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Telegram/SourceFiles/data/components/recent_peers.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 "ui/userpic_view.h"
+
+namespace Main {
+class Session;
+} // namespace Main
+
+namespace Data {
+
+class Thread;
+
+class RecentPeers final {
+public:
+	explicit RecentPeers(not_null<Main::Session*> session);
+	~RecentPeers();
+
+	[[nodiscard]] const std::vector<not_null<PeerData*>> &list() const;
+	[[nodiscard]] rpl::producer<> updates() const;
+
+	void remove(not_null<PeerData*> peer);
+	void bump(not_null<PeerData*> peer);
+	void clear();
+
+	[[nodiscard]] QByteArray serialize() const;
+	void applyLocal(QByteArray serialized);
+
+	[[nodiscard]] auto collectChatOpenHistory() const
+		-> std::vector<not_null<Thread*>>;
+	void chatOpenPush(not_null<Thread*> thread);
+	void chatOpenRemove(not_null<Thread*> thread);
+	void chatOpenKeepUserpics(
+		base::flat_map<not_null<PeerData*>, Ui::PeerUserpicView> userpics);
+
+private:
+	const not_null<Main::Session*> _session;
+
+	std::vector<not_null<PeerData*>> _list;
+	std::vector<not_null<Thread*>> _opens;
+	base::flat_map<
+		not_null<PeerData*>,
+		Ui::PeerUserpicView> _chatOpenUserpicsCache;
+
+	rpl::event_stream<> _updates;
+
+};
+
+} // namespace Data