Update API scheme to layer 149.

Telegram/Resources/tl/api.tl

@@ -266,7 +266,7 @@ messages.dialogsNotModified#f0e3e596 count:int = messages.Dialogs;
 
 messages.messages#8c718e87 messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Messages;
 messages.messagesSlice#3a54685e flags:# inexact:flags.1?true count:int next_rate:flags.0?int offset_id_offset:flags.2?int messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Messages;
-messages.channelMessages#64479808 flags:# inexact:flags.1?true pts:int count:int offset_id_offset:flags.2?int messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Messages;
+messages.channelMessages#c776ba4e flags:# inexact:flags.1?true pts:int count:int offset_id_offset:flags.2?int messages:Vector<Message> topics:Vector<ForumTopic> chats:Vector<Chat> users:Vector<User> = messages.Messages;
 messages.messagesNotModified#74535f21 count:int = messages.Messages;
 
 messages.chats#64ff9fd5 chats:Vector<Chat> = messages.Chats;
@@ -401,7 +401,8 @@ updateRecentEmojiStatuses#30f443db = Update;
 updateRecentReactions#6f7863f4 = Update;
 updateMoveStickerSetToTop#86fccf85 flags:# masks:flags.0?true emojis:flags.1?true stickerset:long = Update;
 updateMessageExtendedMedia#5a73a98c peer:Peer msg_id:int extended_media:MessageExtendedMedia = Update;
-updateChannelPinnedTopic#f694b0ae flags:# channel_id:long topic_id:flags.0?int = Update;
+updateChannelPinnedTopic#192efbe3 flags:# pinned:flags.0?true channel_id:long topic_id:int = Update;
+updateChannelPinnedTopics#fe198602 flags:# channel_id:long order:flags.0?Vector<int> = Update;
 
 updates.state#a56c2a3e pts:int qts:int date:int seq:int unread_count:int = updates.State;
 
@@ -1466,7 +1467,7 @@ stickerKeyword#fcfeb29c document_id:long keyword:Vector<string> = StickerKeyword
 username#b4073647 flags:# editable:flags.0?true active:flags.1?true username:string = Username;
 
 forumTopicDeleted#23f109b id:int = ForumTopic;
-forumTopic#71701da9 flags:# my:flags.1?true closed:flags.2?true pinned:flags.3?true id:int date:int title:string icon_color:int icon_emoji_id:flags.0?long top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int from_id:Peer notify_settings:PeerNotifySettings draft:flags.4?DraftMessage = ForumTopic;
+forumTopic#71701da9 flags:# my:flags.1?true closed:flags.2?true pinned:flags.3?true short:flags.5?true id:int date:int title:string icon_color:int icon_emoji_id:flags.0?long top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int from_id:Peer notify_settings:PeerNotifySettings draft:flags.4?DraftMessage = ForumTopic;
 
 messages.forumTopics#367617d3 flags:# order_by_create_date:flags.0?true count:int topics:Vector<ForumTopic> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> pts:int = messages.ForumTopics;
 
@@ -1880,6 +1881,7 @@ channels.getForumTopicsByID#b0831eb9 channel:InputChannel topics:Vector<int> = m
 channels.editForumTopic#6c883e2d flags:# channel:InputChannel topic_id:int title:flags.0?string icon_emoji_id:flags.1?long closed:flags.2?Bool = Updates;
 channels.updatePinnedForumTopic#6c2d9026 channel:InputChannel topic_id:int pinned:Bool = Updates;
 channels.deleteTopicHistory#34435f2d channel:InputChannel top_msg_id:int = messages.AffectedHistory;
+channels.reorderPinnedForumTopics#2950a18f flags:# force:flags.0?true channel:InputChannel order:Vector<int> = Updates;
 
 bots.sendCustomRequest#aa2769ed custom_method:string params:DataJSON = DataJSON;
 bots.answerWebhookJSONQuery#e6213f4d query_id:long data:DataJSON = Bool;
@@ -1958,4 +1960,4 @@ stats.getMegagroupStats#dcdf8607 flags:# dark:flags.0?true channel:InputChannel
 stats.getMessagePublicForwards#5630281b channel:InputChannel msg_id:int offset_rate:int offset_peer:InputPeer offset_id:int limit:int = messages.Messages;
 stats.getMessageStats#b6e0a3f5 flags:# dark:flags.0?true channel:InputChannel msg_id:int = stats.MessageStats;
 
