Sindbad~EG File Manager

<?php

/**
 * -------------------------------------------------------------------------
 * GenericObject plugin for GLPI
 * -------------------------------------------------------------------------
 *
 * LICENSE
 *
 * This file is part of GenericObject.
 *
 * GenericObject 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 3 of the License, or
 * (at your option) any later version.
 *
 * GenericObject 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 GenericObject. If not, see <http://www.gnu.org/licenses/>.
 * -------------------------------------------------------------------------
 * @copyright Copyright (C) 2009-2022 by GenericObject plugin team.
 * @license   GPLv3 https://www.gnu.org/licenses/gpl-3.0.html
 * @link      https://github.com/pluginsGLPI/genericobject
 * -------------------------------------------------------------------------
 */

class PluginGenericobjectObject_Item extends CommonDBChild {

   public $dohistory = true;

   // From CommonDBRelation
   static public $itemtype_1 = "PluginGenericobjectObject";
   static public $items_id_1 = 'plugin_genericobject_objects_id';

   static public $itemtype_2 = 'itemtype';
   static public $items_id_2 = 'items_id';

   //Get itemtype name
   static function getTypeName($nb = 0) {
      global $LANG;
      $class    = get_called_class();
      //Datainjection : Don't understand why I need this trick : need to be investigated !
      if (preg_match("/Injection$/i", $class)) {
         $class = str_replace("Injection", "", $class);
      }
      $item     = new $class();
      //Itemtype name can be contained in a specific locale field : try to load it
      PluginGenericobjectType::includeLocales($item->objecttype->fields['name']);
      if (isset($LANG['genericobject'][$class][0])) {
         return $LANG['genericobject'][$class][0];
      } else {
         return $item->objecttype->fields['name'];
      }
   }

   static function canView() {
      return Session::haveRight(self::$itemtype_1, READ);
   }

   static function canCreate() {
      return Session::haveRight(self::$itemtype_1, CREATE);
   }

   /**
    *
    * Enter description here ...
    * @since 2.2.0
    * @param CommonDBTM $item
    */
   static function showItemsForSource(CommonDBTM $item) {

   }

   /**
    *
    * Enter description here ...
    * @since 2.2.0
    * @param CommonDBTM $item
    */
   static function showItemsForTarget(CommonDBTM $item) {

   }

   /**
    *
    * Enter description here ...
    * @since 2.2.0
    */
   static function registerType() {
      Plugin::registerClass(get_called_class(), ['addtabon' => self::getLinkedItemTypes()]);
   }

   static function getLinkedItemTypes() {
      $source_itemtype = self::getItemType1();
      $source_item = new $source_itemtype;
      return $source_item->getLinkedItemTypesAsArray();
   }

   static function getItemType1() {
      $classname   = get_called_class();
      return $classname::$itemtype_1;
   }

   function getTabNameForItem(CommonGLPI $item, $withtemplate = 0) {
      if (!$withtemplate) {
         $itemtypes = self::getLinkedItemTypes();
         if (in_array(get_class($item), $itemtypes) || get_class($item) == self::getItemType1()) {
            return [1 => __("Objects management", "genericobject")];
         }
      }
      return '';
   }

   static function displayTabContentForItem(CommonGLPI $item, $tabnum = 1, $withtemplate = 0) {
      $itemtypes = self::getLinkedItemTypes();
      if (get_class($item) == self::getItemType1()) {
         self::showItemsForSource($item);
      } else if (in_array(get_class($item), $itemtypes)) {
         self::showItemsForTarget($item);
      }
      return true;
   }

}