Allow editing topic title and icon.

Telegram/SourceFiles/info/info_content_widget.cpp

@@ -7,9 +7,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "info/info_content_widget.h"
 
-#include <rpl/never.h>
-#include <rpl/combine.h>
-#include <rpl/range.h>
 #include "window/window_session_controller.h"
 #include "ui/widgets/scroll_area.h"
 #include "ui/widgets/input_fields.h"
@@ -23,7 +20,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "info/info_section_widget.h"
 #include "info/info_controller.h"
 #include "boxes/peer_list_box.h"
+#include "data/data_chat.h"
 #include "data/data_session.h"
+#include "data/data_forum_topic.h"
+#include "history/history.h"
 #include "main/main_session.h"
 #include "styles/style_info.h"
 #include "styles/style_profile.h"
@@ -323,7 +323,9 @@ rpl::producer<bool> ContentWidget::desiredBottomShadowVisibility() const {
 }
 
 Key ContentMemento::key() const {
-	if (const auto peer = this->peer()) {
+	if (const auto topic = this->topic()) {
+		return Key(topic);
+	} else if (const auto peer = this->peer()) {
 		return Key(peer);
 	} else if (const auto poll = this->poll()) {
 		return Key(poll, pollContextId());
@@ -334,6 +336,12 @@ Key ContentMemento::key() const {
 	}
 }
 
+ContentMemento::ContentMemento(not_null<Data::ForumTopic*> topic)
+: _peer(topic->forum()->peer)
+, _migratedPeerId(_peer->migrateFrom() ? _peer->migrateFrom()->id : 0)
+, _topic(topic) {
+}
+
 ContentMemento::ContentMemento(Settings::Tag settings)
 : _settingsSelf(settings.self.get()) {
 }

Telegram/SourceFiles/info/info_content_widget.h

@@ -148,6 +148,7 @@ public:
 	: _peer(peer)
 	, _migratedPeerId(migratedPeerId) {
 	}
+	explicit ContentMemento(not_null<Data::ForumTopic*> topic);
 	explicit ContentMemento(Settings::Tag settings);
 	explicit ContentMemento(Downloads::Tag downloads);
 	ContentMemento(not_null<PollData*> poll, FullMsgId contextId)
@@ -166,6 +167,9 @@ public:
 	PeerId migratedPeerId() const {
 		return _migratedPeerId;
 	}
+	Data::ForumTopic *topic() const {
+		return _topic;
+	}
 	UserData *settingsSelf() const {
 		return _settingsSelf;
 	}
@@ -209,6 +213,7 @@ public:
 private:
 	PeerData * const _peer = nullptr;
 	const PeerId _migratedPeerId = 0;
+	Data::ForumTopic * const _topic = nullptr;
 	UserData * const _settingsSelf = nullptr;
 	PollData * const _poll = nullptr;
 	const FullMsgId _pollContextId;

Telegram/SourceFiles/info/info_controller.cpp

@@ -7,8 +7,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "info/info_controller.h"
 
-#include <rpl/range.h>
-#include <rpl/then.h>
 #include "ui/search_field_controller.h"
 #include "data/data_shared_media.h"
 #include "info/info_content_widget.h"
@@ -19,6 +17,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_peer.h"
 #include "data/data_channel.h"
 #include "data/data_chat.h"
+#include "data/data_forum_topic.h"
 #include "data/data_session.h"
 #include "data/data_media_types.h"
 #include "data/data_download_manager.h"
@@ -32,6 +31,9 @@ namespace Info {
 Key::Key(not_null<PeerData*> peer) : _value(peer) {
 }
 
+Key::Key(not_null<Data::ForumTopic*> topic) : _value(topic) {
+}
+
 Key::Key(Settings::Tag settings) : _value(settings) {
 }
 
@@ -45,6 +47,16 @@ Key::Key(not_null<PollData*> poll, FullMsgId contextId)
 PeerData *Key::peer() const {
 	if (const auto peer = std::get_if<not_null<PeerData*>>(&_value)) {
 		return *peer;
+	} else if (const auto topic = this->topic()) {
+		return topic->forum()->peer;
+	}
+	return nullptr;
+}
+
+Data::ForumTopic *Key::topic() const {
+	if (const auto topic = std::get_if<not_null<Data::ForumTopic*>>(
+			&_value)) {
+		return *topic;
 	}
 	return nullptr;
 }

