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 #pragma once 18 19 #include <ui/Rotation.h> 20 21 #include "CursorScrollAccumulator.h" 22 #include "InputMapper.h" 23 24 namespace android { 25 26 class RotaryEncoderInputMapper : public InputMapper { 27 public: 28 template <class T, class... Args> 29 friend std::unique_ptr<T> createInputMapper(InputDeviceContext& deviceContext, 30 const InputReaderConfiguration& readerConfig, 31 Args... args); 32 virtual ~RotaryEncoderInputMapper(); 33 34 virtual uint32_t getSources() const override; 35 virtual void populateDeviceInfo(InputDeviceInfo& deviceInfo) override; 36 virtual void dump(std::string& dump) override; 37 [[nodiscard]] std::list<NotifyArgs> reconfigure(nsecs_t when, 38 const InputReaderConfiguration& config, 39 ConfigurationChanges changes) override; 40 [[nodiscard]] std::list<NotifyArgs> reset(nsecs_t when) override; 41 [[nodiscard]] std::list<NotifyArgs> process(const RawEvent* rawEvent) override; 42 43 private: 44 CursorScrollAccumulator mRotaryEncoderScrollAccumulator; 45 46 int32_t mSource; 47 float mScalingFactor; 48 ui::Rotation mOrientation; 49 50 explicit RotaryEncoderInputMapper(InputDeviceContext& deviceContext, 51 const InputReaderConfiguration& readerConfig); 52 [[nodiscard]] std::list<NotifyArgs> sync(nsecs_t when, nsecs_t readTime); 53 }; 54 55 } // namespace android 56