mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
90ada5abb1
Summary: This diff changes API we use to measure text. Previously, a platform-specific measure infra returned just the size of the text, now it returns the size and an array of frames that describe where attachments are placed. Changelog: [Internal] Fabric-specific internal change. Reviewed By: sammy-SC Differential Revision: D20268041 fbshipit-source-id: 7c065607b6af18a36318db0aab24dad0f171d33a
59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its 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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#pragma once
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#include <react/attributedstring/AttributedString.h>
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#include <react/attributedstring/AttributedStringBox.h>
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#include <react/core/LayoutConstraints.h>
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#include <react/textlayoutmanager/TextMeasureCache.h>
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#include <react/utils/ContextContainer.h>
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namespace facebook {
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namespace react {
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class TextLayoutManager;
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using SharedTextLayoutManager = std::shared_ptr<const TextLayoutManager>;
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/*
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* Cross platform facade for Android-specific TextLayoutManager.
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*/
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class TextLayoutManager {
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public:
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TextLayoutManager(const ContextContainer::Shared &contextContainer)
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: contextContainer_(contextContainer){};
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~TextLayoutManager();
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/*
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* Measures `attributedString` using native text rendering infrastructure.
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*/
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TextMeasurement measure(
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AttributedStringBox attributedStringBox,
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ParagraphAttributes paragraphAttributes,
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LayoutConstraints layoutConstraints) const;
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/*
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* Returns an opaque pointer to platform-specific TextLayoutManager.
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* Is used on a native views layer to delegate text rendering to the manager.
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*/
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void *getNativeTextLayoutManager() const;
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private:
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TextMeasurement doMeasure(
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AttributedString attributedString,
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ParagraphAttributes paragraphAttributes,
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LayoutConstraints layoutConstraints) const;
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void *self_;
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ContextContainer::Shared contextContainer_;
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TextMeasureCache measureCache_{};
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};
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} // namespace react
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} // namespace facebook
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