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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
<!doctype HTML>
<html>
<meta charset="utf8">
<title>Content Visibility: ContentVisibilityAutoStateChange event.</title>
<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility">
<meta name="timeout" content="long">
<meta name="assert" content="ContentVisibilityAutoStateChange fires when things enter/exit viewport">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/common/rendering-utils.js"></script>
<script src="/common/utils.js"></script>
<script src="/scroll-to-text-fragment/stash.js"></script>
<style>
.spacer {
height: 3000px;
}
.auto { content-visibility: auto; }
</style>
<script>
let contentattrfired = false;
let contentattrfiredonsvg = false;
function contentattrDidFire() {
contentattrfired = true;
}
function contentattrDidFireOnSvg() {
contentattrfiredonsvg = true;
}
</script>
<div id=upper></div>
<div id=attrtest></div>
<div id=contentattrtest oncontentvisibilityautostatechange="contentattrDidFire()" class=auto></div>
<svg id="svgcontentattrtest" oncontentvisibilityautostatechange="contentattrDidFireOnSvg()" class="auto"></svg>
<div class=spacer></div>
<div id=middle></div>
<div class=spacer></div>
<div id=lower></div>
<script>
promise_test(t => new Promise(async (resolve, reject) => {
let shouldSkip = false;
const listener = (e) => {
if (!e.skipped)
resolve();
};
upper.addEventListener("contentvisibilityautostatechange", listener);
t.add_cleanup(() => upper.removeEventListener("contentvisibilityautostatechange", listener));
upper.classList.add("auto");
}), "ContentVisibilityAutoStateChange fires when relevant element gains `content-visibility:auto`");
promise_test(t => new Promise(async (resolve, reject) => {
let shouldSkip = false;
const listener = (e) => {
if (!e.skipped)
resolve();
};
attrtest.oncontentvisibilityautostatechange = listener;
t.add_cleanup(() => { attrtest.oncontentvisibilityautostatechange = null });
attrtest.classList.add("auto");
}), "ContentVisibilityAutoStateChange fires when relevant element gains `content-visibility:auto` (oncontentvisibilityautostatechange syntax)");
promise_test(t => new Promise(async (resolve, reject) => {
let shouldSkip = false;
const listener = (e) => {
if (e.skipped)
resolve();
else
reject();
};
lower.addEventListener("contentvisibilityautostatechange", listener);
t.add_cleanup(() => lower.removeEventListener("contentvisibilityautostatechange", listener));
lower.classList.add("auto");
}), "ContentVisibilityAutoStateChange fires when not relevant element gains `content-visibility:auto`");
promise_test(async t => {
await waitForAtLeastOneFrame();
assert_true(contentattrfired, "contentattrfired");
}, "ContentVisibilityAutoStateChange content attribute test");
promise_test(async t => {
await waitForAtLeastOneFrame();
assert_true(contentattrfiredonsvg, "contentattrfiredonsvg");
}, "ContentVisibilityAutoStateChange content attribute test on svg");
promise_test(t => new Promise(async (resolve, reject) => {
await new Promise((waited, _) => {
requestAnimationFrame(() => requestAnimationFrame(waited));
});
const listener = (e) => {
if (e.skipped)
resolve();
};
upper.addEventListener("contentvisibilityautostatechange", listener);
t.add_cleanup(() => upper.removeEventListener("contentvisibilityautostatechange", listener));
requestAnimationFrame(() => requestAnimationFrame(() => {
middle.scrollIntoView();
}));
}), "ContentVisibilityAutoStateChange fires when skipped");
promise_test(t => new Promise(async (resolve, reject) => {
await new Promise((waited, _) => {
requestAnimationFrame(() => requestAnimationFrame(waited));
});
const listener = (e) => {
if (!e.skipped)
resolve();
else
reject();
}
lower.addEventListener("contentvisibilityautostatechange", listener);
t.add_cleanup(() => {
lower.removeEventListener("contentvisibilityautostatechange", listener);
});
requestAnimationFrame(() => requestAnimationFrame(() => {
lower.scrollIntoView();
}));
}), "ContentVisibilityAutoStateChange fires when not skipped");
</script>
|
