151 строка
4.5 KiB
C++
151 строка
4.5 KiB
C++
// Copyright 2004-present Facebook. All Rights Reserved.
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#include "UIManager.h"
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#include <react/core/ShadowNodeFragment.h>
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#include <react/debug/SystraceSection.h>
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#include <react/uimanager/TimeUtils.h>
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namespace facebook {
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namespace react {
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SharedShadowNode UIManager::createNode(
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Tag tag,
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const ComponentName &name,
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SurfaceId surfaceId,
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const RawProps &rawProps,
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SharedEventTarget eventTarget) const {
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SystraceSection s("UIManager::createNode");
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auto &componentDescriptor = componentDescriptorRegistry_->at(name);
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auto shadowNode = componentDescriptor.createShadowNode(
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{.tag = tag,
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.rootTag = surfaceId,
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.eventEmitter =
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componentDescriptor.createEventEmitter(std::move(eventTarget), tag),
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.props = componentDescriptor.cloneProps(nullptr, rawProps)});
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if (delegate_) {
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delegate_->uiManagerDidCreateShadowNode(shadowNode);
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}
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return std::const_pointer_cast<ShadowNode>(shadowNode);
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}
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SharedShadowNode UIManager::cloneNode(
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const SharedShadowNode &shadowNode,
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const SharedShadowNodeSharedList &children,
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const RawProps *rawProps) const {
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SystraceSection s("UIManager::cloneNode");
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auto &componentDescriptor =
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componentDescriptorRegistry_->at(shadowNode->getComponentHandle());
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auto clonedShadowNode = componentDescriptor.cloneShadowNode(
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*shadowNode,
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{
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.props = rawProps ? componentDescriptor.cloneProps(
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shadowNode->getProps(), *rawProps)
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: ShadowNodeFragment::nullSharedProps(),
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.children = children,
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});
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return std::const_pointer_cast<ShadowNode>(clonedShadowNode);
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}
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void UIManager::appendChild(
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const SharedShadowNode &parentShadowNode,
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const SharedShadowNode &childShadowNode) const {
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SystraceSection s("UIManager::appendChild");
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auto &componentDescriptor =
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componentDescriptorRegistry_->at(parentShadowNode->getComponentHandle());
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componentDescriptor.appendChild(parentShadowNode, childShadowNode);
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}
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void UIManager::completeSurface(
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SurfaceId surfaceId,
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const SharedShadowNodeUnsharedList &rootChildren) const {
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SystraceSection s("UIManager::completeSurface");
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if (delegate_) {
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delegate_->uiManagerDidFinishTransaction(
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surfaceId, rootChildren, getTime());
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}
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}
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void UIManager::setNativeProps(
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const SharedShadowNode &shadowNode,
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const RawProps &rawProps) const {
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SystraceSection s("UIManager::setNativeProps");
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long startCommitTime = getTime();
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auto &componentDescriptor =
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componentDescriptorRegistry_->at(shadowNode->getComponentHandle());
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auto props = componentDescriptor.cloneProps(shadowNode->getProps(), rawProps);
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auto newShadowNode = shadowNode->clone(ShadowNodeFragment{.props = props});
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shadowTreeRegistry_->visit(
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shadowNode->getRootTag(), [&](const ShadowTree &shadowTree) {
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shadowTree.tryCommit(
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[&](const SharedRootShadowNode &oldRootShadowNode) {
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return oldRootShadowNode->clone(shadowNode, newShadowNode);
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},
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startCommitTime);
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});
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}
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LayoutMetrics UIManager::getRelativeLayoutMetrics(
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const ShadowNode &shadowNode,
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const ShadowNode *ancestorShadowNode) const {
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SystraceSection s("UIManager::getRelativeLayoutMetrics");
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long startCommitTime = getTime();
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if (!ancestorShadowNode) {
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shadowTreeRegistry_->visit(
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shadowNode.getRootTag(), [&](const ShadowTree &shadowTree) {
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shadowTree.tryCommit(
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[&](const SharedRootShadowNode &oldRootShadowNode) {
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ancestorShadowNode = oldRootShadowNode.get();
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return nullptr;
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},
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startCommitTime);
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});
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}
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auto layoutableShadowNode =
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dynamic_cast<const LayoutableShadowNode *>(&shadowNode);
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auto layoutableAncestorShadowNode =
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dynamic_cast<const LayoutableShadowNode *>(ancestorShadowNode);
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if (!layoutableShadowNode || !layoutableAncestorShadowNode) {
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return EmptyLayoutMetrics;
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}
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return layoutableShadowNode->getRelativeLayoutMetrics(
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*layoutableAncestorShadowNode);
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}
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void UIManager::setShadowTreeRegistry(ShadowTreeRegistry *shadowTreeRegistry) {
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shadowTreeRegistry_ = shadowTreeRegistry;
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}
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void UIManager::setComponentDescriptorRegistry(
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const SharedComponentDescriptorRegistry &componentDescriptorRegistry) {
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componentDescriptorRegistry_ = componentDescriptorRegistry;
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}
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void UIManager::setDelegate(UIManagerDelegate *delegate) {
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delegate_ = delegate;
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}
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UIManagerDelegate *UIManager::getDelegate() {
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return delegate_;
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}
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} // namespace react
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} // namespace facebook
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