Add ability to create todo lists.

Telegram/CMakeLists.txt

@@ -273,6 +273,8 @@ PRIVATE
     boxes/connection_box.h
     boxes/create_poll_box.cpp
     boxes/create_poll_box.h
+    boxes/create_todo_list_box.cpp
+    boxes/create_todo_list_box.h
     boxes/delete_messages_box.cpp
     boxes/delete_messages_box.h
     boxes/dictionaries_manager.cpp

Telegram/Resources/langs/lang.strings

@@ -5860,6 +5860,20 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_todo_completed#one" = "{count} of {total} completed";
 "lng_todo_completed#other" = "{count} of {total} completed";
 "lng_todo_completed_none" = "None of {total} completed";
+"lng_todo_create" = "Create To-Do List";
+"lng_todo_create_title" = "New To-Do List";
+"lng_todo_create_title_placeholder" = "Title";
+"lng_todo_create_list" = "Tasks List";
+"lng_todo_create_list_add" = "Add a task...";
+"lng_todo_create_limit#one" = "You can add {count} more task.";
+"lng_todo_create_limit#other" = "You can add {count} more tasks.";
+"lng_todo_create_maximum" = "You have added the maximum number of tasks.";
+"lng_todo_create_settings" = "Settings";
+"lng_todo_create_allow_add" = "Allow Others to Add Tasks";
+"lng_todo_create_allow_mark" = "Allow Others to Mark As Done";
+"lng_todo_create_button" = "Create";
+"lng_todo_choose_title" = "Please enter a title.";
+"lng_todo_choose_tasks" = "Please enter at least one task.";
 
 "lng_outdated_title" = "PLEASE UPDATE YOUR OPERATING SYSTEM.";
 "lng_outdated_title_bits" = "PLEASE SWITCH TO A 64-BIT OPERATING SYSTEM.";

Telegram/SourceFiles/api/api_todo_lists.cpp

@@ -10,15 +10,15 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 //#include "api/api_common.h"
 //#include "api/api_updates.h"
 #include "apiwrap.h"
-//#include "base/random.h"
-//#include "data/business/data_shortcut_messages.h"
-//#include "data/data_changes.h"
-//#include "data/data_histories.h"
+#include "base/random.h"
+#include "data/business/data_shortcut_messages.h" // ShortcutIdToMTP
+#include "data/data_changes.h"
+#include "data/data_histories.h"
 #include "data/data_todo_list.h"
 #include "data/data_session.h"
 #include "history/history.h"
 #include "history/history_item.h"
-//#include "history/history_item_helpers.h" // ShouldSendSilent
+#include "history/history_item_helpers.h" // ShouldSendSilent
 #include "main/main_session.h"
 
 namespace Api {
@@ -37,98 +37,98 @@ TodoLists::TodoLists(not_null<ApiWrap*> api)
 , _api(&api->instance())
 , _sendTimer([=] { sendAccumulatedToggles(false); }) {
 }
-//
-//void TodoLists::create(
-//		const PollData &data,
-//		SendAction action,
-//		Fn<void()> done,
-//		Fn<void()> fail) {
-//	_session->api().sendAction(action);
-//
-//	const auto history = action.history;
-//	const auto peer = history->peer;
-//	const auto topicRootId = action.replyTo.messageId
-//		? action.replyTo.topicRootId
-//		: 0;
-//	const auto monoforumPeerId = action.replyTo.monoforumPeerId;
-//	auto sendFlags = MTPmessages_SendMedia::Flags(0);
-//	if (action.replyTo) {
-//		sendFlags |= MTPmessages_SendMedia::Flag::f_reply_to;
-//	}
-//	const auto clearCloudDraft = action.clearDraft;
-//	if (clearCloudDraft) {
-//		sendFlags |= MTPmessages_SendMedia::Flag::f_clear_draft;
-//		history->clearLocalDraft(topicRootId, monoforumPeerId);
-//		history->clearCloudDraft(topicRootId, monoforumPeerId);
-//		history->startSavingCloudDraft(topicRootId, monoforumPeerId);
-//	}
-//	const auto silentPost = ShouldSendSilent(peer, action.options);
-//	const auto starsPaid = std::min(
-//		peer->starsPerMessageChecked(),
-//		action.options.starsApproved);
-//	if (silentPost) {
-//		sendFlags |= MTPmessages_SendMedia::Flag::f_silent;
-//	}
-//	if (action.options.scheduled) {
-//		sendFlags |= MTPmessages_SendMedia::Flag::f_schedule_date;
-//	}
-//	if (action.options.shortcutId) {
-//		sendFlags |= MTPmessages_SendMedia::Flag::f_quick_reply_shortcut;
-//	}
-//	if (action.options.effectId) {
-//		sendFlags |= MTPmessages_SendMedia::Flag::f_effect;
-//	}
-//	if (starsPaid) {
-//		action.options.starsApproved -= starsPaid;
-//		sendFlags |= MTPmessages_SendMedia::Flag::f_allow_paid_stars;
-//	}
-//	const auto sendAs = action.options.sendAs;
-//	if (sendAs) {
-//		sendFlags |= MTPmessages_SendMedia::Flag::f_send_as;
-//	}
-//	auto &histories = history->owner().histories();
-//	const auto randomId = base::RandomValue<uint64>();
-//	histories.sendPreparedMessage(
-//		history,
-//		action.replyTo,
-//		randomId,
-//		Data::Histories::PrepareMessage<MTPmessages_SendMedia>(
-//			MTP_flags(sendFlags),
-//			peer->input,
-//			Data::Histories::ReplyToPlaceholder(),
-//			PollDataToInputMedia(&data),
-//			MTP_string(),
-//			MTP_long(randomId),
-//			MTPReplyMarkup(),
-//			MTPVector<MTPMessageEntity>(),
-//			MTP_int(action.options.scheduled),
-//			(sendAs ? sendAs->input : MTP_inputPeerEmpty()),
-//			Data::ShortcutIdToMTP(_session, action.options.shortcutId),
-//			MTP_long(action.options.effectId),
-//			MTP_long(starsPaid)
-//		), [=](const MTPUpdates &result, const MTP::Response &response) {
-//		if (clearCloudDraft) {
-//			history->finishSavingCloudDraft(
-//				topicRootId,
-//				monoforumPeerId,
-//				UnixtimeFromMsgId(response.outerMsgId));
-//		}
-//		_session->changes().historyUpdated(
-//			history,
-//			(action.options.scheduled
-//				? Data::HistoryUpdate::Flag::ScheduledSent
-//				: Data::HistoryUpdate::Flag::MessageSent));
-//		done();
-//	}, [=](const MTP::Error &error, const MTP::Response &response) {
-//		if (clearCloudDraft) {
-//			history->finishSavingCloudDraft(
-//				topicRootId,
-//				monoforumPeerId,
-//				UnixtimeFromMsgId(response.outerMsgId));
-//		}
-//		fail();
-//	});
-//}
+
+void TodoLists::create(
+		const TodoListData &data,
+		SendAction action,
+		Fn<void()> done,
+		Fn<void()> fail) {
+	_session->api().sendAction(action);
+
+	const auto history = action.history;
+	const auto peer = history->peer;
+	const auto topicRootId = action.replyTo.messageId
+		? action.replyTo.topicRootId
+		: 0;
+	const auto monoforumPeerId = action.replyTo.monoforumPeerId;
+	auto sendFlags = MTPmessages_SendMedia::Flags(0);
+	if (action.replyTo) {
+		sendFlags |= MTPmessages_SendMedia::Flag::f_reply_to;
+	}
+	const auto clearCloudDraft = action.clearDraft;
+	if (clearCloudDraft) {
+		sendFlags |= MTPmessages_SendMedia::Flag::f_clear_draft;
+		history->clearLocalDraft(topicRootId, monoforumPeerId);
+		history->clearCloudDraft(topicRootId, monoforumPeerId);
+		history->startSavingCloudDraft(topicRootId, monoforumPeerId);
+	}
+	const auto silentPost = ShouldSendSilent(peer, action.options);
+	const auto starsPaid = std::min(
+		peer->starsPerMessageChecked(),
+		action.options.starsApproved);
+	if (silentPost) {
+		sendFlags |= MTPmessages_SendMedia::Flag::f_silent;
+	}
+	if (action.options.scheduled) {
+		sendFlags |= MTPmessages_SendMedia::Flag::f_schedule_date;
+	}
+	if (action.options.shortcutId) {
+		sendFlags |= MTPmessages_SendMedia::Flag::f_quick_reply_shortcut;
+	}
+	if (action.options.effectId) {
+		sendFlags |= MTPmessages_SendMedia::Flag::f_effect;
+	}
+	if (starsPaid) {
+		action.options.starsApproved -= starsPaid;
+		sendFlags |= MTPmessages_SendMedia::Flag::f_allow_paid_stars;
+	}
+	const auto sendAs = action.options.sendAs;
+	if (sendAs) {
+		sendFlags |= MTPmessages_SendMedia::Flag::f_send_as;
+	}
+	auto &histories = history->owner().histories();
+	const auto randomId = base::RandomValue<uint64>();
+	histories.sendPreparedMessage(
+		history,
+		action.replyTo,
+		randomId,
+		Data::Histories::PrepareMessage<MTPmessages_SendMedia>(
+			MTP_flags(sendFlags),
+			peer->input,
+			Data::Histories::ReplyToPlaceholder(),
+			TodoListDataToInputMedia(&data),
+			MTP_string(),
+			MTP_long(randomId),
+			MTPReplyMarkup(),
+			MTPVector<MTPMessageEntity>(),
+			MTP_int(action.options.scheduled),
+			(sendAs ? sendAs->input : MTP_inputPeerEmpty()),
+			Data::ShortcutIdToMTP(_session, action.options.shortcutId),
+			MTP_long(action.options.effectId),
+			MTP_long(starsPaid)
+		), [=](const MTPUpdates &result, const MTP::Response &response) {
+		if (clearCloudDraft) {
+			history->finishSavingCloudDraft(
+				topicRootId,
+				monoforumPeerId,
+				UnixtimeFromMsgId(response.outerMsgId));
+		}
+		_session->changes().historyUpdated(
+			history,
+			(action.options.scheduled
+				? Data::HistoryUpdate::Flag::ScheduledSent
+				: Data::HistoryUpdate::Flag::MessageSent));
+		done();
+	}, [=](const MTP::Error &error, const MTP::Response &response) {
+		if (clearCloudDraft) {
+			history->finishSavingCloudDraft(
+				topicRootId,
+				monoforumPeerId,
+				UnixtimeFromMsgId(response.outerMsgId));
+		}
+		fail();
+	});
+}
 
