third_party/WebKit/LayoutTests/compositing/iframes/become-overlapped-iframe.html

   1 <!DOCTYPE html>
   2
   3 <html>
   4 <head>
   5   <style type="text/css" media="screen">
   6     iframe {
   7         border: 10px solid black;
   8         padding: 5px;
   9         margin: 50px;
  10         height: 170px;
  11         width: 320px;
  12         float: left;
  13     }
  14
  15     #overlay {
  16         position: absolute;
  17         width: 150px;
  18         height: 50px;
  19         top: 5px;
  20         left: 5px;
  21         background-color: rgba(0, 0, 0, 0.6);
  22     }
  23
  24     pre {
  25         clear: both;
  26     }
  27   </style>
  28   <script type="text/javascript" charset="utf-8">
  29     if (window.testRunner)
  30         testRunner.dumpAsText();
  31
  32     function doTest()
  33     {
  34         document.getElementById('overlay').style.height = '150px';
  35         if (window.internals) {
  36             document.getElementById('layers').innerHTML = window.internals.layerTreeAsText(document);
  37         }
  38     }
  39
  40     window.addEventListener('load', doTest, false);
  41   </script>
  42 </head>
  43 <body>
  44
  45     <!-- Test that the parent document becomes composited when the iframe becomes overlapped. -->
  46     <!-- The iframe does not start with a Layer. -->
  47     <iframe id="iframe" src="resources/composited-subframe.html"></iframe>
  48
  49     <div id="overlay">
  50     </div>
  51
  52     <pre id="layers">Layer tree appears here in DRT.</pre>
  53 </body>
  54 </html>