TextKit 2, baby

Fixes posting attachments on pleroma resulting in them served as
application/octet-stream, even though we're sending the mime type as well

Tusker.xcodeproj/project.pbxproj

@@ -18,7 +18,6 @@
 		04DACE8C212CB14B009840C4 /* MainTabBarViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04DACE8B212CB14B009840C4 /* MainTabBarViewController.swift */; };
 		04DACE8E212CC7CC009840C4 /* ImageCache.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04DACE8D212CC7CC009840C4 /* ImageCache.swift */; };
 		04ED00B121481ED800567C53 /* SteppedProgressView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04ED00B021481ED800567C53 /* SteppedProgressView.swift */; };
-		D600613E25D07E170067FAD6 /* ProfileDirectoryFilterView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D600613D25D07E170067FAD6 /* ProfileDirectoryFilterView.swift */; };
 		D6093F9B25BDD4B9004811E6 /* HashtagSearchResultsViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6093F9A25BDD4B9004811E6 /* HashtagSearchResultsViewController.swift */; };
 		D6093FB025BE0B01004811E6 /* TrendingHashtagTableViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6093FAE25BE0B01004811E6 /* TrendingHashtagTableViewCell.swift */; };
 		D6093FB125BE0B01004811E6 /* TrendingHashtagTableViewCell.xib in Resources */ = {isa = PBXBuildFile; fileRef = D6093FAF25BE0B01004811E6 /* TrendingHashtagTableViewCell.xib */; };
@@ -283,6 +282,7 @@
 		D6DFC69E242C490400ACC392 /* TrackpadScrollGestureRecognizer.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6DFC69D242C490400ACC392 /* TrackpadScrollGestureRecognizer.swift */; };
 		D6DFC6A0242C4CCC00ACC392 /* WeakArray.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6DFC69F242C4CCC00ACC392 /* WeakArray.swift */; };
 		D6E0DC8E216EDF1E00369478 /* Previewing.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6E0DC8D216EDF1E00369478 /* Previewing.swift */; };
+		D6E1EEF4285443EF00D20549 /* UIAction+Subtitle.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6E1EEF3285443EF00D20549 /* UIAction+Subtitle.swift */; };
 		D6E343AB265AAD6B00C4AA01 /* Media.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D6E343AA265AAD6B00C4AA01 /* Media.xcassets */; };
 		D6E343AD265AAD6B00C4AA01 /* ActionViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6E343AC265AAD6B00C4AA01 /* ActionViewController.swift */; };
 		D6E343B0265AAD6B00C4AA01 /* MainInterface.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D6E343AE265AAD6B00C4AA01 /* MainInterface.storyboard */; };
@@ -366,7 +366,6 @@
 		04DACE8B212CB14B009840C4 /* MainTabBarViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainTabBarViewController.swift; sourceTree = "<group>"; };
 		04DACE8D212CC7CC009840C4 /* ImageCache.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ImageCache.swift; sourceTree = "<group>"; };
 		04ED00B021481ED800567C53 /* SteppedProgressView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SteppedProgressView.swift; sourceTree = "<group>"; };
-		D600613D25D07E170067FAD6 /* ProfileDirectoryFilterView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ProfileDirectoryFilterView.swift; sourceTree = "<group>"; };
 		D6093F9A25BDD4B9004811E6 /* HashtagSearchResultsViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HashtagSearchResultsViewController.swift; sourceTree = "<group>"; };
 		D6093FAE25BE0B01004811E6 /* TrendingHashtagTableViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TrendingHashtagTableViewCell.swift; sourceTree = "<group>"; };
 		D6093FAF25BE0B01004811E6 /* TrendingHashtagTableViewCell.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = TrendingHashtagTableViewCell.xib; sourceTree = "<group>"; };
