add custom user scripts for webapps defined in webapp-properties.json

src/app/webcontainer/webapp-container.qml

@@ -179,9 +179,43 @@ BrowserWindow {
         focus: true
 
         onLoaded: {
-            var context = item.currentWebview.context
-            onlineAccountsController.setupWebcontextForAccount(context)
-            item.currentWebview.settings.localContentCanAccessRemoteUrls = localContentCanAccessRemoteUrls
+            var context = item.currentWebview.context;
+            onlineAccountsController.setupWebcontextForAccount(context);
+            item.currentWebview.settings.localContentCanAccessRemoteUrls = localContentCanAccessRemoteUrls;
+
+            loadCustomUserScripts();
+        }
+
+        function loadCustomUserScripts() {
+
+            var scripts = [];
+
+            // app specific user scripts
+            var idx = webappModel.getWebappIndex(getWebappName());
+            var customScripts = webappModel.data(idx, UnityWebApps.UnityWebappsAppModel.Scripts);
+
+            if (customScripts.length === 0)
+            {
+                return;
+            }
+
+            var i;
+            for (i = 0; i < customScripts.length; i++)
+            {
+              var script = Qt.createQmlObject('import QtWebEngine 1.7; WebEngineScript {}', webappViewLoader);
+              script.sourceUrl = customScripts[i];
+              script.injectionPoint = WebEngineScript.DocumentCreation;
+              script.worldId = WebEngineScript.MainWorld;
+              script.runOnSubframes = true;
+              scripts.push(script);
+            }
+
+            // global user scripts
+            for (i = 0; i < item.currentWebview.profile.userScripts.length; i++) {
+              scripts.push(item.currentWebview.profile.userScripts[i]);
+            }
+
+            item.currentWebview.profile.userScripts = scripts;
         }
     }