Show admins in participants_hidden group info.

Telegram/SourceFiles/api/api_chat_participants.cpp

@@ -365,6 +365,7 @@ void ChatParticipants::requestForAdd(
 
 void ChatParticipants::requestLast(not_null<ChannelData*> channel) {
 	if (!channel->isMegagroup()
+		|| !channel->canViewMembers()
 		|| _participantsRequests.contains(channel)) {
 		return;
 	}
@@ -532,6 +533,7 @@ ChatParticipants::Parsed ChatParticipants::ParseRecent(
 		const TLMembers &data) {
 	const auto result = Parse(channel, data);
 	const auto applyLast = channel->isMegagroup()
+		&& channel->canViewMembers()
 		&& (channel->mgInfo->lastParticipants.size() <= result.list.size());
 	if (applyLast) {
 		ApplyLastList(channel, result.availableCount, result.list);

Telegram/SourceFiles/api/api_updates.cpp

@@ -1513,7 +1513,8 @@ void Updates::feedUpdate(const MTPUpdate &update) {
 			// Request last active supergroup participants if the 'from' user was not loaded yet.
 			// This will optimize similar getDifference() calls for almost all next messages.
 			if (isDataLoaded == DataIsLoadedResult::FromNotLoaded && channel && channel->isMegagroup()) {
-				if (channel->mgInfo->lastParticipants.size() < _session->serverConfig().chatSizeMax
+				if (channel->canViewMembers()
+					&& channel->mgInfo->lastParticipants.size() < _session->serverConfig().chatSizeMax
 					&& (channel->mgInfo->lastParticipants.empty()
 						|| channel->mgInfo->lastParticipants.size() < channel->membersCount())) {
 					session().api().chatParticipants().requestLast(channel);

Telegram/SourceFiles/boxes/peer_list_box.cpp

@@ -363,10 +363,6 @@ void PeerListController::peerListSearchRefreshRows() {
 	delegate()->peerListRefreshRows();
 }
 
-rpl::producer<int> PeerListController::onlineCountValue() const {
-	return rpl::single(0);
-}
-
 void PeerListController::setDescriptionText(const QString &text) {
 	if (text.isEmpty()) {
 		setDescription(nullptr);

Telegram/SourceFiles/boxes/peer_list_box.h

@@ -529,8 +529,6 @@ public:
 		Unexpected("PeerListController::customRowRippleMaskGenerator.");
 	}
 
-	[[nodiscard]] virtual rpl::producer<int> onlineCountValue() const;
-
 	[[nodiscard]] rpl::lifetime &lifetime() {
 		return _lifetime;
 	}

Telegram/SourceFiles/boxes/peers/add_participants_box.cpp

@@ -46,7 +46,7 @@ base::flat_set<not_null<UserData*>> GetAlreadyInFromPeer(PeerData *peer) {
 	if (const auto chat = peer->asChat()) {
 		return chat->participants;
 	} else if (const auto channel = peer->asChannel()) {
-		if (channel->isMegagroup()) {
+		if (channel->isMegagroup() && channel->canViewMembers()) {
 			const auto &participants = channel->mgInfo->lastParticipants;
 			return { participants.cbegin(), participants.cend() };
 		}
@@ -140,6 +140,7 @@ bool AddParticipantsBoxController::isAlreadyIn(
 	} else if (const auto channel = _peer->asChannel()) {
 		return _alreadyIn.contains(user)
 			|| (channel->isMegagroup()
+				&& channel->canViewMembers()
 				&& base::contains(channel->mgInfo->lastParticipants, user));
 	}
 	Unexpected("User in AddParticipantsBoxController::isAlreadyIn");

