mirror of
https://github.com/TelegramMessenger/Telegram-iOS.git
synced 2026-07-05 19:28:46 +02:00
dce6a8bef7
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>
1554 lines
89 KiB
Swift
1554 lines
89 KiB
Swift
import Foundation
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import UIKit
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import AsyncDisplayKit
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import Display
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import TelegramCore
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import SwiftSignalKit
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import AccountContext
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import ChatMessageBubbleContentNode
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import ChatMessageDateAndStatusNode
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import ChatMessageItemCommon
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import ChatControllerInteraction
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import InstantPageUI
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import TextFormat
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import TelegramUIPreferences
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import TextLoadingEffect
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import TextSelectionNode
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import StreamingTextReveal
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public class ChatMessageRichDataBubbleContentNode: ChatMessageBubbleContentNode {
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public final class ContainerNode: ASDisplayNode {
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}
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private let containerNode: ContainerNode
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public var statusNode: ChatMessageDateAndStatusNode?
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// `init()` may run off the main thread; UIView construction must happen on the main thread.
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// The page view is built lazily inside the apply closure (always main-thread) via ensurePageView().
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private var pageView: InstantPageV2View?
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// Tracks the message (id + stableVersion) baked into the current pageView's render context.
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// The synthesized webpage uses a sentinel id (namespace 0, id 0) shared across all richText
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// messages, so we key cache invalidation on the message itself. When the bubble is recycled
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// with a different message we must discard pageView (render context is constructor-fixed).
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private var pageViewMessageKey: (id: EngineMessage.Id, stableVersion: UInt32, showMoreExpanded: Bool)?
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// messageStableVersion is in the cache key because the synthesized instantPage content
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// mutates between streamed AI message chunks (each chunk bumps stableVersion); without
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// this, the cached layout would shadow newly-arrived content during streaming.
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private var currentPageLayout: (boundingWidth: CGFloat,
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presentationThemeIdentity: ObjectIdentifier,
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expandedDetails: [Int: Bool],
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messageStableVersion: UInt32,
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showMoreExpanded: Bool,
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layout: InstantPageV2Layout)?
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private var currentExpandedDetails: [Int: Bool] = [:]
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// Intra-message anchor scroll that is waiting on a collapsed <details> to expand + relayout.
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private var pendingScrollAnchor: String?
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// Progress guard: the details index expanded on the previous pending pass.
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private var lastExpandedPendingDetailsIndex: Int?
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private var linkProgressDisposable: Disposable?
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private var linkProgressRects: [CGRect]?
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private var linkHighlightingNode: LinkHighlightingNode?
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private var linkProgressView: TextLoadingEffectView?
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private var textSelectionAdapter: InstantPageMultiTextAdapter?
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private var textSelectionNode: TextSelectionNode?
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private var textRevealController: TextRevealController?
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private var textRevealLink: SharedDisplayLinkDriver.Link?
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private var currentRevealCostMap: InstantPageV2RevealCostMap?
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// Cursor value pushed into pageView.applyReveal on the prior tick. The display-link tick
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// compares the revealed prefix's height at this cursor vs the new cursor to decide when
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// to request a full bubble re-layout (so the bubble grows with the reveal).
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private var lastAppliedRevealedCount: Int = 0
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private var displayContentsUnderSpoilers: Bool = false
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private var relativeDateTimer: (timer: SwiftSignalKit.Timer, period: Int32)?
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// "Show more" affordance for partial rich messages (instantPage.isComplete == false).
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// Managed inline, mirroring the statusNode pattern: a bubble-owned TextNode below the page
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// content, with a TextLoadingEffectView shimmer while the full-text request is in flight.
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private var showMoreTextNode: TextNode?
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private var showMoreLoadingView: TextLoadingEffectView?
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private var requestFullRichTextDisposable: Disposable?
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private var requestFullRichTextMessageId: EngineMessage.Id?
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// Transient per-message expand state. The full page is shown only after the user taps "Show
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// more"; tagging it with the message id means any other message starts collapsed (partial)
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// every time, even if its attribute already carries a cached fullInstantPage.
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private var showMoreExpanded: (messageId: EngineMessage.Id, value: Bool)?
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// The expand state actually applied on the previous layout pass, used to detect the
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// collapse→expand transition so the bubble can grow downward in screen space (see the
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// setInvertOffsetDirection call in the apply closure). nil until the first apply.
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private var appliedShowMoreExpanded: Bool?
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override public var visibility: ListViewItemNodeVisibility {
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didSet {
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if oldValue != self.visibility {
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self.updatePageViewVisibilityRect()
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}
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}
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}
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// Pushes the current `visibility` sub-rect into `pageView.visibilityRect`, translated into the
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// page view's coordinate space (the page view sits at the top of the bubble; no header offset).
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// Re-invoked from the apply closure after `pageView.frame` is set, because the pageView's
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// y-origin and size can change across streamed chunks (content growth) without a `visibility`
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// change, which would otherwise leave the animation-gating rect stale.
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private func updatePageViewVisibilityRect() {
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guard let pageView = self.pageView else {
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return
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}
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switch self.visibility {
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case .none:
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pageView.visibilityRect = nil
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case let .visible(_, subRect):
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var rect = subRect
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rect.origin.x = 0.0
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rect.size.width = 10000.0
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rect.origin.y -= pageView.frame.minY
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pageView.visibilityRect = rect
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}
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}
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required public init() {
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self.containerNode = ContainerNode()
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self.containerNode.clipsToBounds = true
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super.init()
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self.addSubnode(self.containerNode)
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}
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/// Builds (or reuses) the V2View. Same-message stableVersion bumps (streamed AI chunks) reuse
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/// the existing view, updating only the webpage content in place. The view is rebuilt only when
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/// the bubble is recycled with a different message/webpage (different message id).
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private func ensurePageView(item: ChatMessageBubbleContentItem, webpage: TelegramMediaWebpage, showMoreExpanded: Bool) -> InstantPageV2View {
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let key = (id: item.message.id, stableVersion: item.message.stableVersion, showMoreExpanded: showMoreExpanded)
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if let existing = self.pageView, let current = self.pageViewMessageKey, current.id == key.id {
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if current.stableVersion == key.stableVersion && current.showMoreExpanded == key.showMoreExpanded {
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return existing
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}
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// Same message, new chunk: reuse the view. Update only the content-bearing webpage on
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// the existing render context; the subsequent pageView.update(layout:) call diffs item
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// views by stable id (content blocks keep their ids, so their views and in-flight
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// reveal state persist; only added/removed blocks change). This replaces the old
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// wholesale rebuild and eliminates the per-chunk full-text-then-mask flash.
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existing.renderContext?.updateContent(webpage: webpage)
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self.pageViewMessageKey = key
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return existing
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}
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self.pageView?.removeFromSuperview()
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self.pageView = nil
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// Capture only the MessageReference (value type) — the closures are retained on the
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// render context which is owned by the V2View, so we must avoid making them retain
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// the bubble (`self`) or the message indirectly via `item`.
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let messageReference = MessageReference(item.message)
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let renderContext = InstantPageV2RenderContext(
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context: item.context,
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webpage: webpage,
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sourceLocation: InstantPageSourceLocation(userLocation: .other, peerType: .channel),
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imageReference: { image in
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return ImageMediaReference.message(message: messageReference, media: image)
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},
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fileReference: { file in
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return FileMediaReference.message(message: messageReference, media: file)
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},
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present: { [weak self] controller, args in
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self?.item?.controllerInteraction.presentController(controller, args)
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},
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push: { [weak self] controller in
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self?.item?.controllerInteraction.navigationController()?.pushViewController(controller)
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},
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openUrl: { [weak self] urlItem in
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self?.openInstantPageUrl(urlItem)
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},
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baseNavigationController: { [weak self] in
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self?.item?.controllerInteraction.navigationController()
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},
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message: messageReference
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)
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let view = InstantPageV2View(renderContext: renderContext)
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self.pageView = view
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self.pageViewMessageKey = key
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self.containerNode.view.addSubview(view)
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view.detailsTapped = { [weak self] index in
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guard let self else { return }
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let current = self.currentExpandedDetails[index] ?? self.defaultExpanded(forDetailsIndex: index)
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self.currentExpandedDetails[index] = !current
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if let item = self.item {
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item.controllerInteraction.requestMessageUpdate(item.message.id, false, nil)
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}
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}
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return view
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}
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private func defaultExpanded(forDetailsIndex index: Int) -> Bool {
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guard let layout = self.currentPageLayout?.layout else { return false }
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func search(_ items: [InstantPageV2LaidOutItem]) -> Bool? {
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for item in items {
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if case let .details(d) = item {
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if d.index == index {
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return d.defaultExpanded
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}
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// Recurse into an expanded parent's body so NESTED details indices resolve too;
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// the flat top-level scan missed them, leaving the toggle's "current state"
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// computation wrong for a nested details whose model default is expanded.
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if let inner = d.innerLayout, let found = search(inner.items) {
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return found
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}
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}
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}
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return nil
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}
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return search(layout.items) ?? false
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}
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required public init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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deinit {
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self.linkProgressDisposable?.dispose()
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self.relativeDateTimer?.timer.invalidate()
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self.requestFullRichTextDisposable?.dispose()
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}
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override public func asyncLayoutContent() -> (_ item: ChatMessageBubbleContentItem, _ layoutConstants: ChatMessageItemLayoutConstants, _ preparePosition: ChatMessageBubblePreparePosition, _ messageSelection: Bool?, _ constrainedSize: CGSize, _ avatarInset: CGFloat) -> (ChatMessageBubbleContentProperties, CGSize?, CGFloat, (CGSize, ChatMessageBubbleContentPosition) -> (CGFloat, (CGFloat) -> (CGSize, (ListViewItemUpdateAnimation, Bool, ListViewItemApply?) -> Void))) {
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let previousItem = self.item
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let currentPageLayout = self.currentPageLayout
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let currentExpandedDetails = self.currentExpandedDetails
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let showMoreExpandedState = self.showMoreExpanded
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let statusLayout = ChatMessageDateAndStatusNode.asyncLayout(self.statusNode)
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let showMoreTextLayout = TextNode.asyncLayout(self.showMoreTextNode)
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// Captured at main-thread, top of asyncLayoutContent. Mirrors TextBubble's
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// `currentMaxGlyphCount` (TextBubble:313). The bubble's bounding size is sized
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// to this revealed prefix during streaming, so it grows with the reveal rather
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// than being final-sized from the first chunk.
