+ zin: add the mailto widget.

lib/zin/func.php

@@ -1831,3 +1831,11 @@ function users(): users
 {
     return createWg('users', func_get_args());
 }
+
+/**
+ * Mailto widget.
+ */
+function mailto(): mailto
+{
+    return createWg('mailto', func_get_args());
+}

lib/zin/wg/mailto/v1.php

@@ -0,0 +1,21 @@
+<?php
+declare(strict_types=1);
+/**
+ * The mailto widget class file of zin module of ZenTaoPMS.
+ *
+ * @copyright   Copyright 2009-2023 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.zentao.net)
+ * @license     ZPL(https://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ * @author      Gang Liu <liugang@easycorp.ltd>
+ * @package     zin
+ * @link        http://www.zentao.net
+ */
+namespace zin;
+
+requireWg('users');
+
+class mailto extends users
+{
+    protected static array $defaultProps = array(
+        'name' => 'mailto[]'
+    );
+}