App/Sources/InAppBrowser.swift

 1import SafariServices
 2import SwiftUI
 3import UIKit
 4
 5/// Opens web links in Safari's in-app browser over the current screen, so people stay in the app.
 6/// Other schemes (mailto:, settings) go to the system as usual.
 7@MainActor
 8enum InAppBrowser {
 9    static let action = OpenURLAction { url in
10        guard url.scheme == "https" || url.scheme == "http", let top = topViewController() else { return .systemAction }
11        let safari = SFSafariViewController(url: url)
12        safari.dismissButtonStyle = .done
13        top.present(safari, animated: true)
14        return .handled
15    }
16
17    private static func topViewController() -> UIViewController? {
18        let scene = UIApplication.shared.connectedScenes.compactMap { $0 as? UIWindowScene }.first { $0.activationState == .foregroundActive }
19        var top = scene?.keyWindow?.rootViewController
20        while let presented = top?.presentedViewController { top = presented }
21        return top
22    }
23}