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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef UI_BASE_ACCELERATORS_ACCELERATOR_HISTORY_H_ | |
| 6 #define UI_BASE_ACCELERATORS_ACCELERATOR_HISTORY_H_ | |
| 7 | |
| 8 #include "base/memory/singleton.h" | |
| 9 #include "ui/base/accelerators/accelerator.h" | |
| 10 #include "ui/base/ui_base_export.h" | |
| 11 #include "ui/events/event.h" | |
| 12 #include "ui/events/event_handler.h" | |
| 13 | |
| 14 namespace ui { | |
| 15 | |
| 16 // Keeps track of the system-wide current and the most recent previous | |
| 17 // key accelerators. | |
| 18 class UI_BASE_EXPORT AcceleratorHistory { | |
| 19 public: | |
| 20 AcceleratorHistory(); | |
| 21 ~AcceleratorHistory(); | |
| 22 | |
| 23 // Returns the most recent recorded accelerator. | |
| 24 const Accelerator& GetCurrentAccelerator() const; | |
| 25 | |
| 26 // Returns the most recent previously recorded accelerator that is different | |
| 27 // than the current. | |
| 28 const Accelerator& GetPreviousAccelerator() const; | |
|
sky
2014/11/18 22:11:48
inline these and name to match the fields, eg prev
afakhry
2014/11/18 23:08:40
Done.
| |
| 29 | |
| 30 // Stores the given |accelerator| only if it's different than the currently | |
| 31 // stored one. | |
| 32 void StoreCurrentAccelerator(const Accelerator& accelerator); | |
| 33 | |
| 34 private: | |
| 35 | |
|
sky
2014/11/18 22:11:48
nit: no newline here.
afakhry
2014/11/18 23:08:40
Done.
| |
| 36 Accelerator current_accelerator_; | |
| 37 Accelerator previous_accelerator_; | |
| 38 }; | |
|
sky
2014/11/18 22:11:48
DISALLOW...
afakhry
2014/11/18 23:08:40
Done.
| |
| 39 | |
| 40 }; // namespace ui | |
| 41 | |
| 42 #endif // UI_BASE_ACCELERATORS_ACCELERATOR_HISTORY_H_ | |
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