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      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_NATIVE_FILE_UTIL_H_
      6 #define WEBKIT_BROWSER_FILEAPI_NATIVE_FILE_UTIL_H_
      7 
      8 #include "base/files/file_path.h"
      9 #include "base/files/file_util_proxy.h"
     10 #include "base/memory/scoped_ptr.h"
     11 #include "base/platform_file.h"
     12 #include "webkit/browser/fileapi/file_system_file_util.h"
     13 #include "webkit/browser/webkit_storage_browser_export.h"
     14 
     15 namespace base {
     16 class Time;
     17 }
     18 
     19 namespace fileapi {
     20 
     21 // A thin wrapper class for accessing the OS native filesystem.
     22 // This performs common error checks necessary to implement FileUtil family
     23 // in addition to perform native filesystem operations.
     24 //
     25 // For the error checks it performs please see the comment for
     26 // FileSystemFileUtil interface
     27 // (webkit/browser/fileapi/file_system_file_util.h).
     28 //
     29 // Note that all the methods of this class are static and this does NOT
     30 // inherit from FileSystemFileUtil.
     31 class WEBKIT_STORAGE_BROWSER_EXPORT_PRIVATE NativeFileUtil {
     32  public:
     33   enum CopyOrMoveMode {
     34     COPY_NOSYNC,
     35     COPY_SYNC,
     36     MOVE
     37   };
     38   static CopyOrMoveMode CopyOrMoveModeForDestination(
     39       const FileSystemURL& dest_url, bool copy);
     40 
     41   static base::PlatformFileError CreateOrOpen(
     42       const base::FilePath& path,
     43       int file_flags,
     44       base::PlatformFile* file_handle,
     45       bool* created);
     46   static base::PlatformFileError Close(base::PlatformFile file);
     47   static base::PlatformFileError EnsureFileExists(const base::FilePath& path,
     48                                                   bool* created);
     49   static base::PlatformFileError CreateDirectory(const base::FilePath& path,
     50                                                  bool exclusive,
     51                                                  bool recursive);
     52   static base::PlatformFileError GetFileInfo(const base::FilePath& path,
     53                                              base::PlatformFileInfo* file_info);
     54   static scoped_ptr<FileSystemFileUtil::AbstractFileEnumerator>
     55       CreateFileEnumerator(const base::FilePath& root_path,
     56                            bool recursive);
     57   static base::PlatformFileError Touch(const base::FilePath& path,
     58                                        const base::Time& last_access_time,
     59                                        const base::Time& last_modified_time);
     60   static base::PlatformFileError Truncate(const base::FilePath& path,
     61                                           int64 length);
     62   static bool PathExists(const base::FilePath& path);
     63   static bool DirectoryExists(const base::FilePath& path);
     64   static base::PlatformFileError CopyOrMoveFile(
     65       const base::FilePath& src_path,
     66       const base::FilePath& dest_path,
     67       FileSystemOperation::CopyOrMoveOption option,
     68       CopyOrMoveMode mode);
     69   static base::PlatformFileError DeleteFile(const base::FilePath& path);
     70   static base::PlatformFileError DeleteDirectory(const base::FilePath& path);
     71 
     72  private:
     73   DISALLOW_IMPLICIT_CONSTRUCTORS(NativeFileUtil);
     74 };
     75 
     76 }  // namespace fileapi
     77 
     78 #endif  // WEBKIT_BROWSER_FILEAPI_NATIVE_FILE_UTIL_H_
     79