third_party/WebKit/LayoutTests/compositing/iframes/scrolling-iframe.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     .overlay {
  17       position: absolute;
  18       width: 50px;
  19       height: 50px;
  20       top: 5px;
  21       left: 5px;
  22       background-color: rgba(0, 0, 0, 0.2);
  23     }
  24
  25   </style>
  26   <script type="text/javascript" charset="utf-8">
  27     if (window.testRunner) {
  28         testRunner.dumpAsText();
  29         testRunner.waitUntilDone();
  30     }
  31
  32     function doTest()
  33     {
  34         runAfterLayoutAndPaint(function() {
  35             document.getElementById('parent-iframe').contentWindow.scrollTo(80, 80);
  36             if (window.testRunner) {
  37                 document.getElementById('layers').innerHTML = window.internals.layerTreeAsText(document);
  38                 testRunner.notifyDone();
  39             }
  40         });
  41     }
  42
  43     window.addEventListener('load', doTest, false);
  44   </script>
  45 </head>
  46 <body>
  47
  48     <!-- Test scrolling in the iframe -->
  49     <iframe id="parent-iframe" src="resources/large-composited-subframe.html"></iframe>
  50
  51     <div class="overlay">
  52     </div>
  53
  54     <pre id="layers">Layer tree appears here in DRT.</pre>
  55 </body>
  56 </html>