98 lines
3.0 KiB
Objective-C
98 lines
3.0 KiB
Objective-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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#import <UIKit/UIKit.h>
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#import <React/RCTTextDecorationLineType.h>
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#import "RCTTextTransform.h"
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NS_ASSUME_NONNULL_BEGIN
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extern NSString *const RCTTextAttributesIsHighlightedAttributeName;
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extern NSString *const RCTTextAttributesTagAttributeName;
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/**
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* Represents knowledge about all supported *text* attributes
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* assigned to some text component such as <Text>, <VirtualText>,
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* and <TextInput>.
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*/
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@interface RCTTextAttributes : NSObject <NSCopying>
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// Color
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@property (nonatomic, strong, nullable) UIColor *foregroundColor;
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@property (nonatomic, strong, nullable) UIColor *backgroundColor;
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@property (nonatomic, assign) CGFloat opacity;
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// Font
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@property (nonatomic, copy, nullable) NSString *fontFamily;
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@property (nonatomic, assign) CGFloat fontSize;
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@property (nonatomic, assign) CGFloat fontSizeMultiplier;
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@property (nonatomic, assign) CGFloat maxFontSizeMultiplier;
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@property (nonatomic, copy, nullable) NSString *fontWeight;
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@property (nonatomic, copy, nullable) NSString *fontStyle;
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@property (nonatomic, copy, nullable) NSArray<NSString *> *fontVariant;
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@property (nonatomic, assign) BOOL allowFontScaling;
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@property (nonatomic, assign) CGFloat letterSpacing;
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// Paragraph Styles
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@property (nonatomic, assign) CGFloat lineHeight;
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@property (nonatomic, assign) NSTextAlignment alignment;
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@property (nonatomic, assign) NSWritingDirection baseWritingDirection;
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// Decoration
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@property (nonatomic, strong, nullable) UIColor *textDecorationColor;
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@property (nonatomic, assign) NSUnderlineStyle textDecorationStyle;
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@property (nonatomic, assign) RCTTextDecorationLineType textDecorationLine;
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// Shadow
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@property (nonatomic, assign) CGSize textShadowOffset;
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@property (nonatomic, assign) CGFloat textShadowRadius;
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@property (nonatomic, strong, nullable) UIColor *textShadowColor;
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// Special
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@property (nonatomic, assign) BOOL isHighlighted;
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@property (nonatomic, strong, nullable) NSNumber *tag;
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@property (nonatomic, assign) UIUserInterfaceLayoutDirection layoutDirection;
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@property (nonatomic, assign) RCTTextTransform textTransform;
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#pragma mark - Inheritance
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- (void)applyTextAttributes:(RCTTextAttributes *)textAttributes;
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#pragma mark - Adapters
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/**
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* Text attributes in NSAttributedString terms.
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*/
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- (NSDictionary<NSAttributedStringKey, id> *)effectiveTextAttributes;
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/**
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* Constructed paragraph style.
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*/
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- (NSParagraphStyle *_Nullable)effectiveParagraphStyle;
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/**
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* Constructed font.
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*/
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- (UIFont *)effectiveFont;
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/**
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* Font size multiplier reflects `allowFontScaling`, `fontSizeMultiplier`, and `maxFontSizeMultiplier`.
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*/
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- (CGFloat)effectiveFontSizeMultiplier;
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/**
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* Foreground and background colors with opacity and right defaults.
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*/
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- (UIColor *)effectiveForegroundColor;
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- (UIColor *)effectiveBackgroundColor;
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/**
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* Text transformed per 'none', 'uppercase', 'lowercase', 'capitalize'
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*/
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- (NSString *)applyTextAttributesToText:(NSString *)text;
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@end
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NS_ASSUME_NONNULL_END
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