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Telegram/SourceFiles/data/data_forum_icons.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 "base/timer.h"
+
+namespace Main {
+class Session;
+} // namespace Main
+
+namespace Data {
+
+class DocumentMedia;
+class Session;
+class Forum;
+
+class ForumIcons final {
+public:
+	explicit ForumIcons(not_null<Session*> owner);
+	~ForumIcons();
+
+	[[nodiscard]] Session &owner() const {
+		return *_owner;
+	}
+	[[nodiscard]] Main::Session &session() const;
+
+	void refreshDefault();
+	void requestDefaultIfUnknown();
+
+	[[nodiscard]] const std::vector<DocumentId> &list() const;
+
+	[[nodiscard]] rpl::producer<> defaultUpdates() const;
+
+	void scheduleUserpicsReset(not_null<Forum*> forum);
+	void clearUserpicsReset(not_null<Forum*> forum);
+
+private:
+	void requestDefault();
+	void resetUserpics();
+	void resetUserpicsFor(not_null<Forum*> forum);
+
+	void updateDefault(const MTPDmessages_stickerSet &data);
+
+	const not_null<Session*> _owner;
+
+	std::vector<DocumentId> _default;
+	rpl::event_stream<> _defaultUpdated;
+
+	mtpRequestId _defaultRequestId = 0;
+
+	base::flat_map<not_null<Forum*>, crl::time> _resetUserpicsWhen;
+	base::Timer _resetUserpicsTimer;
+
+	rpl::lifetime _lifetime;
+
+};
+
+} // namespace Data