Support mark as read/unread in sublists.

Telegram/SourceFiles/apiwrap.cpp

@@ -1373,6 +1373,32 @@ void ApiWrap::deleteAllFromParticipantSend(
 	}).send();
 }
 
+void ApiWrap::deleteSublistHistory(
+		not_null<ChannelData*> channel,
+		not_null<PeerData*> sublistPeer) {
+	deleteSublistHistorySend(channel, sublistPeer);
+}
+
+void ApiWrap::deleteSublistHistorySend(
+		not_null<ChannelData*> parentChat,
+		not_null<PeerData*> sublistPeer) {
+	request(MTPmessages_DeleteSavedHistory(
+		MTP_flags(MTPmessages_DeleteSavedHistory::Flag::f_parent_peer),
+		parentChat->input,
+		sublistPeer->input,
+		MTP_int(0), // max_id
+		MTP_int(0), // min_date
+		MTP_int(0) // max_date
+	)).done([=](const MTPmessages_AffectedHistory &result) {
+		const auto offset = applyAffectedHistory(parentChat, result);
+		if (offset > 0) {
+			deleteSublistHistorySend(parentChat, sublistPeer);
+		} else if (const auto monoforum = parentChat->monoforum()) {
+			monoforum->applySublistDeleted(sublistPeer);
+		}
+	}).send();
+}
+
 void ApiWrap::scheduleStickerSetRequest(uint64 setId, uint64 access) {
 	if (!_stickerSetRequests.contains(setId)) {
 		_stickerSetRequests.emplace(setId, StickerSetRequest{ access });

Telegram/SourceFiles/apiwrap.h

@@ -231,6 +231,9 @@ public:
 	void deleteAllFromParticipant(
 		not_null<ChannelData*> channel,
 		not_null<PeerData*> from);
+	void deleteSublistHistory(
+		not_null<ChannelData*> parentChat,
+		not_null<PeerData*> sublistPeer);
 
 	void requestWebPageDelayed(not_null<WebPageData*> page);
 	void clearWebPageRequest(not_null<WebPageData*> page);
@@ -539,6 +542,9 @@ private:
 	void deleteAllFromParticipantSend(
 		not_null<ChannelData*> channel,
 		not_null<PeerData*> from);
+	void deleteSublistHistorySend(
+		not_null<ChannelData*> parentChat,
+		not_null<PeerData*> sublistPeer);
 
 	void uploadAlbumMedia(
 		not_null<HistoryItem*> item,

Telegram/SourceFiles/boxes/moderate_messages_box.cpp

@@ -23,6 +23,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_chat_participant_status.h"
 #include "data/data_histories.h"
 #include "data/data_peer.h"
+#include "data/data_saved_sublist.h"
 #include "data/data_session.h"
 #include "data/data_user.h"
 #include "data/stickers/data_custom_emoji.h"
@@ -565,15 +566,7 @@ bool CanCreateModerateMessagesBox(const HistoryItemsList &items) {
 		&& !options.participants.empty();
 }
 
-void DeleteChatBox(not_null<Ui::GenericBox*> box, not_null<PeerData*> peer) {
-	const auto container = box->verticalLayout();
-
-	const auto maybeUser = peer->asUser();
-	const auto isBot = maybeUser && maybeUser->isBot();
-
-	Ui::AddSkip(container);
-	Ui::AddSkip(container);
-
+void SafeSubmitOnEnter(not_null<Ui::GenericBox*> box) {
 	base::install_event_filter(box, [=](not_null<QEvent*> event) {
 		if (event->type() == QEvent::KeyPress) {
 			if (const auto k = static_cast<QKeyEvent*>(event.get())) {
@@ -587,12 +580,24 @@ void DeleteChatBox(not_null<Ui::GenericBox*> box, not_null<PeerData*> peer) {
 						},
 						.confirmText = tr::lng_box_yes(),
 						.cancelText = tr::lng_box_no(),
-					}));
+						}));
 				}
 			}
 		}
 		return base::EventFilterResult::Continue;
 	});
+}
+
+void DeleteChatBox(not_null<Ui::GenericBox*> box, not_null<PeerData*> peer) {
+	const auto container = box->verticalLayout();
+
+	const auto maybeUser = peer->asUser();
+	const auto isBot = maybeUser && maybeUser->isBot();
+
+	Ui::AddSkip(container);
+	Ui::AddSkip(container);
+
+	SafeSubmitOnEnter(box);
 
 	const auto userpic = Ui::CreateChild<Ui::UserpicButton>(
 		container,
@@ -754,3 +759,54 @@ void DeleteChatBox(not_null<Ui::GenericBox*> box, not_null<PeerData*> peer) {
 	}, st::attentionBoxButton);
 	box->addButton(tr::lng_cancel(), close);
 }
+
+void DeleteSublistBox(
+		not_null<Ui::GenericBox*> box,
+		not_null<Data::SavedSublist*> sublist) {
+	const auto container = box->verticalLayout();
+
+	const auto weak = base::make_weak(sublist.get());
+	const auto peer = sublist->sublistPeer();
+
+	Ui::AddSkip(container);
+	Ui::AddSkip(container);
+
+	SafeSubmitOnEnter(box);
+
+	const auto userpic = Ui::CreateChild<Ui::UserpicButton>(
+		container,
+		peer,
+		st::mainMenuUserpic);
+	Ui::IconWithTitle(
+		container,
+		userpic,
+		Ui::CreateChild<Ui::FlatLabel>(
+			container,
+			tr::lng_profile_delete_conversation() | Ui::Text::ToBold(),
+			box->getDelegate()->style().title));
+
+	Ui::AddSkip(container);
+	Ui::AddSkip(container);
+
+	box->addRow(
+		object_ptr<Ui::FlatLabel>(
+			container,
+			tr::lng_sure_delete_history(
+				lt_contact,
+				rpl::single(peer->name())),
+			st::boxLabel));
+
+	Ui::AddSkip(container);
+
+	const auto close = crl::guard(box, [=] { box->closeBox(); });
+	box->addButton(tr::lng_box_delete(), [=] {
+		const auto strong = weak.get();
+		const auto parentChat = strong ? strong->parentChat() : nullptr;
+		if (!parentChat) {
+			return;
+		}
+		peer->session().api().deleteSublistHistory(parentChat, peer);
+		close();
+	}, st::attentionBoxButton);
+	box->addButton(tr::lng_cancel(), close);
+}

