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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1638441
-->
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Test for Bug 1638441</title>
<script src="/tests/SimpleTest/paint_listener.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<script type="application/javascript" src="apz_test_native_event_utils.js"></script>
<script type="application/javascript" src="apz_test_utils.js"></script>
<style>
#target {
position: fixed;
bottom: 50px;
width: 100px;
height: 100px;
}
</style>
</head>
<body>
<div id="target">
<script type="application/javascript">
async function test() {
let utils = SpecialPowers.getDOMWindowUtils(window);
// Do a large visual scroll to scroll the visual viewport to the bottom
// of the layout viewport.
let visualScrollPromise = new Promise(resolve => {
window.visualViewport.addEventListener("scroll", resolve, { once: true });
});
utils.scrollToVisual(0, 900, utils.UPDATE_TYPE_MAIN_THREAD,
utils.SCROLL_MODE_INSTANT);
await visualScrollPromise;
await promiseApzFlushedRepaints();
// Tap the position-fixed element which is near the bottom of the
// layout viewport (and therefore visible now that the visual
// viewport is scrolled to the bottom of the layout viewport).
// The intention is to test that the visual-to-layout transform
// is applied correctly during the hit test.
let target = document.getElementById("target");
let mouseDownEvent = null;
let mouseDownPromise = new Promise(resolve => {
target.addEventListener("mousedown", function(e) {
mouseDownEvent = e;
resolve();
});
});
await synthesizeNativeTap(target, 10, 10);
await mouseDownPromise;
is(mouseDownEvent.target, target, "mousedown event targeted the correct element");
}
SpecialPowers.getDOMWindowUtils(window).setResolutionAndScaleTo(2.0);
waitUntilApzStable()
.then(test)
.then(subtestDone, subtestFailed);
</script>
</body>
</html>
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