services/inputflinger/reader/mapper/TouchpadInputMapper.cpp - platform/frameworks/native - Git at Google

 /*
  * 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.
  */

 #include "../Macros.h"

 #include <limits>
 #include <optional>

 #include <android/input.h>
 #include <ftl/enum.h>
 #include <input/PrintTools.h>
 #include <linux/input-event-codes.h>
 #include <log/log_main.h>
 #include "TouchCursorInputMapperCommon.h"
 #include "TouchpadInputMapper.h"
 #include "ui/Rotation.h"

 namespace android {

 namespace {

 /**
  * Log details of each gesture output by the gestures library.
  * Enable this via "adb shell setprop log.tag.TouchpadInputMapperGestures DEBUG" (requires
  * restarting the shell)
  */
 const bool DEBUG_TOUCHPAD_GESTURES =
         __android_log_is_loggable(ANDROID_LOG_DEBUG, "TouchpadInputMapperGestures",
                                   ANDROID_LOG_INFO);

 // Describes a segment of the acceleration curve.
 struct CurveSegment {
     // The maximum pointer speed which this segment should apply. The last segment in a curve should
     // always set this to infinity.
     double maxPointerSpeedMmPerS;
     double slope;
     double intercept;
 };

 const std::vector<CurveSegment> segments = {
         {10.922, 3.19, 0},
         {31.750, 4.79, -17.526},
         {98.044, 7.28, -96.52},
         {std::numeric_limits<double>::infinity(), 15.04, -857.758},
 };

 const std::vector<double> sensitivityFactors = {1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 20};

 std::vector<double> createAccelerationCurveForSensitivity(int32_t sensitivity,
                                                           size_t propertySize) {
     LOG_ALWAYS_FATAL_IF(propertySize < 4 * segments.size());
     std::vector<double> output(propertySize, 0);

     // The Gestures library uses functions of the following form to define curve segments, where a,
     // b, and c can be specified by us:
     //     output_speed(input_speed_mm) = a * input_speed_mm ^ 2 + b * input_speed_mm + c
     //
     // (a, b, and c are also called sqr_, mul_, and int_ in the Gestures library code.)
     //
     // We are trying to implement the following function, where slope and intercept are the
     // parameters specified in the `segments` array above:
     //     gain(input_speed_mm) =
     //             0.64 * (sensitivityFactor / 10) * (slope + intercept / input_speed_mm)
     // Where "gain" is a multiplier applied to the input speed to produce the output speed:
     //     output_speed(input_speed_mm) = input_speed_mm * gain(input_speed_mm)
     //
     // To put our function in the library's form, we substitute it into the function above:
     //     output_speed(input_speed_mm) =
     //             input_speed_mm * (0.64 * (sensitivityFactor / 10) *
     //             (slope + 25.4 * intercept / input_speed_mm))
     // then expand the brackets so that input_speed_mm cancels out for the intercept term:
     //     gain(input_speed_mm) =
     //             0.64 * (sensitivityFactor / 10) * slope * input_speed_mm +
     //             0.64 * (sensitivityFactor / 10) * intercept
     //
     // This gives us the following parameters for the Gestures library function form:
     //     a = 0
     //     b = 0.64 * (sensitivityFactor / 10) * slope
     //     c = 0.64 * (sensitivityFactor / 10) * intercept

     double commonFactor = 0.64 * sensitivityFactors[sensitivity + 7] / 10;

     size_t i = 0;
     for (CurveSegment seg : segments) {
         // The library's curve format consists of four doubles per segment:
         // * maximum pointer speed for the segment (mm/s)
         // * multiplier for the x² term (a.k.a. "a" or "sqr")
         // * multiplier for the x term (a.k.a. "b" or "mul")
         // * the intercept (a.k.a. "c" or "int")
         // (see struct CurveSegment in the library's AccelFilterInterpreter)
         output[i + 0] = seg.maxPointerSpeedMmPerS;
         output[i + 1] = 0;
         output[i + 2] = commonFactor * seg.slope;
         output[i + 3] = commonFactor * seg.intercept;
         i += 4;
     }

     return output;
 }

 short getMaxTouchCount(const InputDeviceContext& context) {
     if (context.hasScanCode(BTN_TOOL_QUINTTAP)) return 5;
     if (context.hasScanCode(BTN_TOOL_QUADTAP)) return 4;
     if (context.hasScanCode(BTN_TOOL_TRIPLETAP)) return 3;
     if (context.hasScanCode(BTN_TOOL_DOUBLETAP)) return 2;
     if (context.hasScanCode(BTN_TOOL_FINGER)) return 1;
     return 0;
 }

