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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 UI_BASE_MODELS_LIST_SELECTION_MODEL_H_ | 5 #ifndef UI_BASE_MODELS_LIST_SELECTION_MODEL_H_ |
| 6 #define UI_BASE_MODELS_LIST_SELECTION_MODEL_H_ | 6 #define UI_BASE_MODELS_LIST_SELECTION_MODEL_H_ |
| 7 | 7 |
| 8 #include <vector> | 8 #include <vector> |
| 9 | 9 |
| 10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
| 11 #include "ui/base/ui_export.h" | 11 #include "ui/base/ui_base_export.h" |
| 12 | 12 |
| 13 namespace ui { | 13 namespace ui { |
| 14 | 14 |
| 15 // Selection model represented as a list of ints. Used by the TabStrip. In | 15 // Selection model represented as a list of ints. Used by the TabStrip. In |
| 16 // addition to the set of selected indices ListSelectionModel maintains the | 16 // addition to the set of selected indices ListSelectionModel maintains the |
| 17 // following: | 17 // following: |
| 18 // active: the index of the currently visible tab in the tab strip. | 18 // active: the index of the currently visible tab in the tab strip. |
| 19 // anchor: the index of the last tab the user clicked on. Extending the | 19 // anchor: the index of the last tab the user clicked on. Extending the |
| 20 // selection extends it from this index. | 20 // selection extends it from this index. |
| 21 // | 21 // |
| 22 // Typically there is only one selected item, in which case the anchor and | 22 // Typically there is only one selected item, in which case the anchor and |
| 23 // active index correspond to the same thing. | 23 // active index correspond to the same thing. |
| 24 class UI_EXPORT ListSelectionModel { | 24 class UI_BASE_EXPORT ListSelectionModel { |
| 25 public: | 25 public: |
| 26 typedef std::vector<int> SelectedIndices; | 26 typedef std::vector<int> SelectedIndices; |
| 27 | 27 |
| 28 // Used to identify no selection. | 28 // Used to identify no selection. |
| 29 static const int kUnselectedIndex; | 29 static const int kUnselectedIndex; |
| 30 | 30 |
| 31 ListSelectionModel(); | 31 ListSelectionModel(); |
| 32 ~ListSelectionModel(); | 32 ~ListSelectionModel(); |
| 33 | 33 |
| 34 // See class description for details of the anchor. | 34 // See class description for details of the anchor. |
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| 107 int active_; | 107 int active_; |
| 108 | 108 |
| 109 int anchor_; | 109 int anchor_; |
| 110 | 110 |
| 111 DISALLOW_COPY_AND_ASSIGN(ListSelectionModel); | 111 DISALLOW_COPY_AND_ASSIGN(ListSelectionModel); |
| 112 }; | 112 }; |
| 113 | 113 |
| 114 } // namespace ui | 114 } // namespace ui |
| 115 | 115 |
| 116 #endif // UI_BASE_MODELS_LIST_SELECTION_MODEL_H_ | 116 #endif // UI_BASE_MODELS_LIST_SELECTION_MODEL_H_ |
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