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<!DOCTYPE HTML>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="scroll_support.js"></script>
<style>
#targetDiv {
width: 200px;
height: 200px;
overflow: scroll;
}
#innerDiv {
width: 400px;
height: 400px;
}
</style>
<body style="margin:0" onload=runTest()>
<div id="targetDiv">
<div id="innerDiv">
</div>
</div>
</body>
<script>
var target_div = document.getElementById('targetDiv');
var horizontal_scrollend_arrived = false;
var vertical_scrollend_arrived = false;
function onHorizontalScrollEnd(event) {
assert_false(event.cancelable);
// scrollend events are bubbled when the target node is document.
assert_true(event.bubbles);
horizontal_scrollend_arrived = true;
}
function onVerticalScrollEnd(event) {
assert_false(event.cancelable);
// scrollend events are bubbled when the target node is document.
assert_true(event.bubbles);
vertical_scrollend_arrived = true;
}
function runTest() {
promise_test (async (t) => {
// Make sure that no scrollend event is sent to target_div.
target_div.addEventListener("scrollend",
t.unreached_func("target_div got unexpected scrollend event."));
await waitForCompositorCommit();
// Scroll left on target div and wait for the doc to get scrollend event.
document.addEventListener("scrollend", onHorizontalScrollEnd);
await touchScrollInTarget(300, target_div, 'left');
await waitFor(() => { return horizontal_scrollend_arrived; },
'Document did not receive scrollend event after scroll left on target.');
assert_equals(target_div.scrollLeft, 0);
document.removeEventListener("scrollend", onHorizontalScrollEnd);
// Scroll up on target div and wait for the doc to get scrollend event.
document.addEventListener("scrollend", onVerticalScrollEnd);
await touchScrollInTarget(300, target_div, 'up');
await waitFor(() => { return vertical_scrollend_arrived; },
'Document did not receive scrollend event after scroll up on target.');
assert_equals(target_div.scrollTop, 0);
}, 'Tests that the document gets scrollend event when no element scrolls by ' +
'touch.');
}
</script>
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