Handle links to replies section.

Telegram/SourceFiles/core/click_handler_types.cpp

@@ -19,6 +19,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_item.h"
 #include "data/data_user.h"
 #include "data/data_session.h"
+#include "window/window_session_controller.h"
 #include "facades.h"
 #include "app.h"
 
@@ -112,7 +113,11 @@ void MentionClickHandler::onClick(ClickContext context) const {
 	const auto button = context.button;
 	if (button == Qt::LeftButton || button == Qt::MiddleButton) {
 		if (const auto m = App::main()) { // multi good
-			m->openPeerByName(_tag.mid(1), ShowAtProfileMsgId);
+			using Info = Window::SessionNavigation::PeerByLinkInfo;
+			m->controller()->showPeerByLink(Info{
+				.usernameOrId = _tag.mid(1),
+				.messageId = ShowAtProfileMsgId
+			});
 		}
 	}
 }

Telegram/SourceFiles/core/local_url_handlers.cpp

@@ -273,25 +273,30 @@ bool ResolveUsername(
 	}
 	const auto commentParam = params.value(qsl("comment"));
 	const auto commentId = commentParam.toInt();
+	const auto threadParam = params.value(qsl("thread"));
+	const auto threadId = threadParam.toInt();
 	const auto gameParam = params.value(qsl("game"));
 	if (!gameParam.isEmpty() && valid(gameParam)) {
 		startToken = gameParam;
 		post = ShowAtGameShareMsgId;
 	}
 	const auto clickFromMessageId = context.value<FullMsgId>();
-	if (commentId) {
-		controller->content()->openCommentByName(
-			domain,
-			post,
-			commentId,
-			clickFromMessageId);
-	} else {
-		controller->content()->openPeerByName(
-			domain,
-			post,
-			startToken,
-			clickFromMessageId);
-	}
+	using Navigation = Window::SessionNavigation;
+	controller->showPeerByLink(Navigation::PeerByLinkInfo{
+		.usernameOrId = domain,
+		.messageId = post,
+		.repliesInfo = commentId
+			? Navigation::RepliesByLinkInfo{
+				Navigation::CommentId{ commentId }
+			}
+			: threadId
+			? Navigation::RepliesByLinkInfo{
+				Navigation::ThreadId{ threadId }
+			}
+			: Navigation::RepliesByLinkInfo{ v::null },
+		.startToken = startToken,
+		.clickFromMessageId = clickFromMessageId,
+	});
 	return true;
 }
 
@@ -307,46 +312,29 @@ bool ResolvePrivatePost(
 		qthelp::UrlParamNameTransform::ToLower);
 	const auto channelId = params.value(qsl("channel")).toInt();
 	const auto msgId = params.value(qsl("post")).toInt();
+	const auto commentParam = params.value(qsl("comment"));
+	const auto commentId = commentParam.toInt();
+	const auto threadParam = params.value(qsl("thread"));
+	const auto threadId = threadParam.toInt();
 	if (!channelId || !IsServerMsgId(msgId)) {
 		return false;
 	}
 	const auto clickFromMessageId = context.value<FullMsgId>();
-	const auto done = crl::guard(controller, [=](not_null<PeerData*> peer) {
-		auto params = Window::SectionShow{
-			Window::SectionShow::Way::Forward
-		};
-		params.origin = Window::SectionShow::OriginMessage{
-			clickFromMessageId
-		};
-		controller->showPeerHistory(
-			peer->id,
-			Window::SectionShow::Way::Forward,
-			msgId);
-	});
-	const auto fail = [=] {
-		Ui::show(Box<InformBox>(tr::lng_error_post_link_invalid(tr::now)));
-	};
-	const auto session = &controller->session();
-	if (const auto channel = session->data().channelLoaded(channelId)) {
-		done(channel);
-		return true;
-	}
-	session->api().request(MTPchannels_GetChannels(
-		MTP_vector<MTPInputChannel>(
-			1,
-			MTP_inputChannel(MTP_int(channelId), MTP_long(0)))
-	)).done([=](const MTPmessages_Chats &result) {
-		result.match([&](const auto &data) {
-			const auto peer = session->data().processChats(data.vchats());
-			if (peer && peer->id == peerFromChannel(channelId)) {
-				done(peer);
-			} else {
-				fail();
+	using Navigation = Window::SessionNavigation;
+	controller->showPeerByLink(Navigation::PeerByLinkInfo{
+		.usernameOrId = channelId,
+		.messageId = msgId,
+		.repliesInfo = commentId
+			? Navigation::RepliesByLinkInfo{
+				Navigation::CommentId{ commentId }
 			}
-		});
-	}).fail([=](const RPCError &error) {
-		fail();
-	}).send();
+			: threadId
+			? Navigation::RepliesByLinkInfo{
+				Navigation::ThreadId{ threadId }
+			}
+			: Navigation::RepliesByLinkInfo{ v::null },
+		.clickFromMessageId = clickFromMessageId,
+	});
 	return true;
 }
 

