[WIP]

submodules/AccountContext/Sources/AccountContext.swift

@@ -471,6 +471,7 @@ public enum PeerInfoControllerMode {
     case nearbyPeer(distance: Int32)
     case group(PeerId)
     case reaction(MessageId)
+    case forumTopic(thread: ChatReplyThreadMessage)
 }
 
 public enum ContactListActionItemInlineIconPosition {
@@ -749,7 +750,7 @@ public protocol SharedAccountContext: AnyObject {
     
     func makeRecentSessionsController(context: AccountContext, activeSessionsContext: ActiveSessionsContext) -> ViewController & RecentSessionsController
     
-    func makeChatQrCodeScreen(context: AccountContext, peer: Peer) -> ViewController
+    func makeChatQrCodeScreen(context: AccountContext, peer: Peer, threadId: Int64?) -> ViewController
     
     func makePremiumIntroController(context: AccountContext, source: PremiumIntroSource) -> ViewController
     

submodules/ChatListUI/Sources/ChatListController.swift

@@ -1543,8 +1543,11 @@ public class ChatListControllerImpl: TelegramBaseController, ChatListController
                     let context = strongSelf.context
                     let controller = ForumCreateTopicScreen(context: context, peerId: peerId, mode: .create)
                     controller.navigationPresentation = .modal
+                    
                     controller.completion = { title, fileId in
-                        let _ = (context.engine.peers.createForumChannelTopic(id: peerId, title: title, iconFileId: fileId)
+                        let availableColors: [Int32] = [0x6FB9F0, 0xFFD67E, 0xCB86DB, 0x8EEE98, 0xFF93B2, 0xFB6F5F]
+                        
+                        let _ = (context.engine.peers.createForumChannelTopic(id: peerId, title: title, iconColor: availableColors.randomElement()!, iconFileId: fileId)
                         |> deliverOnMainQueue).start(next: { topicId in
                             let _ = context.sharedContext.navigateToForumThread(context: context, peerId: peerId, threadId: topicId, navigationController: navigationController, activateInput: .text).start()
                         })
@@ -2528,7 +2531,9 @@ public class ChatListControllerImpl: TelegramBaseController, ChatListController
             let controller = ForumCreateTopicScreen(context: context, peerId: peerId, mode: .create)
             controller.navigationPresentation = .modal
             controller.completion = { title, fileId in
-                let _ = (context.engine.peers.createForumChannelTopic(id: peerId, title: title, iconFileId: fileId)
+                let availableColors: [Int32] = [0x6FB9F0, 0xFFD67E, 0xCB86DB, 0x8EEE98, 0xFF93B2, 0xFB6F5F]
+                
+                let _ = (context.engine.peers.createForumChannelTopic(id: peerId, title: title, iconColor: availableColors.randomElement()!, iconFileId: fileId)
                 |> deliverOnMainQueue).start(next: { topicId in
                     if let navigationController = (sourceController.navigationController as? NavigationController) {
                         let _ = context.sharedContext.navigateToForumThread(context: context, peerId: peerId, threadId: topicId, navigationController: navigationController, activateInput: .text).start()

submodules/ContactListUI/Sources/ContactsController.swift

@@ -487,7 +487,7 @@ public class ContactsController: ViewController {
                             let _ = (strongSelf.context.account.postbox.loadedPeerWithId(strongSelf.context.account.peerId)
                             |> deliverOnMainQueue).start(next: { [weak self, weak controller] peer in
                                 if let strongSelf = self, let controller = controller {
-                                    controller.present(strongSelf.context.sharedContext.makeChatQrCodeScreen(context: strongSelf.context, peer: peer), in: .window(.root))
+                                    controller.present(strongSelf.context.sharedContext.makeChatQrCodeScreen(context: strongSelf.context, peer: peer, threadId: nil), in: .window(.root))
                                 }
                             })
                         }

submodules/TelegramCore/Sources/ApiUtils/TelegramMediaAction.swift

@@ -89,13 +89,13 @@ func telegramMediaActionFromApiAction(_ action: Api.MessageAction) -> TelegramMe
         return TelegramMediaAction(action: .giftPremium(currency: currency, amount: amount, months: months))
     case let .messageActionTopicCreate(_, title, iconColor, iconEmojiId):
         return TelegramMediaAction(action: .topicCreated(title: title, iconColor: iconColor, iconFileId: iconEmojiId))
-    case let .messageActionTopicEdit(_, title, iconEmojiId):
+    case let .messageActionTopicEdit(flags, title, iconEmojiId):
         var componenents: [TelegramMediaActionType.ForumTopicEditComponent] = []
         //messageActionTopicEdit#b117a9f5 flags:# title:flags.0?string icon_emoji_id:flags.1?long = MessageAction;
         if let title {
             componenents.append(.title(title))
         }
-        if let iconEmojiId {
+        if (flags & (1 << 1)) != 0 {
             componenents.append(.iconFileId(iconEmojiId == 0 ? nil : iconEmojiId))
         }
         return TelegramMediaAction(action: .topicEdited(components: componenents))

submodules/TelegramCore/Sources/ForumChannels.swift

@@ -123,6 +123,55 @@ func _internal_createForumChannelTopic(account: Account, peerId: PeerId, title:
     }
 }
 
+public enum EditForumChannelTopicError {
+    case generic
+}
+
+func _internal_editForumChannelTopic(account: Account, peerId: PeerId, threadId: Int64, title: String, iconFileId: Int64?) -> Signal<Never, EditForumChannelTopicError> {
+    return account.postbox.transaction { transaction -> Api.InputChannel? in
+        return transaction.getPeer(peerId).flatMap(apiInputChannel)
+    }
+    |> castError(EditForumChannelTopicError.self)
+    |> mapToSignal { inputChannel -> Signal<Never, EditForumChannelTopicError> in
+        guard let inputChannel = inputChannel else {
+            return .fail(.generic)
+        }
+        var flags: Int32 = 0
+        flags |= (1 << 0)
+        flags |= (1 << 1)
+        
+        return account.network.request(Api.functions.channels.editForumTopic(
+            flags: flags,
+            channel: inputChannel,
+            topicId: Int32(clamping: threadId),
+            title: title,
+            iconEmojiId: iconFileId ?? 0
+        ))
+        |> mapError { _ -> EditForumChannelTopicError in
+            return .generic
+        }
+        |> mapToSignal { result -> Signal<Never, EditForumChannelTopicError> in
+            account.stateManager.addUpdates(result)
+            
+            return account.postbox.transaction { transaction -> Void in
+                if let initialData = transaction.getMessageHistoryThreadInfo(peerId: peerId, threadId: threadId)?.get(MessageHistoryThreadData.self) {
+                    var data = initialData
+                    
+                    data.info = EngineMessageHistoryThread.Info(title: title, icon: iconFileId, iconColor: data.info.iconColor)
+                    
+                    if data != initialData {
+                        if let entry = CodableEntry(data) {
+                            transaction.setMessageHistoryThreadInfo(peerId: peerId, threadId: threadId, info: entry)
+                        }
+                    }
+                }
+            }
+            |> castError(EditForumChannelTopicError.self)
+            |> ignoreValues
+        }
+    }
+}
+
 func _internal_setChannelForumMode(account: Account, peerId: PeerId, isForum: Bool) -> Signal<Never, NoError> {
     return account.postbox.transaction { transaction -> Api.InputChannel? in
         return transaction.getPeer(peerId).flatMap(apiInputChannel)

submodules/TelegramCore/Sources/TelegramEngine/Messages/SparseMessageList.swift

@@ -7,6 +7,7 @@ public final class SparseMessageList {
         private let queue: Queue
         private let account: Account
         private let peerId: PeerId
+        private let threadId: Int64?
         private let messageTag: MessageTags
 
         private struct TopSection: Equatable {
@@ -91,14 +92,16 @@ public final class SparseMessageList {
 
         let statePromise = Promise<SparseMessageList.State>()
 
-        init(queue: Queue, account: Account, peerId: PeerId, messageTag: MessageTags) {
+        init(queue: Queue, account: Account, peerId: PeerId, threadId: Int64?, messageTag: MessageTags) {
             self.queue = queue
             self.account = account
             self.peerId = peerId
+            self.threadId = threadId
             self.messageTag = messageTag
 
             self.resetTopSection()
 
+            if self.threadId == nil {
                 self.sparseItemsDisposable = (self.account.postbox.transaction { transaction -> Api.InputPeer? in
                     return transaction.getPeer(peerId).flatMap(apiInputPeer)
                 }
@@ -161,6 +164,7 @@ public final class SparseMessageList {
                         strongSelf.updateState()
                     }
                 })
+            }
 
             self.deletedMessagesDisposable = (account.postbox.combinedView(keys: [.deletedMessages(peerId: peerId)])
             |> deliverOn(self.queue)).start(next: { [weak self] views in
@@ -183,12 +187,16 @@ public final class SparseMessageList {
 
         private func resetTopSection() {
             let count: Int
-            /*#if DEBUG
-            count = 20
-            #else*/
             count = 200
-            //#endif
+            
-            self.topItemsDisposable.set((self.account.postbox.aroundMessageHistoryViewForLocation(.peer(peerId: peerId), anchor: .upperBound, ignoreMessagesInTimestampRange: nil, count: count, fixedCombinedReadStates: nil, topTaggedMessageIdNamespaces: Set(), tagMask: self.messageTag, appendMessagesFromTheSameGroup: false, namespaces: .not(Set(Namespaces.Message.allScheduled)), orderStatistics: [])
+            let location: ChatLocationInput
+            if let threadId = self.threadId {
+                location = .thread(peerId: self.peerId, threadId: threadId, data: .single(MessageHistoryViewExternalInput(content: .thread(peerId: self.peerId, id: threadId, holes: [:]), maxReadIncomingMessageId: nil, maxReadOutgoingMessageId: nil)))
+            } else {
+                location = .peer(peerId: self.peerId)
+            }
+            
+            self.topItemsDisposable.set((self.account.postbox.aroundMessageHistoryViewForLocation(location, anchor: .upperBound, ignoreMessagesInTimestampRange: nil, count: count, fixedCombinedReadStates: nil, topTaggedMessageIdNamespaces: Set(), tagMask: self.messageTag, appendMessagesFromTheSameGroup: false, namespaces: .not(Set(Namespaces.Message.allScheduled)), orderStatistics: [])
             |> deliverOn(self.queue)).start(next: { [weak self] view, updateType, _ in
                 guard let strongSelf = self else {
                     return
@@ -688,11 +696,11 @@ public final class SparseMessageList {
         }
     }
 
-    init(account: Account, peerId: PeerId, messageTag: MessageTags) {
+    init(account: Account, peerId: PeerId, threadId: Int64?, messageTag: MessageTags) {
         self.queue = Queue()
         let queue = self.queue
         self.impl = QueueLocalObject(queue: queue, generate: {
-            return Impl(queue: queue, account: account, peerId: peerId, messageTag: messageTag)
+            return Impl(queue: queue, account: account, peerId: peerId, threadId: threadId, messageTag: messageTag)
         })
     }
 

submodules/TelegramCore/Sources/TelegramEngine/Messages/TelegramEngineMessages.swift

@@ -285,8 +285,8 @@ public extension TelegramEngine {
             }
         }
 
-        public func sparseMessageList(peerId: EnginePeer.Id, tag: EngineMessage.Tags) -> SparseMessageList {
+        public func sparseMessageList(peerId: EnginePeer.Id, threadId: Int64?, tag: EngineMessage.Tags) -> SparseMessageList {
-            return SparseMessageList(account: self.account, peerId: peerId, messageTag: tag)
+            return SparseMessageList(account: self.account, peerId: peerId, threadId: threadId, messageTag: tag)
         }
 
         public func sparseMessageCalendar(peerId: EnginePeer.Id, tag: EngineMessage.Tags) -> SparseMessageCalendar {

submodules/TelegramCore/Sources/TelegramEngine/Peers/TelegramEnginePeers.swift

@@ -805,6 +805,10 @@ public extension TelegramEngine {
         public func createForumChannelTopic(id: EnginePeer.Id, title: String, iconColor: Int32, iconFileId: Int64?) -> Signal<Int64, CreateForumChannelTopicError> {
             return _internal_createForumChannelTopic(account: self.account, peerId: id, title: title, iconColor: iconColor, iconFileId: iconFileId)
         }
+        
+        public func editForumChannelTopic(id: EnginePeer.Id, threadId: Int64, title: String, iconFileId: Int64?) -> Signal<Never, EditForumChannelTopicError> {
+            return _internal_editForumChannelTopic(account: self.account, peerId: id, threadId: threadId, title: title, iconFileId: iconFileId)
+        }
     }
 }
 

submodules/TelegramUI/Components/EmojiStatusComponent/Sources/EmojiStatusComponent.swift

@@ -225,8 +225,11 @@ public final class EmojiStatusComponent: Component {
                     }
                 case let .topic(title, colorIndex):
                     func generateTopicIcon(backgroundColors: [UIColor], strokeColors: [UIColor]) -> UIImage? {
-                        return generateImage(CGSize(width: 44.0, height: 44.0), rotatedContext: { size, context in
+                        return generateImage(CGSize(width: availableSize.width, height: availableSize.height), rotatedContext: { realSize, context in
-                            context.clear(CGRect(origin: .zero, size: size))
+                            context.clear(CGRect(origin: .zero, size: realSize))
+                            
+                            let size = CGSize(width: 44.0, height: 44.0)
+                            context.scaleBy(x: realSize.width / size.width, y: realSize.height / size.height)
                             
