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style: Move font-variant-east-asian outside of mako

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This commit is contained in:
CYBAI 2017-11-15 00:32:19 +08:00
parent c18417db5e
commit c110c8a131
7 changed files with 270 additions and 148 deletions
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10
components/style/macros.rs
View file

@ -4,6 +4,16 @@
//! Various macro helpers.
macro_rules! exclusive_value {
(($value:ident, $set:expr) => $ident:path) => {
if $value.intersects($set) {
return Err(())
} else {
$ident
}
}
}
macro_rules! trivial_to_computed_value {
($name:ty) => {
impl $crate::values::computed::ToComputedValue for $name {

154
components/style/properties/longhand/font.mako.rs
View file

@ -690,152 +690,14 @@ macro_rules! exclusive_value {
}
}
<%helpers:longhand name="font-variant-east-asian" products="gecko" animation_value_type="discrete"
flags="APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER"
spec="https://drafts.csswg.org/css-fonts/#propdef-font-variant-east-asian">
use properties::longhands::system_font::SystemFont;
use std::fmt;
use style_traits::ToCss;
bitflags! {
#[derive(MallocSizeOf)]
pub struct VariantEastAsian: u16 {
const NORMAL = 0;
const JIS78 = 0x01;
const JIS83 = 0x02;
const JIS90 = 0x04;
const JIS04 = 0x08;
const SIMPLIFIED = 0x10;
const TRADITIONAL = 0x20;
const FULL_WIDTH = 0x40;
const PROPORTIONAL_WIDTH = 0x80;
const RUBY = 0x100;
}
}
#[cfg_attr(feature = "gecko", derive(MallocSizeOf))]
#[derive(Clone, Debug, PartialEq, ToCss)]
pub enum SpecifiedValue {
Value(VariantEastAsian),
System(SystemFont)
}
<%self:simple_system_boilerplate name="font_variant_east_asian"></%self:simple_system_boilerplate>
// servo_bit: gecko_bit
<% font_variant_east_asian_map = { "VariantEastAsian::JIS78": "JIS78",
"VariantEastAsian::JIS83": "JIS83",
"VariantEastAsian::JIS90": "JIS90",
"VariantEastAsian::JIS04": "JIS04",
"VariantEastAsian::SIMPLIFIED": "SIMPLIFIED",
"VariantEastAsian::TRADITIONAL": "TRADITIONAL",
"VariantEastAsian::FULL_WIDTH": "FULL_WIDTH",
"VariantEastAsian::PROPORTIONAL_WIDTH": "PROP_WIDTH",
"VariantEastAsian::RUBY": "RUBY" } %>
${helpers.gecko_bitflags_conversion(font_variant_east_asian_map, 'NS_FONT_VARIANT_EAST_ASIAN_',
'VariantEastAsian', kw_type='u16')}
impl ToCss for VariantEastAsian {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
if self.is_empty() {
return dest.write_str("normal")
}
let mut has_any = false;
macro_rules! write_value {
($ident:path => $str:expr) => {
if self.intersects($ident) {
if has_any {
dest.write_str(" ")?;
}
has_any = true;
dest.write_str($str)?;
}
}
}
write_value!(VariantEastAsian::JIS78 => "jis78");
write_value!(VariantEastAsian::JIS83 => "jis83");
write_value!(VariantEastAsian::JIS90 => "jis90");
write_value!(VariantEastAsian::JIS04 => "jis04");
write_value!(VariantEastAsian::SIMPLIFIED => "simplified");
write_value!(VariantEastAsian::TRADITIONAL => "traditional");
write_value!(VariantEastAsian::FULL_WIDTH => "full-width");
write_value!(VariantEastAsian::PROPORTIONAL_WIDTH => "proportional-width");
write_value!(VariantEastAsian::RUBY => "ruby");
debug_assert!(has_any);
Ok(())
}
}
pub mod computed_value {
pub type T = super::VariantEastAsian;
}
#[inline]
pub fn get_initial_value() -> computed_value::T {
