Highlight tasks from reply/service messages.

Telegram/SourceFiles/data/data_msg_id.h

@@ -172,6 +172,16 @@ inline QDebug operator<<(QDebug debug, const FullMsgId &fullMsgId) {
 
 Q_DECLARE_METATYPE(FullMsgId);
 
+struct MessageHighlightId {
+	TextWithEntities quote;
+	int quoteOffset = 0;
+	int todoItemId = 0;
+
+	[[nodiscard]] bool empty() const {
+		return quote.empty() && !todoItemId;
+	}
+};
+
 struct FullReplyTo {
 	FullMsgId messageId;
 	TextWithEntities quote;
@@ -181,6 +191,9 @@ struct FullReplyTo {
 	int quoteOffset = 0;
 	int todoItemId = 0;
 
+	[[nodiscard]] MessageHighlightId highlight() const {
+		return { quote, quoteOffset, todoItemId };
+	}
 	[[nodiscard]] bool replying() const {
 		return messageId || (storyId && storyId.peer);
 	}

Telegram/SourceFiles/dialogs/dialogs_widget.cpp

@@ -898,10 +898,7 @@ void Widget::chosenRow(const ChosenRow &row) {
 	} else if (const auto topic = row.key.topic()) {
 		auto params = Window::SectionShow(
 			Window::SectionShow::Way::ClearStack);
-		params.highlightPart.text = _searchState.query;
-		if (!params.highlightPart.empty()) {
-			params.highlightPartOffsetHint = kSearchQueryOffsetHint;
-		}
+		params.highlight = Window::SearchHighlightId(_searchState.query);
 		if (row.newWindow) {
 			controller()->showInNewWindow(
 				Window::SeparateId(topic),
@@ -972,10 +969,7 @@ void Widget::chosenRow(const ChosenRow &row) {
 		) ? ShowAtUnreadMsgId : row.message.fullId.msg;
 		auto params = Window::SectionShow(
 			Window::SectionShow::Way::ClearStack);
-		params.highlightPart.text = _searchState.query;
-		if (!params.highlightPart.empty()) {
-			params.highlightPartOffsetHint = kSearchQueryOffsetHint;
-		}
+		params.highlight = Window::SearchHighlightId(_searchState.query);
 		if (row.newWindow) {
 			controller()->showInNewWindow(peer, showAtMsgId);
 		} else {

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -622,10 +622,10 @@ void HistoryInner::setupSwipeReplyAndBack() {
 					: still)->fullId();
 				_widget->replyToMessage({
 					.messageId = replyToItemId,
-					.quote = selected.text,
-					.quoteOffset = selected.offset,
+					.quote = selected.highlight.quote,
+					.quoteOffset = selected.highlight.quoteOffset,
 				});
-				if (!selected.text.empty()) {
+				if (!selected.highlight.quote.empty()) {
 					_widget->clearSelected();
 				}
 			};
@@ -2712,16 +2712,14 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 					Ui::Text::FixAmpersandInAction);
 			const auto replyToItem = selected.item ? selected.item : item;
 			const auto itemId = replyToItem->fullId();
-			const auto quote = selected.text;
-			const auto quoteOffset = selected.offset;
 			_menu->addAction(std::move(text), [=] {
 				_widget->replyToMessage({
 					.messageId = itemId,
-					.quote = quote,
-					.quoteOffset = quoteOffset,
+					.quote = selected.highlight.quote,
+					.quoteOffset = selected.highlight.quoteOffset,
 					.todoItemId = todoListTaskId,
 				});
-				if (!quote.empty()) {
+				if (!selected.highlight.quote.empty()) {
 					_widget->clearSelected();
 				}
 			}, &st::menuIconReply);

Telegram/SourceFiles/history/history_item.cpp

@@ -909,12 +909,26 @@ void HistoryItem::updateServiceDependent(bool force) {
 	}
 
 	if (!dependent->lnk) {
+		auto todoItemId = 0;
+		if (const auto done = Get<HistoryServiceTodoCompletions>()) {
+			const auto &items = !done->completed.empty()
+				? done->completed
+				: done->incompleted;
+			if (items.size() == 1) {
+				todoItemId = items.front();
+			}
+		} else if (const auto append = Get<HistoryServiceTodoAppendTasks>()) {
+			if (append->list.size() == 1) {
+				todoItemId = append->list.front().id;
+			}
+		}
 		dependent->lnk = JumpToMessageClickHandler(
 			(dependent->peerId
 				? _history->owner().peer(dependent->peerId)
 				: _history->peer),
 			dependent->msgId,
-			fullId());
+			fullId(),
+			{ .todoItemId = todoItemId });
 	}
 	auto gotDependencyItem = false;
 	if (!dependent->msg) {

