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>
Server-sent rich messages can arrive partial (RichMessage isPartial ->
instantPage.isComplete == false). The bubble renders the partial page with
an inline "Show more" link; tapping it fetches the full page once and
expands in place.
- RichTextMessageAttribute keeps the partial instantPage and gains an
optional fullInstantPage, filled by engine.messages.requestFullRichText
via transaction.updateMessage. The seed-config merge preserves a fetched
fullInstantPage across later server updates.
- ChatMessageRichDataBubbleContentNode: node-local, per-message expand
state (collapsed on every fresh display, even when fullInstantPage is
already cached); renders (expanded ? fullInstantPage : nil) ?? instantPage;
gates the link on !expanded && !isComplete (+ not streaming, Cloud-only,
not preview/messageOptions); expand state threaded through both layout
caches; shimmer while fetching (instant when cached); bubble grows
downward on expand via setInvertOffsetDirection.
- New localized string Chat.RichText.ShowMore; docs in
docs/instantpage-richtext.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
A details block nested inside another rendered (title + chevron) but could not
expand: its body is hosted by a fresh InstantPageV2View whose detailsTapped
closure was never wired (only the top-level view's is, by the bubble), so the
nested title's tap hit a nil closure and was dropped. Wire the body view's
detailsTapped to chain through this view's onTitleTapped, which makeItemView
already routes to the owning view's detailsTapped -> the bubble's toggle
handler; this chains up through arbitrary nesting depth.
Also make the bubble's defaultExpanded(forDetailsIndex:) recurse into expanded
bodies so a nested details whose model default is expanded toggles from the
correct state (the flat top-level scan missed nested indices).
Known pre-existing limitation (unchanged): V2 keys expansion state by a flat
DFS index, so expanding a nested details can shift sibling indices.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Render RichText.textDate (API constructor textDate(flags, text, date)) as a
locale/timezone-correct, relative-aware, tappable date inside V2 rich-message
bubbles, reusing the existing stringForEntityFormattedDate autoformatter.
- Model: add RichText.textDate(text:date:format:) with Postbox coding,
FlatBuffers schema (RichText.fbs; flatc regenerates), Equatable and plainText;
parse flags->DateTimeFormat? at the API boundary (flags==0 => nil, matching
the messageEntityFormattedDate convention) with a symmetric apiRichText()
round-trip. The new case is handled in every exhaustive RichText switch
(SyncCore, ApiUtils, InstantPageTextItem, InstantPageAnchorPath,
InstantPagePreviewText, BrowserReadability, BrowserMarkdown).
- Render: attributedStringForRichText gains an optional formatDate closure;
the V2 layout builds it from the message's strings/dateTimeFormat and threads
it to every text-building call site, formatting the timestamp and tagging the
run with TelegramTextAttributes.Date.
- Tappable: the Date attribute is added to linkSelectionRects hit-testing and
mapped in the rich bubble's entityTapContent to the existing .date tap action
(opens the date context menu).
- Live update: the V2 layout accumulates a page-wide formattedDateUpdatePeriod
(>=10s) for relative dates; the rich bubble schedules a refresh timer on it,
recreating it only when the period changes. The currentPageLayout cache is
bypassed for relative-date pages so the timer-driven relayout actually
re-formats the date.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Tapping an intra-message #fragment link in a rich-data bubble now scrolls
the chat so the matching anchor lands just below the content-area top,
expanding any enclosing collapsed <details> first. Anchors come from
server/AI-sent InstantPages (block .anchor or inline RichText.anchor); the
compose path is unchanged.
- InstantPageV2View.anchorFrame(name:) resolves an anchor's frame in the
live layout (text/codeBlock/thinking/details/table), mirroring findTextItem.
- instantPageAnchorPath(in:name:) is a pure model walk returning the
<details>-sibling-ordinal path to an anchor; its recursion set matches
exactly the containers the V2 layout flattens through layoutBlock
(.blockQuote/.cover/.list .blocks), keeping ordinals consistent with the
layout's detailsIndexCounter.