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let currentMaxGlyphCount: Int? = self.textRevealController?.currentGlyphCount
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return { [weak self] item, layoutConstants, _, _, _, _ in
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let contentProperties = ChatMessageBubbleContentProperties(hidesSimpleAuthorHeader: false, headerSpacing: 0.0, hidesBackground: .never, forceFullCorners: false, forceAlignment: .none)
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return (contentProperties, nil, CGFloat.greatestFiniteMagnitude, { constrainedSize, position in
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let suggestedBoundingWidth: CGFloat = constrainedSize.width
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var boundingSize = CGSize(width: suggestedBoundingWidth, height: 0.0)
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var pageLayout: InstantPageV2Layout?
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// Built alongside pageLayout so the apply closure can hand it to ensurePageView.
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var pageWebpage: TelegramMediaWebpage?
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// Horizontal text inset baked into the InstantPage layout. The pageView sits at
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// self-x 0 (containerNode at 1, pageView at -1 inside it), so the page's text
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// left edge in the status node's coordinate space is exactly this value. Used as
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// the status node's left edge + side inset, mirroring TextBubble's bubbleInsets.
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let pageHorizontalInset: CGFloat = 11.0
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let isDark = item.presentationData.theme.theme.overallDarkAppearance
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let isIncoming = item.message.effectivelyIncoming(item.context.account.peerId)
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let messageTheme = isIncoming ? item.presentationData.theme.theme.chat.message.incoming : item.presentationData.theme.theme.chat.message.outgoing
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var underlineLinks = true
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if !messageTheme.primaryTextColor.isEqual(messageTheme.linkTextColor) {
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underlineLinks = false
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}
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let _ = underlineLinks
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let author = item.message.author
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let mainColor: UIColor
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var secondaryColor: UIColor? = nil
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var tertiaryColor: UIColor? = nil
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let nameColors: PeerNameColors.Colors?
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switch author?.nameColor {
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case let .preset(nameColor):
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nameColors = item.context.peerNameColors.get(nameColor, dark: item.presentationData.theme.theme.overallDarkAppearance)
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case let .collectible(collectibleColor):
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nameColors = collectibleColor.peerNameColors(dark: item.presentationData.theme.theme.overallDarkAppearance)
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default:
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nameColors = nil
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}
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let codeBlockBackgroundColor: UIColor
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let codeBlockTitleColor: UIColor
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let codeBlockAccentColor: UIColor
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if !isIncoming {
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mainColor = messageTheme.accentTextColor
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if let _ = nameColors?.secondary {
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secondaryColor = .clear
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}
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if let _ = nameColors?.tertiary {
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tertiaryColor = .clear
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}
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if item.presentationData.theme.theme.overallDarkAppearance {
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codeBlockTitleColor = .white
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codeBlockAccentColor = UIColor(white: 1.0, alpha: 0.5)
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} else {
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codeBlockTitleColor = mainColor
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codeBlockAccentColor = mainColor
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}
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codeBlockBackgroundColor = mainColor.withMultipliedAlpha(0.1)
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} else {
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let authorNameColor = nameColors?.main
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secondaryColor = nameColors?.secondary
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tertiaryColor = nameColors?.tertiary
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if let authorNameColor {
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mainColor = authorNameColor
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} else {
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mainColor = messageTheme.accentTextColor
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}
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codeBlockTitleColor = mainColor
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codeBlockAccentColor = mainColor
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codeBlockBackgroundColor = mainColor.withMultipliedAlpha(0.1)
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}
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let _ = secondaryColor
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let _ = tertiaryColor
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let _ = codeBlockTitleColor
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let _ = codeBlockAccentColor
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let textCategories = InstantPageTextCategories(
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kicker: InstantPageTextAttributes(font: InstantPageFont(style: .sans, size: 15.0, lineSpacingFactor: 0.685), color: messageTheme.primaryTextColor),
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header: InstantPageTextAttributes(font: InstantPageFont(style: .serif, size: 19.0, lineSpacingFactor: 0.685), color: messageTheme.primaryTextColor),
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subheader: InstantPageTextAttributes(font: InstantPageFont(style: .serif, size: 18.0, lineSpacingFactor: 0.685), color: messageTheme.primaryTextColor),
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paragraph: InstantPageTextAttributes(font: InstantPageFont(style: .sans, size: 17.0, lineSpacingFactor: 1.0), color: messageTheme.primaryTextColor),
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caption: InstantPageTextAttributes(font: InstantPageFont(style: .sans, size: 15.0, lineSpacingFactor: 1.0), color: messageTheme.secondaryTextColor),
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credit: InstantPageTextAttributes(font: InstantPageFont(style: .sans, size: 13.0, lineSpacingFactor: 1.0), color: messageTheme.secondaryTextColor),
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table: InstantPageTextAttributes(font: InstantPageFont(style: .sans, size: 15.0, lineSpacingFactor: 1.0), color: messageTheme.primaryTextColor),
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article: InstantPageTextAttributes(font: InstantPageFont(style: .serif, size: 18.0, lineSpacingFactor: 1.0), color: messageTheme.primaryTextColor),
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codeBlock: InstantPageTextAttributes(font: InstantPageFont(style: .monospace, size: 14.0, lineSpacingFactor: 1.0), color: messageTheme.primaryTextColor),
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)
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let pageTheme = InstantPageTheme(
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type: isDark ? .dark : .light,
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pageBackgroundColor: .clear,
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textCategories: textCategories,
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serif: false,
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codeBlockBackgroundColor: codeBlockBackgroundColor,
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linkColor: messageTheme.linkTextColor,
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textHighlightColor: messageTheme.accentTextColor.withMultipliedAlpha(0.1),
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linkHighlightColor: messageTheme.linkTextColor.withMultipliedAlpha(0.1),
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markerColor: UIColor(rgb: 0xfef3bc),
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panelBackgroundColor: messageTheme.accentControlColor.withMultipliedAlpha(0.1),
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panelHighlightedBackgroundColor: messageTheme.accentControlColor.withMultipliedAlpha(0.25),
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panelPrimaryColor: messageTheme.primaryTextColor,
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panelSecondaryColor: messageTheme.secondaryTextColor,
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panelAccentColor: messageTheme.accentTextColor,
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tableBorderColor: isDark || !isIncoming ? messageTheme.accentControlColor.withMultipliedAlpha(0.25) : UIColor(white: 0.0, alpha: 0.1),
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tableHeaderColor: isDark || !isIncoming ? messageTheme.accentControlColor.withMultipliedAlpha(0.1) : UIColor(white: 0.0, alpha: 0.05),
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controlColor: messageTheme.accentControlColor,
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imageTintColor: nil,
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overlayPanelColor: isDark ? UIColor(white: 0.0, alpha: 0.13) : UIColor(white: 1.0, alpha: 0.13),
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separatorColor: messageTheme.secondaryTextColor.mixedWith(mainColor.withMultipliedAlpha(0.2), alpha: 0.3),
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secondaryControlColor: messageTheme.secondaryTextColor.mixedWith(mainColor.withMultipliedAlpha(0.2), alpha: 0.3)
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)
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var hasDraft = false
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if item.message.attributes.contains(where: { $0 is TypingDraftMessageAttribute }) {
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hasDraft = true
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}
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var hadDraft = false
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if let previousItem, previousItem.message.attributes.contains(where: { $0 is TypingDraftMessageAttribute }) {
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hadDraft = true
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}
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// Resolve the node-local expand state for THIS message (collapsed for any other).
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let showMoreExpanded = (showMoreExpandedState?.messageId == item.message.id) ? (showMoreExpandedState?.value ?? false) : false
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if let attribute = item.message.richText {
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#if DEBUG && false
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let instantPage = InstantPage(blocks: [.thinking(.concat([
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.textCustomEmoji(fileId: 5384559872899555845, alt: "a"),
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.plain("Thinking...")
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]))], media: [:], isComplete: true, rtl: false, url: "", views: nil)
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#else
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// Show the full page only while expanded (after a "Show more" tap); otherwise the partial.
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let instantPage = (showMoreExpanded ? attribute.fullInstantPage : nil) ?? attribute.instantPage
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#endif
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let webpage = TelegramMediaWebpage(webpageId: EngineMedia.Id(namespace: 0, id: 0), content: .Loaded(TelegramMediaWebpageLoadedContent(
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url: "",
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displayUrl: "",
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hash: 0,
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type: nil,
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websiteName: nil,
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title: nil,
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text: nil,
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embedUrl: nil,
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embedType: nil,
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embedSize: nil,
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duration: nil,
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author: nil,
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isMediaLargeByDefault: nil,
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imageIsVideoCover: false,
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image: nil,
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file: nil,
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story: nil,
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attributes: [],
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instantPage: instantPage
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)))
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pageWebpage = webpage
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let presentationThemeIdentity = ObjectIdentifier(item.presentationData.theme.theme)
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let currentMessageStableVersion = item.message.stableVersion
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if let current = currentPageLayout,
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current.boundingWidth == suggestedBoundingWidth,
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current.presentationThemeIdentity == presentationThemeIdentity,
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current.expandedDetails == currentExpandedDetails,
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current.showMoreExpanded == showMoreExpanded,
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current.messageStableVersion == currentMessageStableVersion,
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current.layout.formattedDateUpdatePeriod == nil {
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// Reuse the cached layout only when it has no relative `textDate`. A relative
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// date's formatted string ("N minutes ago") is baked into the laid-out text at
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// layout time, and none of the cache-key inputs change as wall-clock advances —
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// so reusing it would freeze the date and defeat the refresh timer (which fires
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// `requestFullUpdate` precisely to re-run `layoutInstantPageV2` → `formatDate`).
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// Forcing a recompute for relative-date pages keeps the timer's tick visible.
