Add status edit history view

Closes #321

Packages/ComposeUI/Sources/ComposeUI/API/PostService.swift

@@ -15,20 +15,18 @@ class PostService: ObservableObject {
     private let mastodonController: ComposeMastodonContext
     private let config: ComposeUIConfig
     private let draft: Draft
-    let totalSteps: Int
     
     @Published var currentStep = 1
+    @Published private(set) var totalSteps = 2
     
     init(mastodonController: ComposeMastodonContext, config: ComposeUIConfig, draft: Draft) {
         self.mastodonController = mastodonController
         self.config = config
         self.draft = draft
-        // 2 steps (request data, then upload) for each attachment
-        self.totalSteps = 2 + (draft.attachments.count * 2)
     }
     
     func post() async throws {
-        guard draft.hasContent else {
+        guard draft.hasContent || draft.editedStatusID != nil else {
             return
         }
         
@@ -37,14 +35,41 @@ class PostService: ObservableObject {
         
         let uploadedAttachments = try await uploadAttachments()
         
-        let contentWarning = draft.contentWarningEnabled ? draft.contentWarning : nil
+        let contentWarning = draft.contentWarningEnabled ? draft.contentWarning : ""
-        let sensitive = contentWarning != nil
+        let sensitive = !contentWarning.isEmpty
         
-        let request = Client.createStatus(
+        let request: Request<Status>
+        
+        if let editedStatusID = draft.editedStatusID {
+            if mastodonController.instanceFeatures.needsEditAttachmentsInSeparateRequest {
+                await updateEditedAttachments()
+            }
+            
+            request = Client.editStatus(
+                id: editedStatusID,
+                text: textForPosting(),
+                contentType: config.contentType,
+                spoilerText: contentWarning,
+                sensitive: sensitive,
+                language: mastodonController.instanceFeatures.createStatusWithLanguage ? draft.language : nil,
+                mediaIDs: uploadedAttachments,
+                mediaAttributes: draft.draftAttachments.compactMap {
+                    if let id = $0.editedAttachmentID {
+                        return EditStatusMediaAttributes(id: id, description: $0.attachmentDescription, focus: nil)
+                    } else {
+                        return nil
+                    }
+                },
+                poll: draft.poll.map {
+                    EditPollParameters(options: $0.pollOptions.map(\.text), expiresIn: Int($0.duration), multiple: $0.multiple)
+                }
+            )
+        } else {
+            request = Client.createStatus(
                 text: textForPosting(),
                 contentType: config.contentType,
                 inReplyTo: draft.inReplyToID,
-            media: uploadedAttachments,
+                mediaIDs: uploadedAttachments,
                 sensitive: sensitive,
                 spoilerText: contentWarning,
                 visibility: draft.visibility,
@@ -54,18 +79,32 @@ class PostService: ObservableObject {
                 pollMultiple: draft.poll?.multiple,
                 localOnly: mastodonController.instanceFeatures.localOnlyPosts ? draft.localOnly : nil
             )
+        }
+        
         do {
-            let (_, _) = try await mastodonController.run(request)
+            let (status, _) = try await mastodonController.run(request)
             currentStep += 1
+            mastodonController.storeCreatedStatus(status)
         } catch let error as Client.Error {
             throw Error.posting(error)
         }
     }
     
-    private func uploadAttachments() async throws -> [Attachment] {
+    private func uploadAttachments() async throws -> [String] {
-        var attachments: [Attachment] = []
+        // 2 steps (request data, then upload) for each attachment
+        self.totalSteps += 2 * draft.attachments.count
+        
+        var attachments: [String] = []
         attachments.reserveCapacity(draft.attachments.count)
         for (index, attachment) in draft.draftAttachments.enumerated() {
+            // if this attachment already exists and is being edited, we don't do anything
+            // edits to the description are handled as part of the edit status request
+            if let editedAttachmentID = attachment.editedAttachmentID {
+                attachments.append(editedAttachmentID)
+                currentStep += 2
+                continue
+            }
+            
             let data: Data
             let utType: UTType
             do {
@@ -76,7 +115,7 @@ class PostService: ObservableObject {
             }
             do {
                 let uploaded = try await uploadAttachment(data: data, utType: utType, description: attachment.attachmentDescription)
-                attachments.append(uploaded)
+                attachments.append(uploaded.id)
                 currentStep += 1
             } catch let error as Client.Error {
                 throw Error.attachmentUpload(index: index, cause: error)
@@ -117,6 +156,17 @@ class PostService: ObservableObject {
         return text
     }
     
+    // only needed for akkoma, not used on regular mastodon
+    private func updateEditedAttachments() async {
+        for attachment in draft.draftAttachments {
+            guard let id = attachment.editedAttachmentID else {
+                continue
+            }
+            let req = Client.updateAttachment(id: id, description: attachment.attachmentDescription, focus: nil)
+            _ = try? await mastodonController.run(req)
+        }
+    }
+    
     enum Error: Swift.Error, LocalizedError {
         case attachmentData(index: Int, cause: AttachmentData.Error)
         case attachmentUpload(index: Int, cause: Client.Error)

Packages/ComposeUI/Sources/ComposeUI/ComposeMastodonContext.swift

@@ -23,4 +23,6 @@ public protocol ComposeMastodonContext {
     func cachedRelationship(for accountID: String) -> RelationshipProtocol?
     @MainActor
     func searchCachedHashtags(query: String) -> [Hashtag]
+    
+    func storeCreatedStatus(_ status: Status)
 }

Packages/ComposeUI/Sources/ComposeUI/Controllers/AttachmentRowController.swift

@@ -25,7 +25,7 @@ class AttachmentRowController: ViewController {
     init(parent: ComposeController, attachment: DraftAttachment) {
         self.parent = parent
         self.attachment = attachment
-        self.thumbnailController = AttachmentThumbnailController(attachment: attachment)
+        self.thumbnailController = AttachmentThumbnailController(attachment: attachment, parent: parent)
         
         descriptionObservation = attachment.observe(\.attachmentDescription, changeHandler: { [unowned self] _, _ in
             // the faultingState is non-zero for objects that are being cascade deleted when the draft is deleted

Packages/ComposeUI/Sources/ComposeUI/Controllers/AttachmentThumbnailController.swift

@@ -11,14 +11,16 @@ import Photos
 import TuskerComponents
 
 class AttachmentThumbnailController: ViewController {
+    unowned let parent: ComposeController
     let attachment: DraftAttachment
     
     @Published private var image: UIImage?
     @Published private var gifController: GIFController?
     @Published private var fullSize: Bool = false
     
-    init(attachment: DraftAttachment) {
+    init(attachment: DraftAttachment, parent: ComposeController) {
         self.attachment = attachment
+        self.parent = parent
     }
     
     func loadImageIfNecessary(fullSize: Bool) {
@@ -28,6 +30,24 @@ class AttachmentThumbnailController: ViewController {
         self.fullSize = fullSize
         
         switch attachment.data {
+        case .editing(_, let kind, let url):
+            switch kind {
+            case .image:
+                Task { @MainActor in
+                    self.image = await parent.fetchAttachment(url)
+                }
+                
+            case .video, .gifv:
+                let asset = AVURLAsset(url: url)
+                let imageGenerator = AVAssetImageGenerator(asset: asset)
+                if let cgImage = try? imageGenerator.copyCGImage(at: .zero, actualTime: nil) {
+                    self.image = UIImage(cgImage: cgImage)
+                }
+
+            case .audio, .unknown:
+                break
+            }
+            
         case .asset(let id):
             guard let asset = PHAsset.fetchAssets(withLocalIdentifiers: [id], options: nil).firstObject else {
                 return

Packages/ComposeUI/Sources/ComposeUI/Controllers/ComposeController.swift

@@ -12,6 +12,7 @@ import TuskerComponents
 import MatchedGeometryPresentation
 
 public final class ComposeController: ViewController {
+    public typealias FetchAttachment = (URL) async  -> UIImage?
     public typealias FetchStatus = (String) -> (any StatusProtocol)?
     public typealias DisplayNameLabel = (any AccountProtocol, Font.TextStyle, CGFloat) -> AnyView
     public typealias CurrentAccountContainerView = (AnyView) -> AnyView
@@ -22,6 +23,7 @@ public final class ComposeController: ViewController {
     @Published public var config: ComposeUIConfig
     @Published public var mastodonController: ComposeMastodonContext
     let fetchAvatar: AvatarImageView.FetchAvatar
+    let fetchAttachment: FetchAttachment
     let fetchStatus: FetchStatus
     let displayNameLabel: DisplayNameLabel
     let currentAccountContainerView: CurrentAccountContainerView
@@ -64,11 +66,12 @@ public final class ComposeController: ViewController {
     }
     
     var postButtonEnabled: Bool {
-        draft.hasContent
+        draft.editedStatusID != nil ||
+            (draft.hasContent
                 && charactersRemaining >= 0
                 && !isPosting
                 && attachmentsListController.isValid
-            && isPollValid
+                && isPollValid)
     }
     
     private var isPollValid: Bool {
@@ -79,6 +82,8 @@ public final class ComposeController: ViewController {
         if let id = draft.inReplyToID,
            let status = fetchStatus(id) {
             return "Reply to @\(status.account.acct)"
+        } else if draft.editedStatusID != nil {
+            return "Edit Post"
         } else {
             return "New Post"
         }
@@ -89,6 +94,7 @@ public final class ComposeController: ViewController {
         config: ComposeUIConfig,
         mastodonController: ComposeMastodonContext,
         fetchAvatar: @escaping AvatarImageView.FetchAvatar,
+        fetchAttachment: @escaping FetchAttachment,
         fetchStatus: @escaping FetchStatus,
         displayNameLabel: @escaping DisplayNameLabel,
         currentAccountContainerView: @escaping CurrentAccountContainerView = { $0 },
@@ -99,6 +105,7 @@ public final class ComposeController: ViewController {
         self.config = config
         self.mastodonController = mastodonController
         self.fetchAvatar = fetchAvatar
+        self.fetchAttachment = fetchAttachment
         self.fetchStatus = fetchStatus
         self.displayNameLabel = displayNameLabel
         self.currentAccountContainerView = currentAccountContainerView
@@ -170,7 +177,7 @@ public final class ComposeController: ViewController {
     
     func postStatus() {
         guard !isPosting,
-              draft.hasContent else {
+              draft.editedStatusID != nil || draft.hasContent else {
             return
         }
         
@@ -396,20 +403,27 @@ public final class ComposeController: ViewController {
                     .font(.system(size: 17, weight: .regular))
             }
             .confirmationDialog("Are you sure?", isPresented: $controller.isShowingSaveDraftSheet) {
+                // edit drafts can't be saved
+                if draft.editedStatusID == nil {
                     Button(action: { controller.cancel(deleteDraft: false) }) {
                         Text("Save Draft")
                     }
                     Button(role: .destructive, action: { controller.cancel(deleteDraft: true) }) {
                         Text("Delete Draft")
                     }
+                } else {
+                    Button(role: .destructive, action: { controller.cancel(deleteDraft: true) }) {
+                        Text("Cancel Edit")
+                    }
+                }
             }
         }
         
         @ViewBuilder
         private var postButton: some View {
-            if draft.hasContent || !controller.config.allowSwitchingDrafts {
+            if draft.hasContent || draft.editedStatusID != nil || !controller.config.allowSwitchingDrafts {
                 Button(action: controller.postStatus) {
-                    Text("Post")
+                    Text(draft.editedStatusID == nil ? "Post" : "Edit")
                 }
                 .keyboardShortcut(.return, modifiers: .command)
                 .disabled(!controller.postButtonEnabled)

