nodejs: support diagram editor

web/documentserver-example/nodejs/helpers/fileUtility.js

@@ -78,7 +78,7 @@ fileUtility.fileType = {
   cell: 'cell',
   slide: 'slide',
   pdf: 'pdf',
-  visio: 'visio',
+  diagram: 'diagram',
 };
 
 fileUtility.getFormatActions = function getExtensionActions(ext) {

web/documentserver-example/nodejs/helpers/wopi/utils.js

@@ -165,8 +165,8 @@ const getEditNewText = function getEditNewText(ext) {
       return 'Presentation';
     case 'pdf':
       return 'PDF form';
-    case 'visio':
-      return 'Visio';
+    case 'diagram':
+      return 'Diagram';
     default:
       return ext.toUpperCase();
   }

web/documentserver-example/nodejs/public/stylesheets/stylesheet.css

@@ -647,8 +647,8 @@ footer table tr td:first-child {
     background-image: url("../images/icon_pdf.svg");
 }
 
-.stored-edit.visio,
-.uploadFileName.visio {
+.stored-edit.diagram,
+.uploadFileName.diagram {
     background-image: url("../images/icon_vsdx.svg");
 }