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chore(deps): update dependency lightningcss to v1.27.0

RenovateBot requested to merge renovate/lightningcss-1.x into main

This MR contains the following updates:

Package Type Update Change
lightningcss devDependencies minor 1.22.0 -> 1.27.0

Release Notes

parcel-bundler/lightningcss (lightningcss)

v1.27.0

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Added

Fixed

v1.26.0

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Added

Fixed

v1.25.1

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Fixes a property ordering bug when using the all shorthand.

v1.25.0

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This release adds more granular options for CSS modules, implements some new CSS properties, and fixes bugs.

Added

  • Add granular options to control which identifiers are scoped in CSS modules. You can turn off scoping for grid, animation, and custom_idents. This may be useful when migrating from other tools. See docs. Thanks @​timneutkens! 83839a9
  • Optimize the all shorthand property to reset other properties except direction and unicode-bidi. d7aeff3
  • Implement animation-timeline property and add support for it in the animation shorthand f4408c7

Fixed

  • Prevent simplifying translate: none and scale: none which are distinct from translate: 0 and scale: 1. Thanks @​RobinMalfait! a4cc024
  • Fix crash on box-shadow with currentColor keyword. Thanks @​magic-akari! 06ba62f
  • Fix minifier removing zero channels in color() function to follow spec change 445def9
  • Fix CSS module scoping with variables in animation shorthand fb4b334
  • Update browser compatibility data ec9da43

v1.24.1

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v1.24.0

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This release adds support the the light-dark() color function, parses CSS system colors, deduplicates custom properties during minification, merges duplicates @keyframes rules, and fixes some bugs.

light-dark()

The light-dark() function allows you to specify a light mode and dark mode color in a single declaration, without needing to write a separate media query rule. In addition, it uses the color-scheme property to control which theme to use, which allows you to set it programmatically. The color-scheme property also inherits so themes can be nested and the nearest ancestor color scheme applies.

Lightning CSS converts the light-dark() function to use CSS variable fallback when your browser targets don't support it natively. For this to work, you must set the color-scheme property on an ancestor element. The following example shows how you can support both operating system and programmatic overrides for the color scheme.

html {
  color-scheme: light dark;
}

html[data-theme=light] {
  color-scheme: light;
}

html[data-theme=dark] {
  color-scheme: dark;
}

button {
  background: light-dark(#aaa, #​444);
}

compiles to:

html {
  --lightningcss-light: initial;
  --lightningcss-dark: ;
  color-scheme: light dark;
}

@​media (prefers-color-scheme: dark) {
  html {
    --lightningcss-light: ;
    --lightningcss-dark: initial;
  }
}

html[data-theme="light"] {
  --lightningcss-light: initial;
  --lightningcss-dark: ;
  color-scheme: light;
}

html[data-theme="dark"] {
  --lightningcss-light: ;
  --lightningcss-dark: initial;
  color-scheme: dark;
}

button {
  background: var(--lightningcss-light, #aaa) var(--lightningcss-dark, #​444);
}

Check it out in the playground.

CSS system colors

CSS system colors are now supported during parsing, meaning they can be safely deduplicated when merging rules.

.a {
  background: Highlight;
}

.a {
  background: ButtonText;
}

compiles to:

.a{background:buttontext}

Custom property deduplication

CSS custom properties are now deduplicated when merging rules. The last property value always wins.

.a {
  --foo: red;
}

.a {
  --foo: green;
}

minifies to:

.a{--foo:green}

@keyframes deduplication

@keyframes rules are also now deduplicated during minification. The last rule of the same name wins.

@​keyframes a {
  from { opacity: 0 }
  to { opacity: 1 }
}

@​keyframes a {
  from { color: red }
  to { color: blue }
}

compiles to:

@​keyframes a{0%{color:red}to{color:#​00f}}

Other bug fixes

v1.23.0

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This release improves minification for @layer and @property rules, enables relative colors to be compiled in more situations, adds new functionality for custom visitor plugins, and fixes some bugs.

Downlevel relative colors with unknown alpha

Lightning CSS can now down level relative colors where the alpha value is unknown (e.g. a variable). For example:

.foo {
  color: hsl(from yellow h s l / var(--alpha));
}

becomes:

.foo {
  color: hsla(60, 100%, 50%, var(--alpha));
}

Optimized @layer rules

@layer rules with the same name are now merged together and ordered following their original declared order. For example:

@​layer a, b;

@​layer b {
  .foo { color: red }
}

@​layer a {
  .foo { background: yellow }
}

@​layer b {
  .bar { color: red }
}

becomes:

@​layer a {
  .foo { background: yellow }
}

@​layer b {
  .foo, .bar { color: red }
}

Deduped @property rules

@property rules are now deduplicated when they define the same property name. The last rule wins.

@​property --property-name {
  syntax: '<color>';
  inherits: false;
  initial-value: yellow;
}
.foo {
  color: var(--property-name)
}
@&#8203;property --property-name {
  syntax: '<color>';
  inherits: true;
  initial-value: blue;
}

compiles to:

@&#8203;property --property-name{
  syntax: "<color>";
  inherits: true;
  initial-value: #&#8203;00f
}

.foo {
  color: var(--property-name)
}

StyleSheet visitor function

The JS visitor API now supports StyleSheet and StyleSheetExit visitors, allowing you to visit the entire stylesheet at once. This enables things like rule sorting or appending/prepending rules.

let res = transform({
  filename: 'test.css',
  minify: true,
  code: Buffer.from(`
    .foo {
      width: 32px;
    }

    .bar {
      width: 80px;
    }
  `),
  visitor: {
    StyleSheetExit(stylesheet) {
      stylesheet.rules.sort((a, b) => a.value.selectors[0][0].name.localeCompare(b.value.selectors[0][0].name));
      return stylesheet;
    }
  }
});

assert.equal(res.code.toString(), '.bar{width:80px}.foo{width:32px}');

Keep in mind that visiting the entire stylesheet can be expensive, due to needing to serialize and deserialize the entire AST to send between Rust and JavaScript. Keep visitors as granular as you can to avoid this.

Other bug fixes

  • Fixed serializing grid-auto-flow in custom visitors
  • Fixed compatibility data for -webkit-fill-available and -moz-available size values
  • Added support for CommonJS in WASM package
  • Allowed whitespace or nothing in initial-value of @property rules
  • Fixed AST TypeScript types to have correct types for duplicated names

v1.22.1

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