Merge branch 'trunk' into feat/post-subtitle

functions.php

@@ -22,4 +22,5 @@
 // Include theme resources.
 require_once NEWSPACK_BLOCK_THEME_FILE_PATH . '/includes/class-core.php';
 require_once NEWSPACK_BLOCK_THEME_FILE_PATH . '/includes/blocks/class-blocks.php';
+require_once NEWSPACK_BLOCK_THEME_FILE_PATH . '/includes/class-patterns.php';
 require_once NEWSPACK_BLOCK_THEME_FILE_PATH . '/includes/class-jetpack.php';

includes/class-patterns.php

@@ -0,0 +1,97 @@
+<?php
+/**
+ * Newspack Block Theme patterns handling.
+ *
+ * @package Newspack_Block_Theme
+ */
+
+namespace Newspack_Block_Theme;
+
+defined( 'ABSPATH' ) || exit;
+
+/**
+ * Main Patterns class.
+ */
+final class Patterns {
+	/**
+	 * Initializer.
+	 */
+	public static function init() {
+		\add_action( 'init', [ __CLASS__, 'register_nested_patterns' ] );
+	}
+
+	/**
+	 * Find nested PHP files.
+	 *
+	 * @param string $directory The base directory to search in.
+	 */
+	public static function find_nested_php_files( $directory ) {
+		$php_files = [];
+		$items = glob( $directory . '/*' );
+
+		foreach ( $items as $item ) {
+			if ( is_dir( $item ) ) {
+				$php_files = array_merge( $php_files, self::find_nested_php_files( $item ) );
+			} elseif ( is_file( $item ) && pathinfo( $item, PATHINFO_EXTENSION ) === 'php' ) {
+				$php_files[] = $item;
+			}
+		}
+
+		return $php_files;
+	}
+
+	/**
+	 * Registers patterns nested in the /patterns directory. WP will only
+	 * register automatically the patterns which are top-level files in this directory.
+	 *
+	 * @see get_block_patterns
+	 */
+	public static function register_nested_patterns() {
+		$directory = get_stylesheet_directory() . '/patterns';
+		$files = self::find_nested_php_files( $directory );
+
+		foreach ( $files as $file ) {
+			$relative_path = str_replace( $directory, '', $file );
+			// Check if the path is nested. Non-nested patterns will be automatically registered by WP.
+			if ( substr_count( $relative_path, '/' ) === 1 ) {
+				continue;
+			}
+			$default_headers = [
+				'title'         => 'Title',
+				'slug'          => 'Slug',
+				'description'   => 'Description',
+				'viewportWidth' => 'Viewport Width',
+				'inserter'      => 'Inserter',
+				'categories'    => 'Categories',
+				'keywords'      => 'Keywords',
+				'blockTypes'    => 'Block Types',
+				'postTypes'     => 'Post Types',
+				'templateTypes' => 'Template Types',
+			];
+			$pattern = get_file_data( $file, $default_headers );
+
+			if ( isset( $pattern['slug'] ) ) {
+				$properties_to_parse = [
+					'categories',
+					'keywords',
+					'blockTypes',
+					'postTypes',
+					'templateTypes',
+				];
+				// For properties of type array, parse data as comma-separated.
+				foreach ( $properties_to_parse as $property ) {
+					if ( ! empty( $pattern[ $property ] ) ) {
+						$pattern[ $property ] = array_filter( wp_parse_list( (string) $pattern[ $property ] ) );
+					} else {
+						unset( $pattern[ $property ] );
+					}
+				}
+
+				$pattern['filePath'] = $file;
+				register_block_pattern( $pattern['slug'], $pattern );
+			}
+		}
+	}
+}
+
+Patterns::init();