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style: Cleanup and fix interpolation of SVG lengths.

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Instead of storing them as LengthPercentage | Number, always store as
LengthPercentage, and use the unitless length quirk to parse numbers instead.

Further cleanups to use the rust representation can happen as a followup, which
will also get rid of the boolean argument (since we can poke at the rust length
itself). That's why I didn't bother to convert it to an enum class yet.

Differential Revision: https://phabricator.services.mozilla.com/D21804
This commit is contained in:
Emilio Cobos Álvarez 2019-03-01 23:17:12 +01:00
parent 9e0d38a64f
commit f1b5d5c06a
7 changed files with 94 additions and 280 deletions
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22
components/style/values/animated/mod.rs
View file

@ -16,7 +16,7 @@ use crate::values::computed::Image;
use crate::values::specified::SVGPathData;
use crate::values::CSSFloat;
use app_units::Au;
use euclid::{Point2D, Size2D};
use euclid::Point2D;
use smallvec::SmallVec;
use std::cmp;
@ -241,19 +241,6 @@ impl Animate for Au {
}
}
impl<T> Animate for Size2D<T>
where
T: Animate,
{
#[inline]
fn animate(&self, other: &Self, procedure: Procedure) -> Result<Self, ()> {
Ok(Size2D::new(
self.width.animate(&other.width, procedure)?,
self.height.animate(&other.height, procedure)?,
))
}
}
impl<T> Animate for Point2D<T>
where
T: Animate,
@ -397,16 +384,13 @@ where
}
}
impl<T> ToAnimatedZero for Size2D<T>
impl<T> ToAnimatedZero for Vec<T>
where
T: ToAnimatedZero,
{
#[inline]
fn to_animated_zero(&self) -> Result<Self, ()> {
Ok(Size2D::new(
self.width.to_animated_zero()?,
self.height.to_animated_zero()?,
))
self.iter().map(|v| v.to_animated_zero()).collect()
}
}

100
components/style/values/animated/svg.rs
View file

@ -8,10 +8,8 @@ use super::{Animate, Procedure, ToAnimatedZero};
use crate::properties::animated_properties::ListAnimation;
use crate::values::animated::color::Color as AnimatedColor;
use crate::values::computed::url::ComputedUrl;
use crate::values::computed::{LengthPercentage, Number, NumberOrPercentage};
use crate::values::distance::{ComputeSquaredDistance, SquaredDistance};
use crate::values::generics::svg::{SVGLength, SVGPaint, SvgLengthPercentageOrNumber};
use crate::values::generics::svg::{SVGOpacity, SVGStrokeDashArray};
use crate::values::distance::{SquaredDistance, ComputeSquaredDistance};
use crate::values::generics::svg::{SVGPaint, SVGStrokeDashArray};
/// Animated SVGPaint.
pub type IntermediateSVGPaint = SVGPaint<AnimatedColor, ComputedUrl>;
@ -26,67 +24,6 @@ impl ToAnimatedZero for IntermediateSVGPaint {
}
}
// FIXME: We need to handle calc here properly, see
// https://bugzilla.mozilla.org/show_bug.cgi?id=1386967
fn to_number_or_percentage(
value: &SvgLengthPercentageOrNumber<LengthPercentage, Number>,
) -> Result<NumberOrPercentage, ()> {
Ok(match *value {
SvgLengthPercentageOrNumber::LengthPercentage(ref l) => match l.specified_percentage() {
Some(p) => {
if l.unclamped_length().px() != 0. {
return Err(());
}
NumberOrPercentage::Percentage(p)
},
None => NumberOrPercentage::Number(l.length().px()),
},
SvgLengthPercentageOrNumber::Number(ref n) => NumberOrPercentage::Number(*n),
})
}
impl Animate for SvgLengthPercentageOrNumber<LengthPercentage, Number> {
#[inline]
fn animate(&self, other: &Self, procedure: Procedure) -> Result<Self, ()> {
let this = to_number_or_percentage(self)?;
let other = to_number_or_percentage(other)?;
match (this, other) {
(NumberOrPercentage::Number(ref this), NumberOrPercentage::Number(ref other)) => Ok(
SvgLengthPercentageOrNumber::Number(this.animate(other, procedure)?),
),
(
NumberOrPercentage::Percentage(ref this),
NumberOrPercentage::Percentage(ref other),
) => Ok(SvgLengthPercentageOrNumber::LengthPercentage(
LengthPercentage::new_percent(this.animate(other, procedure)?),
)),
_ => Err(()),
}
}
}
impl ComputeSquaredDistance for SvgLengthPercentageOrNumber<LengthPercentage, Number> {
fn compute_squared_distance(&self, other: &Self) -> Result<SquaredDistance, ()> {
to_number_or_percentage(self)?.compute_squared_distance(&to_number_or_percentage(other)?)
}
}
impl<L> Animate for SVGLength<L>
where
L: Animate + Clone,
{
#[inline]
fn animate(&self, other: &Self, procedure: Procedure) -> Result<Self, ()> {
match (self, other) {
(&SVGLength::Length(ref this), &SVGLength::Length(ref other)) => {
Ok(SVGLength::Length(this.animate(other, procedure)?))
},
_ => Err(()),
}
}
}
/// <https://www.w3.org/TR/SVG11/painting.html#StrokeDasharrayProperty>
impl<L> Animate for SVGStrokeDashArray<L>
where
@ -121,36 +58,3 @@ where
}
}
}
impl<L> ToAnimatedZero for SVGStrokeDashArray<L>
where
L: ToAnimatedZero,
{
#[inline]
fn to_animated_zero(&self) -> Result<Self, ()> {
match *self {
SVGStrokeDashArray::Values(ref values) => Ok(SVGStrokeDashArray::Values(
values
.iter()
.map(ToAnimatedZero::to_animated_zero)
.collect::<Result<Vec<_>, _>>()?,
)),
SVGStrokeDashArray::ContextValue => Ok(SVGStrokeDashArray::ContextValue),
}
}
}
impl<O> Animate for SVGOpacity<O>
where
O: Animate + Clone,
{
#[inline]
fn animate(&self, other: &Self, procedure: Procedure) -> Result<Self, ()> {
match (self, other) {
(&SVGOpacity::Opacity(ref this), &SVGOpacity::Opacity(ref other)) => {
Ok(SVGOpacity::Opacity(this.animate(other, procedure)?))
},
_ => Err(()),
}
}
}