mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Samuel Susla
8d6b41e9bc
Summary: Changelog: [Internal] Add `Text.onTextLayout` implementation Reviewed By: JoshuaGross Differential Revision: D22865139 fbshipit-source-id: 563084754ebdc9fb23463a306c526b97c61f85ec
64 lines
1.7 KiB
C++
64 lines
1.7 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.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <memory>
|
|
|
|
#include <react/renderer/attributedstring/AttributedStringBox.h>
|
|
#include <react/renderer/attributedstring/ParagraphAttributes.h>
|
|
#include <react/renderer/core/LayoutConstraints.h>
|
|
#include <react/renderer/textlayoutmanager/TextMeasureCache.h>
|
|
#include <react/utils/ContextContainer.h>
|
|
|
|
namespace facebook {
|
|
namespace react {
|
|
|
|
class TextLayoutManager;
|
|
|
|
using SharedTextLayoutManager = std::shared_ptr<const TextLayoutManager>;
|
|
|
|
/*
|
|
* Cross platform facade for iOS-specific RCTTTextLayoutManager.
|
|
*/
|
|
class TextLayoutManager {
|
|
public:
|
|
using Shared = std::shared_ptr<TextLayoutManager const>;
|
|
|
|
TextLayoutManager(ContextContainer::Shared const &contextContainer);
|
|
|
|
/*
|
|
* Measures `attributedString` using native text rendering infrastructure.
|
|
*/
|
|
TextMeasurement measure(
|
|
AttributedStringBox attributedStringBox,
|
|
ParagraphAttributes paragraphAttributes,
|
|
LayoutConstraints layoutConstraints) const;
|
|
|
|
/*
|
|
* Measures lines of `attributedString` using native text rendering
|
|
* infrastructure.
|
|
*/
|
|
LinesMeasurements measureLines(
|
|
AttributedString attributedString,
|
|
ParagraphAttributes paragraphAttributes,
|
|
Size size) const;
|
|
|
|
/*
|
|
* Returns an opaque pointer to platform-specific TextLayoutManager.
|
|
* Is used on a native views layer to delegate text rendering to the manager.
|
|
*/
|
|
std::shared_ptr<void> getNativeTextLayoutManager() const;
|
|
|
|
private:
|
|
std::shared_ptr<void> self_;
|
|
TextMeasureCache measureCache_{};
|
|
};
|
|
|
|
} // namespace react
|
|
} // namespace facebook
|