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<head>
<meta name="viewport" content="width=device-width; initial-scale=1.0">
<title>Test that Direct Manipulation generated pan gesture events generate DOMMouseScroll events with reasonable line scroll amounts</title>
<script src="apz_test_native_event_utils.js"></script>
<script src="apz_test_utils.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
</head>
<body>
<script type="application/javascript">
async function test() {
let numLines = 0;
window.addEventListener("DOMMouseScroll", function (event) { numLines += event.detail; }, { passive: false });
let promise = new Promise(resolve => {
window.addEventListener("DOMMouseScroll", resolve, { passive: false });
});
await promiseApzFlushedRepaints();
await synthesizeTouchpadPan(20, 100, [0,0,0], [10,100,0], {});
await waitToClearOutAnyPotentialScrolls(window);
await promise;
info(numLines + " numLines");
ok(numLines < 10, "not too many lines");
ok(numLines > 0, "some lines");
}
waitUntilApzStable()
.then(test)
.then(subtestDone, subtestFailed);
</script>
</body>
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