-// LAYER 148
+// LAYER 149

Telegram/SourceFiles/api/api_updates.cpp

@@ -2297,19 +2297,19 @@ void Updates::feedUpdate(const MTPUpdate &update) {
 		const auto &d = update.c_updateChannelPinnedTopic();
 		const auto peerId = peerFromChannel(d.vchannel_id());
 		if (const auto peer = session().data().peerLoaded(peerId)) {
-			const auto rootId = d.vtopic_id().value_or_empty();
+			const auto rootId = d.vtopic_id().v;
 			if (const auto topic = peer->forumTopicFor(rootId)) {
-				session().data().setChatPinned(topic, 0, true);
+				session().data().setChatPinned(topic, 0, d.is_pinned());
 			} else if (const auto forum = peer->forum()) {
-				if (rootId) {
-					forum->requestTopic(rootId);
-				} else {
-					forum->unpinTopic();
-				}
+				forum->requestTopic(rootId);
 			}
 		}
 	} break;
 
+	case mtpc_updateChannelPinnedTopics: {
+		const auto &d = update.c_updateChannelPinnedTopics();
+	} break;
+
 	// Pinned message.
 	case mtpc_updatePinnedMessages: {
 		const auto &d = update.c_updatePinnedMessages();

Telegram/SourceFiles/data/data_forum.cpp

@@ -37,13 +37,14 @@ constexpr auto kTopicsFirstLoad = 20;
 constexpr auto kLoadedTopicsMinCount = 20;
 constexpr auto kTopicsPerPage = 500;
 constexpr auto kStalePerRequest = 100;
+constexpr auto kPinnedLimit = 5;
 // constexpr auto kGeneralColorId = 0xA9A9A9;
 
 } // namespace
 
 Forum::Forum(not_null<History*> history)
 : _history(history)
-, _topicsList(&session(), FilterId(0), rpl::single(1)) {
+, _topicsList(&session(), FilterId(0), rpl::single(kPinnedLimit)) {
 	Expects(_history->peer->isChannel());
 
 	if (_history->inChatList()) {
@@ -95,13 +96,6 @@ not_null<Dialogs::MainList*> Forum::topicsList() {
 	return &_topicsList;
 }
 
-void Forum::unpinTopic() {
-	const auto list = _topicsList.pinned();
-	while (!list->order().empty()) {
-		list->setPinned(list->order().front(), false);
-	}
-}
-
 rpl::producer<> Forum::destroyed() const {
 	return channel()->flagsValue(
 	) | rpl::filter([=](const ChannelData::Flags::Change &update) {
@@ -147,9 +141,12 @@ void Forum::requestTopics() {
 		MTP_int(_offset.topicId),
 		MTP_int(loadCount)
 	)).done([=](const MTPmessages_ForumTopics &result) {
+		const auto previousOffset = _offset;
 		applyReceivedTopics(result, _offset);
 		const auto &list = result.data().vtopics().v;
-		if (list.isEmpty() || list.size() == result.data().vcount().v) {
+		if (list.isEmpty()
+			|| list.size() == result.data().vcount().v
+			|| (_offset == previousOffset)) {
 			_topicsList.setLoaded();
 		}
 		_requestId = 0;

Telegram/SourceFiles/data/data_forum.h

@@ -53,7 +53,6 @@ public:
 	void requestTopics();
 	[[nodiscard]] rpl::producer<> chatsListChanges() const;
 	[[nodiscard]] rpl::producer<> chatsListLoadedEvents() const;
-	void unpinTopic();
 
 	void requestTopic(MsgId rootId, Fn<void()> done = nullptr);
 	ForumTopic *applyTopicAdded(

Telegram/SourceFiles/data/data_session.cpp

@@ -1921,9 +1921,6 @@ void Session::setChatPinned(
 	const auto list = (filterId
 		? chatsFilters().chatsList(filterId)
 		: chatsListFor(key.entry()))->pinned();
-	if (const auto topic = key.topic()) {
-		topic->forum()->unpinTopic();
-	}
 	list->setPinned(key, pinned);
 	notifyPinnedDialogsOrderUpdated();
 }