Telegram/SourceFiles/boxes/moderate_messages_box.h

@@ -9,6 +9,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 class PeerData;
 
+namespace Data {
+class SavedSublist;
+} // namespace Data
+
 namespace Ui {
 class GenericBox;
 } // namespace Ui
@@ -21,3 +25,6 @@ void CreateModerateMessagesBox(
 [[nodiscard]] bool CanCreateModerateMessagesBox(const HistoryItemsList &);
 
 void DeleteChatBox(not_null<Ui::GenericBox*> box, not_null<PeerData*> peer);
+void DeleteSublistBox(
+	not_null<Ui::GenericBox*> box,
+	not_null<Data::SavedSublist*> sublist);

Telegram/SourceFiles/boxes/peer_list_box.cpp

@@ -714,7 +714,7 @@ void PeerListRow::elementsPaint(
 }
 
 QString PeerListRow::generateName() {
-	return peer()->name();
+	return peer()->userpicPaintingPeer()->name();
 }
 
 QString PeerListRow::generateShortName() {
@@ -724,12 +724,12 @@ QString PeerListRow::generateShortName() {
 		? tr::lng_replies_messages(tr::now)
 		: _isVerifyCodesChat
 		? tr::lng_verification_codes(tr::now)
-		: peer()->shortName();
+		: peer()->userpicPaintingPeer()->shortName();
 }
 
 Ui::PeerUserpicView &PeerListRow::ensureUserpicView() {
-	if (!_userpic.cloud && peer()->hasUserpic()) {
-		_userpic = peer()->createUserpicView();
+	if (!_userpic.cloud && peer()->userpicPaintingPeer()->hasUserpic()) {
+		_userpic = peer()->userpicPaintingPeer()->createUserpicView();
 	}
 	return _userpic;
 }
@@ -738,7 +738,7 @@ PaintRoundImageCallback PeerListRow::generatePaintUserpicCallback(
 		bool forceRound) {
 	const auto saved = !_savedMessagesStatus.isEmpty();
 	const auto replies = _isRepliesMessagesChat;
-	const auto peer = this->peer();
+	const auto peer = this->peer()->userpicPaintingPeer();
 	auto userpic = saved ? Ui::PeerUserpicView() : ensureUserpicView();
 	if (forceRound && peer->isForum()) {
 		return ForceRoundUserpicCallback(peer);

Telegram/SourceFiles/data/data_changes.cpp

@@ -204,6 +204,42 @@ void Changes::topicRemoved(not_null<ForumTopic*> topic) {
 	_topicChanges.drop(topic);
 }
 
+void Changes::sublistUpdated(
+		not_null<SavedSublist*> sublist,
+		SublistUpdate::Flags flags) {
+	const auto drop = (flags & SublistUpdate::Flag::Destroyed);
+	_sublistChanges.updated(sublist, flags, drop);
+	if (!drop) {
+		scheduleNotifications();
+	}
+}
+
+rpl::producer<SublistUpdate> Changes::sublistUpdates(
+		SublistUpdate::Flags flags) const {
+	return _sublistChanges.updates(flags);
+}
+
+rpl::producer<SublistUpdate> Changes::sublistUpdates(
+		not_null<SavedSublist*> sublist,
+		SublistUpdate::Flags flags) const {
+	return _sublistChanges.updates(sublist, flags);
+}
+
+rpl::producer<SublistUpdate> Changes::sublistFlagsValue(
+		not_null<SavedSublist*> sublist,
+		SublistUpdate::Flags flags) const {
+	return _sublistChanges.flagsValue(sublist, flags);
+}
+
+rpl::producer<SublistUpdate> Changes::realtimeSublistUpdates(
+		SublistUpdate::Flag flag) const {
+	return _sublistChanges.realtimeUpdates(flag);
+}
+
+void Changes::sublistRemoved(not_null<SavedSublist*> sublist) {
+	_sublistChanges.drop(sublist);
+}
+
 void Changes::messageUpdated(
 		not_null<HistoryItem*> item,
 		MessageUpdate::Flags flags) {
@@ -323,6 +359,7 @@ void Changes::sendNotifications() {
 	_messageChanges.sendNotifications();
 	_entryChanges.sendNotifications();
 	_topicChanges.sendNotifications();
+	_sublistChanges.sendNotifications();
 	_storyChanges.sendNotifications();
 }
 

Telegram/SourceFiles/data/data_changes.h

@@ -38,6 +38,7 @@ inline constexpr int CountBit(Flag Last = Flag::LastUsedBit) {
 namespace Data {
 
 class ForumTopic;
+class SavedSublist;
 class Story;
 
 struct NameUpdate {
@@ -184,6 +185,25 @@ struct TopicUpdate {
 
 };
 
+struct SublistUpdate {
+	enum class Flag : uint32 {
+		None = 0,
+
+		UnreadView = (1U << 1),
+		UnreadReactions = (1U << 2),
+		CloudDraft = (1U << 3),
+		Destroyed = (1U << 4),
+
+		LastUsedBit = (1U << 4),
+	};
+	using Flags = base::flags<Flag>;
+	friend inline constexpr auto is_flag_type(Flag) { return true; }
+
+	not_null<SavedSublist*> sublist;
+	Flags flags = 0;
+
+};
+
 struct MessageUpdate {
 	enum class Flag : uint32 {
 		None = 0,
@@ -305,6 +325,21 @@ public:
 		TopicUpdate::Flag flag) const;
 	void topicRemoved(not_null<ForumTopic*> topic);
 