 void TodoLists::toggleCompletion(FullMsgId itemId, int id, bool completed) {
 	auto &entry = _toggles[itemId];

Telegram/SourceFiles/api/api_todo_lists.h

@@ -26,11 +26,11 @@ class TodoLists final {
 public:
 	explicit TodoLists(not_null<ApiWrap*> api);
 
-	//void create(
-	//	const PollData &data,
-	//	SendAction action,
-	//	Fn<void()> done,
-	//	Fn<void()> fail);
+	void create(
+		const TodoListData &data,
+		SendAction action,
+		Fn<void()> done,
+		Fn<void()> fail);
 	void toggleCompletion(FullMsgId itemId, int id, bool completed);
 
 private:

Telegram/SourceFiles/boxes/create_poll_box.cpp

@@ -114,7 +114,7 @@ private:
 		void setPlaceholder() const;
 		void removePlaceholder() const;
 
-		not_null<Ui::InputField*> field() const;
+		[[nodiscard]] not_null<Ui::InputField*> field() const;
 
 		[[nodiscard]] PollAnswer toPollAnswer(int index) const;
 

Telegram/SourceFiles/boxes/create_todo_list_box.cpp

@@ -0,0 +1,995 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "boxes/create_todo_list_box.h"
+
+#include "base/call_delayed.h"
+#include "base/event_filter.h"
+#include "base/random.h"
+#include "base/unique_qptr.h"
+#include "chat_helpers/emoji_suggestions_widget.h"
+#include "chat_helpers/message_field.h"
+#include "chat_helpers/tabbed_panel.h"
+#include "chat_helpers/tabbed_selector.h"
+#include "core/application.h"
+#include "core/core_settings.h"
+#include "data/data_session.h"
+#include "data/data_todo_list.h"
+#include "data/data_user.h"
+#include "data/stickers/data_custom_emoji.h"
+#include "history/view/history_view_schedule_box.h"
+#include "lang/lang_keys.h"
+#include "main/main_app_config.h"
+#include "main/main_session.h"
+#include "menu/menu_send.h"
+#include "ui/controls/emoji_button.h"
+#include "ui/controls/emoji_button_factory.h"
+#include "ui/rect.h"
+#include "ui/text/text_utilities.h"
+#include "ui/toast/toast.h"
+#include "ui/vertical_list.h"
+#include "ui/widgets/fields/input_field.h"
+#include "ui/widgets/buttons.h"
+#include "ui/widgets/checkbox.h"
+#include "ui/widgets/labels.h"
+#include "ui/widgets/shadow.h"
+#include "ui/wrap/fade_wrap.h"
+#include "ui/wrap/slide_wrap.h"
+#include "ui/wrap/vertical_layout.h"
+#include "ui/ui_utility.h"
+#include "window/window_session_controller.h"
+#include "styles/style_boxes.h"
+#include "styles/style_chat_helpers.h" // defaultComposeFiles.
+#include "styles/style_layers.h"
+#include "styles/style_settings.h"
+
+namespace {
+
+constexpr auto kMaxOptionsCount = TodoListData::kMaxOptions;
+constexpr auto kWarnTitleLimit = 12;
+constexpr auto kWarnTaskLimit = 24;
+constexpr auto kErrorLimit = 99;
+
+class Tasks {
+public:
+	Tasks(
+		not_null<Ui::BoxContent*> box,
+		not_null<Ui::VerticalLayout*> container,
+		not_null<Window::SessionController*> controller,
+		ChatHelpers::TabbedPanel *emojiPanel);
+
+	[[nodiscard]] bool hasTasks() const;
+	[[nodiscard]] bool isValid() const;
+	[[nodiscard]] std::vector<TodoListItem> toTodoListItems() const;
+	void focusFirst();
+
+	[[nodiscard]] rpl::producer<int> usedCount() const;
+	[[nodiscard]] rpl::producer<not_null<QWidget*>> scrollToWidget() const;
+	[[nodiscard]] rpl::producer<> backspaceInFront() const;
+	[[nodiscard]] rpl::producer<> tabbed() const;
+
+private:
+	class Task {
+	public:
+		Task(
+			not_null<QWidget*> outer,
+			not_null<Ui::VerticalLayout*> container,
+			not_null<Main::Session*> session,
+			int position);
+
+		Task(const Task &other) = delete;
+		Task &operator=(const Task &other) = delete;
+
+		void toggleRemoveAlways(bool toggled);
+
+		void show(anim::type animated);
+		void destroy(FnMut<void()> done);
+
+		[[nodiscard]] bool hasShadow() const;
+		void createShadow();
+		void destroyShadow();
+
+		[[nodiscard]] bool isEmpty() const;
+		[[nodiscard]] bool isGood() const;
+		[[nodiscard]] bool isTooLong() const;
+		[[nodiscard]] bool hasFocus() const;
+		void setFocus() const;
+		void clearValue();
+
+		void setPlaceholder() const;
+		void removePlaceholder() const;
+
+		[[nodiscard]] not_null<Ui::InputField*> field() const;
+
+		[[nodiscard]] TodoListItem toTodoListItem(int index) const;
+
+		[[nodiscard]] rpl::producer<Qt::MouseButton> removeClicks() const;
+
+	private:
+		void createRemove();
+		void createWarning();
+		void updateFieldGeometry();
+
+		base::unique_qptr<Ui::SlideWrap<Ui::RpWidget>> _wrap;
+		not_null<Ui::RpWidget*> _content;
+		Ui::InputField *_field = nullptr;
+		base::unique_qptr<Ui::PlainShadow> _shadow;
+		base::unique_qptr<Ui::CrossButton> _remove;
+		rpl::variable<bool> *_removeAlways = nullptr;
+		int _limit = 0;
+
+	};
+
+	[[nodiscard]] bool full() const;
+	[[nodiscard]] bool correctShadows() const;
+	void fixShadows();
+	void removeEmptyTail();
+	void addEmptyTask();
+	void checkLastTask();
+	void validateState();
+	void fixAfterErase();
+	void destroy(std::unique_ptr<Task> task);
+	void removeDestroyed(not_null<Task*> field);
+	int findField(not_null<Ui::InputField*> field) const;
+
+	not_null<Ui::BoxContent*> _box;
+	not_null<Ui::VerticalLayout*> _container;
+	const not_null<Window::SessionController*> _controller;
+	ChatHelpers::TabbedPanel * const _emojiPanel;
+	int _position = 0;
+	int _tasksLimit = 0;
+	std::vector<std::unique_ptr<Task>> _list;
+	std::vector<std::unique_ptr<Task>> _destroyed;
+	rpl::variable<int> _usedCount = 0;
+	bool _hasTasks = false;
+	bool _isValid = false;
+	rpl::event_stream<not_null<QWidget*>> _scrollToWidget;
+	rpl::event_stream<> _backspaceInFront;
+	rpl::event_stream<> _tabbed;
+	rpl::lifetime _emojiPanelLifetime;
+
+};
+
+void InitField(
+		not_null<QWidget*> container,
+		not_null<Ui::InputField*> field,
+		not_null<Main::Session*> session) {
