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style: Convert the font-stretch descriptor to use NonNegativePercentage

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Depends on D109285

Differential Revision: https://phabricator.services.mozilla.com/D109286
This commit is contained in:
Oriol Brufau 2023-05-16 10:56:02 +02:00
parent 4d4fb4b414
commit 5ef832b778
3 changed files with 7 additions and 28 deletions
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2
components/style/font_face.rs
View file

@ -194,7 +194,7 @@ impl FontStretchRange {
fn compute_stretch(s: &FontStretch) -> f32 {
match *s {
FontStretch::Keyword(ref kw) => kw.compute().0,
FontStretch::Stretch(ref p) => p.get(),
FontStretch::Stretch(ref p) => p.0.get(),
FontStretch::System(..) => unreachable!(),
}
}

2
components/style/properties/shorthands/font.mako.rs
View file

@ -197,7 +197,7 @@
let font_stretch = match *self.font_stretch {
FontStretch::Keyword(kw) => kw,
FontStretch::Stretch(percentage) => {
match FontStretchKeyword::from_percentage(percentage.get()) {
match FontStretchKeyword::from_percentage(percentage.0.get()) {
Some(kw) => kw,
None => return Ok(()),
}

31
components/style/values/specified/font.rs
View file

@ -19,7 +19,7 @@ use crate::values::generics::font::{self as generics, FeatureTagValue, FontSetti
use crate::values::generics::NonNegative;
use crate::values::specified::length::{FontBaseSize, PX_PER_PT};
use crate::values::specified::{AllowQuirks, Angle, Integer, LengthPercentage};
use crate::values::specified::{NoCalcLength, NonNegativeNumber, Number, Percentage};
use crate::values::specified::{NoCalcLength, NonNegativeNumber, Number, NonNegativePercentage};
use crate::values::CustomIdent;
use crate::Atom;
use cssparser::{Parser, Token};
@ -359,13 +359,11 @@ impl ToComputedValue for FontStyle {
/// A value for the `font-stretch` property.
///
/// https://drafts.csswg.org/css-fonts-4/#font-stretch-prop
///
/// TODO(emilio): We could derive Parse if we had NonNegativePercentage.
#[allow(missing_docs)]
#[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToCss, ToShmem)]
#[derive(Clone, Copy, Debug, MallocSizeOf, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem)]
#[repr(u8)]
pub enum FontStretch {
Stretch(Percentage),
Stretch(NonNegativePercentage),
Keyword(FontStretchKeyword),
#[css(skip)]
System(SystemFont),
@ -452,32 +450,13 @@ impl FontStretch {
system_font_methods!(FontStretch, font_stretch);
}
impl Parse for FontStretch {
fn parse<'i, 't>(
context: &ParserContext,
input: &mut Parser<'i, 't>,
) -> Result<Self, ParseError<'i>> {
// From https://drafts.csswg.org/css-fonts-4/#font-stretch-prop:
//
// Values less than 0% are not allowed and are treated as parse
// errors.
if let Ok(percentage) =
input.try_parse(|input| Percentage::parse_non_negative(context, input))
{
return Ok(FontStretch::Stretch(percentage));
}
Ok(FontStretch::Keyword(FontStretchKeyword::parse(input)?))
}
}
impl ToComputedValue for FontStretch {
type ComputedValue = computed::FontStretch;
fn to_computed_value(&self, context: &Context) -> Self::ComputedValue {
match *self {
FontStretch::Stretch(ref percentage) => {
computed::FontStretch(NonNegative(percentage.to_computed_value(context)))
computed::FontStretch(percentage.to_computed_value(context))
},
FontStretch::Keyword(ref kw) => computed::FontStretch(NonNegative(kw.compute())),
FontStretch::System(_) => self.compute_system(context),
@ -485,7 +464,7 @@ impl ToComputedValue for FontStretch {
}
fn from_computed_value(computed: &Self::ComputedValue) -> Self {
FontStretch::Stretch(Percentage::from_computed_value(&(computed.0).0))
FontStretch::Stretch(NonNegativePercentage::from_computed_value(&NonNegative((computed.0).0)))
}
}