Added a simple system for treeViews.

src/Services/ToolsTreeBuilder.php

@@ -0,0 +1,57 @@
+<?php
+/**
+ * part-db version 0.1
+ * Copyright (C) 2005 Christoph Lechner
+ * http://www.cl-projects.de/.
+ *
+ * part-db version 0.2+
+ * Copyright (C) 2009 K. Jacobs and others (see authors.php)
+ * http://code.google.com/p/part-db/
+ *
+ * Part-DB Version 0.4+
+ * Copyright (C) 2016 - 2019 Jan Böhmer
+ * https://github.com/jbtronics
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+namespace App\Services;
+
+use App\Helpers\TreeViewNode;
+
+/**
+ * This Service generates the tree structure for the tools.
+ * @package App\Services
+ */
+class ToolsTreeBuilder
+{
+
+    /**
+     * Generates the tree for the tools menu.
+     * @return TreeViewNode The array containing all Nodes for the tools menu.
+     */
+    public function getTree() : array
+    {
+        //TODO: Use proper values
+
+        $nodes = array();
+        $nodes[] = new TreeViewNode('Node 1');
+        $nodes[] = new TreeViewNode('Node 2');
+
+        $tree[] = new TreeViewNode('test', 'www.google.de', $nodes);
+
+        return $tree;
+    }
+}