Fix bug in frame drawing

Prevent creation of two frame painters at the same time

Author: linev

scripts/JSRoot.gpad.js

@@ -4358,13 +4358,13 @@ JSROOT.define(['d3', 'painter'], (d3, jsrp) => {
 
       painter.addPadButtons();
 
-      if (nocanvas && opt.indexOf("noframe") < 0)
-         drawFrame(divid, null);
-
-      // select global reference - required for keys handling
-      jsrp.selectActivePad({ pp: painter, active: true });
+      let promise = (nocanvas && opt.indexOf("noframe") < 0) ? drawFrame(divid, null) : Promise.resolve(true);
+      return promise.then(() => {
+         // select global reference - required for keys handling
+         jsrp.selectActivePad({ pp: painter, active: true });
 
-      return painter.drawPrimitives().then(() => {
+         return painter.drawPrimitives();
+      }).then(() => {
          painter.showPadButtons();
          return painter;
       });