1 /* 2 * Copyright (C) 2016 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 __WEAR_TOUCH_H 18 #define __WEAR_TOUCH_H 19 20 #include <pthread.h> 21 22 class WearSwipeDetector { 23 24 public: 25 enum SwipeDirection { UP, DOWN, RIGHT, LEFT }; 26 typedef void (*OnSwipeCallback)(void* cookie, enum SwipeDirection direction); 27 28 WearSwipeDetector(int low, int high, OnSwipeCallback cb, void* cookie); 29 ~WearSwipeDetector(); 30 31 private: 32 void run(); 33 void process(struct input_event *event); 34 void detect(int dx, int dy); 35 36 pthread_t mThread; 37 static void* touch_thread(void* cookie); 38 39 int findDevice(const char* path); 40 int openDevice(const char* device); 41 42 int mLowThreshold; 43 int mHighThreshold; 44 45 OnSwipeCallback mCallback; 46 void *mCookie; 47 48 int mX; 49 int mY; 50 int mStartX; 51 int mStartY; 52 53 int mCurrentSlot; 54 bool mFingerDown; 55 bool mSwiping; 56 }; 57 58 #endif // __WEAR_TOUCH_H 59
