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Stylo: Implement {specified|computed}::LayerImage.

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This commit is contained in:
cku 2017-05-03 13:23:35 +08:00
parent 1b9e1cc1f2
commit 3c3e7f63ee
9 changed files with 96 additions and 263 deletions
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105
components/style/properties/longhand/svg.mako.rs
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@ -190,98 +190,13 @@ ${helpers.single_keyword("mask-composite",
extra_prefixes="webkit",
animation_value_type="none",
spec="https://drafts.fxtf.org/css-masking/#propdef-mask-composite")}
<%helpers:vector_longhand name="mask-image" products="gecko" animation_value_type="none" extra_prefixes="webkit"
has_uncacheable_values="${product == 'gecko'}"
flags="CREATES_STACKING_CONTEXT",
spec="https://drafts.fxtf.org/css-masking/#propdef-mask-image">
use std::fmt;
use style_traits::ToCss;
use stylearc::Arc;
use values::specified::Image;
use values::specified::url::SpecifiedUrl;
use values::HasViewportPercentage;
pub mod computed_value {
use std::fmt;
use style_traits::ToCss;
use values::computed;
use values::specified::url::SpecifiedUrl;
#[derive(Debug, Clone, PartialEq)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub enum T {
Image(computed::Image),
None
}
impl ToCss for T {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
match *self {
T::None => dest.write_str("none"),
T::Image(ref image) => image.to_css(dest),
}
}
}
}
no_viewport_percentage!(SpecifiedValue);
#[derive(Debug, Clone, PartialEq)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub enum SpecifiedValue {
Image(Image),
None
}
impl ToCss for SpecifiedValue {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
match *self {
SpecifiedValue::Image(ref image) => image.to_css(dest),
SpecifiedValue::None => dest.write_str("none"),
}
}
}
#[inline]
pub fn get_initial_value() -> computed_value::T {
computed_value::T::None
}
#[inline]
pub fn get_initial_specified_value() -> SpecifiedValue {
SpecifiedValue::None
}
pub fn parse(context: &ParserContext, input: &mut Parser) -> Result<SpecifiedValue, ()> {
if input.try(|input| input.expect_ident_matching("none")).is_ok() {
Ok(SpecifiedValue::None)
} else {
let image = try!(Image::parse(context, input));
match image {
Image::Url(url_value) => {
Ok(SpecifiedValue::Image(Image::Url(url_value)))
}
image => Ok(SpecifiedValue::Image(image))
}
}
}
impl ToComputedValue for SpecifiedValue {
type ComputedValue = computed_value::T;
#[inline]
fn to_computed_value(&self, context: &Context) -> computed_value::T {
match *self {
SpecifiedValue::None => computed_value::T::None,
SpecifiedValue::Image(ref image) =>
computed_value::T::Image(image.to_computed_value(context)),
}
}
#[inline]
fn from_computed_value(computed: &computed_value::T) -> Self {
match *computed {
computed_value::T::None => SpecifiedValue::None,
computed_value::T::Image(ref image) =>
SpecifiedValue::Image(ToComputedValue::from_computed_value(image)),
}
}
}
</%helpers:vector_longhand>
${helpers.predefined_type("mask-image", "LayerImage",
initial_value="computed_value::T(None)",
initial_specified_value="SpecifiedValue(None)",
spec="https://drafts.fxtf.org/css-masking/#propdef-mask-image",
vector=True,
products="gecko",
extra_prefixes="webkit",
animation_value_type="none",
flags="CREATES_STACKING_CONTEXT",
has_uncacheable_values="True" if product == "gecko" else "False")}