Fix save draft sheet showing even when draft had no content

invalid

Tusker.xcodeproj/project.pbxproj

@@ -227,6 +227,7 @@
 		D6B053AB23BD2F1400A066FA /* AssetCollectionViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6B053A923BD2F1400A066FA /* AssetCollectionViewCell.swift */; };
 		D6B053AC23BD2F1400A066FA /* AssetCollectionViewCell.xib in Resources */ = {isa = PBXBuildFile; fileRef = D6B053AA23BD2F1400A066FA /* AssetCollectionViewCell.xib */; };
 		D6B053AE23BD322B00A066FA /* AssetPickerSheetContainerViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6B053AD23BD322B00A066FA /* AssetPickerSheetContainerViewController.swift */; };
+		D6B4A4FF2506B81A000C81C1 /* AccountDisplayNameLabel.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6B4A4FE2506B81A000C81C1 /* AccountDisplayNameLabel.swift */; };
 		D6B8DB342182A59300424AF7 /* UIAlertController+Visibility.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6B8DB332182A59300424AF7 /* UIAlertController+Visibility.swift */; };
 		D6BC874521961F73006163F1 /* Gifu.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D6BC874421961F73006163F1 /* Gifu.framework */; };
 		D6BC874621961F73006163F1 /* Gifu.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = D6BC874421961F73006163F1 /* Gifu.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
@@ -547,6 +548,7 @@
 		D6B053A923BD2F1400A066FA /* AssetCollectionViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AssetCollectionViewCell.swift; sourceTree = "<group>"; };
 		D6B053AA23BD2F1400A066FA /* AssetCollectionViewCell.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = AssetCollectionViewCell.xib; sourceTree = "<group>"; };
 		D6B053AD23BD322B00A066FA /* AssetPickerSheetContainerViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AssetPickerSheetContainerViewController.swift; sourceTree = "<group>"; };
+		D6B4A4FE2506B81A000C81C1 /* AccountDisplayNameLabel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AccountDisplayNameLabel.swift; sourceTree = "<group>"; };
 		D6B8DB332182A59300424AF7 /* UIAlertController+Visibility.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIAlertController+Visibility.swift"; sourceTree = "<group>"; };
 		D6BC874421961F73006163F1 /* Gifu.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = Gifu.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		D6BC8747219738E1006163F1 /* EnhancedTableViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EnhancedTableViewController.swift; sourceTree = "<group>"; };
@@ -1251,6 +1253,7 @@
 				D6403CC124A6B72D00E81C55 /* VisualEffectImageButton.swift */,
 				D6C99FC624FACFAB005C74D3 /* ActivityIndicatorView.swift */,
 				D686BBE224FBF8110068E6AA /* WrappedProgressView.swift */,
+				D6B4A4FE2506B81A000C81C1 /* AccountDisplayNameLabel.swift */,
 				D67C57A721E2649B00C3118B /* Account Detail */,
 				D67C57B021E28F9400C3118B /* Compose Status Reply */,
 				D626494023C122C800612E6E /* Asset Picker */,
@@ -1794,6 +1797,7 @@
 				D646C956213B365700269FB5 /* LargeImageExpandAnimationController.swift in Sources */,
 				D667E5F82135C3040057A976 /* Mastodon+Equatable.swift in Sources */,
 				D681E4D5246E2BC30053414F /* UnmuteConversationActivity.swift in Sources */,
+				D6B4A4FF2506B81A000C81C1 /* AccountDisplayNameLabel.swift in Sources */,
 				D67C57B421E2910700C3118B /* ComposeStatusReplyView.swift in Sources */,
 				D6B053A623BD2D0C00A066FA /* AssetCollectionViewController.swift in Sources */,
 				D62275A024F1677200B82A16 /* ComposeHostingController.swift in Sources */,

Tusker/CoreData/StatusMO.swift

@@ -124,9 +124,19 @@ extension StatusMO {
         self.uri = status.uri
         self.url = status.url
         self.visibility = status.visibility
-        self.account = container.account(for: status.account.id, in: context) ?? AccountMO(apiAccount: status.account, container: container, context: context)
+        if let existing = container.account(for: status.account.id, in: context) {
+            existing.updateFrom(apiAccount: status.account, container: container)
+            self.account = existing
+        } else {
+            self.account = AccountMO(apiAccount: status.account, container: container, context: context)
+        }
         if let reblog = status.reblog {
-            self.reblog = container.status(for: reblog.id, in: context) ?? StatusMO(apiStatus: reblog, container: container, context: context)
+            if let existing = container.status(for: reblog.id, in: context) {
+                existing.updateFrom(apiStatus: reblog, container: container)
+                self.reblog = existing
+            } else {
+                self.reblog = StatusMO(apiStatus: reblog, container: container, context: context)
+            }
         } else {
             self.reblog = nil
         }

