64 lines
1.8 KiB
C++
64 lines
1.8 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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#include "ParagraphShadowNode.h"
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#include <fabric/debug/DebugStringConvertibleItem.h>
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#import "ParagraphLocalData.h"
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namespace facebook {
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namespace react {
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ComponentName ParagraphShadowNode::getComponentName() const {
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return ComponentName("Paragraph");
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}
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SharedTextShadowNode ParagraphShadowNode::getTextChildNode() const {
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// <Paragraph> component must always have a single <Text> child component.
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assert(getChildren()->size() == 1);
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auto childNode = getChildren()->front();
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assert(std::dynamic_pointer_cast<const TextShadowNode>(childNode));
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return std::static_pointer_cast<const TextShadowNode>(childNode);
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}
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AttributedString ParagraphShadowNode::getAttributedString() const {
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return getTextChildNode()->getAttributedString(TextAttributes());
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}
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void ParagraphShadowNode::setTextLayoutManager(SharedTextLayoutManager textLayoutManager) {
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ensureUnsealed();
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textLayoutManager_ = textLayoutManager;
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}
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void ParagraphShadowNode::updateLocalData() {
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ensureUnsealed();
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auto localData = std::make_shared<ParagraphLocalData>();
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localData->setAttributedString(getAttributedString());
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localData->setTextLayoutManager(textLayoutManager_);
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setLocalData(localData);
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}
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#pragma mark - LayoutableShadowNode
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Size ParagraphShadowNode::measure(LayoutConstraints layoutConstraints) const {
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return textLayoutManager_->measure(
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getAttributedString(),
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getProps()->getParagraphAttributes(),
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layoutConstraints
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);
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}
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void ParagraphShadowNode::layout(LayoutContext layoutContext) {
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updateLocalData();
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ConcreteViewShadowNode<ParagraphProps>::layout(layoutContext);
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}
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} // namespace react
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} // namespace facebook
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