Always show Translate in public channels for some languages

submodules/TelegramUI/Sources/ChatController.swift

@@ -2940,7 +2940,12 @@ public final class ChatControllerImpl: TelegramBaseController, ChatController, G
                         translationSettings = TranslationSettings.defaultSettings
                     }
                     
-                    let (_, language) = canTranslateText(context: context, text: text.string, showTranslate: translationSettings.showTranslate, ignoredLanguages: translationSettings.ignoredLanguages)
+                    var showTranslateIfTopical = false
+                    if let peer = strongSelf.presentationInterfaceState.renderedPeer?.chatMainPeer as? TelegramChannel, case .broadcast = peer.info, !(peer.addressName ?? "").isEmpty {
+                        showTranslateIfTopical = true
+                    }
+                    
+                    let (_, language) = canTranslateText(context: context, text: text.string, showTranslate: translationSettings.showTranslate, showTranslateIfTopical: showTranslateIfTopical, ignoredLanguages: translationSettings.ignoredLanguages)
                     
                     let controller = TranslateScreen(context: context, text: text.string, fromLanguage: language)
                     controller.pushController = { [weak self] c in

submodules/TelegramUI/Sources/ChatInterfaceStateContextMenus.swift

@@ -883,7 +883,12 @@ func contextMenuForChatPresentationInterfaceState(chatPresentationInterfaceState
                     })))
                 }
                 
-                let (canTranslate, _) = canTranslateText(context: context, text: messageText, showTranslate: translationSettings.showTranslate, ignoredLanguages: translationSettings.ignoredLanguages)
+                var showTranslateIfTopical = false
+                if let peer = chatPresentationInterfaceState.renderedPeer?.chatMainPeer as? TelegramChannel, case .broadcast = peer.info, !(peer.addressName ?? "").isEmpty {
+                    showTranslateIfTopical = true
+                }
+                
+                let (canTranslate, _) = canTranslateText(context: context, text: messageText, showTranslate: translationSettings.showTranslate, showTranslateIfTopical: showTranslateIfTopical, ignoredLanguages: translationSettings.ignoredLanguages)
                 if canTranslate {
                     actions.append(.action(ContextMenuActionItem(text: chatPresentationInterfaceState.strings.Conversation_ContextMenuTranslate, icon: { theme in
                         return generateTintedImage(image: UIImage(bundleImageName: "Chat/Context Menu/Translate"), color: theme.actionSheet.primaryTextColor)

submodules/TranslateUI/Sources/Translate.swift

@@ -141,11 +141,11 @@ public var popularTranslationLanguages = [
 @available(iOS 12.0, *)
 private let languageRecognizer = NLLanguageRecognizer()
 
-public func canTranslateText(context: AccountContext, text: String, showTranslate: Bool, ignoredLanguages: [String]?) -> (canTranslate: Bool, language: String?) {
+public func canTranslateText(context: AccountContext, text: String, showTranslate: Bool, showTranslateIfTopical: Bool = false, ignoredLanguages: [String]?) -> (canTranslate: Bool, language: String?) {
-    guard showTranslate, text.count > 0 else {
+    guard showTranslate || showTranslateIfTopical, text.count > 0 else {
         return (false, nil)
     }
-    
+
     if #available(iOS 15.0, *) {
         var dontTranslateLanguages: [String] = []
         if let ignoredLanguages = ignoredLanguages {
@@ -159,6 +159,11 @@ public func canTranslateText(context: AccountContext, text: String, showTranslat
         let hypotheses = languageRecognizer.languageHypotheses(withMaximum: 3)
         languageRecognizer.reset()
         
+        var supportedTranslationLanguages = supportedTranslationLanguages
+        if !showTranslate && showTranslateIfTopical {
+            supportedTranslationLanguages = ["uk", "ru"]
+        }
+        
         let filteredLanguages = hypotheses.filter { supportedTranslationLanguages.contains($0.key.rawValue) }.sorted(by: { $0.value > $1.value })
         if let language = filteredLanguages.first(where: { supportedTranslationLanguages.contains($0.key.rawValue) }) {
             return (!dontTranslateLanguages.contains(language.key.rawValue), language.key.rawValue)

submodules/WebUI/Sources/WebAppController.swift

@@ -502,6 +502,7 @@ public final class WebAppController: ViewController, AttachmentContainable {
         })
         
         self.navigationBar?.updateBackgroundAlpha(0.0, transition: .immediate)
+        self.updateTabBarAlpha(1.0, .immediate)
     }
         
     override public func containerLayoutUpdated(_ layout: ContainerViewLayout, transition: ContainedViewLayoutTransition) {
@@ -520,6 +521,10 @@ public final class WebAppController: ViewController, AttachmentContainable {
     public var mediaPickerContext: AttachmentMediaPickerContext? {
         return WebAppPickerContext(controller: self)
     }
+    
+    public func prepareForReuse() {
+        self.updateTabBarAlpha(1.0, .immediate)
+    }
 }
 
 final class WebAppPickerContext: AttachmentMediaPickerContext {