@@ -635,6 +634,7 @@
 		D6DFC69D242C490400ACC392 /* TrackpadScrollGestureRecognizer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TrackpadScrollGestureRecognizer.swift; sourceTree = "<group>"; };
 		D6DFC69F242C4CCC00ACC392 /* WeakArray.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = WeakArray.swift; sourceTree = "<group>"; };
 		D6E0DC8D216EDF1E00369478 /* Previewing.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Previewing.swift; sourceTree = "<group>"; };
+		D6E1EEF3285443EF00D20549 /* UIAction+Subtitle.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIAction+Subtitle.swift"; sourceTree = "<group>"; };
 		D6E343A8265AAD6B00C4AA01 /* OpenInTusker.appex */ = {isa = PBXFileReference; explicitFileType = "wrapper.app-extension"; includeInIndex = 0; path = OpenInTusker.appex; sourceTree = BUILT_PRODUCTS_DIR; };
 		D6E343AA265AAD6B00C4AA01 /* Media.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Media.xcassets; sourceTree = "<group>"; };
 		D6E343AC265AAD6B00C4AA01 /* ActionViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ActionViewController.swift; sourceTree = "<group>"; };
@@ -806,7 +806,6 @@
 				D693A72925CF8C1E003A14E2 /* ProfileDirectoryViewController.swift */,
 				D693A72D25CF91C6003A14E2 /* FeaturedProfileCollectionViewCell.swift */,
 				D693A72E25CF91C6003A14E2 /* FeaturedProfileCollectionViewCell.xib */,
-				D600613D25D07E170067FAD6 /* ProfileDirectoryFilterView.swift */,
 			);
 			path = Explore;
 			sourceTree = "<group>";
@@ -1124,6 +1123,7 @@
 				D6620ACD2511A0ED00312CA0 /* StatusStateResolver.swift */,
 				D69693F32585941A00F4E116 /* UIWindowSceneDelegate+Close.swift */,
 				D62E9984279CA23900C26176 /* URLSession+Development.swift */,
+				D6E1EEF3285443EF00D20549 /* UIAction+Subtitle.swift */,
 			);
 			path = Extensions;
 			sourceTree = "<group>";
@@ -1744,7 +1744,6 @@
 				D626493523BD94CE00612E6E /* CompositionAttachmentData.swift in Sources */,
 				D6531DF0246B867E000F9538 /* GifvAttachmentViewController.swift in Sources */,
 				D6285B5321EA708700FE4B39 /* StatusFormat.swift in Sources */,
-				D600613E25D07E170067FAD6 /* ProfileDirectoryFilterView.swift in Sources */,
 				D6DD353D22F28CD000A9563A /* ContentWarningCopyMode.swift in Sources */,
 				0427033A22B31269000D31B6 /* AdvancedPrefsView.swift in Sources */,
 				D662AEEF263A3B880082A153 /* PollFinishedTableViewCell.swift in Sources */,
@@ -1765,6 +1764,7 @@
 				D64BC18F23C18B9D000D0238 /* FollowRequestNotificationTableViewCell.swift in Sources */,
 				D62E9989279DB2D100C26176 /* InstanceFeatures.swift in Sources */,
 				D693DE5923FE24310061E07D /* InteractivePushTransition.swift in Sources */,
+				D6E1EEF4285443EF00D20549 /* UIAction+Subtitle.swift in Sources */,
 				D69693FA25859A8000F4E116 /* ComposeSceneDelegate.swift in Sources */,
 				D6A3BC8A2321F79B00FD64D5 /* AccountTableViewCell.swift in Sources */,
 				D66A77BB233838DC0058F1EC /* UIFont+Traits.swift in Sources */,
@@ -2205,8 +2205,7 @@
 				CURRENT_PROJECT_VERSION = 31;
 				DEVELOPMENT_TEAM = V4WK9KR9U2;
 				INFOPLIST_FILE = Tusker/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 14.1;
-				"IPHONEOS_DEPLOYMENT_TARGET[sdk=macosx*]" = 14.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 14.3;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -2236,8 +2235,7 @@
 				CURRENT_PROJECT_VERSION = 31;
 				DEVELOPMENT_TEAM = V4WK9KR9U2;
 				INFOPLIST_FILE = Tusker/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 14.1;
-				"IPHONEOS_DEPLOYMENT_TARGET[sdk=macosx*]" = 14.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 14.3;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",