Telegram/SourceFiles/info/info_controller.h

@@ -7,16 +7,18 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
-#include <rpl/variable.h>
 #include "data/data_search_controller.h"
 #include "window/window_session_controller.h"
 
+namespace Data {
+class ForumTopic;
+} // namespace Data
+
 namespace Ui {
 class SearchFieldController;
 } // namespace Ui
 
-namespace Info {
-namespace Settings {
+namespace Info::Settings {
 
 struct Tag {
 	explicit Tag(not_null<UserData*> self) : self(self) {
@@ -25,23 +27,27 @@ struct Tag {
 	not_null<UserData*> self;
 };
 
-} // namespace Settings
+} // namespace Info::Settings
 
-namespace Downloads {
+namespace Info::Downloads {
 
 struct Tag {
 };
 
-} // namespace Downloads
+} // namespace Info::Downloads
+
+namespace Info {
 
 class Key {
 public:
-	Key(not_null<PeerData*> peer);
+	explicit Key(not_null<PeerData*> peer);
+	explicit Key(not_null<Data::ForumTopic*> topic);
 	Key(Settings::Tag settings);
 	Key(Downloads::Tag downloads);
 	Key(not_null<PollData*> poll, FullMsgId contextId);
 
 	PeerData *peer() const;
+	Data::ForumTopic *topic() const;
 	UserData *settingsSelf() const;
 	bool isDownloads() const;
 	PollData *poll() const;
@@ -54,6 +60,7 @@ private:
 	};
 	std::variant<
 		not_null<PeerData*>,
+		not_null<Data::ForumTopic*>,
 		Settings::Tag,
 		Downloads::Tag,
 		PollKey> _value;

Telegram/SourceFiles/info/info_memento.cpp

@@ -33,6 +33,14 @@ Memento::Memento(not_null<PeerData*> peer, Section section)
 : Memento(DefaultStack(peer, section)) {
 }
 
+Memento::Memento(not_null<Data::ForumTopic*> topic)
+: Memento(topic, Section::Type::Profile) {
+}
+
+Memento::Memento(not_null<Data::ForumTopic*> topic, Section section)
+: Memento(DefaultStack(topic, section)) {
+}
+
 Memento::Memento(Settings::Tag settings, Section section)
 : Memento(DefaultStack(settings, section)) {
 }
@@ -53,6 +61,14 @@ std::vector<std::shared_ptr<ContentMemento>> Memento::DefaultStack(
 	return result;
 }
 
+std::vector<std::shared_ptr<ContentMemento>> Memento::DefaultStack(
+		not_null<Data::ForumTopic*> topic,
+		Section section) {
+	auto result = std::vector<std::shared_ptr<ContentMemento>>();
+	result.push_back(DefaultContent(topic, section));
+	return result;
+}
+
 std::vector<std::shared_ptr<ContentMemento>> Memento::DefaultStack(
 		Settings::Tag settings,
 		Section section) {
@@ -111,6 +127,18 @@ std::shared_ptr<ContentMemento> Memento::DefaultContent(
 	Unexpected("Wrong section type in Info::Memento::DefaultContent()");
 }
 
+std::shared_ptr<ContentMemento> Memento::DefaultContent(
+		not_null<Data::ForumTopic*> topic,
+		Section section) {
+	switch (section.type()) {
+	case Section::Type::Profile:
+		return std::make_shared<Profile::Memento>(topic);
+	case Section::Type::Media:
+		return std::make_shared<Media::Memento>(topic, section.mediaType());
+	}
+	Unexpected("Wrong section type in Info::Memento::DefaultContent()");
+}
+
 object_ptr<Window::SectionWidget> Memento::createWidget(
 		QWidget *parent,
 		not_null<Window::SessionController*> controller,

Telegram/SourceFiles/info/info_memento.h

@@ -17,6 +17,10 @@ namespace Storage {
 enum class SharedMediaType : signed char;
 } // namespace Storage
 
