mirror of
https://github.com/zhigang1992/react-native.git
synced 2026-04-08 09:37:21 +08:00
7197aa026b
Summary: That's generally better because: * Avoids exposing ShadowNode to mounting layer; * Enables hashing and comparing the AttributedString based on actual meaningful data (not on just a pointer to ShadowNode). Reviewed By: mdvacca Differential Revision: D13205230 fbshipit-source-id: 7b79c1aad97b10d81e3faa10408be61b74f815cf
67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
/**
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
|
|
#include "BaseTextShadowNode.h"
|
|
|
|
#include <react/components/text/RawTextProps.h>
|
|
#include <react/components/text/RawTextShadowNode.h>
|
|
#include <react/components/text/TextProps.h>
|
|
#include <react/components/text/TextShadowNode.h>
|
|
#include <react/debug/DebugStringConvertibleItem.h>
|
|
#include <react/mounting/ShadowView.h>
|
|
|
|
namespace facebook {
|
|
namespace react {
|
|
|
|
AttributedString BaseTextShadowNode::getAttributedString(
|
|
const TextAttributes &textAttributes,
|
|
const SharedShadowNode &parentNode) const {
|
|
auto attributedString = AttributedString{};
|
|
|
|
for (const auto &childNode : parentNode->getChildren()) {
|
|
// RawShadowNode
|
|
auto rawTextShadowNode =
|
|
std::dynamic_pointer_cast<const RawTextShadowNode>(childNode);
|
|
if (rawTextShadowNode) {
|
|
auto fragment = AttributedString::Fragment{};
|
|
fragment.string = rawTextShadowNode->getProps()->text;
|
|
fragment.textAttributes = textAttributes;
|
|
|
|
// Storing a retaining pointer to `ParagraphShadowNode` inside
|
|
// `attributedString` causes a retain cycle (besides that fact that we
|
|
// don't need it at all). Storing a `ShadowView` instance instead of
|
|
// `ShadowNode` should properly fix this problem.
|
|
fragment.parentShadowView = ShadowView(*parentNode);
|
|
attributedString.appendFragment(fragment);
|
|
continue;
|
|
}
|
|
|
|
// TextShadowNode
|
|
auto textShadowNode =
|
|
std::dynamic_pointer_cast<const TextShadowNode>(childNode);
|
|
if (textShadowNode) {
|
|
auto localTextAttributes = textAttributes;
|
|
localTextAttributes.apply(textShadowNode->getProps()->textAttributes);
|
|
attributedString.appendAttributedString(
|
|
textShadowNode->getAttributedString(
|
|
localTextAttributes, textShadowNode));
|
|
continue;
|
|
}
|
|
|
|
// Any other kind of ShadowNode
|
|
auto fragment = AttributedString::Fragment{};
|
|
fragment.shadowView = ShadowView(*childNode);
|
|
fragment.textAttributes = textAttributes;
|
|
attributedString.appendFragment(fragment);
|
|
}
|
|
|
|
return attributedString;
|
|
}
|
|
|
|
} // namespace react
|
|
} // namespace facebook
|