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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 UI_BASE_MODELS_TABLE_MODEL_OBSERVER_H_ | 5 #ifndef UI_BASE_MODELS_TABLE_MODEL_OBSERVER_H_ |
6 #define UI_BASE_MODELS_TABLE_MODEL_OBSERVER_H_ | 6 #define UI_BASE_MODELS_TABLE_MODEL_OBSERVER_H_ |
7 | 7 |
8 #include "ui/base/ui_export.h" | 8 #include "ui/base/ui_base_export.h" |
9 | 9 |
10 namespace ui { | 10 namespace ui { |
11 | 11 |
12 // Observer for a TableModel. Anytime the model changes, it must notify its | 12 // Observer for a TableModel. Anytime the model changes, it must notify its |
13 // observer. | 13 // observer. |
14 class UI_EXPORT TableModelObserver { | 14 class UI_BASE_EXPORT TableModelObserver { |
15 public: | 15 public: |
16 // Invoked when the model has been completely changed. | 16 // Invoked when the model has been completely changed. |
17 virtual void OnModelChanged() = 0; | 17 virtual void OnModelChanged() = 0; |
18 | 18 |
19 // Invoked when a range of items has changed. | 19 // Invoked when a range of items has changed. |
20 virtual void OnItemsChanged(int start, int length) = 0; | 20 virtual void OnItemsChanged(int start, int length) = 0; |
21 | 21 |
22 // Invoked when new items are added. | 22 // Invoked when new items are added. |
23 virtual void OnItemsAdded(int start, int length) = 0; | 23 virtual void OnItemsAdded(int start, int length) = 0; |
24 | 24 |
25 // Invoked when a range of items has been removed. | 25 // Invoked when a range of items has been removed. |
26 virtual void OnItemsRemoved(int start, int length) = 0; | 26 virtual void OnItemsRemoved(int start, int length) = 0; |
27 | 27 |
28 protected: | 28 protected: |
29 virtual ~TableModelObserver() {} | 29 virtual ~TableModelObserver() {} |
30 }; | 30 }; |
31 | 31 |
32 } // namespace ui | 32 } // namespace ui |
33 | 33 |
34 #endif // UI_BASE_MODELS_TABLE_MODEL_OBSERVER_H_ | 34 #endif // UI_BASE_MODELS_TABLE_MODEL_OBSERVER_H_ |
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