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
|
<!doctype html>
<title>Table minmax tricks</title>
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<link rel="author" title="Aleks Totic" href="atotic@chromium.org" />
<link rel="help" href="https://www.w3.org/TR/css-tables-3/" />
<style>
main table {
table-layout:fixed;
width: 100%;
background: #ddd;
border-spacing: 0;
}
main td {
padding: 0;
}
</style>
<h1>Infinite intrinsic table widths</h1>
<p>Originally, algorithm for computing intrinsic table inline size had a special case: <br>
If table is fixed, and has a width:%, its intrinsic inline size was "infinite". <br>
This ensured that fixed table with 100% width inside block layout would expand to container's width. </p>
<p>Different containers do not have reasonable handling of intrinsic infinitely sized
children. For those, table's intrinsic size should never be infinite, but instead
default to regular max size.</p>
<main>
<h3>Flexbox</h3>
<p>flex width:auto</p>
<div id="flextest" style="display:flex;">
<table>
<td>flex</td>
</table>
<div style="width:98px;border:1px solid black;flex-shrink:0">flex div</div>
</div>
<p>flex width:max-content</p>
<div id="flextest_max" style="display:flex;width:max-content">
<table>
<td><div style="width:100px">flex</div></td>
</table>
<div style="width:100px;border:1px solid black;flex-shrink:0">flex div</div>
</div>
<p>flex width:min-content</p>
<div id="flextest_min1" style="display: flex; width: min-content;">
<table style="flex: 0 0 content; min-width: 0px;">
<td style="width: 100px;"></td>
</table>
</div>
<div id="flextest_min2" style="display: flex; width: min-content;">
<div style="flex: 0 0 auto; min-width: 0px;">
<table>
<td style="width: 100px;"></td>
</table>
</div>
</div>
<h3>Grid</h3>
<p>grid width:auto</p>
<div id="grid" style="display:grid;grid-template-columns: 1fr;width:auto">
<table>
<td><div style="width:100px">grid</div></td>
</table>
</div>
<p>grid width:max-content</p>
<div id="grid_max" style="display:grid;grid-template-columns: 1fr;width:max-content">
<table>
<td><div style="width:100px">grid</div></td>
</table>
</div>
<h3>Table</h3>
<table id="table_container" style="table-layout:auto;width:auto; background: #aaa;">
<tr>
<td>
<table>
<td><div style="width:100px">table</div></td>
</table>
</td>
</tr>
</table>
<h3>Absolute</h3>
<div id="absolute" style="width:400px;height:100px;outline:solid 1px green;position:relative">
<table style="position:absolute;right:0;top:0">
<td>absolute</td>
</table>
</div>
<script>
test(_ => {
let flexbox = document.querySelector("#flextest");
let table = flexbox.querySelector("table");
let div = flexbox.querySelector("div");
assert_equals(div.offsetWidth, 100);
assert_equals(flexbox.offsetWidth, document.body.offsetWidth);
assert_equals(flexbox.offsetWidth, table.offsetWidth + div.offsetWidth);
}, "table's width inside flexbox width:auto is not infinite");
test(_ => {
let flexbox = document.querySelector("#flextest_max");
let table = flexbox.querySelector("table");
assert_greater_than(table.offsetWidth, document.body.offsetWidth);
}, "table's width inside flexbox width:max-content is infinite");
test(_ => {
let flexbox = document.querySelector("#flextest_min1");
let table = flexbox.querySelector("table");
assert_equals(flexbox.offsetWidth, 100);
assert_greater_than(table.offsetWidth, document.body.offsetWidth);
}, "table's width inside flexbox width:min-content is infinite, but the flexbox is finite; scenario 1");
test(_ => {
let flexbox = document.querySelector("#flextest_min2");
let table = flexbox.querySelector("table");
assert_equals(flexbox.offsetWidth, 100);
assert_greater_than(table.offsetWidth, document.body.offsetWidth);
}, "table's width inside flexbox width:min-content is infinite, but the flexbox is finite; scenario 2");
test(_ => {
let grid = document.querySelector("#grid");
let table = grid.querySelector("table");
assert_equals(grid.offsetWidth, document.body.offsetWidth);
assert_equals(grid.offsetWidth, table.offsetWidth);
}, "table's width inside grid width:auto is not infinite");
test(_ => {
let grid = document.querySelector("#grid_max");
let table = grid.querySelector("table");
assert_greater_than(table.offsetWidth, document.body.offsetWidth);
}, "table's width inside grid width:max-content is infinite");
test(_ => {
let table = document.querySelector("#table_container");
assert_equals(table.offsetWidth, document.body.offsetWidth);
}, "table's width inside a table cell is infinite");
test(_ => {
let abs = document.querySelector("#absolute");
let table = abs.querySelector("table");
assert_equals(table.offsetWidth, abs.offsetWidth);
}, "table's width inside an absolute block is infinite");
</script>
|
