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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 #include "base/files/file_util_proxy.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/bind_helpers.h" | |
| 9 #include "base/files/file_util.h" | |
| 10 #include "base/location.h" | |
| 11 #include "base/task_runner.h" | |
| 12 #include "base/task_runner_util.h" | |
| 13 | |
| 14 namespace base { | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 void CallWithTranslatedParameter(const FileUtilProxy::StatusCallback& callback, | |
| 19 bool value) { | |
| 20 DCHECK(!callback.is_null()); | |
| 21 callback.Run(value ? File::FILE_OK : File::FILE_ERROR_FAILED); | |
| 22 } | |
| 23 | |
| 24 class GetFileInfoHelper { | |
| 25 public: | |
| 26 GetFileInfoHelper() | |
| 27 : error_(File::FILE_OK) {} | |
| 28 | |
| 29 void RunWorkForFilePath(const FilePath& file_path) { | |
| 30 if (!PathExists(file_path)) { | |
| 31 error_ = File::FILE_ERROR_NOT_FOUND; | |
| 32 return; | |
| 33 } | |
| 34 if (!GetFileInfo(file_path, &file_info_)) | |
| 35 error_ = File::FILE_ERROR_FAILED; | |
| 36 } | |
| 37 | |
| 38 void Reply(const FileUtilProxy::GetFileInfoCallback& callback) { | |
| 39 if (!callback.is_null()) { | |
| 40 callback.Run(error_, file_info_); | |
| 41 } | |
| 42 } | |
| 43 | |
| 44 private: | |
| 45 File::Error error_; | |
| 46 File::Info file_info_; | |
| 47 DISALLOW_COPY_AND_ASSIGN(GetFileInfoHelper); | |
| 48 }; | |
| 49 | |
| 50 File::Error DeleteAdapter(const FilePath& file_path, bool recursive) { | |
| 51 if (!PathExists(file_path)) { | |
| 52 return File::FILE_ERROR_NOT_FOUND; | |
| 53 } | |
| 54 if (!base::DeleteFile(file_path, recursive)) { | |
| 55 if (!recursive && !base::IsDirectoryEmpty(file_path)) { | |
| 56 return File::FILE_ERROR_NOT_EMPTY; | |
| 57 } | |
| 58 return File::FILE_ERROR_FAILED; | |
| 59 } | |
| 60 return File::FILE_OK; | |
| 61 } | |
| 62 | |
| 63 } // namespace | |
| 64 | |
| 65 // Retrieves the information about a file. It is invalid to pass NULL for the | |
| 66 // callback. | |
| 67 bool FileUtilProxy::GetFileInfo( | |
| 68 TaskRunner* task_runner, | |
| 69 const FilePath& file_path, | |
| 70 const GetFileInfoCallback& callback) { | |
| 71 GetFileInfoHelper* helper = new GetFileInfoHelper; | |
| 72 return task_runner->PostTaskAndReply( | |
| 73 FROM_HERE, | |
| 74 Bind(&GetFileInfoHelper::RunWorkForFilePath, | |
| 75 Unretained(helper), file_path), | |
| 76 Bind(&GetFileInfoHelper::Reply, Owned(helper), callback)); | |
| 77 } | |
| 78 | |
| 79 // static | |
| 80 bool FileUtilProxy::DeleteFile(TaskRunner* task_runner, | |
| 81 const FilePath& file_path, | |
| 82 bool recursive, | |
| 83 const StatusCallback& callback) { | |
| 84 return base::PostTaskAndReplyWithResult( | |
| 85 task_runner, FROM_HERE, | |
| 86 Bind(&DeleteAdapter, file_path, recursive), | |
| 87 callback); | |
| 88 } | |
| 89 | |
| 90 // static | |
| 91 bool FileUtilProxy::Touch( | |
| 92 TaskRunner* task_runner, | |
| 93 const FilePath& file_path, | |
| 94 const Time& last_access_time, | |
| 95 const Time& last_modified_time, | |
| 96 const StatusCallback& callback) { | |
| 97 return base::PostTaskAndReplyWithResult( | |
| 98 task_runner, | |
| 99 FROM_HERE, | |
| 100 Bind(&TouchFile, file_path, last_access_time, last_modified_time), | |
| 101 Bind(&CallWithTranslatedParameter, callback)); | |
| 102 } | |
| 103 | |
| 104 } // namespace base | |
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