Make and display replies to tasks.

Telegram/Resources/langs/lang.strings

@@ -4260,6 +4260,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_context_to_msg" = "Go To Message";
 "lng_context_reply_msg" = "Reply";
 "lng_context_quote_and_reply" = "Quote & Reply";
+"lng_context_reply_to_task" = "Reply to Task";
 "lng_context_edit_msg" = "Edit";
 "lng_context_add_factcheck" = "Add Fact Check";
 "lng_context_edit_factcheck" = "Edit Fact Check";
@@ -4450,6 +4451,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_inline_switch_cant" = "Sorry, no way to write here :(";
 "lng_preview_reply_to" = "Reply to {name}";
 "lng_preview_reply_to_quote" = "Reply to quote from {name}";
+"lng_preview_reply_to_task" = "Reply to task from {title}";
 
 "lng_suggest_bar_title" = "Suggest a Post Below";
 "lng_suggest_bar_text" = "Click to offer a price for publishing.";

Telegram/SourceFiles/core/click_handler_types.h

@@ -17,6 +17,7 @@ constexpr auto kSendReactionEmojiProperty = 0x04;
 constexpr auto kReactionsCountEmojiProperty = 0x05;
 constexpr auto kDocumentFilenameTooltipProperty = 0x06;
 constexpr auto kPhoneNumberLinkProperty = 0x07;
+constexpr auto kTodoListItemIdProperty = 0x08;
 
 namespace Ui {
 class Show;

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -2342,6 +2342,9 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 	const auto linkUserpicPeerId = (link && _dragStateUserpic)
 		? link->property(kPeerLinkPeerIdProperty).toULongLong()
 		: 0;
+	const auto todoListTaskId = link
+		? link->property(kTodoListItemIdProperty).toInt()
+		: 0;
 	const auto session = &this->session();
 	_whoReactedMenuLifetime.destroy();
 	if (!clickedReaction.empty()
@@ -2702,6 +2705,8 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 			const auto selected = selectedQuote(item);
 			auto text = (selected
 				? tr::lng_context_quote_and_reply
+				: todoListTaskId
+				? tr::lng_context_reply_to_task
 				: tr::lng_context_reply_msg)(
 					tr::now,
 					Ui::Text::FixAmpersandInAction);
@@ -2714,6 +2719,7 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 					.messageId = itemId,
 					.quote = quote,
 					.quoteOffset = quoteOffset,
+					.todoItemId = todoListTaskId,
 				});
 				if (!quote.empty()) {
 					_widget->clearSelected();

Telegram/SourceFiles/history/history_item.cpp

@@ -4213,6 +4213,7 @@ void HistoryItem::createComponentsHelper(HistoryItemCommonFields &&fields) {
 			: replyTo.monoforumPeerId
 			? replyTo.monoforumPeerId
 			: PeerId();
+		config.reply.todoItemId = replyTo.todoItemId;
 		const auto replyToTop = replyTo.topicRootId
 			? replyTo.topicRootId
 			: LookupReplyToTop(_history, to);

Telegram/SourceFiles/history/history_widget.cpp

@@ -68,6 +68,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_changes.h"
 #include "data/data_drafts.h"
 #include "data/data_session.h"
+#include "data/data_todo_list.h"
 #include "data/data_web_page.h"
 #include "data/data_document.h"
 #include "data/data_photo.h"
@@ -8548,7 +8549,7 @@ void HistoryWidget::clearFieldText(
 void HistoryWidget::replyToMessage(FullReplyTo id) {
 	if (const auto item = session().data().message(id.messageId)) {
 		if (CanSendReply(item) && !base::IsCtrlPressed()) {
-			replyToMessage(item, id.quote, id.quoteOffset);
+			replyToMessage(item, id);
 		} else if (item->allowsForward()) {
 			const auto show = controller()->uiShow();
 			HistoryView::Controls::ShowReplyToChatBox(show, id);
@@ -8561,16 +8562,12 @@ void HistoryWidget::replyToMessage(FullReplyTo id) {
 
