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| 1 /* | 1 /* |
| 2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
| (...skipping 35 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 46 static PassOwnPtr<UndoStack> create(); | 46 static PassOwnPtr<UndoStack> create(); |
| 47 | 47 |
| 48 void registerUndoStep(PassRefPtr<UndoStep>); | 48 void registerUndoStep(PassRefPtr<UndoStep>); |
| 49 void registerRedoStep(PassRefPtr<UndoStep>); | 49 void registerRedoStep(PassRefPtr<UndoStep>); |
| 50 void didUnloadFrame(const LocalFrame&); | 50 void didUnloadFrame(const LocalFrame&); |
| 51 bool canUndo() const; | 51 bool canUndo() const; |
| 52 bool canRedo() const; | 52 bool canRedo() const; |
| 53 void undo(); | 53 void undo(); |
| 54 void redo(); | 54 void redo(); |
| 55 | 55 |
| 56 void trace(Visitor*); | |
| 57 | |
| 58 private: | 56 private: |
| 59 UndoStack(); | 57 UndoStack(); |
| 60 | 58 |
| 61 typedef Deque<RefPtr<UndoStep> > UndoStepStack; | 59 typedef Deque<RefPtr<UndoStep> > UndoStepStack; |
| 62 | 60 |
| 63 void filterOutUndoSteps(UndoStepStack&, const LocalFrame&); | 61 void filterOutUndoSteps(UndoStepStack&, const LocalFrame&); |
| 64 | 62 |
| 65 bool m_inRedo; | 63 bool m_inRedo; |
| 66 UndoStepStack m_undoStack; | 64 UndoStepStack m_undoStack; |
| 67 UndoStepStack m_redoStack; | 65 UndoStepStack m_redoStack; |
| 68 }; | 66 }; |
| 69 | 67 |
| 70 } // namespace blink | 68 } // namespace blink |
| 71 | 69 |
| 72 #endif | 70 #endif |
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