blob: 82d0e9af1db9383621843f5f1a51e7485073e5bb (
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
|
<!DOCTYPE html>
<title>position:sticky elements should respect the right constraint</title>
<link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos" />
<meta name="assert" content="This test checks that position:sticky elements obey their right anchor after scrolling" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../resources/sticky-util.js"></script>
<body></body>
<script>
test(() => {
const elements = setupStickyTest('right', 25);
elements.scroller.scrollLeft = 200;
const nonStickyLeftX = elements.container.offsetLeft +
elements.filler.clientWidth;
assert_equals(elements.sticky.offsetLeft, nonStickyLeftX);
}, 'before reaching the sticking point the sticky box should not be offset');
test(() => {
const elements = setupStickyTest('right', 25);
elements.scroller.scrollLeft = 75;
const nonStickyLeftX = elements.container.offsetLeft +
elements.filler.clientWidth;
const nonStickyRightX = nonStickyLeftX + elements.sticky.clientWidth;
const targetRightX = elements.scroller.clientWidth +
elements.scroller.scrollLeft - 25;
const stickyOffset = nonStickyRightX - targetRightX;
assert_equals(elements.sticky.offsetLeft, nonStickyLeftX - stickyOffset);
}, 'after reaching the sticking point the sticky box should be offset');
test(() => {
const elements = setupStickyTest('right', 25);
elements.scroller.scrollLeft = 15;
assert_equals(elements.sticky.offsetLeft, elements.container.offsetLeft);
}, 'the sticky box should not be pushed outside its containing block');
</script>
|
