Block Patterns: Load patterns from wordpress.org API

lib/block-patterns.php

@@ -0,0 +1,36 @@
+<?php
+/**
+ * Block Pattern functionality.
+ *
+ * @package gutenberg
+ */
+
+/**
+ * Register "core" patterns from the WordPress.org pattern directory.
+ */
+function gutenberg_register_remote_block_patterns() {
+	$should_register_core_patterns = get_theme_support( 'core-block-patterns' );
+
+	// Unregister the bundled core patterns.
+	$patterns = WP_Block_Patterns_Registry::get_instance()->get_all_registered();
+	foreach ( $patterns as $pattern ) {
+		if ( 'core/' === substr( $pattern['name'], 0, 5 ) ) {
+			unregister_block_pattern( $pattern['name'] );
+		}
+	}
+
+	if ( $should_register_core_patterns ) {
+		$request = new WP_REST_Request( 'GET', '/__experimental/pattern-directory/patterns' );
+		$request->set_param( 'keyword', 11 ); // 11 is the ID for "core".
+		$response = rest_do_request( $request );
+		if ( $response->is_error() ) {
+			return;
+		}
+		$patterns = $response->get_data();
+		foreach ( $patterns as $settings ) {
+			$pattern_name = 'core/' . sanitize_title( $settings['title'] );
+			register_block_pattern( $pattern_name, (array) $settings );
+		}
+	}
+}
+add_action( 'init', 'gutenberg_register_remote_block_patterns', 11 );

lib/load.php

@@ -108,6 +108,7 @@ function gutenberg_is_experiment_enabled( $name ) {
 require __DIR__ . '/full-site-editing/edit-site-page.php';
 require __DIR__ . '/full-site-editing/edit-site-export.php';
 
+require __DIR__ . '/block-patterns.php';
 require __DIR__ . '/blocks.php';
 require __DIR__ . '/client-assets.php';
 require __DIR__ . '/demo.php';