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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 REMOTING_HOST_TOUCH_INJECTOR_WIN_H_ | 5 #ifndef REMOTING_HOST_TOUCH_INJECTOR_WIN_H_ |
6 #define REMOTING_HOST_TOUCH_INJECTOR_WIN_H_ | 6 #define REMOTING_HOST_TOUCH_INJECTOR_WIN_H_ |
7 | 7 |
8 #include <windows.h> | 8 #include <windows.h> |
9 #include <stdint.h> | 9 #include <stdint.h> |
10 #include <map> | 10 #include <map> |
| 11 #include <memory> |
11 #include <vector> | 12 #include <vector> |
12 | 13 |
13 #include "base/macros.h" | 14 #include "base/macros.h" |
14 #include "base/memory/scoped_ptr.h" | |
15 #include "base/scoped_native_library.h" | 15 #include "base/scoped_native_library.h" |
16 | 16 |
17 namespace remoting { | 17 namespace remoting { |
18 | 18 |
19 namespace protocol { | 19 namespace protocol { |
20 | 20 |
21 class TouchEvent; | 21 class TouchEvent; |
22 | 22 |
23 } // namespace protocol | 23 } // namespace protocol |
24 | 24 |
25 // This class calls InitializeTouchInjection() and InjectTouchInput() functions. | 25 // This class calls InitializeTouchInjection() and InjectTouchInput() functions. |
26 // The methods are virtual for mocking. | 26 // The methods are virtual for mocking. |
27 class TouchInjectorWinDelegate { | 27 class TouchInjectorWinDelegate { |
28 public: | 28 public: |
29 virtual ~TouchInjectorWinDelegate(); | 29 virtual ~TouchInjectorWinDelegate(); |
30 | 30 |
31 // Determines whether Windows touch injection functions can be used. | 31 // Determines whether Windows touch injection functions can be used. |
32 // Returns a non-null TouchInjectorWinDelegate on success. | 32 // Returns a non-null TouchInjectorWinDelegate on success. |
33 static scoped_ptr<TouchInjectorWinDelegate> Create(); | 33 static std::unique_ptr<TouchInjectorWinDelegate> Create(); |
34 | 34 |
35 // These match the functions in MSDN. | 35 // These match the functions in MSDN. |
36 virtual BOOL InitializeTouchInjection(UINT32 max_count, DWORD dw_mode); | 36 virtual BOOL InitializeTouchInjection(UINT32 max_count, DWORD dw_mode); |
37 virtual DWORD InjectTouchInput(UINT32 count, | 37 virtual DWORD InjectTouchInput(UINT32 count, |
38 const POINTER_TOUCH_INFO* contacts); | 38 const POINTER_TOUCH_INFO* contacts); |
39 | 39 |
40 protected: | 40 protected: |
41 // Ctor in protected scope for mocking. | 41 // Ctor in protected scope for mocking. |
42 // This object takes ownership of the |library|. | 42 // This object takes ownership of the |library|. |
43 TouchInjectorWinDelegate( | 43 TouchInjectorWinDelegate( |
(...skipping 24 matching lines...) Expand all Loading... |
68 // Returns false if initialization of touch injection APIs fails. | 68 // Returns false if initialization of touch injection APIs fails. |
69 bool Init(); | 69 bool Init(); |
70 | 70 |
71 // Deinitializes the object so that it can be reinitialized. | 71 // Deinitializes the object so that it can be reinitialized. |
72 void Deinitialize(); | 72 void Deinitialize(); |
73 | 73 |
74 // Inject touch events. | 74 // Inject touch events. |
75 void InjectTouchEvent(const protocol::TouchEvent& event); | 75 void InjectTouchEvent(const protocol::TouchEvent& event); |
76 | 76 |
77 void SetInjectorDelegateForTest( | 77 void SetInjectorDelegateForTest( |
78 scoped_ptr<TouchInjectorWinDelegate> functions); | 78 std::unique_ptr<TouchInjectorWinDelegate> functions); |
79 | 79 |
80 private: | 80 private: |
81 // Helper methods called from InjectTouchEvent(). | 81 // Helper methods called from InjectTouchEvent(). |
82 // These helpers adapt Chromoting touch events, which convey changes to touch | 82 // These helpers adapt Chromoting touch events, which convey changes to touch |
83 // points, to Windows touch descriptions, which must include descriptions for | 83 // points, to Windows touch descriptions, which must include descriptions for |
84 // all currently-active touch points, not just the changed ones. | 84 // all currently-active touch points, not just the changed ones. |
85 void AddNewTouchPoints(const protocol::TouchEvent& event); | 85 void AddNewTouchPoints(const protocol::TouchEvent& event); |
86 void MoveTouchPoints(const protocol::TouchEvent& event); | 86 void MoveTouchPoints(const protocol::TouchEvent& event); |
87 void EndTouchPoints(const protocol::TouchEvent& event); | 87 void EndTouchPoints(const protocol::TouchEvent& event); |
88 void CancelTouchPoints(const protocol::TouchEvent& event); | 88 void CancelTouchPoints(const protocol::TouchEvent& event); |
89 | 89 |
90 // Set to null if touch injection is not available from the OS. | 90 // Set to null if touch injection is not available from the OS. |
91 scoped_ptr<TouchInjectorWinDelegate> delegate_; | 91 std::unique_ptr<TouchInjectorWinDelegate> delegate_; |
92 | 92 |
93 // TODO(rkuroiwa): crbug.com/470203 | 93 // TODO(rkuroiwa): crbug.com/470203 |
94 // This is a naive implementation. Check if we can achieve | 94 // This is a naive implementation. Check if we can achieve |
95 // better performance by reducing the number of copies. | 95 // better performance by reducing the number of copies. |
96 // To reduce the number of copies, we can have a vector of | 96 // To reduce the number of copies, we can have a vector of |
97 // POINTER_TOUCH_INFO and a map from touch ID to index in the vector. | 97 // POINTER_TOUCH_INFO and a map from touch ID to index in the vector. |
98 // When removing points from the vector, just swap it with the last element | 98 // When removing points from the vector, just swap it with the last element |
99 // and resize the vector. | 99 // and resize the vector. |
100 // All the POINTER_TOUCH_INFOs are stored as "move" points. | 100 // All the POINTER_TOUCH_INFOs are stored as "move" points. |
101 std::map<uint32_t, POINTER_TOUCH_INFO> touches_in_contact_; | 101 std::map<uint32_t, POINTER_TOUCH_INFO> touches_in_contact_; |
102 | 102 |
103 DISALLOW_COPY_AND_ASSIGN(TouchInjectorWin); | 103 DISALLOW_COPY_AND_ASSIGN(TouchInjectorWin); |
104 }; | 104 }; |
105 | 105 |
106 } // namespace remoting | 106 } // namespace remoting |
107 | 107 |
108 #endif // REMOTING_HOST_TOUCH_INJECTOR_WIN_H_ | 108 #endif // REMOTING_HOST_TOUCH_INJECTOR_WIN_H_ |
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