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>
Rich messages (RichTextMessageAttribute, text == "") are copyable as
markdown two ways: the context-menu Copy action copies the whole
message, and a text selection inside the rich-data bubble copies just
the selected range. Both reconstruct markdown mirroring the edit
round-trip (markdownStringFromInstantPage).
Implements the full RichText entity case set
(mention/hashtag/cashtag/bot-command/bank-card/auto url/email/phone) with
tap interaction, the InstantPage -> markdown inverse converter and edit
round-trip, markdown-context stamping during V2 layout
(InstantPageMarkdownBlockContext: heading level, list/code/table/quote
depth), partial-selection markdown emission
(InstantPageMultiTextAdapter.markdownForRange), and numerous converter
edge-case fixes (tables, links, fenced code, blockquote line coalescing,
compact nested >> markers).
CLAUDE.md documents the feature; the spec/plan scratch docs generated
during development are not committed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Design and plan, then implementation: include the details title in
selectableTextItems, restore V2 text selection in the rich bubble,
drop the InstantPageMultiTextAdapter init parameter-name split, and
split LinkHighlightingNode modern-path groups on disjoint rects.
Also includes the IP V2 inline-formula baseline alignment design doc.
Adds drag-handle text selection driven by TextSelectionNode. Exposes
attributedString and selection helpers on InstantPage text items, and
introduces a multi-text adapter aggregating items as a TextNodeProtocol.
Gates selection actions on reply-options and fixes highlight z-order.
