138 lines
3.2 KiB
JavaScript
138 lines
3.2 KiB
JavaScript
import 'promise-polyfill/src/polyfill';
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import 'unfetch/polyfill';
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import { doNotTrack, hook, post } from '../lib/web';
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import { removeTrailingSlash } from '../lib/url';
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(window => {
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const {
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screen: { width, height },
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navigator: { language },
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location: { hostname, pathname, search },
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document,
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history,
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} = window;
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const script = document.querySelector('script[data-website-id]');
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const attr = key => script && script.getAttribute(key);
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const website = attr('data-website-id');
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const hostUrl = attr('data-host-url');
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const autoTrack = attr('data-auto-track') !== 'false';
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const dnt = attr('data-do-not-track') === 'true';
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if (!script || (dnt && doNotTrack())) return;
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const root = hostUrl
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? removeTrailingSlash(hostUrl)
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: new URL(script.src).href.split('/').slice(0, -1).join('/');
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const screen = `${width}x${height}`;
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const listeners = [];
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let currentUrl = `${pathname}${search}`;
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let currentRef = document.referrer;
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/* Collect metrics */
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const collect = (type, params, uuid) => {
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const payload = {
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website: uuid,
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hostname,
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screen,
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language,
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};
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if (params) {
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Object.keys(params).forEach(key => {
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payload[key] = params[key];
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});
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}
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return post(`${root}/api/collect`, {
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type,
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payload,
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});
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};
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const pageView = (url = currentUrl, referrer = currentRef, uuid = website) =>
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collect(
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'pageview',
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{
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url,
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referrer,
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},
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uuid,
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);
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const pageEvent = (event_value, event_type = 'custom', url = currentUrl, uuid = website) =>
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collect(
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'event',
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{
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event_type,
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event_value,
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url,
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},
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uuid,
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);
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/* Handle events */
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const loadEvents = () => {
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document.querySelectorAll("[class*='umami--']").forEach(element => {
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element.className.split(' ').forEach(className => {
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if (/^umami--([a-z]+)--([a-z0-9_]+[a-z0-9-_]+)$/.test(className)) {
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const [, type, value] = className.split('--');
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const listener = () => pageEvent(value, type);
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listeners.push([element, type, listener]);
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element.addEventListener(type, listener, true);
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}
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});
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});
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};
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const removeEvents = () => {
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listeners.forEach(([element, type, listener]) => {
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element && element.removeEventListener(type, listener, true);
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});
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listeners.length = 0;
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};
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/* Handle history changes */
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const handlePush = (state, title, url) => {
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removeEvents();
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currentRef = currentUrl;
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const newUrl = url.toString();
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if (newUrl.substring(0, 4) === 'http') {
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const { pathname, search } = new URL(newUrl);
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currentUrl = `${pathname}${search}`;
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} else {
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currentUrl = newUrl;
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}
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pageView(currentUrl, currentRef);
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setTimeout(loadEvents, 300);
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};
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/* Global */
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if (!window.umami) {
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const umami = event_value => pageEvent(event_value);
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umami.pageView = pageView;
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umami.pageEvent = pageEvent;
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window.umami = umami;
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}
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/* Start */
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if (autoTrack) {
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history.pushState = hook(history, 'pushState', handlePush);
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history.replaceState = hook(history, 'replaceState', handlePush);
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pageView(currentUrl, currentRef);
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}
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})(window);
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