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|
pageLayout = current.layout
|
|
} else {
|
|
#if DEBUG && false
|
|
let instantPage = InstantPage(blocks: [.thinking(.concat([
|
|
.textCustomEmoji(fileId: 5384559872899555845, alt: "a"),
|
|
.plain("Thinking...")
|
|
]))], media: [:], isComplete: true, rtl: false, url: "", views: nil)
|
|
#else
|
|
let instantPage = (showMoreExpanded ? attribute.fullInstantPage : nil) ?? attribute.instantPage
|
|
#endif
|
|
pageLayout = layoutInstantPageV2(
|
|
webpage: webpage,
|
|
instantPage: instantPage,
|
|
userLocation: .other,
|
|
boundingWidth: suggestedBoundingWidth - 2.0,
|
|
horizontalInset: pageHorizontalInset,
|
|
theme: pageTheme,
|
|
strings: item.presentationData.strings,
|
|
dateTimeFormat: item.presentationData.dateTimeFormat,
|
|
cachedMessageSyntaxHighlight: nil,
|
|
expandedDetails: currentExpandedDetails,
|
|
fitToWidth: true,
|
|
computeRevealCharacterRects: hasDraft || hadDraft
|
|
)
|
|
}
|
|
}
|
|
|
|
// Cost map computed here (not in apply) so we can size the bubble to the
|
|
// revealed prefix this layout pass. Mirrors TextBubble's clippedGlyphCountLayout.
|
|
let revealCostMap: InstantPageV2RevealCostMap? = (hasDraft || hadDraft) ? pageLayout?.computeRevealCostMap() : nil
|
|
let revealedGlyphCount: Int? = (hasDraft || hadDraft) ? (currentMaxGlyphCount ?? 0) : nil
|
|
|
|
if let pageLayout {
|
|
let effectiveSize: CGSize
|
|
if let costMap = revealCostMap, let glyphCount = revealedGlyphCount {
|
|
effectiveSize = costMap.revealedContentSize(revealedCount: glyphCount, layout: pageLayout)
|
|
} else {
|
|
effectiveSize = pageLayout.contentSize
|
|
}
|
|
boundingSize.width = effectiveSize.width
|
|
boundingSize.height = effectiveSize.height + 2.0
|
|
}
|
|
|
|
// The hardcoded "Thinking…" header was removed in favor of server-sent
|
|
// InstantPageBlock.thinking blocks (rendered inside the pageView). There is no
|
|
// header strip anymore, so the page content starts at the top of the bubble.
|
|
let streamingHeaderOffset: CGFloat = 0.0
|
|
|
|
if hasDraft {
|
|
// The bubble's bottom inset is supplied by the `statusBottomEdge + 6.0`
|
|
// max() in the measure closure below — but that branch is gated by
|
|
// `!hasDraft`, so during streaming the bubble has only its 1pt bottom rim
|
|
// past `revealedContentSize.height` (= bounds.maxY + closingPad). Without
|
|
// this, descenders of the last revealed line sit cramped against the
|
|
// bubble's bottom edge and the bubble visibly grows by 6pt when streaming
|
|
// ends and the status node fades in. 6pt matches the constant inside the
|
|
// status max() (which itself tracks `TextBubble`'s `bubbleInsets.bottom`).
|
|
// `hadDraft && !hasDraft` (the finalize pass) doesn't need this because
|
|
// `!hasDraft` re-enables the status max(), which supplies the inset for it.
|
|
boundingSize.height += 6.0
|
|
}
|
|
|
|
let message = item.message
|
|
let incoming = isIncoming
|
|
|
|
var edited = false
|
|
if item.attributes.updatingMedia != nil {
|
|
edited = true
|
|
}
|
|
var viewCount: Int?
|
|
var dateReplies = 0
|
|
var starsCount: Int64?
|
|
var dateReactionsAndPeers = mergedMessageReactionsAndPeers(accountPeerId: item.context.account.peerId, accountPeer: item.associatedData.accountPeer, message: item.topMessage)
|
|
if item.message.isRestricted(platform: "ios", contentSettings: item.context.currentContentSettings.with { $0 }) {
|
|
dateReactionsAndPeers = ([], [])
|
|
}
|
|
|
|
for attribute in item.message.attributes {
|
|
if let attribute = attribute as? EditedMessageAttribute {
|
|
edited = !attribute.isHidden
|
|
} else if let attribute = attribute as? ViewCountMessageAttribute {
|
|
viewCount = attribute.count
|
|
} else if let attribute = attribute as? ReplyThreadMessageAttribute, case .peer = item.chatLocation {
|
|
if let channel = item.message.peers[item.message.id.peerId] as? TelegramChannel, case .group = channel.info {
|
|
dateReplies = Int(attribute.count)
|
|
}
|
|
} else if let attribute = attribute as? PaidStarsMessageAttribute, item.message.id.peerId.namespace == Namespaces.Peer.CloudChannel {
|
|
starsCount = attribute.stars.value
|
|
}
|
|
}
|
|
|
|
let dateFormat: MessageTimestampStatusFormat
|
|
if item.presentationData.isPreview {
|
|
dateFormat = .full
|
|
} else if let subject = item.associatedData.subject, case .messageOptions = subject {
|
|
dateFormat = .minimal
|
|
} else {
|
|
dateFormat = .regular
|
|
}
|
|
let dateText = stringForMessageTimestampStatus(accountPeerId: item.context.account.peerId, message: EngineMessage(item.message), dateTimeFormat: item.presentationData.dateTimeFormat, nameDisplayOrder: item.presentationData.nameDisplayOrder, strings: item.presentationData.strings, format: dateFormat, associatedData: item.associatedData)
|
|
|
|
let statusType: ChatMessageDateAndStatusType?
|
|
var displayStatus = false
|
|
switch position {
|
|
case let .linear(_, neighbor):
|
|
if case .None = neighbor {
|
|
displayStatus = true
|
|
} else if case .Neighbour(true, _, _) = neighbor {
|
|
displayStatus = true
|
|
}
|
|
default:
|
|
break
|
|
}
|
|
if case let .customChatContents(contents) = item.associatedData.subject {
|
|
if case .hashTagSearch = contents.kind {
|
|
displayStatus = true
|
|
} else {
|
|
displayStatus = false
|
|
}
|
|
} else if !item.presentationData.chatBubbleCorners.hasTails {
|
|
displayStatus = false
|
|
} else if case let .messageOptions(_, _, info) = item.associatedData.subject, case let .link(link) = info, link.isCentered {
|
|
displayStatus = false
|
|
}
|
|
|
|
if displayStatus {
|
|
if incoming {
|
|
statusType = .BubbleIncoming
|
|
} else {
|
|
if message.flags.contains(.Failed) {
|
|
statusType = .BubbleOutgoing(.Failed)
|
|
} else if (message.flags.isSending && !message.isSentOrAcknowledged) || item.attributes.updatingMedia != nil {
|
|
statusType = .BubbleOutgoing(.Sending)
|
|
} else {
|
|
statusType = .BubbleOutgoing(.Sent(read: item.read))
|
|
}
|
|
}
|
|
} else {
|
|
statusType = nil
|
|
}
|
|
|
|
// Only trail the status inline with the last text line when the bottom-most page
|
|
// item is itself a text item; otherwise (table/image/etc. last) the status falls
|
|
// through to the contentSize.height anchor and sits below all content.
|
|
let lastTextLine = pageLayout.flatMap(InstantPageUI.lastTextLineFrameIfLastItemIsText(in:))
|
|
var lastTextLineFrame: CGRect? = lastTextLine?.frame
|
|
// Baseline → visible-text-bottom compensation. Applied whether the date trails on
|
|
// the last line or wraps onto its own line below it (0 for attachment-inflated lines,
|
|
// whose maxY already sits at the visible bottom).
|
|
var lastTextLineTrailingPadding: CGFloat = lastTextLine?.trailingBottomPadding ?? 0.0
|
|
|
|
// "Show more" affordance for partial rich messages: laid out as a bubble-owned text
|
|
// node below the page content. Shown only when the page is incomplete AND the user
|
|
// has not expanded it yet (showMoreExpanded == false), the message is not streaming,
|
|
// it is a Cloud message (requestFullRichText is a no-op otherwise), and we are not in
|
|
// a preview / messageOptions context. When present, the date trails the link's line
|
|
// by substituting its frame for the last-text-line frame the status machinery consumes.
|
|
var showMore = false
|
|
if let attribute = item.message.richText,
|
|
!showMoreExpanded,
|
|
!attribute.instantPage.isComplete,
|
|
!hasDraft,
|
|
item.message.id.namespace == Namespaces.Message.Cloud,
|
|
!item.presentationData.isPreview {
|
|
if let subject = item.associatedData.subject, case .messageOptions = subject {
|
|
showMore = false
|
|
} else {
|
|
showMore = true
|
|
}
|
|
}
|
|
|
|
var showMoreLayoutResult: (TextNodeLayout, () -> TextNode)?
|
|
var showMoreFramePageLocal: CGRect?
|
|
if showMore, let pageLayout {
|
|
let title = item.presentationData.strings.Chat_RichText_ShowMore
|
|
let attributedTitle = NSAttributedString(string: title, font: Font.regular(17.0), textColor: messageTheme.linkTextColor)
|
|
// The link only fits within the existing bubble width (it does not widen the
|
|
// bubble the way the status node does); the short fixed string never needs more,
|
|
// and `.end` truncation is a safe fallback for a pathologically narrow bubble.
|
|
let constrainedWidth = max(1.0, boundingSize.width - pageHorizontalInset * 2.0)
|
|
let layout = showMoreTextLayout(TextNodeLayoutArguments(attributedString: attributedTitle, maximumNumberOfLines: 1, truncationType: .end, constrainedSize: CGSize(width: constrainedWidth, height: 100.0)))
|
|
let showMoreTopSpacing: CGFloat = 2.0
|
|
let frame = CGRect(origin: CGPoint(x: pageHorizontalInset, y: pageLayout.contentSize.height + showMoreTopSpacing), size: layout.0.size)
|
|
showMoreLayoutResult = layout
|
|
showMoreFramePageLocal = frame
|
|
// Date trails the link line (or wraps below it if it doesn't fit) — reuse the
|
|
// status machinery by substituting the link frame for the last-text-line frame.
|
|
lastTextLineFrame = frame
|
|
lastTextLineTrailingPadding = 0.0
|
|
// Ensure the bubble contains the link even when the status node is hidden. The 1.0
|
|
// is the content top rim; 6.0 the bottom breathing room used elsewhere in this file.
|
|
boundingSize.height = max(boundingSize.height, 1.0 + frame.maxY + 6.0)
|
|
}
|
|
|
|
var statusSuggestedWidthAndContinue: (CGFloat, (CGFloat) -> (CGSize, (ListViewItemUpdateAnimation) -> ChatMessageDateAndStatusNode))?
