tail toggle

apps/ios/Shared/Model/ChatModel.swift

@@ -123,6 +123,14 @@ class NetworkModel: ObservableObject {
     }
 }
 
+/// ChatItemWithMenu can depend on previous or next item for it's appearance
+/// This dummy model is used to force an update of all chat items,
+/// when they might have changed appearance.
+class ChatItemDummyModel: ObservableObject {
+    static let shared = ChatItemDummyModel()
+    func sendUpdate() { objectWillChange.send() }
+}
+
 final class ChatModel: ObservableObject {
     @Published var onboardingStage: OnboardingStage?
     @Published var setDeliveryReceipts = false
@@ -428,19 +436,17 @@ final class ChatModel: ObservableObject {
 
     private func _upsertChatItem(_ cInfo: ChatInfo, _ cItem: ChatItem) -> Bool {
         if let i = getChatItemIndex(cItem) {
-            withConditionalAnimation {
-                _updateChatItem(at: i, with: cItem)
-            }
+            _updateChatItem(at: i, with: cItem)
+            ChatItemDummyModel.shared.sendUpdate()
             return false
         } else {
-            withConditionalAnimation(itemAnimation()) {
-                var ci = cItem
-                if let status = chatItemStatuses.removeValue(forKey: ci.id), case .sndNew = ci.meta.itemStatus {
-                    ci.meta.itemStatus = status
-                }
-                im.reversedChatItems.insert(ci, at: hasLiveDummy ? 1 : 0)
-                im.itemAdded = true
+            var ci = cItem
+            if let status = chatItemStatuses.removeValue(forKey: ci.id), case .sndNew = ci.meta.itemStatus {
+                ci.meta.itemStatus = status
             }
+            im.reversedChatItems.insert(ci, at: hasLiveDummy ? 1 : 0)
+            im.itemAdded = true
+            ChatItemDummyModel.shared.sendUpdate()
             return true
         }
 

apps/ios/Shared/Views/Chat/ChatItem/CIGroupInvitationView.swift

@@ -12,6 +12,7 @@ import SimpleXChat
 struct CIGroupInvitationView: View {
     @EnvironmentObject var chatModel: ChatModel
     @EnvironmentObject var theme: AppTheme
+    @Environment(\.showTimestamp) var showTimestamp
     @ObservedObject var chat: Chat
     var chatItem: ChatItem
     var groupInvitation: CIGroupInvitation
@@ -45,7 +46,7 @@ struct CIGroupInvitationView: View {
                                     .foregroundColor(inProgress ? theme.colors.secondary : chatIncognito ? .indigo : theme.colors.primary)
                                     .font(.callout)
                                 + Text("   ")
-                                + ciMetaText(chatItem.meta, chatTTL: nil, encrypted: nil, transparent: true, showStatus: false, showEdited: false, showViaProxy: showSentViaProxy)
+                                + ciMetaText(chatItem.meta, chatTTL: nil, encrypted: nil, transparent: true, showStatus: false, showEdited: false, showViaProxy: showSentViaProxy, showTimesamp: showTimestamp)
                             )
                             .overlay(DetermineWidth())
                         }
@@ -53,7 +54,7 @@ struct CIGroupInvitationView: View {
                         (
                             groupInvitationText()
                             + Text("   ")
-                            + ciMetaText(chatItem.meta, chatTTL: nil, encrypted: nil, transparent: true, showStatus: false, showEdited: false, showViaProxy: showSentViaProxy)
+                            + ciMetaText(chatItem.meta, chatTTL: nil, encrypted: nil, transparent: true, showStatus: false, showEdited: false, showViaProxy: showSentViaProxy, showTimesamp: showTimestamp)
                         )
                         .overlay(DetermineWidth())
                     }
@@ -69,6 +70,7 @@ struct CIGroupInvitationView: View {
         }
         .padding(.horizontal, 12)
         .padding(.vertical, 6)
+        .modifier(ChatTailPadding(chatItem: chatItem))
         .background(chatItemFrameColor(chatItem, theme))
         .textSelection(.disabled)
         .onPreferenceChange(DetermineWidth.Key.self) { frameWidth = $0 }

