upgrade

vendor/sonata-project/admin-bundle/Admin/AdminTreeInterface.php

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+<?php
+
+/*
+ * This file is part of the Sonata Project package.
+ *
+ * (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Sonata\AdminBundle\Admin;
+
+/**
+ * @author Jules Lamur <contact@juleslamur.fr>
+ */
+interface AdminTreeInterface
+{
+    /**
+     * Returns the root ancestor or itself if not a child.
+     *
+     * @return AdminInterface
+     */
+    public function getRootAncestor();
+
+    /**
+     * Returns the depth of the admin.
+     * e.g. 0 if not a child; 2 if child of a child; etc...
+     *
+     * @return int
+     */
+    public function getChildDepth();
+
+    /**
+     * Returns the current leaf child admin instance,
+     * or null if there's no current child.
+     *
+     * @return AdminInterface|null
+     */
+    public function getCurrentLeafChildAdmin();
+}