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Side by Side Diff: ios/chrome/browser/reading_list/reading_list_model.h

Issue 2398233003: with sync (Closed)
Patch Set: done Created 4 years, 2 months ago
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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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