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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_ACCELERATORS_ACCELERATOR_MANAGER_H_ | 5 #ifndef UI_BASE_ACCELERATORS_ACCELERATOR_MANAGER_H_ |
6 #define UI_BASE_ACCELERATORS_ACCELERATOR_MANAGER_H_ | 6 #define UI_BASE_ACCELERATORS_ACCELERATOR_MANAGER_H_ |
7 | 7 |
8 #include <list> | 8 #include <list> |
9 #include <map> | 9 #include <map> |
10 #include <utility> | 10 #include <utility> |
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63 bool Process(const Accelerator& accelerator); | 63 bool Process(const Accelerator& accelerator); |
64 | 64 |
65 // Returns the AcceleratorTarget that should be activated for the specified | 65 // Returns the AcceleratorTarget that should be activated for the specified |
66 // keyboard accelerator, or NULL if no view is registered for that keyboard | 66 // keyboard accelerator, or NULL if no view is registered for that keyboard |
67 // accelerator. | 67 // accelerator. |
68 AcceleratorTarget* GetCurrentTarget(const Accelerator& accelertor) const; | 68 AcceleratorTarget* GetCurrentTarget(const Accelerator& accelertor) const; |
69 | 69 |
70 // Whether the given |accelerator| has a priority handler associated with it. | 70 // Whether the given |accelerator| has a priority handler associated with it. |
71 bool HasPriorityHandler(const Accelerator& accelerator) const; | 71 bool HasPriorityHandler(const Accelerator& accelerator) const; |
72 | 72 |
| 73 // Updates last_event_ without calling Process(). The function should be |
| 74 // called when the |event| is consumed by some other component before this |
| 75 // manager processes it. |
| 76 void set_last_event(const Accelerator& event) { |
| 77 last_event_ = event; |
| 78 } |
| 79 |
| 80 private: |
73 // Returns false when Process() should never handle the |accelerator|. | 81 // Returns false when Process() should never handle the |accelerator|. |
74 bool ShouldHandle(const Accelerator& accelerator) const; | 82 bool ShouldHandle(const Accelerator& accelerator) const; |
75 | 83 |
76 private: | |
77 // The accelerators and associated targets. | 84 // The accelerators and associated targets. |
78 typedef std::list<AcceleratorTarget*> AcceleratorTargetList; | 85 typedef std::list<AcceleratorTarget*> AcceleratorTargetList; |
79 // This construct pairs together a |bool| (denoting whether the list contains | 86 // This construct pairs together a |bool| (denoting whether the list contains |
80 // a priority_handler at the front) with the list of AcceleratorTargets. | 87 // a priority_handler at the front) with the list of AcceleratorTargets. |
81 typedef std::pair<bool, AcceleratorTargetList> AcceleratorTargets; | 88 typedef std::pair<bool, AcceleratorTargetList> AcceleratorTargets; |
82 typedef std::map<Accelerator, AcceleratorTargets> AcceleratorMap; | 89 typedef std::map<Accelerator, AcceleratorTargets> AcceleratorMap; |
83 AcceleratorMap accelerators_; | 90 AcceleratorMap accelerators_; |
84 | 91 |
85 // An event passed to Process() last time. | 92 // An event passed to Process() last time. |
86 EventType last_event_type_; | 93 Accelerator last_event_; |
87 | 94 |
88 DISALLOW_COPY_AND_ASSIGN(AcceleratorManager); | 95 DISALLOW_COPY_AND_ASSIGN(AcceleratorManager); |
89 }; | 96 }; |
90 | 97 |
91 } // namespace ui | 98 } // namespace ui |
92 | 99 |
93 #endif // UI_BASE_ACCELERATORS_ACCELERATOR_MANAGER_H_ | 100 #endif // UI_BASE_ACCELERATORS_ACCELERATOR_MANAGER_H_ |
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