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107 lines
4.5 KiB
107 lines
4.5 KiB
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _UI_INPUTREADER_INPUT_MAPPER_H
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#define _UI_INPUTREADER_INPUT_MAPPER_H
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#include "EventHub.h"
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#include "InputDevice.h"
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#include "InputListener.h"
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#include "InputReaderContext.h"
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#include "StylusState.h"
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#include "VibrationElement.h"
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namespace android {
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/* An input mapper transforms raw input events into cooked event data.
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* A single input device can have multiple associated input mappers in order to interpret
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* different classes of events.
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*
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* InputMapper lifecycle:
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* - create
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* - configure with 0 changes
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* - reset
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* - process, process, process (may occasionally reconfigure with non-zero changes or reset)
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* - reset
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* - destroy
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*/
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class InputMapper {
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public:
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explicit InputMapper(InputDeviceContext& deviceContext);
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virtual ~InputMapper();
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inline int32_t getDeviceId() { return mDeviceContext.getId(); }
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inline InputDeviceContext& getDeviceContext() { return mDeviceContext; }
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inline const std::string getDeviceName() { return mDeviceContext.getName(); }
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inline InputReaderContext* getContext() { return mDeviceContext.getContext(); }
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inline InputReaderPolicyInterface* getPolicy() { return getContext()->getPolicy(); }
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inline InputListenerInterface* getListener() { return getContext()->getListener(); }
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virtual uint32_t getSources() = 0;
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virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo);
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virtual void dump(std::string& dump);
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virtual void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes);
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virtual void reset(nsecs_t when);
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virtual void process(const RawEvent* rawEvent) = 0;
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virtual void timeoutExpired(nsecs_t when);
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virtual int32_t getKeyCodeState(uint32_t sourceMask, int32_t keyCode);
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virtual int32_t getScanCodeState(uint32_t sourceMask, int32_t scanCode);
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virtual int32_t getSwitchState(uint32_t sourceMask, int32_t switchCode);
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virtual bool markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes,
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const int32_t* keyCodes, uint8_t* outFlags);
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virtual void vibrate(const VibrationSequence& sequence, ssize_t repeat, int32_t token);
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virtual void cancelVibrate(int32_t token);
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virtual bool isVibrating();
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virtual std::vector<int32_t> getVibratorIds();
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virtual void cancelTouch(nsecs_t when, nsecs_t readTime);
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virtual bool enableSensor(InputDeviceSensorType sensorType,
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std::chrono::microseconds samplingPeriod,
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std::chrono::microseconds maxBatchReportLatency);
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virtual void disableSensor(InputDeviceSensorType sensorType);
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virtual void flushSensor(InputDeviceSensorType sensorType);
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virtual std::optional<int32_t> getBatteryCapacity() { return std::nullopt; }
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virtual std::optional<int32_t> getBatteryStatus() { return std::nullopt; }
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virtual bool setLightColor(int32_t lightId, int32_t color) { return true; }
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virtual bool setLightPlayerId(int32_t lightId, int32_t playerId) { return true; }
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virtual std::optional<int32_t> getLightColor(int32_t lightId) { return std::nullopt; }
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virtual std::optional<int32_t> getLightPlayerId(int32_t lightId) { return std::nullopt; }
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virtual int32_t getMetaState();
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virtual void updateMetaState(int32_t keyCode);
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virtual void updateExternalStylusState(const StylusState& state);
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virtual std::optional<int32_t> getAssociatedDisplayId() { return std::nullopt; }
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virtual void updateLedState(bool reset) {}
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protected:
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InputDeviceContext& mDeviceContext;
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status_t getAbsoluteAxisInfo(int32_t axis, RawAbsoluteAxisInfo* axisInfo);
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void bumpGeneration();
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static void dumpRawAbsoluteAxisInfo(std::string& dump, const RawAbsoluteAxisInfo& axis,
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const char* name);
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static void dumpStylusState(std::string& dump, const StylusState& state);
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};
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} // namespace android
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#endif // _UI_INPUTREADER_INPUT_MAPPER_H
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