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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
<!doctype html>
<meta charset="utf-8">
<title>CSSOM: Correct resolution of resolved value for display-affected pseudo-elements</title>
<link rel="help" href="https://drafts.csswg.org/cssom/#dom-window-getcomputedstyle">
<link rel="help" href="https://drafts.csswg.org/cssom/#resolved-values">
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<style>
#test { width: 100px; }
#contents {
display: contents;
border: 10px solid red;
}
#test::before,
#test::after,
#contents::before,
#contents::after,
#flex::before,
#flex::after {
content: " ";
width: 50%;
height: 10px;
display: block;
}
#none {
display: none;
}
#none::before,
#none::after {
content: "Foo";
}
#flex {
display: flex;
}
#flex-no-pseudo {
display: flex;
}
#contents-pseudos::before,
#contents-pseudos::after {
display: contents;
content: "foo";
position: absolute;
}
#contents-pseudos-dynamic::before,
#contents-pseudos-dynamic::after {
display: block;
content: "foo";
position: absolute;
}
#contents-pseudos-dynamic.contents::before,
#contents-pseudos-dynamic.contents::after {
display: contents;
}
</style>
<div id="test">
<div id="contents"></div>
<div id="none"></div>
<div id="flex"></div>
<div id="flex-no-pseudo"></div>
<div id="contents-pseudos"></div>
<div id="contents-pseudos-dynamic"></div>
</div>
<script>
test(function() {
var div = document.getElementById('test');
[":before", ":after"].forEach(function(pseudo) {
assert_equals(getComputedStyle(div, pseudo).width, "50px");
});
}, "Resolution of width is correct for ::before and ::after pseudo-elements");
test(function() {
var contents = document.getElementById('contents');
[":before", ":after"].forEach(function(pseudo) {
assert_equals(getComputedStyle(contents, pseudo).width, "50px");
});
}, "Resolution of width is correct for ::before and ::after pseudo-elements of display: contents elements");
test(function() {
var has_no_pseudos = document.body;
has_no_pseudos.style.position = "relative";
[":before", ":after"].forEach(function(pseudo) {
assert_equals(getComputedStyle(has_no_pseudos, pseudo).position, "static",
"Nonexistent " + pseudo + " pseudo-element shouldn't claim to have " +
"the same style as the originating element");
assert_equals(getComputedStyle(has_no_pseudos, pseudo).width, "auto",
"Nonexistent " + pseudo + " pseudo-element shouldn't claim to have " +
"definite size");
});
}, "Resolution of nonexistent pseudo-element styles");
test(function() {
var none = document.getElementById('none');
[":before", ":after"].forEach(function(pseudo) {
assert_equals(getComputedStyle(none, pseudo).content, "\"Foo\"",
"Pseudo-styles of display: none elements should be correct");
});
}, "Resolution of pseudo-element styles in display: none elements");
test(function() {
var flex = document.getElementById('flex');
[":before", ":after"].forEach(function(pseudo) {
assert_equals(getComputedStyle(flex, pseudo).display, "block",
"Pseudo-styles of display: flex elements should get blockified");
});
}, "Item-based blockification of pseudo-elements");
test(function() {
var flexNoPseudo = document.getElementById('flex-no-pseudo');
[":before", ":after"].forEach(function(pseudo) {
assert_equals(getComputedStyle(flexNoPseudo, pseudo).display, "block",
"Pseudo-styles of display: flex elements should get blockified");
});
}, "Item-based blockification of nonexistent pseudo-elements");
test(function() {
var contentsPseudos = document.getElementById('contents-pseudos');
[":before", ":after"].forEach(function(pseudo) {
assert_equals(getComputedStyle(contentsPseudos, pseudo).display, "contents",
"display: contents in " + pseudo + " should get reflected on CSSOM");
assert_equals(getComputedStyle(contentsPseudos, pseudo).width, "auto",
pseudo + " with display: contents should have no box");
assert_equals(getComputedStyle(contentsPseudos, pseudo).position, "absolute",
"display: contents in " + pseudo + " should reflect other non-inherited properties in CSSOM");
});
}, "display: contents on pseudo-elements");
test(function() {
var contentsPseudosDynamic = document.getElementById('contents-pseudos-dynamic');
[":before", ":after"].forEach(function(pseudo) {
assert_equals(getComputedStyle(contentsPseudosDynamic, pseudo).display, "block",
"Check that display for " + pseudo + " is block before change");
});
contentsPseudosDynamic.className = "contents";
[":before", ":after"].forEach(function(pseudo) {
assert_equals(getComputedStyle(contentsPseudosDynamic, pseudo).display, "contents",
"display: contents in " + pseudo + " should get reflected on CSSOM");
assert_equals(getComputedStyle(contentsPseudosDynamic, pseudo).width, "auto",
pseudo + " with display: contents should have no box");
assert_equals(getComputedStyle(contentsPseudosDynamic, pseudo).position, "absolute",
"display: contents in " + pseudo + " should reflect other non-inherited properties in CSSOM");
});
}, "Dynamically change to display: contents on pseudo-elements");
test(function() {
var div = document.getElementById('test');
// Note that these assertions deliberately avoid assert_[not_]equals to
// avoid gCS().length in the failure output.
assert_true(
getComputedStyle(div, "totallynotapseudo").length != 0,
"Should return the element's style for unknown pseudo-elements that don't start with a colon");
assert_true(
getComputedStyle(div, "::totallynotapseudo").length == 0,
"Should return an empty style for unknown pseudo-elements starting with double-colon");
assert_true(
getComputedStyle(div, ":totallynotapseudo").length == 0,
"Should return an empty style for unknown pseudo-elements starting with colon");
}, "Unknown pseudo-elements");
</script>
|
