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
|
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Space</title>
<link rel="help" href="https://w3c.github.io/mathml-core/#space-mspace">
<meta name="assert" content="Verify mspace metrics for different values of height, depth and width">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
var epsilon = 1;
function getBox(aId) {
var box = document.getElementById(aId).getBoundingClientRect();
box.middle = (box.bottom + box.top) / 2;
box.center = (box.left + box.right) / 2;
return box;
}
setup({ explicit_done: true });
window.addEventListener("load", runTests);
function runTests() {
test(function() {
var empty = getBox("empty");
assert_equals(empty.width, 0, "zero width");
assert_approx_equals(getBox("baseline").bottom - empty.top, 0, epsilon, "zero depth");
assert_approx_equals(empty.bottom - getBox("baseline").bottom, 0, epsilon, "zero depth");
}, "Empty mspace");
test(function() {
for (var i = 0; i <= 2; i++) {
var space = getBox("width" + i);
assert_approx_equals(space.width, 25*(i+1), epsilon, "width " + i);
assert_approx_equals(getBox("baseline").bottom - space.top, 0, epsilon, "height" + i);
assert_approx_equals(space.bottom - getBox("baseline").bottom, 0, epsilon, "depth" + i);
}
}, "Different widths");
test(function() {
for (var i = 0; i <= 2; i++) {
var space = getBox("height" + i);
assert_equals(space.width, 0, "width" + i);
assert_approx_equals(getBox("baseline").bottom - space.top, 25*(i+1), epsilon, "height" + i);
assert_approx_equals(space.bottom - getBox("baseline").bottom, 0, epsilon, "depth" + i);
}
}, "Different heights");
test(function() {
for (var i = 0; i <= 2; i++) {
var space = getBox("depth" + i);
assert_equals(space.width, 0, "width" + i);
assert_approx_equals(getBox("baseline").bottom - space.top, 0, epsilon, "height" + i);
assert_approx_equals(space.bottom - getBox("baseline").bottom, 25*(i+1), epsilon, "depth" + i);
}
}, "Different depths");
test(function() {
for (var i = 0; i <= 2; i++) {
var space = getBox("mspace" + i);
assert_approx_equals(space.width, 25*(1+i%3), epsilon, "width" + i);
assert_approx_equals(getBox("baseline").bottom - space.top, 25*(1+(i+1)%3), epsilon, "height" + i);
assert_approx_equals(space.bottom - getBox("baseline").bottom, 25*(1+(i+2)%3), epsilon, "depth" + i);
}
}, "Various combinations of height, depth and width.");
test(function() {
var container = document.getElementById("containerForPreferredWidth");
var mspace = container.getElementsByTagName("mspace")[0];
var containerWidth = container.getBoundingClientRect().width;
var mspaceWidth = mspace.getBoundingClientRect().width;
assert_approx_equals(containerWidth, mspaceWidth, epsilon);
}, "Preferred width");
// Dynamically set attributes.
["width", "height", "depth"].forEach(function (name, index) {
document.getElementById("dynamic-remove").removeAttribute(name);
let length = `${50 + index * 10}px`;
document.getElementById("dynamic-attach").setAttribute(name, length);
document.getElementById("dynamic-modify").setAttribute(name, length);
});
let baseline = getBox("baseline2").bottom;
test(function() {
let remove = getBox("dynamic-remove");
assert_approx_equals(remove.width, 0, epsilon);
assert_approx_equals(remove.height, 0, epsilon);
assert_approx_equals(remove.top, baseline, epsilon);
}, "dynamic attributes (remove)");
test(function() {
let attach = getBox("dynamic-attach");
assert_approx_equals(attach.width, 50, epsilon);
assert_approx_equals(attach.height, 60 + 70, epsilon);
assert_approx_equals(baseline - attach.top, 60, epsilon);
}, "dynamic attributes (attach)");
test(function() {
let modify = getBox("dynamic-modify");
assert_approx_equals(modify.width, 50, epsilon);
assert_approx_equals(modify.height, 60 + 70, epsilon);
assert_approx_equals(baseline - modify.top, 60, epsilon);
}, "dynamic attributes (modify)");
done();
}
</script>
<style>
div.shrink-wrap {
background: yellow;
display: inline-block;
margin-top: 5px;
padding-top: 5px;
}
</style>
</head>
<body>
<div id="log"></div>
<p>
<span id="baseline" style="display: inline-block; width: 30px; height: 5px; background: blue"></span>
<math>
<mspace id="empty"/>
<mspace id="width0" width="25px"/>
<mspace id="width1" width="50px"/>
<mspace id="width2" width="75px"/>
<mspace id="height0" height="25px"/>
<mspace id="height1" height="50px"/>
<mspace id="height2" height="75px"/>
<mspace id="depth0" depth="25px"/>
<mspace id="depth1" depth="50px"/>
<mspace id="depth2" depth="75px"/>
<mspace id="mspace0" width="25px" height="50px" depth="75px" style="background: green"/>
<mspace id="mspace1" width="50px" height="75px" depth="25px" style="background: blue"/>
<mspace id="mspace2" width="75px" height="25px" depth="50px" style="background: green"/>
</math>
</p>
<div>
<div id="containerForPreferredWidth" class="shrink-wrap">
<math><mspace width="75px" height="25px" depth="50px" style="background: green"/></math>
</div>
</div>
<p>
<span id="baseline2" style="display: inline-block; width: 30px; height: 5px; background: blue"></span>
<math>
<mspace id="dynamic-attach" style="background: lightgreen"/>
<mspace id="dynamic-remove" width="10px" height="20px" depth="30px" style="background: lightyellow"/>
<mspace id="dynamic-modify" width="100px" height="200px" depth="300px" style="background: pink"/>
</math>
</p>
</body>
</html>
|
