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https://github.com/zhigang1992/react-native.git
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c937300f5d
Summary: Now it's parts of RootShadowNode and Scheduler. Reviewed By: sahrens Differential Revision: D13615364 fbshipit-source-id: 13dbea1e69ef51b2679101915c01c6be7e15d859
40 lines
1.2 KiB
C++
40 lines
1.2 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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#include "RootShadowNode.h"
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#include <react/components/view/conversions.h>
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#include <react/debug/SystraceSection.h>
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namespace facebook {
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namespace react {
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const char RootComponentName[] = "RootView";
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void RootShadowNode::layout() {
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SystraceSection s("RootShadowNode::layout");
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ensureUnsealed();
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layout(getProps()->layoutContext);
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// This is the rare place where shadow node must layout (set `layoutMetrics`)
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// itself because there is no a parent node which usually should do it.
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setLayoutMetrics(layoutMetricsFromYogaNode(yogaNode_));
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}
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UnsharedRootShadowNode RootShadowNode::clone(
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const LayoutConstraints &layoutConstraints,
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const LayoutContext &layoutContext) const {
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auto props = std::make_shared<const RootProps>(
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*getProps(), layoutConstraints, layoutContext);
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auto newRootShadowNode = std::make_shared<RootShadowNode>(
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*this, ShadowNodeFragment{.props = props});
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return newRootShadowNode;
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}
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} // namespace react
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} // namespace facebook
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