Telegram/SourceFiles/history/history_item_helpers.cpp

@@ -713,22 +713,19 @@ bool IsItemScheduledUntilOnline(not_null<const HistoryItem*> item) {
 ClickHandlerPtr JumpToMessageClickHandler(
 		not_null<HistoryItem*> item,
 		FullMsgId returnToId,
-		TextWithEntities highlightPart,
-		int highlightPartOffsetHint) {
+		MessageHighlightId highlight) {
 	return JumpToMessageClickHandler(
 		item->history()->peer,
 		item->id,
 		returnToId,
-		std::move(highlightPart),
-		highlightPartOffsetHint);
+		std::move(highlight));
 }
 
 ClickHandlerPtr JumpToMessageClickHandler(
 		not_null<PeerData*> peer,
 		MsgId msgId,
 		FullMsgId returnToId,
-		TextWithEntities highlightPart,
-		int highlightPartOffsetHint) {
+		MessageHighlightId highlight) {
 	return std::make_shared<LambdaClickHandler>([=] {
 		const auto separate = Core::App().separateWindowFor(peer);
 		const auto controller = separate
@@ -738,8 +735,7 @@ ClickHandlerPtr JumpToMessageClickHandler(
 			auto params = Window::SectionShow{
 				Window::SectionShow::Way::Forward
 			};
-			params.highlightPart = highlightPart;
-			params.highlightPartOffsetHint = highlightPartOffsetHint;
+			params.highlight = highlight;
 			params.origin = Window::SectionShow::OriginMessage{
 				returnToId
 			};

Telegram/SourceFiles/history/history_item_helpers.h

@@ -229,13 +229,11 @@ private:
 	not_null<PeerData*> peer,
 	MsgId msgId,
 	FullMsgId returnToId = FullMsgId(),
-	TextWithEntities highlightPart = {},
-	int highlightPartOffsetHint = 0);
+	MessageHighlightId highlight = {});
 [[nodiscard]] ClickHandlerPtr JumpToMessageClickHandler(
 	not_null<HistoryItem*> item,
 	FullMsgId returnToId = FullMsgId(),
-	TextWithEntities highlightPart = {},
-	int highlightPartOffsetHint = 0);
+	MessageHighlightId highlight = {});
 [[nodiscard]] ClickHandlerPtr JumpToStoryClickHandler(
 	not_null<Data::Story*> story);
 ClickHandlerPtr JumpToStoryClickHandler(

Telegram/SourceFiles/history/history_view_highlight_manager.cpp

@@ -65,6 +65,7 @@ Ui::ChatPaintHighlight ElementHighlighter::state(
 	if (item->fullId() == _highlighted.itemId) {
 		auto result = _animation.state();
 		result.range = _highlighted.part;
+		result.todoItemId = _highlighted.todoListId;
 		return result;
 	}
 	return {};
@@ -82,19 +83,27 @@ ElementHighlighter::Highlight ElementHighlighter::computeHighlight(
 		const auto i = ranges::find(group->items, item);
 		if (i != end(group->items)) {
 			const auto index = int(i - begin(group->items));
-			if (quote.text.empty()) {
+			if (quote.highlight.empty()) {
 				return { leaderId, AddGroupItemSelection({}, index) };
 			} else if (const auto leaderView = _viewForItem(leader)) {
-				return { leaderId, leaderView->selectionFromQuote(quote) };
+				return {
+					leaderId,
+					leaderView->selectionFromQuote(quote),
+					quote.highlight.todoItemId,
+				};
 			}
 		}
-		return { leaderId };
-	} else if (quote.text.empty()) {
-		return { item->fullId() };
+		return { leaderId, {}, quote.highlight.todoItemId };
+	} else if (quote.highlight.quote.empty()) {
+		return { item->fullId(), {}, quote.highlight.todoItemId };
 	} else if (const auto view = _viewForItem(item)) {
-		return { item->fullId(), view->selectionFromQuote(quote) };
+		return {
+			item->fullId(),
+			view->selectionFromQuote(quote),
+			quote.highlight.todoItemId,
+		};
 	}
-	return { item->fullId() };
+	return { item->fullId(), {}, quote.highlight.todoItemId };
 }
 