+	void sublistUpdated(
+		not_null<SavedSublist*> sublist,
+		SublistUpdate::Flags flags);
+	[[nodiscard]] rpl::producer<SublistUpdate> sublistUpdates(
+		SublistUpdate::Flags flags) const;
+	[[nodiscard]] rpl::producer<SublistUpdate> sublistUpdates(
+		not_null<SavedSublist*> sublist,
+		SublistUpdate::Flags flags) const;
+	[[nodiscard]] rpl::producer<SublistUpdate> sublistFlagsValue(
+		not_null<SavedSublist*> sublist,
+		SublistUpdate::Flags flags) const;
+	[[nodiscard]] rpl::producer<SublistUpdate> realtimeSublistUpdates(
+		SublistUpdate::Flag flag) const;
+	void sublistRemoved(not_null<SavedSublist*> sublist);
+
 	void messageUpdated(
 		not_null<HistoryItem*> item,
 		MessageUpdate::Flags flags);
@@ -396,6 +431,7 @@ private:
 	Manager<PeerData, PeerUpdate> _peerChanges;
 	Manager<History, HistoryUpdate> _historyChanges;
 	Manager<ForumTopic, TopicUpdate> _topicChanges;
+	Manager<SavedSublist, SublistUpdate> _sublistChanges;
 	Manager<HistoryItem, MessageUpdate> _messageChanges;
 	Manager<Dialogs::Entry, EntryUpdate> _entryChanges;
 	Manager<Story, StoryUpdate> _storyChanges;

Telegram/SourceFiles/data/data_forum.cpp

@@ -175,30 +175,31 @@ void Forum::applyTopicDeleted(MsgId rootId) {
 	_topicsDeleted.emplace(rootId);
 
 	const auto i = _topics.find(rootId);
-	if (i != end(_topics)) {
-		const auto raw = i->second.get();
-		Core::App().notifications().clearFromTopic(raw);
-		owner().removeChatListEntry(raw);
-
-		if (ranges::contains(_lastTopics, not_null(raw))) {
-			reorderLastTopics();
-		}
-
-		_topicDestroyed.fire(raw);
-		session().changes().topicUpdated(
-			raw,
-			Data::TopicUpdate::Flag::Destroyed);
-		session().changes().entryUpdated(
-			raw,
-			Data::EntryUpdate::Flag::Destroyed);
-		_topics.erase(i);
-
-		_history->destroyMessagesByTopic(rootId);
-		session().storage().unload(Storage::SharedMediaUnloadThread(
-			_history->peer->id,
-			rootId));
-		_history->setForwardDraft(rootId, PeerId(), {});
+	if (i == end(_topics)) {
+		return;
 	}
+	const auto raw = i->second.get();
+	Core::App().notifications().clearFromTopic(raw);
+	owner().removeChatListEntry(raw);
+
+	if (ranges::contains(_lastTopics, not_null(raw))) {
+		reorderLastTopics();
+	}
+
+	_topicDestroyed.fire(raw);
+	session().changes().topicUpdated(
+		raw,
+		Data::TopicUpdate::Flag::Destroyed);
+	session().changes().entryUpdated(
+		raw,
+		Data::EntryUpdate::Flag::Destroyed);
+	_topics.erase(i);
+
+	_history->destroyMessagesByTopic(rootId);
+	session().storage().unload(Storage::SharedMediaUnloadThread(
+		_history->peer->id,
+		rootId));
+	_history->setForwardDraft(rootId, PeerId(), {});
 }
 
 void Forum::reorderLastTopics() {

Telegram/SourceFiles/data/data_histories.cpp

@@ -10,6 +10,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "api/api_text_entities.h"
 #include "data/business/data_shortcut_messages.h"
 #include "data/components/scheduled_messages.h"
+#include "data/data_saved_sublist.h"
 #include "data/data_session.h"
 #include "data/data_channel.h"
 #include "data/data_chat.h"
@@ -500,6 +501,24 @@ void Histories::changeDialogUnreadMark(
 	)).send();
 }
 
+void Histories::changeSublistUnreadMark(
+		not_null<Data::SavedSublist*> sublist,
+		bool unread) {
+	const auto parent = sublist->parentChat();
+	if (!parent) {
+		return;
+	}
+	sublist->setUnreadMark(unread);
+
+	using Flag = MTPmessages_MarkDialogUnread::Flag;
+	session().api().request(MTPmessages_MarkDialogUnread(
+		MTP_flags(Flag::f_parent_peer
+			| (unread ? Flag::f_unread : Flag(0))),
+		parent->input,
+		MTP_inputDialogPeer(sublist->sublistPeer()->input)
+	)).send();
+}
+
 void Histories::requestFakeChatListMessage(
 		not_null<History*> history) {
 	if (_fakeChatListRequests.contains(history)) {

Telegram/SourceFiles/data/data_histories.h

@@ -26,6 +26,7 @@ namespace Data {
 class Session;
 class Folder;
 struct WebPageDraft;
+class SavedSublist;
 
 [[nodiscard]] MTPInputReplyTo ReplyToForMTP(
 	not_null<History*> history,
@@ -71,6 +72,9 @@ public:
 		Fn<void()> callback = nullptr);
 	void dialogEntryApplied(not_null<History*> history);
 	void changeDialogUnreadMark(not_null<History*> history, bool unread);
+	void changeSublistUnreadMark(
+		not_null<Data::SavedSublist*> sublist,
+		bool unread);
 	void requestFakeChatListMessage(not_null<History*> history);
 
 	void requestGroupAround(not_null<HistoryItem*> item);

Telegram/SourceFiles/data/data_peer.cpp

@@ -1174,6 +1174,10 @@ not_null<const PeerData*> PeerData::userpicPaintingPeer() const {
 	return const_cast<PeerData*>(this)->userpicPaintingPeer();
 }
 
+bool PeerData::userpicForceForumShape() const {
+	return monoforumBroadcast() != nullptr;
+}
+
 ChannelData *PeerData::monoforumBroadcast() const {
 	const auto monoforum = asMonoforum();
 	return monoforum ? monoforum->monoforumLink() : nullptr;

