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Telegram/SourceFiles/info/profile/info_profile_widget.h

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "info/info_content_widget.h"
+#include "ui/effects/animations.h"
+
+namespace Data {
+class ForumTopic;
+} // namespace Data
+
+namespace Info::Profile {
+
+class InnerWidget;
+struct MembersState;
+
+struct GroupReactionOrigin {
+	not_null<PeerData*> group;
+	MsgId messageId = 0;
+};
+
+struct Origin {
+	std::variant<v::null_t, GroupReactionOrigin> data;
+};
+
+class Memento final : public ContentMemento {
+public:
+	explicit Memento(not_null<Controller*> controller);
+	Memento(
+		not_null<PeerData*> peer,
+		PeerId migratedPeerId,
+		Origin origin = { v::null });
+	explicit Memento(not_null<Data::ForumTopic*> topic);
+	explicit Memento(not_null<Data::SavedSublist*> sublist);
+
+	object_ptr<ContentWidget> createWidget(
+		QWidget *parent,
+		not_null<Controller*> controller,
+		const QRect &geometry) override;
+
+	Section section() const override;
+
+	[[nodiscard]] Origin origin() const {
+		return _origin;
+	}
+
+	void setMembersState(std::unique_ptr<MembersState> state);
+	std::unique_ptr<MembersState> membersState();
+
+	~Memento();
+
+private:
+	Memento(
+		not_null<PeerData*> peer,
+		Data::ForumTopic *topic,
+		Data::SavedSublist *sublist,
+		PeerId migratedPeerId,
+		Origin origin);
+
+	std::unique_ptr<MembersState> _membersState;
+	Origin _origin;
+
+};
+
+class Widget final : public ContentWidget {
+public:
+	Widget(QWidget *parent, not_null<Controller*> controller, Origin origin);
+
+	bool showInternal(
+		not_null<ContentMemento*> memento) override;
+
+	void setInternalState(
+		const QRect &geometry,
+		not_null<Memento*> memento);
+
+	void setInnerFocus() override;
+	void enableBackButton() override;
+	void showFinished() override;
+
+	rpl::producer<QString> title() override;
+	rpl::producer<Dialogs::Stories::Content> titleStories() override;
+
+private:
+	void saveState(not_null<Memento*> memento);
+	void restoreState(not_null<Memento*> memento);
+
+	std::shared_ptr<ContentMemento> doCreateMemento() override;
+
+	FlexibleScrollData _flexibleScroll;
+	InnerWidget *_inner = nullptr;
+	base::weak_qptr<Ui::RpWidget> _pinnedToTop;
+	base::weak_qptr<Ui::RpWidget> _pinnedToBottom;
+	std::unique_ptr<FlexibleScrollHelper> _flexibleScrollHelper;
+
+};
+
+} // namespace Info::Profile