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"use strict" | |
// MIT Licence a snippet to be run inside the chrome dev tools | |
// not fully working yet | |
// see https://stackoverflow.com/questions/47686564/chrome-devtools-run-snippet-to-load-pages | |
function getPerformanceTimings() | |
{ | |
var t = window.performance.timing; | |
var timings = []; | |
timings.push({ label: "navigationStart", time: t.navigationStart }); | |
timings.push({ label: "PageLoadTime", time: t.loadEventEnd - t.navigationStart }); | |
timings.push({ label: "DOMContentLoadedTime", time: t.domContentLoadedEventEnd - t.navigationStart }); | |
timings.push({ label: "ResponseTime", time: t.responseEnd - t.requestStart }); | |
timings.push({ label: "Connection", time: t.connectEnd - t.connectStart }); | |
timings.push({ label: "Response", time: t.responseEnd - t.responseStart }); | |
timings.push({ label: "DomainLookup", time: t.domainLookupEnd - t.domainLookupStart }); | |
timings.push({ label: "LoadEvent", time: t.loadEventEnd - t.loadEventStart }); | |
timings.push({ label: "UnloadEvent", time: t.unloadEventEnd - t.unloadEventStart }); | |
timings.push({ label: "DOMContentLoadedEvent", time: t.domContentLoadedEventEnd - t.domContentLoadedEventStart }); | |
// chrome.loadTimes will be removed see https://bugs.chromium.org/p/chromium/issues/detail?id=621512 | |
var lt = window.chrome && window.chrome.loadTimes && window.chrome.loadTimes(); | |
if(lt) { | |
if(lt.wasNpnNegotiated) { | |
timings.push({ label: "NPN negotiation protocol", time: lt.npnNegotiatedProtocol }); } | |
timings.push({ label: "ConnectionInfo", time: lt.connectionInfo }); | |
timings.push({ label: "FirstPaintAfterDocumentLoad", time: Math.ceil(lt.firstPaintTime - lt.finishDocumentLoadTime) }); | |
} | |
return timings; | |
} | |
function getData(method, url){ | |
return new Promise(function(resolve, reject){ | |
var xhr = new XMLHttpRequest(); | |
xhr.open(method, url); | |
xhr.onload = function(){ | |
if(this.status >= 200 && this.status < 300){ | |
resolve(xhr.response); | |
}else { | |
reject({ | |
status: this.status, | |
statusText: xhr.statusText | |
}); | |
} | |
}; | |
xhr.onerror = function(){ | |
reject({ | |
status: this.status, | |
statusText: xhr.statusText | |
}); | |
}; | |
xhr.send(); | |
}); | |
} | |
function getQuerystring(timings) | |
{ | |
let querystring = ""; | |
timings.forEach((t) => { querystring+=`${t.label}=${t.time}&`;}) | |
return querystring; | |
} | |
function getMainNavigationLinks() | |
{ | |
var links = [] | |
var list = document.querySelectorAll("div.vw-nav-main li.with-flyout a.main") | |
for (var item of list) { | |
links.push(item.href); | |
} | |
return links; | |
} | |
function loadPage(querystring){ | |
console.log("querystring: ", querystring); | |
var newURL = window.location.href + "?page=" + window.location.pathname + "&" + querystring | |
console.log("newURL:",newURL); | |
window.location.href = newURL; | |
} | |
function testPage(linkList) | |
{ | |
console.log("link", linkList[0]); | |
if(document.readyState === 'complete') | |
{ | |
let timings = getPerformanceTimings(); | |
let querystring = getQuerystring(timings); | |
// let newUrl = linkList[0]+ "?page=measure&" + querystring; | |
let newUrl = window.location.href + "?page=" + window.location.pathname +"&" + querystring; | |
console.log("newUrl", newUrl); | |
window.location.href=newUrl; | |
} | |
return linkList.splice(0, 1); | |
} | |
/* | |
function loadPage(url) { | |
return new Promise((resolve, reject) => { | |
resolve(console.log("foo resolve")); | |
reject(console.log("foo reject")); | |
}); | |
} | |
*/ | |
// window.addEventListener("load", function(event) { | |
// console.log("All resources finished loading!"); | |
// }); | |
var linkList = getMainNavigationLinks(); | |
console.log("linkList", linkList); | |
// console.log("link", linkList[0]); linkList.splice(0, 1); | |
testPage(linkList); | |
// testPage(linkList); | |
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