 HardwareProperties createHardwareProperties(const InputDeviceContext& context) {
     HardwareProperties props;
     RawAbsoluteAxisInfo absMtPositionX;
     context.getAbsoluteAxisInfo(ABS_MT_POSITION_X, &absMtPositionX);
     props.left = absMtPositionX.minValue;
     props.right = absMtPositionX.maxValue;
     props.res_x = absMtPositionX.resolution;

     RawAbsoluteAxisInfo absMtPositionY;
     context.getAbsoluteAxisInfo(ABS_MT_POSITION_Y, &absMtPositionY);
     props.top = absMtPositionY.minValue;
     props.bottom = absMtPositionY.maxValue;
     props.res_y = absMtPositionY.resolution;

     RawAbsoluteAxisInfo absMtOrientation;
     context.getAbsoluteAxisInfo(ABS_MT_ORIENTATION, &absMtOrientation);
     props.orientation_minimum = absMtOrientation.minValue;
     props.orientation_maximum = absMtOrientation.maxValue;

     RawAbsoluteAxisInfo absMtSlot;
     context.getAbsoluteAxisInfo(ABS_MT_SLOT, &absMtSlot);
     props.max_finger_cnt = absMtSlot.maxValue - absMtSlot.minValue + 1;
     props.max_touch_cnt = getMaxTouchCount(context);

     // T5R2 ("Track 5, Report 2") is a feature of some old Synaptics touchpads that could track 5
     // fingers but only report the coordinates of 2 of them. We don't know of any external touchpads
     // that did this, so assume false.
     props.supports_t5r2 = false;

     props.support_semi_mt = context.hasInputProperty(INPUT_PROP_SEMI_MT);
     props.is_button_pad = context.hasInputProperty(INPUT_PROP_BUTTONPAD);

     // Mouse-only properties, which will always be false.
     props.has_wheel = false;
     props.wheel_is_hi_res = false;

     // Linux Kernel haptic touchpad support isn't merged yet, so for now assume that no touchpads
     // are haptic.
     props.is_haptic_pad = false;
     return props;
 }

 void gestureInterpreterCallback(void* clientData, const Gesture* gesture) {
     TouchpadInputMapper* mapper = static_cast<TouchpadInputMapper*>(clientData);
     mapper->consumeGesture(gesture);
 }

 } // namespace

 TouchpadInputMapper::TouchpadInputMapper(InputDeviceContext& deviceContext)
       : InputMapper(deviceContext),
         mGestureInterpreter(NewGestureInterpreter(), DeleteGestureInterpreter),
         mPointerController(getContext()->getPointerController(getDeviceId())),
         mStateConverter(deviceContext),
         mGestureConverter(*getContext(), deviceContext, getDeviceId()) {
     mGestureInterpreter->Initialize(GESTURES_DEVCLASS_TOUCHPAD);
     mGestureInterpreter->SetHardwareProperties(createHardwareProperties(deviceContext));
     // Even though we don't explicitly delete copy/move semantics, it's safe to
     // give away pointers to TouchpadInputMapper and its members here because
     // 1) mGestureInterpreter's lifecycle is determined by TouchpadInputMapper, and
     // 2) TouchpadInputMapper is stored as a unique_ptr and not moved.
     mGestureInterpreter->SetPropProvider(const_cast<GesturesPropProvider*>(&gesturePropProvider),
                                          &mPropertyProvider);
     mGestureInterpreter->SetCallback(gestureInterpreterCallback, this);
     // TODO(b/251196347): set a timer provider, so the library can use timers.
 }

 TouchpadInputMapper::~TouchpadInputMapper() {
     if (mPointerController != nullptr) {
         mPointerController->fade(PointerControllerInterface::Transition::IMMEDIATE);
     }

