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📝 Edit File: cover.php

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

/**
 * Renders the `core/cover` block on server.
 *
 * @since 6.0.0
 *
 * @param array  $attributes The block attributes.
 * @param string $content    The block rendered content.
 *
 * @return string Returns the cover block markup, if useFeaturedImage is true.
 */
function render_block_core_cover( $attributes, $content ) {
	if ( 'image' !== $attributes['backgroundType'] || false === $attributes['useFeaturedImage'] ) {
		return $content;
	}

$object_position = isset( $attributes['focalPoint'] )
		? round( $attributes['focalPoint']['x'] * 100 ) . '% ' . round( $attributes['focalPoint']['y'] * 100 ) . '%'
		: null;

if ( ! ( $attributes['hasParallax'] || $attributes['isRepeated'] ) ) {
		$attr = array(
			'class'           => 'wp-block-cover__image-background',
			'data-object-fit' => 'cover',
		);

if ( $object_position ) {
			$attr['data-object-position'] = $object_position;
			$attr['style']                = 'object-position:' . $object_position . ';';
		}

$image = get_the_post_thumbnail( null, 'post-thumbnail', $attr );
	} else {
		if ( in_the_loop() ) {
			update_post_thumbnail_cache();
		}
		$current_featured_image = get_the_post_thumbnail_url();
		if ( ! $current_featured_image ) {
			return $content;
		}

$current_thumbnail_id = get_post_thumbnail_id();

$processor = new WP_HTML_Tag_Processor( '<div></div>' );
		$processor->next_tag();

$current_alt = trim( strip_tags( get_post_meta( $current_thumbnail_id, '_wp_attachment_image_alt', true ) ) );
		if ( $current_alt ) {
			$processor->set_attribute( 'role', 'img' );
			$processor->set_attribute( 'aria-label', $current_alt );
		}

$processor->add_class( 'wp-block-cover__image-background' );
		$processor->add_class( 'wp-image-' . $current_thumbnail_id );
		if ( $attributes['hasParallax'] ) {
			$processor->add_class( 'has-parallax' );
		}
		if ( $attributes['isRepeated'] ) {
			$processor->add_class( 'is-repeated' );
		}

$styles  = 'background-position:' . ( $object_position ?? '50% 50%' ) . ';';
		$styles .= 'background-image:url(' . esc_url( $current_featured_image ) . ');';
		$processor->set_attribute( 'style', $styles );

$image = $processor->get_updated_html();
	}

/*
	 * Inserts the featured image between the (1st) cover 'background' `span` and 'inner_container' `div`,
	 * and removes eventual whitespace characters between the two (typically introduced at template level)
	 */
	$inner_container_start = '/<div\b[^>]+wp-block-cover__inner-container[\s|"][^>]*>/U';
	if ( 1 === preg_match( $inner_container_start, $content, $matches, PREG_OFFSET_CAPTURE ) ) {
		$offset  = $matches[0][1];
		$content = substr( $content, 0, $offset ) . $image . substr( $content, $offset );
	}

return $content;
}

/**
 * Registers the `core/cover` block renderer on server.
 *
 * @since 6.0.0
 */
function register_block_core_cover() {
	register_block_type_from_metadata(
		__DIR__ . '/cover',
		array(
			'render_callback' => 'render_block_core_cover',
		)
	);
}
add_action( 'init', 'register_block_core_cover' );

Type	Item Name	Actions
📁	..
📁	archives
📁	audio
📁	avatar
📁	block
📁	button
📁	buttons
📁	calendar
📁	categories
📁	code
📁	column
📁	columns
📁	comment-author-name
📁	comment-content
📁	comment-date
📁	comment-edit-link
📁	comment-reply-link
📁	comment-template
📁	comments
📁	comments-pagination
📁	comments-pagination-next
📁	comments-pagination-numbers
📁	comments-pagination-previous
📁	comments-title
📁	cover
📁	details
📁	embed
📁	file
📁	footnotes
📁	freeform
📁	gallery
📁	group
📁	heading
📁	home-link
📁	html
📁	image
📁	latest-comments
📁	latest-posts
📁	legacy-widget
📁	list
📁	list-item
📁	loginout
📁	media-text
📁	missing
📁	more
📁	navigation
📁	navigation-link
📁	navigation-submenu
📁	nextpage
📁	page-list
📁	page-list-item
📁	paragraph
📁	pattern
📁	post-author
📁	post-author-biography
📁	post-author-name
📁	post-comments-form
📁	post-content
📁	post-date
📁	post-excerpt
📁	post-featured-image
📁	post-navigation-link
📁	post-template
📁	post-terms
📁	post-title
📁	preformatted
📁	pullquote
📁	query
📁	query-no-results
📁	query-pagination
📁	query-pagination-next
📁	query-pagination-numbers
📁	query-pagination-previous
📁	query-title
📁	quote
📁	read-more
📁	rss
📁	search
📁	separator
📁	shortcode
📁	site-logo
📁	site-tagline
📁	site-title
📁	social-link
📁	social-links
📁	spacer
📁	table
📁	tag-cloud
📁	template-part
📁	term-description
📁	text-columns
📁	verse
📁	video
📁	widget-group
📄	archives.php
📄	avatar.php
📄	block.php
📄	blocks-json.php
📄	button.php
📄	calendar.php
📄	categories.php
📄	comment-author-name.php
📄	comment-content.php
📄	comment-date.php
📄	comment-edit-link.php
📄	comment-reply-link.php
📄	comment-template.php
📄	comments-pagination-next.php
📄	comments-pagination-numbers.php
📄	comments-pagination-previous.php
📄	comments-pagination.php
📄	comments-title.php
📄	comments.php
📄	cover.php
📄	file.php
📄	footnotes.php
📄	gallery.php
📄	heading.php
📄	home-link.php
📄	image.php
📄	index.php
📄	latest-comments.php
📄	latest-posts.php
📄	legacy-widget.php
📄	list.php
📄	loginout.php
📄	media-text.php
📄	navigation-link.php
📄	navigation-submenu.php
📄	navigation.php
📄	page-list-item.php
📄	page-list.php
📄	pattern.php
📄	post-author-biography.php
📄	post-author-name.php
📄	post-author.php
📄	post-comments-form.php
📄	post-content.php
📄	post-date.php
📄	post-excerpt.php
📄	post-featured-image.php
📄	post-navigation-link.php
📄	post-template.php
📄	post-terms.php
📄	post-title.php
📄	query-no-results.php
📄	query-pagination-next.php
📄	query-pagination-numbers.php
📄	query-pagination-previous.php
📄	query-pagination.php
📄	query-title.php
📄	query.php
📄	read-more.php
📄	require-dynamic-blocks.php
📄	require-static-blocks.php
📄	rss.php
📄	search.php
📄	shortcode.php
📄	site-logo.php
📄	site-tagline.php
📄	site-title.php
📄	social-link.php
📄	tag-cloud.php
📄	template-part.php
📄	term-description.php
📄	widget-group.php