+namespace Data {
+class ForumTopic;
+} // namespace Data
+
 namespace Ui {
 class ScrollArea;
 struct ScrollToRequest;
@@ -38,6 +42,8 @@ class Memento final : public Window::SectionMemento {
 public:
 	explicit Memento(not_null<PeerData*> peer);
 	Memento(not_null<PeerData*> peer, Section section);
+	explicit Memento(not_null<Data::ForumTopic*> topic);
+	Memento(not_null<Data::ForumTopic*> topic, Section section);
 	Memento(Settings::Tag settings, Section section);
 	Memento(not_null<PollData*> poll, FullMsgId contextId);
 	explicit Memento(std::vector<std::shared_ptr<ContentMemento>> stack);
@@ -72,6 +78,9 @@ private:
 	static std::vector<std::shared_ptr<ContentMemento>> DefaultStack(
 		not_null<PeerData*> peer,
 		Section section);
+	static std::vector<std::shared_ptr<ContentMemento>> DefaultStack(
+		not_null<Data::ForumTopic*> topic,
+		Section section);
 	static std::vector<std::shared_ptr<ContentMemento>> DefaultStack(
 		Settings::Tag settings,
 		Section section);
@@ -82,6 +91,9 @@ private:
 	static std::shared_ptr<ContentMemento> DefaultContent(
 		not_null<PeerData*> peer,
 		Section section);
+	static std::shared_ptr<ContentMemento> DefaultContent(
+		not_null<Data::ForumTopic*> topic,
+		Section section);
 
 	std::vector<std::shared_ptr<ContentMemento>> _stack;
 

Telegram/SourceFiles/info/info_wrap_widget.cpp

@@ -541,10 +541,13 @@ void WrapWidget::showTopBarMenu(bool check) {
 			[=] { deleteAllDownloads(); },
 			&st::menuIconDelete);
 	} else if (const auto peer = key().peer()) {
+		const auto topic = key().topic();
 		Window::FillDialogsEntryMenu(
 			_controller->parentController(),
 			Dialogs::EntryState{
-				.key = peer->owner().history(peer),
+				.key = (topic
+					? Dialogs::Key{ topic }
+					: Dialogs::Key{ peer->owner().history(peer) }),
 				.section = Dialogs::EntryState::Section::Profile,
 			},
 			addAction);

Telegram/SourceFiles/info/media/info_media_widget.cpp

@@ -18,8 +18,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "lang/lang_keys.h"
 #include "styles/style_info.h"
 
-namespace Info {
-namespace Media {
+namespace Info::Media {
 
 std::optional<int> TypeToTabIndex(Type type) {
 	switch (type) {
@@ -61,6 +60,17 @@ Memento::Memento(not_null<PeerData*> peer, PeerId migratedPeerId, Type type)
 	}
 }
 
+Memento::Memento(not_null<Data::ForumTopic*> topic, Type type)
+: ContentMemento(topic)
+, _type(type) {
+	_searchState.query.type = type; // #TODO forum search
+	_searchState.query.peerId = peer()->id;
+	_searchState.query.migratedPeerId = migratedPeerId();
+	if (migratedPeerId()) {
+		_searchState.migratedList = Storage::SparseIdsList();
+	}
+}
+
 Section Memento::section() const {
 	return Section(_type);
 }
@@ -162,5 +172,4 @@ void Widget::restoreState(not_null<Memento*> memento) {
 	_inner->restoreState(memento);
 }
 
-} // namespace Media
-} // namespace Info
+} // namespace Info::Media

Telegram/SourceFiles/info/media/info_media_widget.h

@@ -7,13 +7,15 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
-#include <rpl/producer.h>
 #include "info/info_content_widget.h"
 #include "storage/storage_shared_media.h"
 #include "data/data_search_controller.h"
 
-namespace Info {
-namespace Media {
+namespace Data {
+class ForumTopic;
+} // namespace Data
+
+namespace Info::Media {
 
 using Type = Storage::SharedMediaType;
 
@@ -24,8 +26,9 @@ class InnerWidget;
 
 class Memento final : public ContentMemento {
 public:
-	Memento(not_null<Controller*> controller);
+	explicit Memento(not_null<Controller*> controller);
 	Memento(not_null<PeerData*> peer, PeerId migratedPeerId, Type type);
+	Memento(not_null<Data::ForumTopic*> peer, Type type);
 
 	using SearchState = Api::DelayedSearchController::SavedState;
 
@@ -120,5 +123,4 @@ private:
 
 };
 
