golden hour

/var/www/html/wp-includes/blocks

File/Folder	Size	Actions
archives	-
archives.php	2.7 KB
audio	-
block	-
block.php	1.47 KB
button	-
buttons	-
calendar	-
calendar.php	1.53 KB
categories	-
categories.php	2.59 KB
code	-
column	-
columns	-
cover	-
embed	-
file	-
file.php	897 B
freeform	-
gallery	-
group	-
heading	-
html	-
image	-
index.php	2.54 KB
latest-comments	-
latest-comments.php	4.88 KB
latest-posts	-
latest-posts.php	6.96 KB
legacy-widget	-
legacy-widget.php	3.73 KB
list	-
loginout	-
loginout.php	1.35 KB
media-text	-
missing	-
more	-
nextpage	-
page-list	-
page-list.php	7.09 KB
paragraph	-
post-content	-
post-content.php	1.84 KB
post-date	-
post-date.php	1.5 KB
post-excerpt	-
post-excerpt.php	2.38 KB
post-featured-image	-
post-featured-image.php	1.31 KB
post-template	-
post-template.php	2.66 KB
post-terms	-
post-terms.php	1.63 KB
post-title	-
post-title.php	1.57 KB
preformatted	-
pullquote	-
query	-
query-pagination	-
query-pagination-next	-
query-pagination-next.php	2.45 KB
query-pagination-numbers	-
query-pagination-numbers.php	2.72 KB
query-pagination-previous	-
query-pagination-previous.php	1.99 KB
query-pagination.php	359 B
query-title	-
query-title.php	1.35 KB
query.php	304 B
quote	-
rss	-
rss.php	3.21 KB
search	-
search.php	6.57 KB
separator	-
shortcode	-
shortcode.php	697 B
site-logo	-
site-logo.php	4.84 KB
site-tagline	-
site-tagline.php	994 B
site-title	-
site-title.php	1.21 KB
social-link	-
social-link.php	57.92 KB
social-links	-
spacer	-
table	-
tag-cloud	-
tag-cloud.php	1.24 KB
text-columns	-
verse	-
video	-

Edit: legacy-widget.php

<?php
/**
 * Server-side rendering of the `core/legacy-widget` block.
 *
 * @package WordPress
 */

/**
 * Renders the 'core/legacy-widget' block.
 *
 * @param array $attributes The block attributes.
 *
 * @return string Rendered block.
 */
function render_block_core_legacy_widget( $attributes ) {
	global $wp_widget_factory;

if ( isset( $attributes['id'] ) ) {
		$sidebar_id = wp_find_widgets_sidebar( $attributes['id'] );
		return wp_render_widget( $attributes['id'], $sidebar_id );
	}

if ( ! isset( $attributes['idBase'] ) ) {
		return '';
	}

$id_base = $attributes['idBase'];
	if ( method_exists( $wp_widget_factory, 'get_widget_key' ) && method_exists( $wp_widget_factory, 'get_widget_object' ) ) {
		$widget_key    = $wp_widget_factory->get_widget_key( $id_base );
		$widget_object = $wp_widget_factory->get_widget_object( $id_base );
	} else {
		/*
		 * This file is copied from the published @wordpress/widgets package when WordPress
		 * Core is built. Because the package is a dependency of both WordPress Core and the
		 * Gutenberg plugin where the block editor is developed, this fallback condition is
		 * required until the minimum required version of WordPress for the plugin is raised
		 * to 5.8.
		 */
		$widget_key    = gutenberg_get_widget_key( $id_base );
		$widget_object = gutenberg_get_widget_object( $id_base );
	}

if ( ! $widget_key || ! $widget_object ) {
		return '';
	}

if ( isset( $attributes['instance']['encoded'], $attributes['instance']['hash'] ) ) {
		$serialized_instance = base64_decode( $attributes['instance']['encoded'] );
		if ( ! hash_equals( wp_hash( $serialized_instance ), (string) $attributes['instance']['hash'] ) ) {
			return '';
		}
		$instance = unserialize( $serialized_instance );
	} else {
		$instance = array();
	}

$args = array(
		'widget_id'   => $widget_object->id,
		'widget_name' => $widget_object->name,
	);

ob_start();
	the_widget( $widget_key, $instance, $args );
	return ob_get_clean();
}

/**
 * Registers the 'core/legacy-widget' block.
 */
function register_block_core_legacy_widget() {
	register_block_type_from_metadata(
		__DIR__ . '/legacy-widget',
		array(
			'render_callback' => 'render_block_core_legacy_widget',
		)
	);
}

add_action( 'init', 'register_block_core_legacy_widget' );

/**
 * Intercepts any request with legacy-widget-preview in the query param and, if
 * set, renders a page containing a preview of the requested Legacy Widget
 * block.
 */
function handle_legacy_widget_preview_iframe() {
	if ( empty( $_GET['legacy-widget-preview'] ) ) {
		return;
	}

if ( ! current_user_can( 'edit_theme_options' ) ) {
		return;
	}

define( 'IFRAME_REQUEST', true );

?>
	<!doctype html>
	<html <?php language_attributes(); ?>>
	<head>
		<meta charset="<?php bloginfo( 'charset' ); ?>" />
		<meta name="viewport" content="width=device-width, initial-scale=1" />
		<link rel="profile" href="https://gmpg.org/xfn/11" />
		<?php wp_head(); ?>
		<style>
			/* Reset theme styles */
			html, body, #page, #content {
				padding: 0 !important;
				margin: 0 !important;
			}
		</style>
	</head>
	<body <?php body_class(); ?>>
		<div id="page" class="site">
			<div id="content" class="site-content">
				<?php
				$registry = WP_Block_Type_Registry::get_instance();
				$block    = $registry->get_registered( 'core/legacy-widget' );
				echo $block->render( $_GET['legacy-widget-preview'] );
				?>
			</div>
		</div>
		<?php wp_footer(); ?>
	</body>
	</html>
	<?php

exit;
}

// Use admin_init instead of init to ensure get_current_screen function is already available.
// This isn't strictly required, but enables better compatibility with existing plugins.
// See: https://github.com/WordPress/gutenberg/issues/32624.
add_action( 'admin_init', 'handle_legacy_widget_preview_iframe', 20 );