Telegram/SourceFiles/boxes/peers/edit_participants_box.cpp

@@ -501,7 +501,7 @@ void ParticipantsAdditionalData::fillFromChat(not_null<ChatData*> chat) {
 void ParticipantsAdditionalData::fillFromChannel(
 		not_null<ChannelData*> channel) {
 	const auto information = channel->mgInfo.get();
-	if (!information) {
+	if (!information || !channel->canViewMembers()) {
 		return;
 	}
 	if (information->creator) {
@@ -901,7 +901,7 @@ void ParticipantsBoxController::setupListChangeViewers() {
 			});
 		} else if (auto row = createRow(user)) {
 			delegate()->peerListPrependRow(std::move(row));
-			delegate()->peerListRefreshRows();
+			refreshRows();
 			if (_onlineSorter) {
 				_onlineSorter->sort();
 			}
@@ -914,7 +914,7 @@ void ParticipantsBoxController::setupListChangeViewers() {
 		if (const auto row = delegate()->peerListFindRow(user->id.value)) {
 			delegate()->peerListRemoveRow(row);
 		}
-		delegate()->peerListRefreshRows();
+		refreshRows();
 	}, lifetime());
 }
 
@@ -1170,9 +1170,11 @@ void ParticipantsBoxController::restoreState(
 }
 
 rpl::producer<int> ParticipantsBoxController::onlineCountValue() const {
-	return _onlineSorter
-		? _onlineSorter->onlineCountValue()
-		: rpl::single(0);
+	return _onlineCountValue.value();
+}
+
+rpl::producer<int> ParticipantsBoxController::fullCountValue() const {
+	return _fullCountValue.value();
 }
 
 void ParticipantsBoxController::prepare() {
@@ -1205,17 +1207,48 @@ void ParticipantsBoxController::prepare() {
 	setDescriptionText(tr::lng_contacts_loading(tr::now));
 	setSearchNoResultsText(tr::lng_blocked_list_not_found(tr::now));
 
+	if (_role == Role::Profile) {
+		auto visible = _peer->isMegagroup()
+			? Info::Profile::CanViewParticipantsValue(_peer->asMegagroup())
+			: rpl::single(true);
+		std::move(visible) | rpl::start_with_next([=](bool visible) {
+			if (!visible) {
+				_onlineCountValue = 0;
+				_onlineSorter = nullptr;
+			} else if (!_onlineSorter) {
+				_onlineSorter = std::make_unique<ParticipantsOnlineSorter>(
+					_peer,
+					delegate());
+				_onlineCountValue = _onlineSorter->onlineCountValue();
+			}
+			unload();
+			rebuild();
+		}, lifetime());
+	} else {
+		rebuild();
+	}
+}
+
+void ParticipantsBoxController::unload() {
+	while (delegate()->peerListFullRowsCount() > 0) {
+		delegate()->peerListRemoveRow(
+			delegate()->peerListRowAt(
+				delegate()->peerListFullRowsCount() - 1));
+	}
+	if (const auto requestId = base::take(_loadRequestId)) {
+		_api.request(requestId).cancel();
+	}
+	_allLoaded = false;
+	_offset = 0;
+}
+
+void ParticipantsBoxController::rebuild() {
 	if (const auto chat = _peer->asChat()) {
 		prepareChatRows(chat);
 	} else {
 		loadMoreRows();
 	}
-	if (_role == Role::Profile && !_onlineSorter) {
-		_onlineSorter = std::make_unique<ParticipantsOnlineSorter>(
-			_peer,
-			delegate());
-	}
-	delegate()->peerListRefreshRows();
+	refreshRows();
 }
 
 QPointer<Ui::BoxContent> ParticipantsBoxController::showBox(
@@ -1291,7 +1324,7 @@ void ParticipantsBoxController::rebuildChatParticipants(
 	}
 	_onlineSorter->sort();
 
-	delegate()->peerListRefreshRows();
+	refreshRows();
 	chatListReady();
 }
 
@@ -1344,7 +1377,7 @@ void ParticipantsBoxController::rebuildChatAdmins(
 		}
 	}
 