-} // namespace Media
-} // namespace Info
+} // namespace Info::Media

Telegram/SourceFiles/info/profile/info_profile_cover.cpp

@@ -70,11 +70,7 @@ Cover::Cover(
 	QWidget *parent,
 	not_null<PeerData*> peer,
 	not_null<Window::SessionController*> controller)
-: Cover(parent, peer, controller, NameValue(
-	peer
-) | rpl::map([=](const TextWithEntities &name) {
-	return name.text;
-})) {
+: Cover(parent, peer, controller, NameValue(peer)) {
 }
 
 Cover::Cover(

Telegram/SourceFiles/info/profile/info_profile_emoji_status_panel.cpp

@@ -171,6 +171,14 @@ EmojiStatusPanel::EmojiStatusPanel() = default;
 
 EmojiStatusPanel::~EmojiStatusPanel() = default;
 
+void EmojiStatusPanel::setChooseFilter(Fn<bool(DocumentId)> filter) {
+	_chooseFilter = std::move(filter);
+}
+
+void EmojiStatusPanel::setChooseCallback(Fn<void(DocumentId)> callback) {
+	_chooseCallback = std::move(callback);
+}
+
 void EmojiStatusPanel::show(
 		not_null<Window::SessionController*> controller,
 		not_null<QWidget*> button,
@@ -278,32 +286,48 @@ void EmojiStatusPanel::create(
 		return Chosen{ .animation = data.messageSendingFrom };
 	});
 
-	const auto set = [=](Chosen chosen) {
+	const auto accept = [=](Chosen chosen) {
 		Expects(chosen.until != Selector::kPickCustomTimeId);
 
 		const auto owner = &controller->session().data();
 		startAnimation(owner, body, chosen.id, chosen.animation);
-		owner->emojiStatuses().set(chosen.id, chosen.until);
+		if (_chooseCallback) {
+			_chooseCallback(chosen.id);
+		} else {
+			owner->emojiStatuses().set(chosen.id, chosen.until);
+		}
 	};
 
 	rpl::merge(
 		std::move(statusChosen),
 		std::move(emojiChosen)
-	) | rpl::start_with_next([=](const Chosen chosen) {
-		if (chosen.id && !controller->session().premium()) {
-			ShowPremiumPreviewBox(controller, PremiumPreview::EmojiStatus);
-		} else if (chosen.until == Selector::kPickCustomTimeId) {
+	) | rpl::filter([=](const Chosen &chosen) {
+		return filter(controller, chosen.id);
+	}) | rpl::start_with_next([=](const Chosen &chosen) {
+		if (chosen.until == Selector::kPickCustomTimeId) {
 			_panel->hideAnimated();
 			controller->show(Box(PickUntilBox, [=](TimeId seconds) {
-				set({ chosen.id, base::unixtime::now() + seconds });
+				accept({ chosen.id, base::unixtime::now() + seconds });
 			}));
 		} else {
-			set(chosen);
+			accept(chosen);
 			_panel->hideAnimated();
 		}
 	}, _panel->lifetime());
 }
 
+bool EmojiStatusPanel::filter(
+		not_null<Window::SessionController*> controller,
+		DocumentId chosenId) const {
+	if (_chooseFilter) {
+		return _chooseFilter(chosenId);
+	} else if (chosenId && !controller->session().premium()) {
+		ShowPremiumPreviewBox(controller, PremiumPreview::EmojiStatus);
+		return false;
+	}
+	return true;
+}
+
 void EmojiStatusPanel::startAnimation(
 		not_null<Data::Session*> owner,
 		not_null<Ui::RpWidget*> body,

Telegram/SourceFiles/info/profile/info_profile_emoji_status_panel.h

@@ -39,6 +39,9 @@ public:
 	EmojiStatusPanel();
 	~EmojiStatusPanel();
 
+	void setChooseFilter(Fn<bool(DocumentId)> filter);
+	void setChooseCallback(Fn<void(DocumentId)> callback);
+
 	void show(
 		not_null<Window::SessionController*> controller,
 		not_null<QWidget*> button,
@@ -50,6 +53,9 @@ private:
 	class Animation;
 
 	void create(not_null<Window::SessionController*> controller);
+	[[nodiscard]] bool filter(
+		not_null<Window::SessionController*> controller,
+		DocumentId chosenId) const;
 
 	void startAnimation(
 		not_null<Data::Session*> owner,
@@ -58,6 +64,8 @@ private:
 		Ui::MessageSendingAnimationFrom from);
 
 	base::unique_qptr<ChatHelpers::TabbedPanel> _panel;
+	Fn<bool(DocumentId)> _chooseFilter;
+	Fn<void(DocumentId)> _chooseCallback;
 	QPointer<QWidget> _panelButton;
 	std::unique_ptr<Animation> _animation;
 	Data::CustomEmojiSizeTag _animationSizeTag = {};

