-
-
Notifications
You must be signed in to change notification settings - Fork 7.9k
/
pluginScoped.ts
223 lines (207 loc) 路 6.61 KB
/
pluginScoped.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
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
import type { AtRule, PluginCreator, Rule } from 'postcss'
import selectorParser from 'postcss-selector-parser'
import { warn } from '../warn'
const animationNameRE = /^(-\w+-)?animation-name$/
const animationRE = /^(-\w+-)?animation$/
const scopedPlugin: PluginCreator<string> = (id = '') => {
const keyframes = Object.create(null)
const shortId = id.replace(/^data-v-/, '')
return {
postcssPlugin: 'vue-sfc-scoped',
Rule(rule) {
processRule(id, rule)
},
AtRule(node) {
if (
/-?keyframes$/.test(node.name) &&
!node.params.endsWith(`-${shortId}`)
) {
// register keyframes
keyframes[node.params] = node.params = node.params + '-' + shortId
}
},
OnceExit(root) {
if (Object.keys(keyframes).length) {
// If keyframes are found in this <style>, find and rewrite animation names
// in declarations.
// Caveat: this only works for keyframes and animation rules in the same
// <style> element.
// individual animation-name declaration
root.walkDecls(decl => {
if (animationNameRE.test(decl.prop)) {
decl.value = decl.value
.split(',')
.map(v => keyframes[v.trim()] || v.trim())
.join(',')
}
// shorthand
if (animationRE.test(decl.prop)) {
decl.value = decl.value
.split(',')
.map(v => {
const vals = v.trim().split(/\s+/)
const i = vals.findIndex(val => keyframes[val])
if (i !== -1) {
vals.splice(i, 1, keyframes[vals[i]])
return vals.join(' ')
} else {
return v
}
})
.join(',')
}
})
}
},
}
}
const processedRules = new WeakSet<Rule>()
function processRule(id: string, rule: Rule) {
if (
processedRules.has(rule) ||
(rule.parent &&
rule.parent.type === 'atrule' &&
/-?keyframes$/.test((rule.parent as AtRule).name))
) {
return
}
processedRules.add(rule)
rule.selector = selectorParser(selectorRoot => {
selectorRoot.each(selector => {
rewriteSelector(id, selector, selectorRoot)
})
}).processSync(rule.selector)
}
function rewriteSelector(
id: string,
selector: selectorParser.Selector,
selectorRoot: selectorParser.Root,
slotted = false,
) {
let node: selectorParser.Node | null = null
let shouldInject = true
// find the last child node to insert attribute selector
selector.each(n => {
// DEPRECATED ">>>" and "/deep/" combinator
if (
n.type === 'combinator' &&
(n.value === '>>>' || n.value === '/deep/')
) {
n.value = ' '
n.spaces.before = n.spaces.after = ''
warn(
`the >>> and /deep/ combinators have been deprecated. ` +
`Use :deep() instead.`,
)
return false
}
if (n.type === 'pseudo') {
const { value } = n
// deep: inject [id] attribute at the node before the ::v-deep
// combinator.
if (value === ':deep' || value === '::v-deep') {
if (n.nodes.length) {
// .foo ::v-deep(.bar) -> .foo[xxxxxxx] .bar
// replace the current node with ::v-deep's inner selector
let last: selectorParser.Selector['nodes'][0] = n
n.nodes[0].each(ss => {
selector.insertAfter(last, ss)
last = ss
})
// insert a space combinator before if it doesn't already have one
const prev = selector.at(selector.index(n) - 1)
if (!prev || !isSpaceCombinator(prev)) {
selector.insertAfter(
n,
selectorParser.combinator({
value: ' ',
}),
)
}
selector.removeChild(n)
} else {
// DEPRECATED usage
// .foo ::v-deep .bar -> .foo[xxxxxxx] .bar
warn(
`${value} usage as a combinator has been deprecated. ` +
`Use :deep(<inner-selector>) instead of ${value} <inner-selector>.`,
)
const prev = selector.at(selector.index(n) - 1)
if (prev && isSpaceCombinator(prev)) {
selector.removeChild(prev)
}
selector.removeChild(n)
}
return false
}
// slot: use selector inside `::v-slotted` and inject [id + '-s']
// instead.
// ::v-slotted(.foo) -> .foo[xxxxxxx-s]
if (value === ':slotted' || value === '::v-slotted') {
rewriteSelector(id, n.nodes[0], selectorRoot, true /* slotted */)
let last: selectorParser.Selector['nodes'][0] = n
n.nodes[0].each(ss => {
selector.insertAfter(last, ss)
last = ss
})
// selector.insertAfter(n, n.nodes[0])
selector.removeChild(n)
// since slotted attribute already scopes the selector there's no
// need for the non-slot attribute.
shouldInject = false
return false
}
// global: replace with inner selector and do not inject [id].
// ::v-global(.foo) -> .foo
if (value === ':global' || value === '::v-global') {
selectorRoot.insertAfter(selector, n.nodes[0])
selectorRoot.removeChild(selector)
return false
}
}
if (
(n.type !== 'pseudo' && n.type !== 'combinator') ||
(n.type === 'pseudo' &&
(n.value === ':is' || n.value === ':where') &&
!node)
) {
node = n
}
})
if (node) {
const { type, value } = node as selectorParser.Node
if (type === 'pseudo' && (value === ':is' || value === ':where')) {
;(node as selectorParser.Pseudo).nodes.forEach(value =>
rewriteSelector(id, value, selectorRoot, slotted),
)
shouldInject = false
}
}
if (node) {
;(node as selectorParser.Node).spaces.after = ''
} else {
// For deep selectors & standalone pseudo selectors,
// the attribute selectors are prepended rather than appended.
// So all leading spaces must be eliminated to avoid problems.
selector.first.spaces.before = ''
}
if (shouldInject) {
const idToAdd = slotted ? id + '-s' : id
selector.insertAfter(
// If node is null it means we need to inject [id] at the start
// insertAfter can handle `null` here
node as any,
selectorParser.attribute({
attribute: idToAdd,
value: idToAdd,
raws: {},
quoteMark: `"`,
}),
)
}
}
function isSpaceCombinator(node: selectorParser.Node) {
return node.type === 'combinator' && /^\s+$/.test(node.value)
}
scopedPlugin.postcss = true
export default scopedPlugin