+	field->setInstantReplaces(Ui::InstantReplaces::Default());
+	field->setInstantReplacesEnabled(
+		Core::App().settings().replaceEmojiValue());
+	auto options = Ui::Emoji::SuggestionsController::Options();
+	options.suggestExactFirstWord = false;
+	Ui::Emoji::SuggestionsController::Init(
+		container,
+		field,
+		session,
+		options);
+}
+
+not_null<Ui::FlatLabel*> CreateWarningLabel(
+		not_null<QWidget*> parent,
+		not_null<Ui::InputField*> field,
+		int valueLimit,
+		int warnLimit) {
+	const auto result = Ui::CreateChild<Ui::FlatLabel>(
+		parent.get(),
+		QString(),
+		st::createPollWarning);
+	result->setAttribute(Qt::WA_TransparentForMouseEvents);
+	field->changes(
+	) | rpl::start_with_next([=] {
+		Ui::PostponeCall(crl::guard(field, [=] {
+			const auto length = field->getLastText().size();
+			const auto value = valueLimit - length;
+			const auto shown = (value < warnLimit)
+				&& (field->height() > st::createPollOptionField.heightMin);
+			if (value >= 0) {
+				result->setText(QString::number(value));
+			} else {
+				constexpr auto kMinus = QChar(0x2212);
+				result->setMarkedText(Ui::Text::Colorized(
+					kMinus + QString::number(std::abs(value))));
+			}
+			result->setVisible(shown);
+		}));
+	}, field->lifetime());
+	return result;
+}
+
+void FocusAtEnd(not_null<Ui::InputField*> field) {
+	field->setFocus();
+	field->setCursorPosition(field->getLastText().size());
+	field->ensureCursorVisible();
+}
+
+Tasks::Task::Task(
+	not_null<QWidget*> outer,
+	not_null<Ui::VerticalLayout*> container,
+	not_null<Main::Session*> session,
+	int position)
+: _wrap(container->insert(
+	position,
+	object_ptr<Ui::SlideWrap<Ui::RpWidget>>(
+		container,
+		object_ptr<Ui::RpWidget>(container))))
+, _content(_wrap->entity())
+, _field(
+	Ui::CreateChild<Ui::InputField>(
+		_content.get(),
+		session->user()->isPremium()
+			? st::createPollOptionFieldPremium
+			: st::createPollOptionField,
+		Ui::InputField::Mode::NoNewlines,
+		tr::lng_todo_create_list_add()))
+, _limit(session->appConfig().todoListItemTextLimit()) {
+	InitField(outer, _field, session);
+	_field->setMaxLength(_limit + kErrorLimit);
+	_field->show();
+	_field->customTab(true);
+
+	_wrap->hide(anim::type::instant);
+
+	_content->widthValue(
+	) | rpl::start_with_next([=] {
+		updateFieldGeometry();
+	}, _field->lifetime());
+
+	_field->heightValue(
+	) | rpl::start_with_next([=](int height) {
+		_content->resize(_content->width(), height);
+	}, _field->lifetime());
+
+	createShadow();
+	createRemove();
+	createWarning();
+	updateFieldGeometry();
+}
+
+bool Tasks::Task::hasShadow() const {
+	return (_shadow != nullptr);
+}
+
+void Tasks::Task::createShadow() {
+	Expects(_content != nullptr);
+
+	if (_shadow) {
+		return;
+	}
+	_shadow.reset(Ui::CreateChild<Ui::PlainShadow>(field().get()));
+	_shadow->show();
+	field()->sizeValue(
+	) | rpl::start_with_next([=](QSize size) {
+		const auto left = st::createPollFieldPadding.left();
+		_shadow->setGeometry(
+			left,
+			size.height() - st::lineWidth,
+			size.width() - left,
+			st::lineWidth);
+	}, _shadow->lifetime());
+}
+
+void Tasks::Task::destroyShadow() {
+	_shadow = nullptr;
+}
+
+void Tasks::Task::createRemove() {
+	using namespace rpl::mappers;
+
+	const auto field = this->field();
+	auto &lifetime = field->lifetime();
+
+	const auto remove = Ui::CreateChild<Ui::CrossButton>(
+		field.get(),
+		st::createPollOptionRemove);
+	remove->show(anim::type::instant);
+
+	const auto toggle = lifetime.make_state<rpl::variable<bool>>(false);
+	_removeAlways = lifetime.make_state<rpl::variable<bool>>(false);
+
+	field->changes(
+	) | rpl::start_with_next([field, toggle] {
+		// Don't capture 'this'! Because Option is a value type.
+		*toggle = !field->getLastText().isEmpty();
+	}, field->lifetime());
+#if 0
+	rpl::combine(
+		toggle->value(),
+		_removeAlways->value(),
+		_1 || _2
+	) | rpl::start_with_next([=](bool shown) {
+		remove->toggle(shown, anim::type::normal);
+	}, remove->lifetime());
+#endif
+
+	field->widthValue(
+	) | rpl::start_with_next([=](int width) {
+		remove->moveToRight(
+			st::createPollOptionRemovePosition.x(),
+			st::createPollOptionRemovePosition.y(),
+			width);
+	}, remove->lifetime());
+
+	_remove.reset(remove);
+}
+
+void Tasks::Task::createWarning() {
+	using namespace rpl::mappers;
+
+	const auto field = this->field();
+	const auto warning = CreateWarningLabel(
+		field,
+		field,
+		_limit,
+		kWarnTaskLimit);
+	rpl::combine(
+		field->sizeValue(),
+		warning->sizeValue()
+	) | rpl::start_with_next([=](QSize size, QSize label) {
+		warning->moveToLeft(
+			(size.width()
+				- label.width()
+				- st::createPollWarningPosition.x()),
+			(size.height()
+				- label.height()
+				- st::createPollWarningPosition.y()),
+			size.width());
+	}, warning->lifetime());
+}
+
+bool Tasks::Task::isEmpty() const {
+	return field()->getLastText().trimmed().isEmpty();
+}
+
+bool Tasks::Task::isGood() const {
+	return !field()->getLastText().trimmed().isEmpty() && !isTooLong();
+}
+
+bool Tasks::Task::isTooLong() const {
+	return (field()->getLastText().size() > _limit);
+}
+
+bool Tasks::Task::hasFocus() const {
+	return field()->hasFocus();
+}
+
+void Tasks::Task::setFocus() const {
+	FocusAtEnd(field());
+}
+
+void Tasks::Task::clearValue() {
+	field()->setText(QString());
+}
+
+void Tasks::Task::setPlaceholder() const {
+	field()->setPlaceholder(tr::lng_todo_create_list_add());
+}
+
+void Tasks::Task::toggleRemoveAlways(bool toggled) {
+	*_removeAlways = toggled;
+}
+
+void Tasks::Task::updateFieldGeometry() {
+	_field->resizeToWidth(_content->width());
+	_field->moveToLeft(0, 0);