Tusker/Screens/Compose/ComposeAttachmentsList.swift

@@ -44,45 +44,50 @@ struct ComposeAttachmentsList: View {
             }
             
             Button(action: self.addAttachment) {
-                HStack {
-                    addButtonImage
-                    Text("Add image or video")
-                }
-            }
-            .foregroundColor(.blue)
-            .disabled(!canAddAttachment)
-            .frame(height: cellHeight)
-            .popover(isPresented: $isShowingAssetPickerPopover, content: self.assetPickerPopover)
-            .contextMenu {
-                Button(action: self.createDrawing) {
-                    if #available(iOS 14.0, *) {
-                        Label("Draw Something", systemImage: "hand.draw")
-                    } else {
-                        HStack {
-                            Text("Draw Something")
-                            Image(systemName: "hand.draw")
-                        }
+                if #available(iOS 14.0, *) {
+                    Label("Add photo or video", systemImage: addButtonImageName)
+                } else {
+                    HStack {
+                        Image(systemName: addButtonImageName)
+                        Text("Add photo or video")
                     }
                 }
-                .disabled(!canAddAttachment)
             }
+            .disabled(!canAddAttachment)
+            .foregroundColor(.blue)
+            .frame(height: cellHeight / 2)
+            .popover(isPresented: $isShowingAssetPickerPopover, content: self.assetPickerPopover)
+            .listRowInsets(EdgeInsets(top: cellPadding / 2, leading: cellPadding / 2, bottom: cellPadding / 2, trailing: cellPadding / 2))
+            
+            Button(action: self.createDrawing) {
+                if #available(iOS 14.0, *) {
+                    Label("Draw something", systemImage: "hand.draw")
+                } else {
+                    HStack(alignment: .lastTextBaseline) {
+                        Image(systemName: "hand.draw")
+                        Text("Draw something")
+                    }
+                }
+            }
+            .disabled(!canAddAttachment)
+            .foregroundColor(.blue)
+            .frame(height: cellHeight / 2)
+            .listRowInsets(EdgeInsets(top: cellPadding / 2, leading: cellPadding / 2, bottom: cellPadding / 2, trailing: cellPadding / 2))
         }
         .frame(height: totalListHeight)
         .onAppear(perform: self.didAppear)
         .onReceive(draft.$attachments, perform: self.attachmentsChanged)
     }
     
-    private var addButtonImage: Image {
-        let name: String
+    private var addButtonImageName: String {
         switch colorScheme {
         case .dark:
-            name = "photo.fill"
+            return "photo.fill"
         case .light:
-            name = "photo"
+            return "photo"
         @unknown default:
-            name = "photo"
+            return "photo"
         }
-        return Image(systemName: name)
     }
     
     private var canAddAttachment: Bool {
@@ -90,15 +95,14 @@ struct ComposeAttachmentsList: View {
         case .pleroma:
             return true
         case .mastodon:
-            // todo: this technically allows invalid image/video combinations
-            return draft.attachments.count < 4
+            return draft.attachments.count < 4 && draft.attachments.allSatisfy { $0.data.type == .image }
         }
     }
     
     private var totalListHeight: CGFloat {
         let totalRowHeights = rowHeights.values.reduce(0, +)
         let totalPadding = CGFloat(draft.attachments.count) * cellPadding
-        let addButtonHeight = cellHeight + cellPadding
+        let addButtonHeight = cellHeight + cellPadding * 2
         return totalRowHeights + totalPadding + addButtonHeight
     }
     

Tusker/Screens/Compose/ComposeContainerView.swift

@@ -11,24 +11,18 @@ import Combine
 
 struct ComposeContainerView: View {
     let mastodonController: MastodonController
-    let vcWidthSubject: PassthroughSubject<CGFloat, Never>
     @ObservedObject var uiState: ComposeUIState
     
     init(
         mastodonController: MastodonController,
-        vcWidthSubject: PassthroughSubject<CGFloat, Never>,
         uiState: ComposeUIState
     ) {
         self.mastodonController = mastodonController
-        self.vcWidthSubject = vcWidthSubject
         self.uiState = uiState
     }
     
     var body: some View {
-        ComposeView(
-            draft: uiState.draft,
-            vcWidthSubject: vcWidthSubject
-        )
+        ComposeView(draft: uiState.draft)
         .environmentObject(mastodonController)
         .environmentObject(uiState)
     }

