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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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_SYNC_SYNCABLE_DIRECTORY_CHANGE_LISTENER_H_ | 5 #ifndef CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_CHANGE_DELEGATE_H_ |
6 #define CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_CHANGE_LISTENER_H_ | 6 #define CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_CHANGE_DELEGATE_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "chrome/browser/sync/syncable/model_type.h" | 9 #include "chrome/browser/sync/syncable/model_type.h" |
10 #include "chrome/browser/sync/syncable/syncable.h" | 10 #include "chrome/browser/sync/syncable/syncable.h" |
11 | 11 |
12 namespace syncable { | 12 namespace syncable { |
13 | 13 |
14 // This is an interface for listening to directory change events, triggered by | 14 // This is an interface for listening to directory change events, triggered by |
15 // the releasing of the syncable transaction. The listener performs work to | 15 // the releasing of the syncable transaction. The delegate performs work to |
16 // 1. Calculate changes, depending on the source of the transaction | 16 // 1. Calculate changes, depending on the source of the transaction |
17 // (HandleCalculateChangesChangeEventFromSyncer/Syncapi). | 17 // (HandleCalculateChangesChangeEventFromSyncer/Syncapi). |
18 // 2. Perform final work while the transaction is held | 18 // 2. Perform final work while the transaction is held |
19 // (HandleTransactionEndingChangeEvent). | 19 // (HandleTransactionEndingChangeEvent). |
20 // 3. Perform any work that should be done after the transaction is released. | 20 // 3. Perform any work that should be done after the transaction is released. |
21 // (HandleTransactionCompleteChangeEvent). | 21 // (HandleTransactionCompleteChangeEvent). |
22 class DirectoryChangeListener { | 22 // |
| 23 // Note that these methods may be called on *any* thread. |
| 24 class DirectoryChangeDelegate { |
23 public: | 25 public: |
24 virtual void HandleCalculateChangesChangeEventFromSyncApi( | 26 virtual void HandleCalculateChangesChangeEventFromSyncApi( |
25 const OriginalEntries& originals, | 27 const OriginalEntries& originals, |
26 const WriterTag& writer, | |
27 BaseTransaction* trans) = 0; | 28 BaseTransaction* trans) = 0; |
28 virtual void HandleCalculateChangesChangeEventFromSyncer( | 29 virtual void HandleCalculateChangesChangeEventFromSyncer( |
29 const OriginalEntries& originals, | 30 const OriginalEntries& originals, |
30 const WriterTag& writer, | |
31 BaseTransaction* trans) = 0; | 31 BaseTransaction* trans) = 0; |
| 32 // Must return the set of all ModelTypes that were modified in the |
| 33 // transaction. |
32 virtual ModelTypeBitSet HandleTransactionEndingChangeEvent( | 34 virtual ModelTypeBitSet HandleTransactionEndingChangeEvent( |
33 BaseTransaction* trans) = 0; | 35 BaseTransaction* trans) = 0; |
34 virtual void HandleTransactionCompleteChangeEvent( | 36 virtual void HandleTransactionCompleteChangeEvent( |
35 const ModelTypeBitSet& models_with_changes) = 0; | 37 const ModelTypeBitSet& models_with_changes) = 0; |
36 protected: | 38 protected: |
37 virtual ~DirectoryChangeListener() {} | 39 virtual ~DirectoryChangeDelegate() {} |
38 }; | 40 }; |
39 | 41 |
40 } // namespace syncable | 42 } // namespace syncable |
41 | 43 |
42 #endif // CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_CHANGE_LISTENER_H_ | 44 #endif // CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_CHANGE_DELEGATE_H_ |
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