computed_value::T::empty()
}
#[inline]
pub fn get_initial_specified_value() -> SpecifiedValue {
SpecifiedValue::Value(VariantEastAsian::empty())
}
/// normal | [ <east-asian-variant-values> || <east-asian-width-values> || ruby ]
/// <east-asian-variant-values> = [ jis78 | jis83 | jis90 | jis04 | simplified | traditional ]
/// <east-asian-width-values> = [ full-width | proportional-width ]
<% east_asian_variant_values = """VariantEastAsian::JIS78 | VariantEastAsian::JIS83 |
VariantEastAsian::JIS90 | VariantEastAsian::JIS04 |
VariantEastAsian::SIMPLIFIED | VariantEastAsian::TRADITIONAL""" %>
<% east_asian_width_values = "VariantEastAsian::FULL_WIDTH | VariantEastAsian::PROPORTIONAL_WIDTH" %>
pub fn parse<'i, 't>(_context: &ParserContext, input: &mut Parser<'i, 't>)
-> Result<SpecifiedValue, ParseError<'i>> {
let mut result = VariantEastAsian::empty();
if input.try(|input| input.expect_ident_matching("normal")).is_ok() {
return Ok(SpecifiedValue::Value(result))
}
while let Ok(flag) = input.try(|input| {
Ok(match_ignore_ascii_case! { &input.expect_ident().map_err(|_| ())?,
"jis78" =>
exclusive_value!((result, ${east_asian_variant_values}) => VariantEastAsian::JIS78),
"jis83" =>
exclusive_value!((result, ${east_asian_variant_values}) => VariantEastAsian::JIS83),
"jis90" =>
exclusive_value!((result, ${east_asian_variant_values}) => VariantEastAsian::JIS90),
"jis04" =>
exclusive_value!((result, ${east_asian_variant_values}) => VariantEastAsian::JIS04),
"simplified" =>
exclusive_value!((result, ${east_asian_variant_values}) => VariantEastAsian::SIMPLIFIED),
"traditional" =>
exclusive_value!((result, ${east_asian_variant_values}) => VariantEastAsian::TRADITIONAL),
"full-width" =>
exclusive_value!((result, ${east_asian_width_values}) => VariantEastAsian::FULL_WIDTH),
"proportional-width" =>
exclusive_value!((result, ${east_asian_width_values}) => VariantEastAsian::PROPORTIONAL_WIDTH),
"ruby" =>
exclusive_value!((result, VariantEastAsian::RUBY) => VariantEastAsian::RUBY),
_ => return Err(()),
})
}) {
result.insert(flag);
}
if !result.is_empty() {
Ok(SpecifiedValue::Value(result))
} else {
Err(input.new_custom_error(StyleParseErrorKind::UnspecifiedError))
}
}
#[cfg(feature = "gecko")]
impl_gecko_keyword_conversions!(VariantEastAsian, u16);
</%helpers:longhand>
${helpers.predefined_type("font-variant-east-asian",
"FontVariantEastAsian",
products="gecko",
initial_value="computed::FontVariantEastAsian::empty()",
initial_specified_value="specified::FontVariantEastAsian::empty()",
animation_value_type="discrete",
flags="APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
spec="https://drafts.csswg.org/css-fonts/#propdef-font-variant-east-asian")}
<%helpers:longhand name="font-variant-ligatures" products="gecko" animation_value_type="discrete"
flags="APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER"

3
components/style/values/computed/font.rs
View file

@ -277,6 +277,9 @@ impl FontVariantAlternates {
}
}
/// Use VariantEastAsian as computed type of FontVariantEastAsian
pub type FontVariantEastAsian = specified::VariantEastAsian;
/// font-language-override can only have a single three-letter
/// OpenType "language system" tag, so we should be able to compute
/// it and store it as a 32-bit integer