Tusker/Screens/Compose/ComposeCurrentAccount.swift

@@ -20,8 +20,7 @@ struct ComposeCurrentAccount: View {
         HStack(alignment: .top) {
             ComposeAvatarImageView(url: account.avatar)
             VStack(alignment: .leading) {
-                Text(verbatim: account.displayName)
-                    .font(.system(size: 20, weight: .semibold))
+                AccountDisplayNameLabel(account: mastodonController.persistentContainer.account(for: account.id)!, fontSize: 20)
                     .lineLimit(1)
                 
                 Text(verbatim: "@\(account.acct)")

Tusker/Screens/Compose/ComposeHostingController.swift

@@ -16,14 +16,14 @@ class ComposeHostingController: UIHostingController<ComposeContainerView> {
     let mastodonController: MastodonController
     
     let uiState: ComposeUIState
-    // storing the width in the UI state and having SwiftUI listen to it via @ObservedObject doesn't work
-    // it ends up spinning forever
-    let widthSubject = PassthroughSubject<CGFloat, Never>()
     
     var draft: Draft { uiState.draft }
     
     private var cancellables = [AnyCancellable]()
     
+    private var keyboardHeight: CGFloat = 0
+    private var toolbarHeight: CGFloat = 44
+    
     private var mainToolbar: UIToolbar!
     private var inputAccessoryToolbar: UIToolbar!
     private var visibilityBarButtonItems = [UIBarButtonItem]()
@@ -42,7 +42,6 @@ class ComposeHostingController: UIHostingController<ComposeContainerView> {
         // to use as the UIHostingController type parameter
         let container = ComposeContainerView(
             mastodonController: mastodonController,
-            vcWidthSubject: widthSubject,
             uiState: uiState
         )
         super.init(rootView: container)
@@ -58,7 +57,7 @@ class ComposeHostingController: UIHostingController<ComposeContainerView> {
         NotificationCenter.default.addObserver(self, selector: #selector(keyboardDidHide(_:)), name: UIResponder.keyboardDidHideNotification, object: nil)
         
         // add the height of the toolbar itself to the bottom of the safe area so content inside SwiftUI ScrollView doesn't underflow it
-        additionalSafeAreaInsets = UIEdgeInsets(top: 0, left: 0, bottom: 44, right: 0)
+        updateAdditionalSafeAreaInsets()
         
         pasteConfiguration = UIPasteConfiguration(forAccepting: CompositionAttachment.self)
         
@@ -82,12 +81,6 @@ class ComposeHostingController: UIHostingController<ComposeContainerView> {
         fatalError("init(coder:) has not been implemented")
     }
     
-    override func viewDidLayoutSubviews() {
-        super.viewDidLayoutSubviews()
-        
-        widthSubject.send(view.bounds.width)
-    }
-    
     override func viewWillAppear(_ animated: Bool) {
         super.viewWillAppear(animated)
         
@@ -116,9 +109,15 @@ class ComposeHostingController: UIHostingController<ComposeContainerView> {
         let toolbar = UIToolbar()
         toolbar.translatesAutoresizingMaskIntoConstraints = false
         
-        let visibilityItem = UIBarButtonItem(image: UIImage(systemName: draft.visibility.imageName), style: .plain, target: self, action: #selector(visibilityButtonPressed))
-        visibilityItem.accessibilityLabel = String(format: NSLocalizedString("Visibility: %@", comment: "compose visiblity accessibility label"), draft.visibility.displayName)
+        let visibilityAction: Selector?
+        if #available(iOS 14.0, *) {
+            visibilityAction = nil
+        } else {
+            visibilityAction = #selector(visibilityButtonPressed(_:))
+        }
+        let visibilityItem = UIBarButtonItem(image: UIImage(systemName: draft.visibility.imageName), style: .plain, target: self, action: visibilityAction)
         visibilityBarButtonItems.append(visibilityItem)
+        visibilityChanged(draft.visibility)
 
         toolbar.items = [
             UIBarButtonItem(title: "CW", style: .plain, target: self, action: #selector(cwButtonPressed)),
@@ -129,6 +128,9 @@ class ComposeHostingController: UIHostingController<ComposeContainerView> {
         return toolbar
     }
     
+    private func updateAdditionalSafeAreaInsets() {
+        additionalSafeAreaInsets = UIEdgeInsets(top: 0, left: 0, bottom: toolbarHeight + keyboardHeight, right: 0)
+    }
     