                             context.saveGState()
                             

submodules/TelegramUI/Components/ForumCreateTopicScreen/Sources/ForumCreateTopicScreen.swift

@@ -357,9 +357,9 @@ private final class ForumCreateTopicScreenComponent: CombinedComponent {
                 case .create:
                     self.title = ""
                     self.fileId = 0
-                case let .edit(topic):
+                case let .edit(info):
-                    self.title = topic.info.title
+                    self.title = info.title
-                    self.fileId = topic.info.icon ?? 0
+                    self.fileId = info.icon ?? 0
             }
             
             super.init()
@@ -670,7 +670,7 @@ private final class ForumCreateTopicScreenComponent: CombinedComponent {
 public class ForumCreateTopicScreen: ViewControllerComponentContainer {
     public enum Mode: Equatable {
         case create
-        case edit(topic: ForumChannelTopics.Item)
+        case edit(topic: EngineMessageHistoryThread.Info)
     }
     
     private var state: (String, Int64?) = ("", nil)

submodules/TelegramUI/Sources/ChatController.swift

@@ -4809,14 +4809,14 @@ public final class ChatControllerImpl: TelegramBaseController, ChatController, G
                             }
                         }
                         
-                        if let threadInfo = messageAndTopic.threadInfo, let message = message {
+                        if let threadInfo = messageAndTopic.threadInfo {
                             strongSelf.chatTitleView?.titleContent = .peer(peerView: peerView, customTitle: threadInfo.title, onlineMemberCount: onlineMemberCount, isScheduledMessages: false)
                             
                             let avatarContent: EmojiStatusComponent.Content
                             if let fileId = threadInfo.icon {
                                 avatarContent = .animation(content: .customEmoji(fileId: fileId), size: CGSize(width: 32.0, height: 32.0), placeholderColor: strongSelf.presentationData.theme.list.mediaPlaceholderColor, themeColor: nil, loopMode: .count(2))
                             } else {
-                                avatarContent = .topic(title: String(threadInfo.title.prefix(1)), colorIndex: Int(message.id.id))
+                                avatarContent = .topic(title: String(threadInfo.title.prefix(1)), colorIndex: Int(threadInfo.iconColor))
                             }
                             (strongSelf.chatInfoNavigationButton?.buttonItem.customDisplayNode as? ChatAvatarNavigationNode)?.setStatus(context: strongSelf.context, content: avatarContent)
                         } else {
@@ -9979,7 +9979,7 @@ public final class ChatControllerImpl: TelegramBaseController, ChatController, G
             
             if case let .peer(peerId) = self.chatLocation {
                 let context = self.context
-                self.keepPeerInfoScreenDataHotDisposable.set(keepPeerInfoScreenDataHot(context: context, peerId: peerId).start())
+                self.keepPeerInfoScreenDataHotDisposable.set(keepPeerInfoScreenDataHot(context: context, peerId: peerId, chatLocation: self.chatLocation, chatLocationContextHolder: self.chatLocationContextHolder).start())
                 
                 if peerId.namespace == Namespaces.Peer.CloudUser {
                     self.preloadAvatarDisposable.set((peerInfoProfilePhotosWithCache(context: context, peerId: peerId)
@@ -11140,7 +11140,11 @@ public final class ChatControllerImpl: TelegramBaseController, ChatController, G
                         }
                     }))
                 case .replyThread:
-                    break
+                    if let channel = self.presentationInterfaceState.renderedPeer?.peer as? TelegramChannel, channel.flags.contains(.isForum), case let .replyThread(message) = self.chatLocation {
+                        if let infoController = self.context.sharedContext.makePeerInfoController(context: self.context, updatedPresentationData: self.updatedPresentationData, peer: channel, mode: .forumTopic(thread: message), avatarInitiallyExpanded: false, fromChat: true, requestsContext: self.inviteRequestsContext) {
+                            self.effectiveNavigationController?.pushViewController(infoController)
+                        }
+                    }
                 case .feed:
                     break
                 }

submodules/TelegramUI/Sources/ChatQrCodeScreen.swift

@@ -564,19 +564,24 @@ final class ChatQrCodeScreen: ViewController {
     static let themeCrossfadeDelay: Double = 0.05
     
     enum Subject {
-        case peer(Peer)
+        case peer(peer: Peer, threadId: Int64?)
         case messages([Message])
         
         var fileName: String {
             switch self {
-            case let .peer(peer):
+            case let .peer(peer, threadId):
+                var result: String
                 if let addressName = peer.addressName, !addressName.isEmpty {
-                    return "t_me-\(peer.addressName ?? "")"
+                    result = "t_me-\(peer.addressName ?? "")"
                 } else if let peer = peer as? TelegramUser {
-                    return "t_me-\(peer.phone ?? "")"
+                    result = "t_me-\(peer.phone ?? "")"
                 } else {
-                    return "t_me-\(Int32.random(in: 0 ..< Int32.max))"
+                    result = "t_me-\(Int32.random(in: 0 ..< Int32.max))"
                 }
+                if let threadId = threadId {
+                    result.append("-\(threadId)")
+                }
+                return result
             case let .messages(messages):
                 if let message = messages.first, let chatPeer = message.peers[message.id.peerId] as? TelegramChannel, message.id.namespace == Namespaces.Message.Cloud, let addressName = chatPeer.addressName, !addressName.isEmpty {
                     return "t_me-\(addressName)-\(message.id.id)"
@@ -800,8 +805,8 @@ private class ChatQrCodeScreenNode: ViewControllerTracingNode, UIScrollViewDeleg
         self.wrappingScrollNode.view.canCancelContentTouches = true
                 
         switch controller.subject {
-            case let .peer(peer):
+            case let .peer(peer, threadId):
-                self.contentNode = QrContentNode(context: context, peer: peer, isStatic: false)
+                self.contentNode = QrContentNode(context: context, peer: peer, threadId: threadId, isStatic: false)
             case let .messages(messages):
                 self.contentNode = MessageContentNode(context: context, messages: messages)
         }
@@ -994,7 +999,7 @@ private class ChatQrCodeScreenNode: ViewControllerTracingNode, UIScrollViewDeleg
         let initiallySelectedEmoticon: Signal<String, NoError>
         let sharedData = self.context.sharedContext.accountManager.sharedData(keys: [ApplicationSpecificSharedDataKeys.presentationThemeSettings])
         |> take(1)
-        if case let .peer(peer) = controller.subject, peer.id != self.context.account.peerId {
+        if case let .peer(peer, _) = controller.subject, peer.id != self.context.account.peerId {
             let themeEmoticon = self.context.engine.data.get(TelegramEngine.EngineData.Item.Peer.ThemeEmoticon(id: peer.id))
             initiallySelectedEmoticon = combineLatest(themeEmoticon, sharedData)
             |> map { themeEmoticon, sharedData -> String in
@@ -1434,6 +1439,7 @@ private protocol ContentNode: ASDisplayNode {
 private class QrContentNode: ASDisplayNode, ContentNode {
     private let context: AccountContext
     private let peer: Peer
+    private let threadId: Int64?
     private let isStatic: Bool
     
     fileprivate let containerNode: ASDisplayNode
@@ -1463,9 +1469,10 @@ private class QrContentNode: ASDisplayNode, ContentNode {
         return false
     }
     
-    init(context: AccountContext, peer: Peer, isStatic: Bool = false) {
+    init(context: AccountContext, peer: Peer, threadId: Int64?, isStatic: Bool = false) {
         self.context = context
         self.peer = peer
+        self.threadId = threadId
         self.isStatic = isStatic
         
         self.containerNode = ASDisplayNode()
@@ -1506,12 +1513,15 @@ private class QrContentNode: ASDisplayNode, ContentNode {
             self.codeStaticIconNode = nil
         }
         
-        let codeText: String
+        var codeText: String
         if let addressName = peer.addressName, !addressName.isEmpty {
             codeText = "@\(peer.addressName ?? "")".uppercased()
         } else {
             codeText = peer.debugDisplayTitle.uppercased()
         }
+        if let threadId = self.threadId {
+            codeText += "/\(threadId)"
+        }
         
         self.codeTextNode = ImmediateTextNode()
         self.codeTextNode.displaysAsynchronously = false
@@ -1550,14 +1560,19 @@ private class QrContentNode: ASDisplayNode, ContentNode {
             self.addSubnode(codeAnimatedIconNode)
         }
         
-        let codeLink: String
+        var codeLink: String
         if let addressName = peer.addressName, !addressName.isEmpty {
             codeLink = "https://t.me/\(peer.addressName ?? "")"
         } else if let peer = peer as? TelegramUser {
             codeLink = "https://t.me/+\(peer.phone ?? "")"
+        } else if let _ = peer as? TelegramChannel {
+            codeLink = "https://t.me/c/\(peer.id.id._internalGetInt64Value())"
         } else {
             codeLink = ""
         }
+        if let threadId = threadId {
+            codeLink += "?topic=\(threadId)"
+        }
         
         let codeReadyPromise = ValuePromise<Bool>()
         self.codeImageNode.setSignal(qrCode(string: codeLink, color: .black, backgroundColor: nil, icon: .cutout, ecl: "Q") |> beforeNext { [weak self] size, _ in
@@ -1591,7 +1606,7 @@ private class QrContentNode: ASDisplayNode, ContentNode {
         let size = CGSize(width: 390.0, height: 844.0)
         let scale: CGFloat = 3.0
         
-        let copyNode = QrContentNode(context: self.context, peer: self.peer, isStatic: true)
+        let copyNode = QrContentNode(context: self.context, peer: self.peer, threadId: self.threadId, isStatic: true)
         
         func prepare(view: UIView, scale: CGFloat) {
             view.contentScaleFactor = scale

submodules/TelegramUI/Sources/ChatTextInputPanelNode.swift

@@ -1408,7 +1408,7 @@ class ChatTextInputPanelNode: ChatInputPanelNode, ASEditableTextNodeDelegate {
                     }
                 } else if let channel = peer as? TelegramChannel, case .group = channel.info, channel.hasPermission(.canBeAnonymous) {
                     placeholder = interfaceState.strings.Conversation_InputTextAnonymousPlaceholder
-                } else if case let .replyThread(replyThreadMessage) = interfaceState.chatLocation {
+                } else if case let .replyThread(replyThreadMessage) = interfaceState.chatLocation, !replyThreadMessage.isForumPost {
                     if replyThreadMessage.isChannelPost {
                         placeholder = interfaceState.strings.Conversation_InputTextPlaceholderComment
                     } else {

submodules/TelegramUI/Sources/PeerInfo/Panes/PeerInfoListPaneNode.swift

@@ -19,6 +19,8 @@ import ChatPresentationInterfaceState
 final class PeerInfoListPaneNode: ASDisplayNode, PeerInfoPaneNode {
     private let context: AccountContext
     private let peerId: PeerId
+    private let chatLocation: ChatLocation
+    private let chatLocationContextHolder: Atomic<ChatLocationContextHolder?>
     private let chatControllerInteraction: ChatControllerInteraction
     
     weak var parentController: ViewController?
@@ -61,16 +63,18 @@ final class PeerInfoListPaneNode: ASDisplayNode, PeerInfoPaneNode {
         return 0.0
     }
     
-    init(context: AccountContext, updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)? = nil, chatControllerInteraction: ChatControllerInteraction, peerId: PeerId, tagMask: MessageTags) {
+    init(context: AccountContext, updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)? = nil, chatControllerInteraction: ChatControllerInteraction, peerId: PeerId, chatLocation: ChatLocation, chatLocationContextHolder: Atomic<ChatLocationContextHolder?>, tagMask: MessageTags) {
         self.context = context
         self.peerId = peerId
+        self.chatLocation = chatLocation
+        self.chatLocationContextHolder = chatLocationContextHolder
+        
         self.chatControllerInteraction = chatControllerInteraction
         
         self.selectedMessages = chatControllerInteraction.selectionState.flatMap { $0.selectedIds }
         self.selectedMessagesPromise.set(.single(self.selectedMessages))
         
-        let chatLocationContextHolder = Atomic<ChatLocationContextHolder?>(value: nil)
+        self.listNode = ChatHistoryListNode(context: context, updatedPresentationData: updatedPresentationData ?? (context.sharedContext.currentPresentationData.with({ $0 }), context.sharedContext.presentationData), chatLocation: chatLocation, chatLocationContextHolder: chatLocationContextHolder, tagMask: tagMask, subject: nil, controllerInteraction: chatControllerInteraction, selectedMessages: self.selectedMessagesPromise.get(), mode: .list(search: false, reversed: false, displayHeaders: .allButLast, hintLinks: tagMask == .webPage, isGlobalSearch: false))
-        self.listNode = ChatHistoryListNode(context: context, updatedPresentationData: updatedPresentationData ?? (context.sharedContext.currentPresentationData.with({ $0 }), context.sharedContext.presentationData), chatLocation: .peer(id: peerId), chatLocationContextHolder: chatLocationContextHolder, tagMask: tagMask, subject: nil, controllerInteraction: chatControllerInteraction, selectedMessages: self.selectedMessagesPromise.get(), mode: .list(search: false, reversed: false, displayHeaders: .allButLast, hintLinks: tagMask == .webPage, isGlobalSearch: false))
         self.listNode.clipsToBounds = true
         self.listNode.defaultToSynchronousTransactionWhileScrolling = true
         self.listNode.scroller.bounces = false

submodules/TelegramUI/Sources/PeerInfo/Panes/PeerInfoVisualMediaPaneNode.swift

@@ -1594,6 +1594,8 @@ final class PeerInfoVisualMediaPaneNode: ASDisplayNode, PeerInfoPaneNode, UIScro
     
     private let context: AccountContext
     private let peerId: PeerId
+    private let chatLocation: ChatLocation
+    private let chatLocationContextHolder: Atomic<ChatLocationContextHolder?>
     private let chatControllerInteraction: ChatControllerInteraction
     private(set) var contentType: ContentType
     private var contentTypePromise: ValuePromise<ContentType>
@@ -1657,9 +1659,11 @@ final class PeerInfoVisualMediaPaneNode: ASDisplayNode, PeerInfoPaneNode, UIScro
     private var presentationData: PresentationData
     private var presentationDataDisposable: Disposable?
     
