var H5P = H5P || {}; /** * The external event dispatcher. Others, outside of H5P may register and * listen for H5P Events here. * * @type {H5P.EventDispatcher} */ H5P.externalDispatcher = new H5P.EventDispatcher(); // EventDispatcher extensions /** * Helper function for triggering xAPI added to the EventDispatcher. * * @param {string} verb * The short id of the verb we want to trigger * @param {Oject} [extra] * Extra properties for the xAPI statement */ H5P.EventDispatcher.prototype.triggerXAPI = function (verb, extra) { this.trigger(this.createXAPIEventTemplate(verb, extra)); }; /** * Helper function to create event templates added to the EventDispatcher. * * Will in the future be used to add representations of the questions to the * statements. * * @param {string} verb * Verb id in short form * @param {Object} [extra] * Extra values to be added to the statement * @returns {H5P.XAPIEvent} * Instance */ H5P.EventDispatcher.prototype.createXAPIEventTemplate = function (verb, extra) { var event = new H5P.XAPIEvent(); event.setActor(); event.setVerb(verb); if (extra !== undefined) { for (var i in extra) { event.data.statement[i] = extra[i]; } } if (!('object' in event.data.statement)) { event.setObject(this); } if (!('context' in event.data.statement)) { event.setContext(this); } return event; }; /** * Helper function to create xAPI completed events * * DEPRECATED - USE triggerXAPIScored instead * * @deprecated * since 1.5, use triggerXAPIScored instead. * @param {number} score * Will be set as the 'raw' value of the score object * @param {number} maxScore * will be set as the "max" value of the score object * @param {boolean} success * will be set as the "success" value of the result object */ H5P.EventDispatcher.prototype.triggerXAPICompleted = function (score, maxScore, success) { var verb = 'completed'; if (typeof success !== 'undefined') { if (success) {verb = "passed";} else {verb = "failed";} } this.triggerXAPIScored(score, maxScore, verb, true, success); }; /** * Helper function to create scored xAPI events * * @param {number} score * Will be set as the 'raw' value of the score object * @param {number} maxScore * Will be set as the "max" value of the score object * @param {string} verb * Short form of adl verb */ H5P.EventDispatcher.prototype.triggerXAPIScored = function (score, maxScore, verb, completion, success) { var event = this.createXAPIEventTemplate(verb); event.setScoredResult(score, maxScore, this, completion, success); this.trigger(event); }; H5P.EventDispatcher.prototype.setActivityStarted = function() { this.activityStartTime = Date.now(); }; /** * Internal H5P function listening for xAPI completed events and stores scores * * @param {H5P.XAPIEvent} event */ H5P.xAPICompletedListener = function (event) { if (event.getVerb() === 'completed' && !event.getVerifiedStatementValue(['context', 'contextActivities', 'parent'])) { var score = event.getScore(); var maxScore = event.getMaxScore(); var contentId = event.getVerifiedStatementValue(['object', 'definition', 'extensions', 'http://h5p.org/x-api/h5p-local-content-id']); H5P.setFinished(contentId, score, maxScore); } };