+}
+
+not_null<Ui::InputField*> Tasks::Task::field() const {
+	return _field;
+}
+
+void Tasks::Task::removePlaceholder() const {
+	field()->setPlaceholder(rpl::single(QString()));
+}
+
+TodoListItem Tasks::Task::toTodoListItem(int index) const {
+	Expects(index >= 0 && index < kMaxOptionsCount);
+
+	const auto text = field()->getTextWithTags();
+
+	auto result = TodoListItem{
+		.text = TextWithEntities{
+			.text = text.text,
+			.entities = TextUtilities::ConvertTextTagsToEntities(text.tags),
+		},
+		.id = (index + 1)
+	};
+	TextUtilities::Trim(result.text);
+	return result;
+}
+
+rpl::producer<Qt::MouseButton> Tasks::Task::removeClicks() const {
+	return _remove->clicks();
+}
+
+Tasks::Tasks(
+	not_null<Ui::BoxContent*> box,
+	not_null<Ui::VerticalLayout*> container,
+	not_null<Window::SessionController*> controller,
+	ChatHelpers::TabbedPanel *emojiPanel)
+: _box(box)
+, _container(container)
+, _controller(controller)
+, _emojiPanel(emojiPanel)
+, _position(_container->count())
+, _tasksLimit(controller->session().appConfig().todoListItemsLimit()) {
+	checkLastTask();
+}
+
+bool Tasks::full() const {
+	return (_list.size() >= _tasksLimit);
+}
+
+bool Tasks::hasTasks() const {
+	return _hasTasks;
+}
+
+bool Tasks::isValid() const {
+	return _isValid;
+}
+
+rpl::producer<int> Tasks::usedCount() const {
+	return _usedCount.value();
+}
+
+rpl::producer<not_null<QWidget*>> Tasks::scrollToWidget() const {
+	return _scrollToWidget.events();
+}
+
+rpl::producer<> Tasks::backspaceInFront() const {
+	return _backspaceInFront.events();
+}
+
+rpl::producer<> Tasks::tabbed() const {
+	return _tabbed.events();
+}
+
+void Tasks::Task::show(anim::type animated) {
+	_wrap->show(animated);
+}
+
+void Tasks::Task::destroy(FnMut<void()> done) {
+	if (anim::Disabled() || _wrap->isHidden()) {
+		Ui::PostponeCall(std::move(done));
+		return;
+	}
+	_wrap->hide(anim::type::normal);
+	base::call_delayed(
+		st::slideWrapDuration * 2,
+		_content.get(),
+		std::move(done));
+}
+
+std::vector<TodoListItem> Tasks::toTodoListItems() const {
+	auto result = std::vector<TodoListItem>();
+	result.reserve(_list.size());
+	auto counter = int(0);
+	const auto makeTask = [&](const std::unique_ptr<Task> &task) {
+		return task->toTodoListItem(counter++);
+	};
+	ranges::copy(
+		_list
+		| ranges::views::filter(&Task::isGood)
+		| ranges::views::transform(makeTask),
+		ranges::back_inserter(result));
+	return result;
+}
+
+void Tasks::focusFirst() {
+	Expects(!_list.empty());
+
+	_list.front()->setFocus();
+}
+
+bool Tasks::correctShadows() const {
+	// Last one should be without shadow.
+	const auto noShadow = ranges::find(
+		_list,
+		true,
+		ranges::not_fn(&Task::hasShadow));
+	return (noShadow == end(_list) - 1);
+}
+
+void Tasks::fixShadows() {
+	if (correctShadows()) {
+		return;
+	}
+	for (auto &option : _list) {
+		option->createShadow();
+	}
+	_list.back()->destroyShadow();
+}
+
+void Tasks::removeEmptyTail() {
+	// Only one option at the end of options list can be empty.
+	// Remove all other trailing empty options.
+	// Only last empty and previous option have non-empty placeholders.
+	const auto focused = ranges::find_if(
+		_list,
+		&Task::hasFocus);
+	const auto end = _list.end();
+	const auto reversed = ranges::views::reverse(_list);
+	const auto emptyItem = ranges::find_if(
+		reversed,
+		ranges::not_fn(&Task::isEmpty)).base();
+	const auto focusLast = (focused > emptyItem) && (focused < end);
+	if (emptyItem == end) {
+		return;
+	}
+	if (focusLast) {
+		(*emptyItem)->setFocus();
+	}
+	for (auto i = emptyItem + 1; i != end; ++i) {
+		destroy(std::move(*i));
+	}
+	_list.erase(emptyItem + 1, end);
+	fixAfterErase();
+}
+
+void Tasks::destroy(std::unique_ptr<Task> task) {
+	const auto value = task.get();
+	task->destroy([=] { removeDestroyed(value); });
+	_destroyed.push_back(std::move(task));
+}
+
+void Tasks::fixAfterErase() {
+	Expects(!_list.empty());
+
+	const auto last = _list.end() - 1;
+	(*last)->setPlaceholder();
+	(*last)->toggleRemoveAlways(false);
+	if (last != begin(_list)) {
+		(*(last - 1))->setPlaceholder();
+		(*(last - 1))->toggleRemoveAlways(false);
+	}
+	fixShadows();
+}
+
+void Tasks::addEmptyTask() {
+	if (full()) {
+		return;
+	} else if (!_list.empty() && _list.back()->isEmpty()) {
+		return;
+	}
+	if (_list.size() > 1) {
+		(*(_list.end() - 2))->removePlaceholder();
+		(*(_list.end() - 2))->toggleRemoveAlways(true);
+	}
+	_list.push_back(std::make_unique<Task>(
+		_box,
+		_container,
+		&_controller->session(),
+		_position + _list.size() + _destroyed.size()));
+	const auto field = _list.back()->field();
+	if (const auto emojiPanel = _emojiPanel) {
+		const auto emojiToggle = Ui::AddEmojiToggleToField(
+			field,
+			_box,
+			_controller,
+			emojiPanel,
+			QPoint(
+				-st::createPollOptionFieldPremium.textMargins.right(),
+				st::createPollOptionEmojiPositionSkip));
+		emojiToggle->shownValue() | rpl::start_with_next([=](bool shown) {
+			if (!shown) {
+				return;
+			}
+			_emojiPanelLifetime.destroy();
+			emojiPanel->selector()->emojiChosen(
+			) | rpl::start_with_next([=](ChatHelpers::EmojiChosen data) {
+				if (field->hasFocus()) {
+					Ui::InsertEmojiAtCursor(field->textCursor(), data.emoji);
+				}
+			}, _emojiPanelLifetime);
+			emojiPanel->selector()->customEmojiChosen(
+			) | rpl::start_with_next([=](ChatHelpers::FileChosen data) {
+				if (field->hasFocus()) {
+					Data::InsertCustomEmoji(field, data.document);
+				}
+			}, _emojiPanelLifetime);
+		}, emojiToggle->lifetime());
+	}
+	field->submits(
+	) | rpl::start_with_next([=] {
+		const auto index = findField(field);
