-
Notifications
You must be signed in to change notification settings - Fork 3k
/
viewport-units-css2-001.html
234 lines (207 loc) · 5.94 KB
/
viewport-units-css2-001.html
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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
<!DOCTYPE html>
<html>
<head>
<title>CSS Values and Units Test: Checks viewport units against CSS 2.1 properties and the CSSOM</title>
<meta charset="UTF-8">
<meta name="assert" content="Testing what happens when one applies and rereads viewport unit lengths to CSS 2.1 properties that accept length values" />
<link rel="author" title="Christian Schaefer" href="mailto:schaepp@gmx.de">
<link rel="help" href="http://www.w3.org/TR/css3-values/#viewport-relative-lengths">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#div {
position: relative;
width: 50vw;
height: 10vw;
background: green;
border: 0 green solid;
font-size: 4vw;
}
#table td {
border: 1px solid green;
}
</style>
</head>
<body>
<div id="log"></div>
<p>
Checks viewport units. Also re-check with zoom in/out.
</p>
<div id="div">
Test the Web Forward!
</div>
<table id="table">
<tbody>
<tr>
<td id="td">Test</td>
<td>T</td>
<td>W</td>
<td>F</td>
</tr>
</tbody>
</table>
<script>
/* Boilerplate code */
var camelize = function (str) {
return str.replace(/\-(\w)/g, function(str, letter){
return letter.toUpperCase();
});
};
var retrieveComputedStyle = function(element,property){
var result =
document
.defaultView
.getComputedStyle(element,null)
.getPropertyValue(property);
// If there are multiple values, cut down to the first
result = result.split(' ')[0];
if(window.console) console.log('Retrieving ' + property + ' property. Result: ' + result);
return result;
}
var testit = function(element,vunit,property,expectedResult){
element.style[camelize(property)] = '0px';
element.style[camelize(property)] = lengthAmount + vunit;
if(window.console) console.log(element.nodeName.toLowerCase() + '.style.' + camelize(property) + ' = ' + lengthAmount + vunit);
var result = retrieveComputedStyle(element,property);
// Test against WebKit's getComputedStyle bug, where it does not return absolute values
// As required here: http://www.w3.org/TR/1998/REC-CSS2-19980512/cascade.html#computed-value
// If it returns a pixel value, but this value is 0px then it is considered a fail, too.
var px_result = result.search(/^[-\d\.]+px$/) !== -1 && result !== '0px' ? 'non-zero px-based value' : result;
// If browser returns pixel value, we compare against our expected pixel value
if(px_result === 'non-zero px-based value'){
test(function(){
assert_equals(Math.round(parseFloat(result.replace(/[^-\d\.]+/g,''))),expectedResult);
},vunit + ' length applied to ' + property);
}
// If not, we compare against the value we set initially
else {
test(function(){
assert_equals(result,lengthAmount + vunit);
},vunit + ' length applied to ' + property);
}
// Does the browser have a bug in getComputedStyle or not?
test(function(){
assert_equals(px_result,'non-zero px-based value');
},vunit + ' length applied to ' + property + ': getComputedStyle returns a non-zero px-based value');
element.style[camelize(property)] = '';
}
var lengthAmount = 10;
var layoutViewportWidth = document.documentElement.clientWidth;
var layoutViewportHeight = document.documentElement.clientHeight;
var viewportUnits = [
{
ident: 'vw',
expectedResult: Math.round(layoutViewportWidth * (lengthAmount / 100))
}
,{
ident: 'vh',
expectedResult: Math.round(layoutViewportHeight * (lengthAmount / 100))
}
,{
ident: 'vmin',
expectedResult: layoutViewportWidth < layoutViewportHeight ? Math.round(layoutViewportWidth * (lengthAmount / 100)) : Math.round(layoutViewportHeight * (lengthAmount / 100))
}
,{
ident: 'vmax',
expectedResult: layoutViewportWidth > layoutViewportHeight ? Math.round(layoutViewportWidth * (lengthAmount / 100)) : Math.round(layoutViewportHeight * (lengthAmount / 100))
}
]
// List of length accepting properties and which element they map to
// http://www.w3.org/TR/CSS21/propidx.html
var lengthAcceptingProperties = [
{
name: 'width',
element: 'div'
}
,{
name: 'height',
element: 'div'
}
,{
name: 'min-width',
element: 'div'
}
,{
name: 'min-height',
element: 'div'
}
,{
name: 'max-width',
element: 'div'
}
,{
name: 'max-height',
element: 'div'
}
,{
name: 'margin-top',
element: 'div'
}
,{
name: 'padding-top',
element: 'div'
}
,{
name: 'border-top-width',
element: 'div'
}
,{
name: 'font-size',
element: 'div'
}
,{
name: 'line-height',
element: 'div'
}
,{
name: 'border-spacing',
element: 'table'
}
,{
name: 'top',
element: 'div'
}
,{
name: 'right',
element: 'div'
}
,{
name: 'bottom',
element: 'div'
}
,{
name: 'left',
element: 'div'
}
,{
name: 'letter-spacing',
element: 'div'
}
,{
name: 'text-indent',
element: 'div'
}
,{
name: 'vertical-align',
element: 'td'
}
,{
name: 'word-spacing',
element: 'div'
}
];
var div = document.getElementById('div');
var table = document.getElementById('table');
var td = document.getElementById('td');
for(unitEntry in viewportUnits){
for(propertyEntry in lengthAcceptingProperties){
var vunit = viewportUnits[unitEntry].ident;
var expectedResult = viewportUnits[unitEntry].expectedResult;
var property = lengthAcceptingProperties[propertyEntry].name;
var element = window[lengthAcceptingProperties[propertyEntry].element];
testit(element,vunit,property,expectedResult);
}
}
</script>
</body>
</html>