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- <?php // $Id: scorm_api.php,v 1.30 2006/09/12 13:42:18 yannoo Exp $
- /*
- ==============================================================================
- Dokeos - elearning and course management software
-
- Copyright (c) 2004 Dokeos S.A.
- Copyright (c) Denes Nagy (darkden@freemail.hu)
-
- For a full list of contributors, see "credits.txt".
- The full license can be read in "license.txt".
-
- 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.
-
- See the GNU General Public License for more details.
-
- Contact: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
- ==============================================================================
- */
- /**
- ==============================================================================
- * API event handler functions for Scorm 1.1 and 1.2 and 1.3
- *
- * @author Denes Nagy <darkden@freemail.hu>
- * @author Yannick Warnier <ywarnier@beeznest.org>
- * @version v 1.0
- * @access public
- * @package dokeos.learnpath
- ==============================================================================
- */
- /**
- * This script is divided into three sections.
- * The first section (below) is the initialisation part.
- * The second section is the SCORM object part
- * The third section defines the event handlers for Dokeos' internal messaging
- * and frames refresh
- */
- /*
- ==============================================================================
- INIT SECTION
- ==============================================================================
- */
- // if you open the imsmanifest.xml via local machine (f.ex.: file://c:/...), then the Apiwrapper.js
- // of Maritime Navigation when trying to execute this row
- // var result = api.LMSInitialize("");
- // get the error response : you are not authorized to call this function
- //flag to allow for anonymous user - needs to be set before global.inc.php
- $use_anonymous = true;
- require_once('back_compat.inc.php');
- require_once('learnpath.class.php');
- require_once('learnpathItem.class.php');
- require_once('scorm.class.php');
- // Is this needed? This is probabaly done in the header file
- //$_user = $_SESSION['_user'];
- $file = $_SESSION['file'];
- $oLP = unserialize($_SESSION['lpobject']);
- $oItem = $oLP->items[$oLP->current];
- if(!is_object($oItem)){
- error_log('New LP - scorm_api - Could not load oItem item',0);
- exit;
- }
- $autocomplete_when_80pct = 0;
- /*
- ==============================================================================
- JavaScript Functions
- ==============================================================================
- */
- ?>var scorm_logs='<?php echo ((empty($oLP->scorm_debug) or !api_is_course_admin())?'0':'3');?>'; //debug log level for SCORM. 0 = none, 1=light, 2=a lot, 3=all - displays logs in log frame
- var lms_logs=0; //debug log level for LMS actions. 0=none, 1=light, 2=a lot, 3=all
- //logit_lms('scormfunctions.php included',0);
- function APIobject() {
- this.LMSInitialize=LMSInitialize; //for Scorm 1.2
- this.Initialize=LMSInitialize; //for Scorm 1.3
- this.LMSGetValue=LMSGetValue;
- this.GetValue=LMSGetValue;
- this.LMSSetValue=LMSSetValue;
- this.SetValue=LMSSetValue;
- this.LMSCommit=LMSCommit;
- this.Commit=LMSCommit;
- this.LMSFinish=LMSFinish;
- this.Finish=LMSFinish;
- this.LMSGetLastError=LMSGetLastError;
- this.GetLastError=LMSGetLastError;
- this.LMSGetErrorString=LMSGetErrorString;
- this.GetErrorString=LMSGetErrorString;
- this.LMSGetDiagnostic=LMSGetDiagnostic;
- this.GetDiagnostic=LMSGetDiagnostic;
- this.Terminate=Terminate; //only in Scorm 1.3
- this.save_asset = dokeos_save_asset;
- this.void_save_asset = dokeos_void_save_asset;
- }
- //it is not sure that the scos use the above declarations
- API = new APIobject(); //for scorm 1.2
- api = API;
- //api = new APIobject(); //for scorm 1.2
- API_1484_11 = new APIobject(); //for scorm 1.3
- api_1484_11 = API_1484_11;
- //api_1484_11 = new APIobject(); //for scorm 1.3
- var G_NoError = 0;
- var G_GeneralException = 101;
- var G_ServerBusy = 102;
- var G_InvalidArgumentError = 201;
- var G_ElementCannotHaveChildren = 202;
- var G_ElementIsNotAnArray = 203;
- var G_NotInitialized = 301;
- var G_NotImplementedError = 401;
