mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Jiayan Zhuang
550c66ea64
Summary: Changelog: [Internal] - Change the accessibilityRole from a string to an enum. The change aims to save storage especially when scaling. Also, the enum makes it more difficult to input wrong because it gets checked when compiling. Reviewed By: sammy-SC Differential Revision: D22396351 fbshipit-source-id: b46ce0bd156c7705020ef5b061d8ac29e2cf3948
136 lines
4.2 KiB
C++
136 lines
4.2 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 <functional>
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#include <limits>
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#include <folly/Hash.h>
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#include <folly/Optional.h>
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#include <react/attributedstring/primitives.h>
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#include <react/core/LayoutPrimitives.h>
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#include <react/core/ReactPrimitives.h>
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#include <react/debug/DebugStringConvertible.h>
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#include <react/graphics/Color.h>
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#include <react/graphics/Geometry.h>
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namespace facebook {
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namespace react {
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class TextAttributes;
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using SharedTextAttributes = std::shared_ptr<const TextAttributes>;
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class TextAttributes : public DebugStringConvertible {
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public:
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/*
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* Returns TextAttribute object which has actual default attribute values
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* (e.g. `foregroundColor = black`), in oppose to TextAttribute's default
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* constructor which creates an object with nulled attributes.
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*/
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static TextAttributes defaultTextAttributes();
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#pragma mark - Fields
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// Color
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SharedColor foregroundColor{};
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SharedColor backgroundColor{};
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Float opacity{std::numeric_limits<Float>::quiet_NaN()};
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// Font
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std::string fontFamily{""};
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Float fontSize{std::numeric_limits<Float>::quiet_NaN()};
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Float fontSizeMultiplier{std::numeric_limits<Float>::quiet_NaN()};
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folly::Optional<FontWeight> fontWeight{};
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folly::Optional<FontStyle> fontStyle{};
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folly::Optional<FontVariant> fontVariant{};
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folly::Optional<bool> allowFontScaling{};
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Float letterSpacing{std::numeric_limits<Float>::quiet_NaN()};
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// Paragraph Styles
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Float lineHeight{std::numeric_limits<Float>::quiet_NaN()};
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folly::Optional<TextAlignment> alignment{};
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folly::Optional<WritingDirection> baseWritingDirection{};
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// Decoration
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SharedColor textDecorationColor{};
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folly::Optional<TextDecorationLineType> textDecorationLineType{};
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folly::Optional<TextDecorationLineStyle> textDecorationLineStyle{};
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folly::Optional<TextDecorationLinePattern> textDecorationLinePattern{};
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// Shadow
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// TODO: Use `Point` type instead of `Size` for `textShadowOffset` attribute.
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folly::Optional<Size> textShadowOffset{};
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Float textShadowRadius{std::numeric_limits<Float>::quiet_NaN()};
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SharedColor textShadowColor{};
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// Special
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folly::Optional<bool> isHighlighted{};
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// TODO T59221129: document where this value comes from and how it is set.
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// It's not clear if this is being used properly, or if it's being set at all.
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// Currently, it is intentionally *not* being set as part of BaseTextProps
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// construction.
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folly::Optional<LayoutDirection> layoutDirection{};
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folly::Optional<AccessibilityRole> accessibilityRole{};
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#pragma mark - Operations
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void apply(TextAttributes textAttributes);
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#pragma mark - Operators
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bool operator==(const TextAttributes &rhs) const;
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bool operator!=(const TextAttributes &rhs) const;
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#pragma mark - DebugStringConvertible
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#if RN_DEBUG_STRING_CONVERTIBLE
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SharedDebugStringConvertibleList getDebugProps() const override;
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#endif
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};
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} // namespace react
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} // namespace facebook
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namespace std {
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template <>
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struct hash<facebook::react::TextAttributes> {
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size_t operator()(
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const facebook::react::TextAttributes &textAttributes) const {
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return folly::hash::hash_combine(
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0,
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textAttributes.foregroundColor,
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textAttributes.backgroundColor,
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textAttributes.opacity,
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textAttributes.fontFamily,
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textAttributes.fontSize,
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textAttributes.fontSizeMultiplier,
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textAttributes.fontWeight,
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textAttributes.fontStyle,
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textAttributes.fontVariant,
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textAttributes.allowFontScaling,
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textAttributes.letterSpacing,
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textAttributes.lineHeight,
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textAttributes.alignment,
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textAttributes.baseWritingDirection,
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textAttributes.textDecorationColor,
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textAttributes.textDecorationLineType,
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textAttributes.textDecorationLineStyle,
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textAttributes.textDecorationLinePattern,
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textAttributes.textShadowOffset,
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textAttributes.textShadowRadius,
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textAttributes.textShadowColor,
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textAttributes.isHighlighted,
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textAttributes.layoutDirection,
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textAttributes.accessibilityRole);
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}
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};
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} // namespace std
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