Sha256: 274012b64e0324bba3faf11da6296af11ca00615abc99228aaea7e037a9bc65a
Contents?: true
Size: 1.99 KB
Versions: 4
Compression:
Stored size: 1.99 KB
Contents
/* global XMLHttpRequest */
window.GOVUK = window.GOVUK || {}
window.GOVUK.Modules = window.GOVUK.Modules || {};
(function (Modules) {
function SinglePageNotificationButton ($module) {
this.$module = $module
this.basePath = this.$module.querySelector('input[name="base_path"]').value
this.buttonLocation = this.$module.getAttribute('data-button-location')
this.personalisationEndpoint = '/api/personalisation/check-email-subscription?base_path=' + this.basePath
// This attribute is passed through to the personalisation API to ensure the updated button has the same button_location for analytics
if (this.buttonLocation) this.personalisationEndpoint += '&button_location=' + this.buttonLocation
}
SinglePageNotificationButton.prototype.init = function () {
var xhr = new XMLHttpRequest()
xhr.open('GET', this.personalisationEndpoint, true)
xhr.onreadystatechange = function () {
if (xhr.readyState === 4 && xhr.status === 200) {
var responseText = xhr.responseText
// if response text exists and is JSON parse-able, parse the response and get the button html
if (responseText && this.responseIsJSON(responseText)) {
var newButton = JSON.parse(responseText).button_html
var html = document.createElement('div')
html.innerHTML = newButton
// test that the html returned contains the button component; if yes, swap the button for the updated version
var responseButtonContainer = html.querySelector('form.gem-c-single-page-notification-button')
if (responseButtonContainer) {
this.$module.parentNode.replaceChild(responseButtonContainer, this.$module)
}
}
}
}.bind(this)
xhr.send()
}
SinglePageNotificationButton.prototype.responseIsJSON = function (string) {
try {
JSON.parse(string)
} catch (e) {
return false
}
return true
}
Modules.SinglePageNotificationButton = SinglePageNotificationButton
})(window.GOVUK.Modules)
Version data entries
4 entries across 4 versions & 1 rubygems