- var G_InvalidSetValue = 402;
- var G_ElementIsReadOnly = 403;
- var G_ElementIsWriteOnly = 404;
- var G_IncorrectDataType = 405;
- var G_LastError = G_NoError ;
- var G_LastErrorMessage = 'No error';
- var commit = false ;
- //Strictly scorm variables
- var score=<?php echo $oItem->get_score();?>;
- var max='<?php echo $oItem->get_max();?>';
- var min='<?php echo $oItem->get_min();?>';
- var lesson_status='<?php echo $oItem->get_status();?>';
- var session_time='<?php echo $oItem->get_scorm_time('js');?>';
- var suspend_data = '<?php echo $oItem->get_suspend_data();?>';
- var lesson_location = '<?php echo $oItem->get_lesson_location();?>';
- var total_time = '<?php echo $oItem->get_scorm_time('js');?>';
- var mastery_score = '<?php echo $oItem->get_mastery_score();?>';
- var launch_data = '<?php echo $oItem->get_launch_data();?>';
- var max_time_allowed = '<?php echo $oItem->get_max_time_allowed();?>';
- var interactions = new Array();
- item_objectives = new Array();
- //Dokeos internal variables
- var saved_lesson_status = 'not attempted';
- var lms_lp_id = <?php echo $oLP->get_id();?>;
- var lms_item_id = <?php echo $oItem->get_id();?>;
- //var lms_new_item_id = 0; //temporary value (only there between a load_item() and a LMSInitialize())
- var lms_been_synchronized = 0;
- var lms_initialized = 0;
- var lms_total_lessons = <?php echo $oLP->get_total_items_count(); ?>;
- var lms_complete_lessons = <?php echo $oLP->get_complete_items_count();?>;
- var lms_progress_bar_mode = '<?php echo $oLP->progress_bar_mode;?>';
- if(lms_progress_bar_mode == ''){lms_progress_bar_mode='%';}
- var lms_view_id = '<?php echo $oLP->get_view();?>';
- if(lms_view_id == ''){ lms_view_id = 1;}
- var lms_user_id = '<?php echo $_user['user_id'];?>';
- var lms_next_item = '<?php echo $oLP->get_next_item_id();?>';
- var lms_previous_item = '<?php echo $oLP->get_previous_item_id();?>';
- var lms_lp_type = '<?php echo $oLP->get_type();?>';
- var lms_item_type = '<?php echo $oItem->get_type();?>';
- var lms_item_credit = '<?php echo $oItem->get_credit();?>';
- var lms_item_lesson_mode = '<?php echo $oItem->get_lesson_mode();?>';
- var lms_item_launch_data = '<?php echo $oItem->get_launch_data();?>';
- var lms_item_core_exit = '<?php echo $oItem->get_core_exit();?>';
- var asset_timer = 0;
- //Backup for old values
- var old_score = 0;
- var old_max = 0;
- var old_min = 0;
- var old_lesson_status = '';
- var old_session_time = '';
- var old_suspend_data = '';
- var lms_old_item_id = 0;
- /**
- * Function called mandatorily by the SCORM content to start the SCORM communication
- */
- function LMSInitialize() { //this is the initialize function of all APIobjects
- logit_scorm('LMSInitialise()',0);
- /* load info for this new item by calling the js_api_refresh command in
- * the message frame. The message frame will update the JS variables by
- * itself, in JS, by doing things like top.lesson_status = 'not attempted'
- * and that kind of stuff, so when the content loads in the content frame
- * it will have all the correct variables set
- */
- G_LastError = G_NoError ;
- G_LastErrorMessage = 'No error';
- lms_initialized=1;
- return('true');
- }
- function Initialize() { //this is the initialize function of all APIobjects
- return LMSInitialize();
- }
- function LMSGetValue(param) {
- //logit_scorm("LMSGetValue('"+param+"')",1);
- G_LastError = G_NoError ;
- G_LastErrorMessage = 'No error';
- var result='';
- // ---- cmi.core._children
- if(param=='cmi.core._children' || param=='cmi.core_children'){
- result='entry, exit, lesson_status, student_id, student_name, lesson_location, total_time, credit, lesson_mode, score, session_time';
- }else if(param == 'cmi.core.entry'){
- // ---- cmi.core.entry
- if(lms_item_core_exit=='none')
- {
- result='ab-initio';
- }
- else if(lms_item_core_exit=='suspend')
- {
- result='resume';
- }
- else
- {
- result='';
- }
- }else if(param == 'cmi.core.exit'){
- // ---- cmi.core.exit
- result='';
- G_LastError = G_ElementIsWriteOnly;
- }else if(param == 'cmi.core.lesson_status'){
- // ---- cmi.core.lesson_status
- if(lesson_status != '') {
- result=lesson_status;
- }
- else{
- result='not attempted';
- }
- }else if(param == 'cmi.core.student_id'){
- // ---- cmi.core.student_id
- result='<?php echo $_user['user_id']; ?>';
