example for HTML and Image

Author: maartenbreddels

packages/controls/src/widget_image.ts

@@ -26,6 +26,15 @@ export class ImageModel extends CoreDOMWidgetModel {
       }
     }
   };
+
+  async generateMimeBundle() {
+    const view: ImageView = await this.widget_manager.create_view<ImageView>(
+      this
+    );
+    return Promise.resolve({
+      'text/html': view.el.outerHTML
+    });
+  }
 }
 
 export class ImageView extends DOMWidgetView {

packages/controls/src/widget_string.ts

@@ -52,6 +52,11 @@ export class HTMLModel extends StringModel {
       _model_name: 'HTMLModel'
     };
   }
+  generateMimeBundle() {
+    return Promise.resolve({
+      'text/html': this.get('value')
+    });
+  }
 }
 
 export class HTMLView extends StringView {