Handle scheduling delete request and processing it

includes/class-move-to-trash.php

@@ -21,15 +21,69 @@ class Move_To_Trash {
 	 */
 	public static function register_hooks() {
 		add_action( Main::build_hook( 'trash' ), array( __CLASS__, 'process' ) );
+		add_action( self::CRON_EVENT, array( __CLASS__, 'process_via_cron' ) );
 	}
 
 	/**
-	 * Handle a request to delete all trashed items for a given post type
+	 * Handle a request to move some posts to the trash
 	 *
 	 * @param object $vars Bulk-request variables.
 	 */
 	public static function process( $vars ) {
-		error_log( var_export( $vars, true ) );
+		wp_schedule_single_event( time(), self::CRON_EVENT, array( $vars ) );
+
+		Main::do_admin_redirect( self::ADMIN_NOTICE_KEY, true );
+	}
+
+	/**
+	 * 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 ) ) {
+					$locked[] = $post_id;
+					continue;
+				}
+
+				// Try trashing.
+				$post_trashed = wp_trash_post( $post_id );
+				if ( $post_trashed ) {
+					$trashed[] = $post_id;
+				} else {
+					$error[] = $post_id;
+				}
+
+				// Take a break periodically.
+				if ( 0 === $count++ % 50 ) {
+					stop_the_insanity();
+					sleep( 3 );
+				}
+			}
+
+			$results = compact( 'trashed', 'locked', 'auth_error', 'error' );
+			do_action( 'bulk_edit_cron_offload_move_to_trash_request_completed', $results, $vars );
+		} else {
+			do_action( 'bulk_edit_cron_offload_move_to_trash_request_no_posts', $vars->posts, $vars );
+		}
 	}
 }