-	delegate()->peerListRefreshRows();
+	refreshRows();
 	chatListReady();
 }
 
@@ -1366,7 +1399,7 @@ void ParticipantsBoxController::rebuildRowTypes() {
 			delegate()->peerListRowAt(i).get());
 		row->setType(computeType(row->user()));
 	}
-	delegate()->peerListRefreshRows();
+	refreshRows();
 }
 
 void ParticipantsBoxController::loadMoreRows() {
@@ -1405,11 +1438,13 @@ void ParticipantsBoxController::loadMoreRows() {
 		MTP_int(perPage),
 		MTP_long(participantsHash)
 	)).done([=](const MTPchannels_ChannelParticipants &result) {
+		auto added = false;
 		const auto firstLoad = !_offset;
 		_loadRequestId = 0;
 
 		auto wasRecentRequest = firstLoad
-			&& (_role == Role::Members || _role == Role::Profile);
+			&& (_role == Role::Members || _role == Role::Profile)
+			&& channel->canViewMembers();
 
 		result.match([&](const MTPDchannels_channelParticipants &data) {
 			const auto &[availableCount, list] = wasRecentRequest
@@ -1418,7 +1453,9 @@ void ParticipantsBoxController::loadMoreRows() {
 			for (const auto &data : list) {
 				if (const auto participant = _additional.applyParticipant(
 						data)) {
-					appendRow(participant);
+					if (appendRow(participant)) {
+						added = true;
+					}
 				}
 			}
 			if (const auto size = list.size()) {
@@ -1431,7 +1468,9 @@ void ParticipantsBoxController::loadMoreRows() {
 			LOG(("API Error: "
 				"channels.channelParticipantsNotModified received!"));
 		});
-
+		if (!firstLoad && !added) {
+			_allLoaded = true;
+		}
 		if (_allLoaded
 			|| (firstLoad && delegate()->peerListFullRowsCount() > 0)) {
 			refreshDescription();
@@ -1439,7 +1478,7 @@ void ParticipantsBoxController::loadMoreRows() {
 		if (_onlineSorter) {
 			_onlineSorter->sort();
 		}
-		delegate()->peerListRefreshRows();
+		refreshRows();
 	}).fail([this] {
 		_loadRequestId = 0;
 	}).send();
@@ -1461,7 +1500,7 @@ bool ParticipantsBoxController::feedMegagroupLastParticipants() {
 		return false;
 	}
 	const auto megagroup = _peer->asMegagroup();
-	if (!megagroup) {
+	if (!megagroup || !megagroup->canViewMembers()) {
 		return false;
 	}
 	const auto info = megagroup->mgInfo.get();
@@ -1663,7 +1702,7 @@ void ParticipantsBoxController::editAdminDone(
 		}
 	}
 	recomputeTypeFor(user);
-	delegate()->peerListRefreshRows();
+	refreshRows();
 }
 
 void ParticipantsBoxController::showRestricted(not_null<UserData*> user) {
@@ -1727,7 +1766,7 @@ void ParticipantsBoxController::editRestrictedDone(
 		}
 	}
 	recomputeTypeFor(participant);
-	delegate()->peerListRefreshRows();
+	refreshRows();
 }
 
 void ParticipantsBoxController::kickParticipant(not_null<PeerData*> participant) {
@@ -1752,7 +1791,7 @@ void ParticipantsBoxController::unkickParticipant(not_null<UserData*> user) {
 	_editBox = nullptr;
 	if (const auto row = delegate()->peerListFindRow(user->id.value)) {
 		delegate()->peerListRemoveRow(row);
-		delegate()->peerListRefreshRows();
+		refreshRows();
 	}
 	_peer->session().api().chatParticipants().add(_peer, { 1, user });
 }
@@ -1768,7 +1807,7 @@ void ParticipantsBoxController::kickParticipantSure(
 
 	if (const auto row = delegate()->peerListFindRow(participant->id.value)) {
 		delegate()->peerListRemoveRow(row);
-		delegate()->peerListRefreshRows();
+		refreshRows();
 	}
 	auto &session = _peer->session();
 	if (const auto chat = _peer->asChat()) {
@@ -1842,7 +1881,7 @@ void ParticipantsBoxController::removeKicked(
 		&& !delegate()->peerListFullRowsCount()) {
 		setDescriptionText(tr::lng_blocked_list_not_found(tr::now));
 	}
-	delegate()->peerListRefreshRows();
+	refreshRows();
 	removeKicked(participant);
 }
 