- InstantPageV2View.firstCollapsedDetails(forOrdinalPath:) maps that path to
the first not-yet-expanded details' live index (read, never reproduced).
- The rich bubble fills the two stubbed seams: getAnchorRect, and a
fragment-link route in tapActionAtPoint that drives a resolve -> expand ->
scroll state machine (pendingScrollAnchor + progress guard + a
post-relayout hook). Taps are gated off while the message streams.
Verified by the full Bazel build; runtime behavior not yet exercised.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Render and play InstantPageBlock.audio in the InstantPage V2 renderer
(rich-data message bubbles + the rich send preview), where audio was
previously an inert grey placeholder.
- New InstantPageV2AudioContentNode replicates the standard music message
bubble (ChatMessageInteractiveFileNode's music layout): a SemanticStatusNode
control (album art via playerAlbumArt + play/pause) with a download/progress
overlay, title + "duration · performer" lines, exact fonts/colors from
theme.chat.message.{incoming|outgoing}. Tap is driven by a
UITapGestureRecognizer (ASControl .touchUpInside is cancelled by the chat
ListView's gesture system). V1's InstantPageAudioNode is unchanged.
- Playback runs on InstantPageMediaPlaylist with a discriminated, message-scoped
InstantPageMediaPlaylistId (.instantPage / .richMessage) so concurrent
rich-message audio bubbles don't collide; the big control's play/pause comes
from filteredPlaylistState, the overlay's download/progress from
messageMediaFileStatus, and fetch goes through the fetch manager.
- Rich-message audio fetches via a MessageReference (threaded through the V2
render context) instead of the synthesized webpage; FetchedMediaResource's
.message revalidation arm now also searches RichTextMessageAttribute instant
pages, so a stale instant-page audio/image reference can recover. Corrected a
dormant inverted InstantPagePlaylistLocation.isEqual.
- New .mediaAudio laid-out item + layout/reveal-cost arms; the audio block lays
out full-width at the file node's music normHeight.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- layoutTextItem now sizes a text item to the true font line height (A + D)
instead of the cap box: the line stack starts at lineBoxTopInset (the
ascender headroom, max(0, fontAscent - fontLineHeight)) and the returned
height is padded by the last line's descender. Inter-line advance is
unchanged and per-line frames stay the cap box, so the baseline draw,
decorations, reveal mask, and inline attachments translate consistently;
the page grows.
- Size inline custom emoji to ~the font line height
(font.ascender - font.descender + 4*pointSize/17) so they fit the taller
line box instead of overflowing it; the line is not inflated.
- Add a dedicated code-block text style for rich messages (monospace font +
codeBlock theme attribute) threaded through the rich-data bubble and send
preview; unify the bubble code-block/separator colors.
- Adjust inter-block spacings and assorted V2 layout/divider details.
- Document the true-font-height box and emoji sizing in CLAUDE.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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>
The bubble's bottom inset is supplied by the `statusBottomEdge + 6.0`
max() in the measure closure, but that branch is gated by `!hasDraft`.
During streaming (status hidden, alpha=0) the gate skips the max() and
nothing else supplies the inset — boundingSize.height ends up at only
`revealedContentSize.height + 2` (= bounds.maxY + closingPad + rim),
so descenders of the last revealed line sit cramped against the bubble's
bottom edge and the bubble visibly grows by 6pt the moment streaming
ends and the status node fades in.
Adds an explicit `if hasDraft { boundingSize.height += 6.0 }` after
the streamingHeaderOffset application — same 6pt the status max() would
contribute, so the streaming bubble's bottom breathing room matches its
post-stream height and the grow-pop disappears.
The `hadDraft && !hasDraft` finalize pass already gets the inset via
the status max() (since `!hasDraft` is true), so it's untouched. The
non-streaming path is also untouched.
