mirror of https://gitlab.crans.org/bde/nk20
53 lines
2.7 KiB
JavaScript
53 lines
2.7 KiB
JavaScript
(function () {
|
|
// Browser timing remains hidden unless we can successfully access the performance object
|
|
var perf = window.performance || window.msPerformance ||
|
|
window.webkitPerformance || window.mozPerformance;
|
|
if (!perf)
|
|
return;
|
|
|
|
var rowCount = 0,
|
|
timingOffset = perf.timing.navigationStart,
|
|
timingEnd = perf.timing.loadEventEnd,
|
|
totalTime = timingEnd - timingOffset;
|
|
function getLeft(stat) {
|
|
return ((perf.timing[stat] - timingOffset) / (totalTime)) * 100.0;
|
|
}
|
|
function getCSSWidth(stat, endStat) {
|
|
var width = ((perf.timing[endStat] - perf.timing[stat]) / (totalTime)) * 100.0;
|
|
// Calculate relative percent (same as sql panel logic)
|
|
width = 100.0 * width / (100.0 - getLeft(stat));
|
|
return (width < 1) ? "2px" : width + "%";
|
|
}
|
|
function addRow(stat, endStat) {
|
|
rowCount++;
|
|
var row = document.createElement('tr');
|
|
row.className = (rowCount % 2) ? 'djDebugOdd' : 'djDebugEven';
|
|
if (endStat) {
|
|
// Render a start through end bar
|
|
row.innerHTML = '<td>' + stat.replace('Start', '') + '</td>' +
|
|
'<td class="djdt-timeline"><div class="djDebugTimeline"><div class="djDebugLineChart"><strong> </strong></div></div></td>' +
|
|
'<td>' + (perf.timing[stat] - timingOffset) + ' (+' + (perf.timing[endStat] - perf.timing[stat]) + ')</td>';
|
|
row.querySelector('strong').style.width = getCSSWidth(stat, endStat);
|
|
} else {
|
|
// Render a point in time
|
|
row.innerHTML = '<td>' + stat + '</td>' +
|
|
'<td class="djdt-timeline"><div class="djDebugTimeline"><div class="djDebugLineChart"><strong> </strong></div></div></td>' +
|
|
'<td>' + (perf.timing[stat] - timingOffset) + '</td>';
|
|
row.querySelector('strong').style.width = '2px';
|
|
}
|
|
row.querySelector('.djDebugLineChart').style.left = getLeft(stat) + '%';
|
|
document.querySelector('#djDebugBrowserTimingTableBody').appendChild(row);
|
|
}
|
|
|
|
// This is a reasonably complete and ordered set of timing periods (2 params) and events (1 param)
|
|
addRow('domainLookupStart', 'domainLookupEnd');
|
|
addRow('connectStart', 'connectEnd');
|
|
addRow('requestStart', 'responseEnd'); // There is no requestEnd
|
|
addRow('responseStart', 'responseEnd');
|
|
addRow('domLoading', 'domComplete'); // Spans the events below
|
|
addRow('domInteractive');
|
|
addRow('domContentLoadedEventStart', 'domContentLoadedEventEnd');
|
|
addRow('loadEventStart', 'loadEventEnd');
|
|
document.querySelector('#djDebugBrowserTiming').classList.remove('djdt-hidden');
|
|
})();
|