LayoutTests/media/video-display-toggle.html - WebKit - Git at Google

 <html>
     <head>
         <script src=media-file.js></script>
         <script>
             function toggleDisplay()
             {
                 var video = document.getElementById('vid');
                 if (video.style.display == "none") {
                     video.style.display = "inline-block";
                     video.addEventListener("seeked", done);
                     video.currentTime = 0; // so the snapshot always has the same frame
                 } else
                     video.style.display = "none";
             }
             function test()
             {
                 if (window.testRunner)
                     testRunner.waitUntilDone();
                 setSrcById('vid', findMediaFile('video', 'content/test'));
                 var video = document.getElementById('vid');
                 video.addEventListener("canplaythrough", test2);
                 video.load();
             }
             function test2()
             {
                 toggleDisplay();
                 toggleDisplay();
             }
             function done()
             {
                 if (window.testRunner)
                     testRunner.notifyDone();
             }
         </script>
     </head>
     <body onload="test()">
         This tests that toggling the display property won't make the controls disappear.<br>
         <video id="vid" controls></video>
     </body>
 </html>
	<html>
	<head>
	<script src=media-file.js></script>
	<script>
	function toggleDisplay()
	{
	var video = document.getElementById('vid');
	if (video.style.display == "none") {
	video.style.display = "inline-block";
	video.addEventListener("seeked", done);
	video.currentTime = 0; // so the snapshot always has the same frame
	} else
	video.style.display = "none";
	}
	function test()
	{
	if (window.testRunner)
	testRunner.waitUntilDone();
	setSrcById('vid', findMediaFile('video', 'content/test'));
	var video = document.getElementById('vid');
	video.addEventListener("canplaythrough", test2);
	video.load();
	}
	function test2()
	{
	toggleDisplay();
	toggleDisplay();
	}
	function done()
	{
	if (window.testRunner)
	testRunner.notifyDone();
	}
	</script>
	</head>
	<body onload="test()">
	This tests that toggling the display property won't make the controls disappear.<br>
	<video id="vid" controls></video>
	</body>
	</html>