blob: 53141707bb307dd13f13aee6d78ec67dffaa6576 (
plain)
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
|
<!DOCTYPE html>
<title>
Adding a new snap area when there are none should make the scroller snap to it.
</title>
<link rel="help" href="https://drafts.csswg.org/css-scroll-snap/#re-snap" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
div {
position: absolute;
margin: 0;
}
#scroller {
height: 500px;
width: 500px;
overflow: hidden;
scroll-snap-type: both mandatory;
}
#target {
width: 300px;
height: 300px;
top: 100px;
left: 100px;
background-color: green;
scroll-snap-align: start;
}
.area {
width: 2000px;
height: 2000px;
}
</style>
<div id="scroller">
<div class="area"></div>
<div id="target"></div>
</div>
<script>
const target = document.getElementById("target");
const scroller = document.getElementById("scroller");
test(() => {
scroller.removeChild(target);
scroller.scrollTo(0,0);
assert_equals(scroller.scrollTop, 0);
assert_equals(scroller.scrollLeft, 0);
scroller.appendChild(target);
assert_equals(scroller.scrollTop, 100);
assert_equals(scroller.scrollLeft, 100);
}, "Adding a new snap area when there are none should make the scroller snap to it.");
</script>
|