apps/ios/Shared/Views/Chat/ChatItem/CIMetaView.swift

@@ -12,6 +12,7 @@ import SimpleXChat
 struct CIMetaView: View {
     @ObservedObject var chat: Chat
     @EnvironmentObject var theme: AppTheme
+    @Environment(\.showTimestamp) var showTimestamp
     var chatItem: ChatItem
     var metaColor: Color
     var paleMetaColor = Color(UIColor.tertiaryLabel)
@@ -30,24 +31,24 @@ struct CIMetaView: View {
             switch meta.itemStatus {
             case let .sndSent(sndProgress):
                 switch sndProgress {
-                case .complete: ciMetaText(meta, chatTTL: ttl, encrypted: encrypted,  color: metaColor, sent: .sent, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy)
-                case .partial: ciMetaText(meta, chatTTL: ttl, encrypted: encrypted, color: paleMetaColor, sent: .sent, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy)
+                case .complete: ciMetaText(meta, chatTTL: ttl, encrypted: encrypted,  color: metaColor, sent: .sent, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy, showTimesamp: showTimestamp)
+                case .partial: ciMetaText(meta, chatTTL: ttl, encrypted: encrypted, color: paleMetaColor, sent: .sent, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy, showTimesamp: showTimestamp)
                 }
             case let .sndRcvd(_, sndProgress):
                 switch sndProgress {
                 case .complete:
                     ZStack {
-                        ciMetaText(meta, chatTTL: ttl, encrypted: encrypted, color: metaColor, sent: .rcvd1, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy)
-                        ciMetaText(meta, chatTTL: ttl, encrypted: encrypted, color: metaColor, sent: .rcvd2, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy)
+                        ciMetaText(meta, chatTTL: ttl, encrypted: encrypted, color: metaColor, sent: .rcvd1, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy, showTimesamp: showTimestamp)
+                        ciMetaText(meta, chatTTL: ttl, encrypted: encrypted, color: metaColor, sent: .rcvd2, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy, showTimesamp: showTimestamp)
                     }
                 case .partial:
                     ZStack {
-                        ciMetaText(meta, chatTTL: ttl, encrypted: encrypted, color: paleMetaColor, sent: .rcvd1, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy)
-                        ciMetaText(meta, chatTTL: ttl, encrypted: encrypted, color: paleMetaColor, sent: .rcvd2, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy)
+                        ciMetaText(meta, chatTTL: ttl, encrypted: encrypted, color: paleMetaColor, sent: .rcvd1, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy, showTimesamp: showTimestamp)
+                        ciMetaText(meta, chatTTL: ttl, encrypted: encrypted, color: paleMetaColor, sent: .rcvd2, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy, showTimesamp: showTimestamp)
                     }
                 }
             default:
-                ciMetaText(meta, chatTTL: ttl, encrypted: encrypted, color: metaColor, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy)
+                ciMetaText(meta, chatTTL: ttl, encrypted: encrypted, color: metaColor, showStatus: showStatus, showEdited: showEdited, showViaProxy: showSentViaProxy, showTimesamp: showTimestamp)
             }
         }
     }
@@ -69,7 +70,8 @@ func ciMetaText(
     sent: SentCheckmark? = nil,
     showStatus: Bool = true,
     showEdited: Bool = true,
-    showViaProxy: Bool
+    showViaProxy: Bool,
+    showTimesamp: Bool
 ) -> Text {
     var r = Text("")
     if showEdited, meta.itemEdited {
@@ -105,7 +107,9 @@ func ciMetaText(
     if let enc = encrypted {
         r = r + statusIconText(enc ? "lock" : "lock.open", color) + Text(" ")
     }
-    r = r + meta.timestampText.foregroundColor(color)
+    if showTimesamp {
+        r = r + meta.timestampText.foregroundColor(color)
+    }
     return r.font(.caption)
 }
 

apps/ios/Shared/Views/Chat/ChatItem/CIRcvDecryptionError.swift

@@ -15,6 +15,7 @@ struct CIRcvDecryptionError: View {
     @EnvironmentObject var m: ChatModel
     @EnvironmentObject var theme: AppTheme
     @ObservedObject var chat: Chat
+    @Environment(\.showTimestamp) var showTimestamp
     var msgDecryptError: MsgDecryptError
     var msgCount: UInt32
     var chatItem: ChatItem
@@ -68,37 +69,41 @@ struct CIRcvDecryptionError: View {
     }
 
