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/*
* Copyright (C) 2019 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 "TouchInputMapper.h"
#include "accumulator/MultiTouchMotionAccumulator.h"
namespace android {
class MultiTouchInputMapper : public TouchInputMapper {
public:
template <class T, class... Args>
friend std::unique_ptr<T> createInputMapper(InputDeviceContext& deviceContext,
const InputReaderConfiguration& readerConfig,
Args... args);
~MultiTouchInputMapper() override;
[[nodiscard]] std::list<NotifyArgs> reset(nsecs_t when) override;
[[nodiscard]] std::list<NotifyArgs> process(const RawEvent& rawEvent) override;
[[nodiscard]] std::list<NotifyArgs> reconfigure(nsecs_t when,
const InputReaderConfiguration& config,
ConfigurationChanges changes) override;
protected:
void syncTouch(nsecs_t when, RawState* outState) override;
void configureRawPointerAxes() override;
bool hasStylus() const override;
private:
explicit MultiTouchInputMapper(InputDeviceContext& deviceContext,
const InputReaderConfiguration& readerConfig);
// If the slot is in use, return the bit id. Return std::nullopt otherwise.
std::optional<int32_t> getActiveBitId(const MultiTouchMotionAccumulator::Slot& inSlot);
MultiTouchMotionAccumulator mMultiTouchMotionAccumulator;
// Specifies the pointer id bits that are in use, and their associated tracking id.
BitSet32 mPointerIdBits;
int32_t mPointerTrackingIdMap[MAX_POINTER_ID + 1];
bool mStylusMtToolSeen{false};
// simulate_stylus_with_touch is a debug mode that converts all finger pointers reported by this
// mapper's touchscreen into stylus pointers, and adds SOURCE_STYLUS to the input device.
// It is used to simulate stylus events for debugging and testing on a device that does not
// support styluses. It can be enabled using
// "adb shell setprop debug.input.simulate_stylus_with_touch true".
// After enabling, the touchscreen will need to be reconfigured. A reconfiguration usually
// happens when turning the screen on/off or by rotating the device orientation.
bool mShouldSimulateStylusWithTouch{false};
};
} // namespace android
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