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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=2100"/>
<title>Check that double tapping when the page is overflow hidden and has been scrolled down by js works</title>
<script type="application/javascript" src="apz_test_native_event_utils.js"></script>
<script type="application/javascript" src="apz_test_utils.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
<script type="application/javascript">
async function test() {
let useTouchpad = (location.search == "?touchpad");
var resolution = await getResolution();
ok(resolution > 0,
"The initial_resolution is " + resolution + ", which is some sane value");
// instant scroll down
window.scrollTo({
top: window.innerHeight * 2 - 50,
left: 0,
behavior: 'auto'
});
await promiseApzFlushedRepaints();
let scrollPos = window.scrollY;
ok(scrollPos > window.innerHeight + 100, "window scrolled down");
info("window.scrollY " + window.scrollY);
info("window.innerHeight " + window.innerHeight);
info("document.documentElement.scrollHeight " + document.documentElement.scrollHeight);
let target = document.getElementById("target");
// Check that double-tapping once zooms in
info("sending double tap");
await doubleTapOn(target, 10, 10, useTouchpad);
var prev_resolution = resolution;
resolution = await getResolution();
ok(resolution > prev_resolution, "The first double-tap has increased the resolution to " + resolution);
ok(window.scrollY > window.innerHeight + 100, "window is still scrolled down");
ok(Math.abs(window.scrollY - scrollPos) < 2, "window didnt scroll");
info("window.scrollY " + window.scrollY);
}
waitUntilApzStable()
.then(test)
.then(subtestDone, subtestFailed);
</script>
<style>
html, body {
overflow: hidden;
}
.spacer {
background-color: #eee;
height: 200vh;
}
.rect {
background-color: #aaa;
width: 100px;
height: 100px;
}
</style>
</head>
<body>
<div class="spacer">
</div>
<div id="target" class="rect">
</div>
<div class="spacer">
</div>
</body>
</html>
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