     @ViewBuilder private func viewBody() -> some View {
-        if case let .direct(contact) = chat.chatInfo,
-           let contactStats = contact.activeConn?.connectionStats {
-            if contactStats.ratchetSyncAllowed {
-                decryptionErrorItemFixButton(syncSupported: true) {
-                    alert = .syncAllowedAlert { syncContactConnection(contact) }
+        Group {
+            if case let .direct(contact) = chat.chatInfo,
+               let contactStats = contact.activeConn?.connectionStats {
+                if contactStats.ratchetSyncAllowed {
+                    decryptionErrorItemFixButton(syncSupported: true) {
+                        alert = .syncAllowedAlert { syncContactConnection(contact) }
+                    }
+                } else if !contactStats.ratchetSyncSupported {
+                    decryptionErrorItemFixButton(syncSupported: false) {
+                        alert = .syncNotSupportedContactAlert
+                    }
+                } else {
+                    basicDecryptionErrorItem()
                 }
-            } else if !contactStats.ratchetSyncSupported {
-                decryptionErrorItemFixButton(syncSupported: false) {
-                    alert = .syncNotSupportedContactAlert
+            } else if case let .group(groupInfo) = chat.chatInfo,
+                      case let .groupRcv(groupMember) = chatItem.chatDir,
+                      let mem = m.getGroupMember(groupMember.groupMemberId),
+                      let memberStats = mem.wrapped.activeConn?.connectionStats {
+                if memberStats.ratchetSyncAllowed {
+                    decryptionErrorItemFixButton(syncSupported: true) {
+                        alert = .syncAllowedAlert { syncMemberConnection(groupInfo, groupMember) }
+                    }
+                } else if !memberStats.ratchetSyncSupported {
+                    decryptionErrorItemFixButton(syncSupported: false) {
+                        alert = .syncNotSupportedMemberAlert
+                    }
+                } else {
+                    basicDecryptionErrorItem()
                 }
             } else {
                 basicDecryptionErrorItem()
             }
-        } else if case let .group(groupInfo) = chat.chatInfo,
-                  case let .groupRcv(groupMember) = chatItem.chatDir,
-                  let mem = m.getGroupMember(groupMember.groupMemberId),
-                  let memberStats = mem.wrapped.activeConn?.connectionStats {
-            if memberStats.ratchetSyncAllowed {
-                decryptionErrorItemFixButton(syncSupported: true) {
-                    alert = .syncAllowedAlert { syncMemberConnection(groupInfo, groupMember) }
-                }
-            } else if !memberStats.ratchetSyncSupported {
-                decryptionErrorItemFixButton(syncSupported: false) {
-                    alert = .syncNotSupportedMemberAlert
-                }
-            } else {
-                basicDecryptionErrorItem()
-            }
-        } else {
-            basicDecryptionErrorItem()
         }
+        .modifier(ChatTailPadding(chatItem: chatItem))
+        .background(Color(uiColor: .tertiarySystemGroupedBackground))
     }
 
     private func basicDecryptionErrorItem() -> some View {
@@ -122,7 +127,7 @@ struct CIRcvDecryptionError: View {
                         .foregroundColor(syncSupported ? theme.colors.primary : theme.colors.secondary)
                         .font(.callout)
                     + Text("   ")
-                    + ciMetaText(chatItem.meta, chatTTL: nil, encrypted: nil, transparent: true, showViaProxy: showSentViaProxy)
+                    + ciMetaText(chatItem.meta, chatTTL: nil, encrypted: nil, transparent: true, showViaProxy: showSentViaProxy, showTimesamp: showTimestamp)
                 )
             }
             .padding(.horizontal, 12)
@@ -131,7 +136,6 @@ struct CIRcvDecryptionError: View {
         }
         .onTapGesture(perform: { onClick() })
         .padding(.vertical, 6)
-        .background(Color(uiColor: .tertiarySystemGroupedBackground))
         .textSelection(.disabled)
     }
 
@@ -142,7 +146,7 @@ struct CIRcvDecryptionError: View {
                     .foregroundColor(.red)
                     .italic()
                 + Text("   ")
-                + ciMetaText(chatItem.meta, chatTTL: nil, encrypted: nil, transparent: true, showViaProxy: showSentViaProxy)
+                + ciMetaText(chatItem.meta, chatTTL: nil, encrypted: nil, transparent: true, showViaProxy: showSentViaProxy, showTimesamp: showTimestamp)
             }
             .padding(.horizontal, 12)
             CIMetaView(chat: chat, chatItem: chatItem, metaColor: theme.colors.secondary)
@@ -150,7 +154,6 @@ struct CIRcvDecryptionError: View {
         }
         .onTapGesture(perform: { onClick() })
         .padding(.vertical, 6)
-        .background(Color(uiColor: .tertiarySystemGroupedBackground))
         .textSelection(.disabled)
     }
 

