Custom widgets working

packages/voila/src/manager.ts

@@ -38,6 +38,12 @@ import { Widget } from '@lumino/widgets';
 
 import { requireLoader } from './loader';
 
+function windowDefine(name: string, module: any) {
+  if (typeof window !== 'undefined' && typeof window.define !== 'undefined') {
+    window.define(name, module);
+  }
+}
+
 if (typeof window !== 'undefined' && typeof window.define !== 'undefined') {
   window.define('jquery', $);
 
@@ -184,13 +190,18 @@ export class WidgetManager extends JupyterLabManager {
     this.register({
       name: '@jupyter-widgets/base',
       version: "2.0.0",
-      exports: async () => require('@jupyter-widgets/base') as any,
+      exports: async () => {
+        const baseWidgets = require('@jupyter-widgets/base') as any;
+        windowDefine('@jupyter-widgets/base', baseWidgets);
+        return baseWidgets;
+      },
     });
     this.register({
       name: '@jupyter-widgets/controls',
       version: "2.0.0",
       exports: async () => {
         const controlsWidgets = require('@jupyter-widgets/controls') as any;
+        windowDefine('@jupyter-widgets/controls', controlsWidgets);
         require('@jupyter-widgets/controls/css/widgets-base.css');
         return controlsWidgets;
       },
@@ -203,13 +214,18 @@ export class WidgetManager extends JupyterLabManager {
     this.register({
       name: '@jupyter-widgets/base',
       version: "1.2.0",
-      exports: async () => require('@jupyter-widgets/base7') as any,
+      exports: async () => {
+        const base7Widgets = require('@jupyter-widgets/base7') as any
+        windowDefine('@jupyter-widgets/base', base7Widgets);
+        return base7Widgets;
+      },
     });
     this.register({
       name: '@jupyter-widgets/controls',
       version: "1.5.0",
       exports: async () => {
         const controls7Widget = require('@jupyter-widgets/controls7') as any;
+        windowDefine('@jupyter-widgets/controls', controls7Widget);
         require('@jupyter-widgets/controls7/css/widgets-base.css');
         return controls7Widget;
       },