|
|
if let statusType = statusType {
|
|
var isReplyThread = false
|
|
if case .replyThread = item.chatLocation {
|
|
isReplyThread = true
|
|
}
|
|
|
|
// Measure trailing extent from the line's actual visible RIGHT EDGE (after
|
|
// alignment, in page coords) — not just its intrinsic width. A right-aligned
|
|
// or RTL last line has `lineWidth` worth of glyphs but sits all the way at
|
|
// the right text inset (lineFrame.maxX == text.frame.minX + textItem.width).
|
|
// Feeding the status node just `lineWidth` would let the trail/wrap decision
|
|
// place the date inline with the line — on top of it. `pageHorizontalInset`
|
|
// is the offset between page-coords and status-node-local coords (the status
|
|
// node sits at x=pageHorizontalInset in self, and pageView sits at self-x 0).
|
|
let trailingWidthToMeasure: CGFloat = lastTextLineFrame.map { $0.maxX - pageHorizontalInset } ?? 10000.0
|
|
|
|
let dateLayoutInput: ChatMessageDateAndStatusNode.LayoutInput = .trailingContent(contentWidth: trailingWidthToMeasure, reactionSettings: ChatMessageDateAndStatusNode.TrailingReactionSettings(displayInline: shouldDisplayInlineDateReactions(message: EngineMessage(item.message), isPremium: item.associatedData.isPremium, forceInline: item.associatedData.forceInlineReactions), preferAdditionalInset: false))
|
|
|
|
statusSuggestedWidthAndContinue = statusLayout(ChatMessageDateAndStatusNode.Arguments(
|
|
context: item.context,
|
|
presentationData: item.presentationData,
|
|
edited: edited && !item.presentationData.isPreview,
|
|
impressionCount: !item.presentationData.isPreview ? viewCount : nil,
|
|
dateText: dateText,
|
|
type: statusType,
|
|
layoutInput: dateLayoutInput,
|
|
constrainedSize: CGSize(width: suggestedBoundingWidth, height: .greatestFiniteMagnitude),
|
|
availableReactions: item.associatedData.availableReactions,
|
|
savedMessageTags: item.associatedData.savedMessageTags,
|
|
reactions: item.presentationData.isPreview ? [] : dateReactionsAndPeers.reactions,
|
|
reactionPeers: dateReactionsAndPeers.peers,
|
|
displayAllReactionPeers: item.message.id.peerId.namespace == Namespaces.Peer.CloudUser,
|
|
areReactionsTags: item.topMessage.areReactionsTags(accountPeerId: item.context.account.peerId),
|
|
areStarReactionsEnabled: item.associatedData.areStarReactionsEnabled,
|
|
messageEffect: item.topMessage.messageEffect(availableMessageEffects: item.associatedData.availableMessageEffects),
|
|
replyCount: dateReplies,
|
|
starsCount: starsCount,
|
|
isPinned: item.message.tags.contains(.pinned) && (!item.associatedData.isInPinnedListMode || isReplyThread),
|
|
hasAutoremove: item.message.isSelfExpiring,
|
|
canViewReactionList: canViewMessageReactionList(message: EngineMessage(item.topMessage)),
|
|
animationCache: item.controllerInteraction.presentationContext.animationCache,
|
|
animationRenderer: item.controllerInteraction.presentationContext.animationRenderer
|
|
))
|
|
}
|
|
|
|
if let statusSuggestedWidthAndContinue, !hasDraft {
|
|
// Mirrors TextBubble: max(contentWidth, statusWidth + sideInsets), where
|
|
// sideInsets = left + right text inset (= pageHorizontalInset on each side).
|
|
boundingSize.width = max(boundingSize.width, statusSuggestedWidthAndContinue.0 + pageHorizontalInset * 2.0)
|
|
}
|
|
|
|
return (boundingSize.width, { boundingWidth in
|
|
// Mirrors TextBubble's `boundingWidth - sideInsets` so the right-aligned date
|
|
// lands at the right text inset rather than past the bubble's right edge.
|
|
let statusSizeAndApply = statusSuggestedWidthAndContinue?.1(boundingWidth - pageHorizontalInset * 2.0)
|
|
if let statusSizeAndApply, !hasDraft {
|
|
// Status node anchor Y in the content node's space — mirrors the apply
|
|
// closure below.
|
|
let statusAnchorY: CGFloat
|
|
if let lastTextLineFrame {
|
|
// The renderer draws the baseline at the line frame's maxY, so the
|
|
// visible text sits `trailingBottomPadding` below it. Apply that pad
|
|
// whether the date trails on the line OR wraps onto its own line below:
|
|
// in both cases the date should reference the visible text bottom, not
|
|
// the baseline (mirrors TextBubble, whose status anchors at the text
|
|
// frame's maxY). Without it the wrapped date crowded the last line.
|
|
statusAnchorY = 1.0 + lastTextLineFrame.maxY + lastTextLineTrailingPadding + streamingHeaderOffset
|
|
} else if let pageLayout {
|
|
statusAnchorY = 1.0 + pageLayout.contentSize.height + streamingHeaderOffset
|
|
} else {
|
|
statusAnchorY = 1.0 + streamingHeaderOffset
|
|
}
|
|
// Date's bottom edge: a trailing date sits ~1pt below the anchor; a wrapped
|
|
// date extends `statusHeight` below it. Leave ~6pt to the bubble's bottom
|
|
// edge, matching TextBubble's bottom inset.
|
|
let statusBottomEdge = statusAnchorY + max(1.0, statusSizeAndApply.0.height)
|
|
boundingSize.height = max(boundingSize.height, statusBottomEdge + 6.0)
|
|
}
|
|
|
|
return (boundingSize, { animation, _, info in
|
|
guard let self else {
|
|
return
|
|
}
|
|
self.item = item
|
|
|
|
// If the bubble was recycled onto a different message while a full-text
|
|
// request was in flight, cancel it so this message never shows another's
|
|
// shimmer.
|
|
if let pendingId = self.requestFullRichTextMessageId, pendingId != item.message.id {
|
|
self.requestFullRichTextDisposable?.dispose()
|
|
self.requestFullRichTextDisposable = nil
|
|
self.requestFullRichTextMessageId = nil
|
|
self.updateShowMoreLoading(false)
|
|
}
|
|
|
|
// On the collapse→expand transition (tapping "Show more"), grow the bubble
|
|
// downward in screen space (inverted list offset direction) instead of pushing
|
|
// earlier messages up — matching the audio-transcription expand. The ListView
|
|
// clamps this to what fits, so "if possible" is handled for us. Only fires on a
|
|
// change, and never on the first apply (appliedShowMoreExpanded is nil).
|
|
if let appliedShowMoreExpanded = self.appliedShowMoreExpanded, appliedShowMoreExpanded != showMoreExpanded {
|
|
info?.setInvertOffsetDirection()
|
|
}
|
|
self.appliedShowMoreExpanded = showMoreExpanded
|
|
|
|
animation.animator.updateFrame(layer: self.containerNode.layer, frame: CGRect(origin: CGPoint(x: 1.0, y: 1.0), size: CGSize(width: boundingWidth - 2.0, height: boundingSize.height)), completion: nil)
|
|
self.containerNode.cornerRadius = layoutConstants.image.defaultCornerRadius
|
|
|
|
if let statusSizeAndApply {
|
|
// Match TextBubble: anchor the status node's x at the fixed text-block
|
|
// left edge (not the last line's minX, which is large for nested
|
|
// content and shoves the right-aligned date off the bubble). The status
|
|
// node positions the date trailing/below relative to this origin.
|
|
let statusFrameY: CGFloat
|
|
if let lastTextLineFrame {
|
|
// Apply the text-rect pad (baseline → visible text bottom) for both
|
|
// the trailing and wrapped cases, so the date references the visible
|
|
// text bottom rather than the baseline. Mirrors the measure closure
|
|
// and TextBubble. Without it the wrapped date crowded the last line.
|
|
statusFrameY = 1.0 + lastTextLineFrame.maxY + lastTextLineTrailingPadding
|
|
} else if let pageLayout {
|
|
statusFrameY = 1.0 + pageLayout.contentSize.height
|
|
} else {
|
|
statusFrameY = 1.0
|
|
}
|
|
let statusFrame = CGRect(origin: CGPoint(x: pageHorizontalInset, y: statusFrameY + streamingHeaderOffset), size: statusSizeAndApply.0)
|
|
let statusNode = statusSizeAndApply.1(self.statusNode == nil ? .None : animation)
|
|
|
|
if self.statusNode !== statusNode {
|
|
self.statusNode?.removeFromSupernode()
|
|
self.statusNode = statusNode
|
|
|
|
self.addSubnode(statusNode)
|
|
|
|
statusNode.reactionSelected = { [weak self] _, value, sourceView in
|
|
guard let self, let item = self.item else {
|
|
return
|
|
}
|
|
item.controllerInteraction.updateMessageReaction(item.topMessage, .reaction(value), false, sourceView)
|
|
}
|
|
statusNode.openReactionPreview = { [weak self] gesture, sourceNode, value in
|
|
guard let self, let item = self.item else {
|
|
gesture?.cancel()
|
|
return
|
|
}
|
|
item.controllerInteraction.openMessageReactionContextMenu(item.topMessage, sourceNode, gesture, value)
|
|
}
|
|
statusNode.frame = statusFrame
|
|
} else {
|
|
animation.animator.updatePosition(layer: statusNode.layer, position: statusFrame.center, completion: nil)
|
|
animation.animator.updateBounds(layer: statusNode.layer, bounds: CGRect(origin: .zero, size: statusFrame.size), completion: nil)
|
|
}
|
|
} else if let statusNode = self.statusNode {
|
|
self.statusNode = nil
|
|
statusNode.removeFromSupernode()
|
|
}
|
|
|
|
if let forwardInfo = item.message.forwardInfo, forwardInfo.flags.contains(.isImported), let statusNode = self.statusNode {
|
|
statusNode.pressed = { [weak self] in
|
|
guard let self, let statusNode = self.statusNode, let item = self.item else {
|
|
return
|
|
}
|
|
item.controllerInteraction.displayImportedMessageTooltip(statusNode)
|
|
}
|
|
} else {
|
|
self.statusNode?.pressed = nil
|
|
}
|
|
|
|
if let pageLayout, let pageWebpage, let _ = item.message.richText {
|
|
self.currentPageLayout = (
|
|
suggestedBoundingWidth,
|
|
ObjectIdentifier(item.presentationData.theme.theme),
|
|
self.currentExpandedDetails,
|
|
item.message.stableVersion,
|
|
showMoreExpanded,
|
|
pageLayout
|
|
)
|
|
let pageView = self.ensurePageView(item: item, webpage: pageWebpage, showMoreExpanded: showMoreExpanded)
|
|
pageView.update(layout: pageLayout, theme: pageTheme, animation: animation)
|
|
pageView.frame = CGRect(
|
|
origin: CGPoint(x: -1.0, y: streamingHeaderOffset),
|
|
size: pageLayout.contentSize
|
|
)
|
|
self.updatePageViewVisibilityRect()
|
|
if self.displayContentsUnderSpoilers {
|
|
pageView.setDisplayContentsUnderSpoilers(true, atLocation: nil, animated: false)
|
|
}
|
|
// Continue an in-flight anchor scroll that is waiting on a <details>
|
|
// expansion to re-lay-out. This runs on EVERY apply pass (not only the
|
|
// expand-triggered one), but only does anything while a scroll is pending
|
|
// — and scrollToAnchor is idempotent: each invocation either resolves and
|
|
// scrolls (clearing pending) or expands the next collapsed level, and the
|
|
// progress guard guarantees termination. So an unrelated relayout (theme,
|
|
// width, reactions) that lands mid-expand simply advances/no-ops the loop.