- }else if(param == 'cmi.core.student_name'){
- // ---- cmi.core.student_name
- <?php
- $who=addslashes($_user['lastName'].", ".$_user['firstName']);
- echo "result='$who';";
- ?>
- }else if(param == 'cmi.core.lesson_location'){
- // ---- cmi.core.lesson_location
- result=lesson_location;
- }else if(param == 'cmi.core.total_time'){
- // ---- cmi.core.total_time
- result=total_time;
- }else if(param == 'cmi.core.score._children'){
- // ---- cmi.core.score._children
- result='raw,min,max';
- }else if(param == 'cmi.core.score.raw'){
- // ---- cmi.core.score.raw
- result=score;
- }else if(param == 'cmi.core.score.max'){
- // ---- cmi.core.score.max
- result=max;
- }else if(param == 'cmi.core.score.min'){
- // ---- cmi.core.score.min
- result=min;
- }else if(param == 'cmi.core.score'){
- // ---- cmi.core.score -- non-standard item, provided as cmi.core.score.raw just in case
- result=score;
- }else if(param == 'cmi.core.credit'){
- // ---- cmi.core.credit
- result = lms_item_credit;
- }else if(param == 'cmi.core.lesson_mode'){
- // ---- cmi.core.lesson_mode
- result = lms_item_lesson_mode;
- }else if(param == 'cmi.suspend_data'){
- // ---- cmi.suspend_data
- result = suspend_data;
- }else if(param == 'cmi.launch_data'){
- // ---- cmi.launch_data
- result = lms_item_launch_data;
- }else if(param == 'cmi.objectives._children'){
- // ---- cmi.objectives._children
- result = 'id,score,status';
- }else if(param == 'cmi.objectives._count'){
- // ---- cmi.objectives._count
- //result='<?php echo $oItem->get_view_count();?>';
- result = item_objectives.length;
- }else if(param.substring(0,15)== 'cmi.objectives.'){
- var myres = '';
- if(myres = param.match(/cmi.objectives.(\d+).(id|score|status|_children)(.*)/))
- {
- var obj_id = myres[1];
- var req_type = myres[2];
- if(item_objectives[obj_id]==null)
- {
- if(req_type == 'id')
- {
- result = '';
- }else if(req_type == '_children'){
- result = 'id,score,status';
- }else if(req_type == 'score'){
- if(myres[3]==null)
- {
- result = '';
- G_lastError = G_NotImplementedError;
- G_lastErrorString = 'Not implemented yet';
- }else if (myres[3] == '._children'){
- result = 'raw,min,max'; //non-standard, added for NetG
- }else if (myres[3] == '.raw'){
- result = '';
- }else if (myres[3] == '.max'){
- result = '';
- }else if (myres[3] == '.min'){
- result = '';
- }else{
- result = '';
- G_lastError = G_NotImplementedError;
- G_lastErrorString = 'Not implemented yet';
- }
- }else if(req_type == 'status'){
- result = 'not attempted';
- }
- }
- else
- {
- //the object is not null
- if(req_type == 'id')
- {
- result = item_objectives[obj_id][0];
- }else if(req_type == '_children'){
- result = 'id,score,status';
- }else if(req_type == 'score'){
- if(myres[3]==null)
- {
- result = '';
- G_lastError = G_NotImplementedError;
- G_lastErrorString = 'Not implemented yet';
- }else if (myres[3] == '._children'){
- result = 'raw,min,max'; //non-standard, added for NetG
- }else if (myres[3] == '.raw'){
- if(item_objectives[obj_id][2] != null)
- {
- result = item_objectives[obj_id][2];
- }else{
- result = '';
- }
- }else if (myres[3] == '.max'){
- if(item_objectives[obj_id][3] != null)
- {
- result = item_objectives[obj_id][3];
- }else{
- result = '';
- }
- }else if (myres[3] == '.min'){
- if(item_objectives[obj_id][4] != null)
- {
- result = item_objectives[obj_id][4];
- }else{
- result = '';
- }
- }else{
- result = '';
- G_lastError = G_NotImplementedError;
- G_lastErrorString = 'Not implemented yet';
- }
- }else if(req_type == 'status'){
- if(item_objectives[obj_id][1] != null)
- {
- result = item_objectives[obj_id][1];
- }else{
- result = 'not attempted';
- }
- }
- }
- }
- }else if(param == 'cmi.student_data._children'){
- // ---- cmi.student_data._children
- result = 'mastery_score,max_time_allowed';
- }else if(param == 'cmi.student_data.mastery_score'){
- // ---- cmi.student_data.mastery_score
- result = mastery_score;
- }else if(param == 'cmi.student_data.max_time_allowed'){
- // ---- cmi.student_data.max_time_allowed
- result = max_time_allowed;
- }else if(param == 'cmi.interactions._count'){
- // ---- cmi.interactions._count
- result = interactions.length;
- }else if(param == 'cmi.interactions._children'){
- // ---- cmi.interactions._children
