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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_SYNC_DRIVER_BACKUP_ROLLBACK_CONTROLLER_H_
#define COMPONENTS_SYNC_DRIVER_BACKUP_ROLLBACK_CONTROLLER_H_
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
class SigninManagerWrapper;
namespace sync_driver {
class SyncPrefs;
// BackupRollbackController takes two closures for starting backup/rollback
// process. It calls the closures according to user's signin status or
// received rollback command. Backup is not run when user signed in, even when
// sync is not running.
class BackupRollbackController {
public:
BackupRollbackController(sync_driver::SyncPrefs* sync_prefs,
const SigninManagerWrapper* signin,
base::Closure start_backup,
base::Closure start_rollback);
~BackupRollbackController();
// Post task to run |start_backup_| if conditions are met. Return true if
// task is posted, false otherwise.
bool StartBackup();
// Post task to run |start_rollback_| if conditions are met. Return true if
// task is posted, false otherwise.
bool StartRollback();
// Update rollback preference to indicate rollback is needed.
void OnRollbackReceived();
// Update rollback preference to indicate rollback is finished.
void OnRollbackDone();
// Return true if platform supports backup and backup is enabled.
static bool IsBackupEnabled();
private:
sync_driver::SyncPrefs* sync_prefs_;
// Use SigninManagerWrapper instead of SigninManagerBase so that
// supervised users are treated like regular signed-in users.
const SigninManagerWrapper* signin_;
base::Closure start_backup_;
base::Closure start_rollback_;
DISALLOW_COPY_AND_ASSIGN(BackupRollbackController);
};
} // namespace sync_driver
#endif // COMPONENTS_SYNC_DRIVER_BACKUP_ROLLBACK_CONTROLLER_H_
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