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Telegram/SourceFiles/info/common_groups/info_common_groups_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 <rpl/producer.h>
+#include "info/info_content_widget.h"
+
+struct PeerListState;
+
+namespace Ui {
+class SearchFieldController;
+} // namespace Ui
+
+namespace Info {
+namespace CommonGroups {
+
+class InnerWidget;
+
+class Memento final : public ContentMemento {
+public:
+	explicit Memento(not_null<UserData*> user);
+
+	object_ptr<ContentWidget> createWidget(
+		QWidget *parent,
+		not_null<Controller*> controller,
+		const QRect &geometry) override;
+
+	Section section() const override;
+
+	not_null<UserData*> user() const;
+
+	void setListState(std::unique_ptr<PeerListState> state);
+	std::unique_ptr<PeerListState> listState();
+
+	~Memento();
+
+private:
+	std::unique_ptr<PeerListState> _listState;
+
+};
+
+class Widget final : public ContentWidget {
+public:
+	Widget(
+		QWidget *parent,
+		not_null<Controller*> controller,
+		not_null<UserData*> user);
+
+	not_null<UserData*> user() const;
+
+	bool showInternal(
+		not_null<ContentMemento*> memento) override;
+
+	void setInternalState(
+		const QRect &geometry,
+		not_null<Memento*> memento);
+
+	rpl::producer<QString> title() override;
+
+private:
+	void saveState(not_null<Memento*> memento);
+	void restoreState(not_null<Memento*> memento);
+
+	std::shared_ptr<ContentMemento> doCreateMemento() override;
+
+	InnerWidget *_inner = nullptr;
+
+};
+
+} // namespace CommonGroups
+} // namespace Info
+