- result = 'id,time,type,correct_responses,weighting,student_response,result,latency';
- }else{
- // ---- anything else
- result = '';
- G_lastError = G_NotImplementedError;
- G_lastErrorString = 'Not implemented yet';
- }
- logit_scorm("LMSGetValue\n\t('"+param+"') returned '"+result+"'",1);
- return result;
- }
- function GetValue(param) {
- return LMSGetValue(param);
- }
- function LMSSetValue(param, val) {
- logit_scorm("LMSSetValue\n\t('"+param+"','"+val+"')",0);
- commit = true; //value has changed, need to re-commit
- G_LastError = G_NoError ;
- G_LastErrorMessage = 'No error';
- return_value = 'false';
- if( param == "cmi.core.score.raw" )
- {
- score= val; return_value='true';
- } else if ( param == "cmi.core.score.max" ) {
- max = val;return_value='true';
- } else if ( param == "cmi.core.score.min" ) {
- min = val;return_value='true';
- } else if ( param == "cmi.core.lesson_location" ) {
- lesson_location = val;return_value='true';
- } else if ( param == "cmi.core.lesson_status" ) {
- saved_lesson_status = lesson_status;
- lesson_status = val;
- return_value='true';
- } else if ( param == "cmi.completion_status" ) {
- lesson_status = val;return_value='true'; //1.3
- } else if ( param == "cmi.core.session_time" ) {
- session_time = val;return_value='true';
- } else if ( param == "cmi.score.scaled") { //1.3
- if(val<=1 && val>=-1)
- {
- score = val ;
- return_value='true';
- }
- else
- {
- return_value='false';
- }
- } else if ( param == "cmi.success_status" ) {
- success_status = val;return_value='true'; //1.3
- } else if ( param == "cmi.suspend_data" ) {
- suspend_data = val;return_value='true';
- } else if ( param == "cmi.core.exit" ) {
- lms_item_core_exit = val;return_value='true';
- } else if ( param == "cmi.core.entry" ) {
- G_LastError = G_ElementIsReadOnly
- } else if ( param == "cmi.student_data.mastery_score" ) {
- G_LastError = G_ElementIsReadOnly;
- } else if ( param == "cmi.student_data.max_time_allowed" ) {
- G_LastError = G_ElementIsReadOnly;
- } else if ( param == "cmi.launch_data" ) {
- G_LastError = G_ElementIsReadOnly;
- } else {
- var myres = new Array();
- if(myres = param.match(/cmi.interactions.(\d+).(id|time|type|correct_responses|weighting|student_response|result|latency)(.*)/))
- {
- elem_id = myres[1];
- if(elem_id > interactions.length)
- {
- G_LastError = G_InvalidArgumentError;
- return_value = false;
- }
- else
- {
- if(interactions[elem_id] == null){
- interactions[elem_id] = ['','','','','','','',''];
- //id(0), type(1), time(2), weighting(3),correct_responses(4),student_response(5),result(6),latency(7)
- interactions[elem_id][4] = new Array();
- }
- elem_attrib = myres[2];
- switch(elem_attrib) {
- case "id":
- interactions[elem_id][0] = val;
- logit_scorm("Interaction "+elem_id+"'s id updated",2);
- return_value='true';
- break;
- case "time":
- interactions[elem_id][2] = val;
- logit_scorm("Interaction "+elem_id+"'s time updated",2);
- return_value='true';
- break;
- case "type":
- interactions[elem_id][1] = val;
- logit_scorm("Interaction "+elem_id+"'s type updated",2);
- return_value='true';
- break;
- case "correct_responses":
- //do nothing yet
- interactions[elem_id][4].push(val);
- logit_scorm("Interaction "+elem_id+"'s correct_responses not updated",2);
- return_value='true';
- break;
- case "weighting":
- interactions[elem_id][3] = val;
- logit_scorm("Interaction "+elem_id+"'s weighting updated",2);
- return_value='true';
- break;
- case "student_response":
- interactions[elem_id][5] = val;
- logit_scorm("Interaction "+elem_id+"'s student_response updated",2);
- return_value='true';
- break;
- case "result":
- interactions[elem_id][6] = val;
- logit_scorm("Interaction "+elem_id+"'s result updated",2);
- return_value='true';
- break;
- case "latency":
- interactions[elem_id][7] = val;
- logit_scorm("Interaction "+elem_id+"'s latency updated",2);
- return_value='true';
- break;
- default:
- G_lastError = G_NotImplementedError;
- G_lastErrorString = 'Not implemented yet';
- }
- }
- }else if(param.substring(0,15)== 'cmi.objectives.'){
- var myres = '';
- if(myres = param.match(/cmi.objectives.(\d+).(id|score|status)(.*)/))
- {
- obj_id = myres[1];
- if(obj_id > item_objectives.length)
- {
- G_LastError = G_InvalidArgumentError;
- return_value = false;
