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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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