169 lines
5.7 KiB
Objective-C
169 lines
5.7 KiB
Objective-C
//
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// WRPageView.h
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// WeRead (微信读书)
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//
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// Reverse-engineered header reconstruction.
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// The page rendering view. Inherits UIView. Uses CoreText direct drawing
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// via drawRect: — does NOT use UILabel or UITextView for body text.
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// Handles text selection via CoreText hit testing.
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//
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#import <UIKit/UIKit.h>
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@class WRActivityIndicator;
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@class WRLoadingProgressView;
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@class WRFriendReviewsButton;
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@class WRCoreTextLayoutFrame;
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@class WRChapterData;
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NS_ASSUME_NONNULL_BEGIN
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// ============================================================================
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#pragma mark - WRPageViewDelegate
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// ============================================================================
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@protocol WRPageViewDelegate <NSObject>
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@optional
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/// Called when the user taps a link or internal reference.
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- (void)pageView:(WRPageView *)pageView didTapLinkWithURL:(NSURL *)url;
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/// Called when the user long-presses to initiate text selection.
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- (void)pageView:(WRPageView *)pageView didBeginSelectionAtPoint:(CGPoint)point;
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/// Called when text selection changes.
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- (void)pageView:(WRPageView *)pageView selectionDidChangeWithRange:(NSRange)range;
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/// Called when the user taps the friend reviews button.
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- (void)pageView:(WRPageView *)pageView didTapFriendReviewsWithCount:(NSUInteger)count;
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/// Called when the page needs to reload its content.
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- (void)pageViewNeedsReload:(WRPageView *)pageView;
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@end
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// ============================================================================
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#pragma mark - WRPageView
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// ============================================================================
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@interface WRPageView : UIView
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// ---- Delegate ----
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@property (nonatomic, weak, nullable) id<WRPageViewDelegate> delegate;
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// ---- Content ----
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/// The chapter data driving this page's content.
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@property (nonatomic, strong, nullable) WRChapterData *chapterData;
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/// The page index within the chapter (0-based).
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@property (nonatomic, assign) NSUInteger pageIndex;
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/// The layout frame used for CoreText rendering.
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@property (nonatomic, strong, nullable) WRCoreTextLayoutFrame *layoutFrame;
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// ---- Ivars reconstructed from binary (NSArray, NSMutableArray, etc.) ----
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/// Array of attachment image descriptors (rects, image refs) for inline images.
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@property (nonatomic, strong, nullable) NSArray *imageAttachments;
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/// Mutable array tracking visible highlight/underline ranges.
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@property (nonatomic, strong, nullable) NSMutableArray *visibleHighlights;
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/// Timer for auto-read advance.
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@property (nonatomic, strong, nullable) NSTimer *autoReadTimer;
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/// Timer for loading timeout.
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@property (nonatomic, strong, nullable) NSTimer *loadingTimeoutTimer;
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/// Current chapter identifier string.
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@property (nonatomic, copy, nullable) NSString *chapterId;
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// ---- UI Elements (non-text, overlaid on the CoreText layer) ----
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/// Header label showing chapter title or page number.
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@property (nonatomic, strong, nullable) UILabel *headerLabel;
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/// Background/decorative image view.
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@property (nonatomic, strong, nullable) UIImageView *backgroundImageView;
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/// Loading activity indicator.
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@property (nonatomic, strong, nullable) WRActivityIndicator *activityIndicator;
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/// Error / empty-state message label.
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@property (nonatomic, strong, nullable) UILabel *statusLabel;
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/// Retry button shown on error.
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@property (nonatomic, strong, nullable) QMUIButton *retryButton;
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/// Share button.
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@property (nonatomic, strong, nullable) QMUIButton *shareButton;
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/// Loading progress view (thin bar at top or bottom).
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@property (nonatomic, strong, nullable) WRLoadingProgressView *loadingProgressView;
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/// Bookmark toggle button.
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@property (nonatomic, strong, nullable) QMUIButton *bookmarkButton;
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/// Font size increase button (toolbar).
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@property (nonatomic, strong, nullable) QMUIButton *fontSizeUpButton;
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/// Font size decrease button (toolbar).
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@property (nonatomic, strong, nullable) QMUIButton *fontSizeDownButton;
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/// Friend reviews / notes button.
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@property (nonatomic, strong, nullable) WRFriendReviewsButton *friendReviewsButton;
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// ---- Selection state ----
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/// Whether the view is currently in text-selection mode.
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@property (nonatomic, assign, readonly) BOOL isSelecting;
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/// The currently selected string range (NSNotFound if none).
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@property (nonatomic, assign, readonly) NSRange selectedRange;
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// ---- CoreText Drawing ----
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/// Main drawing entry point. Draws text and inline images directly into the
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/// CGContext using CoreText. Called by UIKit from -drawRect:.
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- (void)drawInContext:(CGContextRef)context
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withData:(WRChapterData *)chapterData
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size:(CGSize)size
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inRect:(CGRect)rect
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position:(CGPoint)position;
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// ---- Accessibility ----
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/// Overridden to provide a plain-text representation of the page content.
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- (nullable NSString *)accessibilityValue;
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/// Overridden to support VoiceOver page-scroll gestures.
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- (BOOL)accessibilityScroll:(UIAccessibilityScrollDirection)direction;
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// ---- Friend Reviews ----
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/// Updates the friend reviews button with the current count.
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- (void)friendReviewsCount:(NSUInteger)count;
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// ---- Loading / Error States ----
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/// Shows the loading indicator and optional progress bar.
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- (void)showLoadingWithProgress:(float)progress;
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/// Hides loading indicators.
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- (void)hideLoading;
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/// Shows an error state with a message and retry button.
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- (void)showErrorWithMessage:(NSString *)message;
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// ---- Text Selection (CoreText hit-testing) ----
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/// Converts a point in the view to a string index using CTLineGetStringIndexForPosition.
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- (NSInteger)stringIndexForPoint:(CGPoint)point;
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/// Returns the character range for the line containing the given string index.
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- (NSRange)lineRangeForStringIndex:(NSInteger)index;
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/// Clears the current selection.
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- (void)clearSelection;
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@end
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NS_ASSUME_NONNULL_END
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