-    init(context: AccountContext, chatControllerInteraction: ChatControllerInteraction, peerId: PeerId, contentType: ContentType, captureProtected: Bool) {
+    init(context: AccountContext, chatControllerInteraction: ChatControllerInteraction, peerId: PeerId, chatLocation: ChatLocation, chatLocationContextHolder: Atomic<ChatLocationContextHolder?>, contentType: ContentType, captureProtected: Bool) {
         self.context = context
         self.peerId = peerId
+        self.chatLocation = chatLocation
+        self.chatLocationContextHolder = chatLocationContextHolder
         self.chatControllerInteraction = chatControllerInteraction
         self.contentType = contentType
         self.contentTypePromise = ValuePromise<ContentType>(contentType)
@@ -1720,13 +1724,22 @@ final class PeerInfoVisualMediaPaneNode: ASDisplayNode, PeerInfoPaneNode, UIScro
             captureProtected: captureProtected
         )
         
-        self.listSource = self.context.engine.messages.sparseMessageList(peerId: self.peerId, tag: tagMaskForType(self.contentType))
+        var threadId: Int64?
+        if case let .replyThread(message) = chatLocation {
+            threadId = Int64(message.messageId.id)
+        }
+
+        self.listSource = self.context.engine.messages.sparseMessageList(peerId: self.peerId, threadId: threadId, tag: tagMaskForType(self.contentType))
+        if threadId == nil {
             switch contentType {
             case .photoOrVideo, .photo, .video:
                 self.calendarSource = self.context.engine.messages.sparseMessageCalendar(peerId: self.peerId, tag: tagMaskForType(self.contentType))
             default:
                 self.calendarSource = nil
             }
+        } else {
+            self.calendarSource = nil
+        }
         
         super.init()
 
@@ -2173,7 +2186,12 @@ final class PeerInfoVisualMediaPaneNode: ASDisplayNode, PeerInfoPaneNode, UIScro
 
         self.itemGrid.hideScrollingArea()
         
-        self.listSource = self.context.engine.messages.sparseMessageList(peerId: self.peerId, tag: tagMaskForType(self.contentType))
+        var threadId: Int64?
+        if case let .replyThread(message) = chatLocation {
+            threadId = Int64(message.messageId.id)
+        }
+
+        self.listSource = self.context.engine.messages.sparseMessageList(peerId: self.peerId, threadId: threadId, tag: tagMaskForType(self.contentType))
         self.isRequestingView = false
         self.requestHistoryAroundVisiblePosition(synchronous: true, reloadAtTop: true)
     }

submodules/TelegramUI/Sources/PeerInfo/PeerInfoData.swift

@@ -187,6 +187,7 @@ final class PeerInfoScreenData {
     let invitations: PeerExportedInvitationsState?
     let requests: PeerInvitationImportersState?
     let requestsContext: PeerInvitationImportersContext?
+    let threadInfo: EngineMessageHistoryThread.Info?
     
     init(
         peer: Peer?,
@@ -204,7 +205,8 @@ final class PeerInfoScreenData {
         globalSettings: TelegramGlobalSettings?,
         invitations: PeerExportedInvitationsState?,
         requests: PeerInvitationImportersState?,
-        requestsContext: PeerInvitationImportersContext?
+        requestsContext: PeerInvitationImportersContext?,
+        threadInfo: EngineMessageHistoryThread.Info?
     ) {
         self.peer = peer
         self.chatPeer = chatPeer
@@ -222,6 +224,7 @@ final class PeerInfoScreenData {
         self.invitations = invitations
         self.requests = requests
         self.requestsContext = requestsContext
+        self.threadInfo = threadInfo
     }
 }
 
@@ -240,7 +243,7 @@ private enum PeerInfoScreenInputData: Equatable {
     case group(groupId: PeerId)
 }
 
-private func peerInfoAvailableMediaPanes(context: AccountContext, peerId: PeerId) -> Signal<[PeerInfoPaneKey]?, NoError> {
+private func peerInfoAvailableMediaPanes(context: AccountContext, peerId: PeerId, chatLocation: ChatLocation, chatLocationContextHolder: Atomic<ChatLocationContextHolder?>) -> Signal<[PeerInfoPaneKey]?, NoError> {
     let tags: [(MessageTags, PeerInfoPaneKey)] = [
         (.photoOrVideo, .media),
         (.file, .files),
@@ -257,7 +260,8 @@ private func peerInfoAvailableMediaPanes(context: AccountContext, peerId: PeerId
     let loadedOnce = Atomic<Bool>(value: false)
     return combineLatest(queue: .mainQueue(), tags.map { tagAndKey -> Signal<(PeerInfoPaneKey, PaneState), NoError> in
         let (tag, key) = tagAndKey
-        return context.account.viewTracker.aroundMessageHistoryViewForLocation(.peer(peerId: peerId), index: .upperBound, anchorIndex: .upperBound, count: 20, clipHoles: false, fixedCombinedReadStates: nil, tagMask: tag)
+        let location = context.chatLocationInput(for: chatLocation, contextHolder: chatLocationContextHolder)
+        return context.account.viewTracker.aroundMessageHistoryViewForLocation(location, index: .upperBound, anchorIndex: .upperBound, count: 20, clipHoles: false, fixedCombinedReadStates: nil, tagMask: tag)
         |> map { (view, _, _) -> (PeerInfoPaneKey, PaneState) in
             if view.entries.isEmpty {
                 if view.isLoading {
@@ -353,7 +357,7 @@ private func peerInfoScreenInputData(context: AccountContext, peerId: EnginePeer
     |> distinctUntilChanged
 }
 
-func keepPeerInfoScreenDataHot(context: AccountContext, peerId: PeerId) -> Signal<Never, NoError> {
+func keepPeerInfoScreenDataHot(context: AccountContext, peerId: PeerId, chatLocation: ChatLocation, chatLocationContextHolder: Atomic<ChatLocationContextHolder?>) -> Signal<Never, NoError> {
     return peerInfoScreenInputData(context: context, peerId: peerId, isSettings: false)
     |> mapToSignal { inputData -> Signal<Never, NoError> in
         switch inputData {
@@ -361,7 +365,7 @@ func keepPeerInfoScreenDataHot(context: AccountContext, peerId: PeerId) -> Signa
             return .complete()
         case .user, .channel, .group:
             return combineLatest(
-                context.peerChannelMemberCategoriesContextsManager.profileData(postbox: context.account.postbox, network: context.account.network, peerId: peerId, customData: peerInfoAvailableMediaPanes(context: context, peerId: peerId) |> ignoreValues),
+                context.peerChannelMemberCategoriesContextsManager.profileData(postbox: context.account.postbox, network: context.account.network, peerId: peerId, customData: peerInfoAvailableMediaPanes(context: context, peerId: peerId, chatLocation: chatLocation, chatLocationContextHolder: chatLocationContextHolder) |> ignoreValues),
                 context.peerChannelMemberCategoriesContextsManager.profilePhotos(postbox: context.account.postbox, network: context.account.network, peerId: peerId, fetch: peerInfoProfilePhotos(context: context, peerId: peerId)) |> ignoreValues
             )
             |> ignoreValues
@@ -472,12 +476,13 @@ func peerInfoScreenSettingsData(context: AccountContext, peerId: EnginePeer.Id,
             globalSettings: globalSettings,
             invitations: nil,
             requests: nil,
-            requestsContext: nil
+            requestsContext: nil,
+            threadInfo: nil
         )
     }
 }
 
-func peerInfoScreenData(context: AccountContext, peerId: PeerId, strings: PresentationStrings, dateTimeFormat: PresentationDateTimeFormat, isSettings: Bool, hintGroupInCommon: PeerId?, existingRequestsContext: PeerInvitationImportersContext?) -> Signal<PeerInfoScreenData, NoError> {
+func peerInfoScreenData(context: AccountContext, peerId: PeerId, strings: PresentationStrings, dateTimeFormat: PresentationDateTimeFormat, isSettings: Bool, hintGroupInCommon: PeerId?, existingRequestsContext: PeerInvitationImportersContext?, chatLocation: ChatLocation, chatLocationContextHolder: Atomic<ChatLocationContextHolder?>) -> Signal<PeerInfoScreenData, NoError> {
     return peerInfoScreenInputData(context: context, peerId: peerId, isSettings: isSettings)
     |> mapToSignal { inputData -> Signal<PeerInfoScreenData, NoError> in
         switch inputData {
@@ -498,7 +503,8 @@ func peerInfoScreenData(context: AccountContext, peerId: PeerId, strings: Presen
                 globalSettings: nil,
                 invitations: nil,
                 requests: nil,
-                requestsContext: nil
+                requestsContext: nil,
+                threadInfo: nil
             ))
         case let .user(userPeerId, secretChatId, kind):
             let groupsInCommon: GroupsInCommonContext?
@@ -599,7 +605,7 @@ func peerInfoScreenData(context: AccountContext, peerId: PeerId, strings: Presen
             
             return combineLatest(
                 context.account.viewTracker.peerView(peerId, updateData: true),
-                peerInfoAvailableMediaPanes(context: context, peerId: peerId),
+                peerInfoAvailableMediaPanes(context: context, peerId: peerId, chatLocation: chatLocation, chatLocationContextHolder: chatLocationContextHolder),
                 context.engine.data.subscribe(TelegramEngine.EngineData.Item.NotificationSettings.Global()),
                 secretChatKeyFingerprint,
                 status
@@ -628,7 +634,8 @@ func peerInfoScreenData(context: AccountContext, peerId: PeerId, strings: Presen
                     globalSettings: nil,
                     invitations: nil,
                     requests: nil,
-                    requestsContext: nil
+                    requestsContext: nil,
+                    threadInfo: nil
                 )
             }
         case .channel:
@@ -653,7 +660,7 @@ func peerInfoScreenData(context: AccountContext, peerId: PeerId, strings: Presen
             
             return combineLatest(
                 context.account.viewTracker.peerView(peerId, updateData: true),
-                peerInfoAvailableMediaPanes(context: context, peerId: peerId),
+                peerInfoAvailableMediaPanes(context: context, peerId: peerId, chatLocation: chatLocation, chatLocationContextHolder: chatLocationContextHolder),
                 context.engine.data.subscribe(TelegramEngine.EngineData.Item.NotificationSettings.Global()),
                 status,
                 invitationsContextPromise.get(),
@@ -703,7 +710,8 @@ func peerInfoScreenData(context: AccountContext, peerId: PeerId, strings: Presen
                     globalSettings: nil,
                     invitations: invitations,
                     requests: requests,
-                    requestsContext: currentRequestsContext
+                    requestsContext: currentRequestsContext,
+                    threadInfo: nil
                 )
             }
         case let .group(groupId):
@@ -785,9 +793,10 @@ func peerInfoScreenData(context: AccountContext, peerId: PeerId, strings: Presen
             }
             |> distinctUntilChanged
             
+            let membersData: Signal<PeerInfoMembersData?, NoError>
+            if case .peer = chatLocation {
                 let membersContext = PeerInfoMembersContext(context: context, peerId: groupId)
-            
+                membersData = combineLatest(membersContext.state, context.account.viewTracker.peerView(groupId, updateData: false))
-            let membersData: Signal<PeerInfoMembersData?, NoError> = combineLatest(membersContext.state, context.account.viewTracker.peerView(groupId, updateData: false))
                 |> map { state, view -> PeerInfoMembersData? in
                     if state.members.count > 5 {
                         return .longList(membersContext)
@@ -796,6 +805,9 @@ func peerInfoScreenData(context: AccountContext, peerId: PeerId, strings: Presen
                     }
                 }
                 |> distinctUntilChanged
+            } else {
+                membersData = .single(nil)
+            }
             
             let invitationsContextPromise = Promise<PeerExportedInvitationsContext?>(nil)
             let invitationsStatePromise = Promise<PeerExportedInvitationsState?>(nil)
@@ -803,27 +815,40 @@ func peerInfoScreenData(context: AccountContext, peerId: PeerId, strings: Presen
             let requestsContextPromise = Promise<PeerInvitationImportersContext?>(nil)
             let requestsStatePromise = Promise<PeerInvitationImportersState?>(nil)
             