- }
- else
- {
- req_type = myres[2];
- if(obj_id == null || obj_id == '')
- {
- ;//do nothing
- }
- else
- {
- if(item_objectives[obj_id]==null)
- {
- item_objectives[obj_id] = ['','','','',''];
- }
- if( req_type == "id" ) {
- //item_objectives[obj_id][0] = val.substring(51,57);
- item_objectives[obj_id][0] = val;
- logit_scorm("Objective "+obj_id+"'s id updated",2);
- return_value = 'true';
- } else if ( req_type == "score" ) {
- if (myres[3] == '._children'){
- return_value = '';
- G_lastError = G_InvalidSetValue;
- G_lastErrorString = 'Invalid set value, element is a keyword';
- }else if (myres[3] == '.raw'){
- item_objectives[obj_id][2] = val;
- logit_scorm("Objective "+obj_id+"'s score raw updated",2);
- return_value = 'true';
- }else if (myres[3] == '.max'){
- item_objectives[obj_id][3] = val;
- logit_scorm("Objective "+obj_id+"'s score max updated",2);
- return_value = 'true';
- }else if (myres[3] == '.min'){
- item_objectives[obj_id][4] = val;
- logit_scorm("Objective "+obj_id+"'s score min updated",2);
- return_value = 'true';
- }else{
- return_value = '';
- G_lastError = G_NotImplementedError;
- G_lastErrorString = 'Not implemented yet';
- }
- } else if ( req_type == "status" ) {
- item_objectives[obj_id][1] = val;
- logit_scorm("Objective "+obj_id+"'s status updated",2);
- return_value = 'true';
- } else {
- G_lastError = G_NotImplementedError;
- G_lastErrorString = 'Not implemented yet';
- }
- }
- }
- }
- }else{
- G_lastError = G_NotImplementedError;
- G_lastErrorString = 'Not implemented yet';
- }
- }
- <?php
- if ($oLP->force_commit == 1){
- echo " var mycommit = LMSCommit('force');";
- }
- ?>
- return(return_value);
- }
- function SetValue(param, val) {
- return LMSSetValue(param, val);
- }
- function savedata(origin) { //origin can be 'commit', 'finish' or 'terminate'
- if ((lesson_status != 'completed') && (lesson_status != 'passed')
- && (mastery_score >=0) && (score >= mastery_score))
- {
- lesson_status = 'passed';
- }
- else if( (mastery_score < 0) && (lms_lp_type != '2') && ( lesson_status == 'incomplete') && (score >= (0.8*max) ) )
- { //the status cannot be modified automatically by the LMS under SCORM 1.2's rules
- <?php if ($autocomplete_when_80pct){ ?>
- lesson_status = 'completed';
- <?php }?>
- ;
- }
- logit_lms('saving data (status='+lesson_status+' - interactions: '+ interactions.length +')',1);
- xajax_save_item(lms_lp_id, lms_user_id, lms_view_id, lms_item_id, score, max, min, lesson_status, session_time, suspend_data, lesson_location, interactions, lms_item_core_exit);
- if(item_objectives.length>0)
- {
- xajax_save_objectives(lms_lp_id,lms_user_id,lms_view_id,lms_item_id,item_objectives);
- }
- }
- function LMSCommit(val) {
- logit_scorm('LMSCommit()',0);
- G_LastError = G_NoError ;
- G_LastErrorMessage = 'No error';
- savedata('commit');
- commit = false ; //now changes have been commited, no need to update until next SetValue()
- return('true');
- }
- function Commit(val) {
- return LMSCommit(val);
- }
- function LMSFinish(val) {
- G_LastError = G_NoError ;
- G_LastErrorMessage = 'No error';
- if (( commit == false )) {
- logit_scorm('LMSFinish() (no LMSCommit())',1);
- }
- if ( commit == true ) {
- logit_scorm('LMSFinish() called',1);
- savedata('finish');
- commit = false ;
- }
- return('true');
- }
- function Finish(val) {
- return LMSFinish(val);
- }
- function LMSGetLastError() {
- logit_scorm('LMSGetLastError()',1);
- return(G_LastError.toString());
- }
- function GetLastError() {
- return LMSGetLastError();
- }
- function LMSGetErrorString(errCode){
- logit_scorm('LMSGetErrorString()',1);
- return(G_LastErrorString);
- }
- function GetErrorString(errCode){
- return LMSGetErrorString(errCode);
- }
- function LMSGetDiagnostic(errCode){
- logit_scorm('LMSGetDiagnostic()',1);
- return(API.LMSGetLastError());
- }
- function GetDiagnostic(errCode){
- return LMSGetDiagnostic(errCode);
- }
- function Terminate(){
- logit_scorm('Terminate()',0);
- G_LastError = G_NoError ;
- G_LastErrorMessage = 'No error';
- commit = true;
- savedata('terminate');
- return (true);
- }
- <?php
- //--------------------------------------------------------------------//
- /**
- * Dokeos-specific code that deals with event handling and inter-frames
- * messaging/refreshing.