+		if (_list[index]->isGood() && index + 1 < _list.size()) {
+			_list[index + 1]->setFocus();
+		}
+	}, field->lifetime());
+	field->changes(
+	) | rpl::start_with_next([=] {
+		Ui::PostponeCall(crl::guard(field, [=] {
+			validateState();
+		}));
+	}, field->lifetime());
+	field->focusedChanges(
+	) | rpl::filter(rpl::mappers::_1) | rpl::start_with_next([=] {
+		_scrollToWidget.fire_copy(field);
+	}, field->lifetime());
+	field->tabbed(
+	) | rpl::start_with_next([=] {
+		const auto index = findField(field);
+		if (index + 1 < _list.size()) {
+			_list[index + 1]->setFocus();
+		} else {
+			_tabbed.fire({});
+		}
+	}, field->lifetime());
+	base::install_event_filter(field, [=](not_null<QEvent*> event) {
+		if (event->type() != QEvent::KeyPress
+			|| !field->getLastText().isEmpty()) {
+			return base::EventFilterResult::Continue;
+		}
+		const auto key = static_cast<QKeyEvent*>(event.get())->key();
+		if (key != Qt::Key_Backspace) {
+			return base::EventFilterResult::Continue;
+		}
+
+		const auto index = findField(field);
+		if (index > 0) {
+			_list[index - 1]->setFocus();
+		} else {
+			_backspaceInFront.fire({});
+		}
+		return base::EventFilterResult::Cancel;
+	});
+
+	_list.back()->removeClicks(
+	) | rpl::start_with_next([=] {
+		Ui::PostponeCall(crl::guard(field, [=] {
+			Expects(!_list.empty());
+
+			const auto item = begin(_list) + findField(field);
+			if (item == _list.end() - 1) {
+				(*item)->clearValue();
+				return;
+			}
+			if ((*item)->hasFocus()) {
+				(*(item + 1))->setFocus();
+			}
+			destroy(std::move(*item));
+			_list.erase(item);
+			fixAfterErase();
+			validateState();
+		}));
+	}, field->lifetime());
+
+	_list.back()->show((_list.size() == 1)
+		? anim::type::instant
+		: anim::type::normal);
+	fixShadows();
+}
+
+void Tasks::removeDestroyed(not_null<Task*> task) {
+	const auto i = ranges::find(
+		_destroyed,
+		task.get(),
+		&std::unique_ptr<Task>::get);
+	Assert(i != end(_destroyed));
+	_destroyed.erase(i);
+}
+
+void Tasks::validateState() {
+	checkLastTask();
+	_hasTasks = (ranges::count_if(_list, &Task::isGood) > 0);
+	_isValid = _hasTasks && ranges::none_of(_list, &Task::isTooLong);
+
+	const auto lastEmpty = !_list.empty() && _list.back()->isEmpty();
+	_usedCount = _list.size() - (lastEmpty ? 1 : 0);
+}
+
+int Tasks::findField(not_null<Ui::InputField*> field) const {
+	const auto result = ranges::find(
+		_list,
+		field,
+		&Task::field) - begin(_list);
+
+	Ensures(result >= 0 && result < _list.size());
+	return result;
+}
+
+void Tasks::checkLastTask() {
+	removeEmptyTail();
+	addEmptyTask();
+}
+
+} // namespace
+
+CreateTodoListBox::CreateTodoListBox(
+	QWidget*,
+	not_null<Window::SessionController*> controller,
+	rpl::producer<int> starsRequired,
+	Api::SendType sendType,
+	SendMenu::Details sendMenuDetails)
+: _controller(controller)
+, _sendType(sendType)
+, _sendMenuDetails([result = sendMenuDetails] { return result; })
+, _starsRequired(std::move(starsRequired))
+, _titleLimit(controller->session().appConfig().todoListTitleLimit()) {
+}
+
+auto CreateTodoListBox::submitRequests() const -> rpl::producer<Result> {
+	return _submitRequests.events();
+}
+
+void CreateTodoListBox::setInnerFocus() {
+	_setInnerFocus();
+}
+
+void CreateTodoListBox::submitFailed(const QString &error) {
+	showToast(error);
+}
+
+not_null<Ui::InputField*> CreateTodoListBox::setupTitle(
+		not_null<Ui::VerticalLayout*> container) {
+	using namespace Settings;
+
+	const auto session = &_controller->session();
+	const auto isPremium = session->user()->isPremium();
+
+	const auto title = container->add(
+		object_ptr<Ui::InputField>(
+			container,
+			st::createPollField,
+			Ui::InputField::Mode::MultiLine,
+			tr::lng_todo_create_title_placeholder()),
+		st::createPollFieldPadding
+			+ (isPremium
+				? QMargins(0, 0, st::defaultComposeFiles.emoji.inner.width, 0)
+				: QMargins()));
+	InitField(getDelegate()->outerContainer(), title, session);
+	title->setMaxLength(_titleLimit + kErrorLimit);
+	title->setSubmitSettings(Ui::InputField::SubmitSettings::Both);
+	title->customTab(true);
+
+	if (isPremium) {
+		using Selector = ChatHelpers::TabbedSelector;
+		const auto outer = getDelegate()->outerContainer();
+		_emojiPanel = base::make_unique_q<ChatHelpers::TabbedPanel>(
+			outer,
+			_controller,
+			object_ptr<Selector>(
+				nullptr,
+				_controller->uiShow(),
+				Window::GifPauseReason::Layer,
+				Selector::Mode::EmojiOnly));
+		const auto emojiPanel = _emojiPanel.get();
+		emojiPanel->setDesiredHeightValues(
+			1.,
+			st::emojiPanMinHeight / 2,
+			st::emojiPanMinHeight);
+		emojiPanel->hide();
+		emojiPanel->selector()->setCurrentPeer(session->user());
+
+		const auto emojiToggle = Ui::AddEmojiToggleToField(
+			title,
+			this,
+			_controller,
+			emojiPanel,
+			st::createPollOptionFieldPremiumEmojiPosition);
+		emojiPanel->selector()->emojiChosen(
+		) | rpl::start_with_next([=](ChatHelpers::EmojiChosen data) {
+			if (title->hasFocus()) {
+				Ui::InsertEmojiAtCursor(title->textCursor(), data.emoji);
+			}
+		}, emojiToggle->lifetime());
+		emojiPanel->selector()->customEmojiChosen(
+		) | rpl::start_with_next([=](ChatHelpers::FileChosen data) {
+			if (title->hasFocus()) {
+				Data::InsertCustomEmoji(title, data.document);
+			}
+		}, emojiToggle->lifetime());
+	}
+
+	const auto warning = CreateWarningLabel(
+		container,
+		title,
+		_titleLimit,
+		kWarnTitleLimit);
+	rpl::combine(
+		title->geometryValue(),
+		warning->sizeValue()
+	) | rpl::start_with_next([=](QRect geometry, QSize label) {
+		warning->moveToLeft(
+			(container->width()
+				- label.width()
+				- st::createPollWarningPosition.x()),
