webkit/browser/fileapi/isolated_file_system_backend.h

   1 // Copyright (c) 2012 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 WEBKIT_BROWSER_FILEAPI_ISOLATED_FILE_SYSTEM_BACKEND_H_
   6 #define WEBKIT_BROWSER_FILEAPI_ISOLATED_FILE_SYSTEM_BACKEND_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "webkit/browser/fileapi/file_system_backend.h"
  10
  11 namespace fileapi {
  12
  13 class AsyncFileUtilAdapter;
  14
  15 class IsolatedFileSystemBackend : public FileSystemBackend {
  16  public:
  17   IsolatedFileSystemBackend();
  18   virtual ~IsolatedFileSystemBackend();
  19
  20   // FileSystemBackend implementation.
  21   virtual bool CanHandleType(FileSystemType type) const OVERRIDE;
  22   virtual void Initialize(FileSystemContext* context) OVERRIDE;
  23   virtual void ResolveURL(const FileSystemURL& url,
  24                           OpenFileSystemMode mode,
  25                           const OpenFileSystemCallback& callback) OVERRIDE;
  26   virtual AsyncFileUtil* GetAsyncFileUtil(FileSystemType type) OVERRIDE;
  27   virtual CopyOrMoveFileValidatorFactory* GetCopyOrMoveFileValidatorFactory(
  28       FileSystemType type,
  29       base::File::Error* error_code) OVERRIDE;
  30   virtual FileSystemOperation* CreateFileSystemOperation(
  31       const FileSystemURL& url,
  32       FileSystemContext* context,
  33       base::File::Error* error_code) const OVERRIDE;
  34   virtual bool SupportsStreaming(const FileSystemURL& url) const OVERRIDE;
  35   virtual scoped_ptr<webkit_blob::FileStreamReader> CreateFileStreamReader(
  36       const FileSystemURL& url,
  37       int64 offset,
  38       const base::Time& expected_modification_time,
  39       FileSystemContext* context) const OVERRIDE;
  40   virtual scoped_ptr<FileStreamWriter> CreateFileStreamWriter(
  41       const FileSystemURL& url,
  42       int64 offset,
  43       FileSystemContext* context) const OVERRIDE;
  44   virtual FileSystemQuotaUtil* GetQuotaUtil() OVERRIDE;
  45
  46  private:
  47   scoped_ptr<AsyncFileUtilAdapter> isolated_file_util_;
  48   scoped_ptr<AsyncFileUtilAdapter> dragged_file_util_;
  49   scoped_ptr<AsyncFileUtilAdapter> transient_file_util_;
  50 };
  51
  52 }  // namespace fileapi
  53
  54 #endif  // WEBKIT_BROWSER_FILEAPI_ISOLATED_FILE_SYSTEM_BACKEND_H_