+            let threadInfo: Signal<EngineMessageHistoryThread.Info?, NoError>
+            if case let .replyThread(message) = chatLocation {
+                let threadId = Int64(message.messageId.id)
+                let viewKey: PostboxViewKey = .messageHistoryThreadInfo(peerId: peerId, threadId: threadId)
+                threadInfo = context.account.postbox.combinedView(keys: [viewKey])
+                |> map { views -> EngineMessageHistoryThread.Info? in
+                    guard let view = views.views[viewKey] as? MessageHistoryThreadInfoView else {
+                        return nil
+                    }
+                    return view.info?.get(MessageHistoryThreadData.self)?.info
+                }
+            } else {
+                threadInfo = .single(nil)
+            }
+            
             return combineLatest(queue: .mainQueue(),
                 context.account.viewTracker.peerView(groupId, updateData: true),
-                peerInfoAvailableMediaPanes(context: context, peerId: groupId),
+                peerInfoAvailableMediaPanes(context: context, peerId: groupId, chatLocation: chatLocation, chatLocationContextHolder: chatLocationContextHolder),
                 context.engine.data.subscribe(TelegramEngine.EngineData.Item.NotificationSettings.Global()),
                 status,
                 membersData,
                 invitationsContextPromise.get(),
                 invitationsStatePromise.get(),
                 requestsContextPromise.get(),
-                requestsStatePromise.get()
+                requestsStatePromise.get(),
+                threadInfo
             )
-            |> map { peerView, availablePanes, globalNotificationSettings, status, membersData, currentInvitationsContext, invitations, currentRequestsContext, requests -> PeerInfoScreenData in
+            |> map { peerView, availablePanes, globalNotificationSettings, status, membersData, currentInvitationsContext, invitations, currentRequestsContext, requests, threadInfo -> PeerInfoScreenData in
                 var discussionPeer: Peer?
                 if case let .known(maybeLinkedDiscussionPeerId) = (peerView.cachedData as? CachedChannelData)?.linkedDiscussionPeerId, let linkedDiscussionPeerId = maybeLinkedDiscussionPeerId, let peer = peerView.peers[linkedDiscussionPeerId] {
                     discussionPeer = peer
                 }
                 
                 var availablePanes = availablePanes
-                if let channel = peerView.peers[peerView.peerId] as? TelegramChannel, channel.flags.contains(.isForum) {
-                    availablePanes?.removeAll()
-                }
                 if let membersData = membersData, case .longList = membersData {
                     if availablePanes != nil {
                         availablePanes?.insert(.members, at: 0)
@@ -874,7 +899,8 @@ func peerInfoScreenData(context: AccountContext, peerId: PeerId, strings: Presen
                     globalSettings: nil,
                     invitations: invitations,
                     requests: requests,
-                    requestsContext: currentRequestsContext
+                    requestsContext: currentRequestsContext,
+                    threadInfo: threadInfo
                 )
             }
         }
@@ -1013,7 +1039,7 @@ func peerInfoHeaderButtonIsHiddenWhileExpanded(buttonKey: PeerInfoHeaderButtonKe
     return hiddenWhileExpanded
 }
 
-func peerInfoHeaderButtons(peer: Peer?, cachedData: CachedPeerData?, isOpenedFromChat: Bool, isExpanded: Bool, videoCallsEnabled: Bool, isSecretChat: Bool, isContact: Bool) -> [PeerInfoHeaderButtonKey] {
+func peerInfoHeaderButtons(peer: Peer?, cachedData: CachedPeerData?, isOpenedFromChat: Bool, isExpanded: Bool, videoCallsEnabled: Bool, isSecretChat: Bool, isContact: Bool, threadInfo: EngineMessageHistoryThread.Info?) -> [PeerInfoHeaderButtonKey] {
     var result: [PeerInfoHeaderButtonKey] = []
     if let user = peer as? TelegramUser {
         if !isOpenedFromChat {
@@ -1050,6 +1076,10 @@ func peerInfoHeaderButtons(peer: Peer?, cachedData: CachedPeerData?, isOpenedFro
             result.append(.more)
         }
     } else if let channel = peer as? TelegramChannel {
+        if let _ = threadInfo {
+            result.append(.mute)
+            result.append(.search)
+        } else {
             let hasVoiceChat = channel.flags.contains(.hasVoiceChat)
             let canStartVoiceChat = !hasVoiceChat && (channel.flags.contains(.isCreator) || channel.hasPermission(.manageCalls))
             let canManage = channel.flags.contains(.isCreator) || channel.adminRights != nil
@@ -1115,6 +1145,7 @@ func peerInfoHeaderButtons(peer: Peer?, cachedData: CachedPeerData?, isOpenedFro
                     result.append(.more)
                 }
             }
+        }
     } else if let group = peer as? TelegramGroup {
         let hasVoiceChat = group.flags.contains(.hasVoiceChat)
         let canStartVoiceChat: Bool

submodules/TelegramUI/Sources/PeerInfo/PeerInfoHeaderNode.swift

@@ -308,6 +308,7 @@ final class PeerInfoAvatarTransformContainerNode: ASDisplayNode {
     
     let avatarNode: AvatarNode
     fileprivate var videoNode: UniversalVideoNode?
+    fileprivate var iconView: ComponentView<Empty>?
     private var videoContent: NativeVideoContent?
     private var videoStartTimestamp: Double?
     
@@ -380,7 +381,7 @@ final class PeerInfoAvatarTransformContainerNode: ASDisplayNode {
     }
         
     var removedPhotoResourceIds = Set<String>()
-    func update(peer: Peer?, item: PeerInfoAvatarListItem?, theme: PresentationTheme, avatarSize: CGFloat, isExpanded: Bool, isSettings: Bool) {
+    func update(peer: Peer?, threadInfo: EngineMessageHistoryThread.Info?, item: PeerInfoAvatarListItem?, theme: PresentationTheme, avatarSize: CGFloat, isExpanded: Bool, isSettings: Bool) {
         if let peer = peer {
             let previousItem = self.item
             var item = item
@@ -410,6 +411,43 @@ final class PeerInfoAvatarTransformContainerNode: ASDisplayNode {
             
             self.avatarNode.setPeer(context: self.context, theme: theme, peer: EnginePeer(peer), overrideImage: overrideImage, clipStyle: .none, synchronousLoad: self.isFirstAvatarLoading, displayDimensions: CGSize(width: avatarSize, height: avatarSize), storeUnrounded: true)
             
+            if let threadInfo = threadInfo {
+                self.avatarNode.isHidden = true
+                
+                let iconView: ComponentView<Empty>
+                if let current = self.iconView {
+                    iconView = current
+                } else {
+                    iconView = ComponentView()
+                    self.iconView = iconView
+                }
+                let content: EmojiStatusComponent.Content
+                if let iconFileId = threadInfo.icon {
+                    content = .animation(content: .customEmoji(fileId: iconFileId), size: CGSize(width: avatarSize, height: avatarSize), placeholderColor: theme.list.mediaPlaceholderColor, themeColor: nil, loopMode: .forever)
+                } else {
+                    content = .topic(title: String(threadInfo.title.prefix(1)), colorIndex: Int(threadInfo.iconColor))
+                }
+                let _ = iconView.update(
+                    transition: .immediate,
+                    component: AnyComponent(EmojiStatusComponent(
+                        context: self.context,
+                        animationCache: self.context.animationCache,
+                        animationRenderer: self.context.animationRenderer,
+                        content: content,
+                        isVisibleForAnimations: true,
+                        action: nil
+                    )),
+                    environment: {},
+                    containerSize: CGSize(width: avatarSize, height: avatarSize)
+                )
+                if let iconComponentView = iconView.view {
+                    if iconComponentView.superview == nil {
+                        self.avatarNode.view.superview?.addSubview(iconComponentView)
+                    }
+                    iconComponentView.frame = CGRect(origin: CGPoint(), size: CGSize(width: avatarSize, height: avatarSize))
+                }
+            }
+            
             let avatarCornerRadius: CGFloat
             if let channel = peer as? TelegramChannel, channel.flags.contains(.isForum) {
                 avatarCornerRadius = floor(avatarSize * 0.25)
@@ -825,7 +863,7 @@ final class PeerInfoAvatarListNode: ASDisplayNode {
     
     let isReady = Promise<Bool>()
    
-    var arguments: (Peer?, PresentationTheme, CGFloat, Bool)?
+    var arguments: (Peer?, EngineMessageHistoryThread.Info?, PresentationTheme, CGFloat, Bool)?
     var item: PeerInfoAvatarListItem?
     
     var itemsUpdated: (([PeerInfoAvatarListItem]) -> Void)?
@@ -884,14 +922,14 @@ final class PeerInfoAvatarListNode: ASDisplayNode {
             if let strongSelf = self {
                 strongSelf.item = items.first
                 strongSelf.itemsUpdated?(items)
-                if let (peer, theme, avatarSize, isExpanded) = strongSelf.arguments {
+                if let (peer, threadInfo, theme, avatarSize, isExpanded) = strongSelf.arguments {
-                    strongSelf.avatarContainerNode.update(peer: peer, item: strongSelf.item, theme: theme, avatarSize: avatarSize, isExpanded: isExpanded, isSettings: strongSelf.isSettings)
+                    strongSelf.avatarContainerNode.update(peer: peer, threadInfo: threadInfo, item: strongSelf.item, theme: theme, avatarSize: avatarSize, isExpanded: isExpanded, isSettings: strongSelf.isSettings)
                 }
             }
         }
 
         self.pinchSourceNode.activate = { [weak self] sourceNode in
-            guard let strongSelf = self, let (_, _, _, isExpanded) = strongSelf.arguments, isExpanded else {
+            guard let strongSelf = self, let (_, _, _, _, isExpanded) = strongSelf.arguments, isExpanded else {
                 return
             }
             let pinchController = PinchController(sourceNode: sourceNode, getContentAreaInScreenSpace: {
@@ -910,11 +948,11 @@ final class PeerInfoAvatarListNode: ASDisplayNode {
         }
     }
     
-    func update(size: CGSize, avatarSize: CGFloat, isExpanded: Bool, peer: Peer?, theme: PresentationTheme, transition: ContainedViewLayoutTransition) {
+    func update(size: CGSize, avatarSize: CGFloat, isExpanded: Bool, peer: Peer?, threadInfo: EngineMessageHistoryThread.Info?, theme: PresentationTheme, transition: ContainedViewLayoutTransition) {
-        self.arguments = (peer, theme, avatarSize, isExpanded)
+        self.arguments = (peer, threadInfo, theme, avatarSize, isExpanded)
         self.pinchSourceNode.update(size: size, transition: transition)
         self.pinchSourceNode.frame = CGRect(origin: CGPoint(), size: size)
-        self.avatarContainerNode.update(peer: peer, item: self.item, theme: theme, avatarSize: avatarSize, isExpanded: isExpanded, isSettings: self.isSettings)
+        self.avatarContainerNode.update(peer: peer, threadInfo: threadInfo, item: self.item, theme: theme, avatarSize: avatarSize, isExpanded: isExpanded, isSettings: self.isSettings)
     }
     
     override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
@@ -1996,6 +2034,7 @@ final class PeerInfoHeaderNode: ASDisplayNode {
     private let isOpenedFromChat: Bool
     private let isSettings: Bool
     private let videoCallsEnabled: Bool
+    private let forumTopicThreadId: Int64?
     
     private(set) var isAvatarExpanded: Bool
     var skipCollapseCompletion = false
@@ -2056,12 +2095,13 @@ final class PeerInfoHeaderNode: ASDisplayNode {
     var emojiStatusPackDisposable = MetaDisposable()
     var emojiStatusFileAndPackTitle = Promise<(TelegramMediaFile, LoadedStickerPack)?>()
     
-    init(context: AccountContext, avatarInitiallyExpanded: Bool, isOpenedFromChat: Bool, isMediaOnly: Bool, isSettings: Bool) {
+    init(context: AccountContext, avatarInitiallyExpanded: Bool, isOpenedFromChat: Bool, isMediaOnly: Bool, isSettings: Bool, forumTopicThreadId: Int64?) {
         self.context = context
         self.isAvatarExpanded = avatarInitiallyExpanded
         self.isOpenedFromChat = isOpenedFromChat
         self.isSettings = isSettings
         self.videoCallsEnabled = true
+        self.forumTopicThreadId = forumTopicThreadId
         
         self.avatarListNode = PeerInfoAvatarListNode(context: context, readyWhenGalleryLoads: avatarInitiallyExpanded, isSettings: isSettings)
         
@@ -2304,7 +2344,7 @@ final class PeerInfoHeaderNode: ASDisplayNode {
     private var currentCredibilityIcon: CredibilityIcon?
     