+			(geometry.y()
+				- st::createPollFieldPadding.top()
+				- st::defaultSubsectionTitlePadding.bottom()
+				- st::defaultSubsectionTitle.style.font->height
+				+ st::defaultSubsectionTitle.style.font->ascent
+				- st::createPollWarning.style.font->ascent),
+			geometry.width());
+	}, warning->lifetime());
+
+	return title;
+}
+
+object_ptr<Ui::RpWidget> CreateTodoListBox::setupContent() {
+	using namespace Settings;
+
+	const auto id = FullMsgId{
+		PeerId(),
+		_controller->session().data().nextNonHistoryEntryId(),
+	};
+	const auto error = lifetime().make_state<Errors>(Error::Title);
+
+	auto result = object_ptr<Ui::VerticalLayout>(this);
+	const auto container = result.data();
+
+	const auto title = setupTitle(container);
+	Ui::AddDivider(container);
+	Ui::AddSkip(container);
+	container->add(
+		object_ptr<Ui::FlatLabel>(
+			container,
+			tr::lng_todo_create_list(),
+			st::defaultSubsectionTitle),
+		st::createPollFieldTitlePadding);
+	const auto tasks = lifetime().make_state<Tasks>(
+		this,
+		container,
+		_controller,
+		_emojiPanel ? _emojiPanel.get() : nullptr);
+	auto limit = tasks->usedCount() | rpl::after_next([=](int count) {
+		setCloseByEscape(!count);
+		setCloseByOutsideClick(!count);
+	}) | rpl::map([=](int count) {
+		const auto appConfig = &_controller->session().appConfig();
+		const auto max = appConfig->todoListItemsLimit();
+		return (count < max)
+			? tr::lng_todo_create_limit(tr::now, lt_count, max - count)
+			: tr::lng_todo_create_maximum(tr::now);
+	}) | rpl::after_next([=] {
+		container->resizeToWidth(container->widthNoMargins());
+	});
+	container->add(
+		object_ptr<Ui::DividerLabel>(
+			container,
+			object_ptr<Ui::FlatLabel>(
+				container,
+				std::move(limit),
+				st::boxDividerLabel),
+			st::createPollLimitPadding));
+
+	title->tabbed(
+	) | rpl::start_with_next([=] {
+		tasks->focusFirst();
+	}, title->lifetime());
+
+	Ui::AddSkip(container);
+	Ui::AddSubsectionTitle(container, tr::lng_todo_create_settings());
+
+	const auto allowAdd = container->add(
+		object_ptr<Ui::Checkbox>(
+			container,
+			tr::lng_todo_create_allow_add(tr::now),
+			true,
+			st::defaultCheckbox),
+		st::createPollCheckboxMargin);
+	const auto allowMark = container->add(
+		object_ptr<Ui::Checkbox>(
+			container,
+			tr::lng_todo_create_allow_mark(tr::now),
+			true,
+			st::defaultCheckbox),
+		st::createPollCheckboxMargin);
+
+	tasks->tabbed(
+	) | rpl::start_with_next([=] {
+		title->setFocus();
+	}, title->lifetime());
+
+	const auto isValidTitle = [=] {
+		const auto text = title->getLastText().trimmed();
+		return !text.isEmpty() && (text.size() <= _titleLimit);
+	};
+	title->submits(
+	) | rpl::start_with_next([=] {
+		if (isValidTitle()) {
+			tasks->focusFirst();
+		}
+	}, title->lifetime());
+
+	_setInnerFocus = [=] {
+		title->setFocusFast();
+	};
+
+	const auto collectResult = [=] {
+		const auto textWithTags = title->getTextWithTags();
+		using Flag = TodoListData::Flag;
+		auto result = TodoListData(&_controller->session().data(), id);
+		result.title.text = textWithTags.text;
+		result.title.entities = TextUtilities::ConvertTextTagsToEntities(
+			textWithTags.tags);
+		TextUtilities::Trim(result.title);
+		result.items = tasks->toTodoListItems();
+		const auto allowAddTasks = allowAdd->checked();
+		const auto allowMarkTasks = allowMark->checked();
+		result.setFlags(Flag(0)
+			| (allowAddTasks ? Flag::OthersCanAppend : Flag(0))
+			| (allowMarkTasks ? Flag::OthersCanComplete : Flag(0)));
+		return result;
+	};
+	const auto collectError = [=] {
+		if (isValidTitle()) {
+			*error &= ~Error::Title;
+		} else {
+			*error |= Error::Title;
+		}
+		if (!tasks->hasTasks()) {
+			*error |= Error::Tasks;
+		} else if (!tasks->isValid()) {
+			*error |= Error::Other;
+		} else {
+			*error &= ~(Error::Tasks | Error::Other);
+		}
+	};
+	const auto showError = [show = uiShow()](
+			tr::phrase<> text) {
+		show->showToast(text(tr::now));
+	};
+
+	const auto send = [=](Api::SendOptions sendOptions) {
+		collectError();
+		if (*error & Error::Title) {
+			showError(tr::lng_todo_choose_title);
+			title->setFocus();
+		} else if (*error & Error::Tasks) {
+			showError(tr::lng_todo_choose_tasks);
+			tasks->focusFirst();
+		} else if (!*error) {
+			_submitRequests.fire({ collectResult(), sendOptions });
+		}
+	};
+	const auto sendAction = SendMenu::DefaultCallback(
+		_controller->uiShow(),
+		crl::guard(this, send));
+
+	tasks->scrollToWidget(
+	) | rpl::start_with_next([=](not_null<QWidget*> widget) {
+		scrollToWidget(widget);
+	}, lifetime());
+
+	tasks->backspaceInFront(
+	) | rpl::start_with_next([=] {
+		FocusAtEnd(title);
+	}, lifetime());
+
+	const auto isNormal = (_sendType == Api::SendType::Normal);
+	const auto schedule = [=] {
+		sendAction(
+			{ .type = SendMenu::ActionType::Schedule },
+			_sendMenuDetails());
+	};
+	const auto submit = addButton(
+		tr::lng_todo_create_button(),
+		[=] { isNormal ? send({}) : schedule(); });
+	submit->setText(PaidSendButtonText(_starsRequired.value(), isNormal
+		? tr::lng_todo_create_button()
+		: tr::lng_schedule_button()));
+	const auto sendMenuDetails = [=] {
+		collectError();
+		return (*error) ? SendMenu::Details() : _sendMenuDetails();
+	};
+	SendMenu::SetupMenuAndShortcuts(
+		submit.data(),
+		_controller->uiShow(),
+		sendMenuDetails,
+		sendAction);
+	addButton(tr::lng_cancel(), [=] { closeBox(); });
+
+	return result;
+}
+
+void CreateTodoListBox::prepare() {
+	setTitle(tr::lng_todo_create_title());
+
+	const auto inner = setInnerWidget(setupContent());
+
+	setDimensionsToContent(st::boxWideWidth, inner);
+}

