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// Copyright 2013 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_DRIVE_FILE_SYSTEM_TOUCH_OPERATION_H_
#define COMPONENTS_DRIVE_FILE_SYSTEM_TOUCH_OPERATION_H_
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread_checker.h"
#include "components/drive/file_errors.h"
namespace base {
class FilePath;
class SequencedTaskRunner;
class Time;
} // namespace base
namespace drive {
namespace internal {
class ResourceMetadata;
} // namespace internal
class ResourceEntry;
namespace file_system {
class OperationDelegate;
class TouchOperation {
public:
TouchOperation(base::SequencedTaskRunner* blocking_task_runner,
OperationDelegate* delegate,
internal::ResourceMetadata* metadata);
~TouchOperation();
// Touches the file by updating last access time and last modified time.
// Upon completion, invokes |callback|.
// |last_access_time|, |last_modified_time| and |callback| must not be null.
void TouchFile(const base::FilePath& file_path,
const base::Time& last_access_time,
const base::Time& last_modified_time,
const FileOperationCallback& callback);
private:
// Part of TouchFile(). Runs after updating the local state.
void TouchFileAfterUpdateLocalState(const base::FilePath& file_path,
const FileOperationCallback& callback,
const ResourceEntry* entry,
FileError error);
scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
OperationDelegate* delegate_;
internal::ResourceMetadata* metadata_;
base::ThreadChecker thread_checker_;
// Note: This should remain the last member so it'll be destroyed and
// invalidate the weak pointers before any other members are destroyed.
base::WeakPtrFactory<TouchOperation> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(TouchOperation);
};
} // namespace file_system
} // namespace drive
#endif // COMPONENTS_DRIVE_FILE_SYSTEM_TOUCH_OPERATION_H_
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