react-native/ReactCommon/fabric/text/paragraph/ParagraphShadowNode.cpp
Valentin Shergin dd3a6eda70 Fabric: Devirtualizing of props parsing infra
Summary:
This diff contains several tight to each other changes (which can/should not be split into several diffs):
 * The props parsing/conversion process was de-virtualized: we don't use virtual `apply` method to parse props anymore. Instead, we use old-fashioned constructors.
 * All fields of Props classes which represent props values were marked as `const` which make impossible to modify them after the objects were created (even if we have non-const value-of/pointer-to the whole Props object). Those fields are also `public` now.
 * All custom handwritten getters were removed (because we don't need them anymore).

So, now we don't need all those custom getters which makes code much more compact, performant and codegen-friendly.

Reviewed By: fkgozali

Differential Revision: D7901245

fbshipit-source-id: 9f4b1fd2da64bf963b63215ed3bd74b9d3c58dd5
2018-05-14 16:03:49 -07:00

56 lines
1.4 KiB
C++

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#include "ParagraphShadowNode.h"
#include <fabric/debug/DebugStringConvertibleItem.h>
#import "ParagraphLocalData.h"
namespace facebook {
namespace react {
ComponentName ParagraphShadowNode::getComponentName() const {
return ComponentName("Paragraph");
}
AttributedString ParagraphShadowNode::getAttributedString() const {
return BaseTextShadowNode::getAttributedString(getProps()->textAttributes, getChildren());
}
void ParagraphShadowNode::setTextLayoutManager(SharedTextLayoutManager textLayoutManager) {
ensureUnsealed();
textLayoutManager_ = textLayoutManager;
}
void ParagraphShadowNode::updateLocalData() {
ensureUnsealed();
auto localData = std::make_shared<ParagraphLocalData>();
localData->setAttributedString(getAttributedString());
localData->setTextLayoutManager(textLayoutManager_);
setLocalData(localData);
}
#pragma mark - LayoutableShadowNode
Size ParagraphShadowNode::measure(LayoutConstraints layoutConstraints) const {
return textLayoutManager_->measure(
getAttributedString(),
getProps()->paragraphAttributes,
layoutConstraints
);
}
void ParagraphShadowNode::layout(LayoutContext layoutContext) {
updateLocalData();
ConcreteViewShadowNode<ParagraphProps>::layout(layoutContext);
}
} // namespace react
} // namespace facebook