     // The gesture interpreter's destructor will call its property provider's free function for all
     // gesture properties, in this case calling PropertyProvider::freeProperty using a raw pointer
     // to mPropertyProvider. Depending on the declaration order in TouchpadInputMapper.h, this may
     // happen after mPropertyProvider has been destructed, causing allocation errors. Depending on
     // declaration order to avoid crashes seems rather fragile, so explicitly clear the property
     // provider here to ensure all the freeProperty calls happen before mPropertyProvider is
     // destructed.
     mGestureInterpreter->SetPropProvider(nullptr, nullptr);
 }

 uint32_t TouchpadInputMapper::getSources() const {
     return AINPUT_SOURCE_MOUSE | AINPUT_SOURCE_TOUCHPAD;
 }

 void TouchpadInputMapper::populateDeviceInfo(InputDeviceInfo* info) {
     InputMapper::populateDeviceInfo(info);
     mGestureConverter.populateMotionRanges(*info);
 }

 void TouchpadInputMapper::dump(std::string& dump) {
     dump += INDENT2 "Touchpad Input Mapper:\n";
     dump += INDENT3 "Gesture converter:\n";
     dump += addLinePrefix(mGestureConverter.dump(), INDENT4);
     dump += INDENT3 "Gesture properties:\n";
     dump += addLinePrefix(mPropertyProvider.dump(), INDENT4);
 }

 std::list<NotifyArgs> TouchpadInputMapper::configure(nsecs_t when,
                                                      const InputReaderConfiguration* config,
                                                      uint32_t changes) {
     if (!changes) {
         // First time configuration
         mPropertyProvider.loadPropertiesFromIdcFile(getDeviceContext().getConfiguration());
     }

     if (!changes || (changes & InputReaderConfiguration::CHANGE_DISPLAY_INFO)) {
         std::optional<int32_t> displayId = mPointerController->getDisplayId();
         ui::Rotation orientation = ui::ROTATION_0;
         if (displayId.has_value()) {
             if (auto viewport = config->getDisplayViewportById(*displayId); viewport) {
                 orientation = getInverseRotation(viewport->orientation);
             }
         }
         mGestureConverter.setOrientation(orientation);
     }
     if (!changes || (changes & InputReaderConfiguration::CHANGE_TOUCHPAD_SETTINGS)) {
         mPropertyProvider.getProperty("Use Custom Touchpad Pointer Accel Curve")
                 .setBoolValues({true});
         GesturesProp accelCurveProp = mPropertyProvider.getProperty("Pointer Accel Curve");
         accelCurveProp.setRealValues(
                 createAccelerationCurveForSensitivity(config->touchpadPointerSpeed,
                                                       accelCurveProp.getCount()));
         mPropertyProvider.getProperty("Invert Scrolling")
                 .setBoolValues({config->touchpadNaturalScrollingEnabled});
         mPropertyProvider.getProperty("Tap Enable")
                 .setBoolValues({config->touchpadTapToClickEnabled});
         mPropertyProvider.getProperty("Button Right Click Zone Enable")
                 .setBoolValues({config->touchpadRightClickZoneEnabled});
     }
     return {};
 }

 std::list<NotifyArgs> TouchpadInputMapper::reset(nsecs_t when) {
     mStateConverter.reset();
     mGestureConverter.reset();
     return InputMapper::reset(when);
 }

 std::list<NotifyArgs> TouchpadInputMapper::process(const RawEvent* rawEvent) {
     std::optional<SelfContainedHardwareState> state = mStateConverter.processRawEvent(rawEvent);
     if (state) {
         return sendHardwareState(rawEvent->when, rawEvent->readTime, *state);
     } else {
         return {};
     }
 }

 std::list<NotifyArgs> TouchpadInputMapper::sendHardwareState(nsecs_t when, nsecs_t readTime,
                                                              SelfContainedHardwareState schs) {
     ALOGD_IF(DEBUG_TOUCHPAD_GESTURES, "New hardware state: %s", schs.state.String().c_str());
     mProcessing = true;
     mGestureInterpreter->PushHardwareState(&schs.state);
     mProcessing = false;

     return processGestures(when, readTime);
 }

 void TouchpadInputMapper::consumeGesture(const Gesture* gesture) {
     ALOGD_IF(DEBUG_TOUCHPAD_GESTURES, "Gesture ready: %s", gesture->String().c_str());
     if (!mProcessing) {
         ALOGE("Received gesture outside of the normal processing flow; ignoring it.");
         return;
     }
     mGesturesToProcess.push_back(*gesture);
 }

 std::list<NotifyArgs> TouchpadInputMapper::processGestures(nsecs_t when, nsecs_t readTime) {
     std::list<NotifyArgs> out = {};
     for (Gesture& gesture : mGesturesToProcess) {
         out += mGestureConverter.handleGesture(when, readTime, gesture);
     }
     mGesturesToProcess.clear();
     return out;
 }

