108 lines
3.0 KiB
PHP
108 lines
3.0 KiB
PHP
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<?php
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/**
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* Server-side rendering of the `core/block` block.
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*
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* @package WordPress
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*/
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/**
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* Renders the `core/block` block on server.
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*
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* @param array $attributes The block attributes.
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*
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* @return string Rendered HTML of the referenced block.
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*/
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function render_block_core_block( $attributes ) {
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static $seen_refs = array();
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if ( empty( $attributes['ref'] ) ) {
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return '';
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}
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$reusable_block = get_post( $attributes['ref'] );
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if ( ! $reusable_block || 'wp_block' !== $reusable_block->post_type ) {
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return '';
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}
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if ( isset( $seen_refs[ $attributes['ref'] ] ) ) {
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// WP_DEBUG_DISPLAY must only be honored when WP_DEBUG. This precedent
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// is set in `wp_debug_mode()`.
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$is_debug = WP_DEBUG && WP_DEBUG_DISPLAY;
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return $is_debug ?
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// translators: Visible only in the front end, this warning takes the place of a faulty block.
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__( '[block rendering halted]' ) :
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'';
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}
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if ( 'publish' !== $reusable_block->post_status || ! empty( $reusable_block->post_password ) ) {
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return '';
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}
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$seen_refs[ $attributes['ref'] ] = true;
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// Handle embeds for reusable blocks.
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global $wp_embed;
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$content = $wp_embed->run_shortcode( $reusable_block->post_content );
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$content = $wp_embed->autoembed( $content );
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// Back compat.
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// For blocks that have not been migrated in the editor, add some back compat
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// so that front-end rendering continues to work.
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// This matches the `v2` deprecation. Removes the inner `values` property
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// from every item.
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if ( isset( $attributes['content'] ) ) {
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foreach ( $attributes['content'] as &$content_data ) {
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if ( isset( $content_data['values'] ) ) {
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$is_assoc_array = is_array( $content_data['values'] ) && ! wp_is_numeric_array( $content_data['values'] );
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if ( $is_assoc_array ) {
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$content_data = $content_data['values'];
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}
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}
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}
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}
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// This matches the `v1` deprecation. Rename `overrides` to `content`.
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if ( isset( $attributes['overrides'] ) && ! isset( $attributes['content'] ) ) {
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$attributes['content'] = $attributes['overrides'];
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}
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/**
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* We set the `pattern/overrides` context through the `render_block_context`
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* filter so that it is available when a pattern's inner blocks are
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* rendering via do_blocks given it only receives the inner content.
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*/
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$has_pattern_overrides = isset( $attributes['content'] );
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if ( $has_pattern_overrides ) {
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$filter_block_context = static function ( $context ) use ( $attributes ) {
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$context['pattern/overrides'] = $attributes['content'];
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return $context;
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};
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add_filter( 'render_block_context', $filter_block_context, 1 );
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}
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$content = do_blocks( $content );
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unset( $seen_refs[ $attributes['ref'] ] );
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if ( $has_pattern_overrides ) {
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remove_filter( 'render_block_context', $filter_block_context, 1 );
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}
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return $content;
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}
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/**
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* Registers the `core/block` block.
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*/
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function register_block_core_block() {
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register_block_type_from_metadata(
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__DIR__ . '/block',
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array(
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'render_callback' => 'render_block_core_block',
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)
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);
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}
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add_action( 'init', 'register_block_core_block' );
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