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style: Move font -moz-script-min-size outside of mako

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CYBAI 2017-10-28 21:42:35 +08:00
parent c7172052f9
commit 63cd930fd0
6 changed files with 64 additions and 56 deletions
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27
components/style/values/specified/font.rs
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@ -12,9 +12,11 @@ use parser::{Parse, ParserContext};
use properties::longhands::system_font::SystemFont;
use std::fmt;
use style_traits::{ToCss, StyleParseErrorKind, ParseError};
use values::computed::{font as computed, Context, NonNegativeLength, ToComputedValue};
use values::computed::{font as computed, Context, Length, NonNegativeLength, ToComputedValue};
use values::specified::{LengthOrPercentage, NoCalcLength};
use values::specified::length::FontBaseSize;
use values::specified::length::{AU_PER_PT, AU_PER_PX, FontBaseSize};
const DEFAULT_SCRIPT_MIN_SIZE_PT: u32 = 8;
#[derive(Clone, Debug, MallocSizeOf, PartialEq)]
/// A specified font-size value
@ -391,3 +393,24 @@ impl ToCss for XTextZoom {
Ok(())
}
}
#[cfg_attr(feature = "gecko", derive(MallocSizeOf))]
#[derive(Clone, Debug, PartialEq, ToCss)]
/// Specifies the minimum font size allowed due to changes in scriptlevel.
/// Ref: https://wiki.mozilla.org/MathML:mstyle
pub struct MozScriptMinSize(pub NoCalcLength);
impl MozScriptMinSize {
#[inline]
/// Calculate initial value of -moz-script-min-size.
pub fn get_initial_value() -> Length {
Length::new(DEFAULT_SCRIPT_MIN_SIZE_PT as f32 * (AU_PER_PT / AU_PER_PX))
}
}
impl Parse for MozScriptMinSize {
fn parse<'i, 't>(_: &ParserContext, input: &mut Parser<'i, 't>) -> Result<MozScriptMinSize, ParseError<'i>> {
debug_assert!(false, "Should be set directly by presentation attributes only.");
Err(input.new_custom_error(StyleParseErrorKind::UnspecifiedError))
}
}

2
components/style/values/specified/mod.rs
View file

@ -30,7 +30,7 @@ pub use self::align::{AlignItems, AlignJustifyContent, AlignJustifySelf, Justify
pub use self::background::{BackgroundRepeat, BackgroundSize};
pub use self::border::{BorderCornerRadius, BorderImageSlice, BorderImageWidth};
pub use self::border::{BorderImageSideWidth, BorderRadius, BorderSideWidth, BorderSpacing};
pub use self::font::XTextZoom;
pub use self::font::{XTextZoom, MozScriptMinSize};
pub use self::box_::{AnimationIterationCount, AnimationName, ScrollSnapType, VerticalAlign};
pub use self::color::{Color, ColorPropertyValue, RGBAColor};
pub use self::effects::{BoxShadow, Filter, SimpleShadow};