Merge "Support touchpad gesture properties in IDC files" into udc-dev (c8a42794) · Commits · e / os / android_frameworks_native

include/input/PropertyMap.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -18,7 +18,10 @@

		#include <android-base/result.h>
		#include <utils/Tokenizer.h>

		#include <string>
		#include <unordered_map>
		#include <unordered_set>

		namespace android {

		@@ -57,6 +60,9 @@ public:
		*/
		void addProperty(const std::string& key, const std::string& value);

		/* Returns a set of all property keys starting with the given prefix. */
		std::unordered_set<std::string> getKeysWithPrefix(const std::string& prefix) const;

		/* Gets the value of a property and parses it.
		* Returns true and sets outValue if the key was found and its value was parsed successfully.
		* Otherwise returns false and does not modify outValue. (Also logs a warning.)
		@@ -65,6 +71,7 @@ public:
		bool tryGetProperty(const std::string& key, bool& outValue) const;
		bool tryGetProperty(const std::string& key, int32_t& outValue) const;
		bool tryGetProperty(const std::string& key, float& outValue) const;
		bool tryGetProperty(const std::string& key, double& outValue) const;

		/* Adds all values from the specified property map. */
		void addAll(const PropertyMap* map);

libs/input/Android.bp

+1 −0

Original line number	Diff line number	Diff line
		@@ -167,6 +167,7 @@ cc_library {

		cc_defaults {
		name: "libinput_fuzz_defaults",
		cpp_std: "c++20",
		host_supported: true,
		shared_libs: [
		"libutils",

libs/input/PropertyMap.cpp

+29 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,8 @@

		#define LOG_TAG "PropertyMap"

		#include <cstdlib>

		#include <input/PropertyMap.h>
		#include <log/log.h>

		@@ -44,6 +46,16 @@ void PropertyMap::addProperty(const std::string& key, const std::string& value)
		mProperties.emplace(key, value);
		}

		std::unordered_set<std::string> PropertyMap::getKeysWithPrefix(const std::string& prefix) const {
		std::unordered_set<std::string> keys;
		for (const auto& [key, _] : mProperties) {
		if (key.starts_with(prefix)) {
		keys.insert(key);
		}
		}
		return keys;
		}

		bool PropertyMap::hasProperty(const std::string& key) const {
		return mProperties.find(key) != mProperties.end();
		}
		@@ -102,6 +114,23 @@ bool PropertyMap::tryGetProperty(const std::string& key, float& outValue) const
		return true;
		}

		bool PropertyMap::tryGetProperty(const std::string& key, double& outValue) const {
		std::string stringValue;
		if (!tryGetProperty(key, stringValue) \|\| stringValue.length() == 0) {
		return false;
		}

		char* end;
		double value = strtod(stringValue.c_str(), &end);
		if (*end != '\0') {
		ALOGW("Property key '%s' has invalid value '%s'. Expected a double.", key.c_str(),
		stringValue.c_str());
		return false;
		}
		outValue = value;
		return true;
		}

		void PropertyMap::addAll(const PropertyMap* map) {
		for (const auto& [key, value] : map->mProperties) {
		mProperties.emplace(key, value);

services/inputflinger/reader/mapper/TouchpadInputMapper.cpp

+6 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@
		#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>
		@@ -216,6 +217,11 @@ void TouchpadInputMapper::dump(std::string& dump) {
		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;

services/inputflinger/reader/mapper/gestures/PropertyProvider.cpp

+76 −0

Original line number	Diff line number	Diff line
		@@ -84,6 +84,29 @@ std::string PropertyProvider::dump() const {
		return dump;
		}

		void PropertyProvider::loadPropertiesFromIdcFile(const PropertyMap& idcProperties) {
		// For compatibility with the configuration file syntax, gesture property names in IDC files are
		// prefixed with "gestureProp." and have spaces replaced by underscores. So, for example, the
		// configuration key "gestureProp.Palm_Width" refers to the "Palm Width" property.
		const std::string gesturePropPrefix = "gestureProp.";
		for (const std::string key : idcProperties.getKeysWithPrefix(gesturePropPrefix)) {
		std::string propertyName = key.substr(gesturePropPrefix.length());
		for (size_t i = 0; i < propertyName.length(); i++) {
		if (propertyName[i] == '_') {
		propertyName[i] = ' ';
		}
		}

		auto it = mProperties.find(propertyName);
		if (it != mProperties.end()) {
		it->second.trySetFromIdcProperty(idcProperties, key);
		} else {
		ALOGE("Gesture property \"%s\" specified in IDC file does not exist for this device.",
		propertyName.c_str());
		}
		}
		}

		GesturesProp* PropertyProvider::createIntArrayProperty(const std::string& name, int* loc,
		size_t count, const int* init) {
		const auto [it, inserted] =
		@@ -211,6 +234,59 @@ void GesturesProp::setRealValues(const std::vector<double>& values) {
		setValues(std::get<double*>(mDataPointer), values);
		}

		namespace {

		// Helper to std::visit with lambdas.
		template <typename... V>
		struct Visitor : V... {};
		// explicit deduction guide (not needed as of C++20)
		template <typename... V>
		Visitor(V...) -> Visitor<V...>;

		} // namespace

		void GesturesProp::trySetFromIdcProperty(const android::PropertyMap& idcProperties,
		const std::string& propertyName) {
		if (mCount != 1) {
		ALOGE("Gesture property \"%s\" is an array, and so cannot be set in an IDC file.",
		mName.c_str());
		return;
		}
		bool parsedSuccessfully = false;
		Visitor setVisitor{
		[&](int*) {
		int32_t value;
		parsedSuccessfully = idcProperties.tryGetProperty(propertyName, value);
		if (parsedSuccessfully) {
		setIntValues({value});
		}
		},
		[&](GesturesPropBool*) {
		bool value;
		parsedSuccessfully = idcProperties.tryGetProperty(propertyName, value);
		if (parsedSuccessfully) {
		setBoolValues({value});
		}
		},
		[&](double*) {
		double value;
		parsedSuccessfully = idcProperties.tryGetProperty(propertyName, value);
		if (parsedSuccessfully) {
		setRealValues({value});
		}
		},
		[&](const char**) {
		ALOGE("Gesture property \"%s\" is a string, and so cannot be set in an IDC file.",
		mName.c_str());
		},
		};
		std::visit(setVisitor, mDataPointer);

		ALOGE_IF(!parsedSuccessfully, "Gesture property \"%s\" could set due to a type mismatch.",
		mName.c_str());
		return;
		}

		template <typename T, typename U>
		const std::vector<T> GesturesProp::getValues(U* dataPointer) const {
		if (mGetter != nullptr) {