class-move-to-trash.php

<?php
/**
 * Offload "Move to Trash"
 *
 * @package Bulk_Edit_Cron_Offload
 */

namespace Automattic\WP\Bulk_Edit_Cron_Offload;

/**
 * Class Move_To_Trash
 */
class Move_To_Trash {
	/**
	 * Class constants
	 */
	const ADMIN_NOTICE_KEY = 'bulk_edit_cron_offload_move_to_trash';

	/**
	 * Register this bulk process' hooks
	 */
	public static function register_hooks() {
		add_action( Main::build_hook( 'trash' ), array( __CLASS__, 'process' ) );
		add_action( Main::build_cron_hook( 'trash' ), array( __CLASS__, 'process_via_cron' ) );

		add_action( 'admin_notices', array( __CLASS__, 'admin_notices' ) );
		add_filter( 'posts_where', array( __CLASS__, 'hide_posts_pending_move' ), 999, 2 );
	}

	/**
	 * Handle a request to move some posts to the trash
	 *
	 * @param object $vars Bulk-request variables.
	 */
	public static function process( $vars ) {
		$action_scheduled = Main::next_scheduled( $vars );

		if ( empty( $action_scheduled ) ) {
			Main::schedule_processing( $vars );
			Main::do_admin_redirect( self::ADMIN_NOTICE_KEY, true );
		} else {
			Main::do_admin_redirect( self::ADMIN_NOTICE_KEY, false );
		}
	}

	/**
	 * Cron callback to move requested items to trash
	 *
	 * @param object $vars Bulk-request variables.
	 */
	public static function process_via_cron( $vars ) {
		$count = 0;

		if ( is_array( $vars->posts ) && ! empty( $vars->posts ) ) {
			require_once ABSPATH . '/wp-admin/includes/post.php';

			$trashed    = array();
			$locked     = array();
			$auth_error = array();
			$error      = array();

			foreach ( $vars->posts as $post_id ) {
				// Can the user trash this post?
				if ( ! user_can( $vars->user_id, 'delete_post', $post_id ) ) {
					$auth_error[] = $post_id;
					continue;
				}

				// Post is locked by someone, so leave it alone.
				if ( false !== wp_check_post_lock( $post_id ) ) {