     private var currentPanelStatusData: PeerInfoStatusData?
-    func update(width: CGFloat, containerHeight: CGFloat, containerInset: CGFloat, statusBarHeight: CGFloat, navigationHeight: CGFloat, isModalOverlay: Bool, isMediaOnly: Bool, contentOffset: CGFloat, paneContainerY: CGFloat, presentationData: PresentationData, peer: Peer?, cachedData: CachedPeerData?, notificationSettings: TelegramPeerNotificationSettings?, statusData: PeerInfoStatusData?, panelStatusData: (PeerInfoStatusData?, PeerInfoStatusData?, CGFloat?), isSecretChat: Bool, isContact: Bool, isSettings: Bool, state: PeerInfoState, metrics: LayoutMetrics, transition: ContainedViewLayoutTransition, additive: Bool) -> CGFloat {
+    func update(width: CGFloat, containerHeight: CGFloat, containerInset: CGFloat, statusBarHeight: CGFloat, navigationHeight: CGFloat, isModalOverlay: Bool, isMediaOnly: Bool, contentOffset: CGFloat, paneContainerY: CGFloat, presentationData: PresentationData, peer: Peer?, cachedData: CachedPeerData?, threadInfo: EngineMessageHistoryThread.Info?, notificationSettings: TelegramPeerNotificationSettings?, statusData: PeerInfoStatusData?, panelStatusData: (PeerInfoStatusData?, PeerInfoStatusData?, CGFloat?), isSecretChat: Bool, isContact: Bool, isSettings: Bool, state: PeerInfoState, metrics: LayoutMetrics, transition: ContainedViewLayoutTransition, additive: Bool) -> CGFloat {
         self.state = state
         self.peer = peer
         self.avatarListNode.listContainerNode.peer = peer
@@ -2527,7 +2567,7 @@ final class PeerInfoHeaderNode: ASDisplayNode {
         let expandedAvatarListHeight = min(width, containerHeight - expandedAvatarControlsHeight)
         let expandedAvatarListSize = CGSize(width: width, height: expandedAvatarListHeight)
         
-        let buttonKeys: [PeerInfoHeaderButtonKey] = self.isSettings ? [] : peerInfoHeaderButtons(peer: peer, cachedData: cachedData, isOpenedFromChat: self.isOpenedFromChat, isExpanded: true, videoCallsEnabled: width > 320.0 && self.videoCallsEnabled, isSecretChat: isSecretChat, isContact: isContact)
+        let buttonKeys: [PeerInfoHeaderButtonKey] = self.isSettings ? [] : peerInfoHeaderButtons(peer: peer, cachedData: cachedData, isOpenedFromChat: self.isOpenedFromChat, isExpanded: true, videoCallsEnabled: width > 320.0 && self.videoCallsEnabled, isSecretChat: isSecretChat, isContact: isContact, threadInfo: threadInfo)
         
         var isPremium = false
         var isVerified = false
@@ -2551,6 +2591,8 @@ final class PeerInfoHeaderNode: ASDisplayNode {
                 title = presentationData.strings.Conversation_SavedMessages
             } else if peer.id == self.context.account.peerId && !self.isSettings {
                 title = presentationData.strings.DialogList_Replies
+            } else if let threadInfo = threadInfo {
+                title = threadInfo.title
             } else {
                 title = EnginePeer(peer).displayTitle(strings: presentationData.strings, displayOrder: presentationData.nameDisplayOrder)
             }
@@ -2577,6 +2619,34 @@ final class PeerInfoHeaderNode: ASDisplayNode {
                 smallSubtitleString = NSAttributedString(string: subtitle, font: Font.regular(15.0), textColor: UIColor(rgb: 0xffffff, alpha: 0.7))
                 subtitleString = NSAttributedString(string: subtitle, font: Font.regular(17.0), textColor: presentationData.theme.list.itemSecondaryTextColor)
                 usernameString = NSAttributedString(string: "", font: Font.regular(15.0), textColor: presentationData.theme.list.itemSecondaryTextColor)
+            } else if let _ = threadInfo {
+                let subtitleColor: UIColor = presentationData.theme.list.itemSecondaryTextColor
+                
+                //TODO:localize
+                var statusText = "in "
+                if let addressName = peer.addressName {
+                    statusText += "@\(addressName)"
+                } else {
+                    statusText += peer.debugDisplayTitle
+                }
+                
+                smallSubtitleString = NSAttributedString(string: statusText, font: Font.regular(15.0), textColor: UIColor(rgb: 0xffffff, alpha: 0.7))
+                subtitleString = NSAttributedString(string: statusText, font: Font.regular(17.0), textColor: subtitleColor)
+                usernameString = NSAttributedString(string: "", font: Font.regular(15.0), textColor: presentationData.theme.list.itemSecondaryTextColor)
+
+                let (maybePanelStatusData, maybeNextPanelStatusData, _) = panelStatusData
+                if let panelStatusData = maybePanelStatusData {
+                    let subtitleColor: UIColor
+                    if panelStatusData.isActivity {
+                        subtitleColor = presentationData.theme.list.itemAccentColor
+                    } else {
+                        subtitleColor = presentationData.theme.list.itemSecondaryTextColor
+                    }
+                    panelSubtitleString = NSAttributedString(string: panelStatusData.text, font: Font.regular(17.0), textColor: subtitleColor)
+                }
+                if let nextPanelStatusData = maybeNextPanelStatusData {
+                    nextPanelSubtitleString = NSAttributedString(string: nextPanelStatusData.text, font: Font.regular(17.0), textColor: presentationData.theme.list.itemSecondaryTextColor)
+                }
             } else if let statusData = statusData {
                 let subtitleColor: UIColor
                 if statusData.isActivity {
@@ -2839,7 +2909,7 @@ final class PeerInfoHeaderNode: ASDisplayNode {
             })
         }
         
-        self.avatarListNode.update(size: CGSize(), avatarSize: avatarSize, isExpanded: self.isAvatarExpanded, peer: peer, theme: presentationData.theme, transition: transition)
+        self.avatarListNode.update(size: CGSize(), avatarSize: avatarSize, isExpanded: self.isAvatarExpanded, peer: peer, threadInfo: threadInfo, theme: presentationData.theme, transition: transition)
         self.editingContentNode.avatarNode.update(peer: peer, item: self.avatarListNode.item, updatingAvatar: state.updatingAvatar, uploadProgress: state.avatarUploadProgress, theme: presentationData.theme, avatarSize: avatarSize, isEditing: state.isEditing)
         self.avatarOverlayNode.update(peer: peer, item: self.avatarListNode.item, updatingAvatar: state.updatingAvatar, uploadProgress: state.avatarUploadProgress, theme: presentationData.theme, avatarSize: avatarSize, isEditing: state.isEditing)
         if additive {

submodules/TelegramUI/Sources/PeerInfo/PeerInfoPaneContainerNode.swift

@@ -386,6 +386,8 @@ private final class PeerInfoPendingPane {
         openAddMemberAction: @escaping () -> Void,
         requestPerformPeerMemberAction: @escaping (PeerInfoMember, PeerMembersListAction) -> Void,
         peerId: PeerId,
+        chatLocation: ChatLocation,
+        chatLocationContextHolder: Atomic<ChatLocationContextHolder?>,
         key: PeerInfoPaneKey,
         hasBecomeReady: @escaping (PeerInfoPaneKey) -> Void,
         parentController: ViewController?,
@@ -396,7 +398,7 @@ private final class PeerInfoPendingPane {
         let paneNode: PeerInfoPaneNode
         switch key {
         case .media:
-            let visualPaneNode = PeerInfoVisualMediaPaneNode(context: context, chatControllerInteraction: chatControllerInteraction, peerId: peerId, contentType: .photoOrVideo, captureProtected: captureProtected)
+            let visualPaneNode = PeerInfoVisualMediaPaneNode(context: context, chatControllerInteraction: chatControllerInteraction, peerId: peerId, chatLocation: chatLocation, chatLocationContextHolder: chatLocationContextHolder, contentType: .photoOrVideo, captureProtected: captureProtected)
             paneNode = visualPaneNode
             visualPaneNode.openCurrentDate = {
                 openMediaCalendar()
@@ -405,21 +407,19 @@ private final class PeerInfoPendingPane {
                 paneDidScroll()
             }
         case .files:
-            let visualPaneNode = PeerInfoVisualMediaPaneNode(context: context, chatControllerInteraction: chatControllerInteraction, peerId: peerId, contentType: .files, captureProtected: captureProtected)
+            let visualPaneNode = PeerInfoVisualMediaPaneNode(context: context, chatControllerInteraction: chatControllerInteraction, peerId: peerId, chatLocation: chatLocation, chatLocationContextHolder: chatLocationContextHolder, contentType: .files, captureProtected: captureProtected)
             paneNode = visualPaneNode
             //paneNode = PeerInfoListPaneNode(context: context, updatedPresentationData: updatedPresentationData, chatControllerInteraction: chatControllerInteraction, peerId: peerId, tagMask: .file)
         case .links:
-            paneNode = PeerInfoListPaneNode(context: context, updatedPresentationData: updatedPresentationData, chatControllerInteraction: chatControllerInteraction, peerId: peerId, tagMask: .webPage)
+            paneNode = PeerInfoListPaneNode(context: context, updatedPresentationData: updatedPresentationData, chatControllerInteraction: chatControllerInteraction, peerId: peerId, chatLocation: chatLocation, chatLocationContextHolder: chatLocationContextHolder, tagMask: .webPage)
         case .voice:
-            let visualPaneNode = PeerInfoVisualMediaPaneNode(context: context, chatControllerInteraction: chatControllerInteraction, peerId: peerId, contentType: .voiceAndVideoMessages, captureProtected: captureProtected)
+            let visualPaneNode = PeerInfoVisualMediaPaneNode(context: context, chatControllerInteraction: chatControllerInteraction, peerId: peerId, chatLocation: chatLocation, chatLocationContextHolder: chatLocationContextHolder, contentType: .voiceAndVideoMessages, captureProtected: captureProtected)
             paneNode = visualPaneNode
-            //paneNode = PeerInfoListPaneNode(context: context, updatedPresentationData: updatedPresentationData, chatControllerInteraction: chatControllerInteraction, peerId: peerId, tagMask: .voiceOrInstantVideo)
         case .music:
-            let visualPaneNode = PeerInfoVisualMediaPaneNode(context: context, chatControllerInteraction: chatControllerInteraction, peerId: peerId, contentType: .music, captureProtected: captureProtected)
+            let visualPaneNode = PeerInfoVisualMediaPaneNode(context: context, chatControllerInteraction: chatControllerInteraction, peerId: peerId, chatLocation: chatLocation, chatLocationContextHolder: chatLocationContextHolder, contentType: .music, captureProtected: captureProtected)
             paneNode = visualPaneNode
-            //paneNode = PeerInfoListPaneNode(context: context, updatedPresentationData: updatedPresentationData, chatControllerInteraction: chatControllerInteraction, peerId: peerId, tagMask: .music)
         case .gifs:
-            let visualPaneNode = PeerInfoGifPaneNode(context: context, chatControllerInteraction: chatControllerInteraction, peerId: peerId, contentType: .gifs)
+            let visualPaneNode = PeerInfoGifPaneNode(context: context, chatControllerInteraction: chatControllerInteraction, peerId: peerId, chatLocation: chatLocation, chatLocationContextHolder: chatLocationContextHolder, contentType: .gifs)
             paneNode = visualPaneNode
         case .groupsInCommon:
             paneNode = PeerInfoGroupsInCommonPaneNode(context: context, peerId: peerId, chatControllerInteraction: chatControllerInteraction, openPeerContextAction: openPeerContextAction, groupsInCommonContext: data.groupsInCommon!)
@@ -452,6 +452,8 @@ private final class PeerInfoPendingPane {
 final class PeerInfoPaneContainerNode: ASDisplayNode, UIGestureRecognizerDelegate {
     private let context: AccountContext
     private let peerId: PeerId
+    private let chatLocation: ChatLocation
+    private let chatLocationContextHolder: Atomic<ChatLocationContextHolder?>
     private let isMediaOnly: Bool
     
     weak var parentController: ViewController?
@@ -509,10 +511,12 @@ final class PeerInfoPaneContainerNode: ASDisplayNode, UIGestureRecognizerDelegat
     private var currentAvailablePanes: [PeerInfoPaneKey]?
     private let updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)?
     
