57 строки
1.4 KiB
C++
57 строки
1.4 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include <react/core/EventEmitter.h>
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#include <react/core/ReactPrimitives.h>
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namespace facebook {
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namespace react {
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class ShadowNodeFamily;
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/*
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* Note: All of the fields are `const &` references (essentially just raw
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* pointers) which means that the Fragment does not copy/store them nor
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* retain ownership of them.
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*/
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class ShadowNodeFamilyFragment final {
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public:
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static ShadowNodeFamilyFragment build(ShadowNodeFamily const &family);
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Tag const tag;
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SurfaceId const surfaceId;
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EventEmitter::Shared const &eventEmitter;
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/*
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* `ShadowNodeFamilyFragment` is not owning data-structure, it only stores raw
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* pointers to the data. `ShadowNodeFamilyFragment::Value` is a convenient
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* owning counterpart of that.
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*/
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class Value final {
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public:
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/*
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* Creates an object with given `ShadowNodeFragment`.
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*/
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Value(ShadowNodeFamilyFragment const &fragment);
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/*
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* Creates a `ShadowNodeFragment` from the object.
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*/
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explicit operator ShadowNodeFamilyFragment() const;
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private:
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Tag const tag_;
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SurfaceId const surfaceId_;
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EventEmitter::Shared const eventEmitter_;
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};
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};
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} // namespace react
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} // namespace facebook
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