class.ilSolutionExplorer.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

/*
* Solution Explorer for question pools
*
* @author Helmut Schottmüller <helmut.schottmueller@mac.com>
* @version $Id$
*
* @ingroup ModulesTestQuestionPool
*/

include_once "./Services/UIComponent/Explorer/classes/class.ilExplorer.php";
include_once "./Modules/Test/classes/inc.AssessmentConstants.php";

class ilSolutionExplorer extends ilExplorer
{

        var $root_id;
        var $output;
        var $ctrl;

        var $selectable_type;
        var $ref_id;
        var $target_class;

        public function __construct($a_target, $a_target_class)
        {
                global $tree,$ilCtrl;

                $this->ctrl = $ilCtrl;
                $this->target_class = $a_target_class;
                parent::__construct($a_target);
                $this->tree = $tree;
                $this->root_id = $this->tree->readRootId();
                $this->order_column = "title";

                $this->setSessionExpandVariable("expand_sol");

                // add here all container objects
                $this->addFilter("root");
                $this->addFilter("cat");
                $this->addFilter("grp");
                $this->addFilter("fold");
                $this->addFilter("crs");

                $this->setFilterMode(IL_FM_POSITIVE);
                $this->setFiltered(true);
        }

        public function expandPathByRefId($ref_id)
        {
                global $tree;

                if(!$_SESSION[$this->expand_variable])
                {
                        $_SESSION[$this->expand_variable] = array();
                }

                $path = $tree->getPathId($ref_id);
                foreach((array)$path as $node_id)
                {
                        if(!in_array($node_id, $_SESSION[$this->expand_variable]))
                                $_SESSION[$this->expand_variable][] = $node_id;
                }

                $this->expanded = $_SESSION[$this->expand_variable];
        }

        function setSelectableType($a_type)
        {
                $this->selectable_type  = $a_type;
        }
        function setRefId($a_ref_id)
        {
                $this->ref_id = $a_ref_id;
        }
        

        function buildLinkTarget($a_node_id, $a_type)
        {
                if($a_type == $this->selectable_type)
                {
                        $this->ctrl->setParameterByClass($this->target_class,'source_id',$a_node_id);
                        return $this->ctrl->getLinkTargetByClass($this->target_class,'linkChilds');
                }
                else
                {
                        $this->ctrl->setParameterByClass($this->target_class,"ref_id",$this->ref_id);
                        return $this->ctrl->getLinkTargetByClass($this->target_class,'addSolutionHint');
                }

        }

        function buildFrameTarget($a_type, $a_child = 0, $a_obj_id = 0)
        {
                return '';
        }

        function isClickable($a_type, $a_ref_id = 0)
        {
                return $a_type == $this->selectable_type and $a_ref_id != $this->ref_id;
        }

        function showChilds($a_ref_id)
        {
                global $rbacsystem;

                if ($a_ref_id == 0)
                {
                        return true;
                }

                if ($rbacsystem->checkAccess("read", $a_ref_id))
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }
        
} // END class ilSolutionExplorer