Packages/ComposeUI/Sources/ComposeUI/Controllers/DraftsController.swift

@@ -119,10 +119,18 @@ class DraftsController: ViewController {
 
 private struct DraftRow: View {
     @ObservedObject var draft: Draft
+    @EnvironmentObject private var controller: DraftsController
     
     var body: some View {
         HStack {
             VStack(alignment: .leading) {
+                if draft.editedStatusID != nil {
+                    // shouldn't happen unless the app crashed/was killed during an edit
+                    Text("Edit")
+                        .font(.body.bold())
+                        .foregroundColor(.orange)
+                }
+                
                 if draft.contentWarningEnabled {
                     Text(draft.contentWarning)
                         .font(.body.bold())
@@ -134,7 +142,7 @@ private struct DraftRow: View {
                 
                 HStack(spacing: 8) {
                     ForEach(draft.draftAttachments) { attachment in
-                        ControllerView(controller: { AttachmentThumbnailController(attachment: attachment) })
+                        ControllerView(controller: { AttachmentThumbnailController(attachment: attachment, parent: controller.parent) })
                             .aspectRatio(contentMode: .fit)
                             .clipShape(RoundedRectangle(cornerRadius: 5))
                             .frame(height: 50)

Packages/ComposeUI/Sources/ComposeUI/Controllers/ToolbarController.swift

@@ -59,10 +59,12 @@ class ToolbarController: ViewController {
                     MenuPicker(selection: $draft.visibility, options: ToolbarController.visibilityOptions, buttonStyle: .iconOnly)
                     // the button has a bunch of extra space by default, but combined with what we add it's too much
                         .padding(.horizontal, -8)
+                        .disabled(draft.editedStatusID != nil)
                     
                     if composeController.mastodonController.instanceFeatures.localOnlyPosts {
                         localOnlyPicker
                             .padding(.horizontal, -8)
+                            .disabled(draft.editedStatusID != nil)
                     }
                     
                     if let currentInput = composeController.currentInput,

Packages/ComposeUI/Sources/ComposeUI/CoreData/Draft.swift

@@ -23,6 +23,7 @@ public class Draft: NSManagedObject, Identifiable {
     @NSManaged public var accountID: String
     @NSManaged public var contentWarning: String
     @NSManaged public var contentWarningEnabled: Bool
+    @NSManaged public var editedStatusID: String?
     @NSManaged public var id: UUID
     @NSManaged public var initialText: String
     @NSManaged public var inReplyToID: String?

Packages/ComposeUI/Sources/ComposeUI/CoreData/DraftAttachment.swift

@@ -10,6 +10,7 @@ import PencilKit
 import UniformTypeIdentifiers
 import Photos
 import InstanceFeatures
+import Pachyderm
 
 private let decoder = PropertyListDecoder()
 private let encoder = PropertyListEncoder()
@@ -20,6 +21,9 @@ public final class DraftAttachment: NSManagedObject, Identifiable {
     @NSManaged internal var assetID: String?
     @NSManaged public var attachmentDescription: String
     @NSManaged internal private(set) var drawingData: Data?
+    @NSManaged public var editedAttachmentID: String?
+    @NSManaged private var editedAttachmentKindString: String?
+    @NSManaged public var editedAttachmentURL: URL?
     @NSManaged public var fileURL: URL?
     @NSManaged internal var fileType: String?
     @NSManaged public var id: UUID
@@ -41,7 +45,9 @@ public final class DraftAttachment: NSManagedObject, Identifiable {
     }
     
     public var data: AttachmentData {
-        if let assetID {
+        if let editedAttachmentID {
+            return .editing(editedAttachmentID, editedAttachmentKind!, editedAttachmentURL!)
+        } else if let assetID {
             return .asset(assetID)
         } else if let drawing {
             return .drawing(drawing)
@@ -52,10 +58,20 @@ public final class DraftAttachment: NSManagedObject, Identifiable {
         }
     }
     
+    public var editedAttachmentKind: Attachment.Kind? {
+        get {
+            editedAttachmentKindString.flatMap(Attachment.Kind.init(rawValue:))
+        }
+        set {
+            editedAttachmentKindString = newValue?.rawValue
+        }
+    }
+    
     public enum AttachmentData {
         case asset(String)
         case drawing(PKDrawing)
         case file(URL, UTType)
+        case editing(String, Attachment.Kind, URL)
     }
     
     public override func prepareForDeletion() {
@@ -69,7 +85,18 @@ public final class DraftAttachment: NSManagedObject, Identifiable {
 
 extension DraftAttachment {
     var type: AttachmentType {
-        if let assetID {
+        if let editedAttachmentKind {
+            switch editedAttachmentKind {
+            case .image:
+                return .image
+            case .video:
+                return .video
+            case .gifv:
+                return .video
+            case .audio, .unknown:
+                return .unknown
+            }
+        } else if let assetID {
             guard let asset = PHAsset.fetchAssets(withLocalIdentifiers: [assetID], options: nil).firstObject else {
                 return .unknown
             }

Packages/ComposeUI/Sources/ComposeUI/CoreData/Drafts.xcdatamodeld/Drafts.xcdatamodel/contents

@@ -4,6 +4,7 @@
         <attribute name="accountID" attributeType="String"/>
         <attribute name="contentWarning" attributeType="String" defaultValueString=""/>
         <attribute name="contentWarningEnabled" attributeType="Boolean" defaultValueString="NO" usesScalarValueType="YES"/>
+        <attribute name="editedStatusID" optional="YES" attributeType="String"/>
         <attribute name="id" attributeType="UUID" usesScalarValueType="NO"/>
         <attribute name="initialText" attributeType="String"/>
         <attribute name="inReplyToID" optional="YES" attributeType="String"/>
@@ -19,6 +20,9 @@
         <attribute name="assetID" optional="YES" attributeType="String"/>
         <attribute name="attachmentDescription" attributeType="String" defaultValueString=""/>
         <attribute name="drawingData" optional="YES" attributeType="Binary"/>
+        <attribute name="editedAttachmentID" optional="YES" attributeType="String"/>
+        <attribute name="editedAttachmentKindString" optional="YES" attributeType="String"/>
+        <attribute name="editedAttachmentURL" optional="YES" attributeType="URI"/>
         <attribute name="fileType" optional="YES" attributeType="String"/>
         <attribute name="fileURL" optional="YES" attributeType="URI"/>
         <attribute name="id" attributeType="UUID" usesScalarValueType="NO"/>

Packages/ComposeUI/Sources/ComposeUI/CoreData/DraftsPersistentContainer.swift

@@ -96,6 +96,67 @@ public class DraftsPersistentContainer: NSPersistentContainer {
         return draft
     }
     
+    public func createEditDraft(
+        accountID: String,
+        source: StatusSource,
+        inReplyToID: String?,
+        visibility: Visibility,
+        localOnly: Bool,
+        attachments: [Attachment],
+        poll: Pachyderm.Poll?
+    ) -> Draft {
+        let draft = Draft(context: viewContext)
+        draft.accountID = accountID
+        draft.editedStatusID = source.id
+        draft.text = source.text
+        draft.initialText = source.text
+        draft.contentWarning = source.spoilerText
+        draft.contentWarningEnabled = !source.spoilerText.isEmpty
+        draft.inReplyToID = inReplyToID
+        draft.visibility = visibility
+        draft.localOnly = localOnly
+        for attachment in attachments {
+            createEditDraftAttachment(attachment, in: draft)
+        }
+        if let existingPoll = poll {
+            let poll = Poll(context: viewContext)
+            poll.draft = draft
+            draft.poll = poll
+            if let expiresAt = existingPoll.expiresAt,
+               !existingPoll.effectiveExpired {
+                poll.duration = PollController.Duration.allCases.max(by: {
+                    (expiresAt.timeIntervalSinceNow - $0.timeInterval) < (expiresAt.timeIntervalSinceNow - $1.timeInterval)
+                })!.timeInterval
+            } else {
+                poll.duration = PollController.Duration.oneDay.timeInterval
+            }
+            poll.multiple = existingPoll.multiple
+            // rmeove default empty options
+            for opt in poll.pollOptions {
+                viewContext.delete(opt)
+            }
+            for existingOpt in existingPoll.options {
+                let opt = PollOption(context: viewContext)
+                opt.poll = poll
+                poll.options.add(opt)
+                opt.text = existingOpt.title
+            }
+        }
+        save()
+        return draft
+    }
+    
+    private func createEditDraftAttachment(_ attachment: Attachment, in draft: Draft) {
+        let draftAttachment = DraftAttachment(context: viewContext)
+        draftAttachment.id = UUID()
+        draftAttachment.attachmentDescription = attachment.description ?? ""
+        draftAttachment.editedAttachmentID = attachment.id
+        draftAttachment.editedAttachmentKind = attachment.kind
+        draftAttachment.editedAttachmentURL = attachment.url
+        draftAttachment.draft = draft
+        draft.attachments.add(draftAttachment)
+    }
+    
     @objc private func remoteChanges(_ notification: Foundation.Notification) {
         guard let newHistoryToken = notification.userInfo?[NSPersistentHistoryTokenKey] as? NSPersistentHistoryToken else {
             return

Packages/InstanceFeatures/Sources/InstanceFeatures/InstanceFeatures.swift

@@ -115,6 +115,15 @@ public class InstanceFeatures: ObservableObject {
         instanceType.isMastodon || instanceType.isPleroma(.akkoma(nil))
     }
     
+    public var editStatuses: Bool {
+        // todo: does this require a particular akkoma version?
+        hasMastodonVersion(3, 5, 0) || instanceType.isPleroma(.akkoma(nil))
+    }
+    
+    public var needsEditAttachmentsInSeparateRequest: Bool {
+        instanceType.isPleroma(.akkoma(nil))
+    }
+    
     public init() {
     }
     

Packages/Pachyderm/Sources/Pachyderm/Client.swift

@@ -315,6 +315,13 @@ public class Client {
             ], attachment))
     }
     
+    public static func updateAttachment(id: String, description: String?, focus: (Float, Float)?) -> Request<Attachment> {
+        return Request(method: .put, path: "/api/v1/media/\(id)", body: FormDataBody([
+            "description" => description,
+            "focus" => focus
+        ], nil))
+    }
+    
     // MARK: - Mutes
     public static func getMutes(range: RequestRange) -> Request<[Account]> {
         var request = Request<[Account]>(method: .get, path: "/api/v1/mutes")
@@ -382,7 +389,7 @@ public class Client {
     public static func createStatus(text: String,
                                     contentType: StatusContentType = .plain,
                                     inReplyTo: String? = nil,
-                                    media: [Attachment]? = nil,
+                                    mediaIDs: [String]? = nil,
                                     sensitive: Bool? = nil,
                                     spoilerText: String? = nil,
                                     visibility: Visibility? = nil,
@@ -402,7 +409,32 @@ public class Client {
                 "poll[expires_in]" => pollExpiresIn,
                 "poll[multiple]" => pollMultiple,
                 "local_only" => localOnly,
-            ] + "media_ids" => media?.map { $0.id } + "poll[options]" => pollOptions))
+            ] + "media_ids" => mediaIDs + "poll[options]" => pollOptions))
+    }
+    
+    public static func editStatus(
+        id: String,
+        text: String,
+        contentType: StatusContentType = .plain,
+        spoilerText: String?,
+        sensitive: Bool,
+        language: String?,
+        mediaIDs: [String],
+        mediaAttributes: [EditStatusMediaAttributes],
+        poll: EditPollParameters?
+    ) -> Request<Status> {
+        let params = EditStatusParameters(
+            id: id,
+            text: text,
+            contentType: contentType,
+            spoilerText: spoilerText,
+            sensitive: sensitive,
+            language: language,
+            mediaIDs: mediaIDs,
+            mediaAttributes: mediaAttributes,
+            poll: poll
+        )
+        return Request(method: .put, path: "/api/v1/statuses/\(id)", body: JsonBody(params))
     }
     
