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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_DOWNLOAD_INTERNAL_BACKGROUND_SERVICE_CONTROLLER_H_
#define COMPONENTS_DOWNLOAD_INTERNAL_BACKGROUND_SERVICE_CONTROLLER_H_
#include <string>
#include "components/download/internal/background_service/initializable_background_download_service.h"
#include "components/download/public/background_service/clients.h"
namespace download {
// The core Controller responsible for gluing various BackgroundDownloadService
// components together to manage the active downloads.
class Controller : public InitializableBackgroundDownloadService {
public:
enum class State {
// The Controller has been created but has not been initialized yet. It
// cannot be used.
CREATED = 1,
// The Controller has been created and Initialize() has been called but has
// not yet finished. It cannot be used.
INITIALIZING = 2,
// The Controller has been created and initialized. It can be used.
READY = 3,
// The Controller failed to initialize and is in the process of recovering.
// It cannot be used.
RECOVERING = 4,
// The Controller was unable to recover and is unusable this session.
UNAVAILABLE = 5,
};
Controller() = default;
Controller(const Controller&) = delete;
Controller& operator=(const Controller&) = delete;
~Controller() override = default;
// Returns the status of Controller.
virtual State GetState() = 0;
// Exposes the owner of the download request for |guid| if one exists.
// Otherwise returns DownloadClient::INVALID for an unowned entry.
virtual DownloadClient GetOwnerOfDownload(const std::string& guid) = 0;
};
} // namespace download
#endif // COMPONENTS_DOWNLOAD_INTERNAL_BACKGROUND_SERVICE_CONTROLLER_H_
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