chrome/browser/media_galleries/fileapi/media_file_system_backend.h

   1 // Copyright (c) 2013 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_MEDIA_GALLERIES_FILEAPI_MEDIA_FILE_SYSTEM_BACKEND_H_
   6 #define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_MEDIA_FILE_SYSTEM_BACKEND_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "webkit/browser/fileapi/file_system_backend.h"
  11
  12 namespace base {
  13 class SequencedTaskRunner;
  14 }
  15
  16 class MediaPathFilter;
  17
  18 class DeviceMediaAsyncFileUtil;
  19
  20 class MediaFileSystemBackend : public fileapi::FileSystemBackend {
  21  public:
  22   static const char kMediaTaskRunnerName[];
  23
  24   MediaFileSystemBackend(
  25       const base::FilePath& profile_path,
  26       base::SequencedTaskRunner* media_task_runner);
  27   virtual ~MediaFileSystemBackend();
  28
  29   static bool CurrentlyOnMediaTaskRunnerThread();
  30   static scoped_refptr<base::SequencedTaskRunner> MediaTaskRunner();
  31
  32   // FileSystemBackend implementation.
  33   virtual bool CanHandleType(fileapi::FileSystemType type) const OVERRIDE;
  34   virtual void Initialize(fileapi::FileSystemContext* context) OVERRIDE;
  35   virtual void OpenFileSystem(
  36       const GURL& origin_url,
  37       fileapi::FileSystemType type,
  38       fileapi::OpenFileSystemMode mode,
  39       const OpenFileSystemCallback& callback) OVERRIDE;
  40   virtual fileapi::AsyncFileUtil* GetAsyncFileUtil(
  41       fileapi::FileSystemType type) OVERRIDE;
  42   virtual fileapi::CopyOrMoveFileValidatorFactory*
  43   GetCopyOrMoveFileValidatorFactory(
  44       fileapi::FileSystemType type,
  45       base::File::Error* error_code) OVERRIDE;
  46   virtual fileapi::FileSystemOperation* CreateFileSystemOperation(
  47       const fileapi::FileSystemURL& url,
  48       fileapi::FileSystemContext* context,
  49       base::File::Error* error_code) const OVERRIDE;
  50   virtual scoped_ptr<webkit_blob::FileStreamReader> CreateFileStreamReader(
  51       const fileapi::FileSystemURL& url,
  52       int64 offset,
  53       const base::Time& expected_modification_time,
  54       fileapi::FileSystemContext* context) const OVERRIDE;
  55   virtual scoped_ptr<fileapi::FileStreamWriter> CreateFileStreamWriter(
  56       const fileapi::FileSystemURL& url,
  57       int64 offset,
  58       fileapi::FileSystemContext* context) const OVERRIDE;
  59   virtual fileapi::FileSystemQuotaUtil* GetQuotaUtil() OVERRIDE;
  60
  61  private:
  62   // Store the profile path. We need this to create temporary snapshot files.
  63   const base::FilePath profile_path_;
  64
  65   scoped_refptr<base::SequencedTaskRunner> media_task_runner_;
  66
  67   scoped_ptr<MediaPathFilter> media_path_filter_;
  68   scoped_ptr<fileapi::CopyOrMoveFileValidatorFactory>
  69       media_copy_or_move_file_validator_factory_;
  70
  71   scoped_ptr<fileapi::AsyncFileUtil> native_media_file_util_;
  72   scoped_ptr<DeviceMediaAsyncFileUtil> device_media_async_file_util_;
  73 #if defined(OS_WIN) || defined(OS_MACOSX)
  74   scoped_ptr<fileapi::AsyncFileUtil> picasa_file_util_;
  75   scoped_ptr<fileapi::AsyncFileUtil> itunes_file_util_;
  76 #endif  // defined(OS_WIN) || defined(OS_MACOSX)
  77 #if defined(OS_MACOSX)
  78   scoped_ptr<fileapi::AsyncFileUtil> iphoto_file_util_;
  79 #endif  // defined(OS_MACOSX)
  80
  81   DISALLOW_COPY_AND_ASSIGN(MediaFileSystemBackend);
  82 };
  83
  84 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_MEDIA_FILE_SYSTEM_BACKEND_H_