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Implemented the plumbing for paint worklets.

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This commit is contained in:
Alan Jeffrey 2017-04-03 14:35:57 -05:00
parent 7e273d6c9b
commit fd17dcd604
23 changed files with 600 additions and 156 deletions
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25
components/style/values/generics/image.rs
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@ -27,6 +27,10 @@ pub enum Image<Gradient, ImageRect> {
Rect(ImageRect),
/// A `-moz-element(# <element-id>)`
Element(Atom),
/// A paint worklet image.
/// https://drafts.css-houdini.org/css-paint-api/
#[cfg(feature = "servo")]
PaintWorklet(PaintWorklet),
}
/// A CSS gradient.
@ -128,6 +132,23 @@ pub struct ColorStop<Color, LengthOrPercentage> {
pub position: Option<LengthOrPercentage>,
}
/// Specified values for a paint worklet.
/// https://drafts.css-houdini.org/css-paint-api/
#[derive(Clone, Debug, PartialEq, ToComputedValue)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub struct PaintWorklet {
/// The name the worklet was registered with.
pub name: Atom,
}
impl ToCss for PaintWorklet {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
dest.write_str("paint(")?;
serialize_identifier(&*self.name.to_string(), dest)?;
dest.write_str(")")
}
}
/// Values for `moz-image-rect`.
///
/// `-moz-image-rect(<uri>, top, right, bottom, left);`
@ -150,6 +171,8 @@ impl<G, R> fmt::Debug for Image<G, R>
Image::Url(ref url) => url.to_css(f),
Image::Gradient(ref grad) => grad.fmt(f),
Image::Rect(ref rect) => rect.fmt(f),
#[cfg(feature = "servo")]
Image::PaintWorklet(ref paint_worklet) => paint_worklet.fmt(f),
Image::Element(ref selector) => {
f.write_str("-moz-element(#")?;
serialize_identifier(&selector.to_string(), f)?;
@ -167,6 +190,8 @@ impl<G, R> ToCss for Image<G, R>
Image::Url(ref url) => url.to_css(dest),
Image::Gradient(ref gradient) => gradient.to_css(dest),
Image::Rect(ref rect) => rect.to_css(dest),
#[cfg(feature = "servo")]
Image::PaintWorklet(ref paint_worklet) => paint_worklet.to_css(dest),
Image::Element(ref selector) => {
dest.write_str("-moz-element(#")?;
serialize_identifier(&selector.to_string(), dest)?;