1 <!DOCTYPE html> 2 <html> 3 <head> 4 <script type="text/javascript" src="../resources/runner.js"></script> 5 </head> 6 <body> 7 8 <div id="wrapper"> 9 <div id="host"></div> 10 </div> 11 12 <script> 13 var numShadowRoots = 20; 14 var numDivsInHost = 10; 15 var nLoops = 300; 16 17 function setup() 18 { 19 var nDivs = numDivsInHost; 20 21 for (var i = 0; i < nDivs; ++i) { 22 var div = document.createElement('div'); 23 div.appendChild(document.createTextNode('div' + i)); 24 host.appendChild(div); 25 } 26 27 for (var i = 0; i < numShadowRoots; ++i) { 28 var shadow = document.createElement('shadow'); 29 var content = document.createElement('content'); 30 shadow.appendChild(content); 31 var shadowRoot = host.webkitCreateShadowRoot(); 32 shadowRoot.appendChild(shadow); 33 } 34 } 35 36 function run() 37 { 38 var host = document.getElementById('host'); 39 var nLoops = window.nLoops; 40 41 var div = document.createElement('div'); 42 for (var i = 0; i < nLoops; ++i) { 43 host.appendChild(div); 44 host.removeChild(div); 45 host.offsetLeft; 46 } 47 } 48 49 function done() 50 { 51 wrapper.innerHTML = ''; 52 } 53 54 55 setup(); 56 57 PerfTestRunner.measureTime({ 58 description: "Measure Distribution and Layout time in a case there are multiple ShadowRoots", 59 run: run, 60 done: done 61 }); 62 </script> 63 </body> 64 </html> 65