Telegram/SourceFiles/data/data_changes.h

@@ -67,27 +67,28 @@ struct PeerUpdate {
 		OnlineStatus      = (1 << 12),
 		BotCommands       = (1 << 13),
 		BotCanBeInvited   = (1 << 14),
-		CommonChats       = (1 << 15),
-		HasCalls          = (1 << 16),
-		SupportInfo       = (1 << 17),
-		IsBot             = (1 << 18),
+		BotStartToken     = (1 << 15),
+		CommonChats       = (1 << 16),
+		HasCalls          = (1 << 17),
+		SupportInfo       = (1 << 18),
+		IsBot             = (1 << 19),
 
 		// For chats and channels
-		InviteLink        = (1 << 19),
-		Members           = (1 << 20),
-		Admins            = (1 << 21),
-		BannedUsers       = (1 << 22),
-		Rights            = (1 << 23),
+		InviteLink        = (1 << 20),
+		Members           = (1 << 21),
+		Admins            = (1 << 22),
+		BannedUsers       = (1 << 23),
+		Rights            = (1 << 24),
 
 		// For channels
-		ChannelAmIn       = (1 << 24),
-		StickersSet       = (1 << 25),
-		ChannelLinkedChat = (1 << 26),
-		ChannelLocation   = (1 << 27),
-		Slowmode          = (1 << 28),
+		ChannelAmIn       = (1 << 25),
+		StickersSet       = (1 << 26),
+		ChannelLinkedChat = (1 << 27),
+		ChannelLocation   = (1 << 28),
+		Slowmode          = (1 << 29),
 
 		// For iteration
-		LastUsedBit       = (1 << 28),
+		LastUsedBit       = (1 << 29),
 	};
 	using Flags = base::flags<Flag>;
 	friend inline constexpr auto is_flag_type(Flag) { return true; }

Telegram/SourceFiles/history/history_widget.cpp

@@ -570,6 +570,7 @@ HistoryWidget::HistoryWidget(
 		| UpdateFlag::ChannelAmIn
 		| UpdateFlag::ChannelLinkedChat
 		| UpdateFlag::Slowmode
+		| UpdateFlag::BotStartToken
 	) | rpl::filter([=](const Data::PeerUpdate &update) {
 		return (update.peer.get() == _peer);
 	}) | rpl::map([](const Data::PeerUpdate &update) {
@@ -594,6 +595,10 @@ HistoryWidget::HistoryWidget(
 				return;
 			}
 		}
+		if (flags & UpdateFlag::BotStartToken) {
+			updateControlsVisibility();
+			updateControlsGeometry();
+		}
 		if (flags & UpdateFlag::PinnedMessage) {
 			if (pinnedMsgVisibilityUpdated()) {
 				updateHistoryGeometry();

Telegram/SourceFiles/history/view/history_view_replies_section.cpp

@@ -1210,7 +1210,8 @@ bool RepliesWidget::showInternal(
 		not_null<Window::SectionMemento*> memento,
 		const Window::SectionShow &params) {
 	if (auto logMemento = dynamic_cast<RepliesMemento*>(memento.get())) {
-		if (logMemento->getHistory() == history()) {
+		if (logMemento->getHistory() == history()
+			&& logMemento->getRootId() == _rootId) {
 			restoreState(logMemento);
 			return true;
 		}

Telegram/SourceFiles/info/info_controller.cpp

@@ -133,6 +133,13 @@ void AbstractController::showBackFromStack(
 	return parentController()->showBackFromStack(params);
 }
 
