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815d189228
This patch produces the following serialization:
```
input | computed value
------------------------------
1. "auto" "auto"
2. "auto auto" "auto"
3. "15px auto" "15px"
4. "15px" "15px"
```
i.e. If the second value is 'auto', then it's omitted from our serialization,
because it's implied.
Besides, we update the wpt to address this spec issue:
https://github.com/w3c/csswg-drafts/issues/2574
Differential Revision: https://phabricator.services.mozilla.com/D35510
54 lines
1.4 KiB
Rust
54 lines
1.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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//! Generic types for CSS values related to backgrounds.
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use crate::values::generics::length::{GenericLengthPercentageOrAuto, LengthPercentageOrAuto};
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/// A generic value for the `background-size` property.
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#[derive(
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Animate,
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Clone,
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ComputeSquaredDistance,
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Copy,
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Debug,
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MallocSizeOf,
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PartialEq,
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SpecifiedValueInfo,
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ToAnimatedValue,
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ToAnimatedZero,
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ToComputedValue,
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ToCss,
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ToResolvedValue,
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ToShmem,
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)]
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#[repr(C, u8)]
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pub enum GenericBackgroundSize<LengthPercent> {
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/// `<width> <height>`
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ExplicitSize {
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/// Explicit width.
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width: GenericLengthPercentageOrAuto<LengthPercent>,
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/// Explicit height.
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#[css(skip_if = "GenericLengthPercentageOrAuto::is_auto")]
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height: GenericLengthPercentageOrAuto<LengthPercent>,
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},
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/// `cover`
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#[animation(error)]
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Cover,
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/// `contain`
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#[animation(error)]
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Contain,
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}
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pub use self::GenericBackgroundSize as BackgroundSize;
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impl<LengthPercentage> BackgroundSize<LengthPercentage> {
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/// Returns `auto auto`.
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pub fn auto() -> Self {
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GenericBackgroundSize::ExplicitSize {
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width: LengthPercentageOrAuto::Auto,
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height: LengthPercentageOrAuto::Auto,
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}
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}
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}
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