     // MARK: - Timelines

Packages/Pachyderm/Sources/Pachyderm/Model/EditStatusParameters.swift

@@ -0,0 +1,97 @@
+//
+//  EditStatusParameters.swift
+//  Pachyderm
+//
+//  Created by Shadowfacts on 5/10/23.
+//
+
+import Foundation
+
+struct EditStatusParameters: Encodable, Sendable {
+    let id: String
+    let text: String
+    let contentType: StatusContentType
+    let spoilerText: String?
+    let sensitive: Bool
+    let language: String?
+    let mediaIDs: [String]
+    let mediaAttributes: [EditStatusMediaAttributes]
+    let poll: EditPollParameters?
+    
+    func encode(to encoder: Encoder) throws {
+        var container = encoder.container(keyedBy: CodingKeys.self)
+        try container.encode(self.id, forKey: .id)
+        try container.encode(self.text, forKey: .text)
+        try container.encode(self.contentType, forKey: .contentType)
+        try container.encodeIfPresent(self.spoilerText, forKey: .spoilerText)
+        try container.encode(self.sensitive, forKey: .sensitive)
+        try container.encodeIfPresent(self.language, forKey: .language)
+        try container.encode(self.mediaIDs, forKey: .mediaIDs)
+        try container.encode(self.mediaAttributes, forKey: .mediaAttributes)
+        try container.encodeIfPresent(self.poll, forKey: .poll)
+    }
+    
+    enum CodingKeys: String, CodingKey {
+        case id
+        case text = "status"
+        case contentType = "content_type"
+        case spoilerText = "spoiler_text"
+        case sensitive
+        case language
+        case mediaIDs = "media_ids"
+        case mediaAttributes = "media_attributes"
+        case poll
+    }
+}
+
+public struct EditPollParameters: Encodable, Sendable {
+    let options: [String]
+    let expiresIn: Int
+    let multiple: Bool
+    
+    public init(options: [String], expiresIn: Int, multiple: Bool) {
+        self.options = options
+        self.expiresIn = expiresIn
+        self.multiple = multiple
+    }
+    
+    public func encode(to encoder: Encoder) throws {
+        var container = encoder.container(keyedBy: CodingKeys.self)
+        try container.encode(self.options, forKey: .options)
+        try container.encode(self.expiresIn, forKey: .expiresIn)
+        try container.encode(self.multiple, forKey: .multiple)
+    }
+    
+    enum CodingKeys: String, CodingKey {
+        case options
+        case expiresIn = "expires_in"
+        case multiple
+    }
+}
+
+public struct EditStatusMediaAttributes: Encodable, Sendable {
+    let id: String
+    let description: String
+    let focus: (Float, Float)?
+    
+    public init(id: String, description: String, focus: (Float, Float)?) {
+        self.id = id
+        self.description = description
+        self.focus = focus
+    }
+    
+    public func encode(to encoder: Encoder) throws {
+        var container = encoder.container(keyedBy: CodingKeys.self)
+        try container.encode(id, forKey: .id)
+        try container.encode(description, forKey: .description)
+        if let focus {
+            try container.encode("\(focus.0),\(focus.1)", forKey: .focus)
+        }
+    }
+    
+    enum CodingKeys: String, CodingKey {
+        case id
+        case description
+        case focus
+    }
+}

Packages/Pachyderm/Sources/Pachyderm/Model/Mention.swift

@@ -24,6 +24,13 @@ public struct Mention: Codable, Sendable {
         self.url = try container.decode(WebURL.self, forKey: .url)
     }
     
+    public init(url: WebURL, username: String, acct: String, id: String) {
+        self.url = url
+        self.username = username
+        self.acct = acct
+        self.id = id
+    }
+    
     private enum CodingKeys: String, CodingKey {
         case url
         case username

Packages/Pachyderm/Sources/Pachyderm/Model/Status.swift

@@ -41,6 +41,7 @@ public final class Status: StatusProtocol, Decodable, Sendable {
     public let poll: Poll?
     // Hometown, Glitch only
     public let localOnly: Bool?
+    public let editedAt: Date?
     
     public var applicationName: String? { application?.name }
     
@@ -92,6 +93,7 @@ public final class Status: StatusProtocol, Decodable, Sendable {
         self.bookmarked = try container.decodeIfPresent(Bool.self, forKey: .bookmarked)
         self.card = try container.decodeIfPresent(Card.self, forKey: .card)
         self.poll = try container.decodeIfPresent(Poll.self, forKey: .poll)
+        self.editedAt = try container.decodeIfPresent(Date.self, forKey: .editedAt)
     }
     
     public static func getContext(_ statusID: String) -> Request<ConversationContext> {
@@ -163,6 +165,14 @@ public final class Status: StatusProtocol, Decodable, Sendable {
         return Request<Status>(method: .post, path: "/api/v1/statuses/\(statusID)/unmute")
     }
     
+    public static func source(_ statusID: String) -> Request<StatusSource> {
+        return Request(method: .get, path: "/api/v1/statuses/\(statusID)/source")
+    }
+    
+    public static func history(_ statusID: String) -> Request<[StatusEdit]> {
+        return Request(method: .get, path: "/api/v1/statuses/\(statusID)/history")
+    }
+    
     private enum CodingKeys: String, CodingKey {
         case id
         case uri
@@ -193,6 +203,7 @@ public final class Status: StatusProtocol, Decodable, Sendable {
         case card
         case poll
         case localOnly = "local_only"
+        case editedAt = "edited_at"
     }
 }
 

Packages/Pachyderm/Sources/Pachyderm/Model/StatusEdit.swift

@@ -0,0 +1,38 @@
+//
+//  StatusEdit.swift
+//  Pachyderm
+//
+//  Created by Shadowfacts on 5/11/23.
+//
+
+import Foundation
+
+public struct StatusEdit: Decodable {
+    public let content: String
+    public let spoilerText: String
+    public let sensitive: Bool
+    public let createdAt: Date
+    public let account: Account
+    public let poll: Poll?
+    public let attachments: [Attachment]
+    public let emojis: [Emoji]
+    
+    enum CodingKeys: String, CodingKey {
+        case content
+        case spoilerText = "spoiler_text"
+        case sensitive
+        case createdAt = "created_at"
+        case account = "account"
+        case poll
+        case attachments = "media_attachments"
+        case emojis
+    }
+    
+    public struct Poll: Decodable {
+        public let options: [Option]
+        
+        public struct Option: Decodable {
+            public let title: String
+        }
+    }
+}

Packages/Pachyderm/Sources/Pachyderm/Model/StatusSource.swift

@@ -0,0 +1,20 @@
+//
+//  StatusSource.swift
+//  Pachyderm
+//
+//  Created by Shadowfacts on 5/10/23.
+//
+
+import Foundation
+
+public struct StatusSource: Decodable {
+    public let id: String
+    public let text: String
+    public let spoilerText: String
+    
+    enum CodingKeys: String, CodingKey {
+        case id
+        case text
+        case spoilerText = "spoiler_text"
+    }
+}

Packages/Pachyderm/Sources/Pachyderm/Utilities/CollapseState.swift

@@ -12,6 +12,7 @@ import Foundation
 public final class CollapseState: Sendable {
     public var collapsible: Bool?
     public var collapsed: Bool?
+    public var statusPropertiesHash: Int?
 
     public var unknown: Bool {
         collapsible == nil || collapsed == nil

ShareExtension/ShareHostingController.swift

@@ -36,6 +36,7 @@ class ShareHostingController: UIHostingController<ShareHostingController.View> {
             config: ComposeUIConfig(),
             mastodonController: mastodonContext,
             fetchAvatar: Self.fetchAvatar,
+            fetchAttachment: { _ in fatalError("edits aren't allowed in share sheet, can't fetch existing attachment") },
             fetchStatus: { _ in fatalError("replies aren't allowed in share sheet") },
             displayNameLabel: { account, style, _ in AnyView(Text(account.displayName).font(.system(style))) },
             currentAccountContainerView: { AnyView(SwitchAccountContainerView(content: $0, mastodonContextPublisher: mastodonContextPublisher)) },

ShareExtension/ShareMastodonContext.swift

@@ -89,4 +89,7 @@ class ShareMastodonContext: ComposeMastodonContext, ObservableObject {
     func searchCachedHashtags(query: String) -> [Hashtag] {
         return []
     }
+    
+    func storeCreatedStatus(_ status: Status) {
+    }
 }

