From b56e728f4928cd48699ac25f1bacdda78720d326 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20=C3=96sterreicher?= <oesi@technikum-wien.at>
Date: Mon, 9 Apr 2018 07:42:23 +0200
Subject: [PATCH] Extensions can now extend the standard Navigation

---
 application/controllers/system/Navigation.php | 48 +++++++++++++++++--
 1 file changed, 43 insertions(+), 5 deletions(-)

diff --git a/application/controllers/system/Navigation.php b/application/controllers/system/Navigation.php
index 037a7d0f4..9e16580b0 100644
--- a/application/controllers/system/Navigation.php
+++ b/application/controllers/system/Navigation.php
@@ -13,14 +13,15 @@ class Navigation extends VileSci_Controller
 	 *
 	 */
 	public function __construct()
-    {
-        parent::__construct();
+	{
+		parent::__construct();
 
 		$this->config->load('navigation');
 
-        // Load session library
-        $this->load->library('session');
-    }
+		// Load session library
+		$this->load->library('session');
+		$this->load->library('ExtensionsLib');
+	}
 
 	/**
 	 *
@@ -34,6 +35,24 @@ class Navigation extends VileSci_Controller
 		{
 			$navigationMenuArray = $this->config->item('navigation_menu');
 
+			// Load Menu Entries of Extensions
+			$extensions = $this->extensionslib->getInstalledExtensions();
+			if(hasData($extensions))
+			{
+				foreach($extensions->retval as $ext)
+				{
+					$filename = APPPATH.'config/'.ExtensionsLib::EXTENSIONS_DIR_NAME.'/'.$ext->name.'/navigation.php';
+					if (file_exists($filename))
+					{
+						unset($config);
+						include($filename);
+						if(isset($config['navigation_menu']) && is_array($config['navigation_menu']))
+						{
+							$navigationMenuArray = array_merge_recursive($navigationMenuArray, $config['navigation_menu']);
+						}
+					}
+				}
+			}
 			if (isset($navigationMenuArray) && is_array($navigationMenuArray))
 			{
 				if (isset($navigationMenuArray[$navigation_widget_called]))
@@ -71,6 +90,25 @@ class Navigation extends VileSci_Controller
 		{
 			$navigationHeaderArray = $this->config->item('navigation_header');
 
+			// Load Header Entries of Extensions
+			$extensions = $this->extensionslib->getInstalledExtensions();
+			if(hasData($extensions))
+			{
+				foreach($extensions->retval as $ext)
+				{
+					$filename = APPPATH.'config/'.ExtensionsLib::EXTENSIONS_DIR_NAME.'/'.$ext->name.'/navigation.php';
+					if (file_exists($filename))
+					{
+						unset($config);
+						include($filename);
+						if(isset($config['navigation_header']) && is_array($config['navigation_header']))
+						{
+							$navigationHeaderArray = array_merge_recursive($navigationHeaderArray, $config['navigation_header']);
+						}
+					}
+				}
+			}
+
 			if (isset($navigationHeaderArray) && is_array($navigationHeaderArray))
 			{
 				if (isset($navigationHeaderArray[$navigation_widget_called]))