class.ilSCORMExplorer.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 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. |
        +-----------------------------------------------------------------------------+
*/

require_once("./Services/UIComponent/Explorer/classes/class.ilExplorer.php");
require_once("./Modules/ScormAicc/classes/SCORM/class.ilSCORMTree.php");

class ilSCORMExplorer extends ilExplorer
{

        var $slm_obj;

        function __construct($a_target, &$a_slm_obj)
        {
                parent::__construct($a_target);
                $this->slm_obj = $a_slm_obj;
                $this->tree = new ilSCORMTree($a_slm_obj->getId());
                $this->root_id = $this->tree->readRootId();
                $this->checkPermissions(false);
                $this->outputIcons(true);
                $this->setOrderColumn("");
        }
        
        function getItem($a_node_id) {
                return new ilSCORMItem($a_node_id);
        }
        
        function getIconImagePathPrefix() {
                return "scorm/";
        }
        
        function getNodesToSkip() {
                return 2;
        }
        

        function formatHeader($a_obj_id,$a_option)
        {
                global $lng, $ilias;

                $tpl = new ilTemplate("tpl.tree.html", true, true, "Services/UIComponent/Explorer");

                $tpl->setCurrentBlock("row");
                $tpl->setVariable("TITLE", $lng->txt("cont_manifest"));
                $tpl->setVariable("LINK_TARGET", $this->target."&".$this->target_get."=".$a_obj_id);
                $tpl->setVariable("TARGET", " target=\"".$this->frame_target."\"");
                $tpl->parseCurrentBlock();

                $this->output[] = $tpl->get();
        }

        function createTarget($a_type,$a_child)
        {
                // SET expand parameter:
                //     positive if object is expanded
                //     negative if object is compressed
                $a_child = ($a_type == '+')
                        ? $a_child
                        : -(int) $a_child;

                return $_SERVER["PATH_INFO"]."?cmd=explorer&ref_id=".$this->slm_obj->getRefId()."&scexpand=".$a_child;
        }

        public function setOutput($parent_id) {
                $this->format_options = $this->createOutputArray($parent_id);
        }

        protected function createOutputArray($a_parent_id, $options = array()) {
                $types_do_not_display = array("sos", "sma");
                $types_do_not_load = array("srs");

                if (!isset($a_parent_id))
                        {
                                $this->ilias->raiseError(get_class($this)."::setOutput(): No node_id given!",$this->ilias->error_obj->WARNING);
                        }

                        if (!$this->showChilds($a_parent_id))
                        {
                                return array();
                        }

                        foreach ($this->tree->getChilds($a_parent_id, $this->order_column) as $key => $child) {
                                if(in_array($child["c_type"], $types_do_not_load)) {
                                        continue;
                                }

                                $option = array();
                                $option["parent"]               = $child["parent"];
                                $option["id"]                   = $child["child"];
                                $option["title"]                = $child["title"];
                                $option["c_type"]               = $child["c_type"];
                                $option["obj_id"]               = $child["obj_id"];
                                $option["desc"]                 = "obj_".$child["c_type"];
                                $option["container"]    = false;
                                $option["visible"]              = !in_array($child["c_type"], $types_do_not_display);

                                if($this->showChilds($option["id"])) {
                                        $option = $this->createOutputArray($option["id"], $option, ++$depth);
                                }

                                $options["childs"][] = $option;
                        }

                        return $options;
        }

        function isVisible($a_id, $a_type)
        {
                if ($a_type == "sre")
                {
                        return false;
                }
                else
                {
                        return true;
                }
        }

        function getOutput($jsApi = false)
        {
                $output = $this->createOutput($this->format_options, $jsApi);

                return $output->get();
        }

        function createOutput($option, $jsApi) {
                global $ilBench;

                if ($option["visible"]) {
                        $tpl = new ilTemplate("tpl.sahs_tree_ul.html", true, true, "Modules/ScormAicc");
                        $tpl = $this->insertObject($option, $tpl, $jsApi);
                } else {
                        $tpl = new ilTemplate("tpl.sahs_tree_free.html", true, true, "Modules/ScormAicc");
                }

                if (count($option["childs"])) {
                        foreach ($option["childs"] as $key => $ch_option) {
                                $tpl->setCurrentBlock("childs");
                                $tpl->setVariable("CHILDS", $this->createOutput($ch_option, $jsApi)->get());
                                $tpl->parseCurrentBlock();
                        }
                }

                return $tpl;
        }

        function isClickable($a_type, $a_id = 0, $a_obj = 0)
        {
                if ($a_type != "sit")
                {
                        return false;
                }
                else
                {
                        if (is_object($a_obj))
                        {
                                $sc_object = $a_obj;
                        }
                        else
                        {
                                $sc_object = new ilSCORMItem($a_id);
                        }
                        if ($sc_object->getIdentifierRef() != "")
                        {
                                return true;
                        }
                }
                return false;
        }

        protected function insertObject($option, ilTemplate $tpl, $jsApi) {
                if (!is_array($option) || !isset($option["id"])) {
                        $this->ilias->raiseError(get_class($this)."::insertObject(): Missing parameter or wrong datatype! ".
                                                                        "node_id: ".$a_node_id." options:".var_dump($a_option),$this->ilias->error_obj->WARNING);
                }