Tusker.xcodeproj/project.pbxproj

@@ -296,6 +296,11 @@
 		D6D4DDF0212518A200E1C4BB /* TuskerUITests.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D4DDEF212518A200E1C4BB /* TuskerUITests.swift */; };
 		D6D706A029466649000827ED /* ScrollingSegmentedControl.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D7069F29466649000827ED /* ScrollingSegmentedControl.swift */; };
 		D6D706A72948D4D0000827ED /* TimlineState.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D706A62948D4D0000827ED /* TimlineState.swift */; };
+		D6D79F262A0C8D2700AB2315 /* FetchStatusSourceService.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D79F252A0C8D2700AB2315 /* FetchStatusSourceService.swift */; };
+		D6D79F292A0D596B00AB2315 /* StatusEditHistoryViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D79F282A0D596B00AB2315 /* StatusEditHistoryViewController.swift */; };
+		D6D79F2B2A0D5D5C00AB2315 /* StatusEditCollectionViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D79F2A2A0D5D5C00AB2315 /* StatusEditCollectionViewCell.swift */; };
+		D6D79F2D2A0D61B400AB2315 /* StatusEditContentTextView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D79F2C2A0D61B400AB2315 /* StatusEditContentTextView.swift */; };
+		D6D79F2F2A0D6A7F00AB2315 /* StatusEditPollView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D79F2E2A0D6A7F00AB2315 /* StatusEditPollView.swift */; };
 		D6D94955298963A900C59229 /* Colors.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D94954298963A900C59229 /* Colors.swift */; };
 		D6D9498D298CBB4000C59229 /* TrendingStatusCollectionViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D9498C298CBB4000C59229 /* TrendingStatusCollectionViewCell.swift */; };
 		D6D9498F298EB79400C59229 /* CopyableLable.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D9498E298EB79400C59229 /* CopyableLable.swift */; };
@@ -690,6 +695,11 @@
 		D6D7069F29466649000827ED /* ScrollingSegmentedControl.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ScrollingSegmentedControl.swift; sourceTree = "<group>"; };
 		D6D706A62948D4D0000827ED /* TimlineState.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimlineState.swift; sourceTree = "<group>"; };
 		D6D706A829498C82000827ED /* Tusker.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Tusker.xcconfig; sourceTree = "<group>"; };
+		D6D79F252A0C8D2700AB2315 /* FetchStatusSourceService.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FetchStatusSourceService.swift; sourceTree = "<group>"; };
+		D6D79F282A0D596B00AB2315 /* StatusEditHistoryViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StatusEditHistoryViewController.swift; sourceTree = "<group>"; };
+		D6D79F2A2A0D5D5C00AB2315 /* StatusEditCollectionViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StatusEditCollectionViewCell.swift; sourceTree = "<group>"; };
+		D6D79F2C2A0D61B400AB2315 /* StatusEditContentTextView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StatusEditContentTextView.swift; sourceTree = "<group>"; };
+		D6D79F2E2A0D6A7F00AB2315 /* StatusEditPollView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StatusEditPollView.swift; sourceTree = "<group>"; };
 		D6D94954298963A900C59229 /* Colors.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Colors.swift; sourceTree = "<group>"; };
 		D6D9498C298CBB4000C59229 /* TrendingStatusCollectionViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TrendingStatusCollectionViewCell.swift; sourceTree = "<group>"; };
 		D6D9498E298EB79400C59229 /* CopyableLable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CopyableLable.swift; sourceTree = "<group>"; };
@@ -977,6 +987,7 @@
 				D65B4B522971F6E300DABDFB /* Report */,
 				D6BC9DD8232D8BCA002CA326 /* Search */,
 				D6A3BC8C2321FF9B00FD64D5 /* Status Action Account List */,
+				D6D79F272A0D595D00AB2315 /* Status Edit History */,
 				D641C781213DD7DD004B4513 /* Timeline */,
 				D6C693FA2162FE5D007D6A6D /* Utilities */,
 			);
@@ -1530,6 +1541,17 @@
 			path = Gestures;
 			sourceTree = "<group>";
 		};
+		D6D79F272A0D595D00AB2315 /* Status Edit History */ = {
+			isa = PBXGroup;
+			children = (
+				D6D79F282A0D596B00AB2315 /* StatusEditHistoryViewController.swift */,
+				D6D79F2A2A0D5D5C00AB2315 /* StatusEditCollectionViewCell.swift */,
+				D6D79F2C2A0D61B400AB2315 /* StatusEditContentTextView.swift */,
+				D6D79F2E2A0D6A7F00AB2315 /* StatusEditPollView.swift */,
+			);
+			path = "Status Edit History";
+			sourceTree = "<group>";
+		};
 		D6DEA0DB268400AF00FE896A /* Confirm Load More Cell */ = {
 			isa = PBXGroup;
 			children = (
@@ -1596,6 +1618,7 @@
 				D65B4B6129771A3F00DABDFB /* FetchStatusService.swift */,
 				D65B4B6529773AE600DABDFB /* DeleteStatusService.swift */,
 				D6DD8FFC298495A8002AD3FD /* LogoutService.swift */,
+				D6D79F252A0C8D2700AB2315 /* FetchStatusSourceService.swift */,
 			);
 			path = API;
 			sourceTree = "<group>";
@@ -1949,6 +1972,7 @@
 				D62D2426217ABF63005076CC /* UserActivityType.swift in Sources */,
 				D6AC956723C4347E008C9946 /* MainSceneDelegate.swift in Sources */,
 				D6311C5025B3765B00B27539 /* ImageDataCache.swift in Sources */,
+				D6D79F2B2A0D5D5C00AB2315 /* StatusEditCollectionViewCell.swift in Sources */,
 				D6BC9DD7232D7811002CA326 /* TimelinesPageViewController.swift in Sources */,
 				D6D9498D298CBB4000C59229 /* TrendingStatusCollectionViewCell.swift in Sources */,
 				D60E2F2E244248BF005F8713 /* MastodonCachePersistentStore.swift in Sources */,
@@ -2025,6 +2049,7 @@
 				D623A53D2635F5590095BD04 /* StatusPollView.swift in Sources */,
 				D64AAE9726C88DC400FC57FB /* ToastConfiguration.swift in Sources */,
 				D63661C02381C144004B9E16 /* PreferencesNavigationController.swift in Sources */,
+				D6D79F2F2A0D6A7F00AB2315 /* StatusEditPollView.swift in Sources */,
 				D65B4B5E2973040D00DABDFB /* ReportAddStatusView.swift in Sources */,
 				D6EE63FB2551F7F60065485C /* StatusCollapseButton.swift in Sources */,
 				D6CA8CDE296387310050C433 /* SaveToPhotosActivity.swift in Sources */,
@@ -2040,6 +2065,7 @@
 				D6EBF01523C55C0900AE061B /* UIApplication+Scenes.swift in Sources */,
 				D6538945214D6D7500E3CEFC /* TableViewSwipeActionProvider.swift in Sources */,
 				D6F0B17524A3A1AA001E48C3 /* MainSidebarViewController.swift in Sources */,
+				D6D79F262A0C8D2700AB2315 /* FetchStatusSourceService.swift in Sources */,
 				D62E9985279CA23900C26176 /* URLSession+Development.swift in Sources */,
 				D61F75B7293C119700C0B37F /* Filterer.swift in Sources */,
 				D64AAE9526C88C5000FC57FB /* ToastableViewController.swift in Sources */,
@@ -2118,6 +2144,7 @@
 				D67C57AF21E28EAD00C3118B /* Array+Uniques.swift in Sources */,
 				D68A76F129539116001DA1B3 /* FlipView.swift in Sources */,
 				D6945C3223AC4D36005C403C /* HashtagTimelineViewController.swift in Sources */,
+				D6D79F2D2A0D61B400AB2315 /* StatusEditContentTextView.swift in Sources */,
 				D647D92824257BEB0005044F /* AttachmentPreviewViewController.swift in Sources */,
 				D61F75B5293BD97400C0B37F /* DeleteFilterService.swift in Sources */,
 				D6DFC6A0242C4CCC00ACC392 /* Weak.swift in Sources */,
@@ -2156,6 +2183,7 @@
 				D6E77D09286D25FA00D8B732 /* TrendingHashtagCollectionViewCell.swift in Sources */,
 				D667E5F12134D5050057A976 /* UIViewController+Delegates.swift in Sources */,
 				D6BC8748219738E1006163F1 /* EnhancedTableViewController.swift in Sources */,
+				D6D79F292A0D596B00AB2315 /* StatusEditHistoryViewController.swift in Sources */,
 				D6E426B325337C7000C02E1C /* CustomEmojiImageView.swift in Sources */,
 				D6D4DDD0212518A000E1C4BB /* AppDelegate.swift in Sources */,
 				D61F75B3293BD89C00C0B37F /* UpdateFilterService.swift in Sources */,

Tusker/API/FetchStatusSourceService.swift

@@ -0,0 +1,26 @@
+//
+//  FetchStatusSourceService.swift
+//  Tusker
+//
+//  Created by Shadowfacts on 5/10/23.
+//  Copyright © 2023 Shadowfacts. All rights reserved.
+//
+
+import Foundation
+import Pachyderm
+
+@MainActor
+class FetchStatusSourceService {
+    let statusID: String
+    let delegate: TuskerNavigationDelegate
+    
+    init(statusID: String, delegate: TuskerNavigationDelegate) {
+        self.statusID = statusID
+        self.delegate = delegate
+    }
+    
+    func run() async throws -> StatusSource {
+        // todo: show loading indicator if this takes longer than a certain time
+        return try await delegate.apiController.run(Status.source(statusID)).0
+    }
+}

Tusker/API/MastodonController.swift

@@ -506,6 +506,20 @@ class MastodonController: ObservableObject {
         )
     }
     
+    func createDraft(editing status: StatusMO, source: StatusSource) -> Draft {
+        precondition(status.id == source.id)
+        let draft = DraftsPersistentContainer.shared.createEditDraft(
+            accountID: accountInfo!.id,
+            source: source,
+            inReplyToID: status.inReplyToID,
+            visibility: status.visibility,
+            localOnly: status.localOnly,
+            attachments: status.attachments,
+            poll: status.poll
+        )
+        return draft
+    }
+    
 }
 
 private func setInstanceBreadcrumb(instance: Instance, nodeInfo: NodeInfo?) {

Tusker/CoreData/AccountMO.swift

@@ -18,6 +18,12 @@ public final class AccountMO: NSManagedObject, AccountProtocol {
         return NSFetchRequest<AccountMO>(entityName: "Account")
     }
     
+    @nonobjc public class func fetchRequest(url: URL) -> NSFetchRequest<AccountMO> {
+        let req = NSFetchRequest<AccountMO>(entityName: "Account")
+        req.predicate = NSPredicate(format: "url = %@", url as NSURL)
+        return req
+    }
+    
     @NSManaged public var acct: String
     @NSManaged public var avatar: URL?
     @NSManaged public var botCD: Bool

Tusker/CoreData/StatusMO.swift

@@ -31,6 +31,7 @@ public final class StatusMO: NSManagedObject, StatusProtocol {
     @NSManaged public var cardData: Data?
     @NSManaged public var content: String
     @NSManaged public var createdAt: Date
+    @NSManaged public var editedAt: Date?
     @NSManaged private var emojisData: Data?
     @NSManaged public var favourited: Bool
     @NSManaged public var favouritesCount: Int
@@ -113,6 +114,7 @@ extension StatusMO {
         self.card = status.card
         self.content = status.content
         self.createdAt = status.createdAt
+        self.editedAt = status.editedAt
         self.emojis = status.emojis
         self.favourited = status.favourited ?? false
         self.favouritesCount = status.favouritesCount

Tusker/CoreData/Tusker.xcdatamodeld/Tusker.xcdatamodel/contents

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="21513" systemVersion="22C65" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
+<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="21754" systemVersion="22D49" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
     <entity name="Account" representedClassName="AccountMO" syncable="YES">
         <attribute name="acct" attributeType="String"/>
         <attribute name="avatar" optional="YES" attributeType="URI"/>
@@ -89,6 +89,7 @@
         <attribute name="cardData" optional="YES" attributeType="Binary"/>
         <attribute name="content" attributeType="String"/>
         <attribute name="createdAt" attributeType="Date" usesScalarValueType="NO"/>
+        <attribute name="editedAt" optional="YES" attributeType="Date" usesScalarValueType="NO"/>
         <attribute name="emojisData" attributeType="Binary" customClassName="[Data]"/>
         <attribute name="favourited" attributeType="Boolean" usesScalarValueType="YES"/>
         <attribute name="favouritesCount" attributeType="Integer 64" defaultValueString="0" usesScalarValueType="YES"/>
@@ -97,7 +98,7 @@
         <attribute name="inReplyToAccountID" optional="YES" attributeType="String"/>
         <attribute name="inReplyToID" optional="YES" attributeType="String"/>
         <attribute name="lastFetchedAt" optional="YES" attributeType="Date" usesScalarValueType="NO"/>
-        <attribute name="localOnly" optional="YES" attributeType="Boolean" usesScalarValueType="YES"/>
+        <attribute name="localOnly" attributeType="Boolean" defaultValueString="NO" usesScalarValueType="YES"/>
         <attribute name="mentionsData" attributeType="Binary"/>
         <attribute name="muted" optional="YES" attributeType="Boolean" usesScalarValueType="YES"/>
         <attribute name="pinnedInternal" optional="YES" attributeType="Boolean" usesScalarValueType="YES"/>

Tusker/Extensions/StatusStateResolver.swift

@@ -9,12 +9,24 @@
 import Foundation
 import Pachyderm
 
+protocol CollapseStateResolving {
+    var spoilerText: String { get }
+}
+
+extension StatusMO: CollapseStateResolving {}
+extension StatusEdit: CollapseStateResolving {}
+
 extension CollapseState {
     
