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_CURSOR_BUTTON_ACCUMULATOR_H 18 #define _UI_INPUTREADER_CURSOR_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 mouse or touch pad buttons. */ 28 class CursorButtonAccumulator { 29 public: 30 CursorButtonAccumulator(); 31 void reset(InputDeviceContext& deviceContext); 32 33 void process(const RawEvent* rawEvent); 34 35 uint32_t getButtonState() const; 36 37 private: 38 bool mBtnLeft; 39 bool mBtnRight; 40 bool mBtnMiddle; 41 bool mBtnBack; 42 bool mBtnSide; 43 bool mBtnForward; 44 bool mBtnExtra; 45 bool mBtnTask; 46 47 void clearButtons(); 48 }; 49 50 } // namespace android 51 52 #endif // _UI_INPUTREADER_CURSOR_BUTTON_ACCUMULATOR_H