Update

Author: Isaac

submodules/TelegramUI/Components/Stories/StoryContainerScreen/Sources/StoryContentLiveChatComponent.swift

@@ -128,6 +128,7 @@ final class StoryContentLiveChatComponent: Component {
         private let pinnedBar = ComponentView<Empty>()
 
         private let listState = AsyncListComponent.ExternalState()
+        private var isScrollToBottomScheduled: Bool = false
         private let list = ComponentView<Empty>()
         private let listShadowView: UIView
 
@@ -536,6 +537,10 @@ final class StoryContentLiveChatComponent: Component {
             }
         }
 
+        func scheduleScrollLiveChatToBottom() {
+            self.isScrollToBottomScheduled = true
+        }
+        
         func update(component: StoryContentLiveChatComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: ComponentTransition) -> CGSize {
             self.isUpdating = true
             defer {
@@ -727,6 +732,13 @@ final class StoryContentLiveChatComponent: Component {
                 listTransition = listTransition.withAnimation(.none)
             }
 
+            if self.isScrollToBottomScheduled {
+                self.isScrollToBottomScheduled = false
+                if let firstItem = listItems.first {
+                    self.listState.resetScrolling(id: firstItem.id)
+                }
+            }
+            
             let _ = self.list.update(
                 transition: listTransition,
                 component: AnyComponent(AsyncListComponent(

submodules/TelegramUI/Components/Stories/StoryContainerScreen/Sources/StoryItemContentComponent.swift

@@ -37,12 +37,13 @@ final class StoryItemContentComponent: Component {
     let baseRate: Double
     let isVideoBuffering: Bool
     let isCurrent: Bool
+    let isUIHidden: Bool
     let preferHighQuality: Bool
     let isEmbeddedInCamera: Bool
     let activateReaction: (UIView, MessageReaction.Reaction) -> Void
     let controller: () -> ViewController?
 
-    init(context: AccountContext, strings: PresentationStrings, peer: EnginePeer, item: EngineStoryItem, availableReactions: StoryAvailableReactions?, entityFiles: [MediaId: TelegramMediaFile], audioMode: StoryContentItem.AudioMode, baseRate: Double, isVideoBuffering: Bool, isCurrent: Bool, preferHighQuality: Bool, isEmbeddedInCamera: Bool, activateReaction: @escaping (UIView, MessageReaction.Reaction) -> Void, controller: @escaping () -> ViewController?) {
+    init(context: AccountContext, strings: PresentationStrings, peer: EnginePeer, item: EngineStoryItem, availableReactions: StoryAvailableReactions?, entityFiles: [MediaId: TelegramMediaFile], audioMode: StoryContentItem.AudioMode, baseRate: Double, isVideoBuffering: Bool, isCurrent: Bool, isUIHidden: Bool, preferHighQuality: Bool, isEmbeddedInCamera: Bool, activateReaction: @escaping (UIView, MessageReaction.Reaction) -> Void, controller: @escaping () -> ViewController?) {
 		self.context = context
         self.strings = strings
         self.peer = peer
@@ -53,6 +54,7 @@ final class StoryItemContentComponent: Component {
         self.baseRate = baseRate
         self.isVideoBuffering = isVideoBuffering
         self.isCurrent = isCurrent
+        self.isUIHidden = isUIHidden
         self.preferHighQuality = preferHighQuality
         self.isEmbeddedInCamera = isEmbeddedInCamera
         self.activateReaction = activateReaction
@@ -87,6 +89,9 @@ final class StoryItemContentComponent: Component {
         if lhs.isCurrent != rhs.isCurrent {
             return false
         }
+        if lhs.isUIHidden != rhs.isUIHidden {
+            return false
+        }
         if lhs.isEmbeddedInCamera != rhs.isEmbeddedInCamera {
             return false
         }
@@ -805,6 +810,13 @@ final class StoryItemContentComponent: Component {
                 restorePictureInPictureImpl = dismissController()
             })
         }
+        
+        func scheduleScrollLiveChatToBottom() {
+            guard let liveChatView = self.liveChat?.view as? StoryContentLiveChatComponent.View else {
+                return
+            }
+            liveChatView.scheduleScrollLiveChatToBottom()
+        }
 
         func update(component: StoryItemContentComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<StoryContentItem.Environment>, transition: ComponentTransition) -> CGSize {
             self.isUpdating = true
@@ -1018,9 +1030,11 @@ final class StoryItemContentComponent: Component {
                 if let liveChatView = liveChat.view {
                     if liveChatView.superview == nil {
                         liveChat.parentState = state
+                        liveChatView.layer.allowsGroupOpacity = true
                         self.insertSubview(liveChatView, aboveSubview: self.imageView)
                     }
                     mediaStreamTransition.setFrame(view: liveChatView, frame: liveChatFrame)
+                    mediaStreamTransition.setAlpha(view: liveChatView, alpha: component.isUIHidden ? 0.0 : 1.0)
                 }
 
                 if case .rtc = liveStream.kind, component.isEmbeddedInCamera {

submodules/TelegramUI/Components/Stories/StoryContainerScreen/Sources/StoryItemSetContainerComponent.swift

@@ -1644,6 +1644,7 @@ public final class StoryItemSetContainerComponent: Component {
                             baseRate: component.storyItemSharedState.baseRate,
                             isVideoBuffering: visibleItem.isBuffering,
                             isCurrent: index == centralIndex,
+                            isUIHidden: component.hideUI,
                             preferHighQuality: component.slice.additionalPeerData.preferHighQualityStories,
                             isEmbeddedInCamera: component.isEmbeddedInCamera,
                             activateReaction: { [weak self] reactionView, reaction in

submodules/TelegramUI/Components/Stories/StoryContainerScreen/Sources/StoryItemSetContainerViewSendMessage.swift

@@ -764,6 +764,7 @@ final class StoryItemSetContainerSendMessage: @unchecked(Sendable) {
                                 if !(visibleItemView.liveChatState?.isExpanded ?? true) {
                                     visibleItemView.toggleLiveChatExpanded()
                                 }
+                                visibleItemView.scheduleScrollLiveChatToBottom()
                             }
 
                             let entities = generateChatInputTextEntities(text)