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style: Move font -moz-script-level outside of mako

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This commit is contained in:
CYBAI 2017-11-03 00:59:00 +08:00
parent 86b9e7d7d6
commit d316c55590
6 changed files with 84 additions and 78 deletions
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35
components/style/values/computed/font.rs
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@ -192,3 +192,38 @@ impl ToComputedValue for specified::MozScriptMinSize {
specified::MozScriptMinSize(ToComputedValue::from_computed_value(other))
}
}
/// The computed value of the -moz-script-level property.
pub type MozScriptLevel = i8;
#[cfg(feature = "gecko")]
impl ToComputedValue for specified::MozScriptLevel {
type ComputedValue = MozScriptLevel;
fn to_computed_value(&self, cx: &Context) -> i8 {
use properties::longhands::_moz_math_display::SpecifiedValue as DisplayValue;
use std::{cmp, i8};
let int = match *self {
specified::MozScriptLevel::Auto => {
let parent = cx.builder.get_parent_font().clone__moz_script_level() as i32;
let display = cx.builder.get_parent_font().clone__moz_math_display();
if display == DisplayValue::inline {
parent + 1
} else {
parent
}
}
specified::MozScriptLevel::Relative(rel) => {
let parent = cx.builder.get_parent_font().clone__moz_script_level();
parent as i32 + rel
}
specified::MozScriptLevel::Absolute(abs) => abs,
};
cmp::min(int, i8::MAX as i32) as i8
}
fn from_computed_value(other: &i8) -> Self {
specified::MozScriptLevel::Absolute(*other as i32)
}
}