 void ElementHighlighter::highlight(Highlight data) {
@@ -108,7 +117,7 @@ void ElementHighlighter::highlight(Highlight data) {
 				}
 			}
 			_highlighted = data;
-			_animation.start(!data.part.empty()
+			_animation.start((!data.part.empty() || data.todoListId)
 				&& !IsSubGroupSelection(data.part));
 
 			repaintHighlightedItem(view);

Telegram/SourceFiles/history/history_view_highlight_manager.h

@@ -65,6 +65,7 @@ private:
 	struct Highlight {
 		FullMsgId itemId;
 		TextSelection part;
+		int todoListId = 0;
 
 		explicit operator bool() const {
 			return itemId.operator bool();

Telegram/SourceFiles/history/history_widget.cpp

@@ -5640,8 +5640,7 @@ void HistoryWidget::switchToSearch(QString query) {
 			const auto item = activation.item;
 			auto params = ::Window::SectionShow(
 				::Window::SectionShow::Way::ClearStack);
-			params.highlightPart = { activation.query };
-			params.highlightPartOffsetHint = kSearchQueryOffsetHint;
+			params.highlight = Window::SearchHighlightId(activation.query);
 			controller()->showPeerHistory(
 				item->history()->peer->id,
 				params,
@@ -6743,8 +6742,7 @@ int HistoryWidget::countInitialScrollTop() {
 
 			enqueueMessageHighlight({
 				item,
-				base::take(_showAtMsgParams.highlightPart),
-				base::take(_showAtMsgParams.highlightPartOffsetHint),
+				base::take(_showAtMsgParams.highlight),
 			});
 			const auto result = itemTopForHighlight(view);
 			createUnreadBarIfBelowVisibleArea(result);
@@ -7501,12 +7499,7 @@ void HistoryWidget::editDraftOptions() {
 
 void HistoryWidget::jumpToReply(FullReplyTo to) {
 	if (const auto item = session().data().message(to.messageId)) {
-		JumpToMessageClickHandler(
-			item,
-			{},
-			to.quote,
-			to.quoteOffset
-		)->onClick({});
+		JumpToMessageClickHandler(item, {}, to.highlight())->onClick({});
 	}
 }
 

Telegram/SourceFiles/history/view/controls/history_view_draft_options.cpp

@@ -783,7 +783,7 @@ void DraftOptionsBox(
 			box->setTitle(hasLink
 				? tr::lng_link_options_header()
 				: hasReply
-				? (state->quote.current().text.empty()
+				? (state->quote.current().highlight.quote.empty()
 					? tr::lng_reply_options_header()
 					: tr::lng_reply_options_quote())
 				: (forwardCount == 1)
@@ -807,10 +807,12 @@ void DraftOptionsBox(
 		auto result = draft.reply;
 		if (const auto current = state->quote.current()) {
 			result.messageId = current.item->fullId();
-			result.quote = current.text;
-			result.quoteOffset = current.offset;
+			result.quote = current.highlight.quote;
+			result.quoteOffset = current.highlight.quoteOffset;
+//			result.todoItemId = current.highlight.todoItemId;
 		} else {
 			result.quote = {};
+//			result.todoItemId = 0;
 		}
 		return result;
 	};
@@ -1112,7 +1114,7 @@ void DraftOptionsBox(
 		state->quote.value(),
 		state->shown.value()
 	) | rpl::map([=](const SelectedQuote &quote, Section shown) {
-		return (quote.text.empty() || shown != Section::Reply)
+		return (quote.highlight.quote.empty() || shown != Section::Reply)
 			? tr::lng_settings_save()
 			: tr::lng_reply_quote_selected();
 	}) | rpl::flatten_latest();