Tusker/Models/CompositionAttachmentData.swift

@@ -48,13 +48,13 @@ enum CompositionAttachmentData {
         }
     }
     
-    func getData(completion: @escaping (Result<(Data, String), Error>) -> Void) {
+    func getData(completion: @escaping (Result<(Data, UTType), Error>) -> Void) {
         switch self {
         case let .image(image):
             // Export as JPEG instead of PNG, otherweise photos straight from the camera are too large
             // for Mastodon in its default configuration (max of 10MB).
             // The quality of 0.8 was chosen completely arbitrarily, it may need to be tuned in the future.
-            completion(.success((image.jpegData(compressionQuality: 0.8)!, "image/jpeg")))
+            completion(.success((image.jpegData(compressionQuality: 0.8)!, .jpeg)))
         case let .asset(asset):
             if asset.mediaType == .image {
                 let options = PHImageRequestOptions()
@@ -68,19 +68,19 @@ enum CompositionAttachmentData {
                         return
                     }
     
-                    let mimeType: String
+                    let utType: UTType
                     if dataUTI == "public.heic" {
                         // neither Mastodon nor Pleroma handles HEIC well, so convert to JPEG
                         let image = CIImage(data: data)!
                         let context = CIContext()
                         let colorSpace = image.colorSpace ?? CGColorSpace(name: CGColorSpace.sRGB)!
                         data = context.jpegRepresentation(of: image, colorSpace: colorSpace, options: [:])!
-                        mimeType = "image/jpeg"
+                        utType = .jpeg
                     } else {
-                        mimeType = UTType(dataUTI)!.preferredMIMEType!
+                        utType = UTType(dataUTI)!
                     }
     
-                    completion(.success((data, mimeType)))
+                    completion(.success((data, utType)))
                 }
             } else if asset.mediaType == .video {
                 let options = PHVideoRequestOptions()
@@ -109,11 +109,11 @@ enum CompositionAttachmentData {
             
         case let .drawing(drawing):
             let image = drawing.imageInLightMode(from: drawing.bounds, scale: 1)
-            completion(.success((image.pngData()!, "image/png")))
+            completion(.success((image.pngData()!, .png)))
         }
     }
     
-    private static func exportVideoData(session: AVAssetExportSession, completion: @escaping (Result<(Data, String), Error>) -> Void) {
+    private static func exportVideoData(session: AVAssetExportSession, completion: @escaping (Result<(Data, UTType), Error>) -> Void) {
         session.outputFileType = .mp4
         session.outputURL = FileManager.default.temporaryDirectory.appendingPathComponent("exported_video_\(UUID())").appendingPathExtension("mp4")
         session.exportAsynchronously {
@@ -123,7 +123,7 @@ enum CompositionAttachmentData {
             }
             do {
                 let data = try Data(contentsOf: session.outputURL!)
-                completion(.success((data, "video/mp4")))
+                completion(.success((data, .mpeg4Movie)))
             } catch {
                 completion(.failure(.videoExport(error)))
             }

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/Compose/ComposeAttachmentsList.swift

@@ -50,7 +50,7 @@ struct ComposeAttachmentsList: View {
             .disabled(!canAddAttachment)
             .foregroundColor(.blue)
             .frame(height: cellHeight / 2)
-            .popover(isPresented: $isShowingAssetPickerPopover, content: self.assetPickerPopover)
+            .sheetOrPopover(isPresented: $isShowingAssetPickerPopover, content: self.assetPickerPopover)
             .listRowInsets(EdgeInsets(top: cellPadding / 2, leading: cellPadding / 2, bottom: cellPadding / 2, trailing: cellPadding / 2))
             
             Button(action: self.createDrawing) {
@@ -134,14 +134,21 @@ struct ComposeAttachmentsList: View {
     private func assetPickerPopover() -> some View {
         ComposeAssetPicker(draft: draft, delegate: uiState.delegate?.assetPickerDelegate)
             .onDisappear {
+                // on iPadOS 16, this is necessary to dismiss the popover when collapsing from regular -> compact size class
+                // otherwise, the popover isn't visible but it's still "presented", so the sheet can't be shown
                 self.isShowingAssetPickerPopover = false
             }
+            // on iPadOS 16, this is necessary to show the dark color in the popover arrow
+            .background(Color(.systemBackground))
             .environment(\.colorScheme, .dark)
             .edgesIgnoringSafeArea(.bottom)
+            .withSheetDetentsIfAvailable()
     }
     
     private func addAttachment() {
-        if horizontalSizeClass == .regular {
+        if #available(iOS 16.0, *) {
+            isShowingAssetPickerPopover = true
+        } else if horizontalSizeClass == .regular {
             isShowingAssetPickerPopover = true
         } else {
             uiState.delegate?.presentAssetPickerSheet()
@@ -184,6 +191,7 @@ struct ComposeAttachmentsList: View {
 }
 