     @objc private func keyboardWillShow(_ notification: Foundation.Notification) {
         keyboardWillShow(accessoryView: inputAccessoryToolbar, notification: notification)
@@ -139,6 +141,17 @@ class ComposeHostingController: UIHostingController<ComposeContainerView> {
         
         accessoryView.alpha = 1
         accessoryView.isHidden = false
+        
+        // on iOS 14, SwiftUI safe area automatically includes the keyboard
+        if #available(iOS 14.0, *) {
+        } else {
+            let userInfo = notification.userInfo!
+            let frame = userInfo[UIResponder.keyboardFrameEndUserInfoKey] as! CGRect
+            // temporarily reset add'l safe area insets so we can access the default inset
+            additionalSafeAreaInsets = .zero
+            keyboardHeight = frame.height - view.safeAreaInsets.bottom - accessoryView.frame.height
+            updateAdditionalSafeAreaInsets()
+        }
     }
     
     @objc private func keyboardWillHide(_ notification: Foundation.Notification) {
@@ -171,6 +184,13 @@ class ComposeHostingController: UIHostingController<ComposeContainerView> {
         } completion: { (finished) in
             accessoryView.alpha = 1
         }
+        
+        // on iOS 14, SwiftUI safe area automatically includes the keyboard
+        if #available(iOS 14.0, *) {
+        } else {
+            keyboardHeight = 0
+            updateAdditionalSafeAreaInsets()
+        }
     }
     
     @objc private func keyboardDidHide(_ notification: Foundation.Notification) {
@@ -185,6 +205,15 @@ class ComposeHostingController: UIHostingController<ComposeContainerView> {
         for item in visibilityBarButtonItems {
             item.image = UIImage(systemName: newVisibility.imageName)
             item.accessibilityLabel = String(format: NSLocalizedString("Visibility: %@", comment: "compose visiblity accessibility label"), draft.visibility.displayName)
+            if #available(iOS 14.0, *) {
+                let elements = Status.Visibility.allCases.map { (visibility) -> UIMenuElement in
+                    let state = visibility == newVisibility ? UIMenuElement.State.on : .off
+                    return UIAction(title: visibility.displayName, image: UIImage(systemName: visibility.unfilledImageName), identifier: nil, discoverabilityTitle: nil, attributes: [], state: state) { (_) in
+                        self.draft.visibility = visibility
+                    }
+                }
+                item.menu = UIMenu(title: "", image: nil, identifier: nil, options: [], children: elements)
+            }
         }
     }
     
@@ -194,7 +223,8 @@ class ComposeHostingController: UIHostingController<ComposeContainerView> {
         case .pleroma:
             return true
         case .mastodon:
-            // todo: this technically allows invalid video/image combinations
+            guard draft.attachments.allSatisfy({ $0.data.type == .image }) else { return false }
+            // todo: if providers are videos, this technically allows invalid video/image combinations
             return itemProviders.count + draft.attachments.count <= 4
         }
     }
@@ -217,12 +247,15 @@ class ComposeHostingController: UIHostingController<ComposeContainerView> {
     }
     
     @objc func visibilityButtonPressed(_ sender: UIBarButtonItem) {
-        let alertController = UIAlertController(currentVisibility: draft.visibility) { (visibility) in
-            guard let visibility = visibility else { return }
-            self.draft.visibility = visibility
-        }
-        alertController.popoverPresentationController?.barButtonItem = sender
-        present(alertController, animated: true)
+//        if #available(iOS 14.0, *) {
+//        } else {
+            let alertController = UIAlertController(currentVisibility: draft.visibility) { (visibility) in
+                guard let visibility = visibility else { return }
+                self.draft.visibility = visibility
+            }
+            alertController.popoverPresentationController?.barButtonItem = sender
+            present(alertController, animated: true)
+//        }
     }
     
     @objc func draftsButtonPresed() {
@@ -233,17 +266,6 @@ class ComposeHostingController: UIHostingController<ComposeContainerView> {
     
 }
 
-extension ComposeHostingController {
-    struct EnvironmentWrappingView<Content: View, EnvironmentObject: ObservableObject>: View {
-        let content: Content
-        let environmentObject: EnvironmentObject
-        
-        var body: some View {
-            content.environmentObject(environmentObject)
-        }
-    }
-}
-
 extension ComposeHostingController: ComposeUIStateDelegate {
     var assetPickerDelegate: AssetPickerViewControllerDelegate? { self }
     