-    func resolveFor(status: StatusMO, height: CGFloat, textLength: Int? = nil) {
+    func resolveFor(status: CollapseStateResolving, height: () -> CGFloat, textLength: Int? = nil) -> Bool {
+        lazy var newHash = hashStatusProperties(status: status)
+        guard unknown || statusPropertiesHash != newHash else {
+            return false
+        }
+ 
         let longEnoughToCollapse: Bool
         if Preferences.shared.collapseLongPosts,
-           height > 600 || (textLength != nil && textLength! > 500) {
+           height() > 600 || (textLength != nil && textLength! > 500) {
             longEnoughToCollapse = true
         } else {
             longEnoughToCollapse = false
@@ -39,6 +51,12 @@ extension CollapseState {
         self.collapsible = contentWarningCollapsible || longEnoughToCollapse
         // use ?? instead of || because the content warnig pref takes priority over length
         self.collapsed = collapseDueToContentWarning ?? longEnoughToCollapse
+        self.statusPropertiesHash = newHash
+        return true
     }
     
 }
+
+private func hashStatusProperties(status: CollapseStateResolving) -> Int {
+    status.spoilerText.hashValue
+}

Tusker/Screens/Compose/ComposeHostingController.swift

@@ -39,6 +39,7 @@ class ComposeHostingController: UIHostingController<ComposeHostingController.Vie
             config: ComposeUIConfig(),
             mastodonController: mastodonController,
             fetchAvatar: { @MainActor in await ImageCache.avatars.get($0).1 },
+            fetchAttachment: { @MainActor in await ImageCache.attachments.get($0).1 },
             fetchStatus: { mastodonController.persistentContainer.status(for: $0) },
             displayNameLabel: { AnyView(AccountDisplayNameLabel(account: $0, textStyle: $1, emojiSize: $2)) },
             replyContentView: { AnyView(ComposeReplyContentView(status: $0, mastodonController: mastodonController, heightChanged: $1)) },
@@ -210,6 +211,10 @@ extension MastodonController: ComposeMastodonContext {
         }
         return results
     }
+    
+    func storeCreatedStatus(_ status: Status) {
+        persistentContainer.addOrUpdate(status: status)
+    }
 }
 
 extension ComposeHostingController: PHPickerViewControllerDelegate {

Tusker/Screens/Status Edit History/StatusEditCollectionViewCell.swift

@@ -0,0 +1,165 @@
+//
+//  StatusEditCollectionViewCell.swift
+//  Tusker
+//
+//  Created by Shadowfacts on 5/11/23.
+//  Copyright © 2023 Shadowfacts. All rights reserved.
+//
+
+import UIKit
+import Pachyderm
+
+@MainActor
+protocol StatusEditCollectionViewCellDelegate: AnyObject, TuskerNavigationDelegate {
+    func statusEditCellNeedsReconfigure(_ cell: StatusEditCollectionViewCell, animated: Bool, completion: (() -> Void)?)
+}
+
+class StatusEditCollectionViewCell: UICollectionViewListCell {
+    
+    private lazy var contentVStack = UIStackView(arrangedSubviews: [
+        timestampLabel,
+        contentWarningLabel,
+        collapseButton,
+        contentContainer,
+    ]).configure {
+        $0.axis = .vertical
+        $0.spacing = 4
+        $0.alignment = .fill
+    }
+    
+    private lazy var timestampLabel = UILabel().configure {
+        $0.textColor = .secondaryLabel
+        $0.font = UIFont(descriptor: .preferredFontDescriptor(withTextStyle: .body).addingAttributes([
+            .traits: [
+                UIFontDescriptor.TraitKey.weight: UIFont.Weight.light.rawValue,
+            ]
+        ]), size: 0)
+        $0.adjustsFontForContentSizeCategory = true
+    }
+    
+    private lazy var contentWarningLabel = EmojiLabel().configure {
+        $0.numberOfLines = 0
+        $0.textColor = .secondaryLabel
+        $0.font = UIFont(descriptor: .preferredFontDescriptor(withTextStyle: .body).addingAttributes([
+            .traits: [
+                UIFontDescriptor.TraitKey.weight: UIFont.Weight.bold.rawValue
+            ]
+        ]), size: 0)
+        $0.adjustsFontForContentSizeCategory = true
+        $0.setContentHuggingPriority(.defaultHigh, for: .vertical)
+        $0.isUserInteractionEnabled = true
+        $0.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(collapseButtonPressed)))
+    }
+    
+    private lazy var collapseButton = StatusCollapseButton(configuration: {
+        var config = UIButton.Configuration.filled()
+        config.image = UIImage(systemName: "chevron.down")
+        return config
+    }()).configure {
+        $0.tintAdjustmentMode = .normal
+        $0.setContentHuggingPriority(.defaultHigh, for: .vertical)
+        $0.addTarget(self, action: #selector(collapseButtonPressed), for: .touchUpInside)
+    }
+    
+    private let contentContainer = StatusContentContainer<StatusEditContentTextView, StatusEditPollView>(useTopSpacer: false).configure {
+        $0.contentTextView.defaultFont = TimelineStatusCollectionViewCell.contentFont
+        $0.contentTextView.monospaceFont = TimelineStatusCollectionViewCell.monospaceFont
+        $0.contentTextView.paragraphStyle = TimelineStatusCollectionViewCell.contentParagraphStyle
+        $0.setContentHuggingPriority(.defaultLow, for: .vertical)
+    }
+    
+    weak var delegate: StatusEditCollectionViewCellDelegate?
+    private var mastodonController: MastodonController! { delegate?.apiController }
+    
+    private var edit: StatusEdit!
+    private var statusState: CollapseState!
+    
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        
+        contentVStack.translatesAutoresizingMaskIntoConstraints = false
+        contentView.addSubview(contentVStack)
+        NSLayoutConstraint.activate([
+            contentVStack.topAnchor.constraint(equalTo: contentView.topAnchor, constant: 8),
+            contentVStack.bottomAnchor.constraint(equalTo: contentView.bottomAnchor, constant: -6),
+            contentVStack.leadingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: 16),
+            contentVStack.trailingAnchor.constraint(equalTo: contentView.trailingAnchor, constant: -16),
+        ])
+    }
+    
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    // todo: accessibility
+    
+    
+    // MARK: Configure UI
+    
+    func updateUI(edit: StatusEdit, state: CollapseState, index: Int) {
+        self.edit = edit
+        self.statusState = state
+        
+        timestampLabel.text = ConversationMainStatusCollectionViewCell.dateFormatter.string(from: edit.createdAt)
+        
+        contentContainer.contentTextView.setTextFrom(edit: edit, index: index)
+        contentContainer.contentTextView.navigationDelegate = delegate
+        contentContainer.attachmentsView.delegate = self
+        contentContainer.attachmentsView.updateUI(attachments: edit.attachments)
+        contentContainer.pollView.isHidden = edit.poll == nil
+        contentContainer.pollView.updateUI(poll: edit.poll, emojis: edit.emojis)
+        contentContainer.cardView.isHidden = true
+        
+        contentWarningLabel.text = edit.spoilerText
+        contentWarningLabel.isHidden = edit.spoilerText.isEmpty
+        if !contentWarningLabel.isHidden {
+            contentWarningLabel.setEmojis(edit.emojis, identifier: index)
+        }
+        
+        _ = state.resolveFor(status: edit, height: {
+            layoutIfNeeded()
+            return contentContainer.visibleSubviewHeight
+        })
+        collapseButton.isHidden = !state.collapsible!
+        contentContainer.setCollapsed(state.collapsed!)
+        if state.collapsed! {
+            contentContainer.alpha = 0
+            // TODO: is this accessing the image view before the button's been laid out?
+            collapseButton.imageView!.transform = CGAffineTransform(rotationAngle: 0)
+            collapseButton.accessibilityLabel = NSLocalizedString("Expand Status", comment: "expand status button accessibility label")
+        } else {
+            contentContainer.alpha = 1
+            collapseButton.imageView!.transform = CGAffineTransform(rotationAngle: .pi)
+            collapseButton.accessibilityLabel = NSLocalizedString("Collapse Status", comment: "collapse status button accessibility label")
+        }
+    }
+    
+    // MARK: Interaction
+    
+    @objc private func collapseButtonPressed() {
+        statusState.collapsed!.toggle()
+        contentContainer.layer.masksToBounds = true
+        delegate?.statusEditCellNeedsReconfigure(self, animated: true) {
+            self.contentContainer.layer.masksToBounds = false
+        }
+    }
+    
+}
+
+extension StatusEditCollectionViewCell: AttachmentViewDelegate {
+    func attachmentViewGallery(startingAt index: Int) -> GalleryViewController? {
+        guard let delegate else {
+            return nil
+        }
+        let attachments = contentContainer.attachmentsView.attachments!
+        let sourceViews = attachments.map {
+            contentContainer.attachmentsView.getAttachmentView(for: $0)
+        }
+        let gallery = delegate.gallery(attachments: attachments, sourceViews: sourceViews, startIndex: index)
+        return gallery
+    }
+    
+    func attachmentViewPresent(_ vc: UIViewController, animated: Bool) {
+        delegate?.present(vc, animated: animated)
+    }
+}

Tusker/Screens/Status Edit History/StatusEditContentTextView.swift

@@ -0,0 +1,22 @@
+//
+//  StatusEditContentTextView.swift
+//  Tusker
+//
+//  Created by Shadowfacts on 5/11/23.
+//  Copyright © 2023 Shadowfacts. All rights reserved.
+//
+
+import UIKit
+import Pachyderm
+import WebURL
+
+class StatusEditContentTextView: ContentTextView {
+    
+    func setTextFrom(edit: StatusEdit, index: Int) {
+        setTextFromHtml(edit.content)
+        setEmojis(edit.emojis, identifier: index)
+    }
+    
+    // mention links aren't included in the edit content, nothing else to do
+
+}