 fileprivate extension View {
+    @available(iOS, obsoleted: 15.0)
     @ViewBuilder
     func onDragWithPreviewIfAvailable<V>(_ data: @escaping () -> NSItemProvider, preview: () -> V) -> some View where V : View {
         if #available(iOS 15.0, *) {
@@ -192,6 +200,45 @@ fileprivate extension View {
             self.onDrag(data)
         }
     }
+    
+    @available(iOS, obsoleted: 16.0)
+    @ViewBuilder
+    func sheetOrPopover(isPresented: Binding<Bool>, @ViewBuilder content: @escaping () -> some View) -> some View {
+        if #available(iOS 16.0, *) {
+            self.modifier(SheetOrPopover(isPresented: isPresented, view: content))
+        } else {
+            self.popover(isPresented: isPresented, content: content)
+        }
+    }
+    
+    @available(iOS, obsoleted: 16.0)
+    @ViewBuilder
+    func withSheetDetentsIfAvailable() -> some View {
+        if #available(iOS 16.0, *) {
+            self
+                .presentationDetents([.medium, .large])
+                .presentationDragIndicator(.visible)
+        } else {
+            self
+        }
+    }
+}
+
+@available(iOS 16.0, *)
+struct SheetOrPopover<V: View>: ViewModifier {
+    @Binding var isPresented: Bool
+    @ViewBuilder let view: () -> V
+    
+    @Environment(\.horizontalSizeClass) var sizeClass
+    
+    func body(content: Content) -> some View {
+        let _ = print("isPresented: \(isPresented)")
+        if sizeClass == .compact {
+            content.sheet(isPresented: $isPresented, content: view)
+        } else {
+            content.popover(isPresented: $isPresented, content: view)
+        }
+    }
 }
 
 //struct ComposeAttachmentsList_Previews: PreviewProvider {

Tusker/Screens/Compose/ComposeUIState.swift

@@ -12,6 +12,7 @@ protocol ComposeUIStateDelegate: AnyObject {
     var assetPickerDelegate: AssetPickerViewControllerDelegate? { get }
     
     func dismissCompose(mode: ComposeUIState.DismissMode)
+    // @available(iOS, obsoleted: 16.0)
     func presentAssetPickerSheet()
     func presentComposeDrawing()
     

Tusker/Screens/Compose/ComposeView.swift

@@ -89,7 +89,7 @@ struct ComposeView: View {
                 ScrollView(.vertical) {
                     mainStack(outerMinY: outer.frame(in: .global).minY)
                 }
-                .scrollDismissesKeyboard(.interactively)
+                .scrollDismissesKeyboardInteractivelyIfAvailable()
             }
             
             if let poster = poster {
@@ -251,6 +251,18 @@ struct ComposeView: View {
     }
 }
 
+private extension View {
+    @available(iOS, obsoleted: 16.0)
+    @ViewBuilder
+    func scrollDismissesKeyboardInteractivelyIfAvailable() -> some View {
+        if #available(iOS 16.0, *) {
+            self.scrollDismissesKeyboard(.interactively)
+        } else {
+            self
+        }
+    }
+}
+
 //struct ComposeView_Previews: PreviewProvider {
 //    static var previews: some View {
 //        ComposeView()

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/Notifications/NotificationsTableViewController.swift

@@ -255,8 +255,11 @@ extension NotificationsTableViewController: MenuActionProvider {
 
 extension NotificationsTableViewController: StatusTableViewCellDelegate {
     func statusCellCollapsedStateChanged(_ cell: BaseStatusTableViewCell) {
+        if #available(iOS 16.0, *) {
+        } else {
             cellHeightChanged()
         }
+    }
 }
 
 extension NotificationsTableViewController: UITableViewDataSourcePrefetching {

Tusker/Screens/Profile/ProfileStatusesViewController.swift

@@ -265,8 +265,11 @@ extension ProfileStatusesViewController: TuskerNavigationDelegate {
 
 extension ProfileStatusesViewController: StatusTableViewCellDelegate {
     func statusCellCollapsedStateChanged(_ cell: BaseStatusTableViewCell) {
+        if #available(iOS 16.0, *) {
+        } else {
             cellHeightChanged()
         }
+    }
 }
 
 extension ProfileStatusesViewController: UITableViewDataSourcePrefetching, StatusTablePrefetching {

Tusker/Screens/Timeline/TimelineTableViewController.swift

@@ -290,8 +290,11 @@ extension TimelineTableViewController: TuskerNavigationDelegate {
 
 extension TimelineTableViewController: StatusTableViewCellDelegate {
     func statusCellCollapsedStateChanged(_ cell: BaseStatusTableViewCell) {
+        if #available(iOS 16.0, *) {
+        } else {
             cellHeightChanged()
         }
+    }
 }
 
 extension TimelineTableViewController: MenuActionProvider {

Tusker/Screens/Utilities/DiffableTimelineLikeTableViewController.swift

@@ -163,6 +163,7 @@ class DiffableTimelineLikeTableViewController<Section: Hashable & CaseIterable,
         }
     }
     