@@ -2059,6 +2098,11 @@ void ParticipantsBoxController::fullListRefresh() {
 			delegate()->peerListRowAt(count - 1));
 	}
 	loadMoreRows();
+	refreshRows();
+}
+
+void ParticipantsBoxController::refreshRows() {
+	_fullCountValue = delegate()->peerListFullRowsCount();
 	delegate()->peerListRefreshRows();
 }
 

Telegram/SourceFiles/boxes/peers/edit_participants_box.h

@@ -184,7 +184,8 @@ public:
 	std::unique_ptr<PeerListState> saveState() const override;
 	void restoreState(std::unique_ptr<PeerListState> state) override;
 
-	rpl::producer<int> onlineCountValue() const override;
+	[[nodiscard]] rpl::producer<int> onlineCountValue() const;
+	[[nodiscard]] rpl::producer<int> fullCountValue() const;
 
 protected:
 	// Allow child controllers not providing navigation.
@@ -229,6 +230,8 @@ private:
 	void rebuildChatAdmins(not_null<ChatData*> chat);
 	void chatListReady();
 	void rebuildRowTypes();
+	void rebuild();
+	void unload();
 
 	void addNewItem();
 	void addNewParticipants();
@@ -266,6 +269,7 @@ private:
 	void migrate(not_null<ChatData*> chat, not_null<ChannelData*> channel);
 	void subscribeToCreatorChange(not_null<ChannelData*> channel);
 	void fullListRefresh();
+	void refreshRows();
 
 	// It may be nullptr in subclasses of this controller.
 	Window::SessionNavigation *_navigation = nullptr;
@@ -278,6 +282,8 @@ private:
 	bool _allLoaded = false;
 	ParticipantsAdditionalData _additional;
 	std::unique_ptr<ParticipantsOnlineSorter> _onlineSorter;
+	rpl::variable<int> _onlineCountValue;
+	rpl::variable<int> _fullCountValue;
 	Ui::BoxPointer _editBox;
 	Ui::BoxPointer _addBox;
 	QPointer<Ui::BoxContent> _editParticipantBox;

Telegram/SourceFiles/chat_helpers/field_autocomplete.cpp

@@ -472,7 +472,9 @@ void FieldAutocomplete::updateFiltered(bool resetScroll) {
 				--i;
 				mrows.push_back({ i->second });
 			}
-		} else if (_channel && _channel->isMegagroup()) {
+		} else if (_channel
+			&& _channel->isMegagroup()
+			&& _channel->canViewMembers()) {
 			if (_channel->lastParticipantsRequestNeeded()) {
 				_channel->session().api().chatParticipants().requestLast(
 					_channel);

Telegram/SourceFiles/data/data_channel.cpp

@@ -263,8 +263,11 @@ bool ChannelData::linkedChatKnown() const {
 
 void ChannelData::setMembersCount(int newMembersCount) {
 	if (_membersCount != newMembersCount) {
-		if (isMegagroup() && !mgInfo->lastParticipants.empty()) {
-			mgInfo->lastParticipantsStatus |= MegagroupInfo::LastParticipantsCountOutdated;
+		if (isMegagroup()
+			&& canViewMembers()
+			&& !mgInfo->lastParticipants.empty()) {
+			mgInfo->lastParticipantsStatus
+				|= MegagroupInfo::LastParticipantsCountOutdated;
 			mgInfo->lastParticipantsCount = membersCount();
 		}
 		_membersCount = newMembersCount;
@@ -485,7 +488,7 @@ bool ChannelData::isGroupAdmin(not_null<UserData*> user) const {
 }
 
 bool ChannelData::lastParticipantsRequestNeeded() const {
-	if (!mgInfo) {
+	if (!mgInfo || !canViewMembers()) {
 		return false;
 	} else if (mgInfo->lastParticipantsCount == membersCount()) {
 		mgInfo->lastParticipantsStatus