Tusker/Screens/Compose/ComposeReplyContentView.swift

@@ -12,37 +12,33 @@ struct ComposeReplyContentView: UIViewRepresentable {
     typealias UIViewType = ComposeReplyContentTextView
     
     let status: StatusMO
-    let maxWidth: CGFloat
     
     @EnvironmentObject var mastodonController: MastodonController
     
+    let heightChanged: (CGFloat) -> Void
+    
     func makeUIView(context: Context) -> ComposeReplyContentTextView {
         let view = ComposeReplyContentTextView()
         view.overrideMastodonController = mastodonController
         view.setTextFrom(status: status)
-        view.isScrollEnabled = false
         view.isUserInteractionEnabled = false
         view.backgroundColor = .clear
-        view.maxWidth = maxWidth
+        
         return view
     }
     
     func updateUIView(_ uiView: ComposeReplyContentTextView, context: Context) {
-        uiView.constraint.constant = maxWidth
+        uiView.heightChanged = heightChanged
     }
 }
 
 class ComposeReplyContentTextView: StatusContentTextView {
+    var heightChanged: ((CGFloat) -> Void)?
     
-    var maxWidth: CGFloat!
-    var constraint: NSLayoutConstraint!
-    
-    override func didMoveToSuperview() {
-        super.didMoveToSuperview()
+    override func layoutSubviews() {
+        super.layoutSubviews()
         
-        translatesAutoresizingMaskIntoConstraints = false
-        constraint = widthAnchor.constraint(lessThanOrEqualToConstant: maxWidth)
-        constraint.isActive = true
+        heightChanged?(contentSize.height)
     }
     
 }

Tusker/Screens/Compose/ComposeReplyView.swift

@@ -10,8 +10,10 @@ import SwiftUI
 
 struct ComposeReplyView: View {
     let status: StatusMO
-    let maxWidth: CGFloat
     let stackPadding: CGFloat
+    let outerMinY: CGFloat
+    
+    @State private var contentHeight: CGFloat?
     
     private let horizSpacing: CGFloat = 8
     
@@ -22,8 +24,7 @@ struct ComposeReplyView: View {
             
             VStack(alignment: .leading, spacing: 0) {
                 HStack {
-                    Text(verbatim: status.account.displayName)
-                        .font(.system(size: 17, weight: .semibold))
+                    AccountDisplayNameLabel(account: status.account, fontSize: 17)
                         .lineLimit(1)
                         .layoutPriority(1)
                     
@@ -35,7 +36,10 @@ struct ComposeReplyView: View {
                     Spacer()
                 }
                 
-                ComposeReplyContentView(status: status, maxWidth: maxWidth - 50 - horizSpacing + 4)
+                ComposeReplyContentView(status: status) { (newHeight) in
+                    self.contentHeight = newHeight
+                }
+                    .frame(height: contentHeight)
                     .offset(x: -4, y: -8)
                     .padding(.bottom, -8)
             }
@@ -45,8 +49,11 @@ struct ComposeReplyView: View {
     }
     
     private func replyAvatarImage(geometry: GeometryProxy) -> some View {
-        let scrollOffset = geometry.frame(in: .named("outer")).minY - stackPadding
-        let offset = min(max(-scrollOffset, 0), geometry.size.height - 50 - 8)
+        // using named coordinate spaces produces an incorrect scroll offset on iOS 13,
+        // so simply compare the geometry inside and outside the scroll view in the global coordinate space
+        var scrollOffset = outerMinY - geometry.frame(in: .global).minY
+        scrollOffset += stackPadding
+        let offset = min(max(scrollOffset, 0), geometry.size.height - 50 - stackPadding)
         return ComposeAvatarImageView(url: status.account.avatar)
             .offset(x: 0, y: offset)
     }

Tusker/Screens/Compose/ComposeView.swift

@@ -12,10 +12,8 @@ import Combine
 
 struct ComposeView: View {
     @ObservedObject var draft: Draft
-    let vcWidthSubject: PassthroughSubject<CGFloat, Never>
     
     @EnvironmentObject var mastodonController: MastodonController
-    @State var viewControllerWidth: CGFloat = 0
     @EnvironmentObject var uiState: ComposeUIState
     @State var isPosting = false
     @State var postProgress: Double = 0
@@ -25,12 +23,8 @@ struct ComposeView: View {
     
     private let stackPadding: CGFloat = 8
     
-    init(
-        draft: Draft,
-        vcWidthSubject: PassthroughSubject<CGFloat, Never>
-    ) {
+    init(draft: Draft) {
         self.draft = draft
-        self.vcWidthSubject = vcWidthSubject
     }
     
     var charactersRemaining: Int {
@@ -63,17 +57,17 @@ struct ComposeView: View {
     
     var mostOfTheBody: some View {
         ZStack(alignment: .top) {
-            ScrollView(.vertical) {
-                mainStack
+            GeometryReader { (outer) in
+                ScrollView(.vertical) {
+                    mainStack(outerMinY: outer.frame(in: .global).minY)
+                }
             }
             
