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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/react-native/ReactCommon/react/renderer/components/view
Просмотр файла: BaseTouch.h
/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
#include <jsi/jsi.h>
#include <react/renderer/core/ReactPrimitives.h>
#include <react/renderer/debug/DebugStringConvertible.h>
#include <react/renderer/graphics/Point.h>
namespace facebook::react {
/*
* Describes an individual touch point for a touch event.
* See https://www.w3.org/TR/touch-events/ for more details.
*/
struct BaseTouch {
/*
* The coordinate of point relative to the root component in points.
*/
Point pagePoint;
/*
* The coordinate of point relative to the target component in points.
*/
Point offsetPoint;
/*
* The coordinate of point relative to the screen component in points.
*/
Point screenPoint;
/*
* An identification number for each touch point.
*/
int identifier;
/*
* The tag of a component on which the touch point started when it was first
* placed on the surface, even if the touch point has since moved outside the
* interactive area of that element.
*/
Tag target;
/*
* The force of the touch.
*/
Float force;
/*
* The time in seconds when the touch occurred or when it was last mutated.
*/
Float timestamp;
/*
* The particular implementation of `Hasher` and (especially) `Comparator`
* make sense only when `Touch` object is used as a *key* in indexed
* collections. Because of that they are expressed as separate classes.
*/
struct Hasher {
size_t operator()(const BaseTouch& touch) const {
return std::hash<decltype(touch.identifier)>()(touch.identifier);
}
};
struct Comparator {
bool operator()(const BaseTouch& lhs, const BaseTouch& rhs) const {
return lhs.identifier == rhs.identifier;
}
};
};
void setTouchPayloadOnObject(
jsi::Object& object,
jsi::Runtime& runtime,
const BaseTouch& touch);
#if RN_DEBUG_STRING_CONVERTIBLE
std::string getDebugName(const BaseTouch& touch);
std::vector<DebugStringConvertibleObject> getDebugProps(
const BaseTouch& touch,
DebugStringConvertibleOptions options);
#endif
} // namespace facebook::react
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