h5p-php-library/js/h5p-x-api-event.js

318 lines
7.9 KiB
JavaScript

var H5P = window.H5P = window.H5P || {};
/**
* Used for xAPI events.
*
* @class
* @extends H5P.Event
*/
H5P.XAPIEvent = function () {
H5P.Event.call(this, 'xAPI', {'statement': {}}, {bubbles: true, external: true});
};
H5P.XAPIEvent.prototype = Object.create(H5P.Event.prototype);
H5P.XAPIEvent.prototype.constructor = H5P.XAPIEvent;
/**
* Set scored result statements.
*
* @param {number} score
* @param {number} maxScore
* @param {object} instance
* @param {boolean} completion
* @param {boolean} success
*/
H5P.XAPIEvent.prototype.setScoredResult = function (score, maxScore, instance, completion, success) {
this.data.statement.result = {};
if (typeof score !== 'undefined') {
if (typeof maxScore === 'undefined') {
this.data.statement.result.score = {'raw': score};
}
else {
this.data.statement.result.score = {
'min': 0,
'max': maxScore,
'raw': score
};
if (maxScore > 0) {
this.data.statement.result.score.scaled = Math.round(score / maxScore * 10000) / 10000;
}
}
}
if (typeof completion === 'undefined') {
this.data.statement.result.completion = (this.getVerb() === 'completed' || this.getVerb() === 'answered');
}
else {
this.data.statement.result.completion = completion;
}
if (typeof success !== 'undefined') {
this.data.statement.result.success = success;
}
if (instance && instance.activityStartTime) {
var duration = Math.round((Date.now() - instance.activityStartTime ) / 10) / 100;
// xAPI spec allows a precision of 0.01 seconds
this.data.statement.result.duration = 'PT' + duration + 'S';
}
};
/**
* Set a verb.
*
* @param {string} verb
* Verb in short form, one of the verbs defined at
* {@link http://adlnet.gov/expapi/verbs/|ADL xAPI Vocabulary}
*
*/
H5P.XAPIEvent.prototype.setVerb = function (verb) {
if (H5P.jQuery.inArray(verb, H5P.XAPIEvent.allowedXAPIVerbs) !== -1) {
this.data.statement.verb = {
'id': 'http://adlnet.gov/expapi/verbs/' + verb,
'display': {
'en-US': verb
}
};
}
else if (verb.id !== undefined) {
this.data.statement.verb = verb;
}
};
/**
* Get the statements verb id.
*
* @param {boolean} full
* if true the full verb id prefixed by http://adlnet.gov/expapi/verbs/
* will be returned
* @returns {string}
* Verb or null if no verb with an id has been defined
*/
H5P.XAPIEvent.prototype.getVerb = function (full) {
var statement = this.data.statement;
if ('verb' in statement) {
if (full === true) {
return statement.verb;
}
return statement.verb.id.slice(31);
}
else {
return null;
}
};
/**
* Set the object part of the statement.
*
* The id is found automatically (the url to the content)
*
* @param {Object} instance
* The H5P instance
*/
H5P.XAPIEvent.prototype.setObject = function (instance) {
if (instance.contentId) {
this.data.statement.object = {
'id': this.getContentXAPIId(instance),
'objectType': 'Activity',
'definition': {
'extensions': {
'http://h5p.org/x-api/h5p-local-content-id': instance.contentId
}
}
};
if (instance.subContentId) {
this.data.statement.object.definition.extensions['http://h5p.org/x-api/h5p-subContentId'] = instance.subContentId;
// Don't set titles on main content, title should come from publishing platform
if (typeof instance.getTitle === 'function') {
this.data.statement.object.definition.name = {
"en-US": instance.getTitle()
};
}
}
else {
var content = H5P.getContentForInstance(instance.contentId);
if (content && content.metadata && content.metadata.title) {
this.data.statement.object.definition.name = {
"en-US": H5P.createTitle(content.metadata.title)
};
}
}
}
};
/**
* Set the context part of the statement.