-    init(context: AccountContext, updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)?, peerId: PeerId, isMediaOnly: Bool) {
+    init(context: AccountContext, updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)?, peerId: PeerId, chatLocation: ChatLocation, chatLocationContextHolder: Atomic<ChatLocationContextHolder?>, isMediaOnly: Bool) {
         self.context = context
         self.updatedPresentationData = updatedPresentationData
         self.peerId = peerId
+        self.chatLocation = chatLocation
+        self.chatLocationContextHolder = chatLocationContextHolder
         self.isMediaOnly = isMediaOnly
         
         self.additionalBackgroundNode = ASDisplayNode()
@@ -807,6 +811,8 @@ final class PeerInfoPaneContainerNode: ASDisplayNode, UIGestureRecognizerDelegat
                         self?.requestPerformPeerMemberAction?(member, action)
                     },
                     peerId: self.peerId,
+                    chatLocation: self.chatLocation,
+                    chatLocationContextHolder: self.chatLocationContextHolder,
                     key: key,
                     hasBecomeReady: { [weak self] key in
                         let apply: () -> Void = {

submodules/TelegramUI/Sources/PeerInfo/PeerInfoScreen.swift

@@ -77,6 +77,7 @@ import AvatarNode
 import ComponentFlow
 import EmojiStatusComponent
 import ChatTitleView
+import ForumCreateTopicScreen
 
 protocol PeerInfoScreenItem: AnyObject {
     var id: AnyHashable { get }
@@ -423,7 +424,7 @@ private enum PeerInfoMemberAction {
 private enum PeerInfoContextSubject {
     case bio
     case phone(String)
-    case link
+    case link(customLink: String?)
 }
 
 private enum PeerInfoSettingsSection {
@@ -915,7 +916,7 @@ private func settingsEditingItems(data: PeerInfoScreenData?, state: PeerInfoStat
     return result
 }
 
-private func infoItems(data: PeerInfoScreenData?, context: AccountContext, presentationData: PresentationData, interaction: PeerInfoInteraction, nearbyPeerDistance: Int32?, reactionSourceMessageId: MessageId?, callMessages: [Message]) -> [(AnyHashable, [PeerInfoScreenItem])] {
+private func infoItems(data: PeerInfoScreenData?, context: AccountContext, presentationData: PresentationData, interaction: PeerInfoInteraction, nearbyPeerDistance: Int32?, reactionSourceMessageId: MessageId?, callMessages: [Message], chatLocation: ChatLocation) -> [(AnyHashable, [PeerInfoScreenItem])] {
     guard let data = data else {
         return []
     }
@@ -973,7 +974,7 @@ private func infoItems(data: PeerInfoScreenData?, context: AccountContext, prese
                     action: { _ in
                         interaction.openUsername(username)
                     }, longTapAction: { sourceNode in
-                        interaction.openPeerInfoContextMenu(.link, sourceNode)
+                        interaction.openPeerInfoContextMenu(.link(customLink: nil), sourceNode)
                     }, linkItemAction: { type, item in
                         if case .tap = type {
                             if case let .mention(username) = item {
@@ -1077,6 +1078,46 @@ private func infoItems(data: PeerInfoScreenData?, context: AccountContext, prese
         let ItemMembers = 6
         let ItemMemberRequests = 7
         
+        if let _ = data.threadInfo {
+            let mainUsername: String
+            if let addressName = channel.addressName {
+                mainUsername = addressName
+            } else {
+                mainUsername = "c/\(channel.id.id._internalGetInt64Value())"
+            }
+            
+            var threadId: Int64 = 0
+            if case let .replyThread(message) = chatLocation {
+                threadId = Int64(message.messageId.id)
+            }
+            
+            let linkText = "https://t.me/\(mainUsername)?topic=\(threadId)"
+            
+            items[.peerInfo]!.append(
+                PeerInfoScreenLabeledValueItem(
+                    id: ItemUsername,
+                    label: presentationData.strings.Channel_LinkItem,
+                    text: linkText,
+                    textColor: .accent,
+                    icon: .qrCode,
+                    action: { _ in
+                        interaction.openUsername(linkText)
+                    }, longTapAction: { sourceNode in
+                        interaction.openPeerInfoContextMenu(.link(customLink: linkText), sourceNode)
+                    }, linkItemAction: { type, item in
+                        if case .tap = type {
+                            if case let .mention(username) = item {
+                                interaction.openUsername(String(username.suffix(from: username.index(username.startIndex, offsetBy: 1))))
+                            }
+                        }
+                    }, iconAction: {
+                        interaction.openQrCode()
+                    }, requestLayout: {
+                        interaction.requestLayout(false)
+                    }
+                )
+            )
+        } else {
             if let location = (data.cachedData as? CachedChannelData)?.peerGeoLocation {
                 items[.groupLocation]!.append(PeerInfoScreenHeaderItem(id: ItemLocationHeader, text: presentationData.strings.GroupInfo_Location.uppercased()))
                 
@@ -1112,7 +1153,7 @@ private func infoItems(data: PeerInfoScreenData?, context: AccountContext, prese
                         action: { _ in
                             interaction.openUsername(username)
                         }, longTapAction: { sourceNode in
-                        interaction.openPeerInfoContextMenu(.link, sourceNode)
+                            interaction.openPeerInfoContextMenu(.link(customLink: nil), sourceNode)
                         }, linkItemAction: { type, item in
                             if case .tap = type {
                                 if case let .mention(username) = item {
@@ -1183,6 +1224,7 @@ private func infoItems(data: PeerInfoScreenData?, context: AccountContext, prese
                     }
                 }
             }
+        }
     } else if let group = data.peer as? TelegramGroup {
         if let cachedData = data.cachedData as? CachedGroupData {
             let aboutText: String?
@@ -1740,6 +1782,8 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
     private let isOpenedFromChat: Bool
     private let videoCallsEnabled: Bool
     private let callMessages: [Message]
+    private let chatLocation: ChatLocation
+    private let chatLocationContextHolder: Atomic<ChatLocationContextHolder?>
     
     let isSettings: Bool
     private let isMediaOnly: Bool
@@ -1834,7 +1878,7 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
     }
     private var didSetReady = false
     
-    init(controller: PeerInfoScreenImpl, context: AccountContext, peerId: PeerId, avatarInitiallyExpanded: Bool, isOpenedFromChat: Bool, nearbyPeerDistance: Int32?, reactionSourceMessageId: MessageId?, callMessages: [Message], isSettings: Bool, hintGroupInCommon: PeerId?, requestsContext: PeerInvitationImportersContext?) {
+    init(controller: PeerInfoScreenImpl, context: AccountContext, peerId: PeerId, avatarInitiallyExpanded: Bool, isOpenedFromChat: Bool, nearbyPeerDistance: Int32?, reactionSourceMessageId: MessageId?, callMessages: [Message], isSettings: Bool, hintGroupInCommon: PeerId?, requestsContext: PeerInvitationImportersContext?, chatLocation: ChatLocation, chatLocationContextHolder: Atomic<ChatLocationContextHolder?>) {
         self.controller = controller
         self.context = context
         self.peerId = peerId
@@ -1845,14 +1889,20 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
         self.reactionSourceMessageId = reactionSourceMessageId
         self.callMessages = callMessages
         self.isSettings = isSettings
+        self.chatLocation = chatLocation
+        self.chatLocationContextHolder = chatLocationContextHolder
         self.isMediaOnly = context.account.peerId == peerId && !isSettings
         
         self.scrollNode = ASScrollNode()
         self.scrollNode.view.delaysContentTouches = false
         self.scrollNode.canCancelAllTouchesInViews = true
         
-        self.headerNode = PeerInfoHeaderNode(context: context, avatarInitiallyExpanded: avatarInitiallyExpanded, isOpenedFromChat: isOpenedFromChat, isMediaOnly: self.isMediaOnly, isSettings: isSettings)
+        var forumTopicThreadId: Int64?
-        self.paneContainerNode = PeerInfoPaneContainerNode(context: context, updatedPresentationData: controller.updatedPresentationData, peerId: peerId, isMediaOnly: self.isMediaOnly)
+        if case let .replyThread(message) = chatLocation {
+            forumTopicThreadId = Int64(message.messageId.id)
+        }
+        self.headerNode = PeerInfoHeaderNode(context: context, avatarInitiallyExpanded: avatarInitiallyExpanded, isOpenedFromChat: isOpenedFromChat, isMediaOnly: self.isMediaOnly, isSettings: isSettings, forumTopicThreadId: forumTopicThreadId)
+        self.paneContainerNode = PeerInfoPaneContainerNode(context: context, updatedPresentationData: controller.updatedPresentationData, peerId: peerId, chatLocation: chatLocation, chatLocationContextHolder: chatLocationContextHolder, isMediaOnly: self.isMediaOnly)
         
         super.init()
         
@@ -2765,6 +2815,21 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
             }
             switch key {
             case .edit:
+                if case let .replyThread(message) = strongSelf.chatLocation {
+                    let threadId = Int64(message.messageId.id)
+                    if let threadInfo = strongSelf.data?.threadInfo {
+                        let controller = ForumCreateTopicScreen(context: strongSelf.context, peerId: strongSelf.peerId, mode: .edit(topic: threadInfo))
+                        controller.navigationPresentation = .modal
+                        let context = strongSelf.context
+                        controller.completion = { [weak controller] title, fileId in
+                            let _ = (context.engine.peers.editForumChannelTopic(id: peerId, threadId: threadId, title: title, iconFileId: fileId)
+                            |> deliverOnMainQueue).start(completed: {
+                                controller?.dismiss()
+                            })
+                        }
+                        strongSelf.controller?.push(controller)
+                    }
+                } else {
                     (strongSelf.controller?.parent as? TabBarController)?.updateIsTabBarHidden(true, transition: .animated(duration: 0.3, curve: .linear))
                     strongSelf.state = strongSelf.state.withIsEditing(true)
                     var updateOnCompletion = false
@@ -2795,6 +2860,7 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
                         }
                     })
                     strongSelf.controller?.navigationItem.setLeftBarButton(UIBarButtonItem(title: strongSelf.presentationData.strings.Common_Cancel, style: .plain, target: strongSelf, action: #selector(strongSelf.editingCancelPressed)), animated: true)
+                }
             case .done, .cancel:
                 strongSelf.view.endEditing(true)
                 if case .done = key {
@@ -3207,7 +3273,7 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
                 strongSelf.controller?.present(emojiStatusSelectionController, in: .window(.root))
             }
         } else {
-            screenData = peerInfoScreenData(context: context, peerId: peerId, strings: self.presentationData.strings, dateTimeFormat: self.presentationData.dateTimeFormat, isSettings: self.isSettings, hintGroupInCommon: hintGroupInCommon, existingRequestsContext: requestsContext)
+            screenData = peerInfoScreenData(context: context, peerId: peerId, strings: self.presentationData.strings, dateTimeFormat: self.presentationData.dateTimeFormat, isSettings: self.isSettings, hintGroupInCommon: hintGroupInCommon, existingRequestsContext: requestsContext, chatLocation: self.chatLocation, chatLocationContextHolder: self.chatLocationContextHolder)
                        
             self.headerNode.displayPremiumIntro = { [weak self] sourceView, peerStatus, emojiStatusFileAndPack, white in
                 guard let strongSelf = self else {
@@ -4085,8 +4151,8 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
                     return .single(items)
                 }
                 
-                let allHeaderButtons = Set(peerInfoHeaderButtons(peer: peer, cachedData: data.cachedData, isOpenedFromChat: strongSelf.isOpenedFromChat, isExpanded: false, videoCallsEnabled: strongSelf.videoCallsEnabled, isSecretChat: strongSelf.peerId.namespace == Namespaces.Peer.SecretChat, isContact: strongSelf.data?.isContact ?? false))
+                let allHeaderButtons = Set(peerInfoHeaderButtons(peer: peer, cachedData: data.cachedData, isOpenedFromChat: strongSelf.isOpenedFromChat, isExpanded: false, videoCallsEnabled: strongSelf.videoCallsEnabled, isSecretChat: strongSelf.peerId.namespace == Namespaces.Peer.SecretChat, isContact: strongSelf.data?.isContact ?? false, threadInfo: data.threadInfo))
-                let headerButtons = Set(peerInfoHeaderButtons(peer: peer, cachedData: data.cachedData, isOpenedFromChat: strongSelf.isOpenedFromChat, isExpanded: true, videoCallsEnabled: strongSelf.videoCallsEnabled, isSecretChat: strongSelf.peerId.namespace == Namespaces.Peer.SecretChat, isContact: strongSelf.data?.isContact ?? false))
+                let headerButtons = Set(peerInfoHeaderButtons(peer: peer, cachedData: data.cachedData, isOpenedFromChat: strongSelf.isOpenedFromChat, isExpanded: true, videoCallsEnabled: strongSelf.videoCallsEnabled, isSecretChat: strongSelf.peerId.namespace == Namespaces.Peer.SecretChat, isContact: strongSelf.data?.isContact ?? false, threadInfo: strongSelf.data?.threadInfo))
                 
                 let filteredButtons = allHeaderButtons.subtracting(headerButtons)
                 
