// // InAppWebView.swift // flutter_inappbrowser // // Created by Lorenzo on 21/10/18. // import Flutter import Foundation import WebKit func currentTimeInMilliSeconds() -> Int64 { let currentDate = Date() let since1970 = currentDate.timeIntervalSince1970 return Int64(since1970 * 1000) } func convertToDictionary(text: String) -> [String: Any]? { if let data = text.data(using: .utf8) { do { return try JSONSerialization.jsonObject(with: data, options: []) as? [String: Any] } catch { print(error.localizedDescription) } } return nil } // the message needs to be concatenated with '' in order to have the same behavior like on Android let consoleLogJS = """ (function() { var oldLogs = { 'consoleLog': console.log, 'consoleDebug': console.debug, 'consoleError': console.error, 'consoleInfo': console.info, 'consoleWarn': console.warn }; for (var k in oldLogs) { (function(oldLog) { console[oldLog.replace('console', '').toLowerCase()] = function() { var message = ''; for (var i in arguments) { if (message == '') { message += arguments[i]; } else { message += ' ' + arguments[i]; } } window.webkit.messageHandlers[oldLog].postMessage(message); } })(k); } })(); """ let resourceObserverJS = """ (function() { var observer = new PerformanceObserver(function(list) { list.getEntries().forEach(function(entry) { window.webkit.messageHandlers['resourceLoaded'].postMessage(JSON.stringify(entry)); }); }); observer.observe({entryTypes: ['resource']}); })(); """ let JAVASCRIPT_BRIDGE_NAME = "flutter_inappbrowser" let javaScriptBridgeJS = """ window.\(JAVASCRIPT_BRIDGE_NAME) = {}; window.\(JAVASCRIPT_BRIDGE_NAME).callHandler = function() { var _callHandlerID = setTimeout(function(){}); window.webkit.messageHandlers['callHandler'].postMessage( {'handlerName': arguments[0], '_callHandlerID': _callHandlerID, 'args': JSON.stringify(Array.prototype.slice.call(arguments, 1))} ); return new Promise(function(resolve, reject) { window.\(JAVASCRIPT_BRIDGE_NAME)[_callHandlerID] = resolve; }); } """ let platformReadyJS = "window.dispatchEvent(new Event('flutterInAppBrowserPlatformReady'));"; let searchJavascript = """ var uiWebview_SearchResultCount = 0; /*! @method uiWebview_HighlightAllOccurencesOfStringForElement @abstract // helper function, recursively searches in elements and their child nodes @discussion // helper function, recursively searches in elements and their child nodes element - HTML elements keyword - string to search */ function uiWebview_HighlightAllOccurencesOfStringForElement(element,keyword) { if (element) { if (element.nodeType == 3) { // Text node var count = 0; var elementTmp = element; while (true) { var value = elementTmp.nodeValue; // Search for keyword in text node var idx = value.toLowerCase().indexOf(keyword); if (idx < 0) break; count++; elementTmp = document.createTextNode(value.substr(idx+keyword.length)); } uiWebview_SearchResultCount += count; var index = uiWebview_SearchResultCount; while (true) { var value = element.nodeValue; // Search for keyword in text node var idx = value.toLowerCase().indexOf(keyword); if (idx < 0) break; // not found, abort //we create a SPAN element for every parts of matched keywords var span = document.createElement("span"); var text = document.createTextNode(value.substr(idx,keyword.length)); span.appendChild(text); span.setAttribute("class","uiWebviewHighlight"); span.style.backgroundColor="yellow"; span.style.color="black"; index--; span.setAttribute("id", "SEARCH_WORD"+(index)); //span.setAttribute("id", "SEARCH_WORD"+uiWebview_SearchResultCount); //element.parentNode.setAttribute("id", "SEARCH_WORD"+uiWebview_SearchResultCount); //uiWebview_SearchResultCount++; // update the counter text = document.createTextNode(value.substr(idx+keyword.length)); element.deleteData(idx, value.length - idx); var next = element.nextSibling; //alert(element.parentNode); element.parentNode.insertBefore(span, next); element.parentNode.insertBefore(text, next); element = text; } } else if (element.nodeType == 1) { // Element node if (element.style.display != "none" && element.nodeName.toLowerCase() != 'select') { for (var i=element.childNodes.length-1; i>=0; i--) { uiWebview_HighlightAllOccurencesOfStringForElement(element.childNodes[i],keyword); } } } } } // the main entry point to start the search function uiWebview_HighlightAllOccurencesOfString(keyword) { uiWebview_RemoveAllHighlights(); uiWebview_HighlightAllOccurencesOfStringForElement(document.body, keyword.toLowerCase()); } // helper function, recursively removes the highlights in elements and their childs function uiWebview_RemoveAllHighlightsForElement(element) { if (element) { if (element.nodeType == 1) { if (element.getAttribute("class") == "uiWebviewHighlight") { var text = element.removeChild(element.firstChild); element.parentNode.insertBefore(text,element); element.parentNode.removeChild(element); return true; } else { var normalize = false; for (var i=element.childNodes.length-1; i>=0; i--) { if (uiWebview_RemoveAllHighlightsForElement(element.childNodes[i])) { normalize = true; } } if (normalize) { element.normalize(); } } } } return false; } // the main entry point to remove the highlights function uiWebview_RemoveAllHighlights() { uiWebview_SearchResultCount = 0; uiWebview_RemoveAllHighlightsForElement(document.body); } function uiWebview_ScrollTo(idx) { var scrollTo = document.getElementById("SEARCH_WORD" + idx); if (scrollTo) scrollTo.scrollIntoView(); } """ public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate, WKNavigationDelegate, WKScriptMessageHandler { var IABController: InAppBrowserWebViewController? var IAWController: FlutterWebViewController? var options: InAppWebViewOptions? var currentURL: URL? var WKNavigationMap: [String: [String: Any]] = [:] var startPageTime: Int64 = 0 static var credentialsProposed: [URLCredential] = [] init(frame: CGRect, configuration: WKWebViewConfiguration, IABController: InAppBrowserWebViewController?, IAWController: FlutterWebViewController?) { super.init(frame: frame, configuration: configuration) self.IABController = IABController self.IAWController = IAWController uiDelegate = self navigationDelegate = self scrollView.delegate = self } required public init(coder aDecoder: NSCoder) { super.init(coder: aDecoder)! } public func prepare() { addObserver(self, forKeyPath: #keyPath(WKWebView.estimatedProgress), options: .new, context: nil) configuration.userContentController = WKUserContentController() configuration.preferences = WKPreferences() if (options?.transparentBackground)! { isOpaque = false backgroundColor = UIColor.clear scrollView.backgroundColor = UIColor.clear } // prevent webView from bouncing if (options?.disallowOverScroll)! { if responds(to: #selector(getter: scrollView)) { scrollView.bounces = false } else { for subview: UIView in subviews { if subview is UIScrollView { (subview as! UIScrollView).bounces = false } } } } if (options?.enableViewportScale)! { let jscript = "var meta = document.createElement('meta'); meta.setAttribute('name', 'viewport'); meta.setAttribute('content', 'width=device-width'); document.getElementsByTagName('head')[0].appendChild(meta);" let userScript = WKUserScript(source: jscript, injectionTime: .atDocumentEnd, forMainFrameOnly: true) configuration.userContentController.addUserScript(userScript) } // Prevents long press on links that cause WKWebView exit let jscriptWebkitTouchCallout = WKUserScript(source: "document.body.style.webkitTouchCallout='none';", injectionTime: .atDocumentEnd, forMainFrameOnly: true) configuration.userContentController.addUserScript(jscriptWebkitTouchCallout) let consoleLogJSScript = WKUserScript(source: consoleLogJS, injectionTime: .atDocumentStart, forMainFrameOnly: false) configuration.userContentController.addUserScript(consoleLogJSScript) configuration.userContentController.add(self, name: "consoleLog") configuration.userContentController.add(self, name: "consoleDebug") configuration.userContentController.add(self, name: "consoleError") configuration.userContentController.add(self, name: "consoleInfo") configuration.userContentController.add(self, name: "consoleWarn") let javaScriptBridgeJSScript = WKUserScript(source: javaScriptBridgeJS, injectionTime: .atDocumentStart, forMainFrameOnly: false) configuration.userContentController.addUserScript(javaScriptBridgeJSScript) configuration.userContentController.add(self, name: "callHandler") let resourceObserverJSScript = WKUserScript(source: resourceObserverJS, injectionTime: .atDocumentStart, forMainFrameOnly: false) configuration.userContentController.addUserScript(resourceObserverJSScript) configuration.userContentController.add(self, name: "resourceLoaded") //keyboardDisplayRequiresUserAction = browserOptions?.keyboardDisplayRequiresUserAction configuration.suppressesIncrementalRendering = (options?.suppressesIncrementalRendering)! allowsBackForwardNavigationGestures = (options?.allowsBackForwardNavigationGestures)! if #available(iOS 9.0, *) { allowsLinkPreview = (options?.allowsLinkPreview)! configuration.allowsPictureInPictureMediaPlayback = (options?.allowsPictureInPictureMediaPlayback)! if ((options?.applicationNameForUserAgent)! != "") { configuration.applicationNameForUserAgent = (options?.applicationNameForUserAgent)! } if ((options?.userAgent)! != "") { customUserAgent = (options?.userAgent)! } } configuration.preferences.javaScriptCanOpenWindowsAutomatically = (options?.javaScriptCanOpenWindowsAutomatically)! configuration.preferences.javaScriptEnabled = (options?.javaScriptEnabled)! configuration.preferences.minimumFontSize = CGFloat((options?.minimumFontSize)!) configuration.selectionGranularity = WKSelectionGranularity.init(rawValue: (options?.selectionGranularity)!)! if #available(iOS 10.0, *) { configuration.ignoresViewportScaleLimits = (options?.ignoresViewportScaleLimits)! var dataDetectorTypes = WKDataDetectorTypes.init(rawValue: 0) for type in options?.dataDetectorTypes ?? [] { let dataDetectorType = getDataDetectorType(type: type) dataDetectorTypes = WKDataDetectorTypes(rawValue: dataDetectorTypes.rawValue | dataDetectorType.rawValue) } configuration.dataDetectorTypes = dataDetectorTypes } else { // Fallback on earlier versions } if #available(iOS 13.0, *) { configuration.preferences.isFraudulentWebsiteWarningEnabled = (options?.isFraudulentWebsiteWarningEnabled)! if options?.preferredContentMode != nil { configuration.defaultWebpagePreferences.preferredContentMode = WKWebpagePreferences.ContentMode(rawValue: (options?.preferredContentMode)!)! } } else { // Fallback on earlier versions } scrollView.showsVerticalScrollIndicator = (options?.verticalScrollBarEnabled)! scrollView.showsHorizontalScrollIndicator = (options?.horizontalScrollBarEnabled)! // options.debuggingEnabled is always enabled for iOS. if (options?.clearCache)! { clearCache() } evaluateJavaScript(searchJavascript, completionHandler: nil) } @available(iOS 10.0, *) public func getDataDetectorType(type: String) -> WKDataDetectorTypes { switch type { case "NONE": return WKDataDetectorTypes.init(rawValue: 0) case "PHONE_NUMBER": return .phoneNumber case "LINK": return .link case "ADDRESS": return .address case "CALENDAR_EVENT": return .calendarEvent case "TRACKING_NUMBER": return .trackingNumber case "FLIGHT_NUMBER": return .flightNumber case "LOOKUP_SUGGESTION": return .lookupSuggestion case "SPOTLIGHT_SUGGESTION": return .spotlightSuggestion case "ALL": return .all default: return WKDataDetectorTypes.init(rawValue: 0) } } public static func preWKWebViewConfiguration(options: InAppWebViewOptions?) -> WKWebViewConfiguration { let configuration = WKWebViewConfiguration() if #available(iOS 10.0, *) { configuration.mediaTypesRequiringUserActionForPlayback = ((options?.mediaPlaybackRequiresUserGesture)!) ? .all : [] } else { // Fallback on earlier versions configuration.mediaPlaybackRequiresUserAction = (options?.mediaPlaybackRequiresUserGesture)! } configuration.allowsInlineMediaPlayback = (options?.allowsInlineMediaPlayback)! if #available(iOS 11.0, *) { if let schemes = options?.resourceCustomSchemes { for scheme in schemes { configuration.setURLSchemeHandler(CustomeSchemeHandler(), forURLScheme: scheme) } } } else { // Fallback on earlier versions } return configuration } override public func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) { if keyPath == "estimatedProgress" { let progress = Int(estimatedProgress * 100) onProgressChanged(progress: progress) } } public func goBackOrForward(steps: Int) { if canGoBackOrForward(steps: steps) { if (steps > 0) { let index = steps - 1 go(to: self.backForwardList.forwardList[index]) } else if (steps < 0){ let backListLength = self.backForwardList.backList.count let index = backListLength + steps go(to: self.backForwardList.backList[index]) } } } public func canGoBackOrForward(steps: Int) -> Bool { let currentIndex = self.backForwardList.backList.count return (steps >= 0) ? steps <= self.backForwardList.forwardList.count : currentIndex + steps >= 0 } public func takeScreenshot (completionHandler: @escaping (_ screenshot: Data?) -> Void) { if #available(iOS 11.0, *) { takeSnapshot(with: nil, completionHandler: {(image, error) -> Void in var imageData: Data? = nil if let screenshot = image { imageData = screenshot.pngData()! } completionHandler(imageData) }) } else { completionHandler(nil) } } public func loadUrl(url: URL, headers: [String: String]?) { var request = URLRequest(url: url) currentURL = url if headers != nil { if let mutableRequest = (request as NSURLRequest).mutableCopy() as? NSMutableURLRequest { for (key, value) in headers! { mutableRequest.setValue(value, forHTTPHeaderField: key) } request = mutableRequest as URLRequest } } load(request) } public func postUrl(url: URL, postData: Data, completionHandler: @escaping () -> Void) { var request = URLRequest(url: url) currentURL = url request.httpMethod = "POST" request.httpBody = postData let task = URLSession.shared.dataTask(with: request) { (data : Data?, response : URLResponse?, error : Error?) in var returnString = "" if data != nil { returnString = String(data: data!, encoding: .utf8) ?? "" } DispatchQueue.main.async(execute: {() -> Void in self.loadHTMLString(returnString, baseURL: url) completionHandler() }) } task.resume() } public func loadData(data: String, mimeType: String, encoding: String, baseUrl: String) { let url = URL(string: baseUrl)! currentURL = url if #available(iOS 9.0, *) { load(data.data(using: .utf8)!, mimeType: mimeType, characterEncodingName: encoding, baseURL: url) } else { loadHTMLString(data, baseURL: url) } } public func loadFile(url: String, headers: [String: String]?) throws { let key = SwiftFlutterPlugin.instance!.registrar!.lookupKey(forAsset: url) let assetURL = Bundle.main.url(forResource: key, withExtension: nil) if assetURL == nil { throw NSError(domain: url + " asset file cannot be found!", code: 0) } loadUrl(url: assetURL!, headers: headers) } func setOptions(newOptions: InAppWebViewOptions, newOptionsMap: [String: Any]) { if newOptionsMap["transparentBackground"] != nil && options?.transparentBackground != newOptions.transparentBackground { if newOptions.transparentBackground { isOpaque = false backgroundColor = UIColor.clear scrollView.backgroundColor = UIColor.clear } else { isOpaque = true backgroundColor = nil scrollView.backgroundColor = UIColor(red: 1, green: 1, blue: 1, alpha: 1) } } if newOptionsMap["disallowOverScroll"] != nil && options?.disallowOverScroll != newOptions.disallowOverScroll { if responds(to: #selector(getter: scrollView)) { scrollView.bounces = !newOptions.disallowOverScroll } else { for subview: UIView in subviews { if subview is UIScrollView { (subview as! UIScrollView).bounces = !newOptions.disallowOverScroll } } } } if newOptionsMap["enableViewportScale"] != nil && options?.enableViewportScale != newOptions.enableViewportScale && newOptions.enableViewportScale { let jscript = "var meta = document.createElement('meta'); meta.setAttribute('name', 'viewport'); meta.setAttribute('content', 'width=device-width'); document.getElementsByTagName('head')[0].appendChild(meta);" evaluateJavaScript(jscript, completionHandler: nil) } if newOptionsMap["mediaPlaybackRequiresUserGesture"] != nil && options?.mediaPlaybackRequiresUserGesture != newOptions.mediaPlaybackRequiresUserGesture { if #available(iOS 10.0, *) { configuration.mediaTypesRequiringUserActionForPlayback = (newOptions.mediaPlaybackRequiresUserGesture) ? .all : [] } else { // Fallback on earlier versions configuration.mediaPlaybackRequiresUserAction = newOptions.mediaPlaybackRequiresUserGesture } } if newOptionsMap["allowsInlineMediaPlayback"] != nil && options?.allowsInlineMediaPlayback != newOptions.allowsInlineMediaPlayback { configuration.allowsInlineMediaPlayback = newOptions.allowsInlineMediaPlayback } // if newOptionsMap["keyboardDisplayRequiresUserAction"] != nil && browserOptions?.keyboardDisplayRequiresUserAction != newOptions.keyboardDisplayRequiresUserAction { // self.webView.keyboardDisplayRequiresUserAction = newOptions.keyboardDisplayRequiresUserAction // } if newOptionsMap["suppressesIncrementalRendering"] != nil && options?.suppressesIncrementalRendering != newOptions.suppressesIncrementalRendering { configuration.suppressesIncrementalRendering = newOptions.suppressesIncrementalRendering } if newOptionsMap["allowsBackForwardNavigationGestures"] != nil && options?.allowsBackForwardNavigationGestures != newOptions.allowsBackForwardNavigationGestures { allowsBackForwardNavigationGestures = newOptions.allowsBackForwardNavigationGestures } if newOptionsMap["allowsInlineMediaPlayback"] != nil && options?.allowsInlineMediaPlayback != newOptions.allowsInlineMediaPlayback { configuration.allowsInlineMediaPlayback = newOptions.allowsInlineMediaPlayback } if newOptionsMap["javaScriptCanOpenWindowsAutomatically"] != nil && options?.javaScriptCanOpenWindowsAutomatically != newOptions.javaScriptCanOpenWindowsAutomatically { configuration.preferences.javaScriptCanOpenWindowsAutomatically = newOptions.javaScriptCanOpenWindowsAutomatically } if newOptionsMap["javaScriptEnabled"] != nil && options?.javaScriptEnabled != newOptions.javaScriptEnabled { configuration.preferences.javaScriptEnabled = newOptions.javaScriptEnabled } if newOptionsMap["minimumFontSize"] != nil && options?.minimumFontSize != newOptions.minimumFontSize { configuration.preferences.minimumFontSize = CGFloat(newOptions.minimumFontSize) } if newOptionsMap["selectionGranularity"] != nil && options?.selectionGranularity != newOptions.selectionGranularity { configuration.selectionGranularity = WKSelectionGranularity.init(rawValue: newOptions.selectionGranularity)! } if #available(iOS 10.0, *) { if newOptionsMap["ignoresViewportScaleLimits"] != nil && options?.ignoresViewportScaleLimits != newOptions.ignoresViewportScaleLimits { configuration.ignoresViewportScaleLimits = newOptions.ignoresViewportScaleLimits } if newOptionsMap["dataDetectorTypes"] != nil && options?.dataDetectorTypes != newOptions.dataDetectorTypes { var dataDetectorTypes = WKDataDetectorTypes.init(rawValue: 0) for type in newOptions.dataDetectorTypes { let dataDetectorType = getDataDetectorType(type: type) dataDetectorTypes = WKDataDetectorTypes(rawValue: dataDetectorTypes.rawValue | dataDetectorType.rawValue) } configuration.dataDetectorTypes = dataDetectorTypes } } else { // Fallback on earlier versions } if #available(iOS 13.0, *) { configuration.preferences.isFraudulentWebsiteWarningEnabled = (options?.isFraudulentWebsiteWarningEnabled)! configuration.defaultWebpagePreferences.preferredContentMode = WKWebpagePreferences.ContentMode(rawValue: (options?.preferredContentMode)!)