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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 bool 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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