naive-ui/es/_internal/focus-detector/src/FocusDetector.mjs

A Vue 3 Component Library. Fairly Complete, Theme Customizable, Uses TypeScript, Fast

import { defineComponent, h } from 'vue';
export default defineComponent({
  props: {
    onFocus: Function,
    onBlur: Function
  },
  setup(props) {
    return () => h("div", {
      style: "width: 0; height: 0",
      tabindex: 0,
      onFocus: props.onFocus,
      onBlur: props.onBlur
    });
  }
});