TextBubble doesn't have this issue because it computes a position-based
`bottomInset` and adds it to boundingSize.height unconditionally (see
ChatMessageTextBubbleContentNode.swift:234-256, :827). RichData absorbed
that value into the `+ 6.0` constant inside its `!hasDraft` status
max(), which made it disappear during streaming. CLAUDE.md gains a
sibling bullet flagging that future refactor-the-constant-into-bottomInset
work must remove both ends in the same commit.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Thread the chat list's animated transition through InstantPageV2View.update so
reused-item frame changes animate: the toggled details view's own frame-height
(clipsToBounds) clip-reveals/clip-hides its body, sibling items below slide, and
the chevron rotates — all on the one transition the bubble already drives for its
outer height. On expand the body is added up-front; on collapse it is kept and
torn down in finalizePendingCollapse(), called from the completion of the
frame-shrink (clip) animation that hides it. Drop the forced scroll-to-center on
toggle so the bubble grows in place.
Also render the chevron as a UIImageView with a template image + tintColor (the
message's primary text color) instead of baking the tint into a CALayer's cgImage
contents, which dropped the color and rendered it black.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Add the RichText.textSpoiler case end-to-end: model + Postbox coding,
FlatBuffers schema/codec, and Api.RichText parsing/serialization (lossless).
Display attaches the spoiler attribute, collects per-line spoiler rects in
the V2 layout, clips obscured glyphs and draws an energy-gated dust overlay
in the V2 text view, propagates the reveal flag across the nested V2 tree
(building dust for freshly-created text views), and wires tap-to-reveal
routing in the rich-data bubble.
Also seeds the streaming reveal cursor across chunk rebuilds and refines
status date positioning.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Implement the nine message-entity RichText cases (textMention,
textMentionName, textHashtag, textCashtag, textBotCommand, textBankCard,
textAutoUrl, textAutoEmail, textAutoPhone): model + Postbox coding,
FlatBuffers schema/codec, Api.RichText parsing/serialization (lossless),
InstantPage display attaching the matching TelegramTextAttributes keys, and
tap routing in the rich-data bubble mirroring ChatMessageTextBubbleContentNode.
mentionName display resolves via EnginePeer.Id (PeerId not in scope).
Also lets rich-data text selection reach a line's trailing edge and fixes
the date/status node positioning to match TextBubble.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Add the RichText.textCustomEmoji(fileId:alt:) case end-to-end: model +
Postbox coding, FlatBuffers schema/codec, and Api.RichText
parsing/serialization (lossless), plus display in the InstantPage V2
renderer. The emoji renders as an InlineStickerItemLayer that participates
in the streaming reveal (pops in as the reveal cursor crosses it) and is
gated by the bubble's visibility rect, propagated recursively through the
nested V2 view tree. Also frees the CTRunDelegate extent buffers for the
image/formula/custom-emoji attachment arms and documents the feature in
CLAUDE.md.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Spec, plan, and full implementation of the AI-message streaming
animation in ChatMessageRichDataBubbleContentNode. Extracts
TextRevealController into a shared StreamingTextReveal submodule;
precomputes per-character rects in V2 layout (RTL-safe, glyph-ink
bounds); splits InstantPageV2TextView into render container + render
view with a reveal mask layer; implements mask + snippet pop-in
reveal; adds a per-text-view reveal cost map + applyReveal extension;
switches reveal cost to a width-based unit; sizes / clips the bubble
to the revealed prefix during streaming; aligns the Thinking… header
with TextBubble; floors table cell reveal cost at cell frame width;
includes layout closing pad in revealedContentSize; documents the
non-obvious invariants in CLAUDE.md.
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.
Design and plan, then the implementation: extract a shared
openInstantPageMedia helper for V1+V2 reuse, add typed media item
cases + allMedias() helper, introduce InstantPageV2RenderContext and
thread it through the view tree, add four media wrapper views, route
layout dispatch through typed media items, let the chat bubble build
the render context so real media renders, wire gallery tap routing,
cache V2View by message id + stableVersion, add stable-id identity +
per-class update(item:theme:), reuse item views on re-layouts via
stable-id harvest, preserve TextView clipping inset on reuse, and let
the use site control media-reference construction.