+    @available(iOS, deprecated: 16.0)
     func cellHeightChanged() {
         // causes the table view to recalculate the cell heights
         tableView.beginUpdates()

Tusker/Screens/Utilities/EnhancedNavigationViewController.swift

@@ -20,19 +20,23 @@ class EnhancedNavigationViewController: UINavigationController {
     override var viewControllers: [UIViewController] {
         didSet {
             poppedViewControllers = []
+            if #available(iOS 16.0, *) {
+                // TODO: this for loop might not be necessary
                 for vc in viewControllers {
                     configureNavItem(vc.navigationItem)
                 }
                 updateTopNavItemState()
             }
         }
+    }
     
     override func viewDidLoad() {
         super.viewDidLoad()
 
         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: {
+            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: {
+            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: {
+            if #available(iOS 16.0, *) {
                 self.updateTopNavItemState()
+            }
         }, animated: animated)
         if let popped {
             poppedViewControllers.insert(contentsOf: popped, at: 0)
@@ -81,12 +91,16 @@ class EnhancedNavigationViewController: UINavigationController {
             self.poppedViewControllers = []
         }
         
+        if #available(iOS 16.0, *) {
             configureNavItem(viewController.navigationItem)
+        }
         
         super.pushViewController(viewController, animated: animated)
         
+        if #available(iOS 16.0, *) {
             updateTopNavItemState()
         }
+    }
     
     func pushPoppedViewController() {
         guard !poppedViewControllers.isEmpty else {
@@ -115,7 +129,9 @@ class EnhancedNavigationViewController: UINavigationController {
             pushViewController(target, animated: true)
         }, after: {
             self.viewControllers.insert(contentsOf: toInsert, at: self.viewControllers.count - 1)
+            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,

Tusker/Services/PostService.swift

@@ -8,6 +8,7 @@
 
 import Foundation
 import Pachyderm
+import UniformTypeIdentifiers
 
 class PostService: ObservableObject {
     private let mastodonController: MastodonController
@@ -66,15 +67,15 @@ class PostService: ObservableObject {
         attachments.reserveCapacity(draft.attachments.count)
         for (index, attachment) in draft.attachments.enumerated() {
             let data: Data
-            let mimeType: String
+            let utType: UTType
             do {
-                (data, mimeType) = try await getData(for: attachment)
+                (data, utType) = try await getData(for: attachment)
                 currentStep += 1
             } catch let error as CompositionAttachmentData.Error {
                 throw Error.attachmentData(index: index, cause: error)
             }
             do {
-                let uploaded = try await uploadAttachment(data: data, mimeType: mimeType, description: attachment.attachmentDescription)
+                let uploaded = try await uploadAttachment(data: data, utType: utType, description: attachment.attachmentDescription)
                 attachments.append(uploaded)
                 currentStep += 1
             } catch let error as Client.Error {
@@ -84,7 +85,7 @@ class PostService: ObservableObject {
         return attachments
     }
     
-    private func getData(for attachment: CompositionAttachment) async throws -> (Data, String) {
+    private func getData(for attachment: CompositionAttachment) async throws -> (Data, UTType) {
         return try await withCheckedThrowingContinuation { continuation in
             attachment.data.getData { result in
                 switch result {
@@ -97,8 +98,8 @@ class PostService: ObservableObject {
         }
     }
     
-    private func uploadAttachment(data: Data, mimeType: String, description: String?) async throws -> Attachment {
-        let formAttachment = FormAttachment(mimeType: mimeType, data: data, fileName: "file")
+    private func uploadAttachment(data: Data, utType: UTType, description: String?) async throws -> Attachment {
+        let formAttachment = FormAttachment(mimeType: utType.preferredMIMEType!, data: data, fileName: "file.\(utType.preferredFilenameExtension!)")
         let req = Client.upload(attachment: formAttachment, description: description)
         return try await mastodonController.run(req).0
     }

