third_party/WebKit/PerformanceTests/ShadowDOM/MultipleInsertionPoints.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 = 256;
  14 var nLoops = 100;
  15 var classNames = ['A', 'B', 'C', 'D', 'E'];
  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
  25         var names = new Array();
  26         for (var j = 0; j < classNames.length; ++j) {
  27             if (i & (1 << j))
  28                 names.push(classNames[j]);
  29         }
  30         div.className = names.join(' ');
  31
  32         host.appendChild(div);
  33     }
  34
  35     var shadowRoot = host.createShadowRoot();
  36     for (var i = 0; i < classNames.length; ++i) {
  37         var content = document.createElement('content');
  38         content.setAttribute('select', '.' + classNames[i]);
  39         shadowRoot.appendChild(content);
  40     }
  41     shadowRoot.appendChild(document.createElement('content'));
  42 }
  43
  44 function run()
  45 {
  46     var host = document.getElementById('host');
  47     var nLoops = window.nLoops;
  48
  49     var div = document.createElement('div');
  50     for (var i = 0; i < nLoops; ++i) {
  51         host.appendChild(div);
  52         host.removeChild(div);
  53         PerfTestRunner.forceLayoutOrFullFrame();
  54     }
  55 }
  56
  57 function done()
  58 {
  59     wrapper.innerHTML = '';
  60 }
  61
  62
  63 setup();
  64
  65 PerfTestRunner.measureTime({
  66     description: "Measure Distribution and Layout time in a case there are multiple InsertionPoints",
  67     run: run,
  68     done: done
  69 });
  70 </script>
  71 </body>
  72 </html>