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Move Position into its own values module

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Manish Goregaokar 2016-08-01 15:22:04 +05:30
parent 88c1a67d89
commit 44e33bcdc5
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8 changed files with 215 additions and 134 deletions
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54
components/style/values/specified/mod.rs
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@ -19,6 +19,7 @@ use super::{CSSFloat, FONT_MEDIUM_PX, HasViewportPercentage, LocalToCss, NoViewp
use url::Url;
pub mod basic_shape;
pub mod position;
impl NoViewportPercentage for i32 {} // For PropertyDeclaration::Order
@ -1124,59 +1125,6 @@ impl ToCss for BorderRadiusSize {
}
}
// http://dev.w3.org/csswg/css2/colors.html#propdef-background-position
#[derive(Clone, PartialEq, Copy)]
pub enum PositionComponent {
LengthOrPercentage(LengthOrPercentage),
Center,
Left,
Right,
Top,
Bottom,
}
impl HasViewportPercentage for PositionComponent {
fn has_viewport_percentage(&self) -> bool {
match *self {
PositionComponent::LengthOrPercentage(length) => length.has_viewport_percentage(),
_ => false
}
}
}
impl PositionComponent {
pub fn parse(input: &mut Parser) -> Result<PositionComponent, ()> {
input.try(LengthOrPercentage::parse)
.map(PositionComponent::LengthOrPercentage)
.or_else(|()| {
match try!(input.next()) {
Token::Ident(value) => {
match_ignore_ascii_case! { value,
"center" => Ok(PositionComponent::Center),
"left" => Ok(PositionComponent::Left),
"right" => Ok(PositionComponent::Right),
"top" => Ok(PositionComponent::Top),
"bottom" => Ok(PositionComponent::Bottom),
_ => Err(())
}
},
_ => Err(())
}
})
}
#[inline]
pub fn to_length_or_percentage(self) -> LengthOrPercentage {
match self {
PositionComponent::LengthOrPercentage(value) => value,
PositionComponent::Center => LengthOrPercentage::Percentage(Percentage(0.5)),
PositionComponent::Left |
PositionComponent::Top => LengthOrPercentage::Percentage(Percentage(0.0)),
PositionComponent::Right |
PositionComponent::Bottom => LengthOrPercentage::Percentage(Percentage(1.0)),
}
}
}
#[derive(Clone, PartialEq, PartialOrd, Copy, Debug)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf, Deserialize, Serialize))]
/// An angle, normalized to radians.