class.ilLMExplorer.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

/*
* Explorer View for Learning Modules
*
* @author Alex Killing <alex.killing@gmx.de>
* @version $Id$
*
* @ingroup ModulesIliasLearningModule
*/

require_once("./Services/UIComponent/Explorer/classes/class.ilExplorer.php");

class ilLMExplorer extends ilExplorer
{

        var $root_id;
        var $lm_obj;
        var $output;

        function ilLMExplorer($a_target,&$a_lm_obj)
        {
                parent::ilExplorer($a_target);
                $this->tree = new ilTree($a_lm_obj->getId());
                $this->tree->setTableNames('lm_tree','lm_data');
                $this->tree->setTreeTablePK("lm_id");
                $this->root_id = $this->tree->readRootId();
                $this->lm_obj =& $a_lm_obj;
                $this->order_column = "";
                $this->setSessionExpandVariable("lmexpand");
                $this->checkPermissions(false);
                $this->setPostSort(false);
                $this->textwidth = 200;
        }

        function formatHeader(&$tpl, $a_obj_id,$a_option)
        {
                global $lng, $ilias;
                
                $tpl->setCurrentBlock("icon");
                $tpl->setVariable("ICON_IMAGE" , ilUtil::getImagePath("icon_lm_s.png",false, "output", $this->offlineMode()));
                $tpl->setVariable("TXT_ALT_IMG", $lng->txt("obj_".$this->lm_obj->getType()));
                $tpl->parseCurrentBlock();

                $tpl->setCurrentBlock("link");
                $tpl->setVariable("TITLE", ilUtil::shortenText($this->lm_obj->getTitle(), $this->textwidth, true));
                $tpl->setVariable("LINK_TARGET", $this->buildLinkTarget("",""));
                $tpl->setVariable("TARGET", " target=\"".$this->frame_target."\"");
                $tpl->parseCurrentBlock();
                
                $tpl->touchBlock("element");
        }

        function isClickable($a_type, $a_obj_id = 0)
        {
                global $ilUser;
                // in this standard implementation
                // only the type determines, wether an object should be clickable or not
                // but this method can be overwritten and make use of the ref id
                // (this happens e.g. in class ilRepositoryExplorerGUI)
                if ($this->is_clickable[$a_type] == "n")
                {
                        return false;
                }

                // check public access
                include_once 'Services/Payment/classes/class.ilPaymentObject.php';
                if (($ilUser->getId() == ANONYMOUS_USER_ID || 
                        ilPaymentObject::_requiresPurchaseToAccess((int)$this->lm_obj->getRefId())) &&
                    !ilLMObject::_isPagePublic($a_obj_id, true))
                {
                        return false;
                }
        
                return true;
        }
} // END class ilLMExplorer
?>