Telegram/SourceFiles/history/view/history_view_chat_section.cpp

@@ -119,12 +119,10 @@ rpl::producer<Ui::MessageBarContent> RootViewContent(
 ChatMemento::ChatMemento(
 	ChatViewId id,
 	MsgId highlightId,
-	const TextWithEntities &highlightPart,
-	int highlightPartOffsetHint)
+	MessageHighlightId highlight)
 : _id(id)
-, _highlightPart(highlightPart)
-, _highlightPartOffsetHint(highlightPartOffsetHint)
-, _highlightId(highlightId) {
+, _highlightId(highlightId)
+, _highlight(std::move(highlight)) {
 	if (highlightId || _id.sublist) {
 		_list.setAroundPosition({
 			.fullId = FullMsgId(_id.history->peer->id, highlightId),
@@ -876,12 +874,7 @@ void ChatWidget::setupComposeControls() {
 	_composeControls->jumpToItemRequests(
 	) | rpl::start_with_next([=](FullReplyTo to) {
 		if (const auto item = session().data().message(to.messageId)) {
-			JumpToMessageClickHandler(
-				item,
-				{},
-				to.quote,
-				to.quoteOffset
-			)->onClick({});
+			JumpToMessageClickHandler(item, {}, to.highlight())->onClick({});
 		}
 	}, lifetime());
 
@@ -1039,8 +1032,9 @@ void ChatWidget::setupSwipeReplyAndBack() {
 				: still)->fullId();
 			_inner->replyToMessageRequestNotify({
 				.messageId = replyToItemId,
-				.quote = selected.text,
-				.quoteOffset = selected.offset,
+				.quote = selected.highlight.quote,
+				.quoteOffset = selected.highlight.quoteOffset,
+				.todoItemId = selected.highlight.todoItemId,
 			});
 		};
 		return result;
@@ -2639,8 +2633,7 @@ void ChatWidget::restoreState(not_null<ChatMemento*> memento) {
 		auto params = Window::SectionShow(
 			Window::SectionShow::Way::Forward,
 			anim::type::instant);
-		params.highlightPart = memento->highlightPart();
-		params.highlightPartOffsetHint = memento->highlightPartOffsetHint();
+		params.highlight = memento->highlight();
 		showAtPosition(Data::MessagePosition{
 			.fullId = FullMsgId(_peer->id, highlight),
 			.date = TimeId(0),
@@ -3443,8 +3436,7 @@ bool ChatWidget::searchInChatEmbedded(
 		const auto item = activation.item;
 		auto params = ::Window::SectionShow(
 			::Window::SectionShow::Way::ClearStack);
-		params.highlightPart = { activation.query };
-		params.highlightPartOffsetHint = kSearchQueryOffsetHint;
+		params.highlight = Window::SearchHighlightId(activation.query);
 		controller()->showPeerHistory(
 			item->history()->peer->id,
 			params,

Telegram/SourceFiles/history/view/history_view_chat_section.h

@@ -461,8 +461,7 @@ public:
 	explicit ChatMemento(
 		ChatViewId id,
 		MsgId highlightId = 0,
-		const TextWithEntities &highlightPart = {},
-		int highlightPartOffsetHint = 0);
+		MessageHighlightId highlight = {});
 
 	struct Comments {
 	};
@@ -511,20 +510,16 @@ public:
 	[[nodiscard]] MsgId highlightId() const {
 		return _highlightId;
 	}
-	[[nodiscard]] const TextWithEntities &highlightPart() const {
-		return _highlightPart;
-	}
-	[[nodiscard]] int highlightPartOffsetHint() const {
-		return _highlightPartOffsetHint;
+	[[nodiscard]] const MessageHighlightId &highlight() const {
+		return _highlight;
 	}
 
 private:
 	void setupTopicViewer();
 
 	ChatViewId _id;
-	const TextWithEntities _highlightPart;
-	const int _highlightPartOffsetHint = 0;
 	const MsgId _highlightId = 0;
+	const MessageHighlightId _highlight;
 	ListMemento _list;
 	std::shared_ptr<Data::RepliesList> _replies;
 	QVector<FullMsgId> _replyReturns;

