@wordpress/components/build-module/responsive-wrapper/index.js

UI components for WordPress.

import { createElement } from "@wordpress/element";

/**
 * External dependencies
 */
import classnames from 'classnames';
/**
 * WordPress dependencies
 */

import { cloneElement, Children } from '@wordpress/element';
/**
 * Internal dependencies
 */

/**
 * A wrapper component that maintains its aspect ratio when resized.
 *
 * ```jsx
 * import { ResponsiveWrapper } from '@wordpress/components';
 *
 * const MyResponsiveWrapper = () => (
 * 	<ResponsiveWrapper naturalWidth={ 2000 } naturalHeight={ 680 }>
 * 		<img
 * 			src="https://s.w.org/style/images/about/WordPress-logotype-standard.png"
 * 			alt="WordPress"
 * 		/>
 * 	</ResponsiveWrapper>
 * );
 * ```
 */
function ResponsiveWrapper(_ref) {
  let {
    naturalWidth,
    naturalHeight,
    children,
    isInline = false
  } = _ref;

  if (Children.count(children) !== 1) {
    return null;
  }

  const TagName = isInline ? 'span' : 'div';
  let aspectRatio;

  if (naturalWidth && naturalHeight) {
    aspectRatio = `${naturalWidth} / ${naturalHeight}`;
  }

  return createElement(TagName, {
    className: "components-responsive-wrapper"
  }, createElement("div", null, cloneElement(children, {
    className: classnames('components-responsive-wrapper__content', children.props.className),
    style: { ...children.props.style,
      aspectRatio
    }
  })));
}

export default ResponsiveWrapper;
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