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import $ from 'jquery';
const extractData = (el, opts = {}) => {
const { trackEvent, trackLabel = '', trackProperty = '' } = el.dataset;
let trackValue = el.dataset.trackValue || el.value || '';
if (el.type === 'checkbox' && !el.checked) trackValue = false;
return [
trackEvent + (opts.suffix || ''),
{
label: trackLabel,
property: trackProperty,
value: trackValue,
},
];
};
export default class Tracking {
static trackable() {
return !['1', 'yes'].includes(
window.doNotTrack || navigator.doNotTrack || navigator.msDoNotTrack,
);
}
static enabled() {
return typeof window.snowplow === 'function' && this.trackable();
}
static event(category = document.body.dataset.page, event = 'generic', data = {}) {
if (!this.enabled()) return false;
// eslint-disable-next-line @gitlab/i18n/no-non-i18n-strings
if (!category) throw new Error('Tracking: no category provided for tracking.');
return window.snowplow(
'trackStructEvent',
category,
event,
Object.assign({}, { label: '', property: '', value: '' }, data),
);
}
constructor(category = document.body.dataset.page) {
this.category = category;
}
bind(container = document) {
if (!this.constructor.enabled()) return;
container.querySelectorAll(`[data-track-event]`).forEach(el => {
if (this.customHandlingFor(el)) return;
// jquery is required for select2, so we use it always
// see: https://github.com/select2/select2/issues/4686
$(el).on('click', this.eventHandler(this.category));
});
}
customHandlingFor(el) {
const classes = el.classList;
// bootstrap dropdowns
if (classes.contains('dropdown')) {
$(el).on('show.bs.dropdown', this.eventHandler(this.category, { suffix: '_show' }));
$(el).on('hide.bs.dropdown', this.eventHandler(this.category, { suffix: '_hide' }));
return true;
}
return false;
}
eventHandler(category = null, opts = {}) {
return e => {
this.constructor.event(category || this.category, ...extractData(e.currentTarget, opts));
};
}
}
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