 void HistoryWidget::replyToMessage(
 		not_null<HistoryItem*> item,
-		TextWithEntities quote,
+		FullReplyTo fields) {
-		int quoteOffset) {
 	if (isJoinChannel()) {
 		return;
 	}
-	_processingReplyTo = {
+	fields.messageId = item->fullId();
-		.messageId = item->fullId(),
+	_processingReplyTo = fields;
-		.quote = quote,
-		.quoteOffset = quoteOffset,
-	};
 	_processingReplyItem = item;
 	processReply();
 }
@@ -9231,11 +9228,24 @@ void HistoryWidget::updateReplyEditText(not_null<HistoryItem*> item) {
 		.session = &session(),
 		.repaint = [=] { updateField(); },
 	});
+	const auto text = [&] {
+		const auto media = _replyTo.todoItemId ? item->media() : nullptr;
+		if (const auto todolist = media ? media->todolist() : nullptr) {
+			const auto i = ranges::find(
+				todolist->items,
+				_replyTo.todoItemId,
+				&TodoListItem::id);
+			if (i != end(todolist->items)) {
+				return i->text;
+			}
+		}
+		return (_editMsgId || _replyTo.quote.empty())
+			? item->inReplyText()
+			: _replyTo.quote;
+	}();
 	_replyEditMsgText.setMarkedText(
 		st::defaultTextStyle,
-		((_editMsgId || _replyTo.quote.empty())
+		text,
-			? item->inReplyText()
-			: _replyTo.quote),
 		Ui::DialogTextOptions(),
 		context);
 	if (fieldOrDisabledShown() || isRecording()) {
@@ -9321,10 +9331,9 @@ void HistoryWidget::updateReplyToName() {
 		.customEmojiLoopLimit = 1,
 	});
 	const auto to = _replyEditMsg ? _replyEditMsg : _kbReplyTo;
-	const auto replyToQuote = _replyTo && !_replyTo.quote.empty();
 	_replyToName.setMarkedText(
 		st::fwdTextStyle,
-		HistoryView::Reply::ComposePreviewName(_history, to, replyToQuote),
+		HistoryView::Reply::ComposePreviewName(_history, to, _replyTo),
 		Ui::NameTextOptions(),
 		context);
 }

Telegram/SourceFiles/history/history_widget.h

@@ -205,8 +205,7 @@ public:
 	void replyToMessage(FullReplyTo id);
 	void replyToMessage(
 		not_null<HistoryItem*> item,
-		TextWithEntities quote = {},
+		FullReplyTo fields = {});
-		int quoteOffset = 0);
 	void editMessage(
 		not_null<HistoryItem*> item,
 		const TextSelection &selection);

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

@@ -492,10 +492,9 @@ void FieldHeader::setShownMessage(HistoryItem *item) {
 			.customEmojiLoopLimit = 1,
 		});
 		const auto replyTo = _replyTo.current();
-		const auto quote = replyTo && !replyTo.quote.empty();
 		_shownMessageName.setMarkedText(
 			st::fwdTextStyle,
-			HistoryView::Reply::ComposePreviewName(_history, item, quote),
+			HistoryView::Reply::ComposePreviewName(_history, item, replyTo),
 			Ui::NameTextOptions(),
 			context);
 	} else {

Telegram/SourceFiles/history/view/history_view_context_menu.cpp

@@ -639,9 +639,14 @@ bool AddReplyToMessageAction(
 		return false;
 	}
 
+	const auto todoListTaskId = request.link
+		? request.link->property(kTodoListItemIdProperty).toInt()
+		: 0;
 	const auto &quote = request.quote;
 	auto text = (quote.text.empty()
 		? tr::lng_context_reply_msg
+		: todoListTaskId
+		? tr::lng_context_reply_to_task
 		: tr::lng_context_quote_and_reply)(
 			tr::now,
 			Ui::Text::FixAmpersandInAction);
@@ -650,6 +655,7 @@ bool AddReplyToMessageAction(
 			.messageId = itemId,
 			.quote = quote.text,
 			.quoteOffset = quote.offset,
+			.todoItemId = todoListTaskId,
 		}, base::IsCtrlPressed());
 	}, &st::menuIconReply);
 	return true;