Telegram/SourceFiles/info/profile/info_profile_inner_widget.cpp

@@ -51,6 +51,7 @@ InnerWidget::InnerWidget(
 , _controller(controller)
 , _peer(_controller->key().peer())
 , _migrated(_controller->migrated())
+, _topic(_controller->key().topic())
 , _content(setupContent(this)) {
 	_content->heightValue(
 	) | rpl::start_with_next([this](int height) {
@@ -67,15 +68,21 @@ object_ptr<Ui::RpWidget> InnerWidget::setupContent(
 	_cover = result->add(object_ptr<Cover>(
 		result,
 		_peer,
-		_controller->parentController()));
+		_controller->parentController(),
+		_topic ? TitleValue(_topic) : NameValue(_peer)));
 	_cover->showSection(
 	) | rpl::start_with_next([=](Section section) {
 		_controller->showSection(
 			std::make_shared<Info::Memento>(_peer, section));
 	}, _cover->lifetime());
 	_cover->setOnlineCount(rpl::single(0));
-	auto details = SetupDetails(_controller, parent, _peer);
-	result->add(std::move(details));
+	if (_topic) {
+		// #TODO forum
+		//result->add(setupSharedMedia(result.data()));
+		return result;
+	}
+
+	result->add(SetupDetails(_controller, parent, _peer));
 	result->add(setupSharedMedia(result.data()));
 	if (auto members = SetupChannelMembers(_controller, result.data(), _peer)) {
 		result->add(std::move(members));

Telegram/SourceFiles/info/profile/info_profile_inner_widget.h

@@ -10,7 +10,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/rp_widget.h"
 #include "base/object_ptr.h"
 
-#include <rpl/variable.h>
+namespace Data {
+class ForumTopic;
+} // namespace Data
 
 namespace Window {
 class SessionController;
@@ -65,6 +67,7 @@ private:
 	const not_null<Controller*> _controller;
 	const not_null<PeerData*> _peer;
 	PeerData * const _migrated = nullptr;
+	Data::ForumTopic * const _topic = nullptr;
 
 	Members *_members = nullptr;
 	Cover *_cover = nullptr;

Telegram/SourceFiles/info/profile/info_profile_values.cpp

@@ -25,6 +25,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_channel.h"
 #include "data/data_chat.h"
 #include "data/data_user.h"
+#include "data/data_forum_topic.h"
 #include "data/data_session.h"
 #include "data/data_premium_limits.h"
 #include "boxes/peers/edit_peer_permissions_box.h"
@@ -74,13 +75,15 @@ void StripExternalLinks(TextWithEntities &text) {
 
 } // namespace
 
-rpl::producer<TextWithEntities> NameValue(not_null<PeerData*> peer) {
+rpl::producer<QString> NameValue(not_null<PeerData*> peer) {
 	return peer->session().changes().peerFlagsValue(
 		peer,
 		UpdateFlag::Name
-	) | rpl::map([=] {
-		return peer->name();
-	}) | Ui::Text::ToWithEntities();
+	) | rpl::map([=] { return peer->name(); });
+}
+
+rpl::producer<QString> TitleValue(not_null<Data::ForumTopic*> topic) {
+	return rpl::single(topic->title()); // #TODO forum title changes
 }
 
 rpl::producer<TextWithEntities> PhoneValue(not_null<UserData*> user) {

Telegram/SourceFiles/info/profile/info_profile_values.h

@@ -14,6 +14,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 struct ChannelLocation;
 
+namespace Data {
+class ForumTopic;
+} // namespace Data
+
 namespace Main {
 class Session;
 } // namespace Main
@@ -28,8 +32,7 @@ namespace Storage {
 enum class SharedMediaType : signed char;
 } // namespace Storage
 
-namespace Info {
-namespace Profile {
+namespace Info::Profile {
 
 inline auto ToSingleLine() {
 	return rpl::map([](const QString &text) {
@@ -40,8 +43,9 @@ inline auto ToSingleLine() {
 rpl::producer<not_null<PeerData*>> MigratedOrMeValue(
 	not_null<PeerData*> peer);
 
