Captivate SCORM 2004 Output, replaced unload handler

## captivate.js
// set document.domain property here, if it works for your environment/SCORM implementation
// document.domain="";
var strURLFile = "sample.swf",			// Name of the flash file
	flashvars = {},
	params = { bgcolor: "#f5f4f1", menu: "false" },
	attributes = { id: "Captivate", name: "Captivate" },
	CaptivateSWF; //Cache the reference to the SWF to avoid future lookups


function callbackFn(e){
	//e.ref is the <object> aka SWF file. No need for getElementById
	if(e.success && e.ref){
		CaptivateSWF = e.ref;
		CaptivateSWF.tabIndex = -1; //Set tabIndex to enable focus on non-form elements
		CaptivateSWF.focus();
	}
}

//Initialize SCORM API
SCORM_API = getAPI();

//Only embed SWF if SCORM API is found
if(SCORM_API){

	//swfobject.embedSWF has a built-in domready call,
	//so it doesn't need to be wrapped in a window.onload event.
	swfobject.embedSWF(strURLFile + "?SCORM_API=1.0&SCORM_TYPE=0", "CaptivateContent", "641", "512", "10", false, flashvars, params, attributes, callbackFn);

} else {

	//Provide a useful error message for the learner. Will only show up if SCORM API is not found!
	swfobject.addDomLoadEvent(function(){
		document.getElementById("CaptivateContent").innerHTML = "Sorry, but the course is not available at this time (SCORM API not found). Please try again. If you continue to encounter problems, please contact the course administrator.";
	});

}

## sample.htm
<!-- Copyright [2008] Adobe Systems Incorporated.  All rights reserved -->
<!-- saved from url=(0013)about:internet -->
<!DOCTYPE HTML>
<html lang="en">
	<head>
		<meta charset="utf-8" />
		<title></title>
		<script src="https://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js"></script>
		<script src="standard.js"></script>
		<script src="SCORM_support/scorm_support.js"></script>
		<script src="captivate.js"></script>
		<style>
			body { background: #f5f4f1; text-align: center; }
		</style>
	</head>
	<body>
		<div id="CaptivateContent"></div>
		<noscript>
			This course requires JavaScript to be enabled in your browser. Please enable JavaScript, then relaunch the course.
		</noscript>
	</body>
</html>

## scorm_support.js
var SCORM_API = null,
	unloaded = false,
	isTerminated = false,
	courseStatus;

/* -------------------------------------------------------------------------
   findAPI(window)
   Adapted from pipwerks SCORM wrapper
   https://github.com/pipwerks/scorm-api-wrapper

   Looks for an object named API in parent and opener windows

   Parameters: window (the browser window object).
   Returns:    Object if API is found, null if no API found
---------------------------------------------------------------------------- */

var findAPI = function(win){

    var API,
        findAttempts = 0,
        findAttemptLimit = 500;

    while (!win.API_1484_11 && win.parent && win.parent != win && findAttempts <= findAttemptLimit){
        findAttempts++;
        win = win.parent;
    }

	API = win.API_1484_11 || null;

    /*
	if(!API){
        alert("Error finding API. \nFind attempts: " +findAttempts +". \nFind attempt limit: " +findAttemptLimit);
    }
	*/

    return API;

};


/* -------------------------------------------------------------------------
   getAPI()
   Adapted from pipwerks SCORM wrapper
   https://github.com/pipwerks/scorm-api-wrapper

   Looks for an object named API_1484_11, first in the current window's frame
   hierarchy and then, if necessary, in the current window's opener window
   hierarchy (if there is an opener window).

   Parameters:  None.
   Returns:     Object if API found, null if no API found
---------------------------------------------------------------------------- */

var getAPI = function(){

    var API = null,
        win = window;

	//Look in parent windows first
    if(win.parent && win.parent != win){
        API = findAPI(win.parent);
    }

	//Look in opener windows next
    if(!API && win.top.opener){
        API = findAPI(win.top.opener);
    }

    //Plateau LMS needs special hand-holding
    if(!API && win.top.opener && win.top.opener.document) {
        API = findAPI(win.top.opener.document);
    }

    //if(!API){ alert("getAPI failed: Can't find the API!"); }

    return API;

};


