fineui/src/core/element/plugins/html.js

export const registHtmlFun = (Element) => {
  Element.registerFunction('html', function (text) {
    if (text && text.charAt(0) === '<') {
      BI.createWidget({
        type: 'bi.html',
        element: this.widget,
        html: text,
      });
      this.originalHtml = text;
    } else {
      this.text = BI.htmlDecode(text);
    }
    return this;
  });
};