Telegram/SourceFiles/data/data_peer.h

@@ -307,6 +307,7 @@ public:
 	[[nodiscard]] not_null<const PeerData*> migrateToOrMe() const;
 	[[nodiscard]] not_null<PeerData*> userpicPaintingPeer();
 	[[nodiscard]] not_null<const PeerData*> userpicPaintingPeer() const;
+	[[nodiscard]] bool userpicForceForumShape() const;
 
 	// isMonoforum() ? monoforumLink() : nullptr
 	[[nodiscard]] ChannelData *monoforumBroadcast() const;

Telegram/SourceFiles/data/data_saved_messages.cpp

@@ -8,6 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_saved_messages.h"
 
 #include "apiwrap.h"
+#include "core/application.h"
 #include "data/data_changes.h"
 #include "data/data_channel.h"
 #include "data/data_user.h"
@@ -17,6 +18,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_item.h"
 #include "history/history_unread_things.h"
 #include "main/main_session.h"
+#include "window/notifications_manager.h"
 
 namespace Data {
 namespace {
@@ -50,11 +52,13 @@ SavedMessages::SavedMessages(
 
 SavedMessages::~SavedMessages() {
 	auto &changes = session().changes();
-	for (const auto &[peer, sublist] : _sublists) {
-		_owningHistory->setForwardDraft(MsgId(), peer->id, {});
+	if (_owningHistory) {
+		for (const auto &[peer, sublist] : _sublists) {
+			_owningHistory->setForwardDraft(MsgId(), peer->id, {});
 
-		const auto raw = sublist.get();
-		changes.entryRemoved(raw);
+			const auto raw = sublist.get();
+			changes.entryRemoved(raw);
+		}
 	}
 }
 
@@ -308,6 +312,36 @@ void SavedMessages::apply(const MTPDupdateSavedDialogPinned &update) {
 	});
 }
 
+void SavedMessages::applySublistDeleted(not_null<PeerData*> sublistPeer) {
+	const auto i = _sublists.find(sublistPeer);
+	if (i == end(_sublists)) {
+		return;
+	}
+	const auto raw = i->second.get();
+	//Core::App().notifications().clearFromTopic(raw); // #TODO monoforum
+	owner().removeChatListEntry(raw);
+
+	if (ranges::contains(_lastSublists, not_null(raw))) {
+		reorderLastSublists();
+	}
+
+	_sublistDestroyed.fire(raw);
+	session().changes().sublistUpdated(
+		raw,
+		Data::SublistUpdate::Flag::Destroyed);
+	session().changes().entryUpdated(
+		raw,
+		Data::EntryUpdate::Flag::Destroyed);
+	_sublists.erase(i);
+
+	const auto history = owningHistory();
+	history->destroyMessagesBySublist(sublistPeer);
+	//session().storage().unload(Storage::SharedMediaUnloadThread(
+	//	_history->peer->id,
+	//	rootId));
+	history->setForwardDraft(MsgId(), sublistPeer->id, {});
+}
+
 void SavedMessages::reorderLastSublists() {
 	if (!_parentChat) {
 		return;

Telegram/SourceFiles/data/data_saved_messages.h

@@ -50,6 +50,7 @@ public:
 
 	void apply(const MTPDupdatePinnedSavedDialogs &update);
 	void apply(const MTPDupdateSavedDialogPinned &update);
+	void applySublistDeleted(not_null<PeerData*> sublistPeer);
 
 	void listMessageChanged(HistoryItem *from, HistoryItem *to);
 	[[nodiscard]] int recentSublistsListVersion() const;

Telegram/SourceFiles/data/data_saved_sublist.cpp

@@ -480,6 +480,15 @@ void SavedSublist::setUnreadCount(std::optional<int> count) {
 	}
 }
 
+void SavedSublist::setUnreadMark(bool unread) {
+	if (unreadMark() == unread) {
+		return;
+	}
+	const auto notifier = unreadStateChangeNotifier(
+		!unreadCountCurrent());
+	Thread::setUnreadMarkFlag(unread);
+}
+
 bool SavedSublist::unreadCountKnown() const {
 	return !inMonoforum() || _unreadCount.current().has_value();
 }
@@ -620,6 +629,9 @@ void SavedSublist::readTill(
 	if (!IsServerMsgId(tillId)) {
 		return;
 	}
+	if (unreadMark()) {
+		owner().histories().changeSublistUnreadMark(this, false);
+	}
 	const auto was = computeInboxReadTillFull();
 	const auto now = tillId;
 	if (now < was) {
@@ -713,6 +725,7 @@ void SavedSublist::applyMonoforumDialog(
 		data.vread_inbox_max_id().v,
 		data.vunread_count().v);
 	setOutboxReadTill(data.vread_outbox_max_id().v);
+	setUnreadMark(data.is_unread_mark());
 	applyMaybeLast(topItem);
 }
 
@@ -1016,10 +1029,16 @@ Dialogs::UnreadState SavedSublist::unreadStateFor(
 		int count,
 		bool known) const {
 	auto result = Dialogs::UnreadState();
+	const auto mark = !count && unreadMark();
 	const auto muted = this->muted();
 	result.messages = count;
 	result.chats = count ? 1 : 0;
+	result.marks = mark ? 1 : 0;
+	result.reactions = unreadReactions().has() ? 1 : 0;
+	result.messagesMuted = muted ? result.messages : 0;
 	result.chatsMuted = muted ? result.chats : 0;
+	result.marksMuted = muted ? result.marks : 0;
+	result.reactionsMuted = muted ? result.reactions : 0;
 	result.known = known;
 	return result;
 }

Telegram/SourceFiles/data/data_saved_sublist.h

@@ -58,13 +58,13 @@ public:
 	[[nodiscard]] rpl::producer<> changes() const;
 	[[nodiscard]] std::optional<int> fullCount() const;
 	[[nodiscard]] rpl::producer<int> fullCountValue() const;
-	[[nodiscard]] rpl::producer<std::optional<int>> maybeFullCount() const;
 	void loadFullCount();
 