+void AbstractController::showPeerHistory(
+		PeerId peerId,
+		const Window::SectionShow &params,
+		MsgId msgId) {
+	return parentController()->showPeerHistory(peerId, params, msgId);
+}
+
 Controller::Controller(
 	not_null<WrapWidget*> widget,
 	not_null<Window::SessionController*> window,

Telegram/SourceFiles/info/info_controller.h

@@ -140,6 +140,12 @@ public:
 		const Window::SectionShow &params = Window::SectionShow()) override;
 	void showBackFromStack(
 		const Window::SectionShow &params = Window::SectionShow()) override;
+
+	void showPeerHistory(
+		PeerId peerId,
+		const Window::SectionShow &params = Window::SectionShow::Way::ClearStack,
+		MsgId msgId = ShowAtUnreadMsgId) override;
+
 	not_null<Window::SessionController*> parentController() override {
 		return _parent;
 	}

Telegram/SourceFiles/mainwidget.cpp

@@ -2597,136 +2597,12 @@ void MainWidget::searchInChat(Dialogs::Key chat) {
 	}
 }
 
-void MainWidget::openPeerResolved(
-		not_null<PeerData*> peer,
-		MsgId msgId,
-		const QString &startToken,
-		FullMsgId clickFromMessageId) {
-	if (msgId == ShowAtGameShareMsgId) {
-		if (peer->isUser() && peer->asUser()->isBot() && !startToken.isEmpty()) {
-			peer->asUser()->botInfo->shareGameShortName = startToken;
-			AddBotToGroupBoxController::Start(
-				_controller,
-				peer->asUser());
-		} else {
-			InvokeQueued(this, [this, peer] {
-				_controller->showPeerHistory(
-					peer->id,
-					SectionShow::Way::Forward);
-			});
-		}
-	} else if (msgId == ShowAtProfileMsgId && !peer->isChannel()) {
-		if (peer->isUser() && peer->asUser()->isBot() && !peer->asUser()->botInfo->cantJoinGroups && !startToken.isEmpty()) {
-			peer->asUser()->botInfo->startGroupToken = startToken;
-			AddBotToGroupBoxController::Start(
-				_controller,
-				peer->asUser());
-		} else if (peer->isUser() && peer->asUser()->isBot()) {
-			// Always open bot chats, even from mention links.
-			InvokeQueued(this, [this, peer] {
-				_controller->showPeerHistory(
-					peer->id,
-					SectionShow::Way::Forward);
-			});
-		} else {
-			_controller->showPeerInfo(peer);
-		}
-	} else {
-		if (msgId == ShowAtProfileMsgId || !peer->isChannel()) { // show specific posts only in channels / supergroups
-			msgId = ShowAtUnreadMsgId;
-		}
-		if (peer->isUser() && peer->asUser()->isBot()) {
-			peer->asUser()->botInfo->startToken = startToken;
-			if (peer == _history->peer()) {
-				_history->updateControlsVisibility();
-				_history->updateControlsGeometry();
-			}
-		}
-		InvokeQueued(this, [=] {
-			auto params = SectionShow{
-				SectionShow::Way::Forward
-			};
-			params.origin = SectionShow::OriginMessage{
-				clickFromMessageId
-			};
-			_controller->showPeerHistory(peer->id, params, msgId);
-		});
-	}
-}
-
-void MainWidget::openPeerByName(
-		const QString &username,
-		MsgId msgId,
-		const QString &startToken,
-		FullMsgId clickFromMessageId) {
-	Core::App().hideMediaView();
-	resolveUsername(username, [=](not_null<PeerData*> peer) {
-		openPeerResolved(peer, msgId, startToken, clickFromMessageId);
-	});
-}
-
-void MainWidget::openCommentByName(
-		const QString &username,
-		MsgId msgId,
-		MsgId commentId,
-		FullMsgId clickFromMessageId) {
-	Core::App().hideMediaView();
-	resolveUsername(username, [=](not_null<PeerData*> peer) {
-		InvokeQueued(this, [=] {
-			auto params = SectionShow{
-				SectionShow::Way::Forward
-			};
-			params.origin = SectionShow::OriginMessage{
-				clickFromMessageId
-			};
-			_controller->showRepliesForMessage(
-				session().data().history(peer),
-				msgId,
-				commentId,
-				params);
-		});
-	});
-	Core::App().hideMediaView();
-}
-
 bool MainWidget::contentOverlapped(const QRect &globalRect) {
 	return (_history->contentOverlapped(globalRect)
 			|| _playerPlaylist->overlaps(globalRect)
 			|| (_playerVolume && _playerVolume->overlaps(globalRect)));
 }
 