Initial design, plan, scaffold, and the full incremental implementation
of InstantPage V2 used by ChatMessageRichDataBubbleContentNode: layout
data types and driver, shared text helpers, text view / divider /
anchor, lists, code blocks, block/pull quotes, media placeholders,
details (with recursion), tables, hit-test / selection / last-line
helpers, V1→V2 swap in the rich-data bubble, and post-swap fix-ups
(cache key, RTL paragraphs, list geometry, lazy pageView construction,
fitToWidth horizontal inset, V2View.update() no longer writes
self.frame).
Spec, plan, and implementation of the date / checks / reactions /
effects status node on ChatMessageRichDataBubbleContentNode. Hoists
layout work out of the inner closure and anchors the status frame top
at text maxY.
Smooth-pace reveal of incoming live typing drafts. Adds the design
doc, implementation plan, the EWMA inter-arrival → velocity-smoothed
cursor core, handling for text shrink / item loss, and debug logs.
Sweep 14 BUILD files whose modules no longer have any source file with
`import Postbox`. All targets are ChatMessage*BubbleContentNode subclasses
plus WallpaperPreviewMedia — modules whose Swift sources stopped importing
Postbox in earlier waves but whose BUILD deps were not cleaned up.
Pre-flight: for each `BUILD` containing `"//submodules/Postbox"`, verified
no source file under `<module>/Sources` matches `^import Postbox$`. 14
modules met the criterion.
Build: 15s warm-cache verify, 0 errors.
Modules:
- ChatMessageActionBubbleContentNode
- ChatMessageEventLogPreviousDescriptionContentNode
- ChatMessageEventLogPreviousLinkContentNode
- ChatMessageEventLogPreviousMessageContentNode
- ChatMessageFileBubbleContentNode
- ChatMessageGameBubbleContentNode
- ChatMessageInvoiceBubbleContentNode
- ChatMessageMapBubbleContentNode
- ChatMessageMediaBubbleContentNode
- ChatMessageProfilePhotoSuggestionContentNode
- ChatMessageStoryMentionContentNode
- ChatMessageWallpaperBubbleContentNode
- ChatMessageWebpageBubbleContentNode
- WallpaperPreviewMedia
Pre-wave attempt failure note: tried 5 source-side `import Postbox` drops
first (StatsMessageItem, StarsAvatarComponent, PeerListItemComponent,
WebAppMessagePreviewScreen, OpenChatMessage). All 5 hit hidden bare
`Media`/`Message`/`PeerStoryStats`/`areMediaArraysEqual` references that
the prior pre-flight regex missed. Reverted source edits; only the
risk-free BUILD-dep sweep survives in this commit.
Lesson: pre-flight regex MUST include bare Postbox protocols
`\bMedia\b`, `\bMessage\b`, `\bPeer\b`, plus the Postbox helper
`areMediaArraysEqual` and the `PeerStoryStats` type. The previous
identifier-typealias-only regex was insufficient.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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.
Adds a base getAnchorRect on ChatMessageBubbleContentNode, the rich-bubble
override (including titleHeight in details recursion), bubble-item
forwarding to content nodes, ChatControllerInteraction.scrollToMessageIdWithAnchor,
and a scrollToAnchor that lands the anchor at the top of the content area /
its line. Threads anchor/scroll params through ChatController and related
call sites.
Adds ChatControllerInteraction dependency, link-progress state, URL tap
detection, press-highlight separation from in-flight URL shimmer, media-tap
routing through openMessage with explicit IV media subject, and gallery↔bubble
transition with hidden-media coordination. Stops re-appending to
currentLayoutItemsWithNodes across re-layouts. Drops a leftover MetalEngine
debug print as well.
isaacandClaude Opus 4.8
Ilya Laktyushin