WKWebView의 Delegate

WKWebView는 WKNavigationDelegate와 WKUIDelegate 두가지의 Delegate를 가지고 있습니다.

WKnavigationDelegate - 페이지의 start, loadding, finish, error의 이벤트를 캐치할 수 있으며 웹페이지의 전반적인 상황을 확인할 수 있음

WKUIDelegate - Javascript 이벤트를 캐치하여 동작합니다.

//WKUIDelegate

    /*
     *  Javasccript window open event
     */
    func webView(_ webView: WKWebView, createWebViewWith configuration: WKWebViewConfiguration, for navigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView? {
 
        if navigationAction.targetFrame == nil, let url = navigationAction.request.url {
            if url.description.lowercased().range(of: "http://") != nil || url.description.lowercased().range(of: "https://") != nil || url.description.lowercased().range(of: "mailto:") != nil {
                UIApplication.shared.openURL(url)
            }
        }
        return nil
    }
 
    @available(iOS 10.0, *)
    func webView(_ webView: WKWebView, shouldPreviewElement elementInfo: WKPreviewElementInfo) -> Bool {
        return false
    }
 
    func webViewDidClose(_ webView: WKWebView) {    
 
    }
 
    func webView(_ webView: WKWebView, commitPreviewingViewController previewingViewController: UIViewController) {
 
    }
 
    /*
     *  Javascript Alert Event
     */
    func webView(_ webView: WKWebView, runJavaScriptAlertPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping () -> Void) {
        let alertController = UIAlertController(title: message, message: nil, preferredStyle: UIAlertControllerStyle.alert);
        alertController.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.cancel) {
            _ in completionHandler()}
 
        )
        let rootViewController: UIViewController = (UIApplication.shared.windows.last?.rootViewController)!
        rootViewController.present(alertController, animated: true, completion: nil)
    }
 
    /*
     *  Javascript Comfirm Event
     */
    func webView(_ webView: WKWebView, runJavaScriptConfirmPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping (Bool) -> Void) {
        let alertController = UIAlertController(title: message, message: nil, preferredStyle: UIAlertControllerStyle.alert);
        alertController.addAction(UIAlertAction(title: "Cancel", style: UIAlertActionStyle.cancel) {
            _ in completionHandler(false)}
 
        )
        alertController.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.default) {
            _ in completionHandler(true)}
 
        )
 
        let rootViewController: UIViewController = (UIApplication.shared.windows.last?.rootViewController)!
        rootViewController.present(alertController, animated: true, completion: nil)
    }
 
    func webView(_ webView: WKWebView, runJavaScriptTextInputPanelWithPrompt prompt: String, defaultText: String?, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping (String?) -> Void) {
 
    }

// WKNavigationDelegate

// 페이지 로딩 시
    func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {
        loadingBar.stopAnimating()
    }
    
    /*
     * 페이지 로딩완료 Event
     */
    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        loadingBar.stopAnimating()
        myTimer.invalidate()
        btnRefresh.setImage(image0, for: UIControlState())
 
        /* 최근 세션시간 저장 */
        let delegate = UIApplication.shared.delegate as? AppDelegate
        delegate?.sessionRefreshDate = Date()
        
        currentURL = (webView.url!.absoluteString)
        
        print("Webview did finish load");
        
    }
    
    func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
        loadingBar.startAnimating()
    }
    func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
        loadingBar.stopAnimating()
    }
 
    /*
     *   쿠키 셋팅을 통한 Session 유지
     */
    func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse, decisionHandler: @escaping (WKNavigationResponsePolicy) -> Void) {
        if let urlResponse = navigationResponse.response as? HTTPURLResponse,
            let url = urlResponse.url,
            let allHeaderFields = urlResponse.allHeaderFields as? [String : String] {
            let cookies = HTTPCookie.cookies(withResponseHeaderFields: allHeaderFields, for: url)
            HTTPCookieStorage.shared.setCookies(cookies , for: urlResponse.url!, mainDocumentURL: nil)
            decisionHandler(.allow)
        }
    }
 
    /*
     * 페이지 로딩 시 Link Event
     */
    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
        let curUrl = navigationAction.request.url!.absoluteString
        
        HTTPCookieStorage.shared.cookieAcceptPolicy = HTTPCookie.AcceptPolicy.always
        
        if ((curUrl.range(of: "phobos.apple.com") != nil) || (curUrl.range(of: "itunes.apple.com") != nil)){
            goOtherView(navigationAction.request)
            decisionHandler(.cancel)
            return
        }else if((curUrl.hasPrefix("http")) || (curUrl.hasPrefix("https")) || (curUrl.hasPrefix("about")) || (curUrl.hasPrefix("file"))){
           
        }else{
            let strUrl2:String = "http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=369125087&;mt=8"
            if let strUrl1:URL = URL(string:strUrl2) {
                if #available(iOS 10.0, *) {
                    UIApplication.shared.open(strUrl1, options: [:], completionHandler: {
                        (success) in
                        //print("Open \(scheme): \(success)")
                    })
                } else {
                    // Fallback on earlier versions
                    UIApplication.shared.openURL(strUrl1)
                }
                decisionHandler(.cancel)
                return
            }
 
        }
      
        decisionHandler(.allow)
        
    }
    func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!) {
        loadingBar.stopAnimating()
    }
    func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {
        loadingBar.stopAnimating()
    }