 } // namespace android
	/*
	* 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.
	*/

	#include "../Macros.h"

	#include <limits>
	#include <optional>

	#include <android/input.h>
	#include <ftl/enum.h>
	#include <input/PrintTools.h>
	#include <linux/input-event-codes.h>
	#include <log/log_main.h>
	#include "TouchCursorInputMapperCommon.h"
	#include "TouchpadInputMapper.h"
	#include "ui/Rotation.h"

	namespace android {

	namespace {

	/**
	* Log details of each gesture output by the gestures library.
	* Enable this via "adb shell setprop log.tag.TouchpadInputMapperGestures DEBUG" (requires
	* restarting the shell)
	*/
	const bool DEBUG_TOUCHPAD_GESTURES =
	__android_log_is_loggable(ANDROID_LOG_DEBUG, "TouchpadInputMapperGestures",
	ANDROID_LOG_INFO);

	// Describes a segment of the acceleration curve.
	struct CurveSegment {
	// The maximum pointer speed which this segment should apply. The last segment in a curve should
	// always set this to infinity.
	double maxPointerSpeedMmPerS;
	double slope;
	double intercept;
	};

	const std::vector<CurveSegment> segments = {
	{10.922, 3.19, 0},
	{31.750, 4.79, -17.526},
	{98.044, 7.28, -96.52},
	{std::numeric_limits<double>::infinity(), 15.04, -857.758},
	};

	const std::vector<double> sensitivityFactors = {1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 20};

	std::vector<double> createAccelerationCurveForSensitivity(int32_t sensitivity,
	size_t propertySize) {
	LOG_ALWAYS_FATAL_IF(propertySize < 4 * segments.size());
	std::vector<double> output(propertySize, 0);

	// The Gestures library uses functions of the following form to define curve segments, where a,
	// b, and c can be specified by us:
	// output_speed(input_speed_mm) = a * input_speed_mm ^ 2 + b * input_speed_mm + c
	//
	// (a, b, and c are also called sqr_, mul_, and int_ in the Gestures library code.)
	//
	// We are trying to implement the following function, where slope and intercept are the
	// parameters specified in the `segments` array above:
	// gain(input_speed_mm) =
	// 0.64 * (sensitivityFactor / 10) * (slope + intercept / input_speed_mm)
	// Where "gain" is a multiplier applied to the input speed to produce the output speed:
	// output_speed(input_speed_mm) = input_speed_mm * gain(input_speed_mm)
	//
	// To put our function in the library's form, we substitute it into the function above:
	// output_speed(input_speed_mm) =
	// input_speed_mm * (0.64 * (sensitivityFactor / 10) *
	// (slope + 25.4 * intercept / input_speed_mm))
	// then expand the brackets so that input_speed_mm cancels out for the intercept term:
	// gain(input_speed_mm) =
	// 0.64 * (sensitivityFactor / 10) * slope * input_speed_mm +
	// 0.64 * (sensitivityFactor / 10) * intercept
	//
	// This gives us the following parameters for the Gestures library function form:
	// a = 0
	// b = 0.64 * (sensitivityFactor / 10) * slope
	// c = 0.64 * (sensitivityFactor / 10) * intercept

	double commonFactor = 0.64 * sensitivityFactors[sensitivity + 7] / 10;

	size_t i = 0;
	for (CurveSegment seg : segments) {
	// The library's curve format consists of four doubles per segment:
	// * maximum pointer speed for the segment (mm/s)
	// * multiplier for the x² term (a.k.a. "a" or "sqr")
	// * multiplier for the x term (a.k.a. "b" or "mul")
	// * the intercept (a.k.a. "c" or "int")
	// (see struct CurveSegment in the library's AccelFilterInterpreter)
	output[i + 0] = seg.maxPointerSpeedMmPerS;
	output[i + 1] = 0;
	output[i + 2] = commonFactor * seg.slope;
	output[i + 3] = commonFactor * seg.intercept;
	i += 4;
	}

	return output;
	}

	short getMaxTouchCount(const InputDeviceContext& context) {
	if (context.hasScanCode(BTN_TOOL_QUINTTAP)) return 5;
	if (context.hasScanCode(BTN_TOOL_QUADTAP)) return 4;
	if (context.hasScanCode(BTN_TOOL_TRIPLETAP)) return 3;
	if (context.hasScanCode(BTN_TOOL_DOUBLETAP)) return 2;
	if (context.hasScanCode(BTN_TOOL_FINGER)) return 1;
	return 0;
	}

