo1")!,
                 text: "Photography is the science, art, application and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film"
@@ -44,7 +54,8 @@ class ViewController: UIViewController {
             LightboxImage(
                 image: UIImage(named: "photo3")!,
                 text: "A lightbox is a translucent surface illuminated from behind, used for situations where a shape laid upon the surface needs to be seen with high contrast."
-            )
+            ),
+            LightboxImage(imageURL: URL(string: "https://c.tenor.com/kccsHXtdDn0AAAAC/alcohol-wine.gif")!)
         ]
         
         let controller = LightboxController(images: images)