WP_Theme::get_block_patterns(): array

1856	public function get_block_patterns() {1857		$can_use_cached = ! wp_is_development_mode( 'theme' );1858 1859		$pattern_data = $this->get_pattern_cache();1860		if ( is_array( $pattern_data ) ) {1861			if ( $can_use_cached ) {1862				return $pattern_data;1863			}1864			// If in development mode, clear pattern cache.1865			$this->delete_pattern_cache();1866		}1867 1868		$dirpath      = $this->get_stylesheet_directory() . '/patterns';1869		$pattern_data = array();1870 1871		if ( ! file_exists( $dirpath ) ) {1872			if ( $can_use_cached ) {1873				$this->set_pattern_cache( $pattern_data );1874			}1875			return $pattern_data;1876		}1877 1878		$files = (array) self::scandir( $dirpath, 'php', -1 );1879 1880		/**1881		 * Filters list of block pattern files for a theme.1882		 *1883		 * @since 6.8.01884		 *1885		 * @param array  $files   Array of theme files found within `patterns` directory.1886		 * @param string $dirpath Path of theme `patterns` directory being scanned.1887		 */1888		$files = apply_filters( 'theme_block_pattern_files', $files, $dirpath );1889 1890		$dirpath = trailingslashit( $dirpath );1891 1892		if ( ! $files ) {1893			if ( $can_use_cached ) {1894				$this->set_pattern_cache( $pattern_data );1895			}1896			return $pattern_data;1897		}1898 1899		$default_headers = array(1900			'title'         => 'Title',1901			'slug'          => 'Slug',1902			'description'   => 'Description',1903			'viewportWidth' => 'Viewport Width',1904			'inserter'      => 'Inserter',1905			'categories'    => 'Categories',1906			'keywords'      => 'Keywords',1907			'blockTypes'    => 'Block Types',1908			'postTypes'     => 'Post Types',1909			'templateTypes' => 'Template Types',1910		);1911 1912		$properties_to_parse = array(1913			'categories',1914			'keywords',1915			'blockTypes',1916			'postTypes',1917			'templateTypes',1918		);1919 1920		foreach ( $files as $file ) {1921			$pattern = get_file_data( $file, $default_headers );1922 1923			if ( empty( $pattern['slug'] ) ) {1924				_doing_it_wrong(1925					__FUNCTION__,1926					sprintf(1927						/* translators: 1: file name. */1928						__( 'Could not register file "%s" as a block pattern ("Slug" field missing)' ),1929						$file1930					),1931					'6.0.0'1932				);1933				continue;1934			}1935