mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Samuel Susla
d41e95fb1a
Summary: changelog: [internal] This diff introduces a mechanism to cache NSTextStorage on Paragraph's state. The old renderer already has caching for NSTextStorage: https://github.com/facebook/react-native/blob/main/Libraries/Text/Text/RCTTextShadowView.m#L21 Fabric will store `NSTextStorage` inside `ParagraphLayoutManager` which is owned by state. There is one notable change which is not gated: Paragraph's state strongly owns `TextLayoutManager`, not `ParagraphShadowNode` like previously. This shouldn't change anything Reviewed By: mdvacca Differential Revision: D43692171 fbshipit-source-id: efe6077222a30ab6d89abd9916534b9a96e745d4
48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
/*
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* Copyright (c) Meta Platforms, Inc. and 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 "TextLayoutManager.h"
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namespace facebook {
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namespace react {
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void *TextLayoutManager::getNativeTextLayoutManager() const {
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return (void *)this;
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}
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TextMeasurement TextLayoutManager::measure(
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AttributedStringBox attributedStringBox,
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ParagraphAttributes paragraphAttributes,
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LayoutConstraints layoutConstraints,
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std::shared_ptr<void>) const {
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TextMeasurement::Attachments attachments;
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for (auto const &fragment : attributedStringBox.getValue().getFragments()) {
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if (fragment.isAttachment()) {
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attachments.push_back(
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TextMeasurement::Attachment{{{0, 0}, {0, 0}}, false});
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}
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}
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return TextMeasurement{{0, 0}, attachments};
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}
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LinesMeasurements TextLayoutManager::measureLines(
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AttributedString attributedString,
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ParagraphAttributes paragraphAttributes,
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Size size) const {
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return {};
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};
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std::shared_ptr<void> TextLayoutManager::getHostTextStorage(
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AttributedString attributedString,
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ParagraphAttributes paragraphAttributes,
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LayoutConstraints layoutConstraints) const {
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return nullptr;
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}
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} // namespace react
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} // namespace facebook
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