<?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 array $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 );
$content = str_replace(
'</span><div',
'</span>' . $image . '<div',
$content
);
} else {
if ( in_the_loop() ) {
update_post_thumbnail_cache();
}
$current_featured_image = get_the_post_thumbnail_url();
$content = preg_replace(
'/class=\".*?\"/',
'${0} style="background-image:url(' . esc_url( $current_featured_image ) . ')"',
$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' );