jiti-meet/analytics-ga.js

147 lines
5.1 KiB
JavaScript

/* global ga */
(function(ctx) {
/**
*
*/
function Analytics() {
/* eslint-disable */
/**
* Google Analytics
*/
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-319188-14', 'jit.si');
ga('send', 'pageview');
/* eslint-enable */
}
/**
* Extracts the integer to use for a Google Analytics event's value field
* from a lib-jitsi-meet analytics event.
* @param {Object} event - The lib-jitsi-meet analytics event.
* @returns {Object} - The integer to use for the 'value' of a Google
* Analytics event.
* @private
*/
Analytics.prototype._extractAction = function(event) {
// Page events have a single 'name' field.
if (event.type === 'page') {
return event.name;
}
// All other events have action, actionSubject, and source fields. All
// three fields are required, and the often jitsi-meet and
// lib-jitsi-meet use the same value when separate values are not
// necessary (i.e. event.action == event.actionSubject).
// Here we concatenate these three fields, but avoid adding the same
// value twice, because it would only make the GA event's action harder
// to read.
let action = event.action;
if (event.actionSubject && event.actionSubject !== event.action) {
// Intentionally use string concatenation as analytics needs to
// work on IE but this file does not go through babel. For some
// reason disabling this globally for the file does not have an
// effect.
// eslint-disable-next-line prefer-template
action = event.actionSubject + '.' + action;
}
if (event.source && event.source !== event.action
&& event.source !== event.action) {
// eslint-disable-next-line prefer-template
action = event.source + '.' + action;
}
return action;
};
/**
* Extracts the integer to use for a Google Analytics event's value field
* from a lib-jitsi-meet analytics event.
* @param {Object} event - The lib-jitsi-meet analytics event.
* @returns {Object} - The integer to use for the 'value' of a Google
* Analytics event, or NaN if the lib-jitsi-meet event doesn't contain a
* suitable value.
* @private
*/
Analytics.prototype._extractValue = function(event) {
let value = event && event.attributes && event.attributes.value;
// Try to extract an integer from the "value" attribute.
value = Math.round(parseFloat(value));
return value;
};
/**
* Extracts the string to use for a Google Analytics event's label field
* from a lib-jitsi-meet analytics event.
* @param {Object} event - The lib-jitsi-meet analytics event.
* @returns {string} - The string to use for the 'label' of a Google
* Analytics event.
* @private
*/
Analytics.prototype._extractLabel = function(event) {
let label = '';
// The label field is limited to 500B. We will concatenate all
// attributes of the event, except the user agent because it may be
// lengthy and is probably included from elsewhere.
for (const property in event.attributes) {
if (property !== 'permanent_user_agent'
&& event.attributes.hasOwnProperty(property)) {
// eslint-disable-next-line prefer-template
label += property + '=' + event.attributes[property] + '&';
}
}
if (label.length > 0) {
label = label.slice(0, -1);
}
return label;
};
/**
* This is the entry point of the API. The function sends an event to
* google analytics. The format of the event is described in
* AnalyticsAdapter in lib-jitsi-meet.
* @param {Object} event - the event in the format specified by
* lib-jitsi-meet.
*/
Analytics.prototype.sendEvent = function(event) {
if (!event) {
return;
}
const gaEvent = {
'eventCategory': 'jitsi-meet',
'eventAction': this._extractAction(event),
'eventLabel': this._extractLabel(event)
};
const value = this._extractValue(event);
if (!isNaN(value)) {
gaEvent.eventValue = value;
}
ga('send', 'event', gaEvent);
};
if (typeof ctx.JitsiMeetJS === 'undefined') {
ctx.JitsiMeetJS = {};
}
if (typeof ctx.JitsiMeetJS.app === 'undefined') {
ctx.JitsiMeetJS.app = {};
}
if (typeof ctx.JitsiMeetJS.app.analyticsHandlers === 'undefined') {
ctx.JitsiMeetJS.app.analyticsHandlers = [];
}
ctx.JitsiMeetJS.app.analyticsHandlers.push(Analytics);
})(window);
/* eslint-enable prefer-template */