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ecbe9acbaa
Summary: @public Trivial. We move all components into `/components/` subdirectory. Reviewed By: mdvacca Differential Revision: D8757014 fbshipit-source-id: 9db94d38fe027e9125d017a17cbd4cf79f0bcf88
54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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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 <fabric/components/text/ParagraphShadowNode.h>
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#include <fabric/core/ConcreteComponentDescriptor.h>
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#include <fabric/textlayoutmanager/TextLayoutManager.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(SharedEventDispatcher eventDispatcher):
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ConcreteComponentDescriptor<ParagraphShadowNode>(eventDispatcher) {
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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>();
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}
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void adopt(UnsharedShadowNode shadowNode) const override {
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ConcreteComponentDescriptor<ParagraphShadowNode>::adopt(shadowNode);
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assert(std::dynamic_pointer_cast<ParagraphShadowNode>(shadowNode));
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auto paragraphShadowNode = 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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// 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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