1<!DOCTYPE HTML>
2<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1">
3<script src="/resources/testharness.js"></script>
4<script src="/resources/testharnessreport.js"></script>
5<script src="/resources/testdriver.js"></script>
6<script src="/resources/testdriver-actions.js"></script>
7<script src="/resources/testdriver-vendor.js"></script>
8<script src="scroll_support.js"></script>
9<style>
10#targetDiv {
11  width: 200px;
12  height: 200px;
13  overflow: scroll;
14}
15
16#innerDiv {
17  width: 400px;
18  height: 400px;
19}
20</style>
21
22<body style="margin:0" onload=runTest()>
23<div id="targetDiv">
24  <div id="innerDiv">
25  </div>
26</div>
27</body>
28
29<script>
30var target_div = document.getElementById('targetDiv');
31var horizontal_scrollend_arrived = false;
32var vertical_scrollend_arrived = false;
33function onHorizontalScrollEnd(event) {
34  assert_false(event.cancelable);
35  // scrollend events are bubbled when the target node is document.
36  assert_true(event.bubbles);
37  horizontal_scrollend_arrived = true;
38}
39function onVerticalScrollEnd(event) {
40  assert_false(event.cancelable);
41  // scrollend events are bubbled when the target node is document.
42  assert_true(event.bubbles);
43  vertical_scrollend_arrived = true;
44}
45
46function runTest() {
47  promise_test (async (t) => {
48    // Make sure that no scrollend event is sent to target_div.
49    target_div.addEventListener("scrollend",
50        t.unreached_func("target_div got unexpected scrollend event."));
51    await waitForCompositorCommit();
52
53    // Scroll left on target div and wait for the doc to get scrollend event.
54    document.addEventListener("scrollend", onHorizontalScrollEnd);
55    await touchScrollInTarget(300, target_div, 'left');
56    await waitFor(() => { return horizontal_scrollend_arrived; },
57        'Document did not receive scrollend event after scroll left on target.');
58    assert_equals(target_div.scrollLeft, 0);
59    document.removeEventListener("scrollend", onHorizontalScrollEnd);
60
61    // Scroll up on target div and wait for the doc to get scrollend event.
62    document.addEventListener("scrollend", onVerticalScrollEnd);
63    await touchScrollInTarget(300, target_div, 'up');
64    await waitFor(() => { return vertical_scrollend_arrived; },
65        'Document did not receive scrollend event after scroll up on target.');
66    assert_equals(target_div.scrollTop, 0);
67  }, 'Tests that the document gets scrollend event when no element scrolls by ' +
68     'touch.');
69}
70</script>
71