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Auto merge of #16931 - nox:font-feature-descriptor, r=emilio
Support font-feature-settings as a @font-face descriptor <!-- Reviewable:start --> This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/16931) <!-- Reviewable:end -->
This commit is contained in:
commit
61d64daf4c
7 changed files with 191 additions and 124 deletions
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@ -9,7 +9,7 @@
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#![deny(missing_docs)]
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#![deny(missing_docs)]
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#[cfg(feature = "gecko")]
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#[cfg(feature = "gecko")]
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use computed_values::{font_style, font_weight, font_stretch};
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use computed_values::{font_feature_settings, font_stretch, font_style, font_weight};
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use computed_values::font_family::FamilyName;
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use computed_values::font_family::FamilyName;
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use cssparser::{AtRuleParser, DeclarationListParser, DeclarationParser, Parser};
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use cssparser::{AtRuleParser, DeclarationListParser, DeclarationParser, Parser};
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use cssparser::SourceLocation;
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use cssparser::SourceLocation;
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@ -72,6 +72,17 @@ impl ToCss for UrlSource {
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}
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}
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}
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}
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/// A font-display value for a @font-face rule.
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/// The font-display descriptor determines how a font face is displayed based
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/// on whether and when it is downloaded and ready to use.
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define_css_keyword_enum!(FontDisplay:
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"auto" => Auto,
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"block" => Block,
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"swap" => Swap,
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"fallback" => Fallback,
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"optional" => Optional);
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add_impls_for_keyword_enum!(FontDisplay);
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/// Parse the block inside a `@font-face` rule.
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/// Parse the block inside a `@font-face` rule.
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///
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///
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/// Note that the prelude parsing code lives in the `stylesheets` module.
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/// Note that the prelude parsing code lives in the `stylesheets` module.
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@ -332,12 +343,20 @@ font_face_descriptors! {
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/// The stretch of this font face
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/// The stretch of this font face
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"font-stretch" stretch / mStretch: font_stretch::T = font_stretch::T::normal,
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"font-stretch" stretch / mStretch: font_stretch::T = font_stretch::T::normal,
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/// The display of this font face
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"font-display" display / mDisplay: FontDisplay = FontDisplay::Auto,
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/// The ranges of code points outside of which this font face should not be used.
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/// The ranges of code points outside of which this font face should not be used.
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"unicode-range" unicode_range / mUnicodeRange: Vec<UnicodeRange> = vec![
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"unicode-range" unicode_range / mUnicodeRange: Vec<UnicodeRange> = vec![
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UnicodeRange { start: 0, end: 0x10FFFF }
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UnicodeRange { start: 0, end: 0x10FFFF }
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],
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],
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// FIXME: add font-feature-settings, font-language-override, and font-display
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/// The feature settings of this font face.
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"font-feature-settings" feature_settings / mFontFeatureSettings: font_feature_settings::T = {
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font_feature_settings::T::Normal
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},
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// FIXME: add font-language-override.
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]
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]
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}
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}
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@ -4,18 +4,19 @@
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//! Bindings for CSS Rule objects
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//! Bindings for CSS Rule objects
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use computed_values::{font_style, font_weight, font_stretch};
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use byteorder::{BigEndian, WriteBytesExt};
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use computed_values::{font_feature_settings, font_stretch, font_style, font_weight};
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use computed_values::font_family::FamilyName;
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use computed_values::font_family::FamilyName;
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use counter_style;
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use counter_style;
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use cssparser::UnicodeRange;
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use cssparser::UnicodeRange;
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use font_face::{FontFaceRuleData, Source};
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use font_face::{FontFaceRuleData, Source, FontDisplay};
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use gecko_bindings::bindings;
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use gecko_bindings::bindings;
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use gecko_bindings::structs::{self, nsCSSFontFaceRule, nsCSSValue};
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use gecko_bindings::structs::{self, nsCSSFontFaceRule, nsCSSValue};
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use gecko_bindings::structs::{nsCSSCounterDesc, nsCSSCounterStyleRule};
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use gecko_bindings::structs::{nsCSSCounterDesc, nsCSSCounterStyleRule};
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use gecko_bindings::sugar::ns_css_value::ToNsCssValue;
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use gecko_bindings::sugar::ns_css_value::ToNsCssValue;
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use gecko_bindings::sugar::refptr::{RefPtr, UniqueRefPtr};
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use gecko_bindings::sugar::refptr::{RefPtr, UniqueRefPtr};
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use shared_lock::{ToCssWithGuard, SharedRwLockReadGuard};
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use shared_lock::{ToCssWithGuard, SharedRwLockReadGuard};
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use std::fmt;
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use std::{fmt, str};
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/// A @font-face rule
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/// A @font-face rule
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pub type FontFaceRule = RefPtr<nsCSSFontFaceRule>;
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pub type FontFaceRule = RefPtr<nsCSSFontFaceRule>;
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@ -32,6 +33,27 @@ impl ToNsCssValue for font_weight::T {
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}
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}