|
|
// Deferred via justDispatch to avoid re-entering layout from this apply.
|
|
if let pendingAnchor = self.pendingScrollAnchor {
|
|
Queue.mainQueue().justDispatch { [weak self] in
|
|
guard let self, self.pendingScrollAnchor == pendingAnchor else {
|
|
return
|
|
}
|
|
self.scrollToAnchor(pendingAnchor)
|
|
}
|
|
}
|
|
} else {
|
|
self.currentPageLayout = nil
|
|
self.pageView?.update(
|
|
layout: InstantPageV2Layout(contentSize: .zero, items: [], detailsIndices: []),
|
|
theme: pageTheme,
|
|
animation: animation
|
|
)
|
|
self.pageViewMessageKey = nil
|
|
}
|
|
|
|
// "Show more" link node.
|
|
if let showMoreLayoutResult, let showMoreFramePageLocal {
|
|
let showMoreTextNode = showMoreLayoutResult.1()
|
|
if self.showMoreTextNode !== showMoreTextNode {
|
|
self.showMoreTextNode?.removeFromSupernode()
|
|
self.showMoreTextNode = showMoreTextNode
|
|
showMoreTextNode.isUserInteractionEnabled = false
|
|
self.addSubnode(showMoreTextNode)
|
|
}
|
|
// Self-coords: the 1.0 mirrors statusFrameY's container offset; the page
|
|
// content sits 1pt below the content-node top.
|
|
showMoreTextNode.frame = CGRect(origin: CGPoint(x: pageHorizontalInset, y: 1.0 + showMoreFramePageLocal.minY), size: showMoreFramePageLocal.size)
|
|
// Keep the shimmer alive across intervening relayouts while loading.
|
|
if self.requestFullRichTextDisposable != nil, self.requestFullRichTextMessageId == item.message.id {
|
|
self.updateShowMoreLoading(true)
|
|
}
|
|
} else {
|
|
if let showMoreTextNode = self.showMoreTextNode {
|
|
self.showMoreTextNode = nil
|
|
showMoreTextNode.removeFromSupernode()
|
|
}
|
|
self.updateShowMoreLoading(false)
|
|
}
|
|
|
|
if let formattedDateUpdatePeriod = pageLayout?.formattedDateUpdatePeriod {
|
|
// Recreate the timer only when the period changes — unlike the TextBubble
|
|
// reference (ChatMessageTextBubbleContentNode), which rebuilds it every apply.
|
|
// The timer fires `requestFullUpdate`, which relays out and re-enters here; at
|
|
// a steady period this guard is false, so the running timer keeps its schedule
|
|
// instead of being reallocated (no per-apply churn, no firing-phase reset, no
|
|
// self-trigger loop). Do not "simplify" this to match the reference.
|
|
if self.relativeDateTimer?.period != formattedDateUpdatePeriod {
|
|
self.relativeDateTimer?.timer.invalidate()
|
|
let timer = SwiftSignalKit.Timer(timeout: Double(formattedDateUpdatePeriod), repeat: true, completion: { [weak self] in
|
|
self?.requestFullUpdate?(ControlledTransition(duration: 0.15, curve: .easeInOut, interactive: false))
|
|
}, queue: Queue.mainQueue())
|
|
self.relativeDateTimer = (timer, formattedDateUpdatePeriod)
|
|
timer.start()
|
|
}
|
|
} else if let (timer, _) = self.relativeDateTimer {
|
|
self.relativeDateTimer = nil
|
|
timer.invalidate()
|
|
}
|
|
|
|
// === Streaming state apply ===
|
|
|
|
// 1. Compute / cache the cost map.
|
|
// Reuse the cost map computed in the layout pass (the bubble's
|
|
// size depended on it) — don't recompute. Keep the previous map
|
|
// alive while a reveal/finalize is still in flight: on a post-
|
|
// streaming pass (hasDraft && hadDraft both false) revealCostMap is
|
|
// nil, and clobbering it would strand the display-link tick (whose
|
|
// guard requires a cost map), aborting the finalize before it can
|
|
// clear the mask and restore the status alpha.
|
|
if let revealCostMap {
|
|
self.currentRevealCostMap = revealCostMap
|
|
} else if self.textRevealController == nil {
|
|
self.currentRevealCostMap = nil
|
|
}
|
|
|
|
// 2. Drive the reveal controller.
|
|
let previousAnimateGlyphCount: Int? = (hasDraft || hadDraft) ? (self.textRevealController?.currentGlyphCount ?? 0) : nil
|
|
if previousAnimateGlyphCount != nil || self.textRevealController != nil || hasDraft || hadDraft {
|
|
if hasDraft {
|
|
self.statusNode?.alpha = 0.0
|
|
}
|
|
// Seed the (possibly freshly rebuilt) V2 view to the reveal cursor's
|
|
// current position so we don't flash full text. Use the live controller
|
|
// count rather than `previousAnimateGlyphCount`, which is nil — and would
|
|
// reset the reveal to 0 — on post-streaming finalize passes where the
|
|
// controller is still animating.
|
|
let seedCount = self.textRevealController?.currentGlyphCount ?? previousAnimateGlyphCount ?? 0
|
|
self.pageView?.applyReveal(revealedCount: seedCount,
|
|
costMap: self.currentRevealCostMap,
|
|
animated: false)
|
|
self.lastAppliedRevealedCount = seedCount
|
|
self.updateTextRevealAnimation(previousGlyphCount: previousAnimateGlyphCount ?? 0,
|
|
hasDraft: hasDraft,
|
|
hadDraft: hadDraft)
|
|
}
|
|
})
|
|
})
|
|
})
|
|
}
|
|
}
|
|
|
|
private func updateTextRevealAnimation(previousGlyphCount: Int, hasDraft: Bool, hadDraft: Bool) {
|
|
let toCount = self.currentRevealCostMap?.total ?? 0
|
|
let now = CACurrentMediaTime()
|
|
|
|
if hasDraft, let controller = self.textRevealController, controller.isFinalizing {
|
|
self.textRevealController = nil
|
|
self.textRevealLink = nil
|
|
}
|
|
|
|
if self.textRevealController == nil && (hasDraft || hadDraft) {
|
|
self.textRevealController = TextRevealController(initialRevealedCount: previousGlyphCount, initialLength: toCount, durationMultiplier: 10.0)
|
|
}
|
|
|
|
guard let controller = self.textRevealController else { return }
|
|
|
|
if hasDraft {
|
|
controller.observeUpdate(latestLength: toCount, at: now)
|
|
} else if hadDraft {
|
|
controller.finalize(finalLength: toCount)
|
|
}
|
|
|
|
if controller.isFinalizing && controller.revealedCount >= Double(controller.latestLength) {
|
|
self.textRevealController = nil
|
|
self.textRevealLink = nil
|
|
self.pageView?.applyReveal(revealedCount: nil, costMap: nil, animated: false)
|
|
self.lastAppliedRevealedCount = 0
|
|
// The cursor already caught up at finalize time, so the display-link `isComplete`
|
|
// branch (which normally restores the status alpha) will never run. Restore it
|
|
// here too, mirroring that branch.
|
|
if let item = self.item, let statusNode = self.statusNode,
|
|
!item.message.attributes.contains(where: { $0 is TypingDraftMessageAttribute }) {
|
|
ContainedViewLayoutTransition.animated(duration: 0.2, curve: .easeInOut).updateAlpha(node: statusNode, alpha: 1.0)
|
|
}
|
|
return
|
|
}
|
|
|
|
guard toCount > 0 else { return }
|
|
|
|
if self.textRevealLink == nil {
|
|
self.textRevealLink = SharedDisplayLinkDriver.shared.add { [weak self] _ in
|
|
guard let self else { return }
|
|
guard let item = self.item else {
|
|
self.textRevealController = nil
|
|
self.textRevealLink = nil
|
|
return
|
|
}
|
|
guard let controller = self.textRevealController, let costMap = self.currentRevealCostMap else {
|
|
self.textRevealLink = nil
|
|
return
|
|
}
|
|
let now = CACurrentMediaTime()
|
|
let (revealedGlyphCount, isComplete) = controller.tick(now: now)
|
|
|
|
if isComplete {
|
|
self.textRevealController = nil
|
|
self.textRevealLink = nil
|
|
self.pageView?.applyReveal(revealedCount: nil, costMap: nil, animated: false)
|
|
self.lastAppliedRevealedCount = 0
|
|
|
|
if let statusNode = self.statusNode,
|
|
!item.message.attributes.contains(where: { $0 is TypingDraftMessageAttribute }) {
|
|
ContainedViewLayoutTransition.animated(duration: 0.2, curve: .easeInOut).updateAlpha(node: statusNode, alpha: 1.0)
|
|
}
|
|
self.requestFullUpdate?(ControlledTransition(duration: 0.15, curve: .easeInOut, interactive: false))
|
|
} else {
|
|
// If the revealed prefix's bottom y would change at the new cursor (i.e.
