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/*
* Copyright 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <optional>
#include <set>
#include <utils/Timers.h>
#include "EventHub.h"
#include "InputDevice.h"
#include "accumulator/CursorButtonAccumulator.h"
#include "accumulator/MultiTouchMotionAccumulator.h"
#include "accumulator/TouchButtonAccumulator.h"
#include "include/gestures.h"
namespace android {
// A HardwareState struct, but bundled with a vector to contain its FingerStates, so you don't have
// to worry about where that memory is allocated.
struct SelfContainedHardwareState {
HardwareState state;
std::vector<FingerState> fingers;
};
// Converts RawEvents into the HardwareState structs used by the gestures library.
class HardwareStateConverter {
public:
HardwareStateConverter(const InputDeviceContext& deviceContext,
MultiTouchMotionAccumulator& motionAccumulator);
std::optional<SelfContainedHardwareState> processRawEvent(const RawEvent* event);
void reset();
private:
SelfContainedHardwareState produceHardwareState(nsecs_t when);
const InputDeviceContext& mDeviceContext;
CursorButtonAccumulator mCursorButtonAccumulator;
MultiTouchMotionAccumulator& mMotionAccumulator;
TouchButtonAccumulator mTouchButtonAccumulator;
int32_t mMscTimestamp = 0;
};
} // namespace android
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