messagewebview: reload mainview if webengineview does not finish loading js

Gitlab: #134
Change-Id: I0d6406b80ad80cc7278e395bd51d0d7b02538aa0

src/mainview/MainView.qml

@@ -177,6 +177,19 @@ Window {
     // ConversationSmartListViewItemDelegate provides UI information
     function setMainView(currentUserDisplayName, currentUserAlias, currentUID,
                                callStackViewShouldShow, isAudioOnly, callState) {
+        if (!(communicationPageMessageWebView.jsLoaded)) {
+            communicationPageMessageWebView.jsLoadedChanged.connect(
+                        function(currentUserDisplayName, currentUserAlias, currentUID,
+                                 callStackViewShouldShow, isAudioOnly, callState) {
+                            return function() {
+                                setMainView(currentUserDisplayName, currentUserAlias, currentUID,
+                                            callStackViewShouldShow, isAudioOnly, callState)
+                            }
+                        }(currentUserDisplayName, currentUserAlias, currentUID,
+                          callStackViewShouldShow, isAudioOnly, callState))
+            return
+        }
+
         if (callStackViewShouldShow) {
             if (inSettingsView) {
                 toggleSettingsView()

src/mainview/components/MessageWebView.qml

@@ -32,6 +32,7 @@ Rectangle {
     property int messageWebViewHeaderPreferredHeight: 64
     property string headerUserAliasLabelText: ""
     property string headerUserUserNameLabelText: ""
+    property bool jsLoaded: false
 
     signal needToHideConversationInCall
 
@@ -256,7 +257,8 @@ Rectangle {
                 messageWebView.runJavaScript(UtilsAdapter.qStringFromFile(
                                                  ":/qwebchannel.js"))
                 messageWebView.runJavaScript(UtilsAdapter.qStringFromFile(
-                                                 ":/chatview.js"))
+                                                 ":/chatview.js"),
+                                             function(){jsLoaded = true})
                 messageWebView.runJavaScript("init_i18n();")
                 messageWebView.runJavaScript("displayNavbar(false);")
             }