src/chrome/browser/chromeos/drive/fileapi/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_DRIVE_FILEAPI_FILE_SYSTEM_BACKEND_DELEGATE_H_
   6 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_FILE_SYSTEM_BACKEND_DELEGATE_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "chrome/browser/chromeos/fileapi/file_system_backend_delegate.h"
  11
  12 namespace storage {
  13 class AsyncFileUtil;
  14 class FileSystemContext;
  15 class FileStreamReader;
  16 class FileSystemURL;
  17 class FileStreamWriter;
  18 class WatcherManager;
  19 }  // namespace storage
  20
  21 namespace drive {
  22
  23 // Delegate implementation of the some methods in chromeos::FileSystemBackend
  24 // for Drive file system.
  25 class FileSystemBackendDelegate : public chromeos::FileSystemBackendDelegate {
  26  public:
  27   FileSystemBackendDelegate();
  28   virtual ~FileSystemBackendDelegate();
  29
  30   // FileSystemBackend::Delegate overrides.
  31   virtual storage::AsyncFileUtil* GetAsyncFileUtil(
  32       storage::FileSystemType type) override;
  33   virtual scoped_ptr<storage::FileStreamReader> CreateFileStreamReader(
  34       const storage::FileSystemURL& url,
  35       int64 offset,
  36       int64 max_bytes_to_read,
  37       const base::Time& expected_modification_time,
  38       storage::FileSystemContext* context) override;
  39   virtual scoped_ptr<storage::FileStreamWriter> CreateFileStreamWriter(
  40       const storage::FileSystemURL& url,
  41       int64 offset,
  42       storage::FileSystemContext* context) override;
  43   virtual storage::WatcherManager* GetWatcherManager(
  44       storage::FileSystemType type) override;
  45   virtual void GetRedirectURLForContents(
  46       const storage::FileSystemURL& url,
  47       const storage::URLCallback& callback) override;
  48
  49  private:
  50   scoped_ptr<storage::AsyncFileUtil> async_file_util_;
  51
  52   DISALLOW_COPY_AND_ASSIGN(FileSystemBackendDelegate);
  53 };
  54
  55 }  // namespace drive
  56
  57 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_FILE_SYSTEM_BACKEND_DELEGATE_H_