attrs.js
1000 Bytes
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
/* @flow */
import {
isBooleanAttr,
isEnumeratedAttr,
isFalsyAttrValue
} from 'web/util/attrs'
export default function renderAttrs (node: VNodeWithData): string {
let attrs = node.data.attrs
let res = ''
let parent = node.parent
while (parent) {
if (parent.data && parent.data.attrs) {
attrs = Object.assign({}, attrs, parent.data.attrs)
}
parent = parent.parent
}
if (!attrs) {
return res
}
for (const key in attrs) {
if (key === 'style') {
// leave it to the style module
continue
}
res += renderAttr(key, attrs[key])
}
return res
}
export function renderAttr (key: string, value: string): string {
if (isBooleanAttr(key)) {
if (!isFalsyAttrValue(value)) {
return ` ${key}="${key}"`
}
} else if (isEnumeratedAttr(key)) {
return ` ${key}="${isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true'}"`
} else if (!isFalsyAttrValue(value)) {
return ` ${key}="${value}"`
}
return ''
}