LayoutTests/compositing/iframes/overlapped-iframe-iframe.html - WebKit - Git at Google

 <html>
 <head>
   <style type="text/css" media="screen">
     body {
         overflow: hidden;
     }

     iframe {
         position: absolute;
         top: 0px;
         left: 0px;
         height: 300px;
         width: 300px;
     }

     #overlap {
         left: 250px;
     }

     pre {
         position: absolute;
         bottom: 2000px;
         left: 0px;
     }
   </style>
   <script>
     if (window.testRunner) {
         testRunner.waitUntilDone();
         testRunner.dumpAsText();
     }

     function doTest()
     {
         // For some reason this delay is required for AppKit to not short-circuit the display which is required
         // for overlap testing to kick in.
         window.setTimeout(function() {
             if (window.testRunner) {
                 testRunner.display();
                 document.getElementById('layers').innerHTML = testRunner.layerTreeAsText();
                 testRunner.notifyDone();
             }
         }, 0);
     }

     window.addEventListener('load', doTest, false);
   </script>
 </head>
 <body>

     <iframe src="resources/composited-subframe.html"></iframe>
     <!-- this iframe should become composited because it overlaps the other iframe -->
     <iframe id="overlap" src="resources/subframe.html"></iframe>

     <pre id="layers">Layer tree appears here in DRT.</pre>
 </body>
 </html>
	<html>
	<head>
	<style type="text/css" media="screen">
	body {
	overflow: hidden;
	}

	iframe {
	position: absolute;
	top: 0px;
	left: 0px;
	height: 300px;
	width: 300px;
	}

	#overlap {
	left: 250px;
	}

	pre {
	position: absolute;
	bottom: 2000px;
	left: 0px;
	}
	</style>
	<script>
	if (window.testRunner) {
	testRunner.waitUntilDone();
	testRunner.dumpAsText();
	}

	function doTest()
	{
	// For some reason this delay is required for AppKit to not short-circuit the display which is required
	// for overlap testing to kick in.
	window.setTimeout(function() {
	if (window.testRunner) {
	testRunner.display();
	document.getElementById('layers').innerHTML = testRunner.layerTreeAsText();
	testRunner.notifyDone();
	}
	}, 0);
	}

	window.addEventListener('load', doTest, false);
	</script>
	</head>
	<body>

	<iframe src="resources/composited-subframe.html"></iframe>
	<!-- this iframe should become composited because it overlaps the other iframe -->
	<iframe id="overlap" src="resources/subframe.html"></iframe>

	<pre id="layers">Layer tree appears here in DRT.</pre>
	</body>
	</html>