116 lines
3.9 KiB
Swift
116 lines
3.9 KiB
Swift
import Foundation
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import PDFKit
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import UIKit
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import React
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@objc(SecurePdfViewerComponentView)
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@objcMembers
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public class SecurePdfViewerComponentView: UIView, UIGestureRecognizerDelegate {
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let attemptStore = PasswordAttemptStore()
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let pdfView = SecurePDFView()
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var pdfDocument: PDFDocument?
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var linkDelegate: PDFViewLinkDelegate?
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var normalizedSource: String = ""
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var pageIndicator: PageIndicatorView?
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var lastLayoutWidth: CGFloat = 0
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var thumbnailLayoutMode: ThumbnailLayoutMode!
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var customThumbnailView: CustomThumbnailView!
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var thumbnailLeadingConstraint: NSLayoutConstraint!
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var thumbnailWidthConstraint: NSLayoutConstraint!
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var thumbnailHeightConstraint: NSLayoutConstraint?
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var thumbnailTopConstraint: NSLayoutConstraint!
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var thumbnailBottomConstraint: NSLayoutConstraint!
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var pdfViewLeadingConstraint: NSLayoutConstraint!
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var pageIndicatorLeadingConstraint: NSLayoutConstraint!
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// Enum for thumbnail display mode
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enum ThumbnailLayoutMode {
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case panel // Side by side with PDF (iPad/wide screens)
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case drawer // Slides over the PDF (iPhone/narrow screens)
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}
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// UI interaction properties
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var contentOffsetObservation: NSKeyValueObservation?
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var singleTapRecognizer: UITapGestureRecognizer!
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var doubleTapRecognizer: UITapGestureRecognizer!
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var hideTimer: Timer?
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@objc public var source: NSString = "" {
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didSet {
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let rawPath = source as String
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if rawPath.hasPrefix("file://"), let url = URL(string: rawPath), url.isFileURL {
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normalizedSource = url.path
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} else {
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normalizedSource = rawPath
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}
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) {
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self.loadPDF()
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}
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}
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}
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@objc public var password: NSString? {
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didSet {
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if !normalizedSource.isEmpty && password != nil {
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attemptUnlockIfNeeded()
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}
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}
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}
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@objc public var allowLinks: Bool = true
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// Use closures instead of RCTDirectEventBlock to be architecture-agnostic
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// Old architecture (Paper) will set these via RCTDirectEventBlock in the manager
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// New architecture (Fabric) will set these directly from the C++ wrapper
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@objc public var onLinkPressed: (([String: Any]) -> Void)?
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@objc public var onLinkPressedDisabled: (([String: Any]) -> Void)?
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@objc public var onLoad: (([String: Any]) -> Void)?
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@objc public var onPasswordRequired: (([String: Any]) -> Void)?
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@objc public var onPasswordFailed: (([String: Any]) -> Void)?
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@objc public var onPasswordFailureLimitReached: (([String: Any]) -> Void)?
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@objc public var onLoadError: (([String: Any]) -> Void)?
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@objc public var onTap: (([String: Any]) -> Void)?
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@objc public override init(frame: CGRect) {
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super.init(frame: frame)
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setupPDFView()
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}
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@objc public required init?(coder: NSCoder) {
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super.init(coder: coder)
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setupPDFView()
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}
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deinit {
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// Clean up observers and timers to prevent crashes
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contentOffsetObservation?.invalidate()
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hideTimer?.invalidate()
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NotificationCenter.default.removeObserver(self)
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}
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public override func layoutSubviews() {
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super.layoutSubviews()
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// Check if we need to change layout mode when the view resizes
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layoutThumbnailsBasedOnWidth()
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}
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}
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class PDFViewLinkDelegate: NSObject, PDFViewDelegate {
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weak var owner: SecurePdfViewerComponentView?
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init(owner: SecurePdfViewerComponentView?) {
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self.owner = owner
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}
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@objc func pdfViewWillClick(onLink sender: PDFView, with url: URL) {
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guard let owner = owner else { return }
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if owner.allowLinks {
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owner.onLinkPressed?(["url": url.absoluteString])
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} else {
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owner.onLinkPressedDisabled?([:])
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}
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}
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}
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