|
|
// crossing a line/item boundary), trigger a full bubble re-layout so the
|
|
// bubble grows with the reveal. Mirrors TextBubble's
|
|
// `cachedLayout.sizeForCharacterCount(...)` check at lines 1209-1216.
|
|
var requestUpdate = false
|
|
if let pageLayout = self.currentPageLayout?.layout, self.lastAppliedRevealedCount != revealedGlyphCount {
|
|
let prevHeight = costMap.revealedContentSize(revealedCount: self.lastAppliedRevealedCount, layout: pageLayout).height
|
|
let newHeight = costMap.revealedContentSize(revealedCount: revealedGlyphCount, layout: pageLayout).height
|
|
if prevHeight != newHeight {
|
|
requestUpdate = true
|
|
}
|
|
}
|
|
self.pageView?.applyReveal(revealedCount: revealedGlyphCount, costMap: costMap, animated: true)
|
|
self.lastAppliedRevealedCount = revealedGlyphCount
|
|
if requestUpdate {
|
|
self.requestFullUpdate?(ControlledTransition(duration: 0.15, curve: .easeInOut, interactive: false))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
override public func animateInsertion(_ currentTimestamp: Double, duration: Double) {
|
|
if let statusNode = self.statusNode, statusNode.alpha != 0.0 {
|
|
statusNode.layer.animateAlpha(from: 0.0, to: statusNode.alpha, duration: 0.2)
|
|
}
|
|
}
|
|
|
|
override public func animateAdded(_ currentTimestamp: Double, duration: Double) {
|
|
if let statusNode = self.statusNode, statusNode.alpha != 0.0 {
|
|
statusNode.layer.animateAlpha(from: 0.0, to: statusNode.alpha, duration: 0.2)
|
|
}
|
|
}
|
|
|
|
override public func animateRemoved(_ currentTimestamp: Double, duration: Double) {
|
|
if let statusNode = self.statusNode, statusNode.alpha != 0.0 {
|
|
statusNode.layer.animateAlpha(from: statusNode.alpha, to: 0.0, duration: 0.2, removeOnCompletion: false)
|
|
}
|
|
}
|
|
|
|
override public func tapActionAtPoint(_ point: CGPoint, gesture: TapLongTapOrDoubleTapGesture, isEstimating: Bool) -> ChatMessageBubbleContentTapAction {
|
|
if case .tap = gesture {
|
|
} else {
|
|
if let item = self.item, let subject = item.associatedData.subject, case .messageOptions = subject {
|
|
return ChatMessageBubbleContentTapAction(content: .none)
|
|
}
|
|
}
|
|
|
|
if case .tap = gesture, let showMoreTextNode = self.showMoreTextNode, showMoreTextNode.frame.contains(point) {
|
|
// Highlight rect in containerNode-local coords (the highlight overlay lives inside
|
|
// containerNode, which sits at self (1, 1); the text node is on self).
|
|
let rects = [showMoreTextNode.frame.offsetBy(dx: -1.0, dy: -1.0)]
|
|
return ChatMessageBubbleContentTapAction(content: .custom({ [weak self] in
|
|
self?.activateShowMore()
|
|
}), rects: rects)
|
|
}
|
|
|
|
if case .tap = gesture, !self.displayContentsUnderSpoilers, let entityHit = self.entityForTapLocation(point), entityHit.attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.Spoiler)] != nil {
|
|
return ChatMessageBubbleContentTapAction(content: .custom({ [weak self] in
|
|
self?.revealSpoilers(atContentPoint: point)
|
|
}))
|
|
}
|
|
|
|
guard let urlHit = self.urlForTapLocation(point) else {
|
|
if let entityHit = self.entityForTapLocation(point), let content = self.entityTapContent(entityHit.attributes) {
|
|
let rects = self.computeHighlightRects(item: entityHit.item, parentOffset: entityHit.parentOffset, localPoint: entityHit.localPoint)
|
|
return ChatMessageBubbleContentTapAction(
|
|
content: content,
|
|
rects: rects,
|
|
activate: self.makeActivate(item: entityHit.item, parentOffset: entityHit.parentOffset, localPoint: entityHit.localPoint)
|
|
)
|
|
}
|
|
return ChatMessageBubbleContentTapAction(content: .none)
|
|
}
|
|
|
|
let split = self.splitAnchor(urlHit.urlItem.url)
|
|
if split.base.isEmpty, let anchor = split.anchor {
|
|
// Don't accept intra-message anchor taps while the message is still streaming.
|
|
if let item = self.item, item.message.attributes.contains(where: { $0 is TypingDraftMessageAttribute }) {
|
|
return ChatMessageBubbleContentTapAction(content: .none)
|
|
}
|
|
let rects = self.computeHighlightRects(item: urlHit.item, parentOffset: urlHit.parentOffset, localPoint: urlHit.localPoint)
|
|
return ChatMessageBubbleContentTapAction(content: .custom({ [weak self] in
|
|
self?.scrollToAnchor(anchor)
|
|
}), rects: rects)
|
|
}
|
|
if let webpage = self.currentLoadedWebpage(), webpage.content.url == split.base, let anchor = split.anchor {
|
|
return ChatMessageBubbleContentTapAction(content: .custom({ [weak self] in
|
|
self?.scrollToAnchor(anchor)
|
|
}))
|
|
}
|
|
|
|
// Default to concealed=true: InstantPageTextItem does not expose a clean
|
|
// "attribute substring with displayed range" API, so we cannot compare
|
|
// displayed text to the resolved URL the way the chat text bubble does.
|
|
// The chat URL handler will show a confirmation when concealed is true
|
|
// and the visible text differs from the destination — safer default.
|
|
let concealed = true
|
|
let url = ChatMessageBubbleContentTapAction.Url(url: urlHit.urlItem.url, concealed: concealed, allowInlineWebpageResolution: urlHit.urlItem.webpageId != nil)
|
|
let rects = self.computeHighlightRects(item: urlHit.item, parentOffset: urlHit.parentOffset, localPoint: urlHit.localPoint)
|
|
|
|
if let webpageId = urlHit.urlItem.webpageId {
|
|
let split = self.splitAnchor(url.url)
|
|
return ChatMessageBubbleContentTapAction(
|
|
content: .externalInstantPage(url: url, webpageId: webpageId, anchor: split.anchor),
|
|
rects: rects,
|
|
activate: self.makeActivate(item: urlHit.item, parentOffset: urlHit.parentOffset, localPoint: urlHit.localPoint)
|
|
)
|
|
} else {
|
|
return ChatMessageBubbleContentTapAction(
|
|
content: .url(url),
|
|
rects: rects,
|
|
activate: self.makeActivate(item: urlHit.item, parentOffset: urlHit.parentOffset, localPoint: urlHit.localPoint)
|
|
)
|
|
}
|
|
}
|
|
|
|
private func textItemAtLocation(_ location: CGPoint) -> (item: InstantPageTextItem, parentOffset: CGPoint)? {
|
|
guard let pageView = self.pageView else { return nil }
|
|
let local = self.view.convert(location, to: pageView)
|
|
return pageView.textItemAt(point: local)
|
|
}
|
|
|
|
private func urlForTapLocation(_ point: CGPoint) -> (item: InstantPageTextItem, urlItem: InstantPageUrlItem, parentOffset: CGPoint, localPoint: CGPoint)? {
|
|
guard let pageView = self.pageView else { return nil }
|
|
let local = self.view.convert(point, to: pageView)
|
|
return pageView.urlItemAt(point: local).map {
|
|
(item: $0.item, urlItem: $0.urlItem, parentOffset: $0.parentOffset, localPoint: $0.localPoint)
|
|
}
|
|
}
|
|
|
|
private func entityForTapLocation(_ point: CGPoint) -> (item: InstantPageTextItem, parentOffset: CGPoint, localPoint: CGPoint, attributes: [NSAttributedString.Key: Any])? {
|
|
guard let pageView = self.pageView else { return nil }
|
|
let local = self.view.convert(point, to: pageView)
|
|
guard let hit = pageView.textItemAt(point: local) else { return nil }
|
|
let localPoint = CGPoint(x: local.x - hit.parentOffset.x, y: local.y - hit.parentOffset.y)
|
|
guard let (_, attributes) = hit.item.attributesAtPoint(localPoint, orNearest: false) else { return nil }
|
|
return (item: hit.item, parentOffset: hit.parentOffset, localPoint: localPoint, attributes: attributes)
|
|
}
|
|
|
|
private func revealSpoilers(atContentPoint point: CGPoint) {
|
|
guard !self.displayContentsUnderSpoilers, let pageView = self.pageView else {
|
|
return
|
|
}
|
|
self.displayContentsUnderSpoilers = true
|
|
let local = self.view.convert(point, to: pageView)
|
|
pageView.setDisplayContentsUnderSpoilers(true, atLocation: local, animated: true)
|
|
}
|
|
|
|
private func entityTapContent(_ attributes: [NSAttributedString.Key: Any]) -> ChatMessageBubbleContentTapAction.Content? {
|
|
if let mention = attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.PeerMention)] as? TelegramPeerMention {
|
|
return .peerMention(peerId: mention.peerId, mention: mention.mention, openProfile: false)
|
|
} else if let peerName = attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.PeerTextMention)] as? String {
|
|
return .textMention(peerName)
|
|
} else if let botCommand = attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.BotCommand)] as? String {
|
|
return .botCommand(botCommand)
|
|
} else if let hashtag = attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.Hashtag)] as? TelegramHashtag {
|
|
// Cashtags are carried as a Hashtag attribute (no dedicated cashtag key/tap-action exists);
|
|
// the leading "$" in the string distinguishes them, and the chat hashtag handler searches both.
|
|
return .hashtag(hashtag.peerName, hashtag.hashtag)
|
|
} else if let bankCard = attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.BankCard)] as? String {
|
|
return .bankCard(bankCard)
|
|
} else if let date = attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.Date)] as? Int32 {
|
|
// The displayed string is unused downstream (ChatMessageBubbleItemNode matches `.date(date, _)`).
