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// Copyright 2014 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_SYNC_DEVICE_INFO_LOCAL_DEVICE_INFO_PROVIDER_H_
#define COMPONENTS_SYNC_DEVICE_INFO_LOCAL_DEVICE_INFO_PROVIDER_H_
#include <memory>
#include <string>
#include "base/callback_list.h"
#include "base/time/time.h"
#include "components/sync/base/data_type.h"
#include "components/version_info/channel.h"
namespace syncer {
class DeviceInfo;
// Interface for providing sync specific information about the
// local device.
class LocalDeviceInfoProvider {
public:
virtual ~LocalDeviceInfoProvider() = default;
virtual version_info::Channel GetChannel() const = 0;
// Returns sync's representation of the local device info, or nullptr if the
// device info is unavailable (e.g. Initialize() hasn't been called). The
// returned object is fully owned by LocalDeviceInfoProvider; it must not be
// freed by the caller and should not be stored.
virtual const DeviceInfo* GetLocalDeviceInfo() const = 0;
// Registers a callback to be called when local device info becomes available.
// The callback will remain registered until the returned subscription is
// destroyed, which must occur before the CallbackList is destroyed.
[[nodiscard]] virtual base::CallbackListSubscription
RegisterOnInitializedCallback(const base::RepeatingClosure& callback) = 0;
};
class MutableLocalDeviceInfoProvider : public LocalDeviceInfoProvider {
public:
// Initialize initializes the LocalDeviceInfoProvider using the given values.
// The |device_info_restored_from_store| argument contains a previous
// DeviceInfo loaded from the store and may be nullptr if unavailable. If
// provided it is only used as a fallback and the provided arguments, and data
// from the DeviceInfoSyncClient, take precedence.
virtual void Initialize(
const std::string& cache_guid,
const std::string& client_name,
const std::string& manufacturer_name,
const std::string& model_name,
const std::string& full_hardware_class,
const DeviceInfo* device_info_restored_from_store) = 0;
virtual void Clear() = 0;
// Updates the local device's client name. Initialize() must be called before
// calling this function.
virtual void UpdateClientName(const std::string& client_name) = 0;
virtual void UpdateRecentSignInTime(base::Time time) = 0;
};
} // namespace syncer
#endif // COMPONENTS_SYNC_DEVICE_INFO_LOCAL_DEVICE_INFO_PROVIDER_H_
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