Telegram/SourceFiles/history/history.cpp

@@ -879,7 +879,9 @@ not_null<HistoryItem*> History::addNewToBack(
 				if (auto chat = peer->asChat()) {
 					return &chat->lastAuthors;
 				} else if (auto channel = peer->asMegagroup()) {
-					return &channel->mgInfo->lastParticipants;
+					return channel->canViewMembers()
+						? &channel->mgInfo->lastParticipants
+						: nullptr;
 				}
 				return nullptr;
 			};
@@ -998,7 +1000,8 @@ void History::applyServiceChanges(
 			not_null<ChannelData*> megagroup,
 			not_null<MegagroupInfo*> mgInfo,
 			not_null<UserData*> user) {
-		if (!base::contains(mgInfo->lastParticipants, user)) {
+		if (!base::contains(mgInfo->lastParticipants, user)
+			&& megagroup->canViewMembers()) {
 			mgInfo->lastParticipants.push_front(user);
 			session().changes().peerUpdated(
 				peer,

Telegram/SourceFiles/history/view/history_view_top_bar_widget.cpp

@@ -1504,9 +1504,10 @@ bool TopBarWidget::trackOnlineOf(not_null<PeerData*> user) const {
 	} else if (const auto chat = peer->asChat()) {
 		return chat->participants.contains(user->asUser());
 	} else if (const auto channel = peer->asMegagroup()) {
-		return ranges::contains(
-			channel->mgInfo->lastParticipants,
-			not_null{ user->asUser() });
+		return channel->canViewMembers()
+			&& ranges::contains(
+				channel->mgInfo->lastParticipants,
+				not_null{ user->asUser() });
 	}
 	return false;
 }
@@ -1562,6 +1563,7 @@ void TopBarWidget::updateOnlineDisplay() {
 		}
 	} else if (const auto channel = peer->asChannel()) {
 		if (channel->isMegagroup()
+			&& channel->canViewMembers()
 			&& (channel->membersCount() > 0)
 			&& (channel->membersCount()
 				<= channel->session().serverConfig().chatSizeMax)) {

Telegram/SourceFiles/info/profile/info_profile_actions.cpp

@@ -932,9 +932,7 @@ void ActionsFiller::addLeaveChannelAction(not_null<ChannelData*> channel) {
 
 	AddActionButton(
 		_wrap,
-		(channel->isMegagroup()
-			? tr::lng_profile_leave_group()
-			: tr::lng_profile_leave_channel()),
+		tr::lng_profile_leave_channel(),
 		AmInChannelValue(channel),
 		Window::DeleteAndLeaveHandler(
 			_controller->parentController(),
@@ -950,9 +948,7 @@ void ActionsFiller::addJoinChannelAction(
 		| rpl::start_spawning(_wrap->lifetime());
 	AddActionButton(
 		_wrap,
-		(channel->isMegagroup()
-			? tr::lng_profile_join_group()
-			: tr::lng_profile_join_channel()),
+		tr::lng_profile_join_channel(),
 		rpl::duplicate(joinVisible),
 		[=] { channel->session().api().joinChannel(channel); },
 		&st::infoIconAddMember);
@@ -1003,14 +999,7 @@ void ActionsFiller::fillChannelActions(
 }
 
 object_ptr<Ui::RpWidget> ActionsFiller::fill() {
-	const auto wrapToggled = [=](
-			object_ptr<Ui::RpWidget> content,
-			rpl::producer<bool> shown) {
-		auto result = object_ptr<Ui::SlideWrap<>>(_parent, std::move(content));
-		result->setDuration(0)->toggleOn(std::move(shown));
-		return result;
-	};
-	const auto wrapResult = [=](auto &&callback) {
+	auto wrapResult = [=](auto &&callback) {
 		_wrap = object_ptr<Ui::VerticalLayout>(_parent);
 		_wrap->add(CreateSkipWidget(_wrap));
 		callback();
@@ -1022,11 +1011,8 @@ object_ptr<Ui::RpWidget> ActionsFiller::fill() {
 			fillUserActions(user);
 		});
 	} else if (auto channel = _peer->asChannel()) {
-		if (const auto megagroup = channel->asMegagroup()) {
-			using namespace rpl::mappers;
-			return wrapToggled(wrapResult([=] {
-				fillChannelActions(megagroup);
-			}), CanViewParticipantsValue(megagroup) | rpl::map(!_1));
+		if (channel->isMegagroup()) {
+			return { nullptr };
 		}
 		return wrapResult([=] {
 			fillChannelActions(channel);