             // can't use SwiftUI.ProgressView because there's no UIProgressView.Style.bar equivalent, see FB8587149
             WrappedProgressView(value: postProgress, total: postTotalProgress)
         }
-        .coordinateSpace(name: "outer")
         .onAppear(perform: self.didAppear)
         .navigationBarTitle("Compose")
-        .onReceive(vcWidthSubject) { self.viewControllerWidth = $0 }
         .actionSheet(isPresented: $uiState.isShowingSaveDraftSheet, content: self.saveAndCloseSheet)
         .alert(isPresented: $isShowingPostErrorAlert) {
             Alert(
@@ -84,14 +78,14 @@ struct ComposeView: View {
         }
     }
     
-    var mainStack: some View {
+    func mainStack(outerMinY: CGFloat) -> some View {
         VStack(alignment: .leading, spacing: 8) {
             if let id = draft.inReplyToID,
                let status = mastodonController.persistentContainer.status(for: id) {
                 ComposeReplyView(
                     status: status,
-                    maxWidth: viewControllerWidth - (2 * stackPadding),
-                    stackPadding: stackPadding
+                    stackPadding: stackPadding,
+                    outerMinY: outerMinY
                 )
             }
             
@@ -151,7 +145,13 @@ struct ComposeView: View {
             // draft is already stored in drafts manager, drafts manager is saved by ComposeHostingController.viewWillDisappear
             uiState.delegate?.dismissCompose()
         } else {
-            uiState.isShowingSaveDraftSheet = true
+            // if the draft doesn't have content, it doesn't need to be saved
+            if draft.hasContent {
+                uiState.isShowingSaveDraftSheet = true
+            } else {
+                DraftsManager.shared.remove(draft)
+                uiState.delegate?.dismissCompose()
+            }
         }
     }
     

Tusker/Screens/Compose/MainComposeTextView.swift

@@ -64,7 +64,14 @@ struct MainComposeWrappedTextView: UIViewRepresentable {
         textView.textContainer.lineBreakMode = .byWordWrapping
         context.coordinator.textView = textView
         
-        let visibilityButton = UIBarButtonItem(image: UIImage(systemName: visibility.imageName), style: .plain, target: nil, action: #selector(ComposeHostingController.visibilityButtonPressed(_:)))
+        let visibilityAction: Selector?
+        if #available(iOS 14.0, *) {
+            visibilityAction = nil
+        } else {
+            visibilityAction = #selector(ComposeHostingController.visibilityButtonPressed(_:))
+        }
+        let visibilityButton = UIBarButtonItem(image: UIImage(systemName: visibility.imageName), style: .plain, target: nil, action: visibilityAction)
+        updateVisibilityMenu(visibilityButton)
         let toolbar = UIToolbar()
         toolbar.translatesAutoresizingMaskIntoConstraints = false
         toolbar.items = [
@@ -118,16 +125,33 @@ struct MainComposeWrappedTextView: UIViewRepresentable {
         return formatButtons
     }
     
+    private func updateVisibilityMenu(_ visibilityButton: UIBarButtonItem) {
+        if #available(iOS 14.0, *) {
+            let elements = Status.Visibility.allCases.map { (visibility) -> UIMenuElement in
+                let state = visibility == self.visibility ? UIMenuElement.State.on : .off
+                return UIAction(title: visibility.displayName, image: UIImage(systemName: visibility.unfilledImageName), identifier: nil, discoverabilityTitle: nil, attributes: [], state: state) { (_) in
+                    self.uiState.draft.visibility = visibility
+                }
+            }
+            visibilityButton.menu = UIMenu(title: "", image: nil, identifier: nil, options: [], children: elements)
+        }
+    }
+    
     func updateUIView(_ uiView: UITextView, context: Context) {
         uiView.text = text
-        visibilityButton?.image = UIImage(systemName: visibility.imageName)
+        if let visibilityButton = visibilityButton {
+            visibilityButton.image = UIImage(systemName: visibility.imageName)
+            updateVisibilityMenu(visibilityButton)
+        }
         context.coordinator.text = $text
         context.coordinator.didChange = textDidChange
         context.coordinator.uiState = uiState
         
         if becomeFirstResponder {
-            uiView.becomeFirstResponder()
             DispatchQueue.main.async {
+                // calling becomeFirstResponder during the SwiftUI update causes a crash on iOS 13
+                uiView.becomeFirstResponder()
+                // can't update @State vars during the SwiftUI update
                 becomeFirstResponder = false
             }
         }

