Open certain links in Safari from WKWebView - swiftui

Question

I have another questions with WKWebView.
The following View is called with an request parameter which defines the complete url:
struct TrainerTab: UIViewRepresentable {
let request: String
private let hostingUrl: String = "https://page.tld"
func makeUIView(context: Context) -> WKWebView {
return WKWebView()
}
func updateUIView(_ uiView: WKWebView, context: Context) {
let url = "\(hostingUrl)/\(request)"
uiView.load(URLRequest(url: URL(string: url)!))
}
}
The HTML-Files from the page.tld have some href-Links.
I would like to open them in Safari. I read, that I have to implement the delegate method that gets called when the user taps a link.
But how can I do this?

Answer 1

You can use a Coordinator in your UIViewRepresentatable to act as a navigation delegate for the WKWebView:
struct TrainerTab: UIViewRepresentable {
let request: String
private let hostingUrl: String = "https://page.tld"
func makeCoordinator() -> Coordinator {
Coordinator()
}
func makeUIView(context: Context) -> WKWebView {
return WKWebView()
}
func updateUIView(_ uiView: WKWebView, context: Context) {
uiView.navigationDelegate = context.coordinator
let url = "\(hostingUrl)/\(request)"
uiView.load(URLRequest(url: URL(string: url)!))
}
class Coordinator : NSObject, WKNavigationDelegate {
func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: #escaping (WKNavigationActionPolicy) -> Void) {
guard let url = navigationAction.request.url else {
decisionHandler(.allow)
}
//make some conditions based on the URL here
if myCondition {
decisionHandler(.cancel)
UIApplication.shared.open(url)
} else {
decisionHandler(.allow)
}
}
}
}