Telegram/SourceFiles/info/profile/info_profile_inner_widget.cpp

@@ -113,32 +113,23 @@ object_ptr<Ui::RpWidget> InnerWidget::setupContent(
 	if (auto members = SetupChannelMembers(_controller, result.data(), _peer)) {
 		result->add(std::move(members));
 	}
-	result->add(object_ptr<Ui::BoxContentDivider>(result));
 	if (auto actions = SetupActions(_controller, result.data(), _peer)) {
+		result->add(object_ptr<Ui::BoxContentDivider>(result));
 		result->add(std::move(actions));
 	}
-
-	if (_peer->isChat()) {
+	if (_peer->isChat() || _peer->isMegagroup()) {
 		setupMembers(result.data());
-	} else if (const auto megagroup = _peer->asMegagroup()) {
-		CanViewParticipantsValue(
-			megagroup
-		) | rpl::start_with_next([=, raw = result.data()](bool can) {
-			if (can) {
-				setupMembers(raw);
-			} else {
-				_cover->setOnlineCount(rpl::single(0));
-				delete base::take(_members);
-			}
-		}, lifetime());
 	}
 	return result;
 }
 
 void InnerWidget::setupMembers(not_null<Ui::VerticalLayout*> container) {
-	_members = container->add(object_ptr<Members>(
+	auto wrap = container->add(object_ptr<Ui::SlideWrap<Ui::VerticalLayout>>(
 		container,
-		_controller));
+		object_ptr<Ui::VerticalLayout>(container)));
+	const auto inner = wrap->entity();
+	inner->add(object_ptr<Ui::BoxContentDivider>(inner));
+	_members = inner->add(object_ptr<Members>(inner, _controller));
 	_members->scrollToRequests(
 	) | rpl::start_with_next([this](Ui::ScrollToRequest request) {
 		auto min = (request.ymin < 0)
@@ -152,6 +143,11 @@ void InnerWidget::setupMembers(not_null<Ui::VerticalLayout*> container) {
 		_scrollToRequests.fire({ min, max });
 	}, _members->lifetime());
 	_cover->setOnlineCount(_members->onlineCountValue());
+
+	using namespace rpl::mappers;
+	wrap->toggleOn(
+		_members->fullCountValue() | rpl::map(_1 > 0),
+		anim::type::instant);
 }
 
 object_ptr<Ui::RpWidget> InnerWidget::setupSharedMedia(

Telegram/SourceFiles/info/profile/info_profile_members.cpp

@@ -87,6 +87,10 @@ rpl::producer<int> Members::onlineCountValue() const {
 	return _listController->onlineCountValue();
 }
 
+rpl::producer<int> Members::fullCountValue() const {
+	return _listController->fullCountValue();
+}
+
 rpl::producer<Ui::ScrollToRequest> Members::scrollToRequests() const {
 	return _scrollToRequests.events();
 }
@@ -162,13 +166,18 @@ void Members::setupHeader() {
 }
 
