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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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2
components/style/stylesheets/viewport_rule.rs
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@ -735,7 +735,7 @@ impl MaybeNew for ViewportConstraints {
match *$value {
ViewportLength::Specified(ref length) => match *length {
LengthOrPercentageOrAuto::Length(ref value) =>
Some(value.to_computed_value(&context)),
Some(Au::from(value.to_computed_value(&context))),
LengthOrPercentageOrAuto::Percentage(value) =>
Some(initial_viewport.$dimension.scale_by(value.0)),
LengthOrPercentageOrAuto::Auto => None,