1<?php
  2/**
  3 * Server-side rendering of the `core/media-text` block.
  4 *
  5 * @package WordPress
  6 */
  7
  8/**
  9 * Renders the `core/media-text` block on server.
 10 *
 11 * @since 6.6.0
 12 *
 13 * @param array  $attributes The block attributes.
 14 * @param string $content    The block rendered content.
 15 *
 16 * @return string Returns the Media & Text block markup, if useFeaturedImage is true.
 17 */
 18function render_block_core_media_text( $attributes, $content ) {
 19	if ( false === $attributes['useFeaturedImage'] ) {
 20		return $content;
 21	}
 22
 23	if ( in_the_loop() ) {
 24		update_post_thumbnail_cache();
 25	}
 26
 27	$current_featured_image = get_the_post_thumbnail_url();
 28	if ( ! $current_featured_image ) {
 29		return $content;
 30	}
 31
 32	$has_media_on_right = isset( $attributes['mediaPosition'] ) && 'right' === $attributes['mediaPosition'];
 33	$image_fill         = isset( $attributes['imageFill'] ) && $attributes['imageFill'];
 34	$focal_point        = isset( $attributes['focalPoint'] ) ? round( $attributes['focalPoint']['x'] * 100 ) . '% ' . round( $attributes['focalPoint']['y'] * 100 ) . '%' : '50% 50%';
 35	$unique_id          = 'wp-block-media-text__media-' . wp_unique_id();
 36
 37	$block_tag_processor = new WP_HTML_Tag_Processor( $content );
 38	$block_query         = array(
 39		'tag_name'   => 'div',
 40		'class_name' => 'wp-block-media-text',
 41	);
 42
 43	while ( $block_tag_processor->next_tag( $block_query ) ) {
 44		if ( $image_fill ) {
 45			// The markup below does not work with the deprecated `is-image-fill` class.
 46			$block_tag_processor->remove_class( 'is-image-fill' );
 47			$block_tag_processor->add_class( 'is-image-fill-element' );
 48		}
 49	}
 50
 51	$content = $block_tag_processor->get_updated_html();
 52
 53	$media_tag_processor   = new WP_HTML_Tag_Processor( $content );
 54	$wrapping_figure_query = array(
 55		'tag_name'   => 'figure',
 56		'class_name' => 'wp-block-media-text__media',
 57	);
 58
 59	if ( $has_media_on_right ) {
 60		// Loop through all the figure tags and set a bookmark on the last figure tag.
 61		while ( $media_tag_processor->next_tag( $wrapping_figure_query ) ) {
 62			$media_tag_processor->set_bookmark( 'last_figure' );
 63		}
 64		if ( $media_tag_processor->has_bookmark( 'last_figure' ) ) {
 65			$media_tag_processor->seek( 'last_figure' );
 66			// Insert a unique ID to identify the figure tag.
 67			$media_tag_processor->set_attribute( 'id', $unique_id );
 68		}
 69	} else {
 70		if ( $media_tag_processor->next_tag( $wrapping_figure_query ) ) {
 71			// Insert a unique ID to identify the figure tag.
 72			$media_tag_processor->set_attribute( 'id', $unique_id );
 73		}
 74	}
 75
 76	$content = $media_tag_processor->get_updated_html();
 77
 78	// Add the image tag inside the figure tag, and update the image attributes
 79	// in order to display the featured image.
 80	$media_size_slug = isset( $attributes['mediaSizeSlug'] ) ? $attributes['mediaSizeSlug'] : 'full';
 81	$image_tag       = '<img class="wp-block-media-text__featured_image">';
 82	$content         = preg_replace(
 83		'/(<figure\s+id="' . preg_quote( $unique_id, '/' ) . '"\s+class="wp-block-media-text__media"\s*>)/',
 84		'$1' . $image_tag,
 85		$content
 86	);
 87
 88	$image_tag_processor = new WP_HTML_Tag_Processor( $content );
 89	if ( $image_tag_processor->next_tag(
 90		array(
 91			'tag_name' => 'figure',
 92			'id'       => $unique_id,
 93		)
 94	) ) {
 95		// The ID is only used to ensure that the correct figure tag is selected,
 96		// and can now be removed.
 97		$image_tag_processor->remove_attribute( 'id' );
 98		if ( $image_tag_processor->next_tag(
 99			array(
100				'tag_name'   => 'img',
101				'class_name' => 'wp-block-media-text__featured_image',
102			)
103		) ) {
104			$image_tag_processor->set_attribute( 'src', esc_url( $current_featured_image ) );
105			$image_tag_processor->set_attribute( 'class', 'wp-image-' . get_post_thumbnail_id() . ' size-' . $media_size_slug );
106			$image_tag_processor->set_attribute( 'alt', trim( strip_tags( get_post_meta( get_post_thumbnail_id(), '_wp_attachment_image_alt', true ) ) ) );
107			if ( $image_fill ) {
108				$image_tag_processor->set_attribute( 'style', 'object-position:' . $focal_point . ';' );
109			}
110
111			$content = $image_tag_processor->get_updated_html();
112		}
113	}
114
115	return $content;
116}
117
118/**
119 * Registers the `core/media-text` block renderer on server.
120 *
121 * @since 6.6.0
122 */
123function register_block_core_media_text() {
124	register_block_type_from_metadata(
125		__DIR__ . '/media-text',
126		array(
127			'render_callback' => 'render_block_core_media_text',
128		)
129	);
130}
131add_action( 'init', 'register_block_core_media_text' );
132