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
|
<!DOCTYPE html>
<link rel="author" href="mailto:rbuis@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
body {
margin: 0;
padding: 0;
}
#container {
content-visibility:hidden;
}
</style>
<div id="container">
<svg xmlns="http://www.w3.org/2000/svg">
<text transform="scale(2, 2)"><tspan id="tspan1" x="50 150 100" y="100">abc</tspan></text>
</svg>
</div>
<script>
test(() => {
const element = document.querySelector('#tspan1');
assert_greater_than(element.getComputedTextLength(), 0);
}, `getComputedTextLength() should return nonzero values in a c-v:hidden subtree.`);
test(() => {
const element = document.querySelector('#tspan1');
assert_greater_than(element.getCharNumAtPosition(new DOMPoint(51, 101), 0), -1, "position");
}, `getCharNumAtPosition() should return nonzero values in a c-v:hidden subtree.`);
test(() => {
const element = document.querySelector('#tspan1');
assert_equals(element.getNumberOfChars(), 3);
}, `getNumberOfChars() should return nonzero values in a c-v:hidden subtree.`);
test(() => {
const element = document.querySelector('#tspan1');
const ctm = element.getCTM();
assert_equals(ctm.a, 2, 'a');
assert_equals(ctm.b, 0, 'b');
assert_equals(ctm.c, 0, 'c');
assert_equals(ctm.d, 2, 'd');
assert_equals(ctm.e, 0, 'e');
assert_equals(ctm.f, 0, 'f');
}, `getCTM() should return nonzero values in a c-v:hidden subtree.`);
test(() => {
const element = document.querySelector('#tspan1');
const ctm = element.getScreenCTM();
assert_equals(ctm.a, 2, 'a');
assert_equals(ctm.b, 0, 'b');
assert_equals(ctm.c, 0, 'c');
assert_equals(ctm.d, 2, 'd');
assert_equals(ctm.e, 0, 'e');
assert_equals(ctm.f, 0, 'f');
}, `getScreenCTM() should return nonzero values in a c-v:hidden subtree.`);
</script>
|
