-
-
Notifications
You must be signed in to change notification settings - Fork 8.3k
/
ssrInjectCssVars.ts
69 lines (64 loc) · 1.57 KB
/
ssrInjectCssVars.ts
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
import {
NodeTransform,
NodeTypes,
ElementTypes,
locStub,
createSimpleExpression,
RootNode,
TemplateChildNode,
findDir,
isBuiltInType
} from '@vue/compiler-dom'
export const ssrInjectCssVars: NodeTransform = (node, context) => {
if (!context.ssrCssVars) {
return
}
// _cssVars is initialized once per render function
// the code is injected in ssrCodegenTransform when creating the
// ssr transform context
if (node.type === NodeTypes.ROOT) {
context.identifiers._cssVars = 1
}
const parent = context.parent
if (!parent || parent.type !== NodeTypes.ROOT) {
return
}
if (node.type === NodeTypes.IF_BRANCH) {
for (const child of node.children) {
injectCssVars(child)
}
} else {
injectCssVars(node)
}
}
function injectCssVars(node: RootNode | TemplateChildNode) {
if (
node.type === NodeTypes.ELEMENT &&
(node.tagType === ElementTypes.ELEMENT ||
node.tagType === ElementTypes.COMPONENT) &&
!findDir(node, 'for')
) {
if (isBuiltInType(node.tag, 'Suspense')) {
for (const child of node.children) {
if (
child.type === NodeTypes.ELEMENT &&
child.tagType === ElementTypes.TEMPLATE
) {
// suspense slot
child.children.forEach(injectCssVars)
} else {
injectCssVars(child)
}
}
} else {
node.props.push({
type: NodeTypes.DIRECTIVE,
name: 'bind',
arg: undefined,
exp: createSimpleExpression(`_cssVars`, false),
modifiers: [],
loc: locStub
})
}
}
}