! } else { // Fallback on earlier versions } if newOptionsMap["verticalScrollBarEnabled"] != nil && options?.verticalScrollBarEnabled != newOptions.verticalScrollBarEnabled { scrollView.showsVerticalScrollIndicator = newOptions.verticalScrollBarEnabled } if newOptionsMap["horizontalScrollBarEnabled"] != nil && options?.horizontalScrollBarEnabled != newOptions.horizontalScrollBarEnabled { scrollView.showsHorizontalScrollIndicator = newOptions.horizontalScrollBarEnabled } if #available(iOS 9.0, *) { if newOptionsMap["allowsLinkPreview"] != nil && options?.allowsLinkPreview != newOptions.allowsLinkPreview { allowsLinkPreview = newOptions.allowsLinkPreview } if newOptionsMap["allowsPictureInPictureMediaPlayback"] != nil && options?.allowsPictureInPictureMediaPlayback != newOptions.allowsPictureInPictureMediaPlayback { configuration.allowsPictureInPictureMediaPlayback = newOptions.allowsPictureInPictureMediaPlayback } if newOptionsMap["applicationNameForUserAgent"] != nil && options?.applicationNameForUserAgent != newOptions.applicationNameForUserAgent && newOptions.applicationNameForUserAgent != "" { configuration.applicationNameForUserAgent = newOptions.applicationNameForUserAgent } if newOptionsMap["userAgent"] != nil && options?.userAgent != newOptions.userAgent && newOptions.userAgent != "" { customUserAgent = newOptions.userAgent } } if newOptionsMap["clearCache"] != nil && newOptions.clearCache { clearCache() } if #available(iOS 11.0, *), newOptionsMap["contentBlockers"] != nil { configuration.userContentController.removeAllContentRuleLists() let contentBlockers = newOptions.contentBlockers if contentBlockers.count > 0 { do { let jsonData = try JSONSerialization.data(withJSONObject: contentBlockers, options: []) let blockRules = String(data: jsonData, encoding: String.Encoding.utf8) WKContentRuleListStore.default().compileContentRuleList( forIdentifier: "ContentBlockingRules", encodedContentRuleList: blockRules) { (contentRuleList, error) in if let error = error { print(error.localizedDescription) return } self.configuration.userContentController.add(contentRuleList!) } } catch { print(error.localizedDescription) } } } self.options = newOptions } func getOptions() -> [String: Any]? { if (self.options == nil) { return nil } return self.options!.getHashMap() } public func clearCache() { if #available(iOS 9.0, *) { //let websiteDataTypes = NSSet(array: [WKWebsiteDataTypeDiskCache, WKWebsiteDataTypeMemoryCache]) let date = NSDate(timeIntervalSince1970: 0) WKWebsiteDataStore.default().removeData(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes(), modifiedSince: date as Date, completionHandler:{ }) } else { var libraryPath = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.libraryDirectory, FileManager.SearchPathDomainMask.userDomainMask, false).first! libraryPath += "/Cookies" do { try FileManager.default.removeItem(atPath: libraryPath) } catch { print("can't clear cache") } URLCache.shared.removeAllCachedResponses() } } public func injectDeferredObject(source: String, withWrapper jsWrapper: String, result: FlutterResult?) { let jsonData: Data? = try? JSONSerialization.data(withJSONObject: [source], options: []) let sourceArrayString = String(data: jsonData!, encoding: String.Encoding.utf8) if sourceArrayString != nil { let sourceString: String? = (sourceArrayString! as NSString).substring(with: NSRange(location: 1, length: (sourceArrayString?.count ?? 0) - 2)) let jsToInject = String(format: jsWrapper, sourceString!) evaluateJavaScript(jsToInject, completionHandler: {(value, error) in if result == nil { return } if error != nil { let userInfo = (error! as NSError).userInfo self.onConsoleMessage(sourceURL: (userInfo["WKJavaScriptExceptionSourceURL"] as? URL)?.absoluteString ?? "", lineNumber: userInfo["WKJavaScriptExceptionLineNumber"] as! Int, message: userInfo["WKJavaScriptExceptionMessage"] as! String, messageLevel: 3) } if value == nil { result!("") return } do { let data: Data = ("[" + String(describing: value!) + "]").data(using: String.Encoding.utf8, allowLossyConversion: false)! let json: Array = try JSONSerialization.jsonObject(with: data, options: []) as! Array if json[0] is String { result!(json[0]) } else { result!(value) } } catch let error as NSError { result!(FlutterError(code: "InAppBrowserFlutterPlugin", message: "Failed to load: \(error.localizedDescription)", details: error)) } }) } } public func injectScriptCode(source: String, result: FlutterResult?) { let jsWrapper = "(function(){return JSON.stringify(eval(%@));})();" injectDeferredObject(source: source, withWrapper: jsWrapper, result: result) } public func injectScriptFile(urlFile: String) { let jsWrapper = "(function(d) { var c = d.createElement('script'); c.src = %@; d.body.appendChild(c); })(document);" injectDeferredObject(source: urlFile, withWrapper: jsWrapper, result: nil) } public func injectStyleCode(source: String) { let jsWrapper = "(function(d) { var c = d.createElement('style'); c.innerHTML = %@; d.body.appendChild(c); })(document);" injectDeferredObject(source: source, withWrapper: jsWrapper, result: nil) } public func injectStyleFile(urlFile: String) { let jsWrapper = "(function(d) { var c = d.createElement('link'); c.rel='stylesheet', c.type='text/css'; c.href = %@; d.body.appendChild(c); })(document);" injectDeferredObject(source: urlFile, withWrapper: jsWrapper, result: nil) } public func getCopyBackForwardList() -> [String: Any] { let currentList = backForwardList let currentIndex = currentList.backList.count var completeList = currentList.backList if currentList.currentItem != nil { completeList.append(currentList.currentItem!) } completeList.append(contentsOf: currentList.forwardList) var history: [[String: String]] = [] for historyItem in completeList { var historyItemMap: [String: String] = [:] historyItemMap["originalUrl"] = historyItem.initialURL.absoluteString historyItemMap["title"] = historyItem.title historyItemMap["url"] = historyItem.url.absoluteString history.append(historyItemMap) } var result: [String: Any] = [:] result["history"] = history result["currentIndex"] = currentIndex return result; } public func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) { let app = UIApplication.shared if let url = navigationAction.request.url { if