@wordpress/editor/build-module/components/page-attributes/check.js

Enhanced block editor for WordPress posts.

/**
 * WordPress dependencies
 */
import { useSelect } from '@wordpress/data';
import { store as coreStore } from '@wordpress/core-data';

/**
 * Internal dependencies
 */
import { store as editorStore } from '../../store';

/**
 * Wrapper component that renders its children only if the post type supports page attributes.
 *
 * @param {Object}  props          - The component props.
 * @param {Element} props.children - The child components to render.
 *
 * @return {Component|null} The rendered child components or null if page attributes are not supported.
 */
export function PageAttributesCheck({
  children
}) {
  const supportsPageAttributes = useSelect(select => {
    const {
      getEditedPostAttribute
    } = select(editorStore);
    const {
      getPostType
    } = select(coreStore);
    const postType = getPostType(getEditedPostAttribute('type'));
    return !!postType?.supports?.['page-attributes'];
  }, []);

  // Only render fields if post type supports page attributes or available templates exist.
  if (!supportsPageAttributes) {
    return null;
  }
  return children;
}
export default PageAttributesCheck;
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