1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
<!DOCTYPE html>
<meta name="viewport" content="width=device-width,initial-scale=1">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="./resources/intersection-observer-test-utils.js"></script>
<style>
pre, #log {
position: absolute;
top: 0;
left: 200px;
}
#target {
background-color: green;
width: 100px;
height: 100px;
}
</style>
<div id="target"></div>
<script>
var vw = document.documentElement.clientWidth;
var vh = document.documentElement.clientHeight;
var entries = [];
promise_test(async function(t) {
var target = document.getElementById("target");
var root = document.getElementById("root");
var observer = new IntersectionObserver(function(changes) {
entries = entries.concat(changes)
});
observer.observe(target);
entries = entries.concat(observer.takeRecords());
assert_equals(entries.length, 0, "No initial notifications.");
await waitForNotification();
checkLastEntry(
entries,
0,
[8, 108, 8, 108, 8, 108, 8, 108, 0, vw, 0, vh, true],
);
target.style.display = "none";
await waitForNotification();
checkLastEntry(
entries,
1,
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, false],
);
target.style.display = "";
await waitForNotification();
checkLastEntry(
entries,
2,
[8, 108, 8, 108, 8, 108, 8, 108, 0, vw, 0, vh, true],
);
});
</script>
|