Tusker/Screens/Profile/ProfileViewController.swift

@@ -58,6 +58,16 @@ class ProfileViewController: UIPageViewController {
         
         view.backgroundColor = .systemBackground
 
+        let composeButton = UIBarButtonItem(barButtonSystemItem: .compose, target: self, action: #selector(composeMentioning))
+        if #available(iOS 14.0, *) {
+            composeButton.menu = UIMenu(title: "", image: nil, identifier: nil, options: [], children: [
+                UIAction(title: "Direct Message", image: UIImage(systemName: Status.Visibility.direct.unfilledImageName), identifier: nil, discoverabilityTitle: nil, attributes: [], state: .off, handler: { (_) in
+                    self.composeDirectMentioning()
+                })
+            ])
+        }
+        navigationItem.rightBarButtonItem = composeButton
+        
         headerView = ProfileHeaderView.create()
         headerView.delegate = self
 
@@ -161,6 +171,22 @@ class ProfileViewController: UIPageViewController {
             }
         }
     }
+    
+    // MARK: Interaction
+    
+    @objc private func composeMentioning() {
+        if let account = mastodonController.persistentContainer.account(for: accountID) {
+            compose(mentioningAcct: account.acct)
+        }
+    }
+    
+    private func composeDirectMentioning() {
+        if let account = mastodonController.persistentContainer.account(for: accountID) {
+            let draft = mastodonController.createDraft(mentioningAcct: account.acct)
+            draft.visibility = .direct
+            compose(editing: draft)
+        }
+    }
 
 }
 

Tusker/TuskerNavigationDelegate.swift

@@ -79,8 +79,7 @@ extension TuskerNavigationDelegate {
         show(ConversationTableViewController(for: statusID, state: state, mastodonController: apiController), sender: self)
     }
     
-    func compose(inReplyToID: String? = nil, mentioningAcct: String? = nil) {
-        let draft = apiController.createDraft(inReplyToID: inReplyToID, mentioningAcct: mentioningAcct)
+    func compose(editing draft: Draft) {
         let compose = ComposeHostingController(draft: draft, mastodonController: apiController)
         
         let vc = UINavigationController(rootViewController: compose)
@@ -88,6 +87,11 @@ extension TuskerNavigationDelegate {
         present(vc, animated: true)
     }
     
+    func compose(inReplyToID: String? = nil, mentioningAcct: String? = nil) {
+        let draft = apiController.createDraft(inReplyToID: inReplyToID, mentioningAcct: mentioningAcct)
+        compose(editing: draft)
+    }
+    
     func loadingLargeImage(url: URL, cache: ImageCache, description: String?, animatingFrom sourceView: UIImageView) -> LoadingLargeImageViewController {
         let vc = LoadingLargeImageViewController(url: url, cache: cache, imageDescription: description)
         vc.animationSourceView = sourceView