|
|
return .date(date, "")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
/// Bridges an InstantPageUrlItem (used by the gallery's caption URL handler) to the
|
|
/// chat layer's URL handler. `concealed: true` matches `tapActionAtPoint` for the same
|
|
/// reason: V2 cannot reliably compare displayed link text to the resolved URL.
|
|
private func openInstantPageUrl(_ url: InstantPageUrlItem) {
|
|
guard let item = self.item else { return }
|
|
item.controllerInteraction.openUrl(ChatControllerInteraction.OpenUrl(
|
|
url: url.url,
|
|
concealed: true,
|
|
allowInlineWebpageResolution: url.webpageId != nil
|
|
))
|
|
}
|
|
|
|
private func computeHighlightRects(item: InstantPageTextItem, parentOffset: CGPoint, localPoint: CGPoint) -> [CGRect] {
|
|
// Text item returns rects in its local coords; translate back into containerNode-local coords.
|
|
// containerNode is offset by (1, 1) from the bubble-content-node, but the highlight overlay lives
|
|
// *inside* containerNode, so we use layout-coords (= containerNode-local) for the rects.
|
|
let originX = parentOffset.x
|
|
let originY = parentOffset.y
|
|
return item.linkSelectionRects(at: localPoint).map { rect in
|
|
rect.offsetBy(dx: originX, dy: originY)
|
|
}
|
|
}
|
|
|
|
private func makeActivate(item: InstantPageTextItem, parentOffset: CGPoint, localPoint: CGPoint) -> (() -> Promise<Bool>?)? {
|
|
return { [weak self, weak item] in
|
|
guard let self else {
|
|
return nil
|
|
}
|
|
let promise = Promise<Bool>()
|
|
self.linkProgressDisposable?.dispose()
|
|
if self.linkProgressRects != nil {
|
|
self.linkProgressRects = nil
|
|
self.updateLinkProgressState()
|
|
}
|
|
self.linkProgressDisposable = (promise.get() |> deliverOnMainQueue).startStrict(next: { [weak self] value in
|
|
guard let self else {
|
|
return
|
|
}
|
|
let updated: [CGRect]?
|
|
if value, let item {
|
|
updated = self.computeHighlightRects(item: item, parentOffset: parentOffset, localPoint: localPoint)
|
|
} else {
|
|
updated = nil
|
|
}
|
|
let changed: Bool
|
|
if let lhs = self.linkProgressRects, let rhs = updated {
|
|
changed = lhs != rhs
|
|
} else {
|
|
changed = (self.linkProgressRects == nil) != (updated == nil)
|
|
}
|
|
if changed {
|
|
self.linkProgressRects = updated
|
|
self.updateLinkProgressState()
|
|
}
|
|
})
|
|
return promise
|
|
}
|
|
}
|
|
|
|
private func updateLinkProgressState() {
|
|
guard let messageItem = self.item else {
|
|
return
|
|
}
|
|
if let rects = self.linkProgressRects, !rects.isEmpty {
|
|
let linkProgressView: TextLoadingEffectView
|
|
if let current = self.linkProgressView {
|
|
linkProgressView = current
|
|
} else {
|
|
linkProgressView = TextLoadingEffectView(frame: CGRect())
|
|
self.linkProgressView = linkProgressView
|
|
self.containerNode.view.addSubview(linkProgressView)
|
|
}
|
|
linkProgressView.frame = self.containerNode.bounds
|
|
|
|
let progressColor: UIColor = messageItem.message.effectivelyIncoming(messageItem.context.account.peerId)
|
|
? messageItem.presentationData.theme.theme.chat.message.incoming.linkHighlightColor
|
|
: messageItem.presentationData.theme.theme.chat.message.outgoing.linkHighlightColor
|
|
|
|
linkProgressView.update(color: progressColor, size: self.containerNode.bounds.size, rects: rects)
|
|
} else if let linkProgressView = self.linkProgressView {
|
|
self.linkProgressView = nil
|
|
linkProgressView.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.2, removeOnCompletion: false, completion: { [weak linkProgressView] _ in
|
|
linkProgressView?.removeFromSuperview()
|
|
})
|
|
}
|
|
}
|
|
|
|
override public func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
|
|
if let statusNode = self.statusNode, statusNode.supernode != nil, let result = statusNode.hitTest(self.view.convert(point, to: statusNode.view), with: event) {
|
|
return result
|
|
}
|
|
return super.hitTest(point, with: event)
|
|
}
|
|
|
|
override public func updateTouchesAtPoint(_ point: CGPoint?) {
|
|
guard let messageItem = self.item else {
|
|
return
|
|
}
|
|
|
|
var rects: [CGRect]?
|
|
if let point {
|
|
if let showMoreTextNode = self.showMoreTextNode, showMoreTextNode.frame.contains(point) {
|
|
rects = [showMoreTextNode.frame.offsetBy(dx: -1.0, dy: -1.0)]
|
|
} else if let urlHit = self.urlForTapLocation(point) {
|
|
rects = self.computeHighlightRects(item: urlHit.item, parentOffset: urlHit.parentOffset, localPoint: urlHit.localPoint)
|
|
} else if let entityHit = self.entityForTapLocation(point), self.entityTapContent(entityHit.attributes) != nil {
|
|
rects = self.computeHighlightRects(item: entityHit.item, parentOffset: entityHit.parentOffset, localPoint: entityHit.localPoint)
|
|
}
|
|
}
|
|
|
|
if let rects, !rects.isEmpty {
|
|
let highlightingNode: LinkHighlightingNode
|
|
if let current = self.linkHighlightingNode {
|
|
highlightingNode = current
|
|
} else {
|
|
let color: UIColor = messageItem.message.effectivelyIncoming(messageItem.context.account.peerId)
|
|
? messageItem.presentationData.theme.theme.chat.message.incoming.linkHighlightColor
|
|
: messageItem.presentationData.theme.theme.chat.message.outgoing.linkHighlightColor
|
|
highlightingNode = LinkHighlightingNode(color: color)
|
|
highlightingNode.useModernPathCalculation = true
|
|
self.linkHighlightingNode = highlightingNode
|
|
self.containerNode.insertSubnode(highlightingNode, at: 0)
|
|
}
|
|
highlightingNode.frame = self.containerNode.bounds
|
|
highlightingNode.updateRects(rects)
|
|
} else if let highlightingNode = self.linkHighlightingNode {
|
|
self.linkHighlightingNode = nil
|
|
highlightingNode.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.18, removeOnCompletion: false, completion: { [weak highlightingNode] _ in
|
|
highlightingNode?.removeFromSupernode()
|
|
})
|
|
}
|
|
}
|
|
|
|
override public func updateSearchTextHighlightState(text: String?, messages: [EngineMessage.Index]?) {
|
|
}
|
|
|
|
override public func willUpdateIsExtractedToContextPreview(_ value: Bool) {
|
|
if !value, let textSelectionNode = self.textSelectionNode {
|
|
self.textSelectionNode = nil
|
|
self.textSelectionAdapter = nil
|
|
textSelectionNode.highlightAreaNode.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.2, removeOnCompletion: false)
|
|
textSelectionNode.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.2, removeOnCompletion: false, completion: { [weak textSelectionNode] _ in
|
|
textSelectionNode?.highlightAreaNode.removeFromSupernode()
|
|
textSelectionNode?.removeFromSupernode()
|
|
})
|
|
}
|
|
}
|
|
|
|
override public func updateIsExtractedToContextPreview(_ value: Bool) {
|
|
guard value, self.textSelectionNode == nil, let messageItem = self.item, self.currentPageLayout?.layout != nil, let pageView = self.pageView, let rootNode = messageItem.controllerInteraction.chatControllerNode() else {
|
|
return
|
|
}
|
|
|
|
// pageView sits at (-1, 0) inside containerNode; the adapter is placed at
|
|
// containerNode.bounds, so shift each item's page-space origin into
|
|
// containerNode-local coords for the adapter to operate in.
|
|
let pageOrigin = pageView.frame.origin
|
|
let entries = pageView.selectableTextItems()
|
|
.filter { $0.item.selectable && !$0.item.attributedString.string.isEmpty }
|
|
.map { entry in
|
|
InstantPageMultiTextAdapter.Entry(
|
|
item: entry.item,
|
|
frameOrigin: CGPoint(
|
|
x: entry.parentOffset.x + pageOrigin.x,
|
|
y: entry.parentOffset.y + pageOrigin.y
|
|
)
|
|
)
|
|
}
|
|
guard !entries.isEmpty else {
|
|
return
|
|
}
|
|
|
|
let adapter = InstantPageMultiTextAdapter(entries: entries)
|
|
adapter.frame = self.containerNode.bounds
|
|
self.textSelectionAdapter = adapter
|
|
self.containerNode.addSubnode(adapter)
|
|
|
|
let incoming = messageItem.message.effectivelyIncoming(messageItem.context.account.peerId)
|
|
let theme = messageItem.presentationData.theme.theme
|
|
let selectionColor = incoming ? theme.chat.message.incoming.textSelectionColor : theme.chat.message.outgoing.textSelectionColor
|
|
let knobColor = incoming ? theme.chat.message.incoming.textSelectionKnobColor : theme.chat.message.outgoing.textSelectionKnobColor
|
|
|
|
let textSelectionNode = TextSelectionNode(
|
|
theme: TextSelectionTheme(selection: selectionColor, knob: knobColor, isDark: theme.overallDarkAppearance),
|
|
strings: messageItem.presentationData.strings,
|
|
textNodeOrView: .node(adapter),
|
|
updateIsActive: { _ in },
|
|
present: { [weak self] c, a in
|
|
guard let self, let item = self.item else {
|
|
return
|
|
}
|
|
if let subject = item.associatedData.subject, case let .messageOptions(_, _, info) = subject, case .reply = info {
|
|
item.controllerInteraction.presentControllerInCurrent(c, a)
|
|
} else {
|
|
item.controllerInteraction.presentGlobalOverlayController(c, a)
|
|
}
|
|
},
|
|
rootView: { [weak rootNode] in
|
|
return rootNode?.view
|
|
},
|
|
performAction: { [weak self] text, action in
|
|
guard let self, let item = self.item else {
|
|
return
|
|
}
|
|
if case .copy = action,
|
|
let range = self.textSelectionNode?.getSelection(),
|
|
range.length > 0,
|
|
let adapter = self.textSelectionAdapter {
|
|
let markdown = adapter.markdownForRange(range)
|
|
if !markdown.isEmpty {
|
|
item.controllerInteraction.performTextSelectionAction(item.message, true, NSAttributedString(string: markdown), nil, .copy)
|
|
return
|
|
}
|
|
}
|
|
item.controllerInteraction.performTextSelectionAction(item.message, true, text, nil, action)
|
|
}
|
|
)
|
|
|
|
let enableCopy = (!messageItem.associatedData.isCopyProtectionEnabled && !messageItem.message.isCopyProtected()) || messageItem.message.id.peerId.isVerificationCodes
|
|
textSelectionNode.enableCopy = enableCopy
|
|
|
|
var enableOtherActions = true
|
|
if let subject = messageItem.associatedData.subject, case let .messageOptions(_, _, info) = subject, case .reply = info {
|
|
enableOtherActions = false
|
|
}
|
|
|
|
textSelectionNode.enableQuote = false
|
|
textSelectionNode.enableTranslate = enableOtherActions
|
|
textSelectionNode.enableShare = enableOtherActions && enableCopy
|
|
textSelectionNode.enableLookup = true
|
|
textSelectionNode.menuSkipCoordnateConversion = !enableOtherActions
|
|
|
|
textSelectionNode.frame = self.containerNode.bounds
|
|
textSelectionNode.highlightAreaNode.frame = self.containerNode.bounds
|
|
self.containerNode.insertSubnode(textSelectionNode.highlightAreaNode, at: 0)
|
|
self.containerNode.addSubnode(textSelectionNode)
|
|
self.textSelectionNode = textSelectionNode
|
|
}
|
|
|
|
override public func transitionNode(messageId: EngineMessage.Id, media: EngineRawMedia, adjustRect: Bool) -> (ASDisplayNode, CGRect, () -> (UIView?, UIView?))? {
|
|
// V2 V0: media items render as gray placeholders; no transition node is exposed.
