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#if os(macOS)import Foundationimport WebKit // MARK: - Navigation helper (revived from the old credits scraper) @MainActorfinal class NavigationDelegate: NSObject, WKNavigationDelegate {    private let completion: (Result<Void, Error>) -> Void    private var hasCompleted: Bool = false    private var timeoutTask: Task<Void, Never>?    private var postCommitTask: Task<Void, Never>?    static var associationKey: UInt8 = 0    nonisolated static let postCommitSuccessDelay: TimeInterval = 0.75     init(completion: @escaping (Result<Void, Error>) -> Void) {        self.completion = completion    }     func armTimeout(seconds: TimeInterval) {        self.timeoutTask?.cancel()        self.timeoutTask = Task { @MainActor [weak self] in            guard let self else { return }            let nanoseconds = UInt64(max(seconds, 0) * 1_000_000_000)            try? await Task.sleep(nanoseconds: nanoseconds)            self.completeOnce(.failure(URLError(.timedOut)))        }    }     func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {        self.completeOnce(.success(()))    }     func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {        guard !self.hasCompleted else { return }        self.postCommitTask?.cancel()        self.postCommitTask = Task { @MainActor [weak self] in            guard let self else { return }            let nanoseconds = UInt64(Self.postCommitSuccessDelay * 1_000_000_000)            try? await Task.sleep(nanoseconds: nanoseconds)            self.completeOnce(.success(()))        }    }     func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {        if Self.shouldIgnoreNavigationError(error) { return }        self.completeOnce(.failure(error))    }     func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {        if Self.shouldIgnoreNavigationError(error) { return }        self.completeOnce(.failure(error))    }     nonisolated static func shouldIgnoreNavigationError(_ error: Error) -> Bool {        let nsError = error as NSError        if nsError.domain == NSURLErrorDomain, nsError.code == NSURLErrorCancelled {            return true        }         if nsError.domain == "WebKitErrorDomain", nsError.code == 102 {            return true        }         return false    }     private func completeOnce(_ result: Result<Void, Error>) {        guard !self.hasCompleted else { return }        self.hasCompleted = true        self.timeoutTask?.cancel()        self.timeoutTask = nil        self.postCommitTask?.cancel()        self.postCommitTask = nil        self.completion(result)    }} extension WKWebView {    var codexNavigationDelegate: NavigationDelegate? {        get {            objc_getAssociatedObject(self, &NavigationDelegate.associationKey) as? NavigationDelegate        }        set {            objc_setAssociatedObject(                self,                &NavigationDelegate.associationKey,                newValue,                .OBJC_ASSOCIATION_RETAIN_NONATOMIC)        }    }} #endif