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style: Implement flow-relative values for resize property.

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Differential Revision: https://phabricator.services.mozilla.com/D2908
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Xidorn Quan 2018-08-08 23:40:06 +00:00 • committed by Emilio Cobos Álvarez
parent 5299ce31aa
commit c77ecd6984
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7 changed files with 87 additions and 9 deletions
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55
components/style/values/computed/box.rs
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@ -9,6 +9,7 @@ use values::computed::length::{LengthOrPercentage, NonNegativeLength};
use values::generics::box_::AnimationIterationCount as GenericAnimationIterationCount;
use values::generics::box_::Perspective as GenericPerspective;
use values::generics::box_::VerticalAlign as GenericVerticalAlign;
use values::specified::box_ as specified;
pub use values::specified::box_::{AnimationName, Appearance, Contain, Display, OverflowClipBox};
pub use values::specified::box_::{Clear as SpecifiedClear, Float as SpecifiedFloat};
@ -139,3 +140,57 @@ impl ToComputedValue for SpecifiedClear {
}
}
}
/// A computed value for the `resize` property.
#[allow(missing_docs)]
#[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
#[derive(Clone, Copy, Debug, Eq, Hash, MallocSizeOf, Parse, PartialEq, ToCss)]
pub enum Resize {
None,
Both,
Horizontal,
Vertical,
}
impl ToComputedValue for specified::Resize {
type ComputedValue = Resize;
#[inline]
fn to_computed_value(&self, context: &Context) -> Resize {
let is_vertical = context.style().writing_mode.is_vertical();
match self {
specified::Resize::Inline => {
context.rule_cache_conditions.borrow_mut()
.set_writing_mode_dependency(context.builder.writing_mode);
if is_vertical {
Resize::Vertical
} else {
Resize::Horizontal
}
}
specified::Resize::Block => {
context.rule_cache_conditions.borrow_mut()
.set_writing_mode_dependency(context.builder.writing_mode);
if is_vertical {
Resize::Horizontal
} else {
Resize::Vertical
}
}
specified::Resize::None => Resize::None,
specified::Resize::Both => Resize::Both,
specified::Resize::Horizontal => Resize::Horizontal,
specified::Resize::Vertical => Resize::Vertical,
}
}
#[inline]
fn from_computed_value(computed: &Resize) -> specified::Resize {
match computed {
Resize::None => specified::Resize::None,
Resize::Both => specified::Resize::Both,
Resize::Horizontal => specified::Resize::Horizontal,
Resize::Vertical => specified::Resize::Vertical,
}
}
}