-void MainWidget::resolveUsername(
-		const QString &username,
-		Fn<void(not_null<PeerData*>)> done) {
-	if (const auto peer = session().data().peerByUsername(username)) {
-		done(peer);
-		return;
-	}
-	_api.request(base::take(_resolveRequestId)).cancel();
-	_resolveRequestId = _api.request(MTPcontacts_ResolveUsername(
-		MTP_string(username)
-	)).done([=](const MTPcontacts_ResolvedPeer &result) {
-		_resolveRequestId = 0;
-		Ui::hideLayer();
-		if (result.type() != mtpc_contacts_resolvedPeer) {
-			return;
-		}
-
-		const auto &d(result.c_contacts_resolvedPeer());
-		session().data().processUsers(d.vusers());
-		session().data().processChats(d.vchats());
-		if (const auto peerId = peerFromMTP(d.vpeer())) {
-			done(session().data().peer(peerId));
-		}
-	}).fail([=](const RPCError &error) {
-		_resolveRequestId = 0;
-		if (error.code() == 400) {
-			Ui::show(Box<InformBox>(
-				tr::lng_username_not_found(tr::now, lt_user, username)));
-		}
-	}).send();
-}
-
 void MainWidget::activate() {
 	if (_a_show.animating()) {
 		return;

Telegram/SourceFiles/mainwidget.h

@@ -122,17 +122,6 @@ public:
 
 	void showAnimated(const QPixmap &bgAnimCache, bool back = false);
 
-	void openPeerByName(
-		const QString &name,
-		MsgId msgId = ShowAtUnreadMsgId,
-		const QString &startToken = QString(),
-		FullMsgId clickFromMessageId = FullMsgId());
-	void openCommentByName(
-		const QString &name,
-		MsgId msgId,
-		MsgId commentId,
-		FullMsgId clickFromMessageId = FullMsgId());
-
 	void activate();
 
 	void windowShown();
@@ -294,15 +283,6 @@ private:
 
 	void saveSectionInStack();
 
-	void resolveUsername(
-		const QString &username,
-		Fn<void(not_null<PeerData*>)> done);
-	void openPeerResolved(
-		not_null<PeerData*> peer,
-		MsgId msgId,
-		const QString &startToken,
-		FullMsgId clickFromMessageId);
-
 	int getMainSectionTop() const;
 	int getThirdSectionTop() const;
 
@@ -406,7 +386,6 @@ private:
 	base::flat_map<not_null<PeerData*>, mtpRequestId> _viewsIncrementRequests;
 	base::flat_map<mtpRequestId, not_null<PeerData*>> _viewsIncrementByRequest;
 	base::Timer _viewsIncrementTimer;
-	mtpRequestId _resolveRequestId = 0;
 
 	struct SettingBackground;
 	std::unique_ptr<SettingBackground> _background;

Telegram/SourceFiles/window/window_session_controller.cpp

@@ -8,6 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/window_session_controller.h"
 
 #include "boxes/peers/edit_peer_info_box.h"
+#include "boxes/peer_list_controllers.h"
 #include "window/window_controller.h"
 #include "window/main_window.h"
 #include "window/window_filters_menu.h"
@@ -24,6 +25,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_folder.h"
 #include "data/data_channel.h"
 #include "data/data_chat.h"
+#include "data/data_user.h"
+#include "data/data_changes.h"
 #include "data/data_chat_filters.h"
 #include "data/data_photo.h" // requestAttachedStickerSets.
 #include "passport/passport_form_controller.h"
@@ -85,12 +88,155 @@ SessionNavigation::SessionNavigation(not_null<Main::Session*> session)
 
 SessionNavigation::~SessionNavigation() {
 	_session->api().request(base::take(_showingRepliesRequestId)).cancel();
+	_session->api().request(base::take(_resolveRequestId)).cancel();
 }
 