url.absoluteString != url.absoluteString && (options?.useOnLoadResource)! { WKNavigationMap[url.absoluteString] = [ "startTime": currentTimeInMilliSeconds(), "request": navigationAction.request ] } // Handle target="_blank" if navigationAction.targetFrame == nil && (options?.useOnTargetBlank)! { onTargetBlank(url: url) decisionHandler(.cancel) return } if navigationAction.navigationType == .linkActivated && (options?.useShouldOverrideUrlLoading)! { shouldOverrideUrlLoading(url: url) decisionHandler(.cancel) return } // Handle phone and email links if url.scheme == "tel" || url.scheme == "mailto" { if app.canOpenURL(url) { if #available(iOS 10.0, *) { app.open(url) } else { app.openURL(url) } } decisionHandler(.cancel) return } if navigationAction.navigationType == .linkActivated || navigationAction.navigationType == .backForward { currentURL = url if IABController != nil { IABController!.updateUrlTextField(url: (currentURL?.absoluteString)!) } } } decisionHandler(.allow) } public func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse, decisionHandler: @escaping (WKNavigationResponsePolicy) -> Void) { // if (options?.useOnLoadResource)! { // if let url = navigationResponse.response.url { // if WKNavigationMap[url.absoluteString] != nil { // let startResourceTime: Int64 = (WKNavigationMap[url.absoluteString]!["startTime"] as! Int64) // let startTime: Int64 = startResourceTime - startPageTime; // let duration: Int64 = currentTimeInMilliSeconds() - startResourceTime; // onLoadResource(response: navigationResponse.response, fromRequest: WKNavigationMap[url.absoluteString]!["request"] as? URLRequest, withData: Data(), startTime: startTime, duration: duration) // } // } // } if (options?.useOnDownloadStart)! { let mimeType = navigationResponse.response.mimeType if let url = navigationResponse.response.url { if mimeType != nil && !mimeType!.starts(with: "text/") { onDownloadStart(url: url.absoluteString) decisionHandler(.cancel) return } } } decisionHandler(.allow) } public func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) { self.startPageTime = currentTimeInMilliSeconds() onLoadStart(url: (currentURL?.absoluteString)!) if IABController != nil { // loading url, start spinner, update back/forward IABController!.backButton.isEnabled = canGoBack IABController!.forwardButton.isEnabled = canGoForward if (IABController!.browserOptions?.spinner)! { IABController!.spinner.startAnimating() } } } public func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) { self.WKNavigationMap = [:] currentURL = url InAppWebView.credentialsProposed = [] onLoadStop(url: (currentURL?.absoluteString)!) evaluateJavaScript(platformReadyJS, completionHandler: nil) if IABController != nil { IABController!.updateUrlTextField(url: (currentURL?.absoluteString)!) IABController!.backButton.isEnabled = canGoBack IABController!.forwardButton.isEnabled = canGoForward IABController!.spinner.stopAnimating() } // findAllAsync("Flutter", completionHandler: {(value, error) in // if error != nil { // print(error) // } else if let foundOccurences: Int = value as! Int { // print(foundOccurences) // //self.findNext(to: foundOccurences - 4, completionHandler: nil) // } // }) } public func webView(_ view: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) { webView(view, didFail: navigation, withError: error) } public func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) { InAppWebView.credentialsProposed = [] onLoadError(url: (currentURL?.absoluteString)!, error: error) if IABController != nil { IABController!.backButton.isEnabled = canGoBack IABController!.forwardButton.isEnabled = canGoForward IABController!.spinner.stopAnimating() } } public func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) { if challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodHTTPBasic || challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodDefault || challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodHTTPDigest { let host = challenge.protectionSpace.host let prot = challenge.protectionSpace.protocol let realm = challenge.protectionSpace.realm let port = challenge.protectionSpace.port onReceivedHttpAuthRequest(challenge: challenge, result: {(result) -> Void in if result is FlutterError { print((result as! FlutterError).message) } else if (result as? NSObject) == FlutterMethodNotImplemented { completionHandler(.performDefaultHandling, nil) } else { var response: [String: Any] if let r = result { response = r as! [String: Any] var action = response["action"] as? Int action = action != nil ? action : 0; switch action { case 0: InAppWebView.credentialsProposed = [] completionHandler(.cancelAuthenticationChallenge, nil) break case 1: let username = response["username"] as! String let password = response["password"] as! String let permanentPersistence = response["permanentPersistence"] as? Bool ?? false let persistence = (permanentPersistence) ? URLCredential.Persistence.permanent : URLCredential.Persistence.forSession let credential = URLCredential(user: username, password: password, persistence: persistence) completionHandler(.useCredential, credential) break case 2: if InAppWebView.credentialsProposed.count == 0 { for (protectionSpace, credentials) in CredentialDatabase.credentialStore!.allCredentials { if protectionSpace.host == host && protectionSpace.realm == realm && protectionSpace.protocol == prot && protectionSpace.port == port { for credential in credentials { InAppWebView.credentialsProposed.append(credential.value) } break } } } if InAppWebView.credentialsProposed.count == 0, let credential = challenge.proposedCredential { InAppWebView.credentialsProposed.append(credential) } if let credential = InAppWebView.credentialsProposed.popLast() { completionHandler(.useCredential, credential) } else { completionHandler(.performDefaultHandling, nil) } break default: InAppWebView.credentialsProposed = [] completionHandler(.performDefaultHandling, nil) } return; } completionHandler(.performDefaultHandling, nil) } }) } else if challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodServerTrust { guard let serverTrust = challenge.protectionSpace.serverTrust else { completionHandler(.performDefaultHandling, nil) return } onReceivedServerTrustAuthRequest(challenge: challenge, result: {(result) -> Void in if result is FlutterError { print((result as! FlutterError).message) } else if (result as? NSObject) == FlutterMethodNotImplemented { completionHandler(.performDefaultHandling, nil) } else { var response: [String: Any] if let r = result { response = r as! [String: Any] var action = response["action"] as? Int action = action != nil ? action : 0; switch action { case 0: InAppWebView.credentialsProposed = [] completionHandler(.cancelAuthenticationChallenge, nil) break case 1: let exceptions = SecTrustCopyExceptions(serverTrust) SecTrustSetExceptions(serverTrust, exceptions) let credential = URLCredential(trust: serverTrust) completionHandler(.useCredential, credential) break default: InAppWebView.credentialsProposed = [] completionHandler(.performDefaultHandling, nil) } return; } completionHandler(.performDefaultHandling, nil) } }) } else if challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodClientCertificate { onReceivedClientCertRequest(challenge: challenge, result: {(result) -> Void in if result is FlutterError { print((result as! FlutterError).message) } else if (result as? NSObject) == FlutterMethodNotImplemented { completionHandler(.performDefaultHandling, nil) } else { var response: [String: Any] if let r = result { response = r as! [String: Any] var action = response["action"] as? Int action = action != nil ? action : 0; switch action { case 0: completionHandler(.cancelAuthenticationChallenge, nil) break case 1: let certificatePath = response["certificatePath"] as! String; let certificatePassword = response["certificatePassword"] as? String ?? ""; let key = SwiftFlutterPlugin.instance!.registrar!.lookupKey(forAsset: certificatePath) let path = Bundle.main.path(forResource: key, ofType: nil)! let PKCS12Data = NSData(contentsOfFile: path)! if let identityAndTrust: IdentityAndTrust = self.extractIdentity(PKCS12Data: PKCS12Data, password: certificatePassword) { let urlCredential: URLCredential = URLCredential( identity: identityAndTrust.identityRef, certificates: identityAndTrust.certArray as? [AnyObject], persistence: URLCredential.Persistence.forSession); completionHandler(.useCredential, urlCredential) } else { completionHandler(.performDefaultHandling, nil) } break case 2: completionHandler(.cancelAuthenticationChallenge, nil) break default: completionHandler(.performDefaultHandling, nil) } return; } completionHandler(.performDefaultHandling, nil) } }) } else { completionHandler(.performDefaultHandling, nil) } } struct IdentityAndTrust { var identityRef:SecIdentity var trust:SecTrust var certArray:AnyObject } func extractIdentity(PKCS12Data:NSData, password: String) -> IdentityAndTrust? { var identityAndTrust:IdentityAndTrust? var securityError:OSStatus = errSecSuccess var importResult: CFArray? = nil securityError = SecPKCS12Import( PKCS12Data as NSData, [kSecImportExportPassphrase as String: password] as NSDictionary, &importResult ) if securityError == errSecSuccess { let certItems:CFArray = importResult! as CFArray; let certItemsArray:Array = certItems as Array let dict:AnyObject? = certItemsArray.first; if let certEntry:Dictionary = dict as? Dictionary { // grab the identity let identityPointer:AnyObject? = certEntry["identity"]; let secIdentityRef:SecIdentity = (identityPointer as! SecIdentity?)!; // grab the trust let trustPointer:AnyObject? = certEntry["trust"]; let trustRef:SecTrust = trustPointer as! SecTrust; // grab the cert let chainPointer:AnyObject? = certEntry["chain"]; identityAndTrust = IdentityAndTrust(identityRef: secIdentityRef, trust: trustRef, certArray: chainPointer!); } } else { print("Security Error: " + securityError.description) if #available(iOS 11.3, *) { print(SecCopyErrorMessageString(securityError,nil)) } } return identityAndTrust; } func createAlertDialog(message: String?, responseMessage: String?, confirmButtonTitle: String?, completionHandler: @escaping () -> Void) { let title = responseMessage != nil && !responseMessage!.isEmpty ? responseMessage : message let okButton = confirmButtonTitle != nil && !confirmButtonTitle!.isEmpty ? confirmButtonTitle : NSLocalizedString("Ok", comment: "") let alertController = UIAlertController(title: title, message: nil, preferredStyle: UIAlertController.Style.alert); alertController.addAction(UIAlertAction(title: okButton, style: UIAlertAction.Style.default) { _ in completionHandler()} ); let presentingViewController = ((self.IABController != nil) ? self.IABController! : self.window!.rootViewController!) presentingViewController.present(alertController, animated: true, completion: {}) } public func webView(_ webView: WKWebView, runJavaScriptAlertPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping () -> Void) { onJsAlert(message: message, result: {(result) -> Void in if result is FlutterError { print((result as! FlutterError).message) } else if (result as? NSObject) == FlutterMethodNotImplemented { self.createAlertDialog(message: message, responseMessage: nil, confirmButtonTitle: nil, completionHandler: completionHandler) } else { let response: [String: Any] var responseMessage: String?; var confirmButtonTitle: String?; if let r = result { response = r as! [String: Any] responseMessage = response["message"] as? String confirmButtonTitle = response["confirmButtonTitle"] as? String let handledByClient = response["handledByClient"] as? Bool if handledByClient != nil, handledByClient! { var action = response["action"] as? Int action = action != nil ? action : 1; switch action { case 0: completionHandler() break default: completionHandler() } return; } } self.createAlertDialog(message: message, responseMessage: responseMessage, confirmButtonTitle: confirmButtonTitle, completionHandler: completionHandler) } }) } func createConfirmDialog(message: String?, responseMessage: String?, confirmButtonTitle: String?, cancelButtonTitle: String?, completionHandler: @escaping (Bool) -> Void) { let dialogMessage = responseMessage != nil && !responseMessage!.isEmpty ? responseMessage : message let okButton = confirmButtonTitle != nil && !confirmButtonTitle!.isEmpty ? confirmButtonTitle : NSLocalizedString("Ok", comment: "") let cancelButton = cancelButtonTitle != nil && !cancelButtonTitle!.isEmpty ? cancelButtonTitle : NSLocalizedString("Cancel", comment: "") let alertController = UIAlertController(title: nil, message: dialogMessage, preferredStyle: .alert) alertController.addAction(UIAlertAction(title: okButton, style: .default, handler: { (action) in completionHandler(true) })) alertController.addAction(UIAlertAction(title: cancelButton, style: .cancel, handler: { (action) in completionHandler(false) })) let presentingViewController = ((self.IABController != nil) ? self.IABController! : self.window!.rootViewController!) presentingViewController.present(alertController, animated: true, completion: nil) } public func webView(_ webView: WKWebView, runJavaScriptConfirmPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping (Bool) -> Void) { onJsConfirm(message: message, result: {(result) -> Void in if result is FlutterError { print((result as! FlutterError).message) } else if (result as? NSObject) == FlutterMethodNotImplemented { self.createConfirmDialog(message: message, responseMessage: nil, confirmButtonTitle: nil, cancelButtonTitle: nil, completionHandler: completionHandler) } else { let response: [String: Any] var responseMessage: String?; var confirmButtonTitle: String?; var cancelButtonTitle: String?; if let r = result { response = r as! [String: Any] responseMessage = response["message"] as? String confirmButtonTitle = response["confirmButtonTitle"] as? String cancelButtonTitle = response["cancelButtonTitle"] as? String let handledByClient = response["handledByClient"] as? Bool if handledByClient != nil, handledByClient! { var action = response["action"] as? Int action = action != nil ? action : 1; switch action { case 0: completionHandler(true) break case 1: completionHandler(false) break default: completionHandler(false) } return; } } self.createConfirmDialog(message: message, responseMessage: responseMessage, confirmButtonTitle: confirmButtonTitle, cancelButtonTitle: cancelButtonTitle, completionHandler: completionHandler) } }) } func createPromptDialog(message: String, defaultValue: String?, responseMessage: String?, confirmButtonTitle: String?, cancelButtonTitle: String?, value: String?, completionHandler: @escaping (String?) -> Void) { let dialogMessage = responseMessage != nil && !responseMessage!.isEmpty ? responseMessage : message let okButton = confirmButtonTitle != nil && !confirmButtonTitle!.isEmpty ? confirmButtonTitle : NSLocalizedString("Ok", comment: "") let cancelButton = cancelButtonTitle != nil && !cancelButtonTitle!.isEmpty ? cancelButtonTitle : NSLocalizedString("Cancel", comment: "") let alertController = UIAlertController(title: nil, message: dialogMessage, preferredStyle: .alert) alertController.addTextField { (textField) in textField.text = defaultValue } alertController.addAction(UIAlertAction(title: okButton, style: .default, handler: { (action) in if let v = value { completionHandler(v) } else if let text = alertController.textFields?.first?.text { completionHandler(text) } else { completionHandler("") } })) alertController.addAction(UIAlertAction(title: cancelButton, style: .cancel, handler: { (action) in completionHandler(nil) })) let presentingViewController = ((self.IABController != nil) ? self.IABController! : self.window!.rootViewController!) presentingViewController.present(alertController, animated: true, completion: nil) } public func webView(_ webView: WKWebView, runJavaScriptTextInputPanelWithPrompt message: String, defaultText defaultValue: String?, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping (String?) -> Void) { onJsPrompt(message: message, defaultValue: defaultValue, result: {(result) -> Void in if result is FlutterError { print((result as! FlutterError).message) } else if (result as? NSObject) == FlutterMethodNotImplemented { self.createPromptDialog(message: message, defaultValue: defaultValue, responseMessage: nil, confirmButtonTitle: nil, cancelButtonTitle: nil, value: nil, completionHandler: completionHandler) } else { let response: [String: Any] var responseMessage: String?; var confirmButtonTitle: String?; var cancelButtonTitle: String?; var value: String?; if let r = result { response = r as! [String: Any] responseMessage = response["message"] as? String confirmButtonTitle = response["confirmButtonTitle"] as? String cancelButtonTitle = response["cancelButtonTitle"] as? String let handledByClient = response["handledByClient"] as? Bool value = response["value"] as? String; if handledByClient != nil, handledByClient! { var action = response["action"] as? Int action = action != nil ? action : 1; switch action { case 0: completionHandler(value) break case 1: completionHandler(nil) break default: completionHandler(nil) } return; } } self.createPromptDialog(message: message, defaultValue: defaultValue, responseMessage: responseMessage, confirmButtonTitle: confirmButtonTitle, cancelButtonTitle: cancelButtonTitle, value: value, completionHandler: completionHandler) } }) } public func scrollViewDidScroll(_ scrollView: UIScrollView) { if navigationDelegate != nil { let x = Int(scrollView.contentOffset.x / scrollView.contentScaleFactor) let y = Int(scrollView.contentOffset.y / scrollView.contentScaleFactor) onScrollChanged(x: x, y: y) } setNeedsLayout() } public func onLoadStart(url: String) { var arguments: [String: Any] = ["url": url] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onLoadStart", arguments: arguments) } } public func onLoadStop(url: String) { var arguments: [String: Any] = ["url": url] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onLoadStop", arguments: arguments) } } public func onLoadError(url: String, error: Error) { var arguments: [String: Any] = ["url": url, "code": error._code, "message": error.localizedDescription] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onLoadError", arguments: arguments) } } public func onProgressChanged(progress: Int) { var arguments: [String: Any] = ["progress": progress] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onProgressChanged", arguments: arguments) } } public func onLoadResource(initiatorType: String, url: String, startTime: Double, duration: Double) { var arguments: [String : Any] = [ "initiatorType": initiatorType, "url": url, "startTime": startTime, "duration": duration ] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onLoadResource", arguments: arguments) } } public func onScrollChanged(x: Int, y: Int) { var arguments: [String: Any] = ["x": x, "y": y] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onScrollChanged", arguments: arguments) } } public func onDownloadStart(url: String) { var arguments: [String: Any] = ["url": url] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onDownloadStart", arguments: arguments) } } public func onLoadResourceCustomScheme(scheme: String, url: String, result: FlutterResult?) { var arguments: [String: Any] = ["scheme": scheme, "url": url] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onLoadResourceCustomScheme", arguments: