mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Ruslan Shestopalyuk
403fea25f6
Summary: Instead of having a special flag just for View MapBuffer props, we now use one flag to indicate that MapBuffer should be used for all props; each XShadowNode must set a special trait indicating if that ShadowNode supports MapBuffer props. Changelog: [Internal] Reviewed By: mdvacca Differential Revision: D38708718 fbshipit-source-id: b398ec62a0db9c0ff23c0007c5503cf2838c4173
79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
/*
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* Copyright (c) Meta Platforms, Inc. and 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 <folly/dynamic.h>
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#include <react/renderer/core/PropsMacros.h>
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#include <react/renderer/core/PropsParserContext.h>
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#include <react/renderer/core/RawProps.h>
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#include <react/renderer/core/ReactPrimitives.h>
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#include <react/renderer/core/Sealable.h>
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#include <react/renderer/debug/DebugStringConvertible.h>
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namespace facebook {
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namespace react {
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/*
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* Represents the most generic props object.
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*/
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class Props : public virtual Sealable, public virtual DebugStringConvertible {
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public:
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using Shared = std::shared_ptr<Props const>;
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Props() = default;
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Props(
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const PropsParserContext &context,
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const Props &sourceProps,
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RawProps const &rawProps,
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bool shouldSetRawProps = true);
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virtual ~Props() = default;
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static bool enablePropIteratorSetter;
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// This is used as a feature flag for *all* PropsX structs.
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// For MapBuffer to be used for a particular component instance,
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// its ShadowNode traits must set the MapBuffer trait; and this
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// must be set to "true" globally.
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static bool enableMapBuffer;
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/**
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* Set a prop value via iteration (see enableIterator above).
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* If setProp is defined for a particular props struct, it /must/
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* be called every time setProp is called on the hierarchy.
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* For example, ViewProps overrides setProp and so ViewProps must
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* explicitly call Props::setProp every time ViewProps::setProp is
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* called. This is because a single prop from JS can be reused
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* multiple times for different values in the hierarchy. For example, if
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* ViewProps uses "propX", Props may also use "propX".
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*/
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void setProp(
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const PropsParserContext &context,
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RawPropsPropNameHash hash,
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const char *propName,
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RawValue const &value);
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std::string nativeId;
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/*
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* Special value that represents generation number of `Props` object, which
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* increases when the object was constructed with some source `Props` object.
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* Default props objects (that was constructed using default constructor) have
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* revision equals `0`.
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* The value might be used for optimization purposes.
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*/
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int const revision{0};
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#ifdef ANDROID
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folly::dynamic rawProps = folly::dynamic::object();
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#endif
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};
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} // namespace react
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} // namespace facebook
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