gecko-dev/gfx/layers/apz/test/helper_basic_pan.html

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HTML

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width; initial-scale=1.0">
<title>Sanity panning test</title>
<script type="application/javascript" src="apz_test_native_event_utils.js"></script>
<script type="application/javascript" src="apz_test_utils.js"></script>
<script type="application/javascript">
function scrollPage() {
SpecialPowers._addMessageListener("APZ:TransformEnd", function() {
dump("Transform complete; flushing repaints...\n");
flushApzRepaints(checkScroll);
});
const TOUCH_SLOP = 1;
synthesizeNativeDrag(document.body, 10, 100, 0, -(50 + TOUCH_SLOP));
dump("Finished native drag, waiting for transform-end observer...\n");
}
function checkScroll() {
window.opener.is(window.scrollY, 50, "check that the window scrolled");
window.opener.testDone();
}
window.onload = function() {
setTimeout(scrollPage, 0);
}
</script>
</head>
<body>
<div style="height: 5000px; background-color: lightgreen;">
This div makes the page scrollable.
</div>
</body>
</html>