arguments, result: result) } } public func shouldOverrideUrlLoading(url: URL) { var arguments: [String: Any] = ["url": url.absoluteString] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("shouldOverrideUrlLoading", arguments: arguments) } } public func onTargetBlank(url: URL) { var arguments: [String: Any] = ["url": url.absoluteString] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onTargetBlank", arguments: arguments) } } public func onReceivedHttpAuthRequest(challenge: URLAuthenticationChallenge, result: FlutterResult?) { var arguments: [String: Any?] = [ "host": challenge.protectionSpace.host, "protocol": challenge.protectionSpace.protocol, "realm": challenge.protectionSpace.realm, "port": challenge.protectionSpace.port, "previousFailureCount": challenge.previousFailureCount ] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onReceivedHttpAuthRequest", arguments: arguments, result: result) } } public func onReceivedServerTrustAuthRequest(challenge: URLAuthenticationChallenge, result: FlutterResult?) { var serverCertificateData: NSData? let serverTrust = challenge.protectionSpace.serverTrust! if let serverCertificate = SecTrustGetCertificateAtIndex(serverTrust, 0) { let serverCertificateCFData = SecCertificateCopyData(serverCertificate) let data = CFDataGetBytePtr(serverCertificateCFData) let size = CFDataGetLength(serverCertificateCFData) serverCertificateData = NSData(bytes: data, length: size) } var arguments: [String: Any?] = [ "host": challenge.protectionSpace.host, "protocol": challenge.protectionSpace.protocol, "realm": challenge.protectionSpace.realm, "port": challenge.protectionSpace.port, "previousFailureCount": challenge.previousFailureCount, "serverCertificate": serverCertificateData, "error": -1, "message": "", ] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onReceivedServerTrustAuthRequest", arguments: arguments, result: result) } } public func onReceivedClientCertRequest(challenge: URLAuthenticationChallenge, result: FlutterResult?) { var arguments: [String: Any?] = [ "host": challenge.protectionSpace.host, "protocol": challenge.protectionSpace.protocol, "realm": challenge.protectionSpace.realm, "port": challenge.protectionSpace.port ] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onReceivedClientCertRequest", arguments: arguments, result: result) } } public func onJsAlert(message: String, result: FlutterResult?) { var arguments: [String: Any] = ["message": message] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onJsAlert", arguments: arguments, result: result) } } public func onJsConfirm(message: String, result: FlutterResult?) { var arguments: [String: Any] = ["message": message] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onJsConfirm", arguments: arguments, result: result) } } public func onJsPrompt(message: String, defaultValue: String?, result: FlutterResult?) { var arguments: [String: Any] = ["message": message, "defaultValue": defaultValue as Any] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onJsPrompt", arguments: arguments, result: result) } } public func onConsoleMessage(sourceURL: String, lineNumber: Int, message: String, messageLevel: Int) { var arguments: [String: Any] = ["sourceURL": sourceURL, "lineNumber": lineNumber, "message": message, "messageLevel": messageLevel] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onConsoleMessage", arguments: arguments) } } public func onCallJsHandler(handlerName: String, _callHandlerID: Int64, args: String) { var arguments: [String: Any] = ["handlerName": handlerName, "args": args] if IABController != nil { arguments["uuid"] = IABController!.uuid } if let channel = getChannel() { channel.invokeMethod("onCallJsHandler", arguments: arguments, result: {(result) -> Void in if result is FlutterError { print((result as! FlutterError).message) } else if (result as? NSObject) == FlutterMethodNotImplemented {} else { var json = "null" if let r = result { json = r as! String } self.evaluateJavaScript("window.\(JAVASCRIPT_BRIDGE_NAME)[\(_callHandlerID)](\(json)); delete window.\(JAVASCRIPT_BRIDGE_NAME)[\(_callHandlerID)];", completionHandler: nil) } }) } } public func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) { if message.name.starts(with: "console") { var messageLevel = 1 switch (message.name) { case "consoleLog": messageLevel = 1 break; case "consoleDebug": // on Android, console.debug is TIP messageLevel = 0 break; case "consoleError": messageLevel = 3 break; case "consoleInfo": // on Android, console.info is LOG messageLevel = 1 break; case "consoleWarn": messageLevel = 2 break; default: messageLevel = 1 break; } onConsoleMessage(sourceURL: "", lineNumber: 1, message: message.body as! String, messageLevel: messageLevel) } else if message.name == "resourceLoaded" && (options?.useOnLoadResource)! { if let resource = convertToDictionary(text: message.body as! String) { // escape special chars let resourceName = (resource["name"] as! String).addingPercentEncoding(withAllowedCharacters:NSCharacterSet.urlQueryAllowed) let url = URL(string: resourceName!)! if !UIApplication.shared.canOpenURL(url) { return } let initiatorType = resource["initiatorType"] as! String let startTime = resource["startTime"] as! Double let duration = resource["duration"] as! Double self.onLoadResource(initiatorType: initiatorType, url: url.absoluteString, startTime: startTime, duration: duration) } } else if message.name == "callHandler" { let body = message.body as! [String: Any] let handlerName = body["handlerName"] as! String let _callHandlerID = body["_callHandlerID"] as! Int64 let args = body["args"] as! String onCallJsHandler(handlerName: handlerName, _callHandlerID: _callHandlerID, args: args) } } private func getChannel() -> FlutterMethodChannel? { return (IABController != nil) ? SwiftFlutterPlugin.instance!.channel! : ((IAWController != nil) ? IAWController!.channel! : nil); } func findAllAsync(_ str: String?, completionHandler: ((Any?, Error?) -> Void)?) { let startSearch = "uiWebview_HighlightAllOccurencesOfString('\(str ?? "")'); uiWebview_SearchResultCount" evaluateJavaScript(startSearch, completionHandler: completionHandler) } func findNext(to index: Int, completionHandler: ((Any?, Error?) -> Void)?) { evaluateJavaScript("uiWebview_ScrollTo('\(index)')", completionHandler: completionHandler) } func clearMatches(completionHandler: ((Any?, Error?) -> Void)?) { evaluateJavaScript("uiWebview_RemoveAllHighlights()", completionHandler: completionHandler) } }