|
|
return nil
|
|
}
|
|
|
|
override public func updateHiddenMedia(_ media: [EngineRawMedia]?) -> Bool {
|
|
// V2 V0: media items render as gray placeholders; nothing to hide.
|
|
return false
|
|
}
|
|
|
|
override public func getAnchorRect(anchor: String) -> CGRect? {
|
|
guard let pageView = self.pageView, let rect = pageView.anchorFrame(name: anchor) else {
|
|
return nil
|
|
}
|
|
// Small top breathing room so the target isn't flush against the content-area top
|
|
// (cf. V1 InstantPageControllerNode's -10 offset). The chat scroll consumes only the
|
|
// returned rect's minY (ChatController's scrollToMessageIdWithAnchor → .bottom(anchorY)),
|
|
// so pulling minY up by the margin is what lands the anchor below the top edge; the rect
|
|
// is grown to keep maxY stable should a future caller use the full rect (e.g. a highlight).
|
|
let topMargin: CGFloat = 8.0
|
|
let adjusted = CGRect(x: rect.minX, y: max(0.0, rect.minY - topMargin), width: rect.width, height: rect.height + topMargin)
|
|
return self.view.convert(adjusted, from: pageView)
|
|
}
|
|
|
|
override public func reactionTargetView(value: MessageReaction.Reaction) -> UIView? {
|
|
if let statusNode = self.statusNode, !statusNode.isHidden {
|
|
return statusNode.reactionView(value: value)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
override public func messageEffectTargetView() -> UIView? {
|
|
if let statusNode = self.statusNode, !statusNode.isHidden {
|
|
return statusNode.messageEffectTargetView()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
override public func getStatusNode() -> ASDisplayNode? {
|
|
return self.statusNode
|
|
}
|
|
|
|
private func splitAnchor(_ url: String) -> (base: String, anchor: String?) {
|
|
if let anchorRange = url.range(of: "#") {
|
|
let anchor = String(url[anchorRange.upperBound...]).removingPercentEncoding
|
|
let base = String(url[..<anchorRange.lowerBound])
|
|
return (base, anchor)
|
|
}
|
|
return (url, nil)
|
|
}
|
|
|
|
private func currentLoadedWebpage() -> TelegramMediaWebpage? {
|
|
return nil // V2 V0: media items are placeholders; no inline webpage resolution.
|
|
}
|
|
|
|
private func scrollToAnchor(_ anchor: String) {
|
|
guard let item = self.item else {
|
|
return
|
|
}
|
|
// Empty fragment ("#") is a no-op.
|
|
if anchor.isEmpty {
|
|
self.clearPendingScroll()
|
|
return
|
|
}
|
|
// 1. Anchor is in the currently laid-out content → scroll now.
|
|
if self.pageView?.anchorFrame(name: anchor) != nil {
|
|
self.clearPendingScroll()
|
|
item.controllerInteraction.scrollToMessageIdWithAnchor(item.message.index, anchor)
|
|
return
|
|
}
|
|
// 2. Not laid out — it may be buried in a collapsed <details>. Find the path and expand
|
|
// the first collapsed details on it, then retry after the relayout (post-relayout hook).
|
|
let anchorExpanded = (self.showMoreExpanded?.messageId == item.message.id) ? (self.showMoreExpanded?.value ?? false) : false
|
|
guard let instantPage = item.message.richText.map({ (anchorExpanded ? $0.fullInstantPage : nil) ?? $0.instantPage }),
|
|
let path = instantPageAnchorPath(in: instantPage, name: anchor),
|
|
!path.isEmpty,
|
|
let collapsedIndex = self.pageView?.firstCollapsedDetails(forOrdinalPath: path)
|
|
else {
|
|
self.clearPendingScroll()
|
|
return
|
|
}
|
|
// Progress guard: if expanding this same index last pass didn't move us forward, stop.
|
|
if self.lastExpandedPendingDetailsIndex == collapsedIndex {
|
|
self.clearPendingScroll()
|
|
return
|
|
}
|
|
self.currentExpandedDetails[collapsedIndex] = true
|
|
self.pendingScrollAnchor = anchor
|
|
self.lastExpandedPendingDetailsIndex = collapsedIndex
|
|
item.controllerInteraction.requestMessageUpdate(item.message.id, false, nil)
|
|
}
|
|
|
|
private func clearPendingScroll() {
|
|
self.pendingScrollAnchor = nil
|
|
self.lastExpandedPendingDetailsIndex = nil
|
|
}
|
|
|
|
// Fired by the "Show more" tap action. Expands this bubble to the full page: if the attribute
|
|
// already carries a cached fullInstantPage, expands immediately; otherwise fetches it (which
|
|
// persists it onto the message) while shimmering the link, then expands. Guards against a
|
|
// second request while one is in flight, and against re-expanding an already-expanded bubble.
|
|
private func activateShowMore() {
|
|
guard let item = self.item, let attribute = item.message.richText else {
|
|
return
|
|
}
|
|
let messageId = item.message.id
|
|
if let state = self.showMoreExpanded, state.messageId == messageId, state.value {
|
|
return
|
|
}
|
|
// Full page already cached on the attribute — expand immediately, no network, no shimmer.
|
|
if attribute.fullInstantPage != nil {
|
|
self.showMoreExpanded = (messageId, true)
|
|
item.controllerInteraction.requestMessageUpdate(messageId, false, nil)
|
|
return
|
|
}
|
|
// Otherwise fetch it; keep the link visible and shimmering until it arrives.
|
|
if self.requestFullRichTextDisposable != nil {
|
|
return
|
|
}
|
|
self.requestFullRichTextMessageId = messageId
|
|
self.updateShowMoreLoading(true)
|
|
self.requestFullRichTextDisposable = (item.context.engine.messages.requestFullRichText(id: messageId)
|
|
|> deliverOnMainQueue).startStrict(next: { [weak self] result in
|
|
guard let self else {
|
|
return
|
|
}
|
|
if result?.fullInstantPage != nil {
|
|
self.showMoreExpanded = (messageId, true)
|
|
}
|
|
self.finishShowMore()
|
|
if let item = self.item, item.message.id == messageId {
|
|
item.controllerInteraction.requestMessageUpdate(messageId, false, nil)
|
|
}
|
|
}, completed: { [weak self] in
|
|
self?.finishShowMore()
|
|
})
|
|
}
|
|
|
|
// Clears the in-flight request state and stops the shimmer. Invoked from both the request's
|
|
// `next` and `completed` handlers (the signal emits one value then completes); idempotent.
|
|
private func finishShowMore() {
|
|
self.requestFullRichTextDisposable?.dispose()
|
|
self.requestFullRichTextDisposable = nil
|
|
self.requestFullRichTextMessageId = nil
|
|
self.updateShowMoreLoading(false)
|
|
}
|
|
|
|
// Shows/hides the shimmer over the "Show more" text node. The TextLoadingEffectView masks
|
|
// itself with the text node's own range rects, so it is placed at the text node's frame in
|
|
// self-coordinates (same parent). Removing the text node also removes the shimmer.
|
|
private func updateShowMoreLoading(_ loading: Bool) {
|
|
guard let item = self.item, let showMoreTextNode = self.showMoreTextNode else {
|
|
if let loadingView = self.showMoreLoadingView {
|
|
self.showMoreLoadingView = nil
|
|
loadingView.removeFromSuperview()
|
|
}
|
|
return
|
|
}
|
|
if loading {
|
|
let loadingView: TextLoadingEffectView
|
|
if let current = self.showMoreLoadingView {
|
|
loadingView = current
|
|
} else {
|
|
loadingView = TextLoadingEffectView(frame: CGRect())
|
|
self.showMoreLoadingView = loadingView
|
|
self.view.addSubview(loadingView)
|
|
}
|
|
loadingView.frame = showMoreTextNode.frame
|
|
let color = item.message.effectivelyIncoming(item.context.account.peerId)
|
|
? item.presentationData.theme.theme.chat.message.incoming.linkTextColor
|
|
: item.presentationData.theme.theme.chat.message.outgoing.linkTextColor
|
|
let title = item.presentationData.strings.Chat_RichText_ShowMore
|
|
loadingView.update(color: color, textNode: showMoreTextNode, range: NSRange(location: 0, length: (title as NSString).length))
|
|
} else if let loadingView = self.showMoreLoadingView {
|
|
self.showMoreLoadingView = nil
|
|
loadingView.removeFromSuperview()
|
|
}
|
|
}
|
|
}
|