Telegram/SourceFiles/history/view/history_view_context_menu.cpp

@@ -643,18 +643,18 @@ bool AddReplyToMessageAction(
 		? request.link->property(kTodoListItemIdProperty).toInt()
 		: 0;
 	const auto &quote = request.quote;
-	auto text = (quote.text.empty()
-		? tr::lng_context_reply_msg
-		: todoListTaskId
+	auto text = (todoListTaskId
 		? tr::lng_context_reply_to_task
+		: quote.highlight.quote.empty()
+		? tr::lng_context_reply_msg
 		: tr::lng_context_quote_and_reply)(
 			tr::now,
 			Ui::Text::FixAmpersandInAction);
 	menu->addAction(std::move(text), [=, itemId = item->fullId()] {
 		list->replyToMessageRequestNotify({
 			.messageId = itemId,
-			.quote = quote.text,
-			.quoteOffset = quote.offset,
+			.quote = quote.highlight.quote,
+			.quoteOffset = quote.highlight.quoteOffset,
 			.todoItemId = todoListTaskId,
 		}, base::IsCtrlPressed());
 	}, &st::menuIconReply);

Telegram/SourceFiles/history/view/history_view_element.cpp

@@ -1341,9 +1341,18 @@ void Element::validateText() {
 
 		if (const auto done = item->Get<HistoryServiceTodoCompletions>()) {
 			if (!done->completed.empty() && !done->incompleted.empty()) {
+				const auto todoItemId = (done->incompleted.size() == 1)
+					? done->incompleted.front()
+					: 0;
 				setServicePreMessage(
 					item->composeTodoIncompleted(done),
-					done->lnk);
+					JumpToMessageClickHandler(
+						(done->peerId
+							? history()->owner().peer(done->peerId)
+							: history()->peer),
+						done->msgId,
+						item->fullId(),
+						{ .todoItemId = todoItemId }));
 			} else {
 				setServicePreMessage({});
 			}
@@ -2190,17 +2199,18 @@ TextSelection Element::FindSelectionFromQuote(
 		const SelectedQuote &quote) {
 	Expects(quote.item != nullptr);
 
-	if (quote.text.empty()) {
+	const auto &rich = quote.highlight.quote;
+	if (rich.empty()) {
 		return {};
 	}
 	const auto &original = quote.item->originalText();
-	if (quote.offset == kSearchQueryOffsetHint) {
+	if (quote.highlight.quoteOffset == kSearchQueryOffsetHint) {
 		return ApplyModificationsFrom(
-			FindSearchQueryHighlight(original.text, quote.text.text),
+			FindSearchQueryHighlight(original.text, rich.text),
 			text);
 	}
 	const auto length = int(original.text.size());
-	const auto qlength = int(quote.text.text.size());
+	const auto qlength = int(rich.text.size());
 	const auto checkAt = [&](int offset) {
 		return TextSelection{
 			uint16(offset),
@@ -2211,7 +2221,7 @@ TextSelection Element::FindSelectionFromQuote(
 		if (offset > length - qlength) {
 			return TextSelection();
 		}
-		const auto i = original.text.indexOf(quote.text.text, offset);
+		const auto i = original.text.indexOf(rich.text, offset);
 		return (i >= 0) ? checkAt(i) : TextSelection();
 	};
 	const auto findOneBefore = [&](int offset) {
@@ -2220,7 +2230,7 @@ TextSelection Element::FindSelectionFromQuote(
 		}
 		const auto end = std::min(offset + qlength - 1, length);
 		const auto from = end - length - 1;
-		const auto i = original.text.lastIndexOf(quote.text.text, from);
+		const auto i = original.text.lastIndexOf(rich.text, from);
 		return (i >= 0) ? checkAt(i) : TextSelection();
 	};
 	const auto findAfter = [&](int offset) {
@@ -2258,7 +2268,7 @@ TextSelection Element::FindSelectionFromQuote(
 			? before
 			: after;
 	};
-	auto result = findTwoWays(quote.offset);
+	auto result = findTwoWays(quote.highlight.quoteOffset);
 	if (result.empty()) {
 		return {};
 	}

Telegram/SourceFiles/history/view/history_view_element.h

@@ -357,12 +357,11 @@ struct TopicButton {
 
 struct SelectedQuote {
 	HistoryItem *item = nullptr;
-	TextWithEntities text;
-	int offset = 0;
+	MessageHighlightId highlight;
 	bool overflown = false;
 
 	explicit operator bool() const {
-		return item && !text.empty();
+		return item && !highlight.quote.empty();
 	}
 	friend inline bool operator==(SelectedQuote, SelectedQuote) = default;
 };

