mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
9570d7d490
Summary: I was watching a classic magnificent talk about modern C++ by Herb Sutter and I was totally sold on double down on using `auto` in our codebase. Surprisingly, 95% of the code base already follows Herb's guidence; I just changed the last 5% to make it consistent. All those changes must work *exactly* like it was before. The talk: https://youtu.be/xnqTKD8uD64?t=28m25s Reviewed By: mdvacca Differential Revision: D9753301 fbshipit-source-id: 9629aa485a5d6e51806cc96306c297284d4f90b8
134 lines
3.5 KiB
C++
134 lines
3.5 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 "LayoutableShadowNode.h"
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#include <fabric/core/LayoutConstraints.h>
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#include <fabric/core/LayoutContext.h>
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#include <fabric/core/LayoutMetrics.h>
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#include <fabric/debug/DebugStringConvertibleItem.h>
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#include <fabric/graphics/conversions.h>
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namespace facebook {
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namespace react {
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LayoutMetrics LayoutableShadowNode::getLayoutMetrics() const {
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return layoutMetrics_;
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}
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bool LayoutableShadowNode::setLayoutMetrics(LayoutMetrics layoutMetrics) {
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if (layoutMetrics_ == layoutMetrics) {
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return false;
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}
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ensureUnsealed();
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layoutMetrics_ = layoutMetrics;
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return true;
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}
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bool LayoutableShadowNode::LayoutableShadowNode::isLayoutOnly() const {
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return false;
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}
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void LayoutableShadowNode::cleanLayout() {
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isLayoutClean_ = true;
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}
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void LayoutableShadowNode::dirtyLayout() {
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isLayoutClean_ = false;
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}
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bool LayoutableShadowNode::getIsLayoutClean() const {
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return isLayoutClean_;
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}
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bool LayoutableShadowNode::getHasNewLayout() const {
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return hasNewLayout_;
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};
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void LayoutableShadowNode::setHasNewLayout(bool hasNewLayout) {
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hasNewLayout_ = hasNewLayout;
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}
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Size LayoutableShadowNode::measure(LayoutConstraints layoutConstraints) const {
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return Size();
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}
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Float LayoutableShadowNode::firstBaseline(Size size) const {
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return 0;
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}
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Float LayoutableShadowNode::lastBaseline(Size size) const {
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return 0;
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}
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void LayoutableShadowNode::layout(LayoutContext layoutContext) {
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layoutChildren(layoutContext);
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for (auto child : getLayoutableChildNodes()) {
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if (!child->getHasNewLayout()) {
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continue;
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}
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child->ensureUnsealed();
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child->setHasNewLayout(false);
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const auto childLayoutMetrics = child->getLayoutMetrics();
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if (childLayoutMetrics.displayType == DisplayType::None) {
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continue;
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}
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auto childLayoutContext = LayoutContext(layoutContext);
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childLayoutContext.absolutePosition += childLayoutMetrics.frame.origin;
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child->layout(layoutContext);
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}
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}
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void LayoutableShadowNode::layoutChildren(LayoutContext layoutContext) {
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// Default implementation does nothing.
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}
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SharedDebugStringConvertibleList LayoutableShadowNode::getDebugProps() const {
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auto list = SharedDebugStringConvertibleList {};
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if (getHasNewLayout()) {
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list.push_back(std::make_shared<DebugStringConvertibleItem>("hasNewLayout"));
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}
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if (!getIsLayoutClean()) {
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list.push_back(std::make_shared<DebugStringConvertibleItem>("dirty"));
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}
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auto layoutMetrics = getLayoutMetrics();
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auto defaultLayoutMetrics = LayoutMetrics();
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list.push_back(std::make_shared<DebugStringConvertibleItem>("frame", toString(layoutMetrics.frame)));
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if (layoutMetrics.borderWidth != defaultLayoutMetrics.borderWidth) {
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list.push_back(std::make_shared<DebugStringConvertibleItem>("borderWidth", toString(layoutMetrics.borderWidth)));
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}
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if (layoutMetrics.contentInsets != defaultLayoutMetrics.contentInsets) {
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list.push_back(std::make_shared<DebugStringConvertibleItem>("contentInsets", toString(layoutMetrics.contentInsets)));
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}
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if (layoutMetrics.displayType == DisplayType::None) {
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list.push_back(std::make_shared<DebugStringConvertibleItem>("hidden"));
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}
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if (layoutMetrics.layoutDirection == LayoutDirection::RightToLeft) {
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list.push_back(std::make_shared<DebugStringConvertibleItem>("rtl"));
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}
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return list;
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}
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} // namespace react
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} // namespace facebook
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