<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../utils.js"></script>
<script>

'use strict';

function assertNoScroll()
{
    assert_equals(window.pageXOffset, 0, "The page was not scrolled in the x-axis.");
    assert_equals(window.pageYOffset, 0, "The page was not scrolled in the y-axis.");
}

target_test({ width: "200px", height: "200px" }, (target, test) => {
    document.body.style.width = "2000px";
    document.body.style.height = "2000px";

    target.style.touchAction = "pan-x";

    const overlap = document.body.insertBefore(document.createElement("div"), target.nextElementSibling);
    overlap.setAttribute("style", "position: absolute; left: 50px; top: 50px; width: 100px; height: 100px;");

    // Swipe in the y-axis over the "touch-action: pan-x" element and around the overlapping element.
    ui.swipe({ x: 25, y: 175 }, { x: 25, y: 25 }).then(assertNoScroll)
    .then(() => ui.swipe({ x: 175, y: 175 }, { x: 175, y: 25 })).then(assertNoScroll)
    // Now swipe over the overlapping element, this should scroll in both directions.
    .then(() => ui.swipe({ x: 125, y: 125 }, { x: 75, y: 75 })).then(() => {
        assert_not_equals(window.pageXOffset, 0, "The page was scrolled in the x-axis.");
        assert_not_equals(window.pageYOffset, 0, "The page was scrolled in the y-axis.");
        test.done();
    });
}, "Testing that an element overlapping an element with touch-action: pan-x allows for scrolling while the touch-action: pan-x element correctly prevents scrolling in the y-axis.");

</script>
</body>
</html>