mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Joshua Gross
c75e8ae4ff
Summary: 1. Split out the prop interpolation function out of the View ComponentDescriptor, into an inline'd function that can be used elsewhere. 2. Call it from View and from Paragraph component descriptors. This causes animations including Text to look normal on iOS. Changelog: [Internal] Reviewed By: mdvacca Differential Revision: D21675804 fbshipit-source-id: c34a317749fd6c108aef072d47f3dcb14ce8aa5c
71 lines
2.2 KiB
C++
71 lines
2.2 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 "ParagraphShadowNode.h"
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#include <react/components/view/ViewPropsInterpolation.h>
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#include <react/config/ReactNativeConfig.h>
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#include <react/core/ConcreteComponentDescriptor.h>
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#include <react/textlayoutmanager/TextLayoutManager.h>
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#include <react/utils/ContextContainer.h>
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namespace facebook {
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namespace react {
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/*
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* Descriptor for <Paragraph> component.
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*/
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class ParagraphComponentDescriptor final
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: public ConcreteComponentDescriptor<ParagraphShadowNode> {
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public:
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ParagraphComponentDescriptor(ComponentDescriptorParameters const ¶meters)
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: ConcreteComponentDescriptor<ParagraphShadowNode>(parameters) {
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// Every single `ParagraphShadowNode` will have a reference to
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// a shared `TextLayoutManager`.
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textLayoutManager_ = std::make_shared<TextLayoutManager>(contextContainer_);
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}
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virtual SharedProps interpolateProps(
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float animationProgress,
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const SharedProps &props,
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const SharedProps &newProps) const override {
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SharedProps interpolatedPropsShared = cloneProps(newProps, {});
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interpolateViewProps(
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animationProgress, props, newProps, interpolatedPropsShared);
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return interpolatedPropsShared;
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};
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protected:
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void adopt(UnsharedShadowNode shadowNode) const override {
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ConcreteComponentDescriptor::adopt(shadowNode);
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assert(std::dynamic_pointer_cast<ParagraphShadowNode>(shadowNode));
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auto paragraphShadowNode =
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std::static_pointer_cast<ParagraphShadowNode>(shadowNode);
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// `ParagraphShadowNode` uses `TextLayoutManager` to measure text content
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// and communicate text rendering metrics to mounting layer.
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paragraphShadowNode->setTextLayoutManager(textLayoutManager_);
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paragraphShadowNode->dirtyLayout();
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// All `ParagraphShadowNode`s must have leaf Yoga nodes with properly
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// setup measure function.
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paragraphShadowNode->enableMeasurement();
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}
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private:
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SharedTextLayoutManager textLayoutManager_;
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};
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} // namespace react
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} // namespace facebook
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