5 lines
4.9 KiB
JavaScript
5 lines
4.9 KiB
JavaScript
/* Thanks Nic Jansma https://github.com/nicjansma/usertiming.js */
|
|
/*! usertiming v0.1.6 */
|
|
|
|
!function(a){"use strict";"undefined"==typeof a&&(a={}),"undefined"==typeof a.performance&&(a.performance={}),a._perfRefForUserTimingPolyfill=a.performance,a.performance.userTimingJsNow=!1,a.performance.userTimingJsNowPrefixed=!1,a.performance.userTimingJsUserTiming=!1,a.performance.userTimingJsUserTimingPrefixed=!1,a.performance.userTimingJsPerformanceTimeline=!1,a.performance.userTimingJsPerformanceTimelinePrefixed=!1;var b,c,d=[],e=[],f=null;if("function"!=typeof a.performance.now){for(a.performance.userTimingJsNow=!0,e=["webkitNow","msNow","mozNow"],b=0;b<e.length;b++)if("function"==typeof a.performance[e[b]]){a.performance.now=a.performance[e[b]],a.performance.userTimingJsNowPrefixed=!0;break}var g=+new Date;a.performance.timing&&a.performance.timing.navigationStart&&(g=a.performance.timing.navigationStart),"function"!=typeof a.performance.now&&(a.performance.now=Date.now?function(){return Date.now()-g}:function(){return+new Date-g})}var h=function(){},i=function(){},j=[],k=!1,l=!1;if("function"!=typeof a.performance.getEntries||"function"!=typeof a.performance.mark){for("function"==typeof a.performance.getEntries&&"function"!=typeof a.performance.mark&&(l=!0),a.performance.userTimingJsPerformanceTimeline=!0,d=["webkit","moz"],e=["getEntries","getEntriesByName","getEntriesByType"],b=0;b<e.length;b++)for(c=0;c<d.length;c++)f=d[c]+e[b].substr(0,1).toUpperCase()+e[b].substr(1),"function"==typeof a.performance[f]&&(a.performance[e[b]]=a.performance[f],a.performance.userTimingJsPerformanceTimelinePrefixed=!0);h=function(a){j.push(a),"measure"===a.entryType&&(k=!0)};var m=function(){k&&(j.sort(function(a,b){return a.startTime-b.startTime}),k=!1)};if(i=function(a,c){for(b=0;b<j.length;)j[b].entryType===a&&("undefined"==typeof c||j[b].name===c)?j.splice(b,1):b++},"function"!=typeof a.performance.getEntries||l){var n=a.performance.getEntries;a.performance.getEntries=function(){m();var b=j.slice(0);return l&&n&&(Array.prototype.push.apply(b,n.call(a.performance)),b.sort(function(a,b){return a.startTime-b.startTime})),b}}if("function"!=typeof a.performance.getEntriesByType||l){var o=a.performance.getEntriesByType;a.performance.getEntriesByType=function(c){if("undefined"==typeof c||"mark"!==c&&"measure"!==c)return l&&o?o.call(a.performance,c):[];"measure"===c&&m();var d=[];for(b=0;b<j.length;b++)j[b].entryType===c&&d.push(j[b]);return d}}if("function"!=typeof a.performance.getEntriesByName||l){var p=a.performance.getEntriesByName;a.performance.getEntriesByName=function(c,d){if(d&&"mark"!==d&&"measure"!==d)return l&&p?p.call(a.performance,c,d):[];"undefined"!=typeof d&&"measure"===d&&m();var e=[];for(b=0;b<j.length;b++)("undefined"==typeof d||j[b].entryType===d)&&j[b].name===c&&e.push(j[b]);return l&&p&&(Array.prototype.push.apply(e,p.call(a.performance,c,d)),e.sort(function(a,b){return a.startTime-b.startTime})),e}}}if("function"!=typeof a.performance.mark){for(a.performance.userTimingJsUserTiming=!0,d=["webkit","moz","ms"],e=["mark","measure","clearMarks","clearMeasures"],b=0;b<e.length;b++)for(c=0;c<d.length;c++)f=d[c]+e[b].substr(0,1).toUpperCase()+e[b].substr(1),"function"==typeof a.performance[f]&&(a.performance[e[b]]=a.performance[f],a.performance.userTimingJsUserTimingPrefixed=!0);var q={};"function"!=typeof a.performance.mark&&(a.performance.mark=function(b){var c=a.performance.now();if("undefined"==typeof b)throw new SyntaxError("Mark name must be specified");if(a.performance.timing&&b in a.performance.timing)throw new SyntaxError("Mark name is not allowed");q[b]||(q[b]=[]),q[b].push(c),h({entryType:"mark",name:b,startTime:c,duration:0})}),"function"!=typeof a.performance.clearMarks&&(a.performance.clearMarks=function(a){a?q[a]=[]:q={},i("mark",a)}),"function"!=typeof a.performance.measure&&(a.performance.measure=function(b,c,d){var e=a.performance.now();if("undefined"==typeof b)throw new SyntaxError("Measure must be specified");if(!c)return void h({entryType:"measure",name:b,startTime:0,duration:e});var f=0;if(a.performance.timing&&c in a.performance.timing){if("navigationStart"!==c&&0===a.performance.timing[c])throw new Error(c+" has a timing of 0");f=a.performance.timing[c]-a.performance.timing.navigationStart}else{if(!(c in q))throw new Error(c+" mark not found");f=q[c][q[c].length-1]}var g=e;if(d)if(g=0,a.performance.timing&&d in a.performance.timing){if("navigationStart"!==d&&0===a.performance.timing[d])throw new Error(d+" has a timing of 0");g=a.performance.timing[d]-a.performance.timing.navigationStart}else{if(!(d in q))throw new Error(d+" mark not found");g=q[d][q[d].length-1]}var i=g-f;h({entryType:"measure",name:b,startTime:f,duration:i})}),"function"!=typeof a.performance.clearMeasures&&(a.performance.clearMeasures=function(a){i("measure",a)})}"undefined"!=typeof define&&define.amd?define([],function(){return a.performance}):"undefined"!=typeof module&&"undefined"!=typeof module.exports&&(module.exports=a.performance)}("undefined"!=typeof window?window:void 0);
|