 Main::Session &SessionNavigation::session() const {
 	return *_session;
 }
 
+void SessionNavigation::showPeerByLink(const PeerByLinkInfo &info) {
+	Core::App().hideMediaView();
+	if (const auto username = std::get_if<QString>(&info.usernameOrId)) {
+		resolveUsername(*username, [=](not_null<PeerData*> peer) {
+			showPeerByLinkResolved(peer, info);
+		});
+	} else if (const auto id = std::get_if<ChannelId>(&info.usernameOrId)) {
+		resolveChannelById(*id, [=](not_null<ChannelData*> channel) {
+			showPeerByLinkResolved(channel, info);
+		});
+	}
+}
+
+void SessionNavigation::resolveUsername(
+		const QString &username,
+		Fn<void(not_null<PeerData*>)> done) {
+	if (const auto peer = _session->data().peerByUsername(username)) {
+		done(peer);
+		return;
+	}
+	_session->api().request(base::take(_resolveRequestId)).cancel();
+	_resolveRequestId = _session->api().request(MTPcontacts_ResolveUsername(
+		MTP_string(username)
+	)).done([=](const MTPcontacts_ResolvedPeer &result) {
+		_resolveRequestId = 0;
+		Ui::hideLayer();
+		if (result.type() != mtpc_contacts_resolvedPeer) {
+			return;
+		}
+
+		const auto &d(result.c_contacts_resolvedPeer());
+		_session->data().processUsers(d.vusers());
+		_session->data().processChats(d.vchats());
+		if (const auto peerId = peerFromMTP(d.vpeer())) {
+			done(_session->data().peer(peerId));
+		}
+	}).fail([=](const RPCError &error) {
+		_resolveRequestId = 0;
+		if (error.code() == 400) {
+			Ui::show(Box<InformBox>(
+				tr::lng_username_not_found(tr::now, lt_user, username)));
+		}
+	}).send();
+}
+
+void SessionNavigation::resolveChannelById(
+		ChannelId channelId,
+		Fn<void(not_null<ChannelData*>)> done) {
+	if (const auto channel = _session->data().channelLoaded(channelId)) {
+		done(channel);
+		return;
+	}
+	const auto fail = [=] {
+		Ui::show(Box<InformBox>(tr::lng_error_post_link_invalid(tr::now)));
+	};
+	_session->api().request(base::take(_resolveRequestId)).cancel();
+	_resolveRequestId = _session->api().request(MTPchannels_GetChannels(
+		MTP_vector<MTPInputChannel>(
+			1,
+			MTP_inputChannel(MTP_int(channelId), MTP_long(0)))
+	)).done([=](const MTPmessages_Chats &result) {
+		result.match([&](const auto &data) {
+			const auto peer = _session->data().processChats(data.vchats());
+			if (peer && peer->id == peerFromChannel(channelId)) {
+				done(peer->asChannel());
+			} else {
+				fail();
+			}
+		});
+	}).fail([=](const RPCError &error) {
+		fail();
+	}).send();
+}
+
+void SessionNavigation::showPeerByLinkResolved(
+		not_null<PeerData*> peer,
+		const PeerByLinkInfo &info) {
+	auto params = SectionShow{
+		SectionShow::Way::Forward
+	};
+	params.origin = SectionShow::OriginMessage{
+		info.clickFromMessageId
+	};
+	const auto &replies = info.repliesInfo;
+	if (const auto threadId = std::get_if<ThreadId>(&replies)) {
+		showRepliesForMessage(
+			session().data().history(peer),
+			threadId->id,
+			info.messageId,
+			params);
+	} else if (const auto commentId = std::get_if<CommentId>(&replies)) {
+		showRepliesForMessage(
+			session().data().history(peer),
+			info.messageId,
+			commentId->id,
+			params);
+	} else if (info.messageId == ShowAtGameShareMsgId) {
+		const auto user = peer->asUser();
+		if (user && user->isBot() && !info.startToken.isEmpty()) {
+			user->botInfo->shareGameShortName = info.startToken;
+			AddBotToGroupBoxController::Start(this, user);
+		} else {
+			crl::on_main(this, [=] {
+				showPeerHistory(peer->id, params);
+			});
+		}
+	} else if (info.messageId == ShowAtProfileMsgId && !peer->isChannel()) {
+		const auto user = peer->asUser();
+		if (user
+			&& user->isBot()
+			&& !user->botInfo->cantJoinGroups
+			&& !info.startToken.isEmpty()) {
+			user->botInfo->startGroupToken = info.startToken;
+			AddBotToGroupBoxController::Start(this, user);
+		} else if (user && user->isBot()) {
+			// Always open bot chats, even from mention links.
+			crl::on_main(this, [=] {
+				showPeerHistory(peer->id, params);
+			});
+		} else {
+			showPeerInfo(peer, params);
+		}
+	} else {
+		const auto user = peer->asUser();
+		auto msgId = info.messageId;
+		if (msgId == ShowAtProfileMsgId || !peer->isChannel()) {
+			// Show specific posts only in channels / supergroups.
+			msgId = ShowAtUnreadMsgId;
+		}
+		if (user && user->isBot()) {
+			user->botInfo->startToken = info.startToken;
+			user->session().changes().peerUpdated(
+				user,
+				Data::PeerUpdate::Flag::BotStartToken);
+		}
+		crl::on_main(this, [=] {
+			showPeerHistory(peer->id, params, msgId);
+		});
+	}
+
+}
+
 void SessionNavigation::showRepliesForMessage(
 		not_null<History*> history,
 		MsgId rootId,
@@ -104,17 +250,17 @@ void SessionNavigation::showRepliesForMessage(
 	_session->api().request(base::take(_showingRepliesRequestId)).cancel();
 
