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Introduce CSSPixelLength and update NonNegativeLength.

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First, we define computed::CSSPixelLength which contains a CSSFloat, a
pixel value, and then we replace computed::Length with CSSPixelLength.
Therefore, the |ComputedValue| of NoCalcLength, AbsoluteLength,
FontRelativeLength, ViewportPercentageLength, CharacterWidth, and
PhysicalLength is CSSPixelLength.

Besides, we drop NonNegativeAu, and replace computed::NonNegativeLength
with NonNegative<computed::Length>. (i.e. NonNegative<CSSPixelLength>)
This commit is contained in:
Boris Chiou 2017-09-13 14:26:51 +08:00
parent cad3aff508
commit a949e2a057
40 changed files with 502 additions and 406 deletions
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4
components/style/values/computed/text.rs
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@ -6,7 +6,7 @@
use values::{CSSInteger, CSSFloat};
use values::animated::ToAnimatedZero;
use values::computed::{NonNegativeAu, NonNegativeNumber};
use values::computed::{NonNegativeLength, NonNegativeNumber};
use values::computed::length::{Length, LengthOrPercentage};
use values::generics::text::InitialLetter as GenericInitialLetter;
use values::generics::text::LineHeight as GenericLineHeight;
@ -22,7 +22,7 @@ pub type LetterSpacing = Spacing<Length>;
pub type WordSpacing = Spacing<LengthOrPercentage>;
/// A computed value for the `line-height` property.
pub type LineHeight = GenericLineHeight<NonNegativeNumber, NonNegativeAu>;
pub type LineHeight = GenericLineHeight<NonNegativeNumber, NonNegativeLength>;
impl ToAnimatedZero for LineHeight {
#[inline]