Tusker/Screens/Status Edit History/StatusEditHistoryViewController.swift

@@ -0,0 +1,208 @@
+//
+//  StatusEditHistoryViewController.swift
+//  Tusker
+//
+//  Created by Shadowfacts on 5/11/23.
+//  Copyright © 2023 Shadowfacts. All rights reserved.
+//
+
+import UIKit
+import Pachyderm
+
+class StatusEditHistoryViewController: UIViewController, CollectionViewController {
+    
+    private let statusID: String
+    private let mastodonController: MastodonController
+    
+    private var state = State.unloaded
+    
+    private(set) var collectionView: UICollectionView!
+    private var dataSource: UICollectionViewDiffableDataSource<Section, Item>!
+    
+    init(statusID: String, mastodonController: MastodonController) {
+        self.statusID = statusID
+        self.mastodonController = mastodonController
+        
+        super.init(nibName: nil, bundle: nil)
+        
+        title = "Edit History"
+    }
+    
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        var config = UICollectionLayoutListConfiguration(appearance: .grouped)
+        config.backgroundColor = .appGroupedBackground
+        config.itemSeparatorHandler = { [unowned self] indexPath, sectionConfig in
+            guard let item = self.dataSource.itemIdentifier(for: indexPath) else {
+                return sectionConfig
+            }
+            var config = sectionConfig
+            if item.hideSeparators {
+                config.topSeparatorVisibility = .hidden
+                config.bottomSeparatorVisibility = .hidden
+            }
+            return config
+        }
+        let layout = UICollectionViewCompositionalLayout { sectionIndex, environment in
+            let section = NSCollectionLayoutSection.list(using: config, layoutEnvironment: environment)
+            if UIDevice.current.userInterfaceIdiom == .pad || UIDevice.current.userInterfaceIdiom == .mac {
+                section.contentInsetsReference = .readableContent
+            }
+            return section
+        }
+        collectionView = UICollectionView(frame: .zero, collectionViewLayout: layout)
+        collectionView.delegate = self
+        collectionView.translatesAutoresizingMaskIntoConstraints = false
+        view.addSubview(collectionView)
+        NSLayoutConstraint.activate([
+            collectionView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
+            collectionView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
+            collectionView.topAnchor.constraint(equalTo: view.topAnchor),
+            collectionView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
+        ])
+        
+        dataSource = createDataSource()
+    }
+    
+    private func createDataSource() -> UICollectionViewDiffableDataSource<Section, Item> {
+        let editCell = UICollectionView.CellRegistration<StatusEditCollectionViewCell, (StatusEdit, CollapseState, Int)> { [unowned self] cell, indexPath, itemIdentifier in
+            cell.delegate = self
+            cell.updateUI(edit: itemIdentifier.0, state: itemIdentifier.1, index: itemIdentifier.2)
+        }
+        let loadingCell = UICollectionView.CellRegistration<LoadingCollectionViewCell, Void> { cell, indexPath, itemIdentifier in
+            cell.indicator.startAnimating()
+        }
+        return UICollectionViewDiffableDataSource(collectionView: collectionView) { collectionView, indexPath, itemIdentifier in
+            switch itemIdentifier {
+            case .edit(let edit, let state, index: let index):
+                return collectionView.dequeueConfiguredReusableCell(using: editCell, for: indexPath, item: (edit, state, index))
+            case .loadingIndicator:
+                return collectionView.dequeueConfiguredReusableCell(using: loadingCell, for: indexPath, item: ())
+            }
+        }
+    }
+    
+    override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+        
+        clearSelectionOnAppear(animated: animated)
+        
+        if case .unloaded = state {
+            Task {
+                await load()
+            }
+        }
+    }
+    
+    private func load() async {
+        guard case .unloaded = state else {
+            return
+        }
+        state = .loading
+        
+        var snapshot = NSDiffableDataSourceSnapshot<Section, Item>()
+        snapshot.appendSections([.edits])
+        snapshot.appendItems([.loadingIndicator])
+        await apply(snapshot)
+        
+        let req = Status.history(statusID)
+        do {
+            let (edits, _) = try await mastodonController.run(req)
+            
+            var snapshot = NSDiffableDataSourceSnapshot<Section, Item>()
+            snapshot.appendSections([.edits])
+            // show them in reverse chronological order
+            snapshot.appendItems(edits.reversed().enumerated().map {
+                .edit($1, .unknown, index: $0)
+            })
+            await apply(snapshot)
+            
+            state = .loaded
+            
+        } catch {
+            state = .unloaded
+            let config = ToastConfiguration(from: error, with: "Error Loading Edits", in: self) { [weak self] toast in
+                toast.dismissToast(animated: true)
+                await self?.load()
+            }
+            self.showToast(configuration: config, animated: true)
+        }
+    }
+    
+    private func apply(_ snapshot: NSDiffableDataSourceSnapshot<Section, Item>) async {
+        await MainActor.run {
+            self.dataSource.apply(snapshot)
+        }
+    }
+    
+    enum State {
+        case unloaded
+        case loading
+        case loaded
+    }
+}
+
+extension StatusEditHistoryViewController {
+    enum Section {
+        case edits
+    }
+    enum Item: Hashable, Equatable {
+        case edit(StatusEdit, CollapseState, index: Int)
+        case loadingIndicator
+        
+        static func ==(lhs: Item, rhs: Item) -> Bool {
+            switch (lhs, rhs) {
+            case (.edit(_, _, let a), .edit(_, _, let b)):
+                return a == b
+            case (.loadingIndicator, .loadingIndicator):
+                return true
+            default:
+                return false
+            }
+        }
+        
+        func hash(into hasher: inout Hasher) {
+            switch self {
+            case .edit(_, _, index: let index):
+                hasher.combine(0)
+                hasher.combine(index)
+            case .loadingIndicator:
+                hasher.combine(1)
+            }
+        }
+        
+        var hideSeparators: Bool {
+            switch self {
+            case .loadingIndicator:
+                return true
+            default:
+                return false
+            }
+        }
+    }
+}
+
+extension StatusEditHistoryViewController: UICollectionViewDelegate {
+    func collectionView(_ collectionView: UICollectionView, shouldSelectItemAt indexPath: IndexPath) -> Bool {
+        return false
+    }
+}
+
+extension StatusEditHistoryViewController: TuskerNavigationDelegate {
+    nonisolated var apiController: MastodonController! { mastodonController }
+}
+
+extension StatusEditHistoryViewController: StatusEditCollectionViewCellDelegate {
+    func statusEditCellNeedsReconfigure(_ cell: StatusEditCollectionViewCell, animated: Bool, completion: (() -> Void)?) {
+        if let indexPath = collectionView.indexPath(for: cell) {
+            var snapshot = dataSource.snapshot()
+            snapshot.reconfigureItems([dataSource.itemIdentifier(for: indexPath)!])
+            dataSource.apply(snapshot, animatingDifferences: animated, completion: completion)
+        }
+    }
+}

Tusker/Screens/Status Edit History/StatusEditPollView.swift

@@ -0,0 +1,47 @@
+//
+//  StatusEditPollView.swift
+//  Tusker
+//
+//  Created by Shadowfacts on 5/11/23.
+//  Copyright © 2023 Shadowfacts. All rights reserved.
+//
+
+import UIKit
+import Pachyderm
+
+class StatusEditPollView: UIStackView {
+    
+    init() {
+        super.init(frame: .zero)
+        
+        axis = .vertical
+        alignment = .leading
+        spacing = 4
+    }
+    
+    required init(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    func updateUI(poll: StatusEdit.Poll?, emojis: [Emoji]) {
+        arrangedSubviews.forEach { $0.removeFromSuperview() }
+        
+        for option in poll?.options ?? [] {
+            // the edit poll doesn't actually include the multiple value
+            let icon = PollOptionCheckboxView(multiple: false)
+            icon.readOnly = false // this is a lie, but it's only used for stylistic changes
+            let label = EmojiLabel()
+            label.text = option.title
+            label.setEmojis(emojis, identifier: Optional<String>.none)
+            let stack = UIStackView(arrangedSubviews: [
+                icon,
+                label,
+            ])
+            stack.axis = .horizontal
+            stack.alignment = .center
+            stack.spacing = 8
+            addArrangedSubview(stack)
+        }
+    }
+
+}

Tusker/Screens/Utilities/Previewing.swift

@@ -300,6 +300,41 @@ extension MenuActionProvider {
                 }))
             }
             
+            if mastodonController.instanceFeatures.editStatuses {
+                actionsSection.append(UIAction(title: "Edit Post", image: UIImage(systemName: "pencil"), handler: { [weak self] _ in
+                    guard let navigationDelegate = self?.navigationDelegate else {
+                        return
+                    }
+                    @MainActor func doEdit() async {
+                        let source: StatusSource
+                        do {
+                            source = try await FetchStatusSourceService(statusID: status.id, delegate: navigationDelegate).run()
+                        } catch let error as Client.Error {
+                            self?.handleError(error, title: "Error Fetching Source")
+                            return
+                        } catch {
+                            return
+                        }
+                        let draft = navigationDelegate.apiController.createDraft(editing: status, source: source)
+                        navigationDelegate.compose(editing: draft)
+                    }
+                    if status.poll != nil {
+                        let alert = UIAlertController(title: "Edit Post with Poll?", message: "This will remove any votes that have already been placed.", preferredStyle: .alert)
+                        alert.addAction(UIAlertAction(title: "Cancel", style: .cancel))
+                        alert.addAction(UIAlertAction(title: "Edit", style: .default, handler: { _ in
+                            Task {
+                                await doEdit()
+                            }
+                        }))
+                        navigationDelegate.present(alert, animated: true)
+                    } else {
+                        Task {
+                            await doEdit()
+                        }
+                    }
+                }))
+            }
+            
             actionsSection.append(UIMenu(title: "Delete Post", image: UIImage(systemName: "trash"), children: [
                 UIAction(title: "Cancel", handler: { _ in }),
                 UIAction(title: "Delete Post", image: UIImage(systemName: "trash"), attributes: .destructive, handler: { [weak self] _ in
@@ -428,19 +463,24 @@ extension MenuActionProvider {
         }
     }
     
-    private func relationshipAction(_ fetch: Bool, accountID: String, mastodonController: MastodonController, builder: @escaping @MainActor (RelationshipMO, MastodonController) -> UIMenuElement) -> UIDeferredMenuElement {
+    private func relationshipAction(_ fetch: Bool, accountID: String, mastodonController: MastodonController, builder: @escaping @MainActor (RelationshipMO, MastodonController) -> UIMenuElement?) -> UIDeferredMenuElement {
         return UIDeferredMenuElement.uncached({ @MainActor elementHandler in
             // workaround for #198, may result in showing outdated relationship, so only do so where necessary
             if !fetch || ProcessInfo.processInfo.isiOSAppOnMac,
                let mo = mastodonController.persistentContainer.relationship(forAccount: accountID) {
-                elementHandler([builder(mo, mastodonController)])
+                if let action = builder(mo, mastodonController) {
+                    elementHandler([action])
+                } else {
+                    elementHandler([])
+                }
             } else {
                 let relationship = Task {
                     await fetchRelationship(accountID: accountID, mastodonController: mastodonController)
                 }
                 Task { @MainActor in
-                    if let relationship = await relationship.value {
+                    if let relationship = await relationship.value,
-                        elementHandler([builder(relationship, mastodonController)])
+                       let action = builder(relationship, mastodonController) {
+                        elementHandler([action])
                     } else {
                         elementHandler([])
                     }
@@ -549,7 +589,11 @@ extension MenuActionProvider {
     }
     
     @MainActor
-    private func hideReblogsAction(for relationship: RelationshipMO, mastodonController: MastodonController) -> UIMenuElement {
+    private func hideReblogsAction(for relationship: RelationshipMO, mastodonController: MastodonController) -> UIMenuElement? {
+        // don't show action for people that the user isn't following and isn't already hiding reblogs for
+        guard relationship.following || relationship.showingReblogs else {
+            return nil
+        }
         let title = relationship.showingReblogs ? "Hide Reblogs" : "Show Reblogs"
         // todo: need alternate repeat icon to use here
         return UIAction(title: title, image: nil) { [weak self] _ in

Tusker/Views/Attachments/AttachmentsContainerView.swift

@@ -15,7 +15,7 @@ class AttachmentsContainerView: UIView {
     
     weak var delegate: AttachmentViewDelegate?
     
