AjaxHandler.php

<?php

namespace WPDesk\Notice;

use WPDesk\PluginBuilder\Plugin\HookablePluginDependant;
use WPDesk\PluginBuilder\Plugin\PluginAccess;

/**
 * Class AjaxHandler
 *
 * AjaxHandler for dismissible notices.
 *
 * @package WPDesk\Notice
 */
class AjaxHandler implements HookablePluginDependant {

    use PluginAccess;

    const POST_FIELD_NOTICE_NAME = 'notice_name';
    const POST_FIELD_SOURCE = 'source';
    const POST_FIELD_SECURITY = 'security';

    const SCRIPTS_VERSION = '4';
    const SCRIPT_HANDLE = 'wpdesk_notice';
    const SCRIPT_HANDLE_GUTENBERG = 'wpdesk_notice_gutenberg';

    /**
     * @var string
     */
    private $assetsURL;

    /**
     * AjaxHandler constructor.
     *
     * @param string|null $assetsURL Assets URL.
     */
    public function __construct( $assetsURL = null ) {
        $this->assetsURL = $assetsURL ?? plugins_url('/assets/', dirname(__FILE__, 3));
    }

    /**
     * Hooks.
     */
    public function hooks() {
        add_action( 'admin_enqueue_scripts', [ $this, 'enqueueAdminScripts' ] );
        add_action( 'wp_ajax_wpdesk_notice_dismiss', [ $this, 'processAjaxNoticeDismiss' ] );
    }

    public function isBlockEditor():bool
    {
		if ( !function_exists( 'get_current_screen' ) ) {
			return false;
		}

		$screen = \get_current_screen();

		return is_object($screen) ? $screen->is_block_editor() : false;
    }

    /**
     * Enqueue admin scripts.
     */
    public function enqueueAdminScripts() {
        wp_register_script(
            self::SCRIPT_HANDLE,
            trailingslashit( $this->assetsURL ) . 'js/notice.js',
            [ 'jquery' ],
            self::SCRIPTS_VERSION
        );
        wp_enqueue_script( self::SCRIPT_HANDLE );