Bug 1374790 - Wait until APZ is ready before sending it a wheel event. r=mats

Differential Revision: https://phabricator.services.mozilla.com/D9567

--HG--
extra : moz-landing-system : lando
This commit is contained in:
Kartikaya Gupta 2018-10-23 18:58:10 +00:00
Родитель 47bca53d01
Коммит bad6bf49d6
2 изменённых файлов: 12 добавлений и 7 удалений

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@ -17,6 +17,7 @@ support-files =
file_SlowImage.sjs
file_SlowPage.sjs
bug1174521.html
!/gfx/layers/apz/test/mochitest/apz_test_utils.js
[test_bug240933.html]
[test_bug263683.html]

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@ -5,6 +5,7 @@
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
<script src="/tests/gfx/layers/apz/test/mochitest/apz_test_utils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
@ -40,6 +41,8 @@ function doneScroll() {
outer.scrollTop = 0;
break;
case 2:
// wait until APZ is ready to handle the wheel event, then send it
waitForApzFlushedRepaints(() => {
// Wait for paints to flush, so APZ is notified of the new scroll offset.
sendWheelAndPaint(inner, 4, 4,
{ deltaMode: WheelEvent.DOM_DELTA_LINE, deltaY: 1 },
@ -47,6 +50,7 @@ function doneScroll() {
wheelAndPaintDone = true;
doneTest();
});
});
break;
case 3:
is(innerScrollOffset(), innerStartScrollOffset, "Inner element should not have scrolled down");