Parse custom emoji into RichText.textCustomEmoji when sending markdown
rich messages, and round-trip them through edit, copy, and paste using a
shared tg://emoji?id=<fileId> markdown-link marker.
- Send: rewrite each customEmoji input attribute into a
[<alt>](tg://emoji?id=<fileId>) marker before the CommonMark parse, then
intercept the marker URL afterward to emit .textCustomEmoji. Only rich
messages are affected; a custom emoji alone stays on the entity path.
- Reverse: InstantPageToMarkdown (whole-message copy + edit reconstruction)
and InstantPageMultiTextAdapter (selection copy) emit the marker;
edit-load and chat paste reattach it as a live customEmoji attribute.
- Marker helpers shared in TextFormat/CustomEmojiMarkdownMarker.swift.
- Rich sends now pass inlineStickers so recipients can fetch the files.
Follow-up to verify at runtime: recipient rendering goes out with
Api.InputRichMessage.documents: nil; if recipients see only the fallback
glyph, populate documents: in apiInputRichMessage().
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
When the user long-presses Send in the main chat and the composed text passes the
same rich-markdown gate used at send time (richMarkdownAttributeIfNeeded), the
send-options preview bubble renders the message as rich InstantPage content,
crossfading from the raw text as the menu animates in. Plain text and custom chat
contents / edit previews are unchanged.
ChatSendMessageActionUI cannot depend on InstantPageUI (it closes a dependency
cycle via LocationUI -> AttachmentUI -> ... -> ChatTextInputActionButtonsNode), so
the rich view is built in TelegramUI (ChatSendMessageRichTextPreview, wrapping
InstantPageV2View + the outgoing message theme) and injected into the screen via a
new ChatSendMessageContextScreenRichTextPreview protocol, mirroring the existing
media-preview pattern. The main-chat send call site classifies the compose text
and injects the preview; MessageItemView lays it out within the send-button-bounded
bubble envelope and crossfades between the raw text and the rich layout.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
isaacandClaude Opus 4.8
Ilya Laktyushin