 	const auto channelId = history->channelId();
-	const auto item = _session->data().message(channelId, rootId);
-	if (!commentId && (!item || !item->repliesAreComments())) {
-		showSection(HistoryView::RepliesMemento(history, rootId));
-		return;
-	} else if (const auto id = item ? item->commentsItemId() : FullMsgId()) {
-		if (const auto commentsItem = _session->data().message(id)) {
-			showSection(
-				HistoryView::RepliesMemento(commentsItem));
-			return;
-		}
-	}
+	//const auto item = _session->data().message(channelId, rootId);
+	//if (!commentId && (!item || !item->repliesAreComments())) {
+	//	showSection(HistoryView::RepliesMemento(history, rootId));
+	//	return;
+	//} else if (const auto id = item ? item->commentsItemId() : FullMsgId()) {
+	//	if (const auto commentsItem = _session->data().message(id)) {
+	//		showSection(
+	//			HistoryView::RepliesMemento(commentsItem));
+	//		return;
+	//	}
+	//}
 	_showingRepliesHistory = history;
 	_showingRepliesRootId = rootId;
 	_showingRepliesRequestId = _session->api().request(
@@ -155,7 +301,7 @@ void SessionNavigation::showRepliesForMessage(
 					item->setRepliesOutboxReadTill(readTill->v);
 				}
 				const auto post = _session->data().message(channelId, rootId);
-				if (post) {
+				if (post && item->history()->channelId() != channelId) {
 					post->setCommentsItemId(item->fullId());
 					if (const auto maxId = data.vmax_id()) {
 						post->setRepliesMaxId(maxId->v);
@@ -199,6 +345,26 @@ void SessionNavigation::showPeerInfo(
 	showPeerInfo(history->peer->id, params);
 }
 
+void SessionNavigation::showPeerHistory(
+		not_null<PeerData*> peer,
+		const SectionShow &params,
+		MsgId msgId) {
+	showPeerHistory(
+		peer->id,
+		params,
+		msgId);
+}
+
+void SessionNavigation::showPeerHistory(
+		not_null<History*> history,
+		const SectionShow &params,
+		MsgId msgId) {
+	showPeerHistory(
+		history->peer->id,
+		params,
+		msgId);
+}
+
 void SessionNavigation::showSettings(
 		Settings::Type type,
 		const SectionShow &params) {
@@ -905,26 +1071,6 @@ void SessionController::showPeerHistory(
 		msgId);
 }
 
