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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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