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<?php
declare(strict_types=1);
namespace WP_Rocket\Engine\Optimization\DeferJS;
use WP_Rocket\Event_Management\Subscriber_Interface;
class AdminSubscriber implements Subscriber_Interface {
/**
* DeferJS instance
*
* @var DeferJS
*/
private $defer_js;
/**
* Instantiate the class
*
* @param DeferJS $defer_js DeferJS instance.
*/
public function __construct( DeferJS $defer_js ) {
$this->defer_js = $defer_js;
}
/**
* Returns array of events this listen to.
*
* @return array
*/
public static function get_subscribed_events() : array {
return [
'rocket_first_install_options' => 'add_defer_js_option',
'wp_rocket_upgrade' => [ 'exclude_jquery_defer', 14, 2 ],
];
}
/**
* Adds defer js option to WP Rocket options array
*
* @since 3.8
*
* @param array $options WP Rocket options array.
* @return array
*/
public function add_defer_js_option( array $options ) : array {
return $this->defer_js->add_option( $options );
}
/**
* Adds jQuery to defer JS exclusion field if safe mode was enabled before 3.8
*
* @since 3.8
*
* @param string $new_version New plugin version.
* @param string $old_version Previous plugin version.
*
* @return void
*/
public function exclude_jquery_defer( $new_version, $old_version ) {
if ( version_compare( $old_version, '3.8', '>' ) ) {
return;
}
$this->defer_js->exclude_jquery_upgrade();
}
}
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