 	[[nodiscard]] bool unreadCountKnown() const;
 	[[nodiscard]] int unreadCountCurrent() const;
 	[[nodiscard]] int displayedUnreadCount() const;
 	[[nodiscard]] rpl::producer<std::optional<int>> unreadCountValue() const;
+	void setUnreadMark(bool unread);
 
 	void applyMonoforumDialog(
 		const MTPDmonoForumDialog &dialog,

Telegram/SourceFiles/data/data_thread.cpp

@@ -95,6 +95,17 @@ HistoryUnreadThings::ConstProxy Thread::unreadReactions() const {
 	};
 }
 
+bool Thread::canToggleUnread(bool nowUnread) const {
+	if ((asTopic() || asForum()) && !nowUnread) {
+		return false;
+	} else if (asSublist() && owningHistory()->peer->isSelf()) {
+		return false;
+	} else if (asHistory() && peer()->amMonoforumAdmin()) {
+		return false;
+	}
+	return true;
+}
+
 const base::flat_set<MsgId> &Thread::unreadMentionsIds() const {
 	if (!_unreadThings) {
 		static const auto Result = base::flat_set<MsgId>();

Telegram/SourceFiles/data/data_thread.h

@@ -80,6 +80,7 @@ public:
 	[[nodiscard]] HistoryUnreadThings::ConstProxy unreadReactions() const;
 	virtual void hasUnreadMentionChanged(bool has) = 0;
 	virtual void hasUnreadReactionChanged(bool has) = 0;
+	bool canToggleUnread(bool nowUnread) const;
 
 	void removeNotification(not_null<HistoryItem*> item);
 	void clearNotifications();

Telegram/SourceFiles/dialogs/dialogs_entry.cpp

@@ -287,6 +287,10 @@ void Entry::notifyUnreadStateChange(const UnreadState &wasState) {
 				}
 			}
 		}
+	} else if (const auto sublist = asSublist()) {
+		session().changes().sublistUpdated(
+			sublist,
+			Data::SublistUpdate::Flag::UnreadView);
 	}
 	updateChatListEntryPostponed();
 }

Telegram/SourceFiles/history/history.cpp

@@ -398,14 +398,18 @@ void History::applyCloudDraft(MsgId topicRootId, PeerId monoforumPeerId) {
 		createLocalDraftFromCloud(topicRootId, monoforumPeerId);
 		if (const auto thread = threadFor(topicRootId, monoforumPeerId)) {
 			thread->updateChatListSortPosition();
-			if (!topicRootId) {
-				session().changes().historyUpdated(
-					this,
-					UpdateFlag::CloudDraft);
-			} else {
+			if (topicRootId) {
 				session().changes().topicUpdated(
 					thread->asTopic(),
 					Data::TopicUpdate::Flag::CloudDraft);
+			} else if (monoforumPeerId) {
+				session().changes().sublistUpdated(
+					thread->asSublist(),
+					Data::SublistUpdate::Flag::CloudDraft);
+			} else {
+				session().changes().historyUpdated(
+					this,
+					UpdateFlag::CloudDraft);
 			}
 		}
 	}
@@ -633,6 +637,20 @@ void History::destroyMessagesByTopic(MsgId topicRootId) {
 	}
 }
 
+void History::destroyMessagesBySublist(not_null<PeerData*> sublistPeer) {
+	auto toDestroy = std::vector<not_null<HistoryItem*>>();
+	toDestroy.reserve(_items.size());
+	const auto peerId = sublistPeer->id;
+	for (const auto &message : _items) {
+		if (message->sublistPeerId() == peerId) {
+			toDestroy.push_back(message.get());
+		}
+	}
+	for (const auto item : toDestroy) {
+		item->destroy();
+	}
+}
+
 void History::unpinMessagesFor(MsgId topicRootId) {
 	if (!topicRootId) {
 		session().storage().remove(

Telegram/SourceFiles/history/history.h

@@ -139,6 +139,7 @@ public:
 	void destroyMessage(not_null<HistoryItem*> item);
 	void destroyMessagesByDates(TimeId minDate, TimeId maxDate);
 	void destroyMessagesByTopic(MsgId topicRootId);
+	void destroyMessagesBySublist(not_null<PeerData*> sublistPeer);
 
 	void unpinMessagesFor(MsgId topicRootId);
 

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -82,6 +82,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "lang/lang_keys.h"
 #include "data/components/factchecks.h"
 #include "data/components/sponsored_messages.h"
+#include "data/data_saved_sublist.h"
 #include "data/data_session.h"
 #include "data/data_document.h"
 #include "data/data_channel.h"
@@ -4963,9 +4964,17 @@ auto HistoryInner::DelegateMixin()
 
 bool CanSendReply(not_null<const HistoryItem*> item) {
 	const auto peer = item->history()->peer;
-	const auto topic = item->topic();
-	return topic
-		? Data::CanSendAnything(topic)
-		: (Data::CanSendAnything(peer)
-			&& (!peer->isChannel() || peer->asChannel()->amIn()));
+	if (const auto topic = item->topic()) {
+		return Data::CanSendAnything(topic);
+	} else if (!Data::CanSendAnything(peer)) {
+		return false;
+	} else if (const auto channel = peer->asChannel()) {
+		if (const auto sublist = item->savedSublist()) {
+			if (sublist->sublistPeer() == peer) {
+				return false;
+			}
+		}
+		return channel->amIn();
+	}
+	return true;
 }

