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Diffstat (limited to '')
-rw-r--r-- | wp-includes/blocks/cover.php | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/wp-includes/blocks/cover.php b/wp-includes/blocks/cover.php new file mode 100644 index 0000000..5f6b2ca --- /dev/null +++ b/wp-includes/blocks/cover.php @@ -0,0 +1,78 @@ +<?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 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 ); + } + } else { + if ( in_the_loop() ) { + update_post_thumbnail_cache(); + } + $current_featured_image = get_the_post_thumbnail_url(); + if ( ! $current_featured_image ) { + return $content; + } + + $processor = new WP_HTML_Tag_Processor( $content ); + $processor->next_tag(); + + $styles = $processor->get_attribute( 'style' ); + $merged_styles = ! empty( $styles ) ? $styles . ';' : ''; + $merged_styles .= 'background-image:url(' . esc_url( $current_featured_image ) . ');'; + + $processor->set_attribute( 'style', $merged_styles ); + $content = $processor->get_updated_html(); + } + + 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' ); |