Telegram/SourceFiles/history/view/history_view_reply.cpp

@@ -14,6 +14,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_peer.h"
 #include "data/data_session.h"
 #include "data/data_story.h"
+#include "data/data_todo_list.h"
 #include "data/data_user.h"
 #include "history/view/history_view_item_preview.h"
 #include "history/history.h"
@@ -38,6 +39,85 @@ namespace {
 
 constexpr auto kNonExpandedLinesLimit = 5;
 
+[[nodiscard]] QImage MakeTaskImage() {
+	const auto diameter = st::normalFont->ascent;
+	const auto line = st::historyPollRadio.thickness;
+	const auto size = 2 * line + diameter;
+	const auto ratio = style::DevicePixelRatio();
+	auto result = QImage(
+		QSize(size, size) * ratio,
+		QImage::Format_ARGB32_Premultiplied);
+	result.fill(Qt::transparent);
+	result.setDevicePixelRatio(ratio);
+
+	auto p = QPainter(&result);
+	PainterHighQualityEnabler hq(p);
+
+	p.setOpacity(st::historyPollRadioOpacity);
+
+	const auto rect = QRectF(line, line, diameter, diameter).marginsRemoved(
+		QMarginsF(line / 2., line / 2., line / 2., line / 2.));
+	auto pen = QPen(QColor(255, 255, 255));
+	pen.setWidth(line);
+	p.setPen(pen);
+	p.drawEllipse(rect);
+
+	p.end();
+
+	return result;
+}
+
+[[nodiscard]] QImage MakeTaskDoneImage() {
+	const auto white = QColor(255, 255, 255);
+	const auto black = QColor(0, 0, 0);
+
+	const auto diameter = st::normalFont->ascent;
+	const auto line = st::historyPollRadio.thickness;
+	const auto size = 2 * line + diameter;
+	const auto ratio = style::DevicePixelRatio();
+	auto result = QImage(
+		QSize(size, size) * ratio,
+		QImage::Format_ARGB32_Premultiplied);
+	result.fill(black);
+	result.setDevicePixelRatio(ratio);
+
+	auto p = QPainter(&result);
+	PainterHighQualityEnabler hq(p);
+
+	const auto rect = QRectF(line, line, diameter, diameter).marginsRemoved(
+		QMarginsF(line / 2., line / 2., line / 2., line / 2.));
+	auto pen = QPen(white);
+	pen.setWidth(line);
+	p.setPen(pen);
+	p.setBrush(white);
+	p.drawEllipse(rect);
+	const auto &icon = st::historyPollInChoiceRight;
+	icon.paint(
+		p,
+		line + (diameter - icon.width()) / 2,
+		line + (diameter - icon.height()) / 2,
+		size,
+		black);
+	p.end();
+
+	return style::colorizeImage(result, white);
+}
+
+[[nodiscard]] TextWithEntities TaskDoneIcon(
+		not_null<Main::Session*> session) {
+	return Ui::Text::SingleCustomEmoji(
+		session->data().customEmojiManager().registerInternalEmoji(
+			MakeTaskDoneImage(),
+			QMargins(0, st::lineWidth, st::lineWidth, 0)));
+}
+
+[[nodiscard]] TextWithEntities TaskIcon(not_null<Main::Session*> session) {
+	return Ui::Text::SingleCustomEmoji(
+		session->data().customEmojiManager().registerInternalEmoji(
+			MakeTaskImage(),
+			QMargins(0, st::lineWidth, st::lineWidth, 0)));
+}
+
 } // namespace
 
 void ValidateBackgroundEmoji(
@@ -193,6 +273,22 @@ void Reply::update(
 	const auto item = view->data();
 	const auto &fields = data->fields();
 	const auto message = data->resolvedMessage.get();
+	const auto messageMedia = (message && fields.todoItemId)
+		? message->media()
+		: nullptr;
+	const auto messageTodoList = messageMedia
+		? messageMedia->todolist()
+		: nullptr;
+	const auto taskIndex = messageTodoList
+		? int(ranges::find(
+			messageTodoList->items,
+			fields.todoItemId,
+			&TodoListItem::id) - begin(messageTodoList->items))
+		: -1;
+	const auto task = (taskIndex >= 0
+		&& taskIndex < messageTodoList->items.size())
+		? &messageTodoList->items[taskIndex]
+		: nullptr;
 	const auto story = data->resolvedStory.get();
 	const auto externalMedia = fields.externalMedia.get();
 	if (!_externalSender) {
@@ -210,7 +306,6 @@ void Reply::update(
 	_hiddenSenderColorIndexPlusOne = (!_colorPeer && message)
 		? (message->originalHiddenSenderInfo()->colorIndex + 1)
 		: 0;
-
 	const auto hasPreview = (story && story->hasReplyPreview())
 		|| (message
 			&& message->media()
@@ -225,8 +320,13 @@ void Reply::update(
 		&& !fields.quote.empty();
 	_hasQuoteIcon = hasQuoteIcon ? 1 : 0;
 