Telegram/SourceFiles/history/history_item.cpp

@@ -2151,9 +2151,13 @@ void HistoryItem::addToUnreadThings(HistoryUnreadThings::AddType type) {
 		}
 	}
 	if (reaction) {
+		const auto sublist = this->savedSublist();
 		const auto toHistory = history->unreadReactions().add(id, type);
 		const auto toTopic = topic && topic->unreadReactions().add(id, type);
-		if (toHistory || toTopic) {
+		const auto toSublist = sublist
+			&& sublist->parentChat()
+			&& sublist->unreadReactions().add(id, type);
+		if (toHistory || toTopic || toSublist) {
 			if (type == HistoryUnreadThings::AddType::New) {
 				changes->messageUpdated(
 					this,
@@ -2170,6 +2174,11 @@ void HistoryItem::addToUnreadThings(HistoryUnreadThings::AddType type) {
 						topic,
 						Data::TopicUpdate::Flag::UnreadReactions);
 				}
+				if (toSublist) {
+					changes->sublistUpdated(
+						sublist,
+						Data::SublistUpdate::Flag::UnreadReactions);
+				}
 			}
 		}
 	}

Telegram/SourceFiles/history/history_unread_things.cpp

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "history/history_unread_things.h"
 
+#include "data/data_saved_sublist.h"
 #include "data/data_session.h"
 #include "data/data_changes.h"
 #include "data/data_channel.h"
@@ -38,6 +39,12 @@ template <typename Update>
 	return UpdateFlag<Data::TopicUpdate>(type);
 }
 
+[[nodiscard]] Data::SublistUpdate::Flag SublistUpdateFlag(Type type) {
+	Expects(type == Type::Reactions);
+
+	return Data::SublistUpdate::Flag::UnreadReactions;
+}
+
 } // namespace
 
 void Proxy::setCount(int count) {
@@ -224,6 +231,10 @@ void Proxy::notifyUpdated() {
 		topic->session().changes().topicUpdated(
 			topic,
 			TopicUpdateFlag(_type));
+	} else if (const auto sublist = _thread->asSublist()) {
+		sublist->session().changes().sublistUpdated(
+			sublist,
+			SublistUpdateFlag(_type));
 	}
 }
 

Telegram/SourceFiles/history/view/history_view_chat_preview.cpp

@@ -366,8 +366,9 @@ void Item::setupTop() {
 		? nullptr
 		: Ui::CreateChild<Ui::UserpicButton>(
 			_top.get(),
-			_thread->peer(),
-			st::previewUserpic);
+			_thread->peer()->userpicPaintingPeer(),
+			st::previewUserpic,
+			_thread->peer()->userpicForceForumShape());
 	if (userpic) {
 		userpic->showSavedMessagesOnSelf(true);
 		userpic->setAttribute(Qt::WA_TransparentForMouseEvents);

Telegram/SourceFiles/history/view/history_view_chat_section.cpp

@@ -47,6 +47,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/delete_messages_box.h"
 #include "boxes/send_files_box.h"
 #include "boxes/premium_limits_box.h"
+#include "window/window_controller.h"
 #include "window/window_session_controller.h"
 #include "window/window_peer_menu.h"
 #include "base/call_delayed.h"
@@ -58,6 +59,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "main/main_session.h"
 #include "main/main_session_settings.h"
 #include "data/components/scheduled_messages.h"
+#include "data/data_histories.h"
 #include "data/data_saved_messages.h"
 #include "data/data_saved_sublist.h"
 #include "data/data_session.h"
@@ -619,9 +621,7 @@ void ChatWidget::subscribeToTopic() {
 
 	_topic->destroyed(
 	) | rpl::start_with_next([=] {
-		controller()->showBackFromStack(Window::SectionShow(
-			anim::type::normal,
-			anim::activation::background));
+		closeCurrent();
 	}, _topicLifetime);
 
 	if (!_topic->creating()) {
@@ -635,6 +635,17 @@ void ChatWidget::subscribeToTopic() {
 	_cornerButtons.updateUnreadThingsVisibility();
 }
 
+void ChatWidget::closeCurrent() {
+	const auto thread = controller()->windowId().chat();
+	if ((_sublist && thread == _sublist) || (_topic && thread == _topic)) {
+		controller()->window().close();
+	} else {
+		controller()->showBackFromStack(Window::SectionShow(
+			anim::type::normal,
+			anim::activation::background));
+	}
+}
+
 void ChatWidget::subscribeToPinnedMessages() {
 	using EntryUpdateFlag = Data::EntryUpdate::Flag;
 	session().changes().entryUpdates(
@@ -2496,9 +2507,7 @@ void ChatWidget::setReplies(std::shared_ptr<Data::RepliesList> replies) {
 		refreshUnreadCountBadge(count);
 	}, lifetime());
 
-	refreshUnreadCountBadge(_replies->unreadCountKnown()
-		? _replies->unreadCountCurrent()
-		: std::optional<int>());
+	unreadCountUpdated();
 
 	const auto isTopic = (_topic != nullptr);
 	const auto isTopicCreating = isTopic && _topic->creating();
@@ -2533,14 +2542,62 @@ void ChatWidget::setReplies(std::shared_ptr<Data::RepliesList> replies) {
 void ChatWidget::subscribeToSublist() {
 	Expects(_sublist != nullptr);
 
+	// Must be done before unreadCountUpdated(), or we auto-close.
+	if (_sublist->unreadMark()) {
+		_sublist->owner().histories().changeSublistUnreadMark(
+			_sublist,
+			false);
+	}
+
 	_sublist->unreadCountValue(
 	) | rpl::start_with_next([=](std::optional<int> count) {
 		refreshUnreadCountBadge(count);
 	}, lifetime());
 