	HardwareProperties createHardwareProperties(const InputDeviceContext& context) {
	HardwareProperties props;
	RawAbsoluteAxisInfo absMtPositionX;
	context.getAbsoluteAxisInfo(ABS_MT_POSITION_X, &absMtPositionX);
	props.left = absMtPositionX.minValue;
	props.right = absMtPositionX.maxValue;
	props.res_x = absMtPositionX.resolution;

	RawAbsoluteAxisInfo absMtPositionY;
	context.getAbsoluteAxisInfo(ABS_MT_POSITION_Y, &absMtPositionY);
	props.top = absMtPositionY.minValue;
	props.bottom = absMtPositionY.maxValue;
	props.res_y = absMtPositionY.resolution;

	RawAbsoluteAxisInfo absMtOrientation;
	context.getAbsoluteAxisInfo(ABS_MT_ORIENTATION, &absMtOrientation);
	props.orientation_minimum = absMtOrientation.minValue;
	props.orientation_maximum = absMtOrientation.maxValue;

	RawAbsoluteAxisInfo absMtSlot;
	context.getAbsoluteAxisInfo(ABS_MT_SLOT, &absMtSlot);
	props.max_finger_cnt = absMtSlot.maxValue - absMtSlot.minValue + 1;
	props.max_touch_cnt = getMaxTouchCount(context);

	// T5R2 ("Track 5, Report 2") is a feature of some old Synaptics touchpads that could track 5
	// fingers but only report the coordinates of 2 of them. We don't know of any external touchpads
	// that did this, so assume false.
	props.supports_t5r2 = false;

	props.support_semi_mt = context.hasInputProperty(INPUT_PROP_SEMI_MT);
	props.is_button_pad = context.hasInputProperty(INPUT_PROP_BUTTONPAD);

	// Mouse-only properties, which will always be false.
	props.has_wheel = false;
	props.wheel_is_hi_res = false;

	// Linux Kernel haptic touchpad support isn't merged yet, so for now assume that no touchpads
	// are haptic.
	props.is_haptic_pad = false;
	return props;
	}

	void gestureInterpreterCallback(void* clientData, const Gesture* gesture) {
	TouchpadInputMapper* mapper = static_cast<TouchpadInputMapper*>(clientData);
	mapper->consumeGesture(gesture);
	}

	} // namespace

	TouchpadInputMapper::TouchpadInputMapper(InputDeviceContext& deviceContext)
	: InputMapper(deviceContext),
	mGestureInterpreter(NewGestureInterpreter(), DeleteGestureInterpreter),
	mPointerController(getContext()->getPointerController(getDeviceId())),
	mStateConverter(deviceContext),
	mGestureConverter(*getContext(), deviceContext, getDeviceId()) {
	mGestureInterpreter->Initialize(GESTURES_DEVCLASS_TOUCHPAD);
	mGestureInterpreter->SetHardwareProperties(createHardwareProperties(deviceContext));
	// Even though we don't explicitly delete copy/move semantics, it's safe to
	// give away pointers to TouchpadInputMapper and its members here because
	// 1) mGestureInterpreter's lifecycle is determined by TouchpadInputMapper, and
	// 2) TouchpadInputMapper is stored as a unique_ptr and not moved.
	mGestureInterpreter->SetPropProvider(const_cast<GesturesPropProvider*>(&gesturePropProvider),
	&mPropertyProvider);
	mGestureInterpreter->SetCallback(gestureInterpreterCallback, this);
	// TODO(b/251196347): set a timer provider, so the library can use timers.
	}

	TouchpadInputMapper::~TouchpadInputMapper() {
	if (mPointerController != nullptr) {
	mPointerController->fade(PointerControllerInterface::Transition::IMMEDIATE);
	}