Tusker/Views/ContentTextView.swift

@@ -195,16 +195,39 @@ class ContentTextView: LinkTextView, BaseEmojiLabel {
 
     func getLinkAtPoint(_ point: CGPoint) -> (URL, NSRange)? {
         let locationInTextContainer = CGPoint(x: point.x - textContainerInset.left, y: point.y - textContainerInset.top)
+        if #available(iOS 16.0, *),
+           let textLayoutManager {
+            guard let fragment = textLayoutManager.textLayoutFragment(for: point),
+               let lineFragment = fragment.textLineFragments.first(where: { lineFragment in
+                   lineFragment.typographicBounds.offsetBy(dx: fragment.layoutFragmentFrame.minX, dy: fragment.layoutFragmentFrame.minY).contains(point)
+               }) else {
+                return nil
+            }
+            let charIndex = lineFragment.characterIndex(for: point)
+            
+            var range = NSRange()
+            guard let link = lineFragment.attributedString.attribute(.link, at: charIndex, longestEffectiveRange: &range, in: lineFragment.attributedString.fullRange) as? URL else {
+                return nil
+            }
+            // lineFragment.attributedString is the NSTextLayoutFragment's string, and so range is in its index space
+            // but we need to return a range in our whole attributedString's space, so convert it
+            let textLayoutFragmentStart = textLayoutManager.offset(from: textLayoutManager.documentRange.location, to: fragment.rangeInElement.location)
+            let rangeInSelf = NSRange(location: range.location + textLayoutFragmentStart, length: range.length)
+            return (link, rangeInSelf)
+        } else {
             var partialFraction: CGFloat = 0
             let characterIndex = layoutManager.characterIndex(for: locationInTextContainer, in: textContainer, fractionOfDistanceBetweenInsertionPoints: &partialFraction)
-        if characterIndex < textStorage.length && partialFraction < 1 {
+            guard characterIndex < textStorage.length && partialFraction < 1 else {
+                return nil
+            }
+            
             var range = NSRange()
-            if let link = textStorage.attribute(.link, at: characterIndex, longestEffectiveRange: &range, in: textStorage.fullRange) as? URL {
+            guard let link = textStorage.attribute(.link, at: characterIndex, longestEffectiveRange: &range, in: textStorage.fullRange) as? URL else {
+                return nil
+            }
             return (link, range)
         }
     }
-        return nil
-    }
     
     func handleLinkTapped(url: URL, text: String) {
         if let mention = getMention(for: url, text: text) {
@@ -297,9 +320,26 @@ extension ContentTextView: UIContextMenuInteractionDelegate {
         
         // Determine the line rects that the link takes up in the coordinate space of this view.
         var rects = [CGRect]()
+        if #available(iOS 16.0, *),
+           let textLayoutManager,
+           let contentManager = textLayoutManager.textContentManager {
+            // convert from NSRange to NSTextRange
+            // i have no idea under what circumstances any of these calls could fail
+            guard let startLoc = contentManager.location(contentManager.documentRange.location, offsetBy: range.location),
+                  let endLoc = contentManager.location(startLoc, offsetBy: range.length),
+                  let textRange = NSTextRange(location: startLoc, end: endLoc) else {
+                return nil
+            }
+            // .standard because i have no idea what the difference is
+            textLayoutManager.enumerateTextSegments(in: textRange, type: .standard, options: []) { range, rect, float, textContainer in
+                rects.append(rect)
+                return true
+            }
+        } else {
             layoutManager.enumerateEnclosingRects(forGlyphRange: range, withinSelectedGlyphRange: NSRange(location: NSNotFound, length: 0), in: textContainer) { (rect, stop) in
                 rects.append(rect)
             }
+        }
         
         // Try to create a snapshot view of this view to disply as the preview.
         // If a snapshot view cannot be created, we bail and use the system-provided preview.

Tusker/Views/Status/BaseStatusTableViewCell.swift

@@ -12,6 +12,7 @@ import Combine
 import AVKit
 
 protocol StatusTableViewCellDelegate: TuskerNavigationDelegate, MenuActionProvider {
+    // @available(iOS, obsoleted: 16.0)
     func statusCellCollapsedStateChanged(_ cell: BaseStatusTableViewCell)
 }
 
@@ -332,8 +333,12 @@ class BaseStatusTableViewCell: UITableViewCell {
 
     @IBAction func collapseButtonPressed() {
         setCollapsed(!collapsed, animated: true)
+        if #available(iOS 16.0, *) {
+            invalidateIntrinsicContentSize()
+        } else {
             delegate?.statusCellCollapsedStateChanged(self)
         }
+    }
     
     func setCollapsed(_ collapsed: Bool, animated: Bool) {
         self.collapsed = collapsed