chrome/browser/chromeos/file_system_provider/fileapi/provider_async_file_util.h

// 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 CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FILEAPI_PROVIDER_ASYNC_FILE_UTIL_H_
#define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FILEAPI_PROVIDER_ASYNC_FILE_UTIL_H_

#include "base/basictypes.h"
#include "base/callback.h"
#include "storage/browser/fileapi/async_file_util.h"

namespace chromeos {
namespace file_system_provider {

class FileSystemInterface;

// TODO(mtomasz): Remove this namespace.
namespace internal {

// The implementation of storage::AsyncFileUtil for provided file systems. It is
// created one per Chrome process. It is responsible for routing calls to the
// correct profile, and then to the correct profided file system.
//
// This class should be called AsyncFileUtil, without the Provided prefix. This
// is impossible, though because of GYP limitations. There must not be two files
// with the same name in a Chromium tree.
// See: https://code.google.com/p/gyp/issues/detail?id=384
//
// All of the methods should be called on the IO thread.
class ProviderAsyncFileUtil : public storage::AsyncFileUtil {
 public:
  ProviderAsyncFileUtil();
  virtual ~ProviderAsyncFileUtil();

  // storage::AsyncFileUtil overrides.
  virtual void CreateOrOpen(
      scoped_ptr<storage::FileSystemOperationContext> context,
      const storage::FileSystemURL& url,
      int file_flags,
      const CreateOrOpenCallback& callback) override;
  virtual void EnsureFileExists(
      scoped_ptr<storage::FileSystemOperationContext> context,
      const storage::FileSystemURL& url,
      const EnsureFileExistsCallback& callback) override;
  virtual void CreateDirectory(
      scoped_ptr<storage::FileSystemOperationContext> context,
      const storage::FileSystemURL& url,
      bool exclusive,
      bool recursive,
      const StatusCallback& callback) override;
  virtual void GetFileInfo(
      scoped_ptr<storage::FileSystemOperationContext> context,
      const storage::FileSystemURL& url,
      const GetFileInfoCallback& callback) override;
  virtual void ReadDirectory(
      scoped_ptr<storage::FileSystemOperationContext> context,
      const storage::FileSystemURL& url,
      const ReadDirectoryCallback& callback) override;
  virtual void Touch(scoped_ptr<storage::FileSystemOperationContext> context,
                     const storage::FileSystemURL& url,
                     const base::Time& last_access_time,
                     const base::Time& last_modified_time,
                     const StatusCallback& callback) override;
  virtual void Truncate(scoped_ptr<storage::FileSystemOperationContext> context,
                        const storage::FileSystemURL& url,
                        int64 length,
                        const StatusCallback& callback) override;
  virtual void CopyFileLocal(
      scoped_ptr<storage::FileSystemOperationContext> context,
      const storage::FileSystemURL& src_url,
      const storage::FileSystemURL& dest_url,
      CopyOrMoveOption option,
      const CopyFileProgressCallback& progress_callback,
      const StatusCallback& callback) override;
  virtual void MoveFileLocal(
      scoped_ptr<storage::FileSystemOperationContext> context,
      const storage::FileSystemURL& src_url,
      const storage::FileSystemURL& dest_url,
      CopyOrMoveOption option,
      const StatusCallback& callback) override;
  virtual void CopyInForeignFile(
      scoped_ptr<storage::FileSystemOperationContext> context,
      const base::FilePath& src_file_path,
      const storage::FileSystemURL& dest_url,
      const StatusCallback& callback) override;
  virtual void DeleteFile(
      scoped_ptr<storage::FileSystemOperationContext> context,
      const storage::FileSystemURL& url,
      const StatusCallback& callback) override;
  virtual void DeleteDirectory(
      scoped_ptr<storage::FileSystemOperationContext> context,
      const storage::FileSystemURL& url,
      const StatusCallback& callback) override;
  virtual void DeleteRecursively(
      scoped_ptr<storage::FileSystemOperationContext> context,
      const storage::FileSystemURL& url,
      const StatusCallback& callback) override;
  virtual void CreateSnapshotFile(
      scoped_ptr<storage::FileSystemOperationContext> context,
      const storage::FileSystemURL& url,
      const CreateSnapshotFileCallback& callback) override;

 private:
  DISALLOW_COPY_AND_ASSIGN(ProviderAsyncFileUtil);
};

}  // namespace internal
}  // namespace file_system_provider
}  // namespace chromeos

#endif  // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FILEAPI_PROVIDER_ASYNC_FILE_UTIL_H_