LayoutTests/fast/events/hit-test-counts.html - Issue 354613002: Add test to track the number of hit tests on various events

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Issue 354613002: Add test to track the number of hit tests on various events (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Merge with trunk Created 6 years, 5 months ago

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	1 <!DOCTYPE html>

	2 <body onload=run()>
	esprehn 2014/06/26 02:33:50 Remove <body>. Remove <body>. Rick Byers 2014/06/26 15:35:18 Done. Show quoted text On 2014/06/26 02:33:50, esprehn wrote: > Remove <body>. Done.
	3 <p id=description></p>

	4 <div id='target' style='width: 10px; height: 10px'></div>

	5 <iframe id='frame' style='width: 50px; height: 50px; margin-top: 50px' scrolli ng=no

	6 src='data:text/html,<iframe width=100 height=100></iframe>'></iframe>
	esprehn 2014/06/26 02:33:50 use srcdoc, did you really want scrolling=no too? use srcdoc, did you really want scrolling=no too? Rick Byers 2014/06/26 15:35:18 done Show quoted text On 2014/06/26 02:33:50, esprehn wrote: > use srcdoc done Show quoted text > did you really want scrolling=no too? I was trying to pack things into a small space, but I can do that with more careful sizing instead. In playing with this I discovered an interesting pathological case where doing touch adjustment right near the borders of several iframes can result in a cascade of many hit tests (eg. >80 for a GestureShowPress!). I've added that as a third case to the test.
	7 <div id='console'></div>
	esprehn 2014/06/26 02:33:50 The test runner will add console and description f The test runner will add console and description for you, you don't need to add them. Rick Byers 2014/06/26 15:35:18 Done. I added console explicitly so that I could Show quoted text On 2014/06/26 02:33:50, esprehn wrote: > The test runner will add console and description for you, you don't need to add > them. Done. I added console explicitly so that I could put my test area above it (otherwise I'd have to recompute my hit test location after every log statement). I've switched to using absolute positioning of the test area instead.
	8 <script src="../../resources/js-test.js"></script>

	9 <script>

	10 description("Count how many hit tests are required for various event scenarios. Hit tests can be expensive and it's often tempting to add more. These values s hould only ever be changed to go down, not up.");

	11

	12 function logCounts(name, documents)

	13 {

	14 var msg = name + ':';

	15 for(var i = 0; i < documents.length; i++)

	16 msg += ' ' + internals.hitTestCountDelta(documents[i]);

	17 debug(msg);

	18 }

	19

	20 function clearCounts(documents)

	21 {

	22 for(var i = 0; i < documents.length; i++)

	23 internals.hitTestCountDelta(documents[i]);

	24 }

	25

	26 function sendEvents(element, documents)

	27 {

	28 var targetRect = element.getBoundingClientRect();

	29 var targetX = targetRect.left + targetRect.width / 2;

	30 var targetY = targetRect.top + targetRect.height / 2;

	31

	32 logCounts('Initial', documents);

	33

	34 eventSender.mouseMoveTo(targetX, targetY);

	35 logCounts('MouseMove', documents);

	36

	37 eventSender.mouseDown();

	38 logCounts('MouseDown', documents);

	39

	40 eventSender.mouseUp();

	41 logCounts('MouseUp', documents);

	42

	43 eventSender.mouseScrollBy(0, 5);

	44 logCounts('Wheel', documents);

	45

	46 eventSender.addTouchPoint(targetX, targetY);

	47 eventSender.touchStart();

	48 logCounts('TouchStart', documents);

	49

	50 eventSender.updateTouchPoint(0, targetX + 1, targetY);

	51 eventSender.touchMove();

	52 logCounts('TouchMove', documents);

	53

	54 eventSender.releaseTouchPoint(0);

	55 eventSender.touchEnd();

	56 logCounts('TouchEnd', documents);

	57

	58 eventSender.gestureTapDown(targetX, targetY, 30, 30);

	59 logCounts('GestureTapDown', documents);

	60

	61 eventSender.gestureShowPress(targetX, targetY, 30, 30);

	62 logCounts('GestureShowPress', documents);

	63

	64 eventSender.gestureTap(targetX, targetY);

	65 logCounts('GestureTap', documents);

	66

	67 eventSender.gestureTapDown(targetX, targetY, 30, 30);

	68 clearCounts(documents);

	69 eventSender.gestureScrollBegin(targetX, targetY);

	70 logCounts('GestureScrollBegin', documents);

	71

	72 eventSender.gestureTapCancel(targetX, targetY);

	73 logCounts('GestureTapCancel', documents);

	74

	75 eventSender.gestureScrollUpdate(0, 5);

	76 logCounts('GestureScrollUpdate', documents);

	77

	78 eventSender.gestureScrollEnd();

	79 logCounts('GestureScrollEnd', documents);

	80 }

	81

	82 function run() {
	esprehn 2014/06/26 02:33:50 onload = function() { onload = function() { Rick Byers 2014/06/26 15:35:18 Done. Show quoted text On 2014/06/26 02:33:50, esprehn wrote: > onload = function() { Done.
	83 debug('Event on a simple div');

	84 debug('---------------------');

	85 sendEvents(document.getElementById('target'), [document]);

	86 debug('');

	87

	88 debug('Event over one iframe nested in another');

	89 debug('---------------------');

	90 var frame = document.getElementById('frame');

	91 var doc2 = frame.contentDocument;

	92 var doc3 = doc2.querySelector('iframe').contentDocument;

	93 sendEvents(frame, [document, doc2, doc3]);

	94 debug('');

	95 }

	96 </script>

	97 </body>

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