third_party/WebKit/PerformanceTests/ShadowDOM/LargeDistributionWithoutLayout.html

   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 numDivsInHost = 1000;
  14 var nLoops = 30;
  15
  16 function setup()
  17 {
  18     var nDivs = numDivsInHost;
  19
  20     for (var i = 0; i < nDivs; ++i) {
  21         var div = document.createElement('div');
  22         div.appendChild(document.createTextNode('div' + i));
  23         host.appendChild(div);
  24     }
  25
  26     window.content = document.createElement('content');
  27     var shadowRoot = host.createShadowRoot();
  28     shadowRoot.appendChild(content);
  29 }
  30
  31 function run()
  32 {
  33     var host = document.getElementById('host');
  34     var content = window.content;
  35     var nLoops = window.nLoops;
  36
  37     var div = document.createElement('div');
  38     for (var i = 0; i < nLoops; ++i) {
  39         host.appendChild(div);
  40         host.removeChild(div);
  41         content.getDistributedNodes();
  42     }
  43 }
  44
  45 function done()
  46 {
  47     wrapper.innerHTML = '';
  48 }
  49
  50 setup();
  51
  52 PerfTestRunner.measureRunsPerSecond({
  53     description: "Measure Distribution (without layout time) with a lot of host children",
  54     run: run,
  55     done: done
  56 });
  57 </script>
  58 </body>
  59 </html>