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4035ab0b76
This PR replaces `@variant` with `@custom-variant` for registering
custom variants via your CSS.
In addition, this PR introduces `@variant` that can be used in your CSS
to use a variant while writing custom CSS.
E.g.:
```css
.btn {
background: white;
@variant dark {
background: black;
}
}
```
Compiles to:
```css
.btn {
background: white;
}
@media (prefers-color-scheme: dark) {
.btn {
background: black;
}
}
```
For backwards compatibility, the `@variant` rules that don't have a body
and are
defined inline:
```css
@variant hocus (&:hover, &:focus);
```
And `@variant` rules that are defined with a body and a `@slot`:
```css
@variant hocus {
&:hover, &:focus {
@slot;
}
}
```
Will automatically be upgraded to `@custom-variant` internally, so no
breaking changes are introduced with this PR.
---
TODO:
- [x] ~~Decide whether we want to allow multiple variants and if so,
what syntax should be used. If not, nesting `@variant <variant> {}` will
be the way to go.~~ Only a single `@variant <variant>` can be used, if
you want to use multiple, nesting should be used:
```css
.foo {
@variant hover {
@variant focus {
color: red;
}
}
}
```
51 lines
1.4 KiB
TypeScript
51 lines
1.4 KiB
TypeScript
import { candidate, css, html, js, json, test } from '../utils'
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test(
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'production build',
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{
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fs: {
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'package.json': json`
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{
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"dependencies": {
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"postcss": "^8",
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"postcss-cli": "^10",
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"tailwindcss": "workspace:^",
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"@tailwindcss/postcss": "workspace:^"
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}
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}
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`,
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'postcss.config.js': js`
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module.exports = {
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plugins: {
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'@tailwindcss/postcss': {},
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},
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}
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`,
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'index.html': html`
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<div class="one:underline two:underline"></div>
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`,
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'src/shared.css': css`
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@import 'tailwindcss/theme' theme(reference);
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@import 'tailwindcss/utilities';
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`,
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'src/root1.css': css`
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@import './shared.css';
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@custom-variant one (&:is([data-root='1']));
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`,
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'src/root2.css': css`
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@import './shared.css';
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@custom-variant two (&:is([data-root='2']));
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`,
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},
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},
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async ({ fs, exec }) => {
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await exec('pnpm postcss src/*.css -d dist')
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await fs.expectFileToContain('dist/root1.css', [candidate`one:underline`])
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await fs.expectFileNotToContain('dist/root1.css', [candidate`two:underline`])
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await fs.expectFileNotToContain('dist/root2.css', [candidate`one:underline`])
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await fs.expectFileToContain('dist/root2.css', [candidate`two:underline`])
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},
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)
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