*
* @param {Object} instance
* The H5P instance
*/
H5P.XAPIEvent.prototype.setContext = function (instance) {
if (instance.parent && (instance.parent.contentId || instance.parent.subContentId)) {
this.data.statement.context = {
"contextActivities": {
"parent": [
{
"id": this.getContentXAPIId(instance.parent),
"objectType": "Activity"
}
]
}
};
}
if (instance.libraryInfo) {
if (this.data.statement.context === undefined) {
this.data.statement.context = {"contextActivities":{}};
}
this.data.statement.context.contextActivities.category = [
{
"id": "http://h5p.org/libraries/" + instance.libraryInfo.versionedNameNoSpaces,
"objectType": "Activity"
}
];
}
};
/**
* Set the actor. Email and name will be added automatically.
*/
H5P.XAPIEvent.prototype.setActor = function () {
if (H5PIntegration.user !== undefined) {
this.data.statement.actor = {
'name': H5PIntegration.user.name,
'mbox': 'mailto:' + H5PIntegration.user.mail,
'objectType': 'Agent'
};
}
else {
var uuid;
try {
if (localStorage.H5PUserUUID) {
uuid = localStorage.H5PUserUUID;
}
else {
uuid = H5P.createUUID();
localStorage.H5PUserUUID = uuid;
}
}
catch (err) {
// LocalStorage and Cookies are probably disabled. Do not track the user.
uuid = 'not-trackable-' + H5P.createUUID();
}
this.data.statement.actor = {
'account': {
'name': uuid,
'homePage': H5PIntegration.siteUrl
},
'objectType': 'Agent'
};
}
};
/**
* Get the max value of the result - score part of the statement
*
* @returns {number}
* The max score, or null if not defined
*/
H5P.XAPIEvent.prototype.getMaxScore = function () {
return this.getVerifiedStatementValue(['result', 'score', 'max']);
};
/**
* Get the raw value of the result - score part of the statement
*
* @returns {number}
* The score, or null if not defined
*/
H5P.XAPIEvent.prototype.getScore = function () {
return this.getVerifiedStatementValue(['result', 'score', 'raw']);
};
/**
* Get content xAPI ID.
*
* @param {Object} instance
* The H5P instance
*/
H5P.XAPIEvent.prototype.getContentXAPIId = function (instance) {
var xAPIId;
if (instance.contentId && H5PIntegration && H5PIntegration.contents && H5PIntegration.contents['cid-' + instance.contentId]) {
xAPIId = H5PIntegration.contents['cid-' + instance.contentId].url;
if (instance.subContentId) {
xAPIId += '?subContentId=' + instance.subContentId;
}
}
return xAPIId;
};
/**
* Check if this event is sent from a child (i.e not from grandchild)
*
* @return {Boolean}
*/
H5P.XAPIEvent.prototype.isFromChild = function () {
var parentId = this.getVerifiedStatementValue(['context', 'contextActivities', 'parent', 0, 'id']);
return !parentId || parentId.indexOf('subContentId') === -1;
};
/**
* Figure out if a property exists in the statement and return it
*
* @param {string[]} keys
* List describing the property we're looking for. For instance
* ['result', 'score', 'raw'] for result.score.raw
* @returns {*}
* The value of the property if it is set, null otherwise.
*/
H5P.XAPIEvent.prototype.getVerifiedStatementValue = function (keys) {
var val = this.data.statement;
for (var i = 0; i < keys.length; i++) {
if (val[keys[i]] === undefined) {
return null;
}
val = val[keys[i]];
}
return val;
};
/**
* List of verbs defined at {@link http://adlnet.gov/expapi/verbs/|ADL xAPI Vocabulary}
*
* @type Array
*/
H5P.XAPIEvent.allowedXAPIVerbs = [
'answered',
'asked',
'attempted',
'attended',
'commented',
'completed',
'exited',
'experienced',
'failed',
'imported',
'initialized',
'interacted',
'launched',
'mastered',
'passed',
'preferred',
'progressed',
'registered',
'responded',
'resumed',
'scored',
'shared',
'suspended',
'terminated',
'voided',
// Custom verbs used for action toolbar below content
'downloaded',
'accessed-embed',
'accessed-copyright'
];