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- <?php
- /**
- * Server-side rendering of the `core/cover` block.
- *
- * @package WordPress
- */
- /**
- * Renders the `core/cover` block on server.
- *
- * @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;
- }
- if ( ! ( $attributes['hasParallax'] || $attributes['isRepeated'] ) ) {
- $attr = array(
- 'class' => 'wp-block-cover__image-background',
- 'data-object-fit' => 'cover',
- );
- if ( isset( $attributes['focalPoint'] ) ) {
- $object_position = round( $attributes['focalPoint']['x'] * 100 ) . '%' . ' ' . round( $attributes['focalPoint']['y'] * 100 ) . '%';
- $attr['data-object-position'] = $object_position;
- $attr['style'] = 'object-position: ' . $object_position;
- }
- $image = get_the_post_thumbnail( null, 'post-thumbnail', $attr );
- /*
- * Inserts the featured image between the (1st) cover 'background' `span` and 'inner_container' `div`,
- * and removes eventual withespace 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 );
- }
- } else {
- if ( in_the_loop() ) {
- update_post_thumbnail_cache();
- }
- $current_featured_image = get_the_post_thumbnail_url();
- $styles = 'background-image:url(' . esc_url( $current_featured_image ) . '); ';
- if ( isset( $attributes['minHeight'] ) ) {
- $height_unit = empty( $attributes['minHeightUnit'] ) ? 'px' : $attributes['minHeightUnit'];
- $height = " min-height:{$attributes['minHeight']}{$height_unit}";
- $styles .= $height;
- }
- $content = preg_replace(
- '/class=\".*?\"/',
- '${0} style="' . $styles . '"',
- $content,
- 1
- );
- }
- return $content;
- }
- /**
- * Registers the `core/cover` block renderer on server.
- */
- 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' );
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