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#scrollableDiv {
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="scrollableDiv">
24  <div id="innerDiv">
25  </div>
26</div>
27</body>
28
29<script>
30var scrolling_div = document.getElementById('scrollableDiv');
31var horizontal_scrollend_arrived = false;
32var vertical_scrollend_arrived = false;
33function onHorizontalScrollEnd(event) {
34  assert_false(event.cancelable);
35  assert_false(event.bubbles);
36  horizontal_scrollend_arrived = true;
37}
38function onVerticalScrollEnd(event) {
39  assert_false(event.cancelable);
40  assert_false(event.bubbles);
41  vertical_scrollend_arrived = true;
42}
43scrolling_div.addEventListener("scrollend", onHorizontalScrollEnd);
44scrolling_div.addEventListener("scrollend", onVerticalScrollEnd);
45
46function runTest() {
47  promise_test (async (t) => {
48    // Make sure that no scrollend event is sent to document.
49    document.addEventListener("scrollend",
50        t.unreached_func("Document got unexpected scrollend event."));
51    await waitForCompositorCommit();
52
53    // Do a horizontal scroll and wait for scrollend event.
54    await touchScrollInTarget(300, scrolling_div, 'right');
55    await waitFor(() => { return horizontal_scrollend_arrived; },
56        'Scroller did not receive scrollend event after horizontal scroll.');
57    assert_equals(scrolling_div.scrollWidth - scrolling_div.scrollLeft,
58                scrolling_div.clientWidth);
59
60    // Do a vertical scroll and wait for scrollend event.
61    await touchScrollInTarget(300, scrolling_div, 'down');
62    await waitFor(() => { return vertical_scrollend_arrived; },
63        'Scroller did not receive scrollend event after vertical scroll.');
64    assert_equals(scrolling_div.scrollHeight - scrolling_div.scrollTop,
65                scrolling_div.clientHeight);
66  }, 'Tests that the scrolled element gets scrollend event at the end of touch scrolling.');
67}
68</script>
69