Fix building for iOS 14

Tusker.xcodeproj/project.pbxproj

@@ -2205,8 +2205,7 @@
 				CURRENT_PROJECT_VERSION = 31;
 				DEVELOPMENT_TEAM = V4WK9KR9U2;
 				INFOPLIST_FILE = Tusker/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 14.1;
+				IPHONEOS_DEPLOYMENT_TARGET = 14.3;
-				"IPHONEOS_DEPLOYMENT_TARGET[sdk=macosx*]" = 14.3;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -2236,8 +2235,7 @@
 				CURRENT_PROJECT_VERSION = 31;
 				DEVELOPMENT_TEAM = V4WK9KR9U2;
 				INFOPLIST_FILE = Tusker/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 14.1;
+				IPHONEOS_DEPLOYMENT_TARGET = 14.3;
-				"IPHONEOS_DEPLOYMENT_TARGET[sdk=macosx*]" = 14.3;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",

Tusker/Screens/Compose/ComposeAttachmentRow.swift

@@ -154,6 +154,7 @@ extension ComposeAttachmentRow {
 }
 
 private extension View {
+    @available(iOS, obsoleted: 16.0)
     @ViewBuilder
     func contextMenu<M: View, P: View>(@ViewBuilder menuItems: () -> M, @ViewBuilder previewIfAvailable preview: () -> P) -> some View {
         if #available(iOS 16.0, *) {

Tusker/Screens/Large Image/LargeImageContentView.swift

@@ -17,7 +17,7 @@ protocol LargeImageContentView: UIView {
     func grayscaleStateChanged()
 }
 
-class LargeImageImageContentView: UIImageView, LargeImageContentView, ImageAnalysisInteractionDelegate {
+class LargeImageImageContentView: UIImageView, LargeImageContentView {
     
     @available(iOS 16.0, *)
     private static let analyzer = ImageAnalyzer()
@@ -76,7 +76,10 @@ class LargeImageImageContentView: UIImageView, LargeImageContentView, ImageAnaly
             self.image = image
         }
     }
-    
+}
+
+@available(iOS 16.0, *)
+extension LargeImageImageContentView: ImageAnalysisInteractionDelegate {
     func presentingViewController(for interaction: ImageAnalysisInteraction) -> UIViewController? {
         return owner
     }

Tusker/Screens/Utilities/EnhancedNavigationViewController.swift

@@ -20,10 +20,13 @@ class EnhancedNavigationViewController: UINavigationController {
     override var viewControllers: [UIViewController] {
         didSet {
             poppedViewControllers = []
-            for vc in viewControllers {
+            if #available(iOS 16.0, *) {
-                configureNavItem(vc.navigationItem)
+                // TODO: this for loop might not be necessary
+                for vc in viewControllers {
+                    configureNavItem(vc.navigationItem)
+                }
+                updateTopNavItemState()
             }
-            updateTopNavItemState()
         }
     }
     
@@ -32,7 +35,8 @@ class EnhancedNavigationViewController: UINavigationController {
 
         self.interactivePushTransition = InteractivePushTransition(navigationController: self)
         
-        if let topViewController {
+        if #available(iOS 16.0, *),
+           let topViewController {
             configureNavItem(topViewController.navigationItem)
             updateTopNavItemState()
         }
@@ -42,7 +46,9 @@ class EnhancedNavigationViewController: UINavigationController {
         let popped = performAfterAnimating(block: {
             super.popViewController(animated: animated)
         }, after: {
-            self.updateTopNavItemState()
+            if #available(iOS 16.0, *) {
+                self.updateTopNavItemState()
+            }
         }, animated: animated)
         if let popped {
             poppedViewControllers.insert(popped, at: 0)
@@ -54,7 +60,9 @@ class EnhancedNavigationViewController: UINavigationController {
         let popped = performAfterAnimating(block: {
             super.popToRootViewController(animated: animated)
         }, after: {
-            self.updateTopNavItemState()
+            if #available(iOS 16.0, *) {
+                self.updateTopNavItemState()
+            }
         }, animated: animated)
         if let popped {
             poppedViewControllers = popped
@@ -66,7 +74,9 @@ class EnhancedNavigationViewController: UINavigationController {
         let popped = performAfterAnimating(block: {
             super.popToViewController(viewController, animated: animated)
         }, after: {
-            self.updateTopNavItemState()
+            if #available(iOS 16.0, *) {
+                self.updateTopNavItemState()
+            }
         }, animated: animated)
         if let popped {
             poppedViewControllers.insert(contentsOf: popped, at: 0)
@@ -81,11 +91,15 @@ class EnhancedNavigationViewController: UINavigationController {
             self.poppedViewControllers = []
         }
         
-        configureNavItem(viewController.navigationItem)
+        if #available(iOS 16.0, *) {
+            configureNavItem(viewController.navigationItem)
+        }
         
         super.pushViewController(viewController, animated: animated)
         
-        updateTopNavItemState()
+        if #available(iOS 16.0, *) {
+            updateTopNavItemState()
+        }
     }
     
     func pushPoppedViewController() {
@@ -115,7 +129,9 @@ class EnhancedNavigationViewController: UINavigationController {
             pushViewController(target, animated: true)
         }, after: {
             self.viewControllers.insert(contentsOf: toInsert, at: self.viewControllers.count - 1)
-            self.updateTopNavItemState()
+            if #available(iOS 16.0, *) {
+                self.updateTopNavItemState()
+            }
         }, animated: true)
     }
     
@@ -135,6 +151,7 @@ class EnhancedNavigationViewController: UINavigationController {
         })
     }
     
+    @available(iOS 16.0, *)
     private func configureNavItem(_ navItem: UINavigationItem) {
         guard useBrowserStyleNavigation,
               UIDevice.current.userInterfaceIdiom != .phone else {
@@ -183,6 +200,7 @@ class EnhancedNavigationViewController: UINavigationController {
         ]
     }
     
+    @available(iOS 16.0, *)
     private func updateTopNavItemState() {
         guard useBrowserStyleNavigation,
               UIDevice.current.userInterfaceIdiom != .phone,