Merge pull request #7 from trustly/set_returned_from_app

Changelog.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## [4.0.1] - 2023-11-28
+- Add setReturnedFromApp() method to TrustlyWKWebView. Can be called when Merchant-App is opened by urlscheme for a better user experience. This is an optional feature that is not yet rolled out in all Trustly products.
+
 ## [4.0.0] - 2023-03-21
 
 ### Removed

Sources/TrustlyIosSdk/TrustlyWKWebView.swift

@@ -87,6 +87,23 @@ public class TrustlyWKWebView: UIView, WKNavigationDelegate, WKUIDelegate, Trust
 
         addSubview(webView)
     }
+
+    static let IS_RETURN_FROM_APP = "isReturnFromApp"
+
+    // Only supported from v4.0.1 and up
+    public func setReturnedFromApp() {
+        if let checkoutUrl = webView?.url?.absoluteString {
+
+            // Append a random number to the hash param to ensure we skip page reloads
+            let randomString = String(Int.random(in: 0..<Int.max))
+            let separator = checkoutUrl.contains("#") ? "&" : "#"
+            let checkoutUrlWithHash = "\(checkoutUrl)\(separator)\(TrustlyWKWebView.IS_RETURN_FROM_APP)=\(randomString)"
+
+            if let url = URL(string: checkoutUrlWithHash) {
+                webView?.load(URLRequest(url: url))
+            }
+        }
+    }
 
     public required init?(coder aDecoder: NSCoder) {
         fatalError("init(coder:) has not been implemented")