apps/ios/Shared/Views/Chat/ChatItem/FramedItemView.swift

@@ -72,6 +72,7 @@ struct FramedItemView: View {
                     .accessibilityLabel("")
             }
         }
+            .modifier(ChatTailPadding(chatItem: chatItem))
             .background(chatItemFrameColorMaybeImageOrVideo(chatItem, theme))
             .onPreferenceChange(DetermineWidth.Key.self) { msgWidth = $0 }
 

apps/ios/Shared/Views/Chat/ChatItem/IntegrityErrorItemView.swift

@@ -69,6 +69,7 @@ struct CIMsgError: View {
         }
         .padding(.leading, 12)
         .padding(.vertical, 6)
+        .modifier(ChatTailPadding(chatItem: chatItem))
         .background(Color(uiColor: .tertiarySystemGroupedBackground))
         .textSelection(.disabled)
         .onTapGesture(perform: onTap)

apps/ios/Shared/Views/Chat/ChatItem/MarkedDeletedItemView.swift

@@ -22,6 +22,7 @@ struct MarkedDeletedItemView: View {
         .foregroundColor(theme.colors.secondary)
         .padding(.horizontal, 12)
         .padding(.vertical, 6)
+        .modifier(ChatTailPadding(chatItem: chatItem))
         .background(chatItemFrameColor(chatItem, theme))
         .textSelection(.disabled)
     }

apps/ios/Shared/Views/Chat/ChatItem/MsgContentView.swift

@@ -26,6 +26,7 @@ private func typing(_ w: Font.Weight = .light) -> Text {
 
 struct MsgContentView: View {
     @ObservedObject var chat: Chat
+    @Environment(\.showTimestamp) var showTimestamp
     @EnvironmentObject var theme: AppTheme
     var text: String
     var formattedText: [FormattedText]? = nil
@@ -84,7 +85,7 @@ struct MsgContentView: View {
     }
 
     private func reserveSpaceForMeta(_ mt: CIMeta) -> Text {
-        (rightToLeft ? Text("\n") : Text("   ")) + ciMetaText(mt, chatTTL: chat.chatInfo.timedMessagesTTL, encrypted: nil, transparent: true, showViaProxy: showSentViaProxy)
+        (rightToLeft ? Text("\n") : Text("   ")) + ciMetaText(mt, chatTTL: chat.chatInfo.timedMessagesTTL, encrypted: nil, transparent: true, showViaProxy: showSentViaProxy, showTimesamp: showTimestamp)
     }
 }
 

apps/ios/Shared/Views/Chat/ChatItemView.swift

@@ -9,9 +9,21 @@
 import SwiftUI
 import SimpleXChat
 
+extension EnvironmentValues {
+    struct ShowTimestamp: EnvironmentKey {
+        static let defaultValue: Bool = true
+    }
+
+    var showTimestamp: Bool {
+        get { self[ShowTimestamp.self] }
+        set { self[ShowTimestamp.self] = newValue }
+    }
+}
+
 struct ChatItemView: View {
     @ObservedObject var chat: Chat
     @EnvironmentObject var theme: AppTheme
+    @Environment(\.showTimestamp) var showTimestamp
     var chatItem: ChatItem
     var maxWidth: CGFloat = .infinity
     @Binding var revealed: Bool

apps/ios/Shared/Views/Chat/ChatView.swift

@@ -696,6 +696,7 @@ struct ChatView: View {
         @EnvironmentObject var m: ChatModel
         @EnvironmentObject var theme: AppTheme
         @Binding @ObservedObject var chat: Chat
+        @ObservedObject var dummyModel: ChatItemDummyModel = .shared
         let chatItem: ChatItem
         let maxWidth: CGFloat
         @Binding var composeState: ComposeState
@@ -716,31 +717,53 @@ struct ChatView: View {
 