Tusker/Views/AccountDisplayNameLabel.swift

@@ -0,0 +1,109 @@
+//
+//  AccountDisplayNameLabel.swift
+//  Tusker
+//
+//  Created by Shadowfacts on 9/7/20.
+//  Copyright © 2020 Shadowfacts. All rights reserved.
+//
+
+import SwiftUI
+
+private let emojiRegex = try! NSRegularExpression(pattern: ":(\\w+):", options: [])
+
+struct AccountDisplayNameLabel: View {
+    let account: AccountMO
+    let fontSize: Int
+    @State var text: Text
+    @State var emojiRequests = [ImageCache.Request]()
+    
+    init(account: AccountMO, fontSize: Int) {
+        self.account = account
+        self.fontSize = fontSize
+        self._text = State(initialValue: Text(verbatim: account.displayName))
+    }
+    
+    var body: some View {
+        if #available(iOS 14.0, *) {
+            text
+                .font(.system(size: CGFloat(fontSize), weight: .semibold))
+                .onAppear(perform: self.loadEmojis)
+        } else {
+            text
+                .font(.system(size: CGFloat(fontSize), weight: .semibold))
+        }
+    }
+    
+    // embedding Image inside Text is only available on iOS 14
+    @available(iOS 14.0, *)
+    private func loadEmojis() {
+        let fullRange = NSRange(account.displayName.startIndex..., in: account.displayName)
+        let matches = emojiRegex.matches(in: account.displayName, options: [], range: fullRange)
+        guard !matches.isEmpty else { return }
+        
+        let emojiImages = CachedDictionary<Image>(name: "AcccountDisplayNameLabel Emoji Images")
+        
+        let group = DispatchGroup()
+        
+        for emoji in account.emojis {
+            guard matches.contains(where: { (match) in
+                let matchShortcode = (account.displayName as NSString).substring(with: match.range(at: 1))
+                return emoji.shortcode == matchShortcode
+            }) else {
+                continue
+            }
+            
+            group.enter()
+            let request = ImageCache.emojis.get(emoji.url) { (data) in
+                defer { group.leave() }
+                guard let data = data, let image = UIImage(data: data) else { return }
+                
+                let size = CGSize(width: fontSize, height: fontSize)
+                let renderer = UIGraphicsImageRenderer(size: size)
+                let resized = renderer.image { (ctx) in
+                    image.draw(in: CGRect(origin: .zero, size: size))
+                }
+                
+                emojiImages[emoji.shortcode] = Image(uiImage: resized)
+            }
+            if let request = request {
+                emojiRequests.append(request)
+            }
+        }
+        
+        group.notify(queue: .main) {
+            var text: Text?
+            
+            var endIndex = account.displayName.utf16.count
+            
+            // iterate backwards as to not alter the indices of earlier matches
+            for match in matches.reversed() {
+                let shortcode = (account.displayName as NSString).substring(with: match.range(at: 1))
+                guard let image = emojiImages[shortcode] else { continue }
+                
+                let afterCurrentMatch = (account.displayName as NSString).substring(with: NSRange(location: match.range.upperBound, length: endIndex - match.range.upperBound))
+                
+                if let subsequent = text {
+                    text = Text(image) + Text(verbatim: afterCurrentMatch) + subsequent
+                } else {
+                    text = Text(image) + Text(verbatim: afterCurrentMatch)
+                }
+                
+                endIndex = match.range.lowerBound
+            }
+            
+            let beforeLastMatch = (account.displayName as NSString).substring(to: endIndex)
+            
+            if let text = text {
+                self.text = Text(verbatim: beforeLastMatch) + text
+            } else {
+                self.text = Text(verbatim: beforeLastMatch)
+            }
+        }
+    }
+}
+
+//struct AccountDisplayNameLabel_Previews: PreviewProvider {
+//    static var previews: some View {
+//        AccountDisplayNameLabel()
+//    }
+//}

Tusker/Views/Status/ConversationMainStatusTableViewCell.xib

@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="17147" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="17154" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
     <device id="retina4_7" orientation="portrait" appearance="light"/>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="17120"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="17124"/>
         <capability name="Image references" minToolsVersion="12.0"/>
         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
         <capability name="System colors in document resources" minToolsVersion="11.0"/>
@@ -113,7 +113,7 @@
                         <stackView opaque="NO" contentMode="scaleToFill" spacing="8" translatesAutoresizingMaskIntoConstraints="NO" id="HZv-qj-gi6">
                             <rect key="frame" x="0.0" y="188.5" width="142" height="18"/>
                             <subviews>
-                                <button opaque="NO" contentMode="scaleToFill" verticalHuggingPriority="252" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="yyj-Bs-Vjq">
+                                <button opaque="NO" contentMode="scaleToFill" verticalHuggingPriority="252" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" pointerInteraction="YES" translatesAutoresizingMaskIntoConstraints="NO" id="yyj-Bs-Vjq">
                                     <rect key="frame" x="0.0" y="0.0" width="75" height="18"/>
                                     <constraints>
                                         <constraint firstAttribute="height" constant="18" id="F9W-LW-swd"/>
@@ -125,7 +125,7 @@
                                         <action selector="totalFavoritesPressed" destination="iN0-l3-epB" eventType="touchUpInside" id="D3Y-YB-bqP"/>
                                     </connections>
                                 </button>
-                                <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="dem-vG-cPB">
+                                <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" pointerInteraction="YES" translatesAutoresizingMaskIntoConstraints="NO" id="dem-vG-cPB">
                                     <rect key="frame" x="83" y="0.0" width="59" height="18"/>
                                     <constraints>
                                         <constraint firstAttribute="height" constant="18" id="k0P-W7-wMF"/>
@@ -247,7 +247,7 @@
         </view>
     </objects>
     <resources>
-        <image name="arrowshape.turn.up.left.fill" catalog="system" width="128" height="104"/>
+        <image name="arrowshape.turn.up.left.fill" catalog="system" width="128" height="106"/>
         <image name="chevron.down" catalog="system" width="128" height="72"/>
         <image name="ellipsis" catalog="system" width="128" height="37"/>
         <image name="globe" catalog="system" width="128" height="121"/>