-void SessionController::showPeerHistory(
-		not_null<PeerData*> peer,
-		const SectionShow &params,
-		MsgId msgId) {
-	showPeerHistory(
-		peer->id,
-		params,
-		msgId);
-}
-
-void SessionController::showPeerHistory(
-		not_null<History*> history,
-		const SectionShow &params,
-		MsgId msgId) {
-	showPeerHistory(
-		history->peer->id,
-		params,
-		msgId);
-}
-
 void SessionController::showSection(
 		SectionMemento &&memento,
 		const SectionShow &params) {

Telegram/SourceFiles/window/window_session_controller.h

@@ -138,6 +138,22 @@ public:
 		const SectionShow &params = SectionShow()) = 0;
 	virtual not_null<SessionController*> parentController() = 0;
 
+	struct CommentId {
+		MsgId id = 0;
+	};
+	struct ThreadId {
+		MsgId id = 0;
+	};
+	using RepliesByLinkInfo = std::variant<v::null_t, CommentId, ThreadId>;
+	struct PeerByLinkInfo {
+		std::variant<QString, ChannelId> usernameOrId;
+		MsgId messageId = ShowAtUnreadMsgId;
+		RepliesByLinkInfo repliesInfo;
+		QString startToken;
+		FullMsgId clickFromMessageId;
+	};
+	void showPeerByLink(const PeerByLinkInfo &info);
+
 	void showRepliesForMessage(
 		not_null<History*> history,
 		MsgId rootId,
@@ -154,6 +170,27 @@ public:
 		not_null<History*> history,
 		const SectionShow &params = SectionShow());
 
+	virtual void showPeerHistory(
+		PeerId peerId,
+		const SectionShow &params = SectionShow::Way::ClearStack,
+		MsgId msgId = ShowAtUnreadMsgId) = 0;
+	void showPeerHistory(
+		not_null<PeerData*> peer,
+		const SectionShow &params = SectionShow::Way::ClearStack,
+		MsgId msgId = ShowAtUnreadMsgId);
+	void showPeerHistory(
+		not_null<History*> history,
+		const SectionShow &params = SectionShow::Way::ClearStack,
+		MsgId msgId = ShowAtUnreadMsgId);
+
+	void clearSectionStack(
+			const SectionShow &params = SectionShow::Way::ClearStack) {
+		showPeerHistory(
+			PeerId(0),
+			params,
+			ShowAtUnreadMsgId);
+	}
+
 	void showSettings(
 		Settings::Type type,
 		const SectionShow &params = SectionShow());
@@ -166,8 +203,21 @@ public:
 
 
 private:
+	void resolveUsername(
+		const QString &username,
+		Fn<void(not_null<PeerData*>)> done);
+	void resolveChannelById(
+		ChannelId channelId,
+		Fn<void(not_null<ChannelData*>)> done);
+
+	void showPeerByLinkResolved(
+		not_null<PeerData*> peer,
+		const PeerByLinkInfo &info);
+
 	const not_null<Main::Session*> _session;
 
+	mtpRequestId _resolveRequestId = 0;
+
 	History *_showingRepliesHistory = nullptr;
 	MsgId _showingRepliesRootId = 0;
 	mtpRequestId _showingRepliesRequestId = 0;
@@ -251,26 +301,11 @@ public:
 	void showBackFromStack(
 		const SectionShow &params = SectionShow()) override;
 
+	using SessionNavigation::showPeerHistory;
 	void showPeerHistory(
 		PeerId peerId,
 		const SectionShow &params = SectionShow::Way::ClearStack,
-		MsgId msgId = ShowAtUnreadMsgId);
-	void showPeerHistory(
-		not_null<PeerData*> peer,
-		const SectionShow &params = SectionShow::Way::ClearStack,
-		MsgId msgId = ShowAtUnreadMsgId);
-	void showPeerHistory(
-		not_null<History*> history,
-		const SectionShow &params = SectionShow::Way::ClearStack,
-		MsgId msgId = ShowAtUnreadMsgId);
-
-	void clearSectionStack(
-			const SectionShow &params = SectionShow::Way::ClearStack) {
-		showPeerHistory(
-			PeerId(0),
-			params,
-			ShowAtUnreadMsgId);
-	}
+		MsgId msgId = ShowAtUnreadMsgId) override;
 
 	void showSpecialLayer(
 		object_ptr<Ui::LayerWidget> &&layer,