-	refreshUnreadCountBadge(_sublist->unreadCountKnown()
-		? _sublist->unreadCountCurrent()
-		: std::optional<int>());
+	using Flag = Data::SublistUpdate::Flag;
+	session().changes().sublistUpdates(
+		_sublist,
+		Flag::UnreadView | Flag::UnreadReactions | Flag::CloudDraft
+	) | rpl::start_with_next([=](const Data::SublistUpdate &update) {
+		if (update.flags & Flag::UnreadView) {
+			unreadCountUpdated();
+		}
+		if (update.flags & Flag::UnreadReactions) {
+			_cornerButtons.updateUnreadThingsVisibility();
+		}
+		if (update.flags & Flag::CloudDraft) {
+			_composeControls->applyCloudDraft();
+		}
+	}, lifetime());
+
+	_sublist->destroyed(
+	) | rpl::start_with_next([=] {
+		closeCurrent();
+	}, lifetime());
+
+	unreadCountUpdated();
+}
+
+void ChatWidget::unreadCountUpdated() {
+	if (_sublist && _sublist->unreadMark()) {
+		crl::on_main(this, [=] {
+			const auto guard = Ui::MakeWeak(this);
+			controller()->showPeerHistory(_sublist->owningHistory());
+			if (guard) {
+				closeCurrent();
+			}
+		});
+	} else {
+		refreshUnreadCountBadge(_replies
+			? (_replies->unreadCountKnown()
+				? _replies->unreadCountCurrent()
+				: std::optional<int>())
+			: _sublist
+			? (_sublist->unreadCountKnown()
+				? _sublist->unreadCountCurrent()
+				: std::optional<int>())
+			: std::optional<int>());
+	}
 }
 
 void ChatWidget::restoreState(not_null<ChatMemento*> memento) {

Telegram/SourceFiles/history/view/history_view_chat_section.h

@@ -241,6 +241,8 @@ private:
 		int limitAfter);
 
 	void onScroll();
+	void closeCurrent();
+	void unreadCountUpdated();
 	void updateInnerVisibleArea();
 	void updateControlsGeometry();
 	void updateAdaptiveLayout();

Telegram/SourceFiles/history/view/history_view_subsection_tabs.cpp

@@ -590,9 +590,12 @@ void SubsectionTabs::refreshSlice() {
 	});
 	const auto push = [&](not_null<Data::Thread*> thread) {
 		const auto topic = thread->asTopic();
+		const auto sublist = thread->asSublist();
 		slice.push_back({
 			.thread = thread,
-			.badges = thread->chatListBadgesState(),
+			.badges = ((topic || sublist)
+				? thread->chatListBadgesState()
+				: Dialogs::BadgesState()),
 			.iconId = topic ? topic->iconId() : DocumentId(),
 			.name = thread->chatListName(),
 		});

Telegram/SourceFiles/history/view/history_view_top_bar_widget.cpp

@@ -940,7 +940,7 @@ void TopBarWidget::refreshInfoButton() {
 			Ui::UserpicButton::Role::Custom,
 			Ui::UserpicButton::Source::PeerPhoto,
 			st::topBarInfoButton,
-			infoPeer->monoforumBroadcast() != nullptr);
+			infoPeer->userpicForceForumShape());
 		info->showSavedMessagesOnSelf(true);
 		_info.destroy();
 		_info = std::move(info);

Telegram/SourceFiles/info/profile/info_profile_cover.cpp

@@ -632,7 +632,7 @@ Cover::Cover(
 		Ui::UserpicButton::Role::OpenPhoto,
 		Ui::UserpicButton::Source::PeerPhoto,
 		_st.photo,
-		_peer->monoforumBroadcast() != nullptr))
+		_peer->userpicForceForumShape()))
 , _changePersonal((role == Role::Info
 	|| topic
 	|| !_peer->isUser()

Telegram/SourceFiles/ui/controls/userpic_button.cpp

@@ -202,10 +202,12 @@ UserpicButton::UserpicButton(
 UserpicButton::UserpicButton(
 	QWidget *parent,
 	not_null<PeerData*> peer,
-	const style::UserpicButton &st)
+	const style::UserpicButton &st,
+	bool forceForumShape)
 : RippleButton(parent, st.changeButton.ripple)
 , _st(st)
 , _peer(peer)
+, _forceForumShape(forceForumShape)
 , _role(Role::Custom)
 , _source(Source::PeerPhoto) {
 	Expects(_role != Role::OpenPhoto);

Telegram/SourceFiles/ui/controls/userpic_button.h

@@ -74,7 +74,8 @@ public:
 	UserpicButton(
 		QWidget *parent,
 		not_null<PeerData*> peer, // Role::Custom, Source::PeerPhoto
-		const style::UserpicButton &st);
+		const style::UserpicButton &st,
+		bool forceForumShape = false);
 	~UserpicButton();
 
 	enum class ChosenType {

Telegram/SourceFiles/window/window_peer_menu.cpp

@@ -499,6 +499,8 @@ void Filler::addTogglePin() {
 		&& !_sublist
 		&& !_topic) {
 		return;
+	} else if (_sublist && !_peer->isSelf()) {
+		return;
 	}
 	const auto controller = _controller;
 	const auto filterId = _request.filterId;
@@ -526,7 +528,7 @@ void Filler::addTogglePin() {
 }
 
 void Filler::addToggleMuteSubmenu(bool addSeparator) {
-	if (!_thread || _thread->peer()->isSelf()) {
+	if (!_thread || _thread->peer()->isSelf() || _thread->asSublist()) {
 		return;
 	}
 	PeerMenuAddMuteSubmenuAction(_controller, _thread, _addAction);
@@ -550,16 +552,18 @@ void Filler::addSupportInfo() {
 }
 
 void Filler::addInfo() {
-	if (_peer
-		&& (_peer->isSelf()
-			|| _peer->isRepliesChat()
-			|| _peer->isVerifyCodes())) {
+	const auto sublist = _thread ? _thread->asSublist() : nullptr;
+	const auto infoPeer = sublist ? sublist->sublistPeer().get() : _peer;
+	if (infoPeer
+		&& (infoPeer->isSelf()
+			|| infoPeer->isRepliesChat()
+			|| infoPeer->isVerifyCodes())) {
 		return;
 	} else if (!_thread) {
 		return;
 	} else if (_controller->adaptive().isThreeColumn()) {
 		const auto thread = _controller->activeChatCurrent().thread();
-		if (thread && thread == _thread) {
+		if (thread && !thread->asSublist() && thread == _thread) {
 			if (Core::App().settings().thirdSectionInfoEnabled()
 				|| Core::App().settings().tabbedReplacedWithInfo()) {
 				return;
@@ -570,16 +574,16 @@ void Filler::addInfo() {
 	const auto weak = base::make_weak(_thread);
 	const auto text = _thread->asTopic()
 		? tr::lng_context_view_topic(tr::now)
-		: (_peer->isChat() || _peer->isMegagroup())
+		: (infoPeer->isChat() || infoPeer->isMegagroup())
 		? tr::lng_context_view_group(tr::now)
-		: _peer->isUser()
+		: infoPeer->isUser()
 		? tr::lng_context_view_profile(tr::now)
 		: tr::lng_context_view_channel(tr::now);
 	_addAction(text, [=] {
 		if (const auto strong = weak.get()) {
 			controller->showPeerInfo(strong);
 		}
-	}, _peer->isUser() ? &st::menuIconProfile : &st::menuIconInfo);
+	}, infoPeer->isUser() ? &st::menuIconProfile : &st::menuIconInfo);
 }
 
