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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 IOS_CHROME_BROWSER_READING_LIST_READING_LIST_MODEL_H_ | 5 #ifndef IOS_CHROME_BROWSER_READING_LIST_READING_LIST_MODEL_H_ |
| 6 #define IOS_CHROME_BROWSER_READING_LIST_READING_LIST_MODEL_H_ | 6 #define IOS_CHROME_BROWSER_READING_LIST_READING_LIST_MODEL_H_ |
| 7 | 7 |
| 8 #include <memory> | 8 #include <memory> |
| 9 #include <string> | 9 #include <string> |
| 10 #include <vector> | 10 #include <vector> |
| 11 | 11 |
| 12 #include "base/callback.h" | 12 #include "base/callback.h" |
| 13 #include "base/observer_list.h" | 13 #include "base/observer_list.h" |
| 14 #include "ios/chrome/browser/reading_list/reading_list_entry.h" | 14 #include "ios/chrome/browser/reading_list/reading_list_entry.h" |
| 15 #include "ios/chrome/browser/reading_list/reading_list_model_observer.h" | 15 #include "ios/chrome/browser/reading_list/reading_list_model_observer.h" |
| 16 | 16 |
| 17 class GURL; | 17 class GURL; |
| 18 class ReadingListModel; | 18 class ReadingListModel; |
| 19 class ReadingListStore; | 19 class ReadingListStore; |
| 20 | 20 |
| 21 namespace ios { | 21 namespace ios { |
| 22 class ChromeBrowserState; | 22 class ChromeBrowserState; |
| 23 } | 23 } |
| 24 | 24 |
| 25 namespace syncer { | 25 namespace syncer { |
| 26 class SyncableService; | 26 class ModelTypeService; |
| 27 } | 27 } |
| 28 | 28 |
| 29 // The reading list model contains two list of entries: one of unread urls, the | 29 // The reading list model contains two list of entries: one of unread urls, the |
| 30 // other of read ones. This object should only be accessed from one thread | 30 // other of read ones. This object should only be accessed from one thread |
| 31 // (Usually the main thread). The observers callbacks are also sent on the main | 31 // (Usually the main thread). The observers callbacks are also sent on the main |
| 32 // thread. | 32 // thread. |
| 33 class ReadingListModel { | 33 class ReadingListModel { |
| 34 public: | 34 public: |
| 35 class ScopedReadingListBatchUpdate; | 35 class ScopedReadingListBatchUpdate; |
| 36 // Returns true if the model finished loading. Until this returns true the | 36 // Returns true if the model finished loading. Until this returns true the |
| 37 // reading list is not ready for use. | 37 // reading list is not ready for use. |
| 38 virtual bool loaded() const = 0; | 38 virtual bool loaded() const = 0; |
| 39 | 39 |
| 40 // Returns true if the model is performing batch updates right now. | 40 // Returns true if the model is performing batch updates right now. |
| 41 bool IsPerformingBatchUpdates() const; | 41 bool IsPerformingBatchUpdates() const; |
| 42 | 42 |
| 43 virtual syncer::ModelTypeService* GetModelTypeService() = 0; |
| 44 |
| 43 // Tells model to prepare for batch updates. | 45 // Tells model to prepare for batch updates. |
| 44 // This method is reentrant, i.e. several batch updates may take place at the | 46 // This method is reentrant, i.e. several batch updates may take place at the |
| 45 // same time. | 47 // same time. |
| 46 // Returns a scoped batch update object that should be retained while the | 48 // Returns a scoped batch update object that should be retained while the |
| 47 // batch update is performed. Deallocating this object will inform model that | 49 // batch update is performed. Deallocating this object will inform model that |
| 48 // the batch update has completed. | 50 // the batch update has completed. |
| 49 std::unique_ptr<ScopedReadingListBatchUpdate> BeginBatchUpdates(); | 51 std::unique_ptr<ScopedReadingListBatchUpdate> BeginBatchUpdates(); |
| 50 | 52 |
| 51 // Returns the size of read and unread entries. | 53 // Returns the size of read and unread entries. |
| 52 virtual size_t unread_size() const = 0; | 54 virtual size_t unread_size() const = 0; |
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| 129 // Called when model is leaving batch update mode. | 131 // Called when model is leaving batch update mode. |
| 130 virtual void LeavingBatchUpdates(); | 132 virtual void LeavingBatchUpdates(); |
| 131 | 133 |
| 132 private: | 134 private: |
| 133 unsigned int current_batch_updates_count_; | 135 unsigned int current_batch_updates_count_; |
| 134 | 136 |
| 135 DISALLOW_COPY_AND_ASSIGN(ReadingListModel); | 137 DISALLOW_COPY_AND_ASSIGN(ReadingListModel); |
| 136 }; | 138 }; |
| 137 | 139 |
| 138 #endif // IOS_CHROME_BROWSER_READING_LIST_READING_LIST_MODEL_H_ | 140 #endif // IOS_CHROME_BROWSER_READING_LIST_READING_LIST_MODEL_H_ |
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