mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Nick Lefever
8f2e981ab7
Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/51633 To fully support props diffing for a component, the component's Props implementation needs to implement the prop diffing for the derived class. Because all Props classes extend the ViewProps, all Props classes implement the `getDiffProps` function. To support testing that the props diffing implementation support all properties of the derived Props class for the component being mounted, this diff adds the virtual function `getDiffPropsImplementationTarget` which returns the `ComponentName` that the `getDiffProps` function supports. This removes the need for a hard-coded list of components that support props diffing and enables the use of codegen to conditionally enable props diffing. Changelog: [Internal] Reviewed By: javache Differential Revision: D75465020 fbshipit-source-id: 2850a76f1036cfe930c3c69b98d478ef86a2d457
68 lines
1.7 KiB
C++
68 lines
1.7 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 <limits>
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#include <memory>
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#include <react/renderer/attributedstring/ParagraphAttributes.h>
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#include <react/renderer/components/text/BaseTextProps.h>
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#include <react/renderer/components/view/ViewProps.h>
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#include <react/renderer/core/Props.h>
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#include <react/renderer/core/PropsParserContext.h>
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namespace facebook::react {
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/*
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* Props of <Paragraph> component.
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* Most of the props are directly stored in composed `ParagraphAttributes`
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* object.
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*/
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class ParagraphProps : public ViewProps, public BaseTextProps {
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public:
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ParagraphProps() = default;
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ParagraphProps(
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const PropsParserContext& context,
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const ParagraphProps& sourceProps,
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const RawProps& rawProps);
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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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const RawValue& value);
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#pragma mark - Props
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/*
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* Contains all prop values that affect visual representation of the
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* paragraph.
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*/
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ParagraphAttributes paragraphAttributes{};
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/*
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* Defines can the text be selected (and copied) or not.
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*/
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bool isSelectable{};
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bool onTextLayout{};
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#pragma mark - DebugStringConvertible
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#if RN_DEBUG_STRING_CONVERTIBLE
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SharedDebugStringConvertibleList getDebugProps() const override;
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#endif
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#ifdef RN_SERIALIZABLE_STATE
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ComponentName getDiffPropsImplementationTarget() const override;
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folly::dynamic getDiffProps(const Props* prevProps) const override;
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#endif
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};
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} // namespace facebook::react
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