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style: Omit center positions in conic/radial gradient serialization.

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Differential Revision: https://phabricator.services.mozilla.com/D67461
This commit is contained in:
Tim Nguyen 2020-03-27 22:52:32 +00:00 • committed by Emilio Cobos Álvarez
parent 414edb5a4a
commit d17b3cc202
4 changed files with 77 additions and 12 deletions
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13
components/style/values/specified/position.rs
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@ -13,6 +13,7 @@ use crate::str::HTML_SPACE_CHARACTERS;
use crate::values::computed::LengthPercentage as ComputedLengthPercentage;
use crate::values::computed::{Context, Percentage, ToComputedValue};
use crate::values::generics::position::Position as GenericPosition;
use crate::values::generics::position::PositionComponent as GenericPositionComponent;
use crate::values::generics::position::PositionOrAuto as GenericPositionOrAuto;
use crate::values::generics::position::ZIndex as GenericZIndex;
use crate::values::specified::{AllowQuirks, Integer, LengthPercentage};
@ -262,6 +263,18 @@ impl<S: Parse> PositionComponent<S> {
}
}
impl<S> GenericPositionComponent for PositionComponent<S> {
fn is_center(&self) -> bool {
match *self {
PositionComponent::Center => true,
PositionComponent::Length(LengthPercentage::Percentage(ref per)) => per.0 == 0.5,
// 50% from any side is still the center.
PositionComponent::Side(_, Some(LengthPercentage::Percentage(ref per))) => per.0 == 0.5,
_ => false,
}
}
}
impl<S> PositionComponent<S> {
/// `0%`
pub fn zero() -> Self {