-    var statusID: String!
+    private var attachmentTokens: [AttachmentToken] = []
     var attachments: [Attachment]!
     
     let attachmentViews: NSHashTable<AttachmentView> = .weakObjects()
@@ -60,13 +60,16 @@ class AttachmentsContainerView: UIView {
     
     // MARK: - User Interaface
     
-    func updateUI(status: StatusMO) {
+    func updateUI(attachments: [Attachment]) {
-        guard self.statusID != status.id else {
+        let attachments = attachments.filter { AttachmentsContainerView.supportedAttachmentTypes.contains($0.kind) }
+        let newTokens = attachments.map { AttachmentToken(attachment: $0) }
+        
+        guard self.attachmentTokens != newTokens else {
             return
         }
         
-        self.statusID = status.id
+        self.attachments = attachments
-        attachments = status.attachments.filter { AttachmentsContainerView.supportedAttachmentTypes.contains($0.kind) }
+        self.attachmentTokens = newTokens
         
         attachmentViews.allObjects.forEach { $0.removeFromSuperview() }
         attachmentViews.removeAllObjects()
@@ -461,3 +464,15 @@ fileprivate extension UIView {
         return heightAnchor.constraint(equalTo: superview!.heightAnchor, multiplier: 0.5, constant: -spacing / 2)
     }
 }
+
+// A token that represents properties of attachments that the container needs to take into account when deciding whether to update
+fileprivate struct AttachmentToken: Equatable {
+    let url: URL
+    // to show the alt badge or not
+    let hasDescription: Bool
+    
+    init(attachment: Attachment) {
+        self.url = attachment.url
+        self.hasDescription = attachment.description != nil
+    }
+}

Tusker/Views/BaseEmojiLabel.swift

@@ -13,17 +13,18 @@ import WebURLFoundationExtras
 private let emojiRegex = try! NSRegularExpression(pattern: ":(\\w+):", options: [])
 
 protocol BaseEmojiLabel: AnyObject {
-    var emojiIdentifier: String? { get set }
+    var emojiIdentifier: AnyHashable? { get set }
     var emojiRequests: [ImageCache.Request] { get set }
     var emojiFont: UIFont { get }
     var emojiTextColor: UIColor { get }
 }
 
 extension BaseEmojiLabel {
-    func replaceEmojis(in attributedString: NSAttributedString, emojis: [Emoji], identifier: String?, setAttributedString: @escaping (_ attributedString: NSAttributedString, _ didReplaceEmojis: Bool) -> Void) {
+    func replaceEmojis<ID: Hashable>(in attributedString: NSAttributedString, emojis: [Emoji], identifier: ID?, setAttributedString: @escaping (_ attributedString: NSAttributedString, _ didReplaceEmojis: Bool) -> Void) {
         // blergh
         precondition(Thread.isMainThread)
         
+        let identifier = AnyHashable(identifier)
         emojiIdentifier = identifier
         emojiRequests.forEach { $0.cancel() }
         emojiRequests = []
@@ -138,7 +139,7 @@ extension BaseEmojiLabel {
         }
     }
     
-    func replaceEmojis(in string: String, emojis: [Emoji], identifier: String?, setAttributedString: @escaping (_ attributedString: NSAttributedString, _ didReplaceEmojis: Bool) -> Void) {
+    func replaceEmojis<ID: Hashable>(in string: String, emojis: [Emoji], identifier: ID?, setAttributedString: @escaping (_ attributedString: NSAttributedString, _ didReplaceEmojis: Bool) -> Void) {
         replaceEmojis(in: NSAttributedString(string: string), emojis: emojis, identifier: identifier, setAttributedString: setAttributedString)
     }
 }

Tusker/Views/ContentTextView.swift

@@ -42,7 +42,7 @@ class ContentTextView: LinkTextView, BaseEmojiLabel {
     
     private(set) var hasEmojis = false
     
-    var emojiIdentifier: String?
+    var emojiIdentifier: AnyHashable?
     var emojiRequests: [ImageCache.Request] = []
     var emojiFont: UIFont { defaultFont }
     var emojiTextColor: UIColor { defaultColor }
@@ -81,7 +81,7 @@ class ContentTextView: LinkTextView, BaseEmojiLabel {
     }
     
     // MARK: - Emojis
-    func setEmojis(_ emojis: [Emoji], identifier: String?) {
+    func setEmojis<ID: Hashable>(_ emojis: [Emoji], identifier: ID?) {
         replaceEmojis(in: attributedText!, emojis: emojis, identifier: identifier) { attributedString, didReplaceEmojis in
             guard didReplaceEmojis else {
                 return

Tusker/Views/EmojiLabel.swift

@@ -13,16 +13,16 @@ class EmojiLabel: UILabel, BaseEmojiLabel {
     
     private(set) var hasEmojis = false
     
-    var emojiIdentifier: String?
+    var emojiIdentifier: AnyHashable?
     var emojiRequests: [ImageCache.Request] = []
     var emojiFont: UIFont { font }
     var emojiTextColor: UIColor { textColor }
     
-    func setEmojis(_ emojis: [Emoji], identifier: String) {
+    func setEmojis<ID: Hashable>(_ emojis: [Emoji], identifier: ID?) {
         guard emojis.count > 0, let attributedText = attributedText else { return }
 
         replaceEmojis(in: attributedText, emojis: emojis, identifier: identifier) { [weak self] (newAttributedText, didReplaceEmojis) in
-            guard let self = self, self.emojiIdentifier == identifier else { return }
+            guard let self = self, self.emojiIdentifier == AnyHashable(identifier) else { return }
             self.hasEmojis = didReplaceEmojis
             self.attributedText = newAttributedText
             self.setNeedsLayout()

Tusker/Views/MultiSourceEmojiLabel.swift

@@ -12,14 +12,14 @@ import Pachyderm
 private let emojiRegex = try! NSRegularExpression(pattern: ":(\\w+):", options: [])
 
 class MultiSourceEmojiLabel: UILabel, BaseEmojiLabel {
-    var emojiIdentifier: String?
+    var emojiIdentifier: AnyHashable?
     var emojiRequests = [ImageCache.Request]()
     var emojiFont: UIFont { font }
     var emojiTextColor: UIColor { textColor }
     
     var combiner: (([NSAttributedString]) -> NSAttributedString)?
     
-    func setEmojis(pairs: [(String, [Emoji])], identifier: String) {
+    func setEmojis<ID: Hashable>(pairs: [(String, [Emoji])], identifier: ID) {
         guard pairs.count > 0 else { return }
         
         self.emojiIdentifier = identifier
@@ -40,7 +40,7 @@ class MultiSourceEmojiLabel: UILabel, BaseEmojiLabel {
             self.replaceEmojis(in: string, emojis: emojis, identifier: identifier) { (attributedString, _) in
                 attributedStrings[index] = attributedString
                 DispatchQueue.main.async { [weak self] in
-                    guard let self = self, self.emojiIdentifier == identifier else { return }
+                    guard let self = self, self.emojiIdentifier == AnyHashable(identifier) else { return }
                     recombine()
                 }
             }

Tusker/Views/Poll/PollOptionCheckboxView.swift

@@ -59,6 +59,10 @@ class PollOptionCheckboxView: UIView {
         fatalError("init(coder:) has not been implemented")
     }
     
+    override var intrinsicContentSize: CGSize {
+        CGSize(width: 20, height: 20)
+    }
+    
     private func updateStyle() {
         imageView.isHidden = !isChecked
         if voted || readOnly {

Tusker/Views/Poll/StatusPollView.swift

@@ -145,18 +145,23 @@ class StatusPollView: UIView {
     }
     
     @objc private func votePressed() {
+        guard let statusID,
+              let poll else {
+            return
+        }
+        
         optionsView.isEnabled = false
         voteButton.isEnabled = false
         voteButton.disabledTitle = "Voted"
         
         UIImpactFeedbackGenerator(style: .light).impactOccurred()
         
-        let request = Poll.vote(poll!.id, choices: optionsView.checkedOptionIndices)
+        let request = Poll.vote(poll.id, choices: optionsView.checkedOptionIndices)
         mastodonController.run(request) { (response) in
             switch response {
             case let .failure(error):
                 DispatchQueue.main.async {
-                    self.updateUI(status: self.mastodonController.persistentContainer.status(for: self.statusID)!, poll: self.poll)
+                    self.updateUI(status: self.mastodonController.persistentContainer.status(for: statusID)!, poll: poll)
                     
                     if let delegate = self.delegate {
                         let config = ToastConfiguration(from: error, with: "Error Voting", in: delegate, retryAction: nil)
@@ -167,7 +172,7 @@ class StatusPollView: UIView {
             case let .success(poll, _):
                 let container = self.mastodonController.persistentContainer
                 DispatchQueue.main.async {
-                    guard let status = container.status(for: self.statusID) else {
+                    guard let status = container.status(for: statusID) else {
                         return
                     }
                     status.poll = poll

Tusker/Views/Status/ConversationMainStatusCollectionViewCell.swift

@@ -116,7 +116,7 @@ class ConversationMainStatusCollectionViewCell: UICollectionViewListCell, Status
         $0.addTarget(self, action: #selector(collapseButtonPressed), for: .touchUpInside)
     }
     
-    let contentContainer = StatusContentContainer(useTopSpacer: true).configure {
+    let contentContainer = StatusContentContainer<StatusContentTextView, StatusPollView>(useTopSpacer: true).configure {
         $0.contentTextView.defaultFont = ConversationMainStatusCollectionViewCell.contentFont
         $0.contentTextView.monospaceFont = ConversationMainStatusCollectionViewCell.monospaceFont
         $0.contentTextView.paragraphStyle = ConversationMainStatusCollectionViewCell.contentParagraphStyle
@@ -154,6 +154,12 @@ class ConversationMainStatusCollectionViewCell: UICollectionViewListCell, Status
         $0.adjustsFontForContentSizeCategory = true
     }
     
+    private lazy var editTimestampButton = UIButton().configure {
+        $0.titleLabel!.adjustsFontForContentSizeCategory = true
+        $0.addTarget(self, action: #selector(editTimestampPressed), for: .touchUpInside)
+        $0.isPointerInteractionEnabled = true
+    }
+    
     private let firstSeparator = UIView().configure {
         $0.backgroundColor = .separator
         NSLayoutConstraint.activate([
@@ -171,6 +177,7 @@ class ConversationMainStatusCollectionViewCell: UICollectionViewListCell, Status
         firstSeparator,
         actionsCountHStack,
         timestampAndClientLabel,
+        editTimestampButton,
         secondSeparator,
     ]).configure {
         $0.axis = .vertical
@@ -341,11 +348,40 @@ class ConversationMainStatusCollectionViewCell: UICollectionViewListCell, Status
         accountDetailAccessibilityElement.navigationDelegate = delegate
         accountDetailAccessibilityElement.accountID = accountID
         
+        let metaButtonAttributes = AttributeContainer([
+            .font: ConversationMainStatusCollectionViewCell.metaFont
+        ])
+        
+        let favoritesFormat = NSLocalizedString("favorites count", comment: "conv main status favorites button label")
+        var favoritesConfig = UIButton.Configuration.plain()
+        favoritesConfig.baseForegroundColor = .secondaryLabel
+        favoritesConfig.attributedTitle = AttributedString(String.localizedStringWithFormat(favoritesFormat, status.favouritesCount), attributes: metaButtonAttributes)
+        favoritesConfig.contentInsets = .zero
+        favoritesCountButton.configuration = favoritesConfig
+        
+        let reblogsFormat = NSLocalizedString("reblogs count", comment: "conv main status reblogs button label")
+        var reblogsConfig = UIButton.Configuration.plain()
+        reblogsConfig.baseForegroundColor = .secondaryLabel
+        reblogsConfig.attributedTitle = AttributedString(String.localizedStringWithFormat(reblogsFormat, status.reblogsCount), attributes: metaButtonAttributes)
+        reblogsConfig.contentInsets = .zero
+        reblogsCountButton.configuration = reblogsConfig
+        
         var timestampAndClientText = ConversationMainStatusCollectionViewCell.dateFormatter.string(from: status.createdAt)
         if let application = status.applicationName {
             timestampAndClientText += " • \(application)"
         }
         timestampAndClientLabel.text = timestampAndClientText
+        
+        if let editedAt = status.editedAt {
+            editTimestampButton.isHidden = false
+            var config = UIButton.Configuration.plain()
+            config.baseForegroundColor = .secondaryLabel
+            config.attributedTitle = AttributedString("Edited on \(ConversationMainStatusCollectionViewCell.dateFormatter.string(from: editedAt))", attributes: metaButtonAttributes)
+            config.contentInsets = .zero
+            editTimestampButton.configuration = config
+        } else {
+            editTimestampButton.isHidden = true
+        }
     }
     
     private func createObservers() {
@@ -356,28 +392,6 @@ class ConversationMainStatusCollectionViewCell: UICollectionViewListCell, Status
         baseCreateObservers()
     }
     
