Save recent requester userIds from API.

Telegram/SourceFiles/api/api_updates.cpp

@@ -1970,10 +1970,11 @@ void Updates::feedUpdate(const MTPUpdate &update) {
 		const auto &d = update.c_updatePendingJoinRequests();
 		if (const auto peer = session().data().peerLoaded(peerFromMTP(d.vpeer()))) {
 			const auto count = d.vrequests_pending().v;
+			const auto &requesters = d.vrecent_requesters().v;
 			if (const auto chat = peer->asChat()) {
-				chat->setPendingRequestsCount(count);
+				chat->setPendingRequestsCount(count, requesters);
 			} else if (const auto channel = peer->asChannel()) {
-				channel->setPendingRequestsCount(count);
+				channel->setPendingRequestsCount(count, requesters);
 			}
 		}
 	} break;

Telegram/SourceFiles/data/data_channel.cpp

@@ -195,9 +195,23 @@ void ChannelData::setKickedCount(int newKickedCount) {
 	}
 }
 
-void ChannelData::setPendingRequestsCount(int count) {
+void ChannelData::setPendingRequestsCount(
-	if (_pendingRequestsCount != count) {
+		int count,
+		const QVector<MTPlong> &recentRequesters) {
+	setPendingRequestsCount(count, ranges::views::all(
+		recentRequesters
+	) | ranges::views::transform([&](const MTPlong &value) {
+		return UserId(value);
+	}) | ranges::to_vector);
+}
+
+void ChannelData::setPendingRequestsCount(
+		int count,
+		std::vector<UserId> recentRequesters) {
+	if (_pendingRequestsCount != count
+		|| _recentRequesters != recentRequesters) {
 		_pendingRequestsCount = count;
+		_recentRequesters = std::move(recentRequesters);
 		session().changes().peerUpdated(this, UpdateFlag::PendingRequests);
 	}
 }
@@ -550,7 +564,7 @@ void ChannelData::setAdminRights(ChatAdminRights rights) {
 	}
 	_adminRights.set(rights);
 	if (!canHaveInviteLink()) {
-		setPendingRequestsCount(0);
+		setPendingRequestsCount(0, std::vector<UserId>{});
 	}
 	if (isMegagroup()) {
 		const auto self = session().user();
@@ -885,7 +899,8 @@ void ApplyChannelUpdate(
 	channel->setThemeEmoji(qs(update.vtheme_emoticon().value_or_empty()));
 	channel->fullUpdated();
 	channel->setPendingRequestsCount(
-		update.vrequests_pending().value_or_empty());
+		update.vrequests_pending().value_or_empty(),
+		update.vrecent_requesters().value_or_empty());
 
 	if (canViewAdmins != channel->canViewAdmins()
 		|| canViewMembers != channel->canViewMembers()) {

Telegram/SourceFiles/data/data_channel.h

@@ -180,7 +180,15 @@ public:
 	[[nodiscard]] int pendingRequestsCount() const {
 		return _pendingRequestsCount;
 	}
-	void setPendingRequestsCount(int count);
+	[[nodiscard]] const std::vector<UserId> &recentRequesters() const {
+		return _recentRequesters;
+	}
+	void setPendingRequestsCount(
+		int count,
+		const QVector<MTPlong> &recentRequesters);
+	void setPendingRequestsCount(
+		int count,
+		std::vector<UserId> recentRequesters);
 
 	[[nodiscard]] bool haveLeft() const {
 		return flags() & Flag::Left;
@@ -433,6 +441,7 @@ private:
 	int _restrictedCount = 0;
 	int _kickedCount = 0;
 	int _pendingRequestsCount = 0;
+	std::vector<UserId> _recentRequesters;
 	MsgId _availableMinId = 0;
 
 	RestrictionFlags _defaultRestrictions;

Telegram/SourceFiles/data/data_chat.cpp

@@ -147,7 +147,7 @@ void ChatData::setAdminRights(ChatAdminRights rights) {
 	}
 	_adminRights.set(rights);
 	if (!canHaveInviteLink()) {
-		setPendingRequestsCount(0);
+		setPendingRequestsCount(0, std::vector<UserId>{});
 	}
 	session().changes().peerUpdated(
 		this,
@@ -261,9 +261,23 @@ void ChatData::setBotCommands(
 	}
 }
 
-void ChatData::setPendingRequestsCount(int count) {
+void ChatData::setPendingRequestsCount(
-	if (_pendingRequestsCount != count) {
+		int count,
+		const QVector<MTPlong> &recentRequesters) {
+	setPendingRequestsCount(count, ranges::views::all(
+		recentRequesters
+	) | ranges::views::transform([&](const MTPlong &value) {
+		return UserId(value);
+	}) | ranges::to_vector);
+}
+
+void ChatData::setPendingRequestsCount(
+		int count,
+		std::vector<UserId> recentRequesters) {
+	if (_pendingRequestsCount != count
+		|| _recentRequesters != recentRequesters) {
 		_pendingRequestsCount = count;
+		_recentRequesters = std::move(recentRequesters);
 		session().changes().peerUpdated(this, UpdateFlag::PendingRequests);
 	}
 }
@@ -442,7 +456,8 @@ void ApplyChatUpdate(not_null<ChatData*> chat, const MTPDchatFull &update) {
 	chat->fullUpdated();
 	chat->setAbout(qs(update.vabout()));
 	chat->setPendingRequestsCount(
-		update.vrequests_pending().value_or_empty());
+		update.vrequests_pending().value_or_empty(),
+		update.vrecent_requesters().value_or_empty());
 
 	chat->session().api().applyNotifySettings(
 		MTP_inputNotifyPeer(chat->input),

Telegram/SourceFiles/data/data_chat.h

@@ -167,7 +167,15 @@ public:
 	[[nodiscard]] int pendingRequestsCount() const {
 		return _pendingRequestsCount;
 	}
-	void setPendingRequestsCount(int count);
+	[[nodiscard]] const std::vector<UserId> &recentRequesters() const {
+		return _recentRequesters;
+	}
+	void setPendingRequestsCount(
+		int count,
+		const QVector<MTPlong> &recentRequesters);
+	void setPendingRequestsCount(
+		int count,
+		std::vector<UserId> recentRequesters);
 
 	// Still public data members.
 	const MTPlong inputChat;
@@ -191,6 +199,7 @@ private:
 	AdminRightFlags _adminRights;
 	int _version = 0;
 	int _pendingRequestsCount = 0;
+	std::vector<UserId> _recentRequesters;
 
 	std::unique_ptr<Data::GroupCall> _call;
 	PeerId _callDefaultJoinAs = 0;