         var revealed: Bool { chatItem == revealedChatItem }
 
+        struct TimeSeparation {
+            let isTimestampShown: Bool
+            let isGapLarge: Bool
+
+            init(for chatItem: ChatItem, at index: Int?) {
+                let im = ItemsModel.shared
+                if let index, index > 0 && !im.reversedChatItems.isEmpty {
+                    let nextItem = im.reversedChatItems[index - 1]
+                    isGapLarge = nextItem.chatDir != chatItem.chatDir ||
+                        nextItem.meta.createdAt.timeIntervalSince(chatItem.meta.createdAt) > 30
+                    isTimestampShown = isGapLarge ||
+                        formatTimestampText(chatItem.meta.createdAt) != formatTimestampText(nextItem.meta.createdAt)
+                } else {
+                    isTimestampShown = true
+                    isGapLarge = true
+                }
+            }
+        }
+
         var body: some View {
             let (currIndex, _) = m.getNextChatItem(chatItem)
             let ciCategory = chatItem.mergeCategory
             let (prevHidden, prevItem) = m.getPrevShownChatItem(currIndex, ciCategory)
             let range = itemsRange(currIndex, prevHidden)
+            let timeSeparation = TimeSeparation(for: chatItem, at: currIndex)
             let im = ItemsModel.shared
             Group {
                 if revealed, let range = range {
                     let items = Array(zip(Array(range), im.reversedChatItems[range]))
-                    ForEach(items.reversed(), id: \.1.viewId) { (i, ci) in
-                        let prev = i == prevHidden ? prevItem : im.reversedChatItems[i + 1]
-                        chatItemView(ci, nil, prev)
-                        .overlay {
-                            if let selected = selectedChatItems, ci.canBeDeletedForSelf {
-                                Color.clear
-                                    .contentShape(Rectangle())
-                                    .onTapGesture {
-                                        let checked = selected.contains(ci.id)
-                                        selectUnselectChatItem(select: !checked, ci)
+                    VStack(spacing: 0) {
+                        ForEach(items.reversed(), id: \.1.viewId) { (i: Int, ci: ChatItem) in
+                            let prev = i == prevHidden ? prevItem : im.reversedChatItems[i + 1]
+                            chatItemView(ci, nil, prev, TimeSeparation(for: ci, at: i))
+                                .overlay {
+                                    if let selected = selectedChatItems, ci.canBeDeletedForSelf {
+                                        Color.clear
+                                            .contentShape(Rectangle())
+                                            .onTapGesture {
+                                                let checked = selected.contains(ci.id)
+                                                selectUnselectChatItem(select: !checked, ci)
+                                            }
                                     }
-                            }
+                                }
                         }
                     }
                 } else {
-                    chatItemView(chatItem, range, prevItem)
+                    chatItemView(chatItem, range, prevItem, timeSeparation)
                     .overlay {
                         if let selected = selectedChatItems, chatItem.canBeDeletedForSelf {
                             Color.clear
@@ -791,7 +814,8 @@ struct ChatView: View {
             }
         }
 
-        @ViewBuilder func chatItemView(_ ci: ChatItem, _ range: ClosedRange<Int>?, _ prevItem: ChatItem?) -> some View {
+        @ViewBuilder func chatItemView(_ ci: ChatItem, _ range: ClosedRange<Int>?, _ prevItem: ChatItem?, _ timeSeparation: TimeSeparation) -> some View {
+            let bottomPadding: Double = timeSeparation.isGapLarge ? 6 : 2
             if case let .groupRcv(member) = ci.chatDir,
                case let .group(groupInfo) = chat.chatInfo {
                 let (prevMember, memCount): (GroupMember?, Int) =
@@ -833,11 +857,11 @@ struct ChatView: View {
                                             }
                                         }
                                     }
-                                chatItemWithMenu(ci, range, maxWidth)
+                                chatItemWithMenu(ci, range, maxWidth, timeSeparation)
                             }
                         }
                     }
-                    .padding(.bottom, 5)
+                    .padding(.bottom, bottomPadding)
                     .padding(.trailing)
                     .padding(.leading, 12)
                 } else {
@@ -846,11 +870,11 @@ struct ChatView: View {
                             SelectedChatItem(ciId: ci.id, selectedChatItems: $selectedChatItems)
                                 .padding(.leading, 12)
                         }
-                        chatItemWithMenu(ci, range, maxWidth)
+                        chatItemWithMenu(ci, range, maxWidth, timeSeparation)
                             .padding(.trailing)
                             .padding(.leading, memberImageSize + 8 + 12)
                     }
-                    .padding(.bottom, 5)
+                    .padding(.bottom, bottomPadding)
                 }
             } else {
                 HStack(alignment: .center, spacing: 0) {
@@ -863,10 +887,10 @@ struct ChatView: View {
                                 .padding(.leading)
                         }
                     }
-                    chatItemWithMenu(ci, range, maxWidth)
+                    chatItemWithMenu(ci, range, maxWidth, timeSeparation)
                         .padding(.horizontal)
                 }
-                .padding(.bottom, 5)
+                .padding(.bottom, bottomPadding)
             }
         }
 