Telegram/SourceFiles/history/view/history_view_list_widget.cpp

@@ -818,10 +818,9 @@ bool ListWidget::isBelowPosition(Data::MessagePosition position) const {
 
 void ListWidget::highlightMessage(
 		FullMsgId itemId,
-		const TextWithEntities &part,
-		int partOffsetHint) {
+		const MessageHighlightId &highlight) {
 	if (const auto view = viewForItem(itemId)) {
-		_highlighter.highlight({ view->data(), part, partOffsetHint });
+		_highlighter.highlight({ view->data(), highlight });
 	}
 }
 
@@ -899,11 +898,8 @@ bool ListWidget::showAtPositionNow(
 	}
 	if (position != Data::MaxMessagePosition
 		&& position != Data::UnreadMessagePosition) {
-		const auto hasHighlight = !params.highlightPart.empty();
-		highlightMessage(
-			position.fullId,
-			params.highlightPart,
-			params.highlightPartOffsetHint);
+		const auto hasHighlight = !params.highlight.empty();
+		highlightMessage(position.fullId, params.highlight);
 		if (hasHighlight) {
 			// We may want to scroll to a different part of the message.
 			scrollTop = scrollTopForPosition(position);

Telegram/SourceFiles/history/view/history_view_list_widget.h

@@ -314,8 +314,7 @@ public:
 	bool isBelowPosition(Data::MessagePosition position) const;
 	void highlightMessage(
 		FullMsgId itemId,
-		const TextWithEntities &part,
-		int partOffsetHint);
+		const MessageHighlightId &highlight);
 
 	void showAtPosition(
 		Data::MessagePosition position,

Telegram/SourceFiles/history/view/history_view_message.cpp

@@ -3303,7 +3303,7 @@ TextSelection Message::selectionFromQuote(
 		const SelectedQuote &quote) const {
 	Expects(quote.item != nullptr);
 
-	if (quote.text.empty()) {
+	if (quote.highlight.quote.empty()) {
 		return {};
 	}
 	const auto item = quote.item;

Telegram/SourceFiles/history/view/history_view_reply.cpp

@@ -384,10 +384,11 @@ void Reply::setLinkFrom(
 	const auto &fields = data->fields();
 	const auto externalChannelId = peerToChannel(fields.externalPeerId);
 	const auto messageId = fields.messageId;
-	const auto quote = fields.manualQuote
-		? fields.quote
-		: TextWithEntities();
-	const auto quoteOffset = fields.quoteOffset;
+	const auto highlight = MessageHighlightId{
+		.quote = fields.manualQuote ? fields.quote : TextWithEntities(),
+		.quoteOffset = int(fields.quoteOffset),
+		.todoItemId = fields.todoItemId,
+	};
 	const auto returnToId = view->data()->fullId();
 	const auto externalLink = [=](ClickContext context) {
 		const auto my = context.other.value<ClickHandlerContext>();
@@ -410,8 +411,7 @@ void Reply::setLinkFrom(
 							channel,
 							messageId,
 							returnToId,
-							quote,
-							quoteOffset
+							highlight
 						)->onClick(context);
 					} else {
 						controller->showPeerInfo(channel);
@@ -432,7 +432,7 @@ void Reply::setLinkFrom(
 	const auto message = data->resolvedMessage.get();
 	const auto story = data->resolvedStory.get();
 	_link = message
-		? JumpToMessageClickHandler(message, returnToId, quote, quoteOffset)
+		? JumpToMessageClickHandler(message, returnToId, highlight)
 		: story
 		? JumpToStoryClickHandler(story)
 		: (data->external()

Telegram/SourceFiles/history/view/history_view_scheduled_section.cpp

@@ -430,12 +430,8 @@ void ScheduledWidget::setupComposeControls() {
 			if (item->isScheduled() && item->history() == _history) {
 				showAtPosition(item->position());
 			} else {
-				JumpToMessageClickHandler(
-					item,
-					{},
-					to.quote,
-					to.quoteOffset
-				)->onClick({});
+				const auto highlight = to.highlight();
+				JumpToMessageClickHandler(item, {}, highlight)->onClick({});
 			}
 		}
 	}, lifetime());

