@base-ui-components/react/esm/radio/indicator/RadioIndicator.js

Base UI is a library of headless ('unstyled') React components and low-level hooks. You gain complete control over your app's CSS and accessibility features.

'use client';

import * as React from 'react';
import PropTypes from 'prop-types';
import { useComponentRenderer } from '../../utils/useComponentRenderer.js';
import { useRadioRootContext } from '../root/RadioRootContext.js';
import { customStyleHookMapping } from '../utils/customStyleHookMapping.js';
import { useAfterExitAnimation } from '../../utils/useAfterExitAnimation.js';
import { useForkRef } from '../../utils/useForkRef.js';
import { useTransitionStatus } from '../../utils/useTransitionStatus.js';

/**
 * Indicates whether the radio button is selected.
 * Renders a `<span>` element.
 *
 * Documentation: [Base UI Radio](https://base-ui.com/react/components/radio)
 */
const RadioIndicator = /*#__PURE__*/React.forwardRef(function RadioIndicator(props, forwardedRef) {
  const {
    render,
    className,
    keepMounted = true,
    ...otherProps
  } = props;
  const rootState = useRadioRootContext();
  const rendered = rootState.checked;
  const {
    mounted,
    transitionStatus,
    setMounted
  } = useTransitionStatus(rendered);
  const state = React.useMemo(() => ({
    ...rootState,
    transitionStatus
  }), [rootState, transitionStatus]);
  const indicatorRef = React.useRef(null);
  const mergedRef = useForkRef(forwardedRef, indicatorRef);
  const {
    renderElement
  } = useComponentRenderer({
    render: render ?? 'span',
    ref: mergedRef,
    className,
    state,
    extraProps: {
      hidden: !mounted,
      ...otherProps
    },
    customStyleHookMapping
  });
  useAfterExitAnimation({
    open: rendered,
    animatedElementRef: indicatorRef,
    onFinished() {
      setMounted(false);
    }
  });
  const shouldRender = keepMounted || rendered;
  if (!shouldRender) {
    return null;
  }
  return renderElement();
});
process.env.NODE_ENV !== "production" ? RadioIndicator.propTypes /* remove-proptypes */ = {
  // ┌────────────────────────────── Warning ──────────────────────────────┐
  // │ These PropTypes are generated from the TypeScript type definitions. │
  // │ To update them, edit the TypeScript types and run `pnpm proptypes`. │
  // └─────────────────────────────────────────────────────────────────────┘
  /**
   * @ignore
   */
  children: PropTypes.node,
  /**
   * CSS class applied to the element, or a function that
   * returns a class based on the component’s state.
   */
  className: PropTypes.oneOfType([PropTypes.func, PropTypes.string]),
  /**
   * Whether to keep the HTML element in the DOM when the radio button is inactive.
   * @default true
   */
  keepMounted: PropTypes.bool,
  /**
   * Allows you to replace the component’s HTML element
   * with a different tag, or compose it with another component.
   *
   * Accepts a `ReactElement` or a function that returns the element to render.
   */
  render: PropTypes.oneOfType([PropTypes.element, PropTypes.func])
} : void 0;
export { RadioIndicator };