mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
36d895ce21
Summary: Read more about this in D18848583 (where it's implemented for iOS). This diff enables that for Android. Changelog: [Internal] Reviewed By: mdvacca Differential Revision: D18869823 fbshipit-source-id: ebdc863ec07268119d1cbbb911760532bb28ee04
59 lines
1.6 KiB
C++
59 lines
1.6 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 <react/attributedstring/AttributedString.h>
|
|
#include <react/attributedstring/AttributedStringBox.h>
|
|
#include <react/core/LayoutConstraints.h>
|
|
#include <react/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 Android-specific TextLayoutManager.
|
|
*/
|
|
class TextLayoutManager {
|
|
public:
|
|
TextLayoutManager(const ContextContainer::Shared &contextContainer)
|
|
: contextContainer_(contextContainer){};
|
|
~TextLayoutManager();
|
|
|
|
/*
|
|
* Measures `attributedString` using native text rendering infrastructure.
|
|
*/
|
|
Size measure(
|
|
AttributedStringBox attributedStringBox,
|
|
ParagraphAttributes paragraphAttributes,
|
|
LayoutConstraints layoutConstraints) const;
|
|
|
|
/*
|
|
* Returns an opaque pointer to platform-specific TextLayoutManager.
|
|
* Is used on a native views layer to delegate text rendering to the manager.
|
|
*/
|
|
void *getNativeTextLayoutManager() const;
|
|
|
|
private:
|
|
Size doMeasure(
|
|
AttributedString attributedString,
|
|
ParagraphAttributes paragraphAttributes,
|
|
LayoutConstraints layoutConstraints) const;
|
|
|
|
void *self_;
|
|
ContextContainer::Shared contextContainer_;
|
|
TextMeasureCache measureCache_{};
|
|
};
|
|
|
|
} // namespace react
|
|
} // namespace facebook
|