@@ -4538,6 +4604,19 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
     
     private func openChatWithMessageSearch() {
         if let navigationController = (self.controller?.navigationController as? NavigationController) {
+            if case let .replyThread(currentMessage) = self.chatLocation, let current = navigationController.viewControllers.first(where: { controller in
+                if let controller = controller as? ChatControllerImpl, case let .replyThread(message) = controller.chatLocation, message.messageId == currentMessage.messageId {
+                    return true
+                }
+                return false
+            }) as? ChatControllerImpl {
+                var viewControllers = navigationController.viewControllers
+                if let index = viewControllers.firstIndex(of: current) {
+                    viewControllers.removeSubrange(index + 1 ..< viewControllers.count)
+                }
+                navigationController.setViewControllers(viewControllers, animated: true)
+                current.activateSearch()
+            } else {
                 self.context.sharedContext.navigateToChatController(NavigateToChatControllerParams(navigationController: navigationController, context: self.context, chatLocation: .peer(id: self.peerId), keepStack: self.nearbyPeerDistance != nil ? .always : .default, activateMessageSearch: (.everything, ""), peerNearbyData: self.nearbyPeerDistance.flatMap({ ChatPeerNearbyData(distance: $0) }), completion: { [weak self] _ in
                     if let strongSelf = self, strongSelf.nearbyPeerDistance != nil {
                         var viewControllers = navigationController.viewControllers
@@ -4552,6 +4631,7 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
                 }))
             }
         }
+    }
     
     private func openChatForReporting(_ reason: ReportReason) {
         if let navigationController = (self.controller?.navigationController as? NavigationController) {
@@ -4779,7 +4859,14 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
     }
     
     private func openUsername(value: String) {
-        let shareController = ShareController(context: self.context, subject: .url("https://t.me/\(value)"), updatedPresentationData: self.controller?.updatedPresentationData)
+        let url: String
+        if value.hasPrefix("https://") {
+            url = value
+        } else {
+            url = "https://t.me/\(value)"
+        }
+        
+        let shareController = ShareController(context: self.context, subject: .url(url), updatedPresentationData: self.controller?.updatedPresentationData)
         shareController.completed = { [weak self] peerIds in
             guard let strongSelf = self else {
                 return
@@ -5940,10 +6027,13 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
                     return nil
                 }
             }))
-        case .link:
+        case let .link(customLink):
-            if let addressName = peer.addressName {
             let text: String
             let content: UndoOverlayContent
+            if let customLink = customLink {
+                text = customLink
+                content = .linkCopied(text: self.presentationData.strings.Conversation_LinkCopied)
+            } else if let addressName = peer.addressName {
                 if peer is TelegramChannel {
                     text = "https://t.me/\(addressName)"
                     content = .linkCopied(text: self.presentationData.strings.Conversation_LinkCopied)
@@ -5951,6 +6041,11 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
                     text = "@" + addressName
                     content = .copy(text: self.presentationData.strings.Conversation_UsernameCopied)
                 }
+            } else {
+                text = "https://t.me/@id\(peer.id.id._internalGetInt64Value())"
+                content = .linkCopied(text: self.presentationData.strings.Conversation_LinkCopied)
+            }
+        
             let contextMenuController = ContextMenuController(actions: [ContextMenuAction(content: .text(title: self.presentationData.strings.Conversation_ContextMenuCopy, accessibilityLabel: self.presentationData.strings.Conversation_ContextMenuCopy), action: { [weak self] in
                 UIPasteboard.general.string = text
                 
@@ -5966,7 +6061,6 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
             }))
         }
     }
-    }
     
     private func performBioLinkAction(action: TextLinkItemActionType, item: TextLinkItem) {
         guard let data = self.data, let peer = data.peer, let controller = self.controller else {
@@ -6460,7 +6554,12 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
             return
         }
         
-        controller.present(ChatQrCodeScreen(context: self.context, subject: .peer(peer)), in: .window(.root))
+        var threadId: Int64 = 0
+        if case let .replyThread(message) = self.chatLocation {
+            threadId = Int64(message.messageId.id)
+        }
+
+        controller.present(ChatQrCodeScreen(context: self.context, subject: .peer(peer: peer, threadId: threadId)), in: .window(.root))
     }
     
     fileprivate func openSettings(section: PeerInfoSettingsSection) {
@@ -7428,7 +7527,7 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
         }
         let headerInset = sectionInset
         
-        var headerHeight = self.headerNode.update(width: layout.size.width, containerHeight: layout.size.height, containerInset: headerInset, statusBarHeight: layout.statusBarHeight ?? 0.0, navigationHeight: navigationHeight, isModalOverlay: layout.isModalOverlay, isMediaOnly: self.isMediaOnly, contentOffset: self.isMediaOnly ? 212.0 : self.scrollNode.view.contentOffset.y, paneContainerY: self.paneContainerNode.frame.minY, presentationData: self.presentationData, peer: self.data?.peer, cachedData: self.data?.cachedData, notificationSettings: self.data?.notificationSettings, statusData: self.data?.status, panelStatusData: self.customStatusData, isSecretChat: self.peerId.namespace == Namespaces.Peer.SecretChat, isContact: self.data?.isContact ?? false, isSettings: self.isSettings, state: self.state, metrics: layout.metrics, transition: transition, additive: additive)
+        var headerHeight = self.headerNode.update(width: layout.size.width, containerHeight: layout.size.height, containerInset: headerInset, statusBarHeight: layout.statusBarHeight ?? 0.0, navigationHeight: navigationHeight, isModalOverlay: layout.isModalOverlay, isMediaOnly: self.isMediaOnly, contentOffset: self.isMediaOnly ? 212.0 : self.scrollNode.view.contentOffset.y, paneContainerY: self.paneContainerNode.frame.minY, presentationData: self.presentationData, peer: self.data?.peer, cachedData: self.data?.cachedData, threadInfo: self.data?.threadInfo, notificationSettings: self.data?.notificationSettings, statusData: self.data?.status, panelStatusData: self.customStatusData, isSecretChat: self.peerId.namespace == Namespaces.Peer.SecretChat, isContact: self.data?.isContact ?? false, isSettings: self.isSettings, state: self.state, metrics: layout.metrics, transition: transition, additive: additive)
         if !self.isSettings && !self.state.isEditing {
             headerHeight += 71.0
         }
@@ -7448,7 +7547,7 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
             insets.left += sectionInset
             insets.right += sectionInset
             
-            let items = self.isSettings ? settingsItems(data: self.data, context: self.context, presentationData: self.presentationData, interaction: self.interaction, isExpanded: self.headerNode.isAvatarExpanded) : infoItems(data: self.data, context: self.context, presentationData: self.presentationData, interaction: self.interaction, nearbyPeerDistance: self.nearbyPeerDistance, reactionSourceMessageId: self.reactionSourceMessageId, callMessages: self.callMessages)
+            let items = self.isSettings ? settingsItems(data: self.data, context: self.context, presentationData: self.presentationData, interaction: self.interaction, isExpanded: self.headerNode.isAvatarExpanded) : infoItems(data: self.data, context: self.context, presentationData: self.presentationData, interaction: self.interaction, nearbyPeerDistance: self.nearbyPeerDistance, reactionSourceMessageId: self.reactionSourceMessageId, callMessages: self.callMessages, chatLocation: self.chatLocation)
             
             contentHeight += headerHeight
             if !(self.isSettings && self.state.isEditing) {
@@ -7788,7 +7887,7 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, UIScrollViewDelegate
                 }
                 let headerInset = sectionInset
 
-                let _ = self.headerNode.update(width: layout.size.width, containerHeight: layout.size.height, containerInset: headerInset, statusBarHeight: layout.statusBarHeight ?? 0.0, navigationHeight: navigationHeight, isModalOverlay: layout.isModalOverlay, isMediaOnly: self.isMediaOnly, contentOffset: self.isMediaOnly ? 212.0 : offsetY, paneContainerY: self.paneContainerNode.frame.minY, presentationData: self.presentationData, peer: self.data?.peer, cachedData: self.data?.cachedData, notificationSettings: self.data?.notificationSettings, statusData: self.data?.status, panelStatusData: self.customStatusData, isSecretChat: self.peerId.namespace == Namespaces.Peer.SecretChat, isContact: self.data?.isContact ?? false, isSettings: self.isSettings, state: self.state, metrics: layout.metrics, transition: transition, additive: additive)
+                let _ = self.headerNode.update(width: layout.size.width, containerHeight: layout.size.height, containerInset: headerInset, statusBarHeight: layout.statusBarHeight ?? 0.0, navigationHeight: navigationHeight, isModalOverlay: layout.isModalOverlay, isMediaOnly: self.isMediaOnly, contentOffset: self.isMediaOnly ? 212.0 : offsetY, paneContainerY: self.paneContainerNode.frame.minY, presentationData: self.presentationData, peer: self.data?.peer, cachedData: self.data?.cachedData, threadInfo: self.data?.threadInfo, notificationSettings: self.data?.notificationSettings, statusData: self.data?.status, panelStatusData: self.customStatusData, isSecretChat: self.peerId.namespace == Namespaces.Peer.SecretChat, isContact: self.data?.isContact ?? false, isSettings: self.isSettings, state: self.state, metrics: layout.metrics, transition: transition, additive: additive)
             }
             
             let paneAreaExpansionDistance: CGFloat = 32.0
@@ -8068,6 +8167,8 @@ public final class PeerInfoScreenImpl: ViewController, PeerInfoScreen, KeyShortc
     private let isSettings: Bool
     private let hintGroupInCommon: PeerId?
     private weak var requestsContext: PeerInvitationImportersContext?
+    private let chatLocation: ChatLocation
+    private let chatLocationContextHolder = Atomic<ChatLocationContextHolder?>(value: nil)
     
     fileprivate var presentationData: PresentationData
     private var presentationDataDisposable: Disposable?
@@ -8102,7 +8203,7 @@ public final class PeerInfoScreenImpl: ViewController, PeerInfoScreen, KeyShortc
     
     private var validLayout: (layout: ContainerViewLayout, navigationHeight: CGFloat)?
     
-    public init(context: AccountContext, updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)?, peerId: PeerId, avatarInitiallyExpanded: Bool, isOpenedFromChat: Bool, nearbyPeerDistance: Int32?, reactionSourceMessageId: MessageId?, callMessages: [Message], isSettings: Bool = false, hintGroupInCommon: PeerId? = nil, requestsContext: PeerInvitationImportersContext? = nil) {
+    public init(context: AccountContext, updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)?, peerId: PeerId, avatarInitiallyExpanded: Bool, isOpenedFromChat: Bool, nearbyPeerDistance: Int32?, reactionSourceMessageId: MessageId?, callMessages: [Message], isSettings: Bool = false, hintGroupInCommon: PeerId? = nil, requestsContext: PeerInvitationImportersContext? = nil, forumTopicThread: ChatReplyThreadMessage? = nil) {
         self.context = context
         self.updatedPresentationData = updatedPresentationData
         self.peerId = peerId
@@ -8115,6 +8216,12 @@ public final class PeerInfoScreenImpl: ViewController, PeerInfoScreen, KeyShortc
         self.hintGroupInCommon = hintGroupInCommon
         self.requestsContext = requestsContext
         
+        if let forumTopicThread = forumTopicThread {
+            self.chatLocation = .replyThread(message: forumTopicThread)
+        } else {
+            self.chatLocation = .peer(id: peerId)
+        }
+        
         self.presentationData = updatedPresentationData?.0 ?? context.sharedContext.currentPresentationData.with { $0 }
         
         let baseNavigationBarPresentationData = NavigationBarPresentationData(presentationData: self.presentationData)
@@ -8299,6 +8406,7 @@ public final class PeerInfoScreenImpl: ViewController, PeerInfoScreen, KeyShortc
             self.navigationItem.backBarButtonItem = UIBarButtonItem(title: self.presentationData.strings.Common_Back, style: .plain, target: nil, action: nil)
         }
            
+        if case .peer = self.chatLocation {
             self.navigationBar?.makeCustomTransitionNode = { [weak self] other, isInteractive in
                 guard let strongSelf = self else {
                     return nil
@@ -8326,6 +8434,7 @@ public final class PeerInfoScreenImpl: ViewController, PeerInfoScreen, KeyShortc
                 }
                 return nil
             }
+        }
         
         self.setStatusBarStyle(avatarInitiallyExpanded ? .White : self.presentationData.theme.rootController.statusBarStyle.style, animated: false)
         
@@ -8396,7 +8505,7 @@ public final class PeerInfoScreenImpl: ViewController, PeerInfoScreen, KeyShortc
     }
     
     override public func loadDisplayNode() {
-        self.displayNode = PeerInfoScreenNode(controller: self, context: self.context, peerId: self.peerId, avatarInitiallyExpanded: self.avatarInitiallyExpanded, isOpenedFromChat: self.isOpenedFromChat, nearbyPeerDistance: self.nearbyPeerDistance, reactionSourceMessageId: self.reactionSourceMessageId, callMessages: self.callMessages, isSettings: self.isSettings, hintGroupInCommon: self.hintGroupInCommon, requestsContext: requestsContext)
+        self.displayNode = PeerInfoScreenNode(controller: self, context: self.context, peerId: self.peerId, avatarInitiallyExpanded: self.avatarInitiallyExpanded, isOpenedFromChat: self.isOpenedFromChat, nearbyPeerDistance: self.nearbyPeerDistance, reactionSourceMessageId: self.reactionSourceMessageId, callMessages: self.callMessages, isSettings: self.isSettings, hintGroupInCommon: self.hintGroupInCommon, requestsContext: self.requestsContext, chatLocation: self.chatLocation, chatLocationContextHolder: self.chatLocationContextHolder)
         self.controllerNode.accountsAndPeers.set(self.accountsAndPeers.get() |> map { $0.1 })
         self.controllerNode.activeSessionsContextAndCount.set(self.activeSessionsContextAndCount.get())
         self.cachedDataPromise.set(self.controllerNode.cachedDataPromise.get())
@@ -8795,7 +8904,7 @@ private final class PeerInfoNavigationTransitionNode: ASDisplayNode, CustomNavig
                 }
                 let headerInset = sectionInset
                 
