third_party/WebKit/LayoutTests/compositing/iframes/connect-compositing-iframe-delayed.html

   1 <!DOCTYPE html>
   2
   3 <html>
   4 <head>
   5   <script src="../../resources/run-after-layout-and-paint.js"></script>
   6   <style type="text/css" media="screen">
   7     iframe {
   8         border: 10px solid black;
   9         padding: 5px;
  10         margin: 20px;
  11         height: 150px;
  12         width: 300px;
  13         -webkit-box-shadow: 0 0 20px black;
  14     }
  15
  16     #box {
  17       height: 100px;
  18       width: 100px;
  19       background-color: blue;
  20     }
  21
  22     .composited {
  23       transform: translateZ(0);
  24     }
  25
  26   </style>
  27   <script type="text/javascript" charset="utf-8">
  28     if (window.testRunner) {
  29         testRunner.dumpAsText();
  30         testRunner.waitUntilDone();
  31     }
  32
  33     function doTest()
  34     {
  35         runAfterLayoutAndPaint(function() {
  36             document.getElementById('box').className = 'composited';
  37             if (window.testRunner) {
  38               document.getElementById('iframe').contentDocument.body.offsetWidth; // update iframe layout
  39               document.getElementById('layers').innerText = window.internals.layerTreeAsText(document);
  40               testRunner.notifyDone();
  41             }
  42         });
  43     }
  44
  45     window.addEventListener('load', doTest, false);
  46   </script>
  47 </head>
  48 <body>
  49
  50     <div id="box"></div>
  51
  52     <!-- Test with already-composited iframe contents, and iframe itself composited. -->
  53     <iframe id="iframe" src="resources/composited-subframe.html"></iframe>
  54
  55     <p>When the parent document becomes composited, the layer trees should get connected together.</p>
  56     <pre id="layers">Layer tree appears here in DRT.</pre>
  57 </body>
  58 </html>