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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_FILE_WRITE_HELPER_H_ | 5 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_FILE_WRITE_HELPER_H_ |
6 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_WRITE_HELPER_H_ | 6 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_WRITE_HELPER_H_ |
7 | 7 |
8 #include "base/memory/weak_ptr.h" | 8 #include "base/memory/weak_ptr.h" |
9 #include "chrome/browser/chromeos/drive/drive_file_error.h" | 9 #include "chrome/browser/chromeos/drive/drive_file_error.h" |
10 #include "chrome/browser/chromeos/drive/drive_file_system_interface.h" | 10 #include "chrome/browser/chromeos/drive/drive_file_system_interface.h" |
11 | 11 |
| 12 namespace base { |
12 class FilePath; | 13 class FilePath; |
| 14 } |
13 | 15 |
14 namespace drive { | 16 namespace drive { |
15 | 17 |
16 // This class provides higher level operations for writing to Drive files over | 18 // This class provides higher level operations for writing to Drive files over |
17 // DriveFileSystemInterface. | 19 // DriveFileSystemInterface. |
18 class FileWriteHelper { | 20 class FileWriteHelper { |
19 public: | 21 public: |
20 explicit FileWriteHelper(DriveFileSystemInterface* file_system); | 22 explicit FileWriteHelper(DriveFileSystemInterface* file_system); |
21 ~FileWriteHelper(); | 23 ~FileWriteHelper(); |
22 | 24 |
23 // Prepares a local temporary file path and passes it to |callback| on the | 25 // Prepares a local temporary file path and passes it to |callback| on the |
24 // blocking thread pool that allows file operations. The modification to | 26 // blocking thread pool that allows file operations. The modification to |
25 // the file is reflected to GData |path|. If |path| does not exist, a new | 27 // the file is reflected to GData |path|. If |path| does not exist, a new |
26 // file is created. | 28 // file is created. |
27 // | 29 // |
28 // Must be called from UI thread. | 30 // Must be called from UI thread. |
29 void PrepareWritableFileAndRun(const FilePath& path, | 31 void PrepareWritableFileAndRun(const base::FilePath& path, |
30 const OpenFileCallback& callback); | 32 const OpenFileCallback& callback); |
31 | 33 |
32 private: | 34 private: |
33 // Part of PrepareWritableFilePathAndRun(). It tries CreateFile for the case | 35 // Part of PrepareWritableFilePathAndRun(). It tries CreateFile for the case |
34 // file does not exist yet, does OpenFile to download and mark the file as | 36 // file does not exist yet, does OpenFile to download and mark the file as |
35 // dirty, runs |callback|, and finally calls CloseFile. | 37 // dirty, runs |callback|, and finally calls CloseFile. |
36 void PrepareWritableFileAndRunAfterCreateFile( | 38 void PrepareWritableFileAndRunAfterCreateFile( |
37 const FilePath& file_path, | 39 const base::FilePath& file_path, |
38 const OpenFileCallback& callback, | 40 const OpenFileCallback& callback, |
39 DriveFileError result); | 41 DriveFileError result); |
40 void PrepareWritableFileAndRunAfterOpenFile( | 42 void PrepareWritableFileAndRunAfterOpenFile( |
41 const FilePath& file_path, | 43 const base::FilePath& file_path, |
42 const OpenFileCallback& callback, | 44 const OpenFileCallback& callback, |
43 DriveFileError result, | 45 DriveFileError result, |
44 const FilePath& local_cache_path); | 46 const base::FilePath& local_cache_path); |
45 void PrepareWritableFileAndRunAfterCallback(const FilePath& file_path); | 47 void PrepareWritableFileAndRunAfterCallback(const base::FilePath& file_path); |
46 | 48 |
47 // File system owned by DriveSystemService. | 49 // File system owned by DriveSystemService. |
48 DriveFileSystemInterface* file_system_; | 50 DriveFileSystemInterface* file_system_; |
49 | 51 |
50 // WeakPtrFactory bound to the UI thread. | 52 // WeakPtrFactory bound to the UI thread. |
51 // Note: This should remain the last member so it'll be destroyed and | 53 // Note: This should remain the last member so it'll be destroyed and |
52 // invalidate its weak pointers before any other members are destroyed. | 54 // invalidate its weak pointers before any other members are destroyed. |
53 base::WeakPtrFactory<FileWriteHelper> weak_ptr_factory_; | 55 base::WeakPtrFactory<FileWriteHelper> weak_ptr_factory_; |
54 | 56 |
55 DISALLOW_COPY_AND_ASSIGN(FileWriteHelper); | 57 DISALLOW_COPY_AND_ASSIGN(FileWriteHelper); |
56 }; | 58 }; |
57 | 59 |
58 } // namespace drive | 60 } // namespace drive |
59 | 61 |
60 #endif // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_WRITE_HELPER_H_ | 62 #endif // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_WRITE_HELPER_H_ |
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