136 lines
4.0 KiB
Objective-C
136 lines
4.0 KiB
Objective-C
//
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// DTHTMLElement.h
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// DTCoreText (WeRead custom fork)
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//
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// Reverse-engineered from WeChat Reading (微信读书) binary.
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// Represents a single HTML element in the DOM tree built during parsing.
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// Each node can produce an NSAttributedString via -attributedString.
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//
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#import <Foundation/Foundation.h>
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#import <UIKit/UIKit.h>
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@class DTTextAttachment;
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@class DTBorderStyle;
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@class DTBackgroundImageStyle;
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@class DTTableStyle;
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@class DTCSSStylesheet;
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@class DTCoreTextFontDescriptor;
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@class DTCoreTextParagraphStyle;
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// ---------------------------------------------------------------------------
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// DTHTMLElement
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// ---------------------------------------------------------------------------
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@interface DTHTMLElement : NSObject
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// --- Initialization ---
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- (instancetype)initWithTagName:(NSString *)tagName
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attributes:(NSDictionary *)attributes;
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// --- Tree structure ---
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@property (nonatomic, weak) DTHTMLElement *parent;
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@property (nonatomic, strong) NSMutableArray *children;
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// --- Tag identity ---
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@property (nonatomic, copy) NSString *tagName;
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@property (nonatomic, copy) NSString *elementId;
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@property (nonatomic, strong) NSArray *classNames;
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// --- Attributes & style ---
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@property (nonatomic, strong) NSDictionary *attributes;
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@property (nonatomic, strong) NSDictionary *styleDictionary;
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// --- Text content ---
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@property (nonatomic, copy) NSString *text;
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@property (nonatomic, strong) NSArray *textRuns;
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// --- Display properties ---
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@property (nonatomic, assign) BOOL isLineBreak;
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@property (nonatomic, assign) BOOL isBlockElement;
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@property (nonatomic, assign) BOOL shouldAvoidPageBreakInside;
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@property (nonatomic, assign) BOOL pageBreakAfter;
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@property (nonatomic, assign) BOOL pageBreakBefore;
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// --- Font & paragraph ---
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@property (nonatomic, strong) DTCoreTextFontDescriptor *fontDescriptor;
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@property (nonatomic, strong) DTCoreTextParagraphStyle *paragraphStyle;
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// --- Colors ---
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@property (nonatomic, strong) UIColor *textColor;
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@property (nonatomic, strong) UIColor *backgroundColor;
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// --- Links ---
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@property (nonatomic, strong) NSURL *linkURL;
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// --- Images & attachments ---
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@property (nonatomic, strong) NSURL *imageURL;
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@property (nonatomic, strong) DTTextAttachment *textAttachment;
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// --- WeRead-specific page layout properties ---
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@property (nonatomic, copy) NSString *verticalCenterStyle;
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@property (nonatomic, copy) NSString *pageRelate;
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@property (nonatomic, strong) UIColor *pageBackgroundColor;
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@property (nonatomic, copy) NSString *pageBackgroundImage;
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// --- Border & background ---
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@property (nonatomic, strong) DTBorderStyle *borderStyle;
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@property (nonatomic, strong) DTBackgroundImageStyle *backgroundImageStyle;
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@property (nonatomic, strong) DTTableStyle *tableStyle;
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// --- Additional string fields observed in ivars ---
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@property (nonatomic, copy) NSString *cssClass;
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@property (nonatomic, copy) NSString *cssId;
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@property (nonatomic, copy) NSString *lang;
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@property (nonatomic, copy) NSString *direction; // ltr / rtl
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@property (nonatomic, copy) NSString *whiteSpace;
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@property (nonatomic, copy) NSString *textAlign;
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// --- Public methods ---
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/**
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Applies a CSS style dictionary to this element, resolving font, color,
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paragraph style, etc.
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@param styleDict The CSS properties to apply.
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@param isLatin Whether the content language is Latin-script.
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*/
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- (void)applyStyleDictionary:(NSDictionary *)styleDict
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isLatinLanguageBook:(BOOL)isLatin;
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/**
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Recursively converts this element and its children into an NSAttributedString.
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@return The attributed string representing this subtree.
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*/
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- (NSAttributedString *)attributedString;
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/**
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Finalizes attributes after all children have been parsed.
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Called when the closing tag is encountered.
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*/
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- (void)interpretAttributes;
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/**
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Appends text content to this element (called during SAX foundCharacters:).
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*/
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- (void)appendText:(NSString *)text;
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/**
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Returns YES if this element is a void / self-closing element (img, br, hr, etc.)
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*/
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- (BOOL)isVoidElement;
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@end
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