- * Note that from now on, the Dokeos JS code in this library will act as
- * a controller, of the MVC pattern, and receive all requests for frame
- * updates, then redispatch to any frame concerned.
- */
- ?>
- /**
- * Defining the AJAX-object class to be made available from other frames
- */
- function XAJAXobject() {
- this.xajax_switch_item_details=xajax_switch_item_details;
- this.switch_item=switch_item;
- this.xajax_save_objectives=xajax_save_objectives;
- this.xajax_save_item = xajax_save_item;
- }
- //it is not sure that the scos use the above declarations
- oXAJAX = new XAJAXobject();
- oxajax = new XAJAXobject();
- /**
- * Cross-browser event handling by Scott Andrew
- * @param element Element that needs an event attached
- * @param string Event type (load, unload, click, keyDown, ...)
- * @param string Function name (the event handler)
- * @param string used in addEventListener
- */
- function addEvent(elm, evType, fn, useCapture){
- if(elm.addEventListener){
- elm.addEventListener(evType, fn, useCapture);
- return true;
- }else if (elm.attachEvent){
- var r = elm.attachEvent('on' + evType, fn);
- }else{
- elm['on'+evType] = fn;
- }
- }
- /**
- * Add listeners to the page objects. This has to be defined for
- * the current context as it acts on objects that should exist
- * on the page
- * possibly deprecated
- */
- function addListeners(){
- //exit if the browser doesn't support ID or tag retrieval
- logit_lms('Entering addListeners()',2);
- if(!document.getElementsByTagName){
- logit_lms("getElementsByTagName not available",2);
- return;
- }
- if(!document.getElementById){
- logit_lms("getElementById not available",2);
- return;
- }
- //assign event handlers to objects
- if(lms_lp_type==1 || lms_item_type=='asset'){
- logit_lms('Dokeos LP or asset',2);
- //if this path is a Dokeos learnpath, then start manual save
- //when something is loaded in there
- addEvent(window,'unload',dokeos_save_asset,false);
- logit_lms('Added event listener on content_id for unload',2);
- }
- logit_lms('Quitting addListeners()',2);
- }
- /**
- * Load an item into the content frame:
- * - making sure the previous item status have been saved
- * - first updating the current item ID (to save the right item)
- * - updating the frame src
- * possibly deprecated
- */
- function load_item(item_id,url){
- if(document.getElementById('content_id'))
- {
- logit_lms('Loading item '+item_id,2);
- var cont_f = document.getElementById('content_id');
- if(cont_f.src){
- lms_old_item_id = lms_item_id;
- var lms_new_item_id = item_id;
- //load new content page into content frame
- if(lms_lp_type==1 || lms_item_type=='asset'){
- dokeos_save_asset();
- }
- cont_f.src = url;
- update_toc('unhighlight',lms_old_item_id);
- update_toc('highlight',item_id);
- return true;
- }
- logit_lms('cont_f.src has no properties',0);
- }
- logit_lms('content_id has no properties',0);
- return false;
- }
- /**
- * Save a Dokeos learnpath item's time and mark as completed upon
- * leaving it
- */
- function dokeos_save_asset(){
- logit_lms('dokeos_save_asset',2);
- xajax_save_item(lms_lp_id, lms_user_id, lms_view_id, lms_item_id, score, max, min, lesson_status, session_time, suspend_data, lesson_location,interactions, lms_item_core_exit);
- if(item_objectives.length>0)
- {
- xajax_save_objectives(lms_lp_id,lms_user_id,lms_view_id,lms_item_id,item_objectives);
- }
- }
- /**
- * Save a Dokeos learnpath item's time and mark as completed upon leaving it.