//Quick way to check if SCORM API is available and communicative
function SCORM_API_Available() {
	return (SCORM_API && SCORM_API.GetLastError && typeof SCORM_API.GetLastError() !== "undefined");
}

function Captivate_DoExternalInterface(command, parameter, value, variable){

	var strErr = "true";

	//Ensure SCORM API is still available
	if(!SCORM_API_Available()){ return; }

	if(command === "Initialize"){

		CaptivateSWF.SetScormVariable(variable, SCORM_API.Initialize(""));

		courseStatus = SCORM_API.GetValue("cmi.completion_status");

		if(courseStatus === "not attempted"){
			SCORM_API.SetValue("cmi.completion_status", "incomplete");
		}

	} else if(command === "SetValue"){

		strErr = SCORM_API.SetValue(parameter, value);
		CaptivateSWF.SetScormVariable(variable, strErr);

		if(parameter === "completion_status"){
			courseStatus = value;
		}

	} else if(command === "Terminate"){

		strErr = SCORM_API.Terminate("");
		CaptivateSWF.SetScormVariable(variable, strErr);
		isTerminated = (strErr === "true");

	} else if(command === "Commit"){

		strErr = SCORM_API.Commit("");
		CaptivateSWF.SetScormVariable(variable, strErr);

	} else if((value) && (value.length > 0)){

		if(command === "GetLastError"){

			strErr = SCORM_API.GetLastError();
			CaptivateSWF.SetScormVariable(variable, strErr);

		} else {

			strErr = SCORM_API[command](parameter);
			CaptivateSWF.SetScormVariable(variable, strErr);

		}

	}

	return strErr;

}


function unloadHandler(){
	if(!unloaded && SCORM_API_Available() && !isTerminated){
		var exit_status = (courseStatus === "incomplete") ? "suspend" : "normal";
		SCORM_API.SetValue("cmi.exit", exit_status); //Set exit to whatever is needed
		SCORM_API.Commit(""); //Ensure that LMS saves all data
		isTerminated = (SCORM_API.Terminate("") === "true"); //close the SCORM API connection properly
		unloaded = true; //Ensure we don't invoke unloadHandler more than once.
	}
}

window.onbeforeunload = unloadHandler;
window.onunload = unloadHandler;
	// set document.domain property here, if it works for your environment/SCORM implementation
	// document.domain="";
	var strURLFile = "sample.swf", // Name of the flash file
	flashvars = {},
	params = { bgcolor: "#f5f4f1", menu: "false" },
	attributes = { id: "Captivate", name: "Captivate" },
	CaptivateSWF; //Cache the reference to the SWF to avoid future lookups


	function callbackFn(e){
	//e.ref is the <object> aka SWF file. No need for getElementById
	if(e.success && e.ref){
	CaptivateSWF = e.ref;
	CaptivateSWF.tabIndex = -1; //Set tabIndex to enable focus on non-form elements
	CaptivateSWF.focus();
	}
	}

	//Initialize SCORM API
	SCORM_API = getAPI();

	//Only embed SWF if SCORM API is found
	if(SCORM_API){

	//swfobject.embedSWF has a built-in domready call,
	//so it doesn't need to be wrapped in a window.onload event.
	swfobject.embedSWF(strURLFile + "?SCORM_API=1.0&SCORM_TYPE=0", "CaptivateContent", "641", "512", "10", false, flashvars, params, attributes, callbackFn);

	} else {

	//Provide a useful error message for the learner. Will only show up if SCORM API is not found!
	swfobject.addDomLoadEvent(function(){
	document.getElementById("CaptivateContent").innerHTML = "Sorry, but the course is not available at this time (SCORM API not found). Please try again. If you continue to encounter problems, please contact the course administrator.";
	});

	}
	<!-- Copyright [2008] Adobe Systems Incorporated. All rights reserved -->
	<!-- saved from url=(0013)about:internet -->
	<!DOCTYPE HTML>
	<html lang="en">
	<head>
	<meta charset="utf-8" />
	<title></title>
	<script src="https://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js"></script>
	<script src="standard.js"></script>
	<script src="SCORM_support/scorm_support.js"></script>
	<script src="captivate.js"></script>
	<style>
	body { background: #f5f4f1; text-align: center; }
	</style>
	</head>
	<body>
	<div id="CaptivateContent"></div>
	<noscript>
	This course requires JavaScript to be enabled in your browser. Please enable JavaScript, then relaunch the course.
	</noscript>
	</body>
	</html>
	var SCORM_API = null,
	unloaded = false,
	isTerminated = false,
	courseStatus;

