ru-se.com

Unnamed repository; edit this file 'description' to name the repository.
Log | Files | Refs

class-twentytwenty-script-loader.php (1313B)

      1 <?php
      2 /**
      3  * Javascript Loader Class
      4  *
      5  * Allow `async` and `defer` while enqueuing Javascript.
      6  *
      7  * Based on a solution in WP Rig.
      8  *
      9  * @package WordPress
     10  * @subpackage Twenty_Twenty
     11  * @since Twenty Twenty 1.0
     12  */
     13 
     14 if ( ! class_exists( 'TwentyTwenty_Script_Loader' ) ) {
     15 	/**
     16 	 * A class that provides a way to add `async` or `defer` attributes to scripts.
     17 	 *
     18 	 * @since Twenty Twenty 1.0
     19 	 */
     20 	class TwentyTwenty_Script_Loader {
     21 
     22 		/**
     23 		 * Adds async/defer attributes to enqueued / registered scripts.
     24 		 *
     25 		 * If #12009 lands in WordPress, this function can no-op since it would be handled in core.
     26 		 *
     27 		 * @since Twenty Twenty 1.0
     28 		 *
     29 		 * @link https://core.trac.wordpress.org/ticket/12009
     30 		 *
     31 		 * @param string $tag    The script tag.
     32 		 * @param string $handle The script handle.
     33 		 * @return string Script HTML string.
     34 		 */
     35 		public function filter_script_loader_tag( $tag, $handle ) {
     36 			foreach ( array( 'async', 'defer' ) as $attr ) {
     37 				if ( ! wp_scripts()->get_data( $handle, $attr ) ) {
     38 					continue;
     39 				}
     40 				// Prevent adding attribute when already added in #12009.
     41 				if ( ! preg_match( ":\s$attr(=|>|\s):", $tag ) ) {
     42 					$tag = preg_replace( ':(?=></script>):', " $attr", $tag, 1 );
     43 				}
     44 				// Only allow async or defer, not both.
     45 				break;
     46 			}
     47 			return $tag;
     48 		}
     49 
     50 	}
     51 }