@@ -881,7 +905,7 @@ struct ChatView: View {
             }
         }
 
-        @ViewBuilder func chatItemWithMenu(_ ci: ChatItem, _ range: ClosedRange<Int>?, _ maxWidth: CGFloat) -> some View {
+        @ViewBuilder func chatItemWithMenu(_ ci: ChatItem, _ range: ClosedRange<Int>?, _ maxWidth: CGFloat, _ timeSeparation: TimeSeparation) -> some View {
             let alignment: Alignment = ci.chatDir.sent ? .trailing : .leading
             VStack(alignment: alignment.horizontal, spacing: 3) {
                 ChatItemView(
@@ -891,7 +915,8 @@ struct ChatView: View {
                     revealed: .constant(revealed),
                     allowMenu: $allowMenu
                 )
-                .modifier(ChatItemClipped(ci))
+                .environment(\.showTimestamp, timeSeparation.isTimestampShown)
+                .modifier(ChatItemClipped(ci, isTailVisible: timeSeparation.isGapLarge))
                 .contextMenu { menu(ci, range, live: composeState.liveMessage != nil) }
                 .accessibilityLabel("")
                 if ci.content.msgContent != nil && (ci.meta.itemDeleted == nil || revealed) && ci.reactions.count > 0 {

apps/ios/Shared/Views/Helpers/ChatItemClipShape.swift

@@ -14,55 +14,150 @@ import SimpleXChat
 /// Supports [Dynamic Type](https://developer.apple.com/documentation/uikit/uifont/scaling_fonts_automatically)
 /// by retaining pill shape, even when ``ChatItem``'s height is less that twice its corner radius
 struct ChatItemClipped: ViewModifier {
-    struct ClipShape: Shape {
-        let maxCornerRadius: Double
-        
-        func path(in rect: CGRect) -> Path {
-            Path(
-                roundedRect: rect,
-                cornerRadius: min((rect.height / 2), maxCornerRadius), 
-                style: .circular
-            )
+    @AppStorage(DEFAULT_CHAT_ITEM_ROUNDNESS) private var roundness = defaultChatItemRoundness
+    @AppStorage(DEFAULT_CHAT_ITEM_TAIL) private var isTailEnabled = true
+
+    let chatItem: ChatItem?
+    let isTailVisible: Bool
+
+    init() {
+        chatItem = nil
+        isTailVisible = false
+    }
+
+    init(_ chatItem: ChatItem, isTailVisible: Bool) {
+        self.chatItem = chatItem
+        self.isTailVisible = isTailVisible
+    }
+
+    fileprivate func itemShape() -> ChatItemShape {
+        if let chatItem {
+            switch chatItem.content {
+            case
+                .sndMsgContent,
+                .rcvMsgContent,
+                .rcvDecryptionError,
+                .rcvGroupInvitation,
+                .sndGroupInvitation,
+                .sndDeleted,
+                .rcvDeleted,
+                .rcvIntegrityError,
+                .sndModerated,
+                .rcvModerated,
+                .rcvBlocked,
+                .invalidJSON: isTailEnabled
+                ? .bubble(
+                    padding: chatItem.chatDir.sent ? .trailing : .leading,
+                    isTailVisible: Self.hidesTail(chatItem.content.msgContent)
+                    ? false
+                    : isTailVisible
+                )
+                : .roundRect(maxRadius: ChatBubble.maxRadius)
+            default: .roundRect(maxRadius: 8)
+            }
+        } else {
+            .roundRect(maxRadius: 8)
         }
     }
     
-    init() {
-        clipShape = ClipShape(
-            maxCornerRadius: 18
-        )
+    // Tail is hidden for images and video without any text
+    private static func hidesTail(_ msgContent: MsgContent?) -> Bool {
+        if let msgContent, msgContent.isImageOrVideo && msgContent.text.isEmpty {
+            true
+        } else {
+            false
+        }
     }
-    
-    init(_ chatItem: ChatItem) {
-        clipShape = ClipShape(
-            maxCornerRadius: {
-                switch chatItem.content {
-                case 
-                    .sndMsgContent, 
-                    .rcvMsgContent,
-                    .rcvDecryptionError,
-                    .rcvGroupInvitation,
-                    .sndGroupInvitation,
-                    .sndDeleted, 
-                    .rcvDeleted,
-                    .rcvIntegrityError,
-                    .sndModerated, 
-                    .rcvModerated, 
-                    .rcvBlocked,
-                    .invalidJSON: 18
-                default: 8
-                }
-            }()
-        )
-    }
-    
-    private let clipShape: ClipShape
-    
+
     func body(content: Content) -> some View {
+        let shape = ChatBubble(roundness: roundness, shapePath: itemShape())
         content
-            .contentShape(.dragPreview, clipShape)
-            .contentShape(.contextMenuPreview, clipShape)
-            .clipShape(clipShape)
+            .contentShape(.dragPreview, shape)
+            .contentShape(.contextMenuPreview, shape)
+            .clipShape(shape)
     }
 }
 
