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style: Use cbindgen for gradients.

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Differential Revision: https://phabricator.services.mozilla.com/D33901
This commit is contained in:
Emilio Cobos Álvarez 2019-06-07 14:13:17 +00:00
parent ad142f8f2f
commit a4690ce158
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GPG key ID: E1152D0994E4BF8A
10 changed files with 190 additions and 474 deletions
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38
components/style/values/computed/image.rs
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@ -11,41 +11,41 @@ use crate::values::computed::position::Position;
use crate::values::computed::url::ComputedImageUrl;
use crate::values::computed::{Angle, Color, Context};
use crate::values::computed::{Length, LengthPercentage, NumberOrPercentage, ToComputedValue};
use crate::values::generics::image::{self as generic, CompatMode};
use crate::values::generics::image::{self as generic, GradientCompatMode};
use crate::values::specified::image::LineDirection as SpecifiedLineDirection;
use crate::values::specified::position::{X, Y};
use crate::values::{Either, None_};
use crate::values::specified::position::{HorizontalPositionKeyword, VerticalPositionKeyword};
use std::f32::consts::PI;
use std::fmt::{self, Write};
use style_traits::{CssWriter, ToCss};
/// A computed image layer.
pub type ImageLayer = Either<None_, Image>;
pub type ImageLayer = generic::GenericImageLayer<Image>;
/// Computed values for an image according to CSS-IMAGES.
/// <https://drafts.csswg.org/css-images/#image-values>
pub type Image = generic::Image<Gradient, MozImageRect, ComputedImageUrl>;
pub type Image = generic::GenericImage<Gradient, MozImageRect, ComputedImageUrl>;
/// Computed values for a CSS gradient.
/// <https://drafts.csswg.org/css-images/#gradients>
pub type Gradient =
generic::Gradient<LineDirection, Length, LengthPercentage, Position, Color>;
generic::GenericGradient<LineDirection, Length, LengthPercentage, Position, Color>;
/// A computed gradient kind.
pub type GradientKind =
generic::GradientKind<LineDirection, Length, LengthPercentage, Position>;
generic::GenericGradientKind<LineDirection, Length, LengthPercentage, Position>;
/// A computed gradient line direction.
#[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq, ToResolvedValue)]
#[repr(C, u8)]
pub enum LineDirection {
/// An angle.
Angle(Angle),
/// A horizontal direction.
Horizontal(X),
Horizontal(HorizontalPositionKeyword),
/// A vertical direction.
Vertical(Y),
Vertical(VerticalPositionKeyword),
/// A corner.
Corner(X, Y),
Corner(HorizontalPositionKeyword, VerticalPositionKeyword),
}
/// A computed radial gradient ending shape.
@ -61,35 +61,39 @@ pub type ColorStop = generic::ColorStop<Color, LengthPercentage>;
pub type MozImageRect = generic::MozImageRect<NumberOrPercentage, ComputedImageUrl>;
impl generic::LineDirection for LineDirection {
fn points_downwards(&self, compat_mode: CompatMode) -> bool {
fn points_downwards(&self, compat_mode: GradientCompatMode) -> bool {
match *self {
LineDirection::Angle(angle) => angle.radians() == PI,
LineDirection::Vertical(Y::Bottom) if compat_mode == CompatMode::Modern => true,
LineDirection::Vertical(Y::Top) if compat_mode != CompatMode::Modern => true,
LineDirection::Vertical(VerticalPositionKeyword::Bottom) => {
compat_mode == GradientCompatMode::Modern
}
LineDirection::Vertical(VerticalPositionKeyword::Top) => {
compat_mode != GradientCompatMode::Modern
}
_ => false,
}
}
fn to_css<W>(&self, dest: &mut CssWriter<W>, compat_mode: CompatMode) -> fmt::Result
fn to_css<W>(&self, dest: &mut CssWriter<W>, compat_mode: GradientCompatMode) -> fmt::Result
where
W: Write,
{
match *self {
LineDirection::Angle(ref angle) => angle.to_css(dest),
LineDirection::Horizontal(x) => {
if compat_mode == CompatMode::Modern {
if compat_mode == GradientCompatMode::Modern {
dest.write_str("to ")?;
}
x.to_css(dest)
},
LineDirection::Vertical(y) => {
if compat_mode == CompatMode::Modern {
if compat_mode == GradientCompatMode::Modern {
dest.write_str("to ")?;
}
y.to_css(dest)
},
LineDirection::Corner(x, y) => {
if compat_mode == CompatMode::Modern {
if compat_mode == GradientCompatMode::Modern {
dest.write_str("to ")?;
}
x.to_css(dest)?;