-    func updateStatusState(status: StatusMO) {
-        baseUpdateStatusState(status: status)
-        
-        let attributes = AttributeContainer([
-            .font: ConversationMainStatusCollectionViewCell.metaFont
-        ])
-        
-        let favoritesFormat = NSLocalizedString("favorites count", comment: "conv main status favorites button label")
-        var favoritesConfig = UIButton.Configuration.plain()
-        favoritesConfig.baseForegroundColor = .secondaryLabel
-        favoritesConfig.attributedTitle = AttributedString(String.localizedStringWithFormat(favoritesFormat, status.favouritesCount), attributes: attributes)
-        favoritesConfig.contentInsets = .zero
-        favoritesCountButton.configuration = favoritesConfig
-        
-        let reblogsFormat = NSLocalizedString("reblogs count", comment: "conv main status reblogs button label")
-        var reblogsConfig = UIButton.Configuration.plain()
-        reblogsConfig.baseForegroundColor = .secondaryLabel
-        reblogsConfig.attributedTitle = AttributedString(String.localizedStringWithFormat(reblogsFormat, status.reblogsCount), attributes: attributes)
-        reblogsConfig.contentInsets = .zero
-        reblogsCountButton.configuration = reblogsConfig
-    }
-    
     func updateUIForPreferences(status: StatusMO) {
         baseUpdateUIForPreferences(status: status)
     }
@@ -441,6 +455,10 @@ class ConversationMainStatusCollectionViewCell: UICollectionViewListCell, Status
         toggleReblog()
     }
     
+    @objc private func editTimestampPressed() {
+        delegate?.show(StatusEditHistoryViewController(statusID: statusID, mastodonController: mastodonController), sender: nil)
+    }
+    
 }
 
 private class ConversationMainStatusAccountDetailAccessibilityElement: UIAccessibilityElement {

Tusker/Views/Status/StatusCollectionViewCell.swift

@@ -24,7 +24,7 @@ protocol StatusCollectionViewCell: UICollectionViewCell, AttachmentViewDelegate
     var usernameLabel: UILabel { get }
     var contentWarningLabel: EmojiLabel { get }
     var collapseButton: StatusCollapseButton { get }
-    var contentContainer: StatusContentContainer { get }
+    var contentContainer: StatusContentContainer<StatusContentTextView, StatusPollView> { get }
     var replyButton: UIButton { get }
     var favoriteButton: UIButton { get }
     var reblogButton: UIButton { get }
@@ -45,7 +45,6 @@ protocol StatusCollectionViewCell: UICollectionViewCell, AttachmentViewDelegate
     var cancellables: Set<AnyCancellable> { get set }
     
     func updateUIForPreferences(status: StatusMO)
-    func updateStatusState(status: StatusMO)
 }
 
 // MARK: UI Configuration
@@ -58,11 +57,8 @@ extension StatusCollectionViewCell {
         mastodonController.persistentContainer.statusSubject
             .receive(on: DispatchQueue.main)
             .filter { [unowned self] in $0 == self.statusID }
-            .sink { [unowned self] in
+            .sink { [unowned self] _ in
-                if let mastodonController = self.mastodonController,
+                self.delegate?.statusCellNeedsReconfigure(self, animated: true, completion: nil)
-                   let status = mastodonController.persistentContainer.status(for: $0) {
-                    self.updateStatusState(status: status)
-                }
             }
             .store(in: &cancellables)
         
@@ -87,7 +83,11 @@ extension StatusCollectionViewCell {
         contentContainer.contentTextView.setTextFrom(status: status, precomputed: precomputedContent)
         contentContainer.contentTextView.navigationDelegate = delegate
         contentContainer.attachmentsView.delegate = self
-        contentContainer.attachmentsView.updateUI(status: status)
+        contentContainer.attachmentsView.updateUI(attachments: status.attachments)
+        contentContainer.pollView.isHidden = status.poll == nil
+        contentContainer.pollView.mastodonController = mastodonController
+        contentContainer.pollView.delegate = delegate
+        contentContainer.pollView.updateUI(status: status, poll: status.poll)
         if Preferences.shared.showLinkPreviews {
             contentContainer.cardView.updateUI(status: status)
             contentContainer.cardView.isHidden = status.card == nil
@@ -98,7 +98,6 @@ extension StatusCollectionViewCell {
         }
         
         updateUIForPreferences(status: status)
-        updateStatusState(status: status)
         
         contentWarningLabel.text = status.spoilerText
         contentWarningLabel.isHidden = status.spoilerText.isEmpty
@@ -106,14 +105,36 @@ extension StatusCollectionViewCell {
             contentWarningLabel.setEmojis(status.emojis, identifier: statusID)
         }
         
-        reblogButton.isEnabled = reblogEnabled(status: status)
         replyButton.isEnabled = mastodonController.loggedIn
-        favoriteButton.isEnabled = mastodonController.loggedIn
         
-        if statusState.unknown {
+        favoriteButton.isEnabled = mastodonController.loggedIn
+        if status.favourited {
+            favoriteButton.tintColor = UIColor(displayP3Red: 1, green: 0.8, blue: 0, alpha: 1)
+            favoriteButton.accessibilityLabel = NSLocalizedString("Undo Favorite", comment: "undo favorite button accessibility label")
+        } else {
+            favoriteButton.tintColor = nil
+            favoriteButton.accessibilityLabel = NSLocalizedString("Favorite", comment: "favorite button accessibility label")
+        }
+        
+        reblogButton.isEnabled = reblogEnabled(status: status)
+        if status.reblogged {
+            reblogButton.tintColor = UIColor(displayP3Red: 1, green: 0.8, blue: 0, alpha: 1)
+            reblogButton.accessibilityLabel = NSLocalizedString("Undo Reblog", comment: "undo reblog button accessibility label")
+        } else {
+            reblogButton.tintColor = nil
+            reblogButton.accessibilityLabel = NSLocalizedString("Reblog", comment: "reblog button accessibility label")
+        }
+        
+        // keep menu in sync with changed states e.g. bookmarked, muted
+        // do not include reply action here, because the cell already contains a button for it
+        moreButton.menu = UIMenu(title: "", image: nil, identifier: nil, options: [], children: delegate?.actionsForStatus(status, source: .view(moreButton), includeStatusButtonActions: false) ?? [])
+        
+        let didResolve = statusState.resolveFor(status: status) {
             // layout so that we can take the content height into consideration when deciding whether to collapse
             layoutIfNeeded()
-            statusState.resolveFor(status: status, height: contentContainer.visibleSubviewHeight)
+            return contentContainer.visibleSubviewHeight
+        }
+        if didResolve {
             if statusState.collapsible! && showStatusAutomatically {
                 statusState.collapsed = false
             }
@@ -191,32 +212,6 @@ extension StatusCollectionViewCell {
         displayNameLabel.updateForAccountDisplayName(account: status.account)
     }
     
-    func baseUpdateStatusState(status: StatusMO) {
-        if status.favourited {
-            favoriteButton.tintColor = UIColor(displayP3Red: 1, green: 0.8, blue: 0, alpha: 1)
-            favoriteButton.accessibilityLabel = NSLocalizedString("Undo Favorite", comment: "undo favorite button accessibility label")
-        } else {
-            favoriteButton.tintColor = nil
-            favoriteButton.accessibilityLabel = NSLocalizedString("Favorite", comment: "favorite button accessibility label")
-        }
-        if status.reblogged {
-            reblogButton.tintColor = UIColor(displayP3Red: 1, green: 0.8, blue: 0, alpha: 1)
-            reblogButton.accessibilityLabel = NSLocalizedString("Undo Reblog", comment: "undo reblog button accessibility label")
-        } else {
-            reblogButton.tintColor = nil
-            reblogButton.accessibilityLabel = NSLocalizedString("Reblog", comment: "reblog button accessibility label")
-        }
-        
-        // keep menu in sync with changed states e.g. bookmarked, muted
-        // do not include reply action here, because the cell already contains a button for it
-        moreButton.menu = UIMenu(title: "", image: nil, identifier: nil, options: [], children: delegate?.actionsForStatus(status, source: .view(moreButton), includeStatusButtonActions: false) ?? [])
-        
-        contentContainer.pollView.isHidden = status.poll == nil
-        contentContainer.pollView.mastodonController = mastodonController
-        contentContainer.pollView.delegate = delegate
-        contentContainer.pollView.updateUI(status: status, poll: status.poll)
-    }
-    
     func setShowThreadLinks(prev: Bool, next: Bool) {
         if prev {
             if let prevThreadLinkView {

Tusker/Views/Status/StatusContentContainer.swift

@@ -8,7 +8,7 @@
 
 import UIKit
 
-class StatusContentContainer: UIView {
+class StatusContentContainer<ContentView: ContentTextView, PollView: UIView>: UIView {
     
     private var useTopSpacer = false
     private let topSpacer = UIView().configure {
@@ -17,7 +17,7 @@ class StatusContentContainer: UIView {
         $0.heightAnchor.constraint(equalToConstant: 4).isActive = true
     }
 
-    let contentTextView = StatusContentTextView().configure {
+    let contentTextView = ContentView().configure {
          $0.adjustsFontForContentSizeCategory = true
          $0.isScrollEnabled = false
          $0.backgroundColor = nil
@@ -33,7 +33,7 @@ class StatusContentContainer: UIView {
     
     let attachmentsView = AttachmentsContainerView()
     
-    let pollView = StatusPollView()
+    let pollView = PollView()
     
     private var arrangedSubviews: [UIView] {
         if useTopSpacer {

Tusker/Views/Status/TimelineStatusCollectionViewCell.swift

@@ -178,7 +178,7 @@ class TimelineStatusCollectionViewCell: UICollectionViewListCell, StatusCollecti
         $0.addTarget(self, action: #selector(collapseButtonPressed), for: .touchUpInside)
     }
     
-    let contentContainer = StatusContentContainer(useTopSpacer: false).configure {
+    let contentContainer = StatusContentContainer<StatusContentTextView, StatusPollView>(useTopSpacer: false).configure {
         $0.contentTextView.defaultFont = TimelineStatusCollectionViewCell.contentFont
         $0.contentTextView.monospaceFont = TimelineStatusCollectionViewCell.monospaceFont
         $0.contentTextView.paragraphStyle = TimelineStatusCollectionViewCell.contentParagraphStyle
@@ -625,10 +625,6 @@ class TimelineStatusCollectionViewCell: UICollectionViewListCell, StatusCollecti
         }
     }
     
-    func updateStatusState(status: StatusMO) {
-        baseUpdateStatusState(status: status)
-    }
-    
     private func updateTimestamp() {
         guard let mastodonController,
               let status = mastodonController.persistentContainer.status(for: statusID) else {
@@ -641,7 +637,8 @@ class TimelineStatusCollectionViewCell: UICollectionViewListCell, StatusCollecti
         // if there's a pending update timestamp work item, cancel it
         updateTimestampWorkItem?.cancel()
         
-        timestampLabel.text = status.createdAt.timeAgoString()
+        let timeAgo = status.createdAt.timeAgoString()
+        timestampLabel.text = "\(timeAgo)\(status.editedAt != nil ? "*" : "")"
         
         let delay: DispatchTimeInterval?
         switch status.createdAt.timeAgo().1 {