3
components/style/values/computed/mod.rs
View file

@ -37,7 +37,8 @@ pub use self::background::{BackgroundSize, BackgroundRepeat};
pub use self::border::{BorderImageSlice, BorderImageWidth, BorderImageSideWidth};
pub use self::border::{BorderRadius, BorderCornerRadius, BorderSpacing};
pub use self::font::{FontSize, FontSizeAdjust, FontSynthesis, FontWeight, FontVariantAlternates};
pub use self::font::{FontLanguageOverride, FontVariantSettings, MozScriptLevel, MozScriptMinSize, XTextZoom};
pub use self::font::{FontLanguageOverride, FontVariantSettings, FontVariantEastAsian};
pub use self::font::{MozScriptLevel, MozScriptMinSize, XTextZoom};
pub use self::box_::{AnimationIterationCount, AnimationName, ScrollSnapType, VerticalAlign};
pub use self::color::{Color, ColorPropertyValue, RGBAColor};
pub use self::effects::{BoxShadow, Filter, SimpleShadow};

244
components/style/values/specified/font.rs
View file

@ -851,6 +851,250 @@ impl Parse for FontVariantAlternates {
}
}
bitflags! {
#[derive(MallocSizeOf)]
/// Vairants for east asian variant
pub struct VariantEastAsian: u16 {
/// None of the features
const NORMAL = 0;
/// Enables rendering of JIS78 forms (OpenType feature: jp78)
const JIS78 = 0x01;
/// Enables rendering of JIS83 forms (OpenType feature: jp83).
const JIS83 = 0x02;
/// Enables rendering of JIS90 forms (OpenType feature: jp90).
const JIS90 = 0x04;
/// Enables rendering of JIS2004 forms (OpenType feature: jp04).
const JIS04 = 0x08;
/// Enables rendering of simplified forms (OpenType feature: smpl).
const SIMPLIFIED = 0x10;
/// Enables rendering of traditional forms (OpenType feature: trad).
const TRADITIONAL = 0x20;
/// Enables rendering of full-width variants (OpenType feature: fwid).
const FULL_WIDTH = 0x40;
/// Enables rendering of proportionally-spaced variants (OpenType feature: pwid).
const PROPORTIONAL_WIDTH = 0x80;
/// Enables display of ruby variant glyphs (OpenType feature: ruby).
const RUBY = 0x100;
}
}
#[cfg(feature = "gecko")]
impl VariantEastAsian {
/// Obtain a specified value from a Gecko keyword value
///
/// Intended for use with presentation attributes, not style structs
pub fn from_gecko_keyword(kw: u16) -> Self {
Self::from_bits_truncate(kw)
}
/// Transform into gecko keyword
pub fn to_gecko_keyword(self) -> u16 {
self.bits()
}
}
impl ToCss for VariantEastAsian {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
if self.is_empty() {
return dest.write_str("normal")
}
let mut has_any = false;
macro_rules! write_value {
($ident:path => $str:expr) => {
if self.intersects($ident) {
if has_any {
dest.write_str(" ")?;
}
has_any = true;
dest.write_str($str)?;
}
}
}
write_value!(VariantEastAsian::JIS78 => "jis78");
write_value!(VariantEastAsian::JIS83 => "jis83");
write_value!(VariantEastAsian::JIS90 => "jis90");
write_value!(VariantEastAsian::JIS04 => "jis04");
write_value!(VariantEastAsian::SIMPLIFIED => "simplified");
write_value!(VariantEastAsian::TRADITIONAL => "traditional");
write_value!(VariantEastAsian::FULL_WIDTH => "full-width");
write_value!(VariantEastAsian::PROPORTIONAL_WIDTH => "proportional-width");
