1 files changed, 59 insertions, 0 deletions
diff --git a/wp-includes/blocks/query-no-results.php b/wp-includes/blocks/query-no-results.php
new file mode 100644
index 0000000..a6f4bd1
--- /dev/null
+++ b/wp-includes/blocks/query-no-results.php
@@ -0,0 +1,59 @@
+<?php
+/**
+ * Server-side rendering of the `core/query-no-results` block.
+ *
+ * @package WordPress
+ */
+
+/**
+ * Renders the `core/query-no-results` block on the server.
+ *
+ * @param array    $attributes Block attributes.
+ * @param string   $content    Block default content.
+ * @param WP_Block $block      Block instance.
+ *
+ * @return string Returns the wrapper for the no results block.
+ */
+function render_block_core_query_no_results( $attributes, $content, $block ) {
+	if ( empty( trim( $content ) ) ) {
+		return '';
+	}
+
+	$page_key = isset( $block->context['queryId'] ) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page';
+	$page     = empty( $_GET[ $page_key ] ) ? 1 : (int) $_GET[ $page_key ];
+
+	// Override the custom query with the global query if needed.
+	$use_global_query = ( isset( $block->context['query']['inherit'] ) && $block->context['query']['inherit'] );
+	if ( $use_global_query ) {
+		global $wp_query;
+		$query = $wp_query;
+	} else {
+		$query_args = build_query_vars_from_query_block( $block, $page );
+		$query      = new WP_Query( $query_args );
+	}
+
+	if ( $query->post_count > 0 ) {
+		return '';
+	}
+
+	$classes            = ( isset( $attributes['style']['elements']['link']['color']['text'] ) ) ? 'has-link-color' : '';
+	$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classes ) );
+	return sprintf(
+		'<div %1$s>%2$s</div>',
+		$wrapper_attributes,
+		$content
+	);
+}
+
+/**
+ * Registers the `core/query-no-results` block on the server.
+ */
+function register_block_core_query_no_results() {
+	register_block_type_from_metadata(
+		__DIR__ . '/query-no-results',
+		array(
+			'render_callback' => 'render_block_core_query_no_results',
+		)
+	);
+}
+add_action( 'init', 'register_block_core_query_no_results' );