Telegram/SourceFiles/history/view/media/history_view_todo_list.cpp

@@ -482,6 +482,7 @@ void TodoList::draw(Painter &p, const PaintContext &context) const {
 			paintw,
 			width(),
 			context);
+		appendTaskHighlight(task.id, tshift, height, context);
 		if (was) {
 			heavy = true;
 		} else if (!task.userpic.null()) {
@@ -576,6 +577,33 @@ int TodoList::paintTask(
 	return height;
 }
 
+void TodoList::appendTaskHighlight(
+		int id,
+		int top,
+		int height,
+		const PaintContext &context) const {
+	if (context.highlight.todoItemId != id
+		|| context.highlight.collapsion <= 0.) {
+		return;
+	}
+	const auto to = context.highlightInterpolateTo;
+	const auto toProgress = (1. - context.highlight.collapsion);
+	if (toProgress >= 1.) {
+		context.highlightPathCache->addRect(to);
+	} else if (toProgress <= 0.) {
+		context.highlightPathCache->addRect(0, top, width(), height);
+	} else {
+		const auto lerp = [=](int from, int to) {
+			return from + (to - from) * toProgress;
+		};
+		context.highlightPathCache->addRect(
+			lerp(0, to.x()),
+			lerp(top, to.y()),
+			lerp(width(), to.width()),
+			lerp(height, to.height()));
+	}
+}
+
 void TodoList::paintRadio(
 		Painter &p,
 		const Task &task,

Telegram/SourceFiles/history/view/media/history_view_todo_list.h

@@ -117,6 +117,11 @@ private:
 		int top,
 		int paintw,
 		const PaintContext &context) const;
+	void appendTaskHighlight(
+		int id,
+		int top,
+		int height,
+		const PaintContext &context) const;
 
 	void radialAnimationCallback() const;
 

Telegram/SourceFiles/ui/chat/chat_style.h

@@ -153,6 +153,7 @@ struct ChatPaintHighlight {
 	float64 opacity = 0.;
 	float64 collapsion = 0.;
 	TextSelection range;
+	int todoItemId = 0;
 };
 
 struct ChatPaintContext {

Telegram/SourceFiles/window/window_session_controller.cpp

@@ -358,6 +358,14 @@ void DateClickHandler::onClick(ClickContext context) const {
 	}
 }
 
+MessageHighlightId SearchHighlightId(const QString &query) {
+	auto result = MessageHighlightId{ .quote = { query } };
+	if (!result.quote.empty()) {
+		result.quoteOffset = kSearchQueryOffsetHint;
+	}
+	return result;
+}
+
 SessionNavigation::SessionNavigation(not_null<Main::Session*> session)
 : _session(session)
 , _api(&_session->mtp()) {
@@ -1146,8 +1154,7 @@ void SessionNavigation::showRepliesForMessage(
 					.repliesRootId = rootId,
 				},
 				commentId,
-				params.highlightPart,
-				params.highlightPartOffsetHint);
+				params.highlight);
 			memento->setFromTopic(topic);
 			showSection(std::move(memento), params);
 			return;
@@ -1269,8 +1276,7 @@ void SessionNavigation::showSublist(
 			.sublist = sublist,
 		},
 		itemId,
-		params.highlightPart,
-		params.highlightPartOffsetHint);
+		params.highlight);
 	showSection(std::move(memento), params);
 }
 

Telegram/SourceFiles/window/window_session_controller.h

@@ -166,8 +166,9 @@ struct SectionShow {
 		return copy;
 	}
 
-	TextWithEntities highlightPart;
+	MessageHighlightId highlight;
 	int highlightPartOffsetHint = 0;
+	int highlightTodoItemId = 0;
 	std::optional<TimeId> videoTimestamp;
 	Way way = Way::Forward;
 	anim::type animated = anim::type::normal;
@@ -182,6 +183,8 @@ struct SectionShow {
 
 };
 
+[[nodiscard]] MessageHighlightId SearchHighlightId(const QString &query);
+
 class SessionController;
 
 class SessionNavigation : public base::has_weak_ptr {