write_value!(VariantEastAsian::RUBY => "ruby");
debug_assert!(has_any);
Ok(())
}
}
#[cfg(feature = "gecko")]
impl From<u16> for VariantEastAsian {
fn from(bits: u16) -> VariantEastAsian {
VariantEastAsian::from_gecko_keyword(bits)
}
}
#[cfg(feature = "gecko")]
impl From<VariantEastAsian> for u16 {
fn from(v: VariantEastAsian) -> u16 {
v.to_gecko_keyword()
}
}
/// Asserts that all variant-east-asian matches its NS_FONT_VARIANT_EAST_ASIAN_* value.
#[cfg(feature = "gecko")]
#[inline]
pub fn assert_variant_east_asian_matches() {
use gecko_bindings::structs;
macro_rules! check_variant_east_asian {
( $( $a:ident => $b:path),*, ) => {
if cfg!(debug_assertions) {
$(
assert_eq!(structs::$a as u16, $b.bits());
)*
}
}
}
check_variant_east_asian! {
NS_FONT_VARIANT_EAST_ASIAN_FULL_WIDTH => VariantEastAsian::FULL_WIDTH,
NS_FONT_VARIANT_EAST_ASIAN_JIS04 => VariantEastAsian::JIS04,
NS_FONT_VARIANT_EAST_ASIAN_JIS78 => VariantEastAsian::JIS78,
NS_FONT_VARIANT_EAST_ASIAN_JIS83 => VariantEastAsian::JIS83,
NS_FONT_VARIANT_EAST_ASIAN_JIS90 => VariantEastAsian::JIS90,
NS_FONT_VARIANT_EAST_ASIAN_PROP_WIDTH => VariantEastAsian::PROPORTIONAL_WIDTH,
NS_FONT_VARIANT_EAST_ASIAN_RUBY => VariantEastAsian::RUBY,
NS_FONT_VARIANT_EAST_ASIAN_SIMPLIFIED => VariantEastAsian::SIMPLIFIED,
NS_FONT_VARIANT_EAST_ASIAN_TRADITIONAL => VariantEastAsian::TRADITIONAL,
}
}
#[cfg_attr(feature = "gecko", derive(MallocSizeOf))]
#[derive(Clone, Debug, PartialEq, ToCss)]
/// Allows control of glyph substitution and sizing in East Asian text.
pub enum FontVariantEastAsian {
/// Value variant with `variant-east-asian`
Value(VariantEastAsian),
/// System font variant
System(SystemFont)
}
impl FontVariantEastAsian {
#[inline]
/// Get default `font-variant-east-asian` with `empty` variant
pub fn empty() -> Self {
FontVariantEastAsian::Value(VariantEastAsian::empty())
}
/// Get `font-variant-east-asian` with system font
pub fn system_font(f: SystemFont) -> Self {
FontVariantEastAsian::System(f)
}
/// Get system font
pub fn get_system(&self) -> Option<SystemFont> {
if let FontVariantEastAsian::System(s) = *self {
Some(s)
} else {
None
}
}
}
impl ToComputedValue for FontVariantEastAsian {
type ComputedValue = computed::FontVariantEastAsian;
fn to_computed_value(&self, _context: &Context) -> computed::FontVariantEastAsian {
match *self {
FontVariantEastAsian::Value(ref v) => v.clone(),
FontVariantEastAsian::System(_) => {
#[cfg(feature = "gecko")] {
_context.cached_system_font.as_ref().unwrap().font_variant_east_asian.clone()
}
#[cfg(feature = "servo")] {
unreachable!()
}
}
}
}
fn from_computed_value(other: &computed::FontVariantEastAsian) -> Self {
FontVariantEastAsian::Value(other.clone())
}
}
impl Parse for FontVariantEastAsian {
/// normal | [ <east-asian-variant-values> || <east-asian-width-values> || ruby ]
/// <east-asian-variant-values> = [ jis78 | jis83 | jis90 | jis04 | simplified | traditional ]
/// <east-asian-width-values> = [ full-width | proportional-width ]
fn parse<'i, 't>(
_context: &ParserContext,
input: &mut Parser<'i, 't>
) -> Result<FontVariantEastAsian, ParseError<'i>> {
let mut result = VariantEastAsian::empty();