 object_ptr<Ui::FlatLabel> Members::setupTitle() {
+	auto visible = _peer->isMegagroup()
+		? CanViewParticipantsValue(_peer->asMegagroup())
+		: rpl::single(true);
 	auto result = object_ptr<Ui::FlatLabel>(
 		_titleWrap,
-		tr::lng_chat_status_members(
-			lt_count_decimal,
-			MembersCountValue(_peer) | tr::to_count(),
-			Ui::Text::Upper
-		),
+		rpl::conditional(
+			std::move(visible),
+			tr::lng_chat_status_members(
+				lt_count_decimal,
+				MembersCountValue(_peer) | tr::to_count(),
+				Ui::Text::Upper),
+			tr::lng_channel_admins(Ui::Text::Upper)),
 		st::infoBlockHeaderLabel);
 	result->setAttribute(Qt::WA_TransparentForMouseEvents);
 	return result;
@@ -184,8 +193,16 @@ void Members::setupButtons() {
 	//_searchField->hide();
 	//_cancelSearch->setVisible(false);
 
-	auto addMemberShown = CanAddMemberValue(_peer)
-		| rpl::start_spawning(lifetime());
+	auto visible = _peer->isMegagroup()
+		? CanViewParticipantsValue(_peer->asMegagroup())
+		: rpl::single(true);
+	rpl::duplicate(visible) | rpl::start_with_next([=](bool visible) {
+		_openMembers->setVisible(visible);
+	}, lifetime());
+
+	auto addMemberShown = CanAddMemberValue(
+		_peer
+	) | rpl::start_spawning(lifetime());
 	_addMember->showOn(rpl::duplicate(addMemberShown));
 	_addMember->addClickHandler([this] { // TODO throttle(ripple duration)
 		this->addMember();
@@ -205,7 +222,8 @@ void Members::setupButtons() {
 
 	rpl::combine(
 		std::move(addMemberShown),
-		std::move(searchShown)
+		std::move(searchShown),
+		std::move(visible)
 	) | rpl::start_with_next([this] {
 		updateHeaderControlsGeometry(width());
 	}, lifetime());

Telegram/SourceFiles/info/profile/info_profile_members.h

@@ -10,6 +10,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/rp_widget.h"
 #include "boxes/peer_list_box.h"
 
+class ParticipantsBoxController;
+
 namespace Ui {
 class InputField;
 class CrossButton;
@@ -50,8 +52,9 @@ public:
 	std::unique_ptr<MembersState> saveState();
 	void restoreState(std::unique_ptr<MembersState> state);
 
-	int desiredHeight() const;
-	rpl::producer<int> onlineCountValue() const;
+	[[nodiscard]] int desiredHeight() const;
+	[[nodiscard]] rpl::producer<int> onlineCountValue() const;
+	[[nodiscard]] rpl::producer<int> fullCountValue() const;
 
 protected:
 	void visibleTopBottomUpdated(
@@ -116,7 +119,7 @@ private:
 	//Wrap _wrap;
 	not_null<Controller*> _controller;
 	not_null<PeerData*> _peer;
-	std::unique_ptr<PeerListController> _listController;
+	std::unique_ptr<ParticipantsBoxController> _listController;
 	object_ptr<Ui::RpWidget> _header = { nullptr };
 	object_ptr<ListWidget> _list = { nullptr };
 

Telegram/SourceFiles/info/profile/info_profile_members_controllers.cpp

@@ -68,7 +68,7 @@ void MemberListRow::refreshStatus() {
 	}
 }
 
-std::unique_ptr<PeerListController> CreateMembersController(
+std::unique_ptr<ParticipantsBoxController> CreateMembersController(
 		not_null<Window::SessionNavigation*> navigation,
 		not_null<PeerData*> peer) {
 	return std::make_unique<ParticipantsBoxController>(

Telegram/SourceFiles/info/profile/info_profile_members_controllers.h

@@ -10,6 +10,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/peer_list_controllers.h"
 #include "ui/unread_badge.h"
 
+class ParticipantsBoxController;
+
 namespace Window {
 class SessionNavigation;
 } // namespace Window
@@ -43,7 +45,7 @@ private:
 
 };
 
-std::unique_ptr<PeerListController> CreateMembersController(
+std::unique_ptr<ParticipantsBoxController> CreateMembersController(
 	not_null<Window::SessionNavigation*> navigation,
 	not_null<PeerData*> peer);