Add menu-action to untranslate a translated status (IOS-103)

Mastodon/Protocol/Provider/DataSourceFacade+Status.swift

@@ -385,6 +385,9 @@ extension DataSourceFacade {
                 destination: .topLevel)
             _ = dependency.coordinator.present(scene: .editStatus(viewModel: editStatusViewModel), transition: .modal(animated: true))
 
+        case .showOriginal:
+            // do nothing, as the translation is reverted in `StatusTableViewCellDelegate` in `DataSourceProvider+StatusTableViewCellDelegate.swift`.
+            break
         case .followUser(_):
 
             guard let author = menuContext.author else { return }

Mastodon/Protocol/Provider/DataSourceProvider+StatusTableViewCellDelegate.swift

@@ -496,6 +496,14 @@ extension StatusTableViewCellDelegate where Self: DataSourceProvider & AuthConte
                     cell.invalidateIntrinsicContentSize()
                 }
             }
+
+            if case .showOriginal = action {
+                DispatchQueue.main.async {
+                    if let cell = cell as? StatusTableViewCell {
+                        cell.statusView.revertTranslation()
+                    }
+                }
+            }
                         
             try await DataSourceFacade.responseToMenuAction(
                 dependency: self,

MastodonSDK/Sources/MastodonUI/View/Content/StatusAuthorView.swift

@@ -166,10 +166,12 @@ extension StatusAuthorView {
             postActions.append(.editStatus)
         }
 
-        if let statusLanguage = menuContext.statusLanguage, menuContext.isTranslationEnabled, !menuContext.isTranslated {
-            postActions.append(
-                .translateStatus(.init(language: statusLanguage))
-            )
+        if let statusLanguage = menuContext.statusLanguage, menuContext.isTranslationEnabled {
+            if menuContext.isTranslated == false {
+                postActions.append(.translateStatus(.init(language: statusLanguage)))
+            } else {
+                postActions.append(.showOriginal)
+            }
         }
 
         postActions.append(.bookmarkStatus(.init(isBookmarking: menuContext.isBookmarking)))

MastodonSDK/Sources/MastodonUI/View/Content/StatusView+Configuration.swift

@@ -290,7 +290,7 @@ extension StatusView {
         viewModel.applicationName = applicationName
     }
     
-    func revertTranslation() {
+    public func revertTranslation() {
         guard let originalStatus = viewModel.originalStatus else { return }
         
         viewModel.translatedFromLanguage = nil

MastodonSDK/Sources/MastodonUI/View/Menu/MastodonMenu.swift

@@ -48,6 +48,7 @@ public enum MastodonMenu {
 extension MastodonMenu {
     public enum Action {
         case translateStatus(TranslateStatusActionContext)
+        case showOriginal
         case muteUser(MuteUserActionContext)
         case blockUser(BlockUserActionContext)
         case reportUser(ReportUserActionContext)
@@ -161,6 +162,16 @@ extension MastodonMenu {
                     delegate.menuAction(self)
                 }
                 return translateAction
+            case .showOriginal:
+                let action = LabeledAction(
+                    title: L10n.Common.Controls.Status.Translation.showOriginal,
+                    image: UIImage(systemName: "character.book.closed")
+                ) { [weak delegate] in
+                    guard let delegate = delegate else { return }
+                    delegate.menuAction(self)
+                }
+
+                return action
             case .editStatus:
                 let editStatusAction = LabeledAction(
                     title: L10n.Common.Controls.Actions.editPost,