blob: eee85f06f09ab483f55a63919d7bbad4d8780501 [file] [log] [blame]
<!DOCTYPE html>
<html>
<head>
<style>
body {
height: 2000px;
}
#scroller {
width: 300px;
height: 300px;
overflow-x: hidden;
overflow-y: auto;
margin: 20px;
scroll-snap-type: y mandatory;
}
#scroller > div {
height: 100%;
width: 100%;
scroll-snap-align: start;
}
</style>
<script src="../../../resources/js-test.js"></script>
<script>
jsTestIsAsync = true;
var targetScroller;
function checkEndState()
{
shouldBe('targetScroller.scrollTop', 'targetScroller.clientHeight');
shouldBe('document.scrollingElement.scrollTop', '0');
finishJSTest();
}
function scrollTest()
{
targetScroller = document.getElementById('scroller');
var targetRect = targetScroller.getBoundingClientRect();
var dx = 0;
var dy = -1;
var startPosX = targetRect.left + 50;
var startPosY = targetRect.top + 50;
eventSender.monitorWheelEvents();
eventSender.mouseMoveTo(startPosX, startPosY);
eventSender.mouseScrollByWithWheelAndMomentumPhases(dx, dy, 'began', 'none');
eventSender.mouseScrollByWithWheelAndMomentumPhases(dx, dy, 'changed', 'none');
eventSender.mouseScrollByWithWheelAndMomentumPhases(dx, dy, 'changed', 'none');
eventSender.mouseScrollByWithWheelAndMomentumPhases(dx, dy, 'changed', 'none');
eventSender.mouseScrollByWithWheelAndMomentumPhases(0, 0, 'ended', 'none');
eventSender.mouseScrollByWithWheelAndMomentumPhases(dx, dy, 'none', 'begin');
eventSender.mouseScrollByWithWheelAndMomentumPhases(dx, dy, 'none', 'continue');
eventSender.mouseScrollByWithWheelAndMomentumPhases(0, 0, 'none', 'end');
eventSender.callAfterScrollingCompletes(checkEndState);
}
function startTest()
{
description('Tests that latching is not recomputed between the scroll and momentum phases, which triggers a document scroll.');
if (window.eventSender) {
internals.setPlatformMomentumScrollingPredictionEnabled(false);
setTimeout(scrollTest, 0);
return;
}
debug('This test requires eventSender');
finishJSTest();
}
window.addEventListener('load', startTest, false);
</script>
</head>
<body>
<div id="scroller">
<div style="background-color: orange"></div>
<div style="background-color: green"></div>
<div style="background-color: blue"></div>
<div style="background-color: aqua"></div>
<div style="background-color: yellow"></div>
<div style="background-color: fuchsia"></div>
</div>
<div id="console"></div>
</body>
</html>