	/* -------------------------------------------------------------------------
	findAPI(window)
	Adapted from pipwerks SCORM wrapper
	https://github.com/pipwerks/scorm-api-wrapper

	Looks for an object named API in parent and opener windows

	Parameters: window (the browser window object).
	Returns: Object if API is found, null if no API found
	---------------------------------------------------------------------------- */

	var findAPI = function(win){

	var API,
	findAttempts = 0,
	findAttemptLimit = 500;

	while (!win.API_1484_11 && win.parent && win.parent != win && findAttempts <= findAttemptLimit){
	findAttempts++;
	win = win.parent;
	}

	API = win.API_1484_11 \|\| null;

	/*
	if(!API){
	alert("Error finding API. \nFind attempts: " +findAttempts +". \nFind attempt limit: " +findAttemptLimit);
	}
	*/

	return API;

	};


	/* -------------------------------------------------------------------------
	getAPI()
	Adapted from pipwerks SCORM wrapper
	https://github.com/pipwerks/scorm-api-wrapper

	Looks for an object named API_1484_11, first in the current window's frame
	hierarchy and then, if necessary, in the current window's opener window
	hierarchy (if there is an opener window).

	Parameters: None.
	Returns: Object if API found, null if no API found
	---------------------------------------------------------------------------- */

	var getAPI = function(){

	var API = null,
	win = window;

	//Look in parent windows first
	if(win.parent && win.parent != win){
	API = findAPI(win.parent);
	}

	//Look in opener windows next
	if(!API && win.top.opener){
	API = findAPI(win.top.opener);
	}

	//Plateau LMS needs special hand-holding
	if(!API && win.top.opener && win.top.opener.document) {
	API = findAPI(win.top.opener.document);
	}

	//if(!API){ alert("getAPI failed: Can't find the API!"); }

	return API;

	};


	//Quick way to check if SCORM API is available and communicative
	function SCORM_API_Available() {
	return (SCORM_API && SCORM_API.GetLastError && typeof SCORM_API.GetLastError() !== "undefined");
	}

	function Captivate_DoExternalInterface(command, parameter, value, variable){

	var strErr = "true";

	//Ensure SCORM API is still available
	if(!SCORM_API_Available()){ return; }

	if(command === "Initialize"){

	CaptivateSWF.SetScormVariable(variable, SCORM_API.Initialize(""));

	courseStatus = SCORM_API.GetValue("cmi.completion_status");

	if(courseStatus === "not attempted"){
	SCORM_API.SetValue("cmi.completion_status", "incomplete");
	}

	} else if(command === "SetValue"){

	strErr = SCORM_API.SetValue(parameter, value);
	CaptivateSWF.SetScormVariable(variable, strErr);

	if(parameter === "completion_status"){
	courseStatus = value;
	}

	} else if(command === "Terminate"){

	strErr = SCORM_API.Terminate("");
	CaptivateSWF.SetScormVariable(variable, strErr);
	isTerminated = (strErr === "true");

	} else if(command === "Commit"){

	strErr = SCORM_API.Commit("");
	CaptivateSWF.SetScormVariable(variable, strErr);

	} else if((value) && (value.length > 0)){

	if(command === "GetLastError"){

	strErr = SCORM_API.GetLastError();
	CaptivateSWF.SetScormVariable(variable, strErr);

	} else {

	strErr = SCORM_API[command](parameter);
	CaptivateSWF.SetScormVariable(variable, strErr);

	}

	}

	return strErr;

	}


	function unloadHandler(){
	if(!unloaded && SCORM_API_Available() && !isTerminated){
	var exit_status = (courseStatus === "incomplete") ? "suspend" : "normal";
	SCORM_API.SetValue("cmi.exit", exit_status); //Set exit to whatever is needed
	SCORM_API.Commit(""); //Ensure that LMS saves all data
	isTerminated = (SCORM_API.Terminate("") === "true"); //close the SCORM API connection properly
	unloaded = true; //Ensure we don't invoke unloadHandler more than once.
	}
	}

	window.onbeforeunload = unloadHandler;
	window.onunload = unloadHandler;