react-native/ReactCommon/fabric/core/layout/LayoutContext.h

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C++

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* 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 <unordered_set>
#include <fabric/core/LayoutableShadowNode.h>
#include <fabric/graphics/Geometry.h>
namespace facebook {
namespace react {
/*
* LayoutContext: Additional contextual information useful for particular
* layout approaches.
*/
struct LayoutContext {
/*
* Compound absolute position of the node relative to the root node.
*/
Point absolutePosition {0, 0};
/*
* Collection of shadow nodes which were chanded during the layout pass,
* and which associated views might need to be updated.
*/
std::shared_ptr<std::unordered_set<SharedLayoutableShadowNode>> affectedShadowNodes {nullptr};
};
} // namespace react
} // namespace facebook