LayoutTests/fast/events/wheelevent-in-reattached-frame.html - WebKit - Git at Google

 <!DOCTYPE html>

 <html>
 <head>
     <style>
     </style>
     <script src="../../resources/js-test-pre.js"></script>
     <script>
     </script>
 </head>
 <body>

     <script>
     if (window.testRunner)
         testRunner.waitUntilDone();

     description("Tests that detaching and reattaching a frame with a wheel event handlers doesn't crash.");

     const maxLoads = 10;
     var loadCount = 0;

     var frame;
     function makeFrame()
     {
         frame = document.createElement('iframe');
         frame.addEventListener('load', function() {
             if (window.internals)
                 shouldBe("internals.wheelEventHandlerCount()", "0");

             frame.remove();
             window.setTimeout(checkFrameRemoved, 0);
         });

         frame.src = 'resources/wheel-event-handler-on-document.html';
         addFrameToDocument(frame);
     }

     function checkFrameRemoved()
     {
         gc();

         if (window.internals)
             shouldBe("internals.wheelEventHandlerCount()", "0");

         if (++loadCount == maxLoads) {
             isSuccessfullyParsed();
             if (window.testRunner)
                 testRunner.notifyDone();

             return;
         }

         window.setTimeout(function() {
             addFrameToDocument(frame);
         }, 0);
     }

     function addFrameToDocument(frame)
     {
         document.body.appendChild(frame);
     }

     makeFrame();
     </script>
 </body>
 </html>
	<!DOCTYPE html>

	<html>
	<head>
	<style>
	</style>
	<script src="../../resources/js-test-pre.js"></script>
	<script>
	</script>
	</head>
	<body>

	<script>
	if (window.testRunner)
	testRunner.waitUntilDone();

	description("Tests that detaching and reattaching a frame with a wheel event handlers doesn't crash.");

	const maxLoads = 10;
	var loadCount = 0;

	var frame;
	function makeFrame()
	{
	frame = document.createElement('iframe');
	frame.addEventListener('load', function() {
	if (window.internals)
	shouldBe("internals.wheelEventHandlerCount()", "0");

	frame.remove();
	window.setTimeout(checkFrameRemoved, 0);
	});

	frame.src = 'resources/wheel-event-handler-on-document.html';
	addFrameToDocument(frame);
	}

	function checkFrameRemoved()
	{
	gc();

	if (window.internals)
	shouldBe("internals.wheelEventHandlerCount()", "0");

	if (++loadCount == maxLoads) {
	isSuccessfullyParsed();
	if (window.testRunner)
	testRunner.notifyDone();

	return;
	}

	window.setTimeout(function() {
	addFrameToDocument(frame);
	}, 0);
	}

	function addFrameToDocument(frame)
	{
	document.body.appendChild(frame);
	}

	makeFrame();
	</script>
	</body>
	</html>