if input.try(|input| input.expect_ident_matching("normal")).is_ok() {
return Ok(FontVariantEastAsian::Value(result))
}
while let Ok(flag) = input.try(|input| {
Ok(match_ignore_ascii_case! { &input.expect_ident().map_err(|_| ())?,
"jis78" =>
exclusive_value!((result, VariantEastAsian::JIS78 | VariantEastAsian::JIS83 |
VariantEastAsian::JIS90 | VariantEastAsian::JIS04 |
VariantEastAsian::SIMPLIFIED | VariantEastAsian::TRADITIONAL
) => VariantEastAsian::JIS78),
"jis83" =>
exclusive_value!((result, VariantEastAsian::JIS78 | VariantEastAsian::JIS83 |
VariantEastAsian::JIS90 | VariantEastAsian::JIS04 |
VariantEastAsian::SIMPLIFIED | VariantEastAsian::TRADITIONAL
) => VariantEastAsian::JIS83),
"jis90" =>
exclusive_value!((result, VariantEastAsian::JIS78 | VariantEastAsian::JIS83 |
VariantEastAsian::JIS90 | VariantEastAsian::JIS04 |
VariantEastAsian::SIMPLIFIED | VariantEastAsian::TRADITIONAL
) => VariantEastAsian::JIS90),
"jis04" =>
exclusive_value!((result, VariantEastAsian::JIS78 | VariantEastAsian::JIS83 |
VariantEastAsian::JIS90 | VariantEastAsian::JIS04 |
VariantEastAsian::SIMPLIFIED | VariantEastAsian::TRADITIONAL
) => VariantEastAsian::JIS04),
"simplified" =>
exclusive_value!((result, VariantEastAsian::JIS78 | VariantEastAsian::JIS83 |
VariantEastAsian::JIS90 | VariantEastAsian::JIS04 |
VariantEastAsian::SIMPLIFIED | VariantEastAsian::TRADITIONAL
) => VariantEastAsian::SIMPLIFIED),
"traditional" =>
exclusive_value!((result, VariantEastAsian::JIS78 | VariantEastAsian::JIS83 |
VariantEastAsian::JIS90 | VariantEastAsian::JIS04 |
VariantEastAsian::SIMPLIFIED | VariantEastAsian::TRADITIONAL
) => VariantEastAsian::TRADITIONAL),
"full-width" =>
exclusive_value!((result, VariantEastAsian::FULL_WIDTH |
VariantEastAsian::PROPORTIONAL_WIDTH
) => VariantEastAsian::FULL_WIDTH),
"proportional-width" =>
exclusive_value!((result, VariantEastAsian::FULL_WIDTH |
VariantEastAsian::PROPORTIONAL_WIDTH
) => VariantEastAsian::PROPORTIONAL_WIDTH),
"ruby" =>
exclusive_value!((result, VariantEastAsian::RUBY) => VariantEastAsian::RUBY),
_ => return Err(()),
})
}) {
result.insert(flag);
}
if !result.is_empty() {
Ok(FontVariantEastAsian::Value(result))
} else {
Err(input.new_custom_error(StyleParseErrorKind::UnspecifiedError))
}
}
}
#[derive(Clone, Debug, MallocSizeOf, PartialEq, ToComputedValue)]
/// Whether user agents are allowed to synthesize bold or oblique font faces
/// when a font family lacks bold or italic faces

3
components/style/values/specified/mod.rs
View file

@ -31,7 +31,8 @@ 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::{FontSize, FontSizeAdjust, FontSynthesis, FontWeight, FontVariantAlternates};
pub use self::font::{FontLanguageOverride, FontVariantSettings, MozScriptLevel, MozScriptMinSize, XTextZoom};
pub use self::font::{FontLanguageOverride, FontVariantSettings, FontVariantEastAsian};
pub use self::font::{MozScriptLevel, MozScriptMinSize, XTextZoom};
pub use self::box_::{AnimationIterationCount, AnimationName, ScrollSnapType, VerticalAlign};
pub use self::color::{Color, ColorPropertyValue, RGBAColor};
pub use self::effects::{BoxShadow, Filter, SimpleShadow};