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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 NET_BASE_DIRECTORY_LISTER_H_ | 5 #ifndef NET_BASE_DIRECTORY_LISTER_H_ |
6 #define NET_BASE_DIRECTORY_LISTER_H_ | 6 #define NET_BASE_DIRECTORY_LISTER_H_ |
7 | 7 |
8 #include <vector> | 8 #include <vector> |
9 | 9 |
10 #include "base/files/file_enumerator.h" | 10 #include "base/files/file_enumerator.h" |
11 #include "base/files/file_path.h" | 11 #include "base/files/file_path.h" |
12 #include "base/memory/ref_counted.h" | 12 #include "base/memory/ref_counted.h" |
13 #include "base/message_loop/message_loop_proxy.h" | 13 #include "base/message_loop/message_loop_proxy.h" |
14 #include "net/base/net_export.h" | 14 #include "net/base/net_export.h" |
15 | 15 |
16 namespace net { | 16 namespace net { |
17 | 17 |
18 // | 18 // |
19 // This class provides an API for listing the contents of a directory on the | 19 // This class provides an API for listing the contents of a directory on the |
20 // filesystem asynchronously. It spawns a background thread, and enumerates | 20 // filesystem asynchronously. It spawns a background thread, and enumerates |
21 // the specified directory on that thread. It marshalls WIN32_FIND_DATA | 21 // the specified directory on that thread. It marshalls WIN32_FIND_DATA |
22 // structs over to the main application thread. The consumer of this class | 22 // structs over to the main application thread. The consumer of this class |
23 // is insulated from any of the multi-threading details. | 23 // is insulated from any of the multi-threading details. |
24 // | 24 // |
25 class NET_EXPORT DirectoryLister { | 25 class NET_EXPORT DirectoryLister { |
26 public: | 26 public: |
27 // Represents one file found. | 27 // Represents one file found. |
28 struct DirectoryListerData { | 28 struct DirectoryListerData { |
29 base::FileEnumerator::FileInfo info; | 29 base::FileEnumerator::FileInfo info; |
30 base::FilePath path; | 30 base::FilePath path; |
31 }; | 31 }; |
32 | 32 |
33 // Implement this class to receive directory entries. | 33 // Implement this class to receive directory entries. |
34 class DirectoryListerDelegate { | 34 class DirectoryListerDelegate { |
35 public: | 35 public: |
36 // Called for each file found by the lister. | 36 // Called for each file found by the lister. |
37 virtual void OnListFile(const DirectoryListerData& data) = 0; | 37 virtual void OnListFile(const DirectoryListerData& data) = 0; |
38 | 38 |
39 // Called when the listing is complete. | 39 // Called when the listing is complete. |
40 virtual void OnListDone(int error) = 0; | 40 virtual void OnListDone(int error) = 0; |
41 | 41 |
42 protected: | 42 protected: |
43 virtual ~DirectoryListerDelegate() {} | 43 virtual ~DirectoryListerDelegate() {} |
44 }; | 44 }; |
45 | 45 |
46 // Sort options | 46 // Sort options |
47 // ALPHA_DIRS_FIRST is the default sort : | 47 // ALPHA_DIRS_FIRST is the default sort : |
48 // directories first in name order, then files by name order | 48 // directories first in name order, then files by name order |
49 // FULL_PATH sorts by paths as strings, ignoring files v. directories | 49 // FULL_PATH sorts by paths as strings, ignoring files v. directories |
50 // DATE sorts by last modified date | 50 // DATE sorts by last modified date |
51 enum SortType { | 51 enum SortType { NO_SORT, DATE, ALPHA_DIRS_FIRST, FULL_PATH }; |
52 NO_SORT, | |
53 DATE, | |
54 ALPHA_DIRS_FIRST, | |
55 FULL_PATH | |
56 }; | |
57 | 52 |
58 DirectoryLister(const base::FilePath& dir, | 53 DirectoryLister(const base::FilePath& dir, DirectoryListerDelegate* delegate); |
59 DirectoryListerDelegate* delegate); | |
60 | 54 |
61 DirectoryLister(const base::FilePath& dir, | 55 DirectoryLister(const base::FilePath& dir, |
62 bool recursive, | 56 bool recursive, |
63 SortType sort, | 57 SortType sort, |
64 DirectoryListerDelegate* delegate); | 58 DirectoryListerDelegate* delegate); |
65 | 59 |
66 // Will invoke Cancel(). | 60 // Will invoke Cancel(). |
67 ~DirectoryLister(); | 61 ~DirectoryLister(); |
68 | 62 |
69 // Call this method to start the directory enumeration thread. | 63 // Call this method to start the directory enumeration thread. |
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114 | 108 |
115 const scoped_refptr<Core> core_; | 109 const scoped_refptr<Core> core_; |
116 DirectoryListerDelegate* const delegate_; | 110 DirectoryListerDelegate* const delegate_; |
117 | 111 |
118 DISALLOW_COPY_AND_ASSIGN(DirectoryLister); | 112 DISALLOW_COPY_AND_ASSIGN(DirectoryLister); |
119 }; | 113 }; |
120 | 114 |
121 } // namespace net | 115 } // namespace net |
122 | 116 |
123 #endif // NET_BASE_DIRECTORY_LISTER_H_ | 117 #endif // NET_BASE_DIRECTORY_LISTER_H_ |
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