1 files changed, 115 insertions, 0 deletions
diff --git a/phpBB/phpbb/install/helper/navigation/navigation_provider.php b/phpBB/phpbb/install/helper/navigation/navigation_provider.php
new file mode 100644
index 0000000000..1f58cbea83
--- /dev/null
+++ b/phpBB/phpbb/install/helper/navigation/navigation_provider.php
@@ -0,0 +1,115 @@
+<?php
+/**
+ *
+ * This file is part of the phpBB Forum Software package.
+ *
+ * @copyright (c) phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ * For full copyright and license information, please see
+ * the docs/CREDITS.txt file.
+ *
+ */
+
+namespace phpbb\install\helper\navigation;
+
+use phpbb\di\service_collection;
+
+/**
+ * Installers navigation provider
+ */
+class navigation_provider
+{
+	/**
+	 * @var array
+	 */
+	private $menu_collection;
+
+	/**
+	 * Constructor
+	 *
+	 * @param service_collection		$plugins
+	 */
+	public function __construct(service_collection $plugins)
+	{
+		$this->menu_collection	= array();
+
+		foreach ($plugins as $plugin => $plugin_instance)
+		{
+			$this->register($plugin_instance);
+		}
+	}
+
+	/**
+	 * Returns navigation array
+	 *
+	 * @return array
+	 */
+	public function get()
+	{
+		return $this->menu_collection;
+	}
+
+	/**
+	 * Registers a navigation provider's navigation items
+	 *
+	 * @param navigation_interface	$navigation
+	 */
+	public function register(navigation_interface $navigation)
+	{
+		$nav_arry = $navigation->get();
+		$this->merge($nav_arry, $this->menu_collection);
+	}
+
+	/**
+	 * Set a property in the navigation array
+	 *
+	 * @param array	$nav_element	Array to the navigation elem
+	 * @param array	$property_array	Array with the properties to set
+	 */
+	public function set_nav_property($nav_element, $property_array)
+	{
+		$array_pointer = array();
+		$array_root_pointer = &$array_pointer;
+		foreach ($nav_element as $array_path)
+		{
+			$array_pointer[$array_path] = array();
+			$array_pointer = &$array_pointer[$array_path];
+		}
+
+		$array_pointer = $property_array;
+
+		$this->merge($array_root_pointer, $this->menu_collection);
+	}
+
+	/**
+	 * Recursive array merge
+	 *
+	 * This function is necessary to be able to replace the options of
+	 * already set navigation items.
+	 *
+	 * @param array	$array_to_merge
+	 * @param array	$array_to_merge_into
+	 */
+	private function merge(&$array_to_merge, &$array_to_merge_into)
+	{
+		foreach ($array_to_merge as $key => $value)
+		{
+			if (isset($array_to_merge_into[$key]))
+			{
+				if (is_array($array_to_merge_into[$key]) && is_array($value))
+				{
+					$this->merge($value, $array_to_merge_into[$key]);
+				}
+				else
+				{
+					$array_to_merge_into[$key] = $value;
+				}
+			}
+			else
+			{
+				$array_to_merge_into[$key] = $value;
+			}
+		}
+	}
+}