	// The gesture interpreter's destructor will call its property provider's free function for all
	// gesture properties, in this case calling PropertyProvider::freeProperty using a raw pointer
	// to mPropertyProvider. Depending on the declaration order in TouchpadInputMapper.h, this may
	// happen after mPropertyProvider has been destructed, causing allocation errors. Depending on
	// declaration order to avoid crashes seems rather fragile, so explicitly clear the property
	// provider here to ensure all the freeProperty calls happen before mPropertyProvider is
	// destructed.
	mGestureInterpreter->SetPropProvider(nullptr, nullptr);
	}

	uint32_t TouchpadInputMapper::getSources() const {
	return AINPUT_SOURCE_MOUSE \| AINPUT_SOURCE_TOUCHPAD;
	}

	void TouchpadInputMapper::populateDeviceInfo(InputDeviceInfo* info) {
	InputMapper::populateDeviceInfo(info);
	mGestureConverter.populateMotionRanges(*info);
	}

	void TouchpadInputMapper::dump(std::string& dump) {
	dump += INDENT2 "Touchpad Input Mapper:\n";
	dump += INDENT3 "Gesture converter:\n";
	dump += addLinePrefix(mGestureConverter.dump(), INDENT4);
	dump += INDENT3 "Gesture properties:\n";
	dump += addLinePrefix(mPropertyProvider.dump(), INDENT4);
	}

	std::list<NotifyArgs> TouchpadInputMapper::configure(nsecs_t when,
	const InputReaderConfiguration* config,
	uint32_t changes) {
	if (!changes) {
	// First time configuration
	mPropertyProvider.loadPropertiesFromIdcFile(getDeviceContext().getConfiguration());
	}

	if (!changes \|\| (changes & InputReaderConfiguration::CHANGE_DISPLAY_INFO)) {
	std::optional<int32_t> displayId = mPointerController->getDisplayId();
	ui::Rotation orientation = ui::ROTATION_0;
	if (displayId.has_value()) {
	if (auto viewport = config->getDisplayViewportById(*displayId); viewport) {
	orientation = getInverseRotation(viewport->orientation);
	}
	}
	mGestureConverter.setOrientation(orientation);
	}
	if (!changes \|\| (changes & InputReaderConfiguration::CHANGE_TOUCHPAD_SETTINGS)) {
	mPropertyProvider.getProperty("Use Custom Touchpad Pointer Accel Curve")
	.setBoolValues({true});
	GesturesProp accelCurveProp = mPropertyProvider.getProperty("Pointer Accel Curve");
	accelCurveProp.setRealValues(
	createAccelerationCurveForSensitivity(config->touchpadPointerSpeed,
	accelCurveProp.getCount()));
	mPropertyProvider.getProperty("Invert Scrolling")
	.setBoolValues({config->touchpadNaturalScrollingEnabled});
	mPropertyProvider.getProperty("Tap Enable")
	.setBoolValues({config->touchpadTapToClickEnabled});
	mPropertyProvider.getProperty("Button Right Click Zone Enable")
	.setBoolValues({config->touchpadRightClickZoneEnabled});
	}
	return {};
	}

	std::list<NotifyArgs> TouchpadInputMapper::reset(nsecs_t when) {
	mStateConverter.reset();
	mGestureConverter.reset();
	return InputMapper::reset(when);
	}

	std::list<NotifyArgs> TouchpadInputMapper::process(const RawEvent* rawEvent) {
	std::optional<SelfContainedHardwareState> state = mStateConverter.processRawEvent(rawEvent);
	if (state) {
	return sendHardwareState(rawEvent->when, rawEvent->readTime, *state);
	} else {
	return {};
	}
	}

	std::list<NotifyArgs> TouchpadInputMapper::sendHardwareState(nsecs_t when, nsecs_t readTime,
	SelfContainedHardwareState schs) {
	ALOGD_IF(DEBUG_TOUCHPAD_GESTURES, "New hardware state: %s", schs.state.String().c_str());
	mProcessing = true;
	mGestureInterpreter->PushHardwareState(&schs.state);
	mProcessing = false;

	return processGestures(when, readTime);
	}

	void TouchpadInputMapper::consumeGesture(const Gesture* gesture) {
	ALOGD_IF(DEBUG_TOUCHPAD_GESTURES, "Gesture ready: %s", gesture->String().c_str());
	if (!mProcessing) {
	ALOGE("Received gesture outside of the normal processing flow; ignoring it.");
	return;
	}
	mGesturesToProcess.push_back(*gesture);
	}

	std::list<NotifyArgs> TouchpadInputMapper::processGestures(nsecs_t when, nsecs_t readTime) {
	std::list<NotifyArgs> out = {};
	for (Gesture& gesture : mGesturesToProcess) {
	out += mGestureConverter.handleGesture(when, readTime, gesture);
	}
	mGesturesToProcess.clear();
	return out;
	}

	} // namespace android