- * Same function as dokeos_save_asset() but saves it with empty params
- * to use values set from another side in the database. Only used by Dokeos quizzes.
- * Also save the score locally because it hasn't been done through SetValue().
- * Saving the status will be dealt with by the XAJAX function.
- */
- function dokeos_void_save_asset(myscore)
- {
- logit_lms('dokeos_save_asset',2);
- score = myscore;
- xajax_save_item(lms_lp_id, lms_user_id, lms_view_id, lms_item_id, myscore);
- }
- /**
- * Logs information about SCORM messages into the log frame
- * @param string Message to log
- * @param integer Priority (0 for top priority, 3 for lowest)
- */
- function logit_scorm(message,priority){
- if(scorm_logs>priority){
- if(frames["lp_log_name"] && frames["lp_log_name"].document && frames["lp_log_name"].document.getElementById && frames["lp_log_name"].document.getElementById('log_content')){
- frames["lp_log_name"].document.getElementById("log_content").innerHTML += "SCORM: " + message + "<br/>";
- }
- }
- }
- /**
- * Logs information about LMS activity into the log frame
- * @param string Message to log
- * @param integer Priority (0 for top priority, 3 for lowest)
- */
- function logit_lms(message,priority){
- if(lms_logs>priority){
- if(frames["lp_log_name"] && frames["lp_log_name"].document && frames["lp_log_name"].document.getElementById && frames["lp_log_name"].document.getElementById('log_content')){
- frames["lp_log_name"].document.getElementById("log_content").innerHTML += "LMS: " + message + "<br/>";
- }
- }
- }
- /**
- * update the Table Of Contents frame, by changing CSS styles, mostly
- * @param string Action to be taken
- * @param integer Item id to update
- */
- function update_toc(update_action,update_id)
- {
- <?php //if($oLP->mode != 'fullscreen'){ ?>
- var myframe = frames["toc_name"];
- var myelem = myframe.document.getElementById("toc_"+update_id);
- var myelemimg = myframe.document.getElementById("toc_img_"+update_id);
- logit_lms('update_toc("'+update_action+'",'+update_id+')',2);
- if(update_id != 0){
- switch(update_action){
- case 'unhighlight':
- myelem.className = "scorm_item";
- break;
- case 'highlight':
- myelem.className = "scorm_item_highlight";
- break;
- case 'not attempted':
- if(myelemimg.src != 'notattempted.png'){
- myelemimg.src = "notattempted.png";
- myelemimg.alt = "n";
- }
- break;
- case 'incomplete':
- if(myelemimg.src != 'incomplete.png'){
- myelemimg.src = "incomplete.png";
- myelemimg.alt = "i";
- }
- break;
- case 'completed':
- if(myelemimg.src != 'completed.png'){
- myelemimg.src = "completed.png";
- myelemimg.alt = "c";
- }
- break;
- case 'failed':
- if(myelemimg.src != 'failed.png'){
- myelemimg.src = "failed.png";
- myelemimg.alt = "f";
- }
- break;
- case 'passed':
- if(myelemimg.src != 'completed.png' && myelemimg.alt != 'passed'){
- myelemimg.src = "completed.png";
- myelemimg.alt = "p";
- }
- break;
- case 'browsed':
- if(myelemimg.src != 'completed.png' && myelemimg.alt != 'browsed'){
- myelemimg.src = "completed.png";
- myelemimg.alt = "b";
- }
- break;
- default:
- logit_lms('Update action unknown',2);
- break;
- }
- }
- return true;
- <?php //} ?>
- return true;
- }
- /**
- * Updates the progress bar with the new status. Prevents the need of a page refresh and flickering
- * @param integer Number of completed items
- * @param integer Number of items in total
- * @param string Display mode (absolute 'abs' or percentage '%').Defaults to %
- */
- function update_progress_bar(nbr_complete, nbr_total, mode)
- {
- logit_lms('update_progress_bar('+nbr_complete+','+nbr_total+','+mode+')',2);
- logit_lms('could update with data: '+lms_lp_id+','+lms_view_id+','+lms_user_id,2);
- var myframe = frames["nav_name"];
- if(myframe){
- if(mode == ''){mode='%';}
- if(nbr_total == 0){nbr_total=1;}
- var percentage = (nbr_complete/nbr_total)*100;
- percentage = Math.round(percentage);
- var pr_text = myframe.document.getElementById('progress_text');
