Merge pull request #1757 from alphagov/change-analytics-calls

Change analytics calls

CHANGELOG.md

@@ -7,6 +7,10 @@
   useful summary for people upgrading their application, not a replication
   of the commit log.
 
+## Unreleased
+
+* Change analytics calls ([PR #1757](https://github.com/alphagov/govuk_publishing_components/pull/1757))
+
 ## 23.1.0
 
 * Add custom margin support for print link ([PR #1753](https://github.com/alphagov/govuk_publishing_components/pull/1753))

app/assets/javascripts/govuk_publishing_components/analytics/init.js

@@ -0,0 +1,48 @@
+var analyticsInit = function (gaProperty, gaPropertyCrossDomain, linkedDomains) {
+  'use strict'
+
+  var consentCookie = window.GOVUK.getConsentCookie()
+
+  var dummyAnalytics = {
+    addLinkedTrackerDomain: function () {},
+    setDimension: function () {},
+    setOptionsForNextPageView: function () {},
+    trackEvent: function () {},
+    trackPageview: function () {},
+    trackShare: function () {}
+  }
+
+  // Disable analytics by default
+  // This will be reversed below, if the consent cookie says usage cookies are allowed
+  var disabler = 'ga-disable-' + gaProperty
+  window[disabler] = true
+
+  if (consentCookie && consentCookie.usage) {
+    window[disabler] = false
+
+    // Load Google Analytics libraries
+    window.GOVUK.StaticAnalytics.load()
+
+    // Use document.domain in dev, preview and staging so that tracking works
+    // Otherwise explicitly set the domain as www.gov.uk (and not gov.uk).
+    var cookieDomain = (document.domain === 'www.gov.uk') ? '.www.gov.uk' : document.domain
+
+    // Configure profiles, setup custom vars, track initial pageview
+    var analytics = new window.GOVUK.StaticAnalytics({
+      universalId: gaProperty,
+      cookieDomain: cookieDomain,
+      allowLinker: true
+    })
+
+    // Make interface public for virtual pageviews and events
+    window.GOVUK.analytics = analytics
+
+    if (linkedDomains && linkedDomains.length > 0) {
+      window.GOVUK.analytics.addLinkedTrackerDomain(gaPropertyCrossDomain, 'govuk', linkedDomains)
+    }
+  } else {
+    window.GOVUK.analytics = dummyAnalytics
+  }
+}
+
+window.GOVUK.analyticsInit = analyticsInit