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 #include "chrome/browser/chromeos/fileapi/mtp_watcher_manager.h"
  11
  12 namespace base {
  13 class FilePath;
  14 }  // namespace base
  15
  16 namespace storage {
  17 class AsyncFileUtil;
  18 class FileSystemContext;
  19 class FileStreamReader;
  20 class FileSystemURL;
  21 class FileStreamWriter;
  22 class WatcherManager;
  23 }  // namespace storage
  24
  25 class DeviceMediaAsyncFileUtil;
  26
  27 namespace chromeos {
  28
  29 // This is delegate interface to inject the MTP device file system in Chrome OS
  30 // file API backend.
  31 class MTPFileSystemBackendDelegate : public FileSystemBackendDelegate {
  32  public:
  33   explicit MTPFileSystemBackendDelegate(
  34       const base::FilePath& storage_partition_path);
  35   ~MTPFileSystemBackendDelegate() override;
  36
  37   // FileSystemBackendDelegate overrides.
  38   storage::AsyncFileUtil* GetAsyncFileUtil(
  39       storage::FileSystemType type) override;
  40   scoped_ptr<storage::FileStreamReader> CreateFileStreamReader(
  41       const storage::FileSystemURL& url,
  42       int64 offset,
  43       int64 max_bytes_to_read,
  44       const base::Time& expected_modification_time,
  45       storage::FileSystemContext* context) override;
  46   scoped_ptr<storage::FileStreamWriter> CreateFileStreamWriter(
  47       const storage::FileSystemURL& url,
  48       int64 offset,
  49       storage::FileSystemContext* context) override;
  50   storage::WatcherManager* GetWatcherManager(
  51       storage::FileSystemType type) override;
  52   void GetRedirectURLForContents(const storage::FileSystemURL& url,
  53                                  const storage::URLCallback& callback) override;
  54
  55  private:
  56   scoped_ptr<DeviceMediaAsyncFileUtil> device_media_async_file_util_;
  57   scoped_ptr<MTPWatcherManager> mtp_watcher_manager_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(MTPFileSystemBackendDelegate);
  60 };
  61
  62 }  // namespace chromeos
  63
  64 #endif  // CHROME_BROWSER_CHROMEOS_FILEAPI_MTP_FILE_SYSTEM_BACKEND_DELEGATE_H_