From 95d305254f937995d67b1bf3faf81910e7be3e71 Mon Sep 17 00:00:00 2001
From: "Xinlei(Ryan) Pan" <xinleiryan.pan@verizonwireless.com>
Date: Wed, 1 Apr 2020 19:28:31 -0400
Subject: [PATCH] add overlay

---
 MVMCoreUI/Atomic/Atoms/Views/WebView.swift | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/MVMCoreUI/Atomic/Atoms/Views/WebView.swift b/MVMCoreUI/Atomic/Atoms/Views/WebView.swift
index 72c8c33a..dd8b9776 100644
--- a/MVMCoreUI/Atomic/Atoms/Views/WebView.swift
+++ b/MVMCoreUI/Atomic/Atoms/Views/WebView.swift
@@ -17,6 +17,7 @@ import WebKit
         return model as? WebViewModel
     }
     var webView: WKWebView?
+    var overLayer = MVMCoreUICommonViewsUtility.commonView()
     public let loadingSpinner = MFLoadingSpinner(frame: .zero)
     var delegateObject: MVMCoreUIDelegateObject?
     var webViewHeight: NSLayoutConstraint?
@@ -26,6 +27,7 @@ import WebKit
     override open func setupView() {
         super.setupView()
         createWebView(messageHandler: mvmWebViewMessageHandler)
+        setupOverLayer()
         pinSpinnerView()
         
         //init height for loading spinner
@@ -69,6 +71,7 @@ import WebKit
             } else {
                 webView?.load(URLRequest(url: url))
                 webViewHeight?.constant = 44
+                overLayer.isHidden = false
                 loadingSpinner.resumeSpinner()
             }
         } else if let htmlString = webviewModel?.htmlString {
@@ -77,6 +80,7 @@ import WebKit
             } else {
                 webViewHeight?.constant = 44
                 webView?.loadHTMLString(htmlString, baseURL: nil)
+                overLayer.isHidden = false
                 loadingSpinner.resumeSpinner()
             }
         }
@@ -88,8 +92,6 @@ import WebKit
             webView?.layer.borderWidth = 0.0
             webView?.layer.borderColor = UIColor.clear.cgColor
         }
-        
-        bringSubviewToFront(loadingSpinner)
     }
     
     func pinSpinnerView() {
@@ -104,6 +106,12 @@ import WebKit
         loadingSpinner.centerYAnchor.constraint(equalTo: centerYAnchor).isActive = true
         loadingSpinner.resumeSpinner()
     }
+    
+    func setupOverLayer() {
+        addSubview(overLayer)
+        overLayer.backgroundColor = .white
+        NSLayoutConstraint.constraintPinSubview(toSuperview: overLayer)
+    }
 }
 
 
@@ -111,6 +119,7 @@ import WebKit
 extension WebView : WKUIDelegate {
     public func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
         // hide loading
+        overLayer.isHidden = true
         loadingSpinner.pause()
         
         //update webview's heigth when webview is ready