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
66
67
68
69
|
<!DOCTYPE html>
<head>
<title>Shadow DOM: Element.attachShadow with ShadowRoot</title>
<meta name="author" title="Jesse Jurman" href="mailto:j.r.jurman@gmail.com">
<meta name="assert" content="It should be possible to use an existing ShadowRoot as input for Element.attachShadow">
<link rel=help href="https://bugs.webkit.org/show_bug.cgi?id=295174">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
</head>
<body>
<div id="elementSource">
<span>
<template shadowrootmode="open"></template>
</span>
</div>
<div id="elementTarget"></div>
<template id="templateSource">
<span>
<template shadowrootmode="open"></template>
</span>
</template>
<div id="templateTarget"></div>
</body>
<script>
'use strict';
// test that we can use a ShadowRoot as an input for attachShadow
promise_test(async () => {
const shadowRoot = elementSource.children[0].shadowRoot;
// validate that the ShadowRoot is an object, and has properties we expect (like "mode")
assert_equals(typeof shadowRoot, 'object');
assert_equals(shadowRoot.mode, 'open');
// attach the shadowRoot to our target element
elementTarget.attachShadow(shadowRoot);
// validate that our target element has a shadowRoot with the same options
assert_equals(typeof elementTarget.shadowRoot, 'object');
assert_equals(elementTarget.shadowRoot.mode, 'open');
}, 'can use ShadowRoot as options for attachShadow');
// test that we can use a ShadowRoot in a template element as an input for attachShadow
promise_test(async () => {
const shadowRoot = templateSource.content.children[0].shadowRoot;
// validate that the ShadowRoot is an object, and has properties we expect (like "mode")
assert_equals(typeof shadowRoot, 'object');
assert_equals(shadowRoot.mode, 'open');
// attach the shadowRoot to our target element
templateTarget.attachShadow(shadowRoot);
// validate that our target element has a shadowRoot with the same options
assert_equals(typeof templateTarget.shadowRoot, 'object');
assert_equals(templateTarget.shadowRoot.mode, 'open');
}, 'can use ShadowRoot in document fragment as options for attachShadow');
</script>
|
