Javascript Interfaces in SDK

• -(NSString *)getWebViewInterfaceName

  You must call the this method to retrieve the Interface Name which is need by the javascript to send message to native code, add this interface name as an item to the WKUserContentController instance.

• -(Engage *)handleWebviewRequest:(NSString *)body andNewEngagementHandler:(void (^)(NSDictionary *params,NSDictionary *datapass))completionBlock andEvaluateJSHandler:(void (^)(NSString *jsstring))jsBlock

  Call this method when ever application receives a message from Nuance Business Rule engine running within a WebView. Pass the body of the message as an argument to this method.

  andNewEngagementHandler: The given callback will be invoked when ever user requested for a new engagement session.

  andEvaluateJSHandler: This callback will be invoked when ever SDK needs to execute javascript command within the webview.

  andPendingMsgHandler: This callback will be invoked when there is a pending message from agent.

• -(NSString *)invokeEngagementFromWebView

	let contentController = WKUserContentController()
        contentController.add(
            self,
            name: NuanMessaging.getInstance().getWKWebViewInterfaceName()
        )

	
	func userContentController(_ userContentController:WKUserContentController, didReceive message: WKScriptMessage) {
	 if(message.name == NuanMessaging.getInstance().getWKWebViewInterfaceName()) {
        NuanMessaging.getInstance().handleWebviewRequest(message.body as! String, andNewEngagementHandler: { (params, datapass) in
            
          var vc:NuanceMessagingViewController;
                
                
          vc = launchMessagingViewControllerForHybrid(paramsDict: (params as? Dictionary)!,dataPass: (datapass as? Dictionary)!,  webview: self.webView)

          self.setupMessagingUIProps(vc: vc)
          
          DispatchQueue.main.async {
              
              self.present(vc, animated: false, completion: nil)
          }


        }, andEvaluateJSHandler: { (js) in
            self.webView.evaluateJavaScript(js!, completionHandler: nil)
        }, andPendingMsgHandler: { (c2cidx) in
                
            });
      
        
    }
	}