-[[nodiscard]] rpl::producer<TextWithEntities> NameValue(
-	not_null<PeerData*> peer);
+[[nodiscard]] rpl::producer<QString> NameValue(not_null<PeerData*> peer);
+[[nodiscard]] rpl::producer<QString> TitleValue(
+	not_null<Data::ForumTopic*> topic);
 [[nodiscard]] rpl::producer<TextWithEntities> PhoneValue(
 	not_null<UserData*> user);
 [[nodiscard]] rpl::producer<TextWithEntities> PhoneOrHiddenValue(
@@ -95,5 +99,4 @@ enum class BadgeType;
 [[nodiscard]] rpl::producer<DocumentId> EmojiStatusIdValue(
 	not_null<PeerData*> peer);
 
-} // namespace Profile
-} // namespace Info
+} // namespace Info::Profile

Telegram/SourceFiles/info/profile/info_profile_widget.cpp

@@ -17,8 +17,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "lang/lang_keys.h"
 #include "info/info_controller.h"
 
-namespace Info {
-namespace Profile {
+namespace Info::Profile {
 
 Memento::Memento(not_null<Controller*> controller)
 : Memento(
@@ -30,6 +29,10 @@ Memento::Memento(not_null<PeerData*> peer, PeerId migratedPeerId)
 : ContentMemento(peer, migratedPeerId) {
 }
 
+Memento::Memento(not_null<Data::ForumTopic*> topic)
+: ContentMemento(topic) {
+}
+
 Section Memento::section() const {
 	return Section(Section::Type::Profile);
 }
@@ -38,9 +41,7 @@ object_ptr<ContentWidget> Memento::createWidget(
 		QWidget *parent,
 		not_null<Controller*> controller,
 		const QRect &geometry) {
-	auto result = object_ptr<Widget>(
-		parent,
-		controller);
+	auto result = object_ptr<Widget>(parent, controller);
 	result->setInternalState(geometry, this);
 	return result;
 }
@@ -55,9 +56,7 @@ std::unique_ptr<MembersState> Memento::membersState() {
 
 Memento::~Memento() = default;
 
-Widget::Widget(
-	QWidget *parent,
-	not_null<Controller*> controller)
+Widget::Widget(QWidget *parent, not_null<Controller*> controller)
 : ContentWidget(parent, controller) {
 	controller->setSearchEnabledByContent(false);
 
@@ -81,6 +80,9 @@ void Widget::setInnerFocus() {
 }
 
 rpl::producer<QString> Widget::title() {
+	if (const auto topic = controller()->key().topic()) {
+		return rpl::single(u"Topic Info"_q); // #TODO forum lang
+	}
 	const auto peer = controller()->key().peer();
 	if (const auto user = peer->asUser()) {
 		return (user->isBot() && !user->isSupport())
@@ -132,5 +134,4 @@ void Widget::restoreState(not_null<Memento*> memento) {
 	scrollTopRestore(memento->scrollTop());
 }
 
-} // namespace Profile
-} // namespace Info
+} // namespace Info::Profile

Telegram/SourceFiles/info/profile/info_profile_widget.h

@@ -7,19 +7,22 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
-#include <rpl/producer.h>
 #include "info/info_content_widget.h"
 
-namespace Info {
-namespace Profile {
+namespace Data {
+class ForumTopic;
+} // namespace Data
+
+namespace Info::Profile {
 
 class InnerWidget;
 struct MembersState;
 
 class Memento final : public ContentMemento {
 public:
-	Memento(not_null<Controller*> controller);
+	explicit Memento(not_null<Controller*> controller);
 	Memento(not_null<PeerData*> peer, PeerId migratedPeerId);
+	explicit Memento(not_null<Data::ForumTopic*> topic);
 
 	object_ptr<ContentWidget> createWidget(
 		QWidget *parent,
@@ -40,9 +43,7 @@ private:
 
 class Widget final : public ContentWidget {
 public:
-	Widget(
-		QWidget *parent,
-		not_null<Controller*> controller);
+	Widget(QWidget *parent, not_null<Controller*> controller);
 
 	bool showInternal(
 		not_null<ContentMemento*> memento) override;
@@ -65,5 +66,4 @@ private:
 
 };
 
-} // namespace Profile
-} // namespace Info
+} // namespace Info::Profile