-
-
Notifications
You must be signed in to change notification settings - Fork 33.7k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
19 changed files
with
798 additions
and
52 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,179 @@ | ||
| import { BindingMetadata } from './types' | ||
| import { SFCDescriptor } from './parseComponent' | ||
| import { PluginCreator } from 'postcss' | ||
| import hash from 'hash-sum' | ||
| import { prefixIdentifiers } from './prefixIdentifiers' | ||
|
|
||
| export const CSS_VARS_HELPER = `useCssVars` | ||
|
|
||
| export function genCssVarsFromList( | ||
| vars: string[], | ||
| id: string, | ||
| isProd: boolean, | ||
| isSSR = false | ||
| ): string { | ||
| return `{\n ${vars | ||
| .map( | ||
| key => `"${isSSR ? `--` : ``}${genVarName(id, key, isProd)}": (${key})` | ||
| ) | ||
| .join(',\n ')}\n}` | ||
| } | ||
|
|
||
| function genVarName(id: string, raw: string, isProd: boolean): string { | ||
| if (isProd) { | ||
| return hash(id + raw) | ||
| } else { | ||
| return `${id}-${raw.replace(/([^\w-])/g, '_')}` | ||
| } | ||
| } | ||
|
|
||
| function normalizeExpression(exp: string) { | ||
| exp = exp.trim() | ||
| if ( | ||
| (exp[0] === `'` && exp[exp.length - 1] === `'`) || | ||
| (exp[0] === `"` && exp[exp.length - 1] === `"`) | ||
| ) { | ||
| return exp.slice(1, -1) | ||
| } | ||
| return exp | ||
| } | ||
|
|
||
| const vBindRE = /v-bind\s*\(/g | ||
|
|
||
| export function parseCssVars(sfc: SFCDescriptor): string[] { | ||
| const vars: string[] = [] | ||
| sfc.styles.forEach(style => { | ||
| let match | ||
| // ignore v-bind() in comments /* ... */ | ||
| const content = style.content.replace(/\/\*([\s\S]*?)\*\//g, '') | ||
| while ((match = vBindRE.exec(content))) { | ||
| const start = match.index + match[0].length | ||
| const end = lexBinding(content, start) | ||
| if (end !== null) { | ||
| const variable = normalizeExpression(content.slice(start, end)) | ||
| if (!vars.includes(variable)) { | ||
| vars.push(variable) | ||
| } | ||
| } | ||
| } | ||
| }) | ||
| return vars | ||
| } | ||
|
|
||
| const enum LexerState { | ||
| inParens, | ||
| inSingleQuoteString, | ||
| inDoubleQuoteString | ||
| } | ||
|
|
||
| function lexBinding(content: string, start: number): number | null { | ||
| let state: LexerState = LexerState.inParens | ||
| let parenDepth = 0 | ||
|
|
||
| for (let i = start; i < content.length; i++) { | ||
| const char = content.charAt(i) | ||
| switch (state) { | ||
| case LexerState.inParens: | ||
| if (char === `'`) { | ||
| state = LexerState.inSingleQuoteString | ||
| } else if (char === `"`) { | ||
| state = LexerState.inDoubleQuoteString | ||
| } else if (char === `(`) { | ||
| parenDepth++ | ||
| } else if (char === `)`) { | ||
| if (parenDepth > 0) { | ||
| parenDepth-- | ||
| } else { | ||
| return i | ||
| } | ||
| } | ||
| break | ||
| case LexerState.inSingleQuoteString: | ||
| if (char === `'`) { | ||
| state = LexerState.inParens | ||
| } | ||
| break | ||
| case LexerState.inDoubleQuoteString: | ||
| if (char === `"`) { | ||
| state = LexerState.inParens | ||
| } | ||
| break | ||
| } | ||
| } | ||
| return null | ||
| } | ||
|
|
||
| // for compileStyle | ||
| export interface CssVarsPluginOptions { | ||
| id: string | ||
| isProd: boolean | ||
| } | ||
|
|
||
| export const cssVarsPlugin: PluginCreator<CssVarsPluginOptions> = opts => { | ||
| const { id, isProd } = opts! | ||
| return { | ||
| postcssPlugin: 'vue-sfc-vars', | ||
| Declaration(decl) { | ||
| // rewrite CSS variables | ||
| const value = decl.value | ||
| if (vBindRE.test(value)) { | ||
| vBindRE.lastIndex = 0 | ||
| let transformed = '' | ||
| let lastIndex = 0 | ||
| let match | ||
| while ((match = vBindRE.exec(value))) { | ||
| const start = match.index + match[0].length | ||
| const end = lexBinding(value, start) | ||
| if (end !== null) { | ||
| const variable = normalizeExpression(value.slice(start, end)) | ||
| transformed += | ||
| value.slice(lastIndex, match.index) + | ||
| `var(--${genVarName(id, variable, isProd)})` | ||
| lastIndex = end + 1 | ||
| } | ||
| } | ||
| decl.value = transformed + value.slice(lastIndex) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| cssVarsPlugin.postcss = true | ||
|
|
||
| export function genCssVarsCode( | ||
| vars: string[], | ||
| bindings: BindingMetadata, | ||
| id: string, | ||
| isProd: boolean | ||
| ) { | ||
| const varsExp = genCssVarsFromList(vars, id, isProd) | ||
| return `_${CSS_VARS_HELPER}((_vm, _setup) => ${prefixIdentifiers( | ||
| `(${varsExp})`, | ||
| false, | ||
| false, | ||
| undefined, | ||
| bindings | ||
| )})` | ||
| } | ||
|
|
||
| // <script setup> already gets the calls injected as part of the transform | ||
| // this is only for single normal <script> | ||
| export function genNormalScriptCssVarsCode( | ||
| cssVars: string[], | ||
| bindings: BindingMetadata, | ||
| id: string, | ||
| isProd: boolean | ||
| ): string { | ||
| return ( | ||
| `\nimport { ${CSS_VARS_HELPER} as _${CSS_VARS_HELPER} } from 'vue'\n` + | ||
| `const __injectCSSVars__ = () => {\n${genCssVarsCode( | ||
| cssVars, | ||
| bindings, | ||
| id, | ||
| isProd | ||
| )}}\n` + | ||
| `const __setup__ = __default__.setup\n` + | ||
| `__default__.setup = __setup__\n` + | ||
| ` ? (props, ctx) => { __injectCSSVars__();return __setup__(props, ctx) }\n` + | ||
| ` : __injectCSSVars__\n` | ||
| ) | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.