Telegram/SourceFiles/boxes/create_todo_list_box.h

@@ -0,0 +1,78 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "ui/layers/box_content.h"
+#include "api/api_common.h"
+#include "data/data_todo_list.h"
+#include "base/flags.h"
+
+struct TodoListData;
+
+namespace ChatHelpers {
+class TabbedPanel;
+} // namespace ChatHelpers
+
+namespace Ui {
+class VerticalLayout;
+} // namespace Ui
+
+namespace Window {
+class SessionController;
+} // namespace Window
+
+namespace SendMenu {
+struct Details;
+} // namespace SendMenu
+
+class CreateTodoListBox : public Ui::BoxContent {
+public:
+	struct Result {
+		TodoListData todolist;
+		Api::SendOptions options;
+	};
+
+	CreateTodoListBox(
+		QWidget*,
+		not_null<Window::SessionController*> controller,
+		rpl::producer<int> starsRequired,
+		Api::SendType sendType,
+		SendMenu::Details sendMenuDetails);
+
+	[[nodiscard]] rpl::producer<Result> submitRequests() const;
+	void submitFailed(const QString &error);
+
+	void setInnerFocus() override;
+
+protected:
+	void prepare() override;
+
+private:
+	enum class Error {
+		Title = 0x01,
+		Tasks = 0x02,
+		Other = 0x04,
+	};
+	friend constexpr inline bool is_flag_type(Error) { return true; }
+	using Errors = base::flags<Error>;
+
+	[[nodiscard]] object_ptr<Ui::RpWidget> setupContent();
+	[[nodiscard]] not_null<Ui::InputField*> setupTitle(
+		not_null<Ui::VerticalLayout*> container);
+
+	const not_null<Window::SessionController*> _controller;
+	const Api::SendType _sendType = Api::SendType();
+	const Fn<SendMenu::Details()> _sendMenuDetails;
+	rpl::variable<int> _starsRequired;
+	base::unique_qptr<ChatHelpers::TabbedPanel> _emojiPanel;
+	Fn<void()> _setInnerFocus;
+	Fn<rpl::producer<bool>()> _dataIsValidValue;
+	rpl::event_stream<Result> _submitRequests;
+	int _titleLimit = 0;
+
+};

Telegram/SourceFiles/data/data_peer.cpp

@@ -684,6 +684,10 @@ bool PeerData::canCreatePolls() const {
 	return Data::CanSend(this, ChatRestriction::SendPolls);
 }
 
+bool PeerData::canCreateTodoLists() const {
+	return Data::CanSend(this, ChatRestriction::SendPolls) || isUser();
+}
+
 bool PeerData::canCreateTopics() const {
 	if (const auto channel = asChannel()) {
 		return channel->isForum()

Telegram/SourceFiles/data/data_peer.h

@@ -429,6 +429,7 @@ public:
 	[[nodiscard]] bool canPinMessages() const;
 	[[nodiscard]] bool canEditMessagesIndefinitely() const;
 	[[nodiscard]] bool canCreatePolls() const;
+	[[nodiscard]] bool canCreateTodoLists() const;
 	[[nodiscard]] bool canCreateTopics() const;
 	[[nodiscard]] bool canManageTopics() const;
 	[[nodiscard]] bool canManageGifts() const;

Telegram/SourceFiles/history/view/history_view_top_bar_widget.cpp

@@ -1144,6 +1144,9 @@ void TopBarWidget::updateControlsVisibility() {
 	const auto hasPollsMenu = (_activeChat.key.peer()
 		&& _activeChat.key.peer()->canCreatePolls())
 		|| (topic && Data::CanSend(topic, ChatRestriction::SendPolls));
+	const auto hasTodoListsMenu = (_activeChat.key.peer()
+		&& _activeChat.key.peer()->canCreateTodoLists())
+		|| (topic && Data::CanSend(topic, ChatRestriction::SendPolls));
 	const auto hasTopicMenu = [&] {
 		if (!topic || section != Section::Replies) {
 			return false;
@@ -1163,9 +1166,9 @@ void TopBarWidget::updateControlsVisibility() {
 		&& (section == Section::History
 			? true
 			: (section == Section::Scheduled)
-			? hasPollsMenu
+			? (hasPollsMenu || hasTodoListsMenu)
 			: (section == Section::Replies)
-			? (hasPollsMenu || hasTopicMenu)
+			? (hasPollsMenu || hasTodoListsMenu || hasTopicMenu)
 			: (section == Section::ChatsList)
 			? (_activeChat.key.peer() && _activeChat.key.peer()->isForum())
 			: false);

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

@@ -121,7 +121,7 @@ void TodoList::setupPreviousState(const std::vector<TodoTaskInfo> &info) {
 }
 
 QSize TodoList::countOptimalSize() {
-	updateTexts();
+ 	updateTexts();
 
 	const auto paddings = st::msgPadding.left() + st::msgPadding.right();
 

Telegram/SourceFiles/inline_bots/bot_attach_web_view.cpp

@@ -2626,6 +2626,26 @@ std::unique_ptr<Ui::DropdownMenu> MakeAttachBotsMenu(
 				{ sendMenuType });
 		}, &st::menuIconCreatePoll);
 	}
+	if (peer->canCreateTodoLists()) {
+		++minimal;
+		raw->addAction(tr::lng_todo_create(tr::now), [=] {
+			const auto action = actionFactory();
+			const auto source = action.options.scheduled
+				? Api::SendType::Scheduled
+				: Api::SendType::Normal;
+			const auto sendMenuType = (action.replyTo.topicRootId
+				|| action.history->peer->starsPerMessageChecked())
+				? SendMenu::Type::SilentOnly
+				: SendMenu::Type::Scheduled;
+			const auto replyTo = action.replyTo;
+			Window::PeerMenuCreateTodoList(
+				controller,
+				peer,
+				replyTo,
+				source,
+				{ sendMenuType });
+		}, &st::menuIconCreateTodoList);
+	}
 	const auto session = &controller->session();
 	const auto locationType = ChatRestriction::SendOther;
 	const auto config = ResolveMapsConfig(session);

Telegram/SourceFiles/main/main_app_config.cpp

@@ -145,9 +145,21 @@ int AppConfig::giftResaleReceiveThousandths() const {
 }
 
 int AppConfig::pollOptionsLimit() const {
+	return get<int>(u"poll_answers_max"_q, 12);
+}
+
+int AppConfig::todoListItemsLimit() const {
 	return get<int>(
-		u"poll_answers_max"_q,
-		_account->mtp().isTestMode() ? 12 : 10);
+		u"todo_items_max"_q,
+		_account->mtp().isTestMode() ? 10 : 30);
+}
+
+int AppConfig::todoListTitleLimit() const {
+	return get<int>(u"todo_title_length_max"_q, 32);
+}
+
+int AppConfig::todoListItemTextLimit() const {
+	return get<int>(u"todo_item_length_max"_q, 64);
 }
 
 void AppConfig::refresh(bool force) {

Telegram/SourceFiles/main/main_app_config.h

@@ -84,6 +84,9 @@ public:
 	[[nodiscard]] int giftResaleReceiveThousandths() const;
 
 	[[nodiscard]] int pollOptionsLimit() const;
+	[[nodiscard]] int todoListItemsLimit() const;
+	[[nodiscard]] int todoListTitleLimit() const;
+	[[nodiscard]] int todoListItemTextLimit() const;
 
 	void refresh(bool force = false);
 

Telegram/SourceFiles/ui/menu_icons.style

@@ -57,6 +57,7 @@ menuIconStats: icon {{ "menu/stats", menuIconColor }};
 menuIconBoosts: icon {{ "menu/boosts", menuIconColor }};
 menuIconEarn: icon {{ "menu/earn", menuIconColor }};
 menuIconCreatePoll: icon {{ "menu/create_poll", menuIconColor }};
+menuIconCreateTodoList: icon {{ "menu/select", menuIconColor }};
 menuIconQrCode: icon {{ "menu/qr_code", menuIconColor }};
 menuIconExpand: icon {{ "menu/expand", menuIconColor }};
 menuIconCollapse: icon {{ "menu/collapse", menuIconColor }};