+struct ChatTailPadding: ViewModifier {
+    @AppStorage(DEFAULT_CHAT_ITEM_TAIL) private var tailEnabled = true
+    let chatItem: ChatItem
 
+    func body(content: Content) -> some View {
+        if tailEnabled {
+            content.padding(
+                chatItem.chatDir.sent ? .trailing : .leading,
+                ChatBubble.tailSize
+            )
+        } else {
+            content
+        }
+    }
+}
+
+struct ChatBubble: Shape {
+    static let tailSize: Double = 8
+    static let maxRadius: Double = 16
+    fileprivate let roundness: Double
+    fileprivate let shapePath: ChatItemShape
+
+    func path(in rect: CGRect) -> Path {
+        switch shapePath {
+        case .bubble(let padding, let isTailVisible):
+            let rMax = min(Self.maxRadius, min(rect.width, rect.height) / 2)
+            let r = roundness * rMax
+            let tailHeight = rect.height - (Self.tailSize + (rMax - Self.tailSize) * roundness)
+            var path = Path()
+            path.addArc(
+                center: CGPoint(x: r + Self.tailSize, y: r),
+                radius: r,
+                startAngle: .degrees(270),
+                endAngle: .degrees(180),
+                clockwise: true
+            )
+            if isTailVisible {
+                path.addLine(
+                    to: CGPoint(x: Self.tailSize, y: tailHeight)
+                )
+                path.addQuadCurve(
+                    to: CGPoint(x: 0, y: rect.height),
+                    control: CGPoint(x: Self.tailSize, y: tailHeight + r * 0.64)
+                )
+            } else {
+                path.addArc(
+                    center: CGPoint(x: r + Self.tailSize, y: rect.height - r),
+                    radius: r,
+                    startAngle: .degrees(180),
+                    endAngle: .degrees(90),
+                    clockwise: true
+                )
+            }
+            path.addArc(
+                center: CGPoint(x: rect.width - r, y: rect.height - r),
+                radius: r,
+                startAngle: .degrees(90),
+                endAngle: .degrees(0),
+                clockwise: true
+            )
+            path.addArc(
+                center: CGPoint(x: rect.width - r, y: r),
+                radius: r,
+                startAngle: .degrees(0),
+                endAngle: .degrees(270),
+                clockwise: true
+            )
+            return switch padding {
+            case .leading: path
+            case .trailing: path
+                    .scale(x: -1, y: 1, anchor: .center)
+                    .path(in: rect)
+            }
+        case let .roundRect(radius):
+            return Path(roundedRect: rect, cornerRadius: radius * roundness)
+        }
+    }
+}
+
+fileprivate enum ChatItemShape {
+    case bubble(padding: HorizontalEdge, isTailVisible: Bool)
+    case roundRect(maxRadius: Double)
+}

apps/ios/Shared/Views/UserSettings/AppearanceSettings.swift

@@ -33,6 +33,8 @@ struct AppearanceSettings: View {
     }()
     @State private var darkModeTheme: String = UserDefaults.standard.string(forKey: DEFAULT_SYSTEM_DARK_THEME) ?? DefaultTheme.DARK.themeName
     @AppStorage(DEFAULT_PROFILE_IMAGE_CORNER_RADIUS) private var profileImageCornerRadius = defaultProfileImageCorner
+    @AppStorage(DEFAULT_CHAT_ITEM_ROUNDNESS) private var chatItemRoundness = defaultChatItemRoundness
+    @AppStorage(DEFAULT_CHAT_ITEM_TAIL) private var chatItemTail = true
     @AppStorage(GROUP_DEFAULT_ONE_HAND_UI, store: groupDefaults) private var oneHandUI = true
     @AppStorage(DEFAULT_TOOLBAR_MATERIAL) private var toolbarMaterial = ToolbarMaterial.defaultMaterial
 
