1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _UI_INPUTREADER_TOUCH_BUTTON_ACCUMULATOR_H 18 #define _UI_INPUTREADER_TOUCH_BUTTON_ACCUMULATOR_H 19 20 #include <stdint.h> 21 22 namespace android { 23 24 class InputDeviceContext; 25 struct RawEvent; 26 27 /* Keeps track of the state of touch, stylus and tool buttons. */ 28 class TouchButtonAccumulator { 29 public: 30 TouchButtonAccumulator(); 31 void configure(InputDeviceContext& deviceContext); 32 void reset(InputDeviceContext& deviceContext); 33 34 void process(const RawEvent* rawEvent); 35 36 uint32_t getButtonState() const; 37 int32_t getToolType() const; 38 bool isToolActive() const; 39 bool isHovering() const; 40 bool hasStylus() const; 41 42 private: 43 bool mHaveBtnTouch; 44 bool mHaveStylus; 45 46 bool mBtnTouch; 47 bool mBtnStylus; 48 bool mBtnStylus2; 49 bool mBtnToolFinger; 50 bool mBtnToolPen; 51 bool mBtnToolRubber; 52 bool mBtnToolBrush; 53 bool mBtnToolPencil; 54 bool mBtnToolAirbrush; 55 bool mBtnToolMouse; 56 bool mBtnToolLens; 57 bool mBtnToolDoubleTap; 58 bool mBtnToolTripleTap; 59 bool mBtnToolQuadTap; 60 61 void clearButtons(); 62 }; 63 64 } // namespace android 65 66 #endif // _UI_INPUTREADER_TOUCH_BUTTON_ACCUMULATOR_H