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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_COMPONENTS_DBUS_HAMMERD_HAMMERD_CLIENT_H_
#define CHROMEOS_ASH_COMPONENTS_DBUS_HAMMERD_HAMMERD_CLIENT_H_
#include <stdint.h>
#include <memory>
#include <vector>
#include "base/component_export.h"
namespace dbus {
class Bus;
}
namespace ash {
// Client for hammerd service - the service that manages pairing and updates for
// physically connected bases of detachable devices (hammers). The client
// listens for dbus signals related to:
// * the connected base firmware updating state
// * the connected base pairing events.
// The client forwards the received signals to its observers (together with any
// data extracted from the signal object).
class COMPONENT_EXPORT(HAMMERD) HammerdClient {
public:
class Observer {
public:
virtual ~Observer() {}
// Base firmware requires an update.
virtual void BaseFirmwareUpdateNeeded() = 0;
// Base firmware has started updating - BaseFirmwareUpdateCompleted() is
// expected to be dispatched when the update completes.
virtual void BaseFirmwareUpdateStarted() = 0;
// Base firmware update has completed successfully.
virtual void BaseFirmwareUpdateSucceeded() = 0;
// Base firmware update has failed.
virtual void BaseFirmwareUpdateFailed() = 0;
// A base has been attached, and it was successfully authenticated.
// |base_id| - identifies the authenticated base.
virtual void PairChallengeSucceeded(
const std::vector<uint8_t>& base_id) = 0;
// A base has been attached, but was not successfully authenticated.
virtual void PairChallengeFailed() = 0;
// An invalid base has been connected.
virtual void InvalidBaseConnected() = 0;
};
HammerdClient();
virtual ~HammerdClient();
// Creates and initializes the global instance. |bus| must not be null.
static void Initialize(dbus::Bus* bus);
// Creates and initializes a fake global instance if not already created.
static void InitializeFake();
// Destroys the global instance which must have been initialized.
static void Shutdown();
// Returns the global instance if initialized. May return null.
static HammerdClient* Get();
virtual void AddObserver(Observer* observer) = 0;
virtual void RemoveObserver(Observer* observer) = 0;
};
} // namespace ash
#endif // CHROMEOS_ASH_COMPONENTS_DBUS_HAMMERD_HAMMERD_CLIENT_H_
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