+	const auto session = &view->history()->session();
 	const auto text = (!_displaying && data->unavailable())
 		? TextWithEntities()
+		: task
+		? Ui::Text::Colorized(task->completionDate
+			? TaskDoneIcon(session)
+			: TaskIcon(session)).append(task->text)
 		: (message && (fields.quote.empty() || !fields.manualQuote))
 		? message->inReplyText()
 		: !fields.quote.empty()
@@ -867,18 +967,28 @@ TextWithEntities Reply::ForwardEmoji(not_null<Data::Session*> owner) {
 TextWithEntities Reply::ComposePreviewName(
 		not_null<History*> history,
 		not_null<HistoryItem*> to,
-		bool quote) {
+		const FullReplyTo &replyTo) {
 	const auto sender = [&] {
 		if (const auto from = to->displayFrom()) {
 			return not_null(from);
 		}
 		return to->author();
 	}();
+	if (const auto media = replyTo.todoItemId ? to->media() : nullptr) {
+		if (const auto todolist = media->todolist()) {
+			return tr::lng_preview_reply_to_task(
+				tr::now,
+				lt_title,
+				todolist->title,
+				Ui::Text::WithEntities);
+		}
+	}
 	const auto toPeer = to->history()->peer;
 	const auto displayAsExternal = (to->history() != history);
 	const auto groupNameAdded = displayAsExternal
 		&& (toPeer != sender)
 		&& (toPeer->isChat() || toPeer->isMegagroup());
+	const auto quote = replyTo && !replyTo.quote.empty();
 	const auto shorten = groupNameAdded || quote;
 
 	auto nameFull = TextWithEntities();

Telegram/SourceFiles/history/view/history_view_reply.h

@@ -110,7 +110,7 @@ public:
 	[[nodiscard]] static TextWithEntities ComposePreviewName(
 		not_null<History*> history,
 		not_null<HistoryItem*> to,
-		bool quote);
+		const FullReplyTo &replyTo);
 
 private:
 	[[nodiscard]] Ui::Text::GeometryDescriptor textGeometry(

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

@@ -334,9 +334,11 @@ void TodoList::updateTasks(bool skipAnimations) {
 ClickHandlerPtr TodoList::createTaskClickHandler(
 		const Task &task) {
 	const auto id = task.id;
-	return std::make_shared<LambdaClickHandler>(crl::guard(this, [=] {
+	auto result = std::make_shared<LambdaClickHandler>(crl::guard(this, [=] {
 		toggleCompletion(id);
 	}));
+	result->setProperty(kTodoListItemIdProperty, id);
+	return result;
 }
 
 void TodoList::startToggleAnimation(Task &task) {
@@ -375,11 +377,24 @@ void TodoList::toggleCompletion(int id) {
 	if (i == end(_tasks)) {
 		return;
 	}
+
 	const auto selected = (i->completionDate != 0);
 	i->completionDate = selected ? TimeId() : base::unixtime::now();
 	if (!selected) {
 		i->setCompletedBy(_parent->history()->session().user());
 	}
+
+	const auto parentMedia = _parent->data()->media();
+	const auto baseList = parentMedia ? parentMedia->todolist() : nullptr;
+	if (baseList) {
+		const auto j = ranges::find(baseList->items, id, &TodoListItem::id);
+		if (j != end(baseList->items)) {
+			j->completionDate = i->completionDate;
+			j->completedBy = i->completedBy;
+		}
+		history()->owner().updateDependentMessages(_parent->data());
+	}
+
 	startToggleAnimation(*i);
 	repaint();