                //get scorm item
                $sc_object =& new ilSCORMItem($option["id"]);
                $id_ref = $sc_object->getIdentifierRef();

                //get scorm resource ref id
                $sc_res_id = ilSCORMResource::_lookupIdByIdRef($id_ref, $sc_object->getSLMId());

                //get scorm type
                $scormtype = strtolower(ilSCORMResource::_lookupScormType($sc_res_id));

                //is scorm clickabke
                $clickable = $this->isClickable($option["c_type"], $option["id"], $sc_object);

                if ($this->output_icons && $clickable) {
                        $this->getOutputIcons($tpl, $option, $option["id"], $scormtype);
                }

                if ($clickable) // output link
                {
                        $tpl->setCurrentBlock("link");
                        $frame_target = $this->buildFrameTarget($option["c_type"], $option["id"], $option["obj_id"]);
                        if ($frame_target != "")
                        {
                                $tpl->setVariable("TITLE", ilUtil::shortenText($option["title"], $this->textwidth, true));
                                $tpl->setVariable("LINK_TARGET", "javascript:void(0);");
                                if ($jsApi == true) {
                                        $tpl->setVariable("ONCLICK", " onclick=\"parent.API.IliasLaunch('".$option["id"]."');return false;\"");
                                } else {
                                        $tpl->setVariable("ONCLICK", " onclick=\"parent.APIFRAME.setupApi();parent.APIFRAME.API."
                                                .($scormtype == 'asset' ? 'IliasLaunchAsset' : 'IliasLaunchSahs')
                                                ."('".$option["id"]."');return false;\"");
                                }
                        }
                        $tpl->parseCurrentBlock();
                }
                else                    // output text only
                {
                        $tpl->setCurrentBlock("text");
                        $tpl->setVariable("OBJ_TITLE", ilUtil::shortenText($option["title"], $this->textwidth, true));
                        $tpl->parseCurrentBlock();
                }

                $tpl->setCurrentBlock("li");
                $tpl->parseCurrentBlock();

                return $tpl;
        }

        function getOutputIcons(&$tpl, $a_option, $a_node_id, $scormtype="sco")
        {
                global $lng;

                        $tpl->setCurrentBlock("icon");

                        if ($scormtype == 'asset') 
                        {
                                $tpl->setVariable('ICON_IMAGE', ilUtil::getImagePath($this->getIconImagePathPrefix()."asset.svg"));
                                $tpl->setVariable('TXT_ALT_IMG', '');
                                $tpl->parseCurrentBlock();
                                return;
                        }

                        $trdata = ilSCORMItem::_lookupTrackingDataOfUser($a_node_id, 0,
                                $this->slm_obj->getId());

                        // status
                        $status = ($trdata["cmi.core.lesson_status"] == "")
                                ? "not attempted"
                                : $trdata["cmi.core.lesson_status"];

                        $statusChar=strtolower(substr($status,0,1));
                        if ($statusChar=="f")
                                $status="failed";
                        else if ($statusChar=="b")
                                $status="browsed";
                        else if ($statusChar=="c")
                                $status="completed";
                        else if ($statusChar=="n")
                                $status="not_attempted";
                        else if ($statusChar=="p")
                                $status="passed";
                        else if ($statusChar=="r")
                                $status="running";
                        
                        $alt = $lng->txt("cont_status").": ".
                                $lng->txt("cont_sc_stat_".str_replace(" ", "_", $status));

                        // score
                        if ($trdata["cmi.core.score.raw"] != "")
                        {
                                $alt.= ", ".$lng->txt("cont_credits").
                                ": ".$trdata["cmi.core.score.raw"];
                        }

                        // total time
                        if ($trdata["cmi.core.total_time"] != "" &&
                                $trdata["cmi.core.total_time"] != "0000:00:00.00")
                        {
                                $alt.= ", ".$lng->txt("cont_total_time").
                                ": ".$trdata["cmi.core.total_time"];
                        }

                        $tpl->setVariable("ICON_NAME", 'scoIcon'.$a_node_id);
                        $tpl->setVariable("ICON_IMAGE", ilUtil::getImagePath($this->getIconImagePathPrefix().str_replace(" ", "_", $status).".svg"));
                        $tpl->setVariable("TXT_ALT_IMG", $alt);
                        $tpl->parseCurrentBlock();

        }
}
?>