- var pr_full = myframe.document.getElementById('progress_img_full');
-
- var pr_empty = myframe.document.getElementById('progress_img_empty');
- pr_full.width = percentage;
- pr_empty.width = 100-percentage;
- var mytext = '';
- switch(mode){
- case 'abs':
- mytext = nbr_complete + '/' + nbr_total;
- break;
- case '%':
- default:
- mytext = percentage + '%';
- break;
- }
- pr_text.innerHTML = mytext;
- }
- return true;
- }
- function update_stats_page()
- {
- var myframe = document.getElementById('content_id');
- var mysrc = myframe.location.href;
- if(mysrc == 'lp_controller.php?action=stats'){
- if(myframe && myframe.src){
- var mysrc = myframe.src;
- myframe.src = mysrc;
- }
- // = mysrc; //refresh page
- }
- return true;
- }
- /**
- * Updates the message frame with the given string
- */
- function update_message_frame(msg_msg)
- {
- if(msg_msg==null){msg_msg='';}
- var msg_f = frames["message_name"];
- if(!msg_f.document || !msg_f.document.getElementById('msg_div_id')){
- logit_lms('In update_message_frame() - message frame has no document property',0);
- }else{
- logit_lms('In update_message_frame() - updating frame',0);
- msg_f.document.getElementById('msg_div_id').innerHTML= msg_msg;
- }
- }
- /**
- * Function that handles the saving of an item and switching from an item to another.
- * Once called, this function should be able to do the whole process of (1) saving the
- * current item, (2) refresh all the values inside the SCORM API object, (3) open the
- * new item into the content_id frame, (4) refresh the table of contents, (5) refresh
- * the progress bar (completion), (6) refresh the message frame
- * @param integer Dokeos ID for the current item
- * @param string This parameter can be a string specifying the next
- * item (like 'next', 'previous', 'first' or 'last') or the id to the next item
- */
- function switch_item(current_item, next_item){
- //(1) save the current item
- logit_lms('Called switch_item with params '+lms_item_id+' and '+next_item+'',0);
- if(lms_lp_type==1 || lms_item_type=='asset' || session_time == '0' || session_time == '0:00:00'){
- xajax_save_item(lms_lp_id, lms_user_id, lms_view_id, lms_item_id, score, max, min, lesson_status, asset_timer, suspend_data, lesson_location,interactions, lms_item_core_exit);
- }else{
- xajax_save_item(lms_lp_id, lms_user_id, lms_view_id, lms_item_id, score, max, min, lesson_status, session_time, suspend_data, lesson_location,interactions, lms_item_core_exit);
- }
- if(item_objectives.length>0)
- {
- xajax_save_objectives(lms_lp_id,lms_user_id,lms_view_id,lms_item_id,item_objectives);
- }
- //(2) Refresh all the values inside this SCORM API object - use AJAX
- //xajax_backup_item_details(lms_lp_id, lms_user_id, lms_view_id, lms_item_id, score, max, min, lesson_status, session_time, suspend_data);
- xajax_switch_item_details(lms_lp_id,lms_user_id,lms_view_id,lms_item_id,next_item);
-
- //(3) open the new item in the content_id frame
- switch(next_item){
- case 'next':
- next_item = lms_next_item;
- break;
- case 'previous':
- next_item = lms_previous_item;
- break;
- default:
- break;
- }
- var mysrc = 'lp_controller.php?action=content&lp_id='+lms_lp_id+'&item_id='+next_item;
- var cont_f = document.getElementById('content_id');
- if(!cont_f){
- logit_lms('In switch - content frame not found',0);
- <?php if($oLP->mode = 'fullscreen'){ ?>
- cont_f = window.open(''+mysrc,'content_name','toolbar=0,location=0,status=0,scrollbars=1,resizable=1');
- <?php } else { ?>
- return false;
- <?php } ?>
- }
- else
- {
- cont_f.src = mysrc;
- }
- if(lms_lp_type==1 || lms_item_type=='asset'){
- xajax_start_timer();
- }
-
- //(4) refresh the audiorecorder if needed
- if(frames['audiorecorder_name']){
- frames['audiorecorder_name'].location.reload();
- }
-
-
- return true;
- }
- addEvent(window,'load',addListeners,false);
- if(lms_lp_type==1 || lms_item_type=='asset'){
- xajax_start_timer();
- }
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