Localize rich-text message preview labels; split audio into voice/music

Thread PresentationStrings through RichText/InstantPageBlock/InstantPage
previewText(), replacing the hardcoded //TODO:localize placeholders
("Photo", "Fx", "Table", "Map", ...) with localized keys and reusing the
existing Message.Photo/Video/Location strings. Add RichTextPreview.Formula
("[formula]"), RichTextPreview.Table ("[table]"), and RichTextPreview.Music
("Music").

The .audio block previously rendered the wrong label (Message.Audio is
"Voice Message"). Thread InstantPage.media down so the block can resolve
media[id] as TelegramMediaFile and split: isVoice -> "Voice Message",
otherwise -> "Music", mirroring MessageContentKind's voice/music handling.

Update both previewText() call sites (MessageContentKind, ChatListItemStrings)
to pass strings, and complete the InstantPageListItem migration that was
left on the old signature.

Also remove the dead streaming-status ("Thinking...") rendering block from
ChatMessageTextBubbleContentNode (guarded by an always-false `!"".isEmpty`)
along with the now-orphaned streamingTextFrame layout machinery it fed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: isaac

Telegram/Telegram-iOS/en.lproj/Localizable.strings

@@ -16369,3 +16369,7 @@ Error: %8$@";
 "WebBrowser.Exceptions.DontOpenInApp" = "DON'T OPEN IN-APP";
 "WebBrowser.Exceptions.InAppInfo" = "These sites will still be opened in-app.";
 "WebBrowser.Exceptions.DeleteAll" = "Delete All Exceptions";
+
+"RichTextPreview.Formula" = "[formula]";
+"RichTextPreview.Table" = "[table]";
+"RichTextPreview.Music" = "Music";

submodules/ChatListUI/Sources/Node/ChatListItemStrings.swift

@@ -104,7 +104,7 @@ public func chatListItemStrings(strings: PresentationStrings, nameDisplayOrder:
         messageText = ""
         for message in messages {
             if let richText = message.richText {
-                messageText = richText.instantPage.previewText()
+                messageText = richText.instantPage.previewText(strings: strings)
                 messageEntities = []
             } else if !message.text.isEmpty {
                 messageText = message.text

submodules/TelegramStringFormatting/Sources/InstantPagePreviewText.swift

@@ -1,64 +1,64 @@
 import Foundation
+import Postbox
 import TelegramCore
+import TelegramPresentationData
 
 extension RichText {
-    public func previewText() -> String {
+    public func previewText(strings: PresentationStrings) -> String {
         switch self {
         case .empty:
             return ""
         case let .plain(value):
             return value
         case let .bold(value):
-            return value.previewText()
+            return value.previewText(strings: strings)
         case let .italic(value):
-            return value.previewText()
+            return value.previewText(strings: strings)
         case let .underline(value):
-            return value.previewText()
+            return value.previewText(strings: strings)
         case let .strikethrough(value):
-            return value.previewText()
+            return value.previewText(strings: strings)
         case let .fixed(value):
-            return value.previewText()
+            return value.previewText(strings: strings)
         case let .url(value, _, _):
-            return value.previewText()
+            return value.previewText(strings: strings)
         case let .email(value, _):
-            return value.previewText()
+            return value.previewText(strings: strings)
         case let .concat(values):
             var result = ""
             for value in values {
-                result.append(value.previewText())
+                result.append(value.previewText(strings: strings))
             }
             return result
         case let .`subscript`(value):
-            return value.previewText()
+            return value.previewText(strings: strings)
         case let .superscript(value):
-            return value.previewText()
+            return value.previewText(strings: strings)
         case let .marked(value):
-            return value.previewText()
+            return value.previewText(strings: strings)
         case let .phone(value, _):
-            return value.previewText()
+            return value.previewText(strings: strings)
         case .image:
-            //TODO:localize
-            return "Photo"
+            return strings.Message_Photo
         case let .anchor(value, _):
-            return value.previewText()
+            return value.previewText(strings: strings)
         case .formula:
-            //TODO:localize
-            return "Fx"
+            return strings.RichTextPreview_Formula
         case let .textCustomEmoji(_, alt):
             return alt
         case let .textAutoEmail(value), let .textAutoPhone(value), let .textAutoUrl(value), let .textBankCard(value), let .textBotCommand(value), let .textCashtag(value), let .textHashtag(value), let .textMention(value), let .textMentionName(value, _), let .textSpoiler(value), let .textDate(value, _, _):
-            return value.previewText()
+            return value.previewText(strings: strings)
         }
     }
 }
 
