95 lines
2.7 KiB
JavaScript
95 lines
2.7 KiB
JavaScript
(function(win, doc, navigator) {
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const screen = win.screen;
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const encode = encodeURIComponent;
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const max = Math.max;
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// const min = Math.min;
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const performance = win.performance;
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const timing = performance && performance.timing;
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const navigation = performance && performance.navigation;
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const pvData = {
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dt: doc.title,
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de: doc.characterSet || doc.charset,
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dr: doc.referrer || void 0,
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ul:
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navigator.language ||
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navigator.browserLanguage ||
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navigator.userLanguage ||
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void 0,
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sd: screen.colorDepth + "-bit",
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sr: screen.width + "x" + screen.height,
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vp:
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max(doc.documentElement.clientWidth, win.innerWidth || 0) +
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"x" +
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max(doc.documentElement.clientHeight, win.innerHeight || 0),
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ga: win.ga_tid,
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z: new Date().getTime()
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};
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function buildQueryString(params) {
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const qs = [];
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for (const k in params) {
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if (params.hasOwnProperty(k) && params[k] !== void 0) {
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qs.push(encode(k) + "=" + encode(params[k]));
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}
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}
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return qs.join("&");
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}
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function sendViaImg(uri, params) {
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const img = new Image();
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// img.width = img.height = 1;
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img.referrerPolicy = "unsafe-url";
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img.src = uri + "?" + buildQueryString(params);
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}
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// function sendBeacon(uri, params) {
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// if (!navigator.sendBeacon) return false;
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// return navigator.sendBeacon(uri, params);
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// }
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function send(uri, params) {
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uri = win.ga_url + uri;
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// if (!sendBeacon(uri, params)) {
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sendViaImg(uri, params);
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// }
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}
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function sendTiming() {
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if (!timing) return;
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const navigationStart = timing.navigationStart;
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if (navigationStart == 0) return;
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const filterNumber = num =>
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isNaN(num) || num == Infinity || num < 0 ? void 0 : num;
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const perfData = {
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plt: filterNumber(timing.loadEventStart - navigationStart),
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dns: filterNumber(timing.domainLookupEnd - timing.domainLookupStart),
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pdt: filterNumber(timing.responseEnd - timing.responseStart),
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rrt: filterNumber(timing.redirectEnd - timing.redirectStart),
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tcp: filterNumber(timing.connectEnd - timing.connectStart),
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srt: filterNumber(timing.responseStart - timing.requestStart),
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dit: filterNumber(timing.domInteractive - navigationStart),
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clt: filterNumber(timing.domContentLoadedEventStart - navigationStart)
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};
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for (const key in pvData) {
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perfData[key] = pvData[key];
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}
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send("/t", perfData);
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}
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if (!navigation || navigation.type != navigation.TYPE_RELOAD) {
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// page view
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send("/p", pvData);
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// timing
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if (document.readyState == "complete") {
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sendTiming();
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} else {
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win.addEventListener("load", sendTiming);
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}
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}
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})(window, document, navigator);
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