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Telegram/SourceFiles/api/api_views.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 "mtproto/sender.h"
+#include "base/timer.h"
+
+class ApiWrap;
+class PeerData;
+
+namespace Main {
+class Session;
+} // namespace Main
+
+namespace Api {
+
+class ViewsManager final {
+public:
+	explicit ViewsManager(not_null<ApiWrap*> api);
+
+	void scheduleIncrement(not_null<HistoryItem*> item);
+	void removeIncremented(not_null<PeerData*> peer);
+
+	void pollExtendedMedia(not_null<HistoryItem*> item, bool force = false);
+
+private:
+	struct PollExtendedMediaRequest {
+		crl::time when = 0;
+		mtpRequestId id = 0;
+		base::flat_set<MsgId> ids;
+		base::flat_set<MsgId> sent;
+		bool forced = false;
+	};
+
+	void viewsIncrement();
+	void sendPollRequests();
+	void sendPollRequests(
+		const base::flat_map<
+			not_null<PeerData*>,
+			QVector<MTPint>> &prepared);
+
+	void done(
+		QVector<MTPint> ids,
+		const MTPmessages_MessageViews &result,
+		mtpRequestId requestId);
+	void fail(const MTP::Error &error, mtpRequestId requestId);
+
+	const not_null<Main::Session*> _session;
+	MTP::Sender _api;
+
+	base::flat_map<not_null<PeerData*>, base::flat_set<MsgId>> _incremented;
+	base::flat_map<not_null<PeerData*>, base::flat_set<MsgId>> _toIncrement;
+	base::flat_map<not_null<PeerData*>, mtpRequestId> _incrementRequests;
+	base::flat_map<mtpRequestId, not_null<PeerData*>> _incrementByRequest;
+	base::Timer _incrementTimer;
+
+	base::flat_map<
+		not_null<PeerData*>,
+		PollExtendedMediaRequest> _pollRequests;
+	base::Timer _pollTimer;
+
+};
+
+} // namespace Api