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style: Implement css(dimension) and derive ToCss for a bunch of stuff.

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For css(dimension), it'd be nice to derive(Parse) too, I think...
This commit is contained in:
Emilio Cobos Álvarez 2017-11-11 14:57:12 +01:00
parent 1b533f9bdc
commit 4927786d90
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10 changed files with 98 additions and 153 deletions
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17
components/style/gecko/media_queries.rs
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@ -29,7 +29,7 @@ use style_traits::{CSSPixel, DevicePixel};
use style_traits::{ToCss, ParseError, StyleParseErrorKind};
use style_traits::viewport::ViewportConstraints;
use stylesheets::Origin;
use values::{CSSFloat, CustomIdent, serialize_dimension};
use values::{CSSFloat, CustomIdent};
use values::computed::{self, ToComputedValue};
use values::computed::font::FontSize;
use values::specified::Length;
@ -262,7 +262,8 @@ impl PartialEq for Expression {
}
/// A resolution.
#[derive(Clone, Debug, PartialEq)]
#[derive(Clone, Debug, PartialEq, ToCss)]
#[css(dimension)]
pub enum Resolution {
/// Dots per inch.
Dpi(CSSFloat),
@ -303,18 +304,6 @@ impl Resolution {
}
}
impl ToCss for Resolution {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result
where W: fmt::Write,
{
match *self {
Resolution::Dpi(v) => serialize_dimension(v, "dpi", dest),
Resolution::Dppx(v) => serialize_dimension(v, "dppx", dest),
Resolution::Dpcm(v) => serialize_dimension(v, "dpcm", dest),
}
}
}
/// A value found or expected in a media expression.
#[derive(Clone, Debug, PartialEq)]
pub enum MediaExpressionValue {