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// Copyright 2021 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_OS_INSTALL_OS_INSTALL_CLIENT_H_
#define CHROMEOS_ASH_COMPONENTS_DBUS_OS_INSTALL_OS_INSTALL_CLIENT_H_
#include <string>
#include "base/component_export.h"
#include "base/observer_list_types.h"
namespace dbus {
class Bus;
}
namespace ash {
// OsInstallClient is used to communicate with the
// org.chromium.OsInstallService system service. The browser uses this
// service to install the OS from a USB device to disk.
class COMPONENT_EXPORT(OS_INSTALL) OsInstallClient {
public:
// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
enum class Status {
InProgress = 0,
Succeeded = 1,
Failed = 2,
NoDestinationDeviceFound = 3,
kMaxValue = NoDestinationDeviceFound,
};
// Interface for observing changes from the OS install service.
class Observer : public base::CheckedObserver {
public:
// Called when the installation status changes.
virtual void StatusChanged(Status status,
const std::string& service_log) = 0;
};
class TestInterface {
public:
virtual void UpdateStatus(Status status) = 0;
};
OsInstallClient(const OsInstallClient&) = delete;
OsInstallClient& operator=(const OsInstallClient&) = delete;
// 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.
static void Shutdown();
// Returns the global instance which may be null if not initialized.
static OsInstallClient* Get();
// Adds and removes the observer.
virtual void AddObserver(Observer* observer) = 0;
virtual void RemoveObserver(Observer* observer) = 0;
// Returns true if this object has the given observer.
virtual bool HasObserver(const Observer* observer) const = 0;
virtual TestInterface* GetTestInterface() = 0;
// Start the installation process. Status updates can be monitored
// by adding an Observer.
virtual void StartOsInstall() = 0;
protected:
OsInstallClient();
virtual ~OsInstallClient();
};
} // namespace ash
#endif // CHROMEOS_ASH_COMPONENTS_DBUS_OS_INSTALL_OS_INSTALL_CLIENT_H_
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