Telegram/SourceFiles/window/window_peer_menu.cpp

@@ -29,6 +29,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/moderate_messages_box.h"
 #include "boxes/choose_filter_box.h"
 #include "boxes/create_poll_box.h"
+#include "boxes/create_todo_list_box.h"
 #include "boxes/pin_messages_box.h"
 #include "boxes/premium_limits_box.h"
 #include "boxes/report_messages_box.h"
@@ -59,6 +60,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "api/api_blocked_peers.h"
 #include "api/api_chat_filters.h"
 #include "api/api_polls.h"
+#include "api/api_todo_lists.h"
 #include "api/api_updates.h"
 #include "mtproto/mtproto_config.h"
 #include "history/history.h"
@@ -290,6 +292,7 @@ private:
 	void addManageTopic();
 	void addManageChat();
 	void addCreatePoll();
+	void addCreateTodoList();
 	void addThemeEdit();
 	void addBlockUser();
 	void addViewDiscussion();
@@ -315,6 +318,8 @@ private:
 	void addViewStatistics();
 	void addBoostChat();
 
+	[[nodiscard]] bool skipCreateActions() const;
+
 	not_null<SessionController*> _controller;
 	Dialogs::EntryState _request;
 	Data::Thread *_thread = nullptr;
@@ -1165,7 +1170,7 @@ void Filler::addViewStatistics() {
 	}
 }
 
-void Filler::addCreatePoll() {
+bool Filler::skipCreateActions() const {
 	const auto isJoinChannel = [&] {
 		if (_request.section != Section::Replies) {
 			if (const auto c = _peer->asChannel(); c && !c->amIn()) {
@@ -1190,10 +1195,13 @@ void Filler::addCreatePoll() {
 	const auto isBlocked = [&] {
 		return _peer && _peer->isUser() && _peer->asUser()->isBlocked();
 	}();
-	if (isBlocked || isJoinChannel || isBotStart) {
+	return isBlocked || isJoinChannel || isBotStart;
+}
+
+void Filler::addCreatePoll() {
+	if (skipCreateActions()) {
 		return;
 	}
-
 	const auto can = _topic
 		? Data::CanSend(_topic, ChatRestriction::SendPolls)
 		: _peer->canCreatePolls();
@@ -1229,6 +1237,42 @@ void Filler::addCreatePoll() {
 		&st::menuIconCreatePoll);
 }
 
+void Filler::addCreateTodoList() {
+	if (skipCreateActions()) {
+		return;
+	}
+	const auto can = _topic
+		? Data::CanSend(_topic, ChatRestriction::SendPolls)
+		: _peer->canCreateTodoLists();
+	if (!can) {
+		return;
+	}
+	const auto peer = _peer;
+	const auto controller = _controller;
+	const auto source = (_request.section == Section::Scheduled)
+		? Api::SendType::Scheduled
+		: Api::SendType::Normal;
+	const auto sendMenuType = (_request.section == Section::Scheduled)
+		? SendMenu::Type::Disabled
+		: (_request.section == Section::Replies
+			|| _peer->starsPerMessageChecked())
+		? SendMenu::Type::SilentOnly
+		: SendMenu::Type::Scheduled;
+	const auto replyTo = _request.currentReplyTo;
+	auto callback = [=] {
+		PeerMenuCreateTodoList(
+			controller,
+			peer,
+			replyTo,
+			source,
+			{ sendMenuType });
+	};
+	_addAction(
+		tr::lng_todo_create(tr::now),
+		std::move(callback),
+		&st::menuIconCreateTodoList);
+}
+
 void Filler::addThemeEdit() {
 	if (_peer->isVerifyCodes() || _peer->isRepliesChat()) {
 		return;
@@ -1481,6 +1525,7 @@ void Filler::fillHistoryActions() {
 	addSupportInfo();
 	addBoostChat();
 	addCreatePoll();
+	addCreateTodoList();
 	addThemeEdit();
 	addViewDiscussion();
 	addDirectMessages();
@@ -1525,12 +1570,14 @@ void Filler::fillRepliesActions() {
 	}
 	addBoostChat();
 	addCreatePoll();
+	addCreateTodoList();
 	addToggleTopicClosed();
 	addDeleteTopic();
 }
 
 void Filler::fillScheduledActions() {
 	addCreatePoll();
+	addCreateTodoList();
 }
 
 void Filler::fillArchiveActions() {
@@ -1873,6 +1920,74 @@ void PeerMenuCreatePoll(
 	controller->show(std::move(box), Ui::LayerOption::CloseOther);
 }
 
+void PeerMenuCreateTodoList(
+		not_null<Window::SessionController*> controller,
+		not_null<PeerData*> peer,
+		FullReplyTo replyTo,
+		Api::SendType sendType,
+		SendMenu::Details sendMenuDetails) {
+	auto starsRequired = peer->session().changes().peerFlagsValue(
+		peer,
+		Data::PeerUpdate::Flag::FullInfo
+		| Data::PeerUpdate::Flag::StarsPerMessage
+	) | rpl::map([=] {
+		return peer->starsPerMessageChecked();
+	});
+	auto box = Box<CreateTodoListBox>(
+		controller,
+		std::move(starsRequired),
+		sendType,
+		sendMenuDetails);
+	struct State {
+		Fn<void(const CreateTodoListBox::Result &)> create;
+		SendPaymentHelper sendPayment;
+		bool lock = false;
+	};
+	const auto weak = QPointer<CreateTodoListBox>(box);
+	const auto state = box->lifetime().make_state<State>();
+	state->create = [=](const CreateTodoListBox::Result &result) {
+		const auto withPaymentApproved = crl::guard(weak, [=](int stars) {
+			if (const auto onstack = state->create) {
+				auto copy = result;
+				copy.options.starsApproved = stars;
+				onstack(copy);
+			}
+		});
+		const auto checked = state->sendPayment.check(
+			controller,
+			peer,
+			1,
+			result.options.starsApproved,
+			withPaymentApproved);
+		if (!checked || std::exchange(state->lock, true)) {
+			return;
+		}
+		auto action = Api::SendAction(
+			peer->owner().history(peer),
+			result.options);
+		action.replyTo = replyTo;
+		const auto local = action.history->localDraft(
+			replyTo.topicRootId,
+			replyTo.monoforumPeerId);
+		if (local) {
+			action.clearDraft = local->textWithTags.text.isEmpty();
+		} else {
+			action.clearDraft = false;
+		}
+		const auto api = &peer->session().api();
+		api->todoLists().create(result.todolist, action, crl::guard(weak, [=] {
+			state->create = nullptr;
+			weak->closeBox();
+		}), crl::guard(weak, [=] {
+			state->lock = false;
+			weak->submitFailed(tr::lng_attach_failed(tr::now));
+		}));
+	};
+	box->submitRequests(
+	) | rpl::start_with_next(state->create, box->lifetime());
+	controller->show(std::move(box), Ui::LayerOption::CloseOther);
+}
+
 void PeerMenuBlockUserBox(
 		not_null<Ui::GenericBox*> box,
 		not_null<Window::Controller*> window,

Telegram/SourceFiles/window/window_peer_menu.h

@@ -111,6 +111,12 @@ void PeerMenuCreatePoll(
 	PollData::Flags disabled = PollData::Flags(),
 	Api::SendType sendType = Api::SendType::Normal,
 	SendMenu::Details sendMenuDetails = SendMenu::Details());
+void PeerMenuCreateTodoList(
+	not_null<Window::SessionController*> controller,
+	not_null<PeerData*> peer,
+	FullReplyTo replyTo = FullReplyTo(),
+	Api::SendType sendType = Api::SendType::Normal,
+	SendMenu::Details sendMenuDetails = SendMenu::Details());
 void PeerMenuDeleteTopicWithConfirmation(
 	not_null<Window::SessionNavigation*> navigation,
 	not_null<Data::ForumTopic*> topic);