 extension InstantPageListItem {
-    public func previewText() -> String {
+    public func previewText(strings: PresentationStrings, media: [MediaId: Media]) -> String {
         switch self {
         case .unknown:
             return ""
         case let .text(text, num, checked):
-            let body = text.previewText()
+            let body = text.previewText(strings: strings)
             if let checked {
                 return "\(checked ? "☑︎" : "☐") \(body)"
             } else if let num, !num.isEmpty {
@@ -72,7 +72,7 @@ extension InstantPageListItem {
                 if !blocksText.isEmpty {
                     blocksText.append("\n")
                 }
-                blocksText.append(block.previewText())
+                blocksText.append(block.previewText(strings: strings, media: media))
             }
             if let checked {
                 return "\(checked ? "☑︎" : "☐") \(blocksText)"
@@ -86,30 +86,30 @@ extension InstantPageListItem {
 }
 
 extension InstantPageBlock {
-    public func previewText() -> String {
+    public func previewText(strings: PresentationStrings, media: [MediaId: Media]) -> String {
         switch self {
         case .unsupported:
             return ""
         case let .title(text):
-            return text.previewText()
+            return text.previewText(strings: strings)
         case let .subtitle(text):
-            return text.previewText()
+            return text.previewText(strings: strings)
         case let .authorDate(author, _):
-            return author.previewText()
+            return author.previewText(strings: strings)
         case let .header(text):
-            return text.previewText()
+            return text.previewText(strings: strings)
         case let .subheader(text):
-            return text.previewText()
+            return text.previewText(strings: strings)
         case let .heading(text, _):
-            return text.previewText()
+            return text.previewText(strings: strings)
         case .formula:
-            return "Fx"
+            return strings.RichTextPreview_Formula
         case let .paragraph(text):
-            return text.previewText()
+            return text.previewText(strings: strings)
         case let .preformatted(text, _):
-            return text.previewText()
+            return text.previewText(strings: strings)
         case let .footer(text):
-            return text.previewText()
+            return text.previewText(strings: strings)
         case .divider:
             return "\n"
         case .anchor:
@@ -120,23 +120,24 @@ extension InstantPageBlock {
                 if !result.isEmpty {
                     result.append("\n")
                 }
-                result.append(item.previewText())
+                result.append(item.previewText(strings: strings, media: media))
             }
             return result
         case let .blockQuote(blocks, caption):
-            let body = blocks.map { $0.previewText() }.joined(separator: " ")
-            return body + caption.previewText()
+            let body = blocks.map { $0.previewText(strings: strings, media: media) }.joined(separator: " ")
+            return body + caption.previewText(strings: strings)
         case let .pullQuote(text, caption):
-            return text.previewText() + caption.previewText()
+            return text.previewText(strings: strings) + caption.previewText(strings: strings)
         case .image(_, _, _, _):
-            //TODO:localize
-            return "Photo"
+            return strings.Message_Photo
         case .video(_, _, _, _):
-            //TODO:localize
-            return "Video"
-        case .audio:
-            //TODO:localize
-            return "Audio"
+            return strings.Message_Video
+        case let .audio(id, _):
+            if let file = media[id] as? TelegramMediaFile, file.isVoice {
+                return strings.Message_Audio
+            } else {
+                return strings.RichTextPreview_Music
+            }
         case .cover:
             return ""
         case .webEmbed:
@@ -154,28 +155,26 @@ extension InstantPageBlock {
         case .thinking:
             return ""
         case .table:
-            //TODO:localize
-            return "Table"
+            return strings.RichTextPreview_Table
         case .details:
             return ""
         case .relatedArticles:
             return ""
         case .map:
-            //TODO:localize
-            return "Map"
+            return strings.Message_Location
         }
     }
 }
 
 extension InstantPage {
-    public func previewText() -> String {
+    public func previewText(strings: PresentationStrings) -> String {
         let maxLength: Int = 200
         var result = ""
         for block in self.blocks {
             if !result.isEmpty {
                 result.append("\n")
             }
-            result.append(block.previewText())
+            result.append(block.previewText(strings: strings, media: self.media))
             if result.count > maxLength {
                 break
             }

submodules/TelegramStringFormatting/Sources/MessageContentKind.swift

@@ -314,7 +314,7 @@ public func messageContentKind(contentSettings: ContentSettings, message: Engine
     }
     for attribute in message.attributes {
         if let attribute = attribute as? RichTextMessageAttribute {
-            return .text(NSAttributedString(string: attribute.instantPage.previewText()))
+            return .text(NSAttributedString(string: attribute.instantPage.previewText(strings: strings)))
         }
     }
     return .text(messageTextWithAttributes(message: message))