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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 ATHENA_INPUT_ACCELERATOR_MANAGER_H_
6 #define ATHENA_INPUT_ACCELERATOR_MANAGER_H_
7 
8 #include "athena/input/public/accelerator_manager.h"
9 
10 #include <map>
11 
12 #include "base/macros.h"
13 #include "ui/base/accelerators/accelerator.h"
14 #include "ui/events/event_target_iterator.h"
15 
16 namespace aura {
17 class Window;
18 }
19 
20 namespace wm {
21 class AcceleratorFilter;
22 class NestedAcceleratorController;
23 }
24 
25 namespace athena {
26 
27 // AcceleratorManagerImpl provides a API to register accelerators
28 // for athena modules. It hides various details on accelerator handling
29 // such as how to handle accelerator in a nested loop, reserved accelerators
30 // and repeated accelerators.
31 class AcceleratorManagerImpl : public AcceleratorManager,
32                                public ui::AcceleratorTarget {
33  public:
34   class AcceleratorWrapper;
35 
36   // Creates an AcceleratorManager for global accelerators.
37   // This is the one returned by AcceleratorManager::Get()
38   static AcceleratorManagerImpl* CreateGlobalAcceleratorManager();
39 
40   // Creates an AcceleratorManager for focus manager.
41   static scoped_ptr<AcceleratorManager> CreateForFocusManager(
42       views::FocusManager* focus_manager);
43 
44   virtual ~AcceleratorManagerImpl();
45 
46   void Init();
47 
48   void OnRootWindowCreated(aura::Window* root_window);
49 
50   bool Process(const ui::Accelerator& accelerator);
51 
52   // AcceleratorManager:
53   // This is made public so that implementation classes can use this.
54   virtual bool IsRegistered(const ui::Accelerator& accelerator,
55                             int flags) const OVERRIDE;
56 
57  private:
58   class InternalData;
59 
60   explicit AcceleratorManagerImpl(AcceleratorWrapper* wrapper);
61 
62   // AcceleratorManager:
63   virtual void RegisterAccelerators(const AcceleratorData accelerators[],
64                                     size_t num_accelerators,
65                                     AcceleratorHandler* handler) OVERRIDE;
66   virtual void SetDebugAcceleratorsEnabled(bool enabled) OVERRIDE;
67 
68   // ui::AcceleratorTarget:
69   virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE;
70   virtual bool CanHandleAccelerators() const OVERRIDE;
71 
72   void RegisterAccelerator(const AcceleratorData& accelerator,
73                            AcceleratorHandler* handler);
74 
75   std::map<ui::Accelerator, InternalData> accelerators_;
76   scoped_ptr<AcceleratorWrapper> accelerator_wrapper_;
77   scoped_ptr<wm::AcceleratorFilter> accelerator_filter_;
78   scoped_ptr<wm::NestedAcceleratorController> nested_accelerator_controller_;
79   bool debug_accelerators_enabled_;
80 
81   DISALLOW_COPY_AND_ASSIGN(AcceleratorManagerImpl);
82 };
83 
84 }  // namespace athena
85 
86 #endif  // ATHENA_INPUT_ACCELERATOR_MANAGER_H_
87