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| 1 // Copyright 2017 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 REMOTING_CLIENT_UI_TRACKPAD_INPUT_STRATEGY_H_ | |
| 6 #define REMOTING_CLIENT_UI_TRACKPAD_INPUT_STRATEGY_H_ | |
| 7 | |
| 8 #include "remoting/client/ui/input_strategy.h" | |
| 9 | |
| 10 namespace remoting { | |
| 11 | |
| 12 // This strategy simulate the trackpad's behavior. It keeps a visible cursor | |
| 13 // with positions independent of the location of the touch events. | |
| 14 class TrackpadInputStrategy : public InputStrategy { | |
| 15 public: | |
| 16 TrackpadInputStrategy(const DesktopViewport& viewport); | |
| 17 ~TrackpadInputStrategy() override; | |
| 18 | |
| 19 // InputStrategy overrides. | |
| 20 void HandleZoom(const ViewMatrix::Point& pivot, | |
| 21 float scale, | |
| 22 DesktopViewport* viewport) override; | |
| 23 | |
| 24 bool HandlePan(const ViewMatrix::Vector2D& translation, | |
| 25 Gesture simultaneous_gesture, | |
| 26 DesktopViewport* viewport) override; | |
| 27 | |
| 28 void TrackTouchInput(const ViewMatrix::Point& touch_point, | |
| 29 const DesktopViewport& viewport) override; | |
| 30 | |
| 31 ViewMatrix::Point GetCursorPosition() const override; | |
| 32 | |
| 33 ViewMatrix::Vector2D MapScreenVectorToDesktop( | |
| 34 const ViewMatrix::Vector2D& delta, | |
| 35 const DesktopViewport& viewport) const override; | |
| 36 | |
| 37 float GetFeedbackRadius(InputFeedbackType type) const override; | |
| 38 | |
| 39 bool IsCursorVisible() const override; | |
| 40 | |
| 41 private: | |
| 42 ViewMatrix::Point cursor_position_; | |
| 43 | |
| 44 // TrackpadInputStrategy is neither copyable nor movable. | |
| 45 TrackpadInputStrategy(const TrackpadInputStrategy&) = delete; | |
| 46 TrackpadInputStrategy& operator=(const TrackpadInputStrategy&) = delete; | |
| 47 }; | |
| 48 | |
| 49 } // namespace remoting | |
| 50 #endif // REMOTING_CLIENT_UI_TRACKPAD_INPUT_STRATEGY_H_ | |
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