-                topHeight = self.headerNode.update(width: layout.size.width, containerHeight: layout.size.height, containerInset: headerInset, statusBarHeight: layout.statusBarHeight ?? 0.0, navigationHeight: topNavigationBar.bounds.height, isModalOverlay: layout.isModalOverlay, isMediaOnly: false, contentOffset: 0.0, paneContainerY: 0.0, presentationData: self.presentationData, peer: self.screenNode.data?.peer, cachedData: self.screenNode.data?.cachedData, notificationSettings: self.screenNode.data?.notificationSettings, statusData: self.screenNode.data?.status, panelStatusData: (nil, nil, nil), isSecretChat: self.screenNode.peerId.namespace == Namespaces.Peer.SecretChat, isContact: self.screenNode.data?.isContact ?? false, isSettings: self.screenNode.isSettings, state: self.screenNode.state, metrics: layout.metrics, transition: transition, additive: false)
+                topHeight = self.headerNode.update(width: layout.size.width, containerHeight: layout.size.height, containerInset: headerInset, statusBarHeight: layout.statusBarHeight ?? 0.0, navigationHeight: topNavigationBar.bounds.height, isModalOverlay: layout.isModalOverlay, isMediaOnly: false, contentOffset: 0.0, paneContainerY: 0.0, presentationData: self.presentationData, peer: self.screenNode.data?.peer, cachedData: self.screenNode.data?.cachedData, threadInfo: self.screenNode.data?.threadInfo, notificationSettings: self.screenNode.data?.notificationSettings, statusData: self.screenNode.data?.status, panelStatusData: (nil, nil, nil), isSecretChat: self.screenNode.peerId.namespace == Namespaces.Peer.SecretChat, isContact: self.screenNode.data?.isContact ?? false, isSettings: self.screenNode.isSettings, state: self.screenNode.state, metrics: layout.metrics, transition: transition, additive: false)
             }
             
             let titleScale = (fraction * previousTitleNode.view.bounds.height + (1.0 - fraction) * self.headerNode.titleNodeRawContainer.bounds.height) / previousTitleNode.view.bounds.height

submodules/TelegramUI/Sources/PeerInfoGifPaneNode.swift

@@ -761,6 +761,8 @@ final class PeerInfoGifPaneNode: ASDisplayNode, PeerInfoPaneNode, UIScrollViewDe
     
     private let context: AccountContext
     private let peerId: PeerId
+    private let chatLocation: ChatLocation
+    private let chatLocationContextHolder: Atomic<ChatLocationContextHolder?>
     private let chatControllerInteraction: ChatControllerInteraction
     private let contentType: ContentType
     
@@ -809,9 +811,11 @@ final class PeerInfoGifPaneNode: ASDisplayNode, PeerInfoPaneNode, UIScrollViewDe
         return 0.0
     }
     
-    init(context: AccountContext, chatControllerInteraction: ChatControllerInteraction, peerId: PeerId, contentType: ContentType) {
+    init(context: AccountContext, chatControllerInteraction: ChatControllerInteraction, peerId: PeerId, chatLocation: ChatLocation, chatLocationContextHolder: Atomic<ChatLocationContextHolder?>, contentType: ContentType) {
         self.context = context
         self.peerId = peerId
+        self.chatLocation = chatLocation
+        self.chatLocationContextHolder = chatLocationContextHolder
         self.chatControllerInteraction = chatControllerInteraction
         self.contentType = contentType
         

submodules/TelegramUI/Sources/SharedAccountContext.swift

@@ -1468,8 +1468,8 @@ public final class SharedAccountContextImpl: SharedAccountContext {
         return recentSessionsController(context: context, activeSessionsContext: activeSessionsContext, webSessionsContext: context.engine.privacy.webSessions(), websitesOnly: false)
     }
     
-    public func makeChatQrCodeScreen(context: AccountContext, peer: Peer) -> ViewController {
+    public func makeChatQrCodeScreen(context: AccountContext, peer: Peer, threadId: Int64?) -> ViewController {
-        return ChatQrCodeScreen(context: context, subject: .peer(peer))
+        return ChatQrCodeScreen(context: context, subject: .peer(peer: peer, threadId: threadId))
     }
     
     public func makePrivacyAndSecurityController(context: AccountContext) -> ViewController {
@@ -1532,7 +1532,14 @@ private func peerInfoControllerImpl(context: AccountContext, updatedPresentation
     if let _ = peer as? TelegramGroup {
         return PeerInfoScreenImpl(context: context, updatedPresentationData: updatedPresentationData, peerId: peer.id, avatarInitiallyExpanded: avatarInitiallyExpanded, isOpenedFromChat: isOpenedFromChat, nearbyPeerDistance: nil, reactionSourceMessageId: nil, callMessages: [])
     } else if let _ = peer as? TelegramChannel {
-        return PeerInfoScreenImpl(context: context, updatedPresentationData: updatedPresentationData, peerId: peer.id, avatarInitiallyExpanded: avatarInitiallyExpanded, isOpenedFromChat: isOpenedFromChat, nearbyPeerDistance: nil, reactionSourceMessageId: nil, callMessages: [])
+        var forumTopicThread: ChatReplyThreadMessage?
+        switch mode {
+        case let .forumTopic(thread):
+            forumTopicThread = thread
+        default:
+            break
+        }
+        return PeerInfoScreenImpl(context: context, updatedPresentationData: updatedPresentationData, peerId: peer.id, avatarInitiallyExpanded: avatarInitiallyExpanded, isOpenedFromChat: isOpenedFromChat, nearbyPeerDistance: nil, reactionSourceMessageId: nil, callMessages: [], forumTopicThread: forumTopicThread)
     } else if peer is TelegramUser {
         var nearbyPeerDistance: Int32?
         var reactionSourceMessageId: MessageId?
@@ -1549,6 +1556,8 @@ private func peerInfoControllerImpl(context: AccountContext, updatedPresentation
             hintGroupInCommon = id
         case let .reaction(messageId):
             reactionSourceMessageId = messageId
+        case .forumTopic:
+            break
         }
         return PeerInfoScreenImpl(context: context, updatedPresentationData: updatedPresentationData, peerId: peer.id, avatarInitiallyExpanded: avatarInitiallyExpanded, isOpenedFromChat: isOpenedFromChat, nearbyPeerDistance: nearbyPeerDistance, reactionSourceMessageId: reactionSourceMessageId, callMessages: callMessages, hintGroupInCommon: hintGroupInCommon)
     } else if peer is TelegramSecretChat {

submodules/UrlHandling/Sources/UrlHandling.swift

@@ -73,7 +73,12 @@ public enum ParsedInternalPeerUrlParameter {
 }
 
 public enum ParsedInternalUrl {
-    case peerName(String, ParsedInternalPeerUrlParameter?)
+    public enum UrlPeerReference {
+        case name(String)
+        case id(PeerId)
+    }
+    
+    case peer(UrlPeerReference, ParsedInternalPeerUrlParameter?)
     case peerId(PeerId)
     case privateMessage(messageId: MessageId, threadId: Int32?, timecode: Double?)
     case stickerPack(name: String, type: StickerPackUrlType)
@@ -193,9 +198,9 @@ public func parseInternalUrl(query: String) -> ParsedInternalUrl? {
                                             break
                                         }
                                     }
-                                    return .peerName(peerName, .attachBotStart(value, startAttach))
+                                    return .peer(.name(peerName), .attachBotStart(value, startAttach))
                                 } else if queryItem.name == "start" {
-                                    return .peerName(peerName, .botStart(value))
+                                    return .peer(.name(peerName), .botStart(value))
                                 } else if queryItem.name == "startgroup" {
                                     var botAdminRights: ResolvedBotAdminRights?
                                     for queryItem in queryItems {
@@ -204,11 +209,11 @@ public func parseInternalUrl(query: String) -> ParsedInternalUrl? {
                                             break
                                         }
                                     }
-                                    return .peerName(peerName, .groupBotStart(value, botAdminRights))
+                                    return .peer(.name(peerName), .groupBotStart(value, botAdminRights))
                                 } else if queryItem.name == "game" {
                                     return nil
                                 } else if ["voicechat", "videochat", "livestream"].contains(queryItem.name) {
-                                    return .peerName(peerName, .voiceChat(value))
+                                    return .peer(.name(peerName), .voiceChat(value))
                                 } else if queryItem.name == "startattach" {
                                     var choose: String?
                                     for queryItem in queryItems {
@@ -220,7 +225,7 @@ public func parseInternalUrl(query: String) -> ParsedInternalUrl? {
                                     return .startAttach(peerName, value, choose)
                                 }
                             } else if ["voicechat", "videochat", "livestream"].contains(queryItem.name)  {
-                                return .peerName(peerName, .voiceChat(nil))
+                                return .peer(.name(peerName), .voiceChat(nil))
                             } else if queryItem.name == "startattach" {
                                 var choose: String?
                                 for queryItem in queryItems {
@@ -238,7 +243,7 @@ public func parseInternalUrl(query: String) -> ParsedInternalUrl? {
                                         break
                                     }
                                 }
-                                return .peerName(peerName, .groupBotStart("", botAdminRights))
+                                return .peer(.name(peerName), .groupBotStart("", botAdminRights))
                             }
                         }
                     }
@@ -269,7 +274,7 @@ public func parseInternalUrl(query: String) -> ParsedInternalUrl? {
                     let component = pathComponents[0].replacingOccurrences(of: "%24", with: "$")
                     return .invoice(component)
                 }
-                return .peerName(peerName, nil)
+                return .peer(.name(peerName), nil)
             } else if pathComponents.count == 2 || pathComponents.count == 3 {
                 if pathComponents[0] == "addstickers" {
                     return .stickerPack(name: pathComponents[1], type: .stickers)
@@ -408,7 +413,7 @@ public func parseInternalUrl(query: String) -> ParsedInternalUrl? {
                         if let queryItems = components.queryItems {
                             for queryItem in queryItems {
                                 if let value = queryItem.value {
-                                    if queryItem.name == "thread" {
+                                    if queryItem.name == "thread" || queryItem.name == "topic" {
                                         if let intValue = Int32(value) {
                                             threadId = intValue
                                         }
@@ -424,6 +429,29 @@ public func parseInternalUrl(query: String) -> ParsedInternalUrl? {
                     } else {
                         return nil
                     }
+                } else if pathComponents.count == 2 && pathComponents[0] == "c" {
+                    if let channelId = Int64(pathComponents[1]) {
+                        var threadId: Int32?
+                        if let queryItems = components.queryItems {
+                            for queryItem in queryItems {
+                                if let value = queryItem.value {
+                                    if queryItem.name == "thread" || queryItem.name == "topic" {
+                                        if let intValue = Int32(value) {
+                                            threadId = intValue
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                        
+                        if let threadId = threadId {
+                            return .peer(.id(PeerId(namespace: Namespaces.Peer.CloudChannel, id: PeerId.Id._internalFromInt64Value(channelId))), .replyThread(threadId, threadId))
+                        } else {
+                            return nil
+                        }
+                    } else {
+                        return nil
+                    }
                 } else if let value = Int32(pathComponents[1]) {
                     var threadId: Int32?
                     var commentId: Int32?
@@ -431,7 +459,7 @@ public func parseInternalUrl(query: String) -> ParsedInternalUrl? {
                     if let queryItems = components.queryItems {
                         for queryItem in queryItems {
                             if let value = queryItem.value {
-                                if queryItem.name == "thread" {
+                                if queryItem.name == "thread" || queryItem.name == "topic" {
                                     if let intValue = Int32(value) {
                                         threadId = intValue
                                     }
@@ -448,11 +476,11 @@ public func parseInternalUrl(query: String) -> ParsedInternalUrl? {
                         }
                     }
                     if let threadId = threadId {
-                        return .peerName(peerName, .replyThread(threadId, value))
+                        return .peer(.name(peerName), .replyThread(threadId, value))
                     } else if let commentId = commentId {
-                        return .peerName(peerName, .replyThread(value, commentId))
+                        return .peer(.name(peerName), .replyThread(value, commentId))
                     } else {
-                        return .peerName(peerName, .channelMessage(value, timecode))
+                        return .peer(.name(peerName), .channelMessage(value, timecode))
                     }
                 } else {
                     return nil
@@ -489,12 +517,36 @@ private func resolveInternalUrl(context: AccountContext, url: ParsedInternalUrl)
                     return .single(.peer(nil, .info))
                 }
             }
-        case let .peerName(name, parameter):
+        case let .peer(reference, parameter):
-            return context.engine.peers.resolvePeerByName(name: name)
+            let resolvedPeer: Signal<Peer?, NoError>
+            switch reference {
+            case let .name(name):
+                resolvedPeer = context.engine.peers.resolvePeerByName(name: name)
                 |> take(1)
                 |> mapToSignal { peer -> Signal<Peer?, NoError> in
                     return .single(peer?._asPeer())
                 }
+            case let .id(id):
+                if id.namespace == Namespaces.Peer.CloudChannel {
+                    resolvedPeer = context.engine.data.get(TelegramEngine.EngineData.Item.Peer.Peer(id: id))
+                    |> mapToSignal { peer -> Signal<Peer?, NoError> in
+                        let foundPeer: Signal<Peer?, NoError>
+                        if let peer = peer {
+                            foundPeer = .single(peer._asPeer())
+                        } else {
+                            foundPeer = TelegramEngine(account: context.account).peers.findChannelById(channelId: id.id._internalGetInt64Value())
+                            |> map { peer -> Peer? in
+                                return peer?._asPeer()
+                            }
+                        }
+                        return foundPeer
+                    }
+                } else {
+                    resolvedPeer = .single(nil)
+                }
+            }
+        
+            return resolvedPeer
             |> mapToSignal { peer -> Signal<ResolvedUrl?, NoError> in
                 if let peer = peer {
                     if let parameter = parameter {