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servo: Merge #16570 - Compute scriptminsize against the parent font base size (from Manishearth:scriptmin-parent); r=heycam
It's supposed to be, because it is used in the computation of the font size, so we can't have the current font size as a dependency. http://searchfox.org/mozilla-central/rev/7aa21f3b531ddee90a353215bd86e97d6974e25b/layout/style/nsRuleNode.cpp#3842 Source-Repo: https://github.com/servo/servo Source-Revision: 7aeed78eef0a082a8cc2314c421eb27ff6539bc3 --HG-- extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear extra : subtree_revision : 31f48543c555276fcf1c560d826ae51859eb4486
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@ -2157,16 +2157,56 @@ ${helpers.single_keyword("-moz-math-variant",
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internal="True" disable_when_testing="True">
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use app_units::Au;
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use gecko_bindings::structs::NS_MATHML_DEFAULT_SCRIPT_MIN_SIZE_PT;
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use std::fmt;
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use style_traits::ToCss;
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use values::HasViewportPercentage;
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use values::computed::ComputedValueAsSpecified;
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use values::specified::length::{AU_PER_PT, Length};
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use values::specified::length::{AU_PER_PT, FontBaseSize, NoCalcLength};
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pub type SpecifiedValue = Length;
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#[derive(Clone, PartialEq, Debug)]
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pub struct SpecifiedValue(pub NoCalcLength);
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pub mod computed_value {
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pub type T = super::Au;
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}
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impl ToComputedValue for SpecifiedValue {
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type ComputedValue = computed_value::T;
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fn to_computed_value(&self, cx: &Context) -> Au {
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// this value is used in the computation of font-size, so
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// we use the parent size
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let base_size = FontBaseSize::InheritedStyle;
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match self.0 {
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NoCalcLength::FontRelative(value) => {
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value.to_computed_value(cx, base_size)
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}
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NoCalcLength::ServoCharacterWidth(value) => {
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value.to_computed_value(base_size.resolve(cx))
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}
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ref l => {
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l.to_computed_value(cx)
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}
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}
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}
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fn from_computed_value(other: &computed_value::T) -> Self {
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SpecifiedValue(ToComputedValue::from_computed_value(other))
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}
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}
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impl ToCss for SpecifiedValue {
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fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
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self.0.to_css(dest)
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}
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}
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impl HasViewportPercentage for SpecifiedValue {
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fn has_viewport_percentage(&self) -> bool {
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self.0.has_viewport_percentage()
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}
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}
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#[inline]
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pub fn get_initial_value() -> computed_value::T {
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Au((NS_MATHML_DEFAULT_SCRIPT_MIN_SIZE_PT as f32 * AU_PER_PT) as i32)
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@ -1483,6 +1483,7 @@ pub extern "C" fn Servo_DeclarationBlock_SetLengthValue(declarations:
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value: f32,
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unit: structs::nsCSSUnit) {
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use style::properties::{PropertyDeclaration, LonghandId};
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use style::properties::longhands::_moz_script_min_size::SpecifiedValue as MozScriptMinSize;
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use style::values::specified::length::{AbsoluteLength, FontRelativeLength};
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use style::values::specified::length::{LengthOrPercentage, NoCalcLength};
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@ -1503,7 +1504,7 @@ pub extern "C" fn Servo_DeclarationBlock_SetLengthValue(declarations:
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let prop = match_wrap_declared! { long,
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Width => nocalc.into(),
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FontSize => LengthOrPercentage::from(nocalc).into(),
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MozScriptMinSize => nocalc.into(),
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MozScriptMinSize => MozScriptMinSize(nocalc),
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};
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write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
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decls.push(prop, Importance::Normal);
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