 void Filler::addStoryArchive() {
@@ -624,12 +628,9 @@ void Filler::addToggleFolder() {
 
 void Filler::addToggleUnreadMark() {
 	const auto peer = _peer;
-	const auto history = _request.key.history();
-	if (!_thread) {
-		return;
-	}
 	const auto unread = IsUnreadThread(_thread);
-	if ((_thread->asTopic() || peer->isForum()) && !unread) {
+	const auto history = _request.key.history();
+	if (!_thread || !_thread->canToggleUnread(unread)) {
 		return;
 	}
 	const auto weak = base::make_weak(_thread);
@@ -643,6 +644,8 @@ void Filler::addToggleUnreadMark() {
 		}
 		if (unread) {
 			MarkAsReadThread(thread);
+		} else if (const auto sublist = thread->asSublist()) {
+			peer->owner().histories().changeSublistUnreadMark(sublist, true);
 		} else if (history) {
 			peer->owner().histories().changeDialogUnreadMark(history, true);
 		}
@@ -751,14 +754,16 @@ void Filler::addClearHistory() {
 }
 
 void Filler::addDeleteChat() {
-	if (_topic || _peer->isChannel()) {
+	if (_topic || (!_sublist && _peer->isChannel())) {
 		return;
 	}
 	_addAction({
-		.text = (_peer->isUser()
+		.text = ((_peer->isUser() || _sublist)
 			? tr::lng_profile_delete_conversation(tr::now)
 			: tr::lng_profile_clear_and_exit(tr::now)),
-		.handler = DeleteAndLeaveHandler(_controller, _peer),
+		.handler = (_sublist
+			? DeleteSublistHandler(_controller, _sublist)
+			: DeleteAndLeaveHandler(_controller, _peer)),
 		.icon = &st::menuIconDeleteAttention,
 		.isAttention = true,
 	});
@@ -766,7 +771,7 @@ void Filler::addDeleteChat() {
 
 void Filler::addLeaveChat() {
 	const auto channel = _peer->asChannel();
-	if (_topic || !channel || !channel->amIn()) {
+	if (_topic || _sublist || !channel || !channel->amIn()) {
 		return;
 	}
 	_addAction({
@@ -1263,7 +1268,7 @@ void Filler::addSendGift() {
 void Filler::fill() {
 	if (_folder) {
 		fillArchiveActions();
-	} else if (_sublist) {
+	} else if (_sublist && _peer->isSelf()) {
 		fillSavedSublistActions();
 	} else switch (_request.section) {
 	case Section::ChatsList: fillChatsListActions(); break;
@@ -3232,6 +3237,19 @@ Fn<void()> DeleteAndLeaveHandler(
 	};
 }
 
+Fn<void()> DeleteSublistHandler(
+		not_null<Window::SessionController*> controller,
+		not_null<Data::SavedSublist*> sublist) {
+	const auto weak = base::make_weak(sublist.get());
+	return [=] {
+		if (const auto strong = weak.get()) {
+			if (!controller->showFrozenError()) {
+				controller->show(Box(DeleteSublistBox, strong));
+			}
+		}
+	};
+}
+
 void FillDialogsEntryMenu(
 		not_null<SessionController*> controller,
 		Dialogs::EntryState request,
@@ -3345,8 +3363,7 @@ void MarkAsReadThread(not_null<Data::Thread*> thread) {
 	if (!IsUnreadThread(thread)) {
 		return;
 	} else if (const auto forum = thread->asForum()) {
-		forum->enumerateTopics([](
-			not_null<Data::ForumTopic*> topic) {
+		forum->enumerateTopics([](not_null<Data::ForumTopic*> topic) {
 			MarkAsReadThread(topic);
 		});
 	} else if (const auto history = thread->asHistory()) {
@@ -3356,6 +3373,8 @@ void MarkAsReadThread(not_null<Data::Thread*> thread) {
 		}
 	} else if (const auto topic = thread->asTopic()) {
 		topic->readTillEnd();
+	} else if (const auto sublist = thread->asSublist()) {
+		sublist->readTillEnd();
 	}
 }
 

Telegram/SourceFiles/window/window_peer_menu.h

@@ -148,6 +148,9 @@ Fn<void()> ClearHistoryHandler(
 Fn<void()> DeleteAndLeaveHandler(
 	not_null<Window::SessionController*> controller,
 	not_null<PeerData*> peer);
+Fn<void()> DeleteSublistHandler(
+	not_null<Window::SessionController*> controller,
+	not_null<Data::SavedSublist*> sublist);
 
 object_ptr<Ui::BoxContent> PrepareChooseRecipientBox(
 	not_null<Main::Session*> session,

Telegram/SourceFiles/window/window_session_controller.cpp

@@ -1309,6 +1309,9 @@ void SessionNavigation::showPeerInfo(
 		const SectionShow &params) {
 	if (const auto topic = thread->asTopic()) {
 		showSection(std::make_shared<Info::Memento>(topic), params);
+	} else if (const auto sublist = thread->asSublist()
+		; sublist && sublist->parentChat()) {
+		showPeerInfo(sublist->sublistPeer()->id, params);
 	} else {
 		showPeerInfo(thread->peer()->id, params);
 	}