@@ -179,6 +181,14 @@ struct AppearanceSettings: View {
                     }
                 }
 
+                Section(header: Text("Messages").foregroundColor(theme.colors.secondary)) {
+                    HStack {
+                        Text("Roundness")
+                        Slider(value: $chatItemRoundness, in: 0...1, step: 0.1)
+                    }
+                    Toggle("Tail", isOn: $chatItemTail)
+                }
+
                 Section(header: Text("Profile images").foregroundColor(theme.colors.secondary)) {
                     HStack(spacing: 16) {
                         if let img = m.currentUser?.image, img != "" {
@@ -358,13 +368,13 @@ struct ChatThemePreview: View {
                 let bob = ChatItem.getSample(2, CIDirection.directSnd, Date.now, NSLocalizedString("Good morning!", comment: "message preview"), quotedItem: CIQuote.getSample(alice.id, alice.meta.itemTs, alice.content.text, chatDir: alice.chatDir))
                 HStack {
                     ChatItemView(chat: Chat.sampleData, chatItem: alice, revealed: Binding.constant(false))
-                        .modifier(ChatItemClipped())
+                        .modifier(ChatItemClipped(alice, isTailVisible: true))
                     Spacer()
                 }
                 HStack {
                     Spacer()
                     ChatItemView(chat: Chat.sampleData, chatItem: bob, revealed: Binding.constant(false))
-                        .modifier(ChatItemClipped())
+                        .modifier(ChatItemClipped(bob, isTailVisible: true))
                         .frame(alignment: .trailing)
                 }
             } else {

apps/ios/Shared/Views/UserSettings/SettingsView.swift

@@ -47,6 +47,8 @@ let DEFAULT_ACCENT_COLOR_GREEN = "accentColorGreen" // deprecated, only used for
 let DEFAULT_ACCENT_COLOR_BLUE = "accentColorBlue" // deprecated, only used for migration
 let DEFAULT_USER_INTERFACE_STYLE = "userInterfaceStyle" // deprecated, only used for migration
 let DEFAULT_PROFILE_IMAGE_CORNER_RADIUS = "profileImageCornerRadius"
+let DEFAULT_CHAT_ITEM_ROUNDNESS = "chatItemRoundness"
+let DEFAULT_CHAT_ITEM_TAIL = "chatItemTail"
 let DEFAULT_ONE_HAND_UI_CARD_SHOWN = "oneHandUICardShown"
 let DEFAULT_TOOLBAR_MATERIAL = "toolbarMaterial"
 let DEFAULT_CONNECT_VIA_LINK_TAB = "connectViaLinkTab"
@@ -98,6 +100,8 @@ let appDefaults: [String: Any] = [
     DEFAULT_DEVELOPER_TOOLS: false,
     DEFAULT_ENCRYPTION_STARTED: false,
     DEFAULT_PROFILE_IMAGE_CORNER_RADIUS: defaultProfileImageCorner,
+    DEFAULT_CHAT_ITEM_ROUNDNESS: defaultChatItemRoundness,
+    DEFAULT_CHAT_ITEM_TAIL: true,
     DEFAULT_ONE_HAND_UI_CARD_SHOWN: false,
     DEFAULT_TOOLBAR_MATERIAL: ToolbarMaterial.defaultMaterial,
     DEFAULT_CONNECT_VIA_LINK_TAB: ConnectViaLinkTab.scan.rawValue,

apps/ios/SimpleXChat/AppGroup.swift

@@ -13,6 +13,8 @@ public let appSuspendTimeout: Int = 15 // seconds
 
 public let defaultProfileImageCorner: Double = 22.5
 
+public let defaultChatItemRoundness: Double = 0.8
+
 let GROUP_DEFAULT_APP_STATE = "appState"
 let GROUP_DEFAULT_NSE_STATE = "nseState"
 let GROUP_DEFAULT_SE_STATE = "seState"

apps/ios/SimpleXChat/ChatTypes.swift

@@ -2762,7 +2762,7 @@ let msgTimeFormat = Date.FormatStyle.dateTime.hour().minute()
 let msgDateFormat = Date.FormatStyle.dateTime.day(.twoDigits).month(.twoDigits)
 
 public func formatTimestampText(_ date: Date) -> Text {
-    return Text(date, format: recent(date) ? msgTimeFormat : msgDateFormat)
+    Text(verbatim: date.formatted(recent(date) ? msgTimeFormat : msgDateFormat))
 }
 
 private func recent(_ date: Date) -> Bool {