chrome/browser/chromeos/fileapi/mtp_file_system_backend_delegate.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_CHROMEOS_FILEAPI_MTP_FILE_SYSTEM_BACKEND_DELEGATE_H_
   6 #define CHROME_BROWSER_CHROMEOS_FILEAPI_MTP_FILE_SYSTEM_BACKEND_DELEGATE_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "chrome/browser/chromeos/fileapi/file_system_backend_delegate.h"
  10
  11 namespace base {
  12 class FilePath;
  13 }  // namespace base
  14
  15 namespace storage {
  16 class AsyncFileUtil;
  17 class FileSystemContext;
  18 class FileStreamReader;
  19 class FileSystemURL;
  20 class FileStreamWriter;
  21 class WatcherManager;
  22 }  // namespace storage
  23
  24 class DeviceMediaAsyncFileUtil;
  25
  26 namespace chromeos {
  27
  28 // This is delegate interface to inject the MTP device file system in Chrome OS
  29 // file API backend.
  30 class MTPFileSystemBackendDelegate : public FileSystemBackendDelegate {
  31  public:
  32   explicit MTPFileSystemBackendDelegate(
  33       const base::FilePath& storage_partition_path);
  34   ~MTPFileSystemBackendDelegate() override;
  35
  36   // FileSystemBackendDelegate overrides.
  37   storage::AsyncFileUtil* GetAsyncFileUtil(
  38       storage::FileSystemType type) override;
  39   scoped_ptr<storage::FileStreamReader> CreateFileStreamReader(
  40       const storage::FileSystemURL& url,
  41       int64 offset,
  42       int64 max_bytes_to_read,
  43       const base::Time& expected_modification_time,
  44       storage::FileSystemContext* context) override;
  45   scoped_ptr<storage::FileStreamWriter> CreateFileStreamWriter(
  46       const storage::FileSystemURL& url,
  47       int64 offset,
  48       storage::FileSystemContext* context) override;
  49   storage::WatcherManager* GetWatcherManager(
  50       storage::FileSystemType type) override;
  51   void GetRedirectURLForContents(const storage::FileSystemURL& url,
  52                                  const storage::URLCallback& callback) override;
  53
  54  private:
  55   scoped_ptr<DeviceMediaAsyncFileUtil> device_media_async_file_util_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(MTPFileSystemBackendDelegate);
  58 };
  59
  60 }  // namespace chromeos
  61
  62 #endif  // CHROME_BROWSER_CHROMEOS_FILEAPI_MTP_FILE_SYSTEM_BACKEND_DELEGATE_H_