<?php
/*
	+-----------------------------------------------------------------------------+
	| ILIAS open source                                                           |
	+-----------------------------------------------------------------------------+
	| Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
	|                                                                             |
	| 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
	+-----------------------------------------------------------------------------+
*/

/**
* Content Object Locator GUI
*
*
* @author Alex Killing <alex.killing@gmx.de>
* @version $Id: class.ilContObjLocatorGUI.php,v 1.4 2006/07/30 14:11:35 akill Exp $
*
* @ingroup ModulesIliasLearningModule
*/
class ilContObjLocatorGUI
{
	var $mode;
	var $temp_var;
	var $tree;
	var $lng;
	var $tpl;


	function ilContObjLocatorGUI($a_tree)
	{
		global $lng, $tpl, $ilCtrl;

		$this->ctrl =& $ilCtrl;
		$this->tree =& $a_tree;
		$this->mode = "std";
		$this->temp_var = "LOCATOR";
		$this->lng =& $lng;
		$this->tpl =& $tpl;
		$this->show_user = false;
	}

	function setTemplateVariable($a_temp_var)
	{
		$this->temp_var = $a_temp_var;
	}

	function setObjectID($a_obj_id)
	{
		$this->obj_id = $a_obj_id;
	}

	function setContentObject($a_cont_obj)
	{
		$this->cont_obj =& $a_cont_obj;
	}

	/**
	* display locator
	*/
	function display($a_gui_class)
	{
		global $lng;

		$this->tpl->addBlockFile($this->temp_var, "locator", "tpl.locator.html");

		if (($this->obj_id != 0) && $this->tree->isInTree($this->obj_id))
		{
			$path = $this->tree->getPathFull($this->obj_id);
		}
		else
		{
			$path = $this->tree->getPathFull($this->tree->getRootId());
			if ($this->obj_id != 0)
			{
				$path[] = array("type" => "pg", "child" => $this->obj_id,
					"title" => ilLMPageObject::_getPresentationTitle($this->obj_id));
			}
		}

		$modifier = 1;

		foreach ($path as $key => $row)
		{
			if ($key < count($path)-$modifier)
			{
				$this->tpl->touchBlock("locator_separator");
			}

			$this->tpl->setCurrentBlock("locator_item");
			$transit = "";
			if ($row["child"] == 1)
			{
				$title = $this->cont_obj->getTitle();
				$cmd = "properties";
				$cmdClass = $a_gui_class;
			}
			else
			{
				$title = $row["title"];
				switch($row["type"])
				{
					case "st":
						$cmdClass = "ilStructureObjectGUI";
						$cmd = "view";
						if ($this->ctrl->getCmdClass() != "ilstructureobjectgui")
						{
							$transit = array($a_gui_class);
						}
						break;

					case "pg":
						$cmdClass = "ilLMPageObjectGUI";
						$cmd = "view";
						if ($this->ctrl->getCmdClass() != "illmpageobjectgui")
						{
							$transit = array($a_gui_class);
						}
						break;
				}
			}
			$this->tpl->setVariable("ITEM", $title);
			$obj_str = ($row["child"] == 1)
				? ""
				: "&obj_id=".$row["child"];

			$this->ctrl->setParameterByClass($cmdClass, "obj_id", $row["child"]);
			$link = $this->ctrl->getLinkTargetByClass($cmdClass, $cmd, $transit);
			$this->ctrl->setParameterByClass($cmdClass, "obj_id", $_GET["obj_id"]);
			$this->tpl->setVariable("LINK_ITEM", $link);
			$this->tpl->parseCurrentBlock();
		}

		$this->tpl->setCurrentBlock("locator");
		$this->tpl->parseCurrentBlock();
	}

}
?>