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}
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}
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impl ToNsCssValue for font_feature_settings::T {
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fn convert(self, nscssvalue: &mut nsCSSValue) {
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match self {
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font_feature_settings::T::Normal => nscssvalue.set_normal(),
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font_feature_settings::T::Tag(tags) => {
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nscssvalue.set_pair_list(tags.into_iter().map(|entry| {
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let mut feature = nsCSSValue::null();
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let mut raw = [0u8; 4];
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(&mut raw[..]).write_u32::<BigEndian>(entry.tag).unwrap();
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feature.set_string(str::from_utf8(&raw).unwrap());
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let mut index = nsCSSValue::null();
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index.set_integer(entry.value as i32);
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(feature, index)
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}))
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}
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}
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}
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}
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macro_rules! map_enum {
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macro_rules! map_enum {
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(
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(
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$(
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$(
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@ -115,6 +137,18 @@ impl ToNsCssValue for Vec<UnicodeRange> {
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}
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}
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}
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}
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impl ToNsCssValue for FontDisplay {
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fn convert(self, nscssvalue: &mut nsCSSValue) {
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nscssvalue.set_enum(match self {
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FontDisplay::Auto => structs::NS_FONT_DISPLAY_AUTO,
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FontDisplay::Block => structs::NS_FONT_DISPLAY_BLOCK,
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FontDisplay::Swap => structs::NS_FONT_DISPLAY_SWAP,
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FontDisplay::Fallback => structs::NS_FONT_DISPLAY_FALLBACK,
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FontDisplay::Optional => structs::NS_FONT_DISPLAY_OPTIONAL,
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} as i32)
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}
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}
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impl From<FontFaceRuleData> for FontFaceRule {
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impl From<FontFaceRuleData> for FontFaceRule {
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fn from(data: FontFaceRuleData) -> FontFaceRule {
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fn from(data: FontFaceRuleData) -> FontFaceRule {
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let mut result = unsafe {
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let mut result = unsafe {
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|
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@ -83,6 +83,9 @@ extern crate time;
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#[allow(unused_extern_crates)]
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#[allow(unused_extern_crates)]
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extern crate unicode_segmentation;
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extern crate unicode_segmentation;
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#[macro_use]
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mod macros;
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pub mod animation;
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pub mod animation;
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#[allow(missing_docs)] // TODO.
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#[allow(missing_docs)] // TODO.
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#[cfg(feature = "servo")] pub mod attr;
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#[cfg(feature = "servo")] pub mod attr;
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115
components/style/macros.rs
Normal file
115
components/style/macros.rs
Normal file
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@ -0,0 +1,115 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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//! Various macro helpers.
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macro_rules! define_numbered_css_keyword_enum {
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($name: ident: $( $css: expr => $variant: ident = $value: expr ),+,) => {
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define_numbered_css_keyword_enum!($name: $( $css => $variant = $value ),+);
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};
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($name: ident: $( $css: expr => $variant: ident = $value: expr ),+) => {
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#[allow(non_camel_case_types, missing_docs)]
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#[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)]
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#[cfg_attr(feature = "servo", derive(HeapSizeOf, Deserialize, Serialize))]
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pub enum $name {
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$( $variant = $value ),+
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}
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impl $crate::parser::Parse for $name {
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#[allow(missing_docs)]
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fn parse(_context: &$crate::parser::ParserContext, input: &mut ::cssparser::Parser) -> Result<$name, ()> {
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match_ignore_ascii_case! { &try!(input.expect_ident()),
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$( $css => Ok($name::$variant), )+
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_ => Err(())
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}
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}
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}
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impl ::style_traits::values::ToCss for $name {
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fn to_css<W>(&self, dest: &mut W) -> ::std::fmt::Result
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|
where W: ::std::fmt::Write,
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{
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match *self {
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$( $name::$variant => dest.write_str($css) ),+
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}
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}
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}
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}
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}
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/// A macro used to implement HasViewportPercentage trait
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/// for a given type that may never contain viewport units.
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macro_rules! no_viewport_percentage {
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($name: ident) => {
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impl $crate::values::HasViewportPercentage for $name {
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#[inline]
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fn has_viewport_percentage(&self) -> bool {
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false
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}
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}
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};
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}
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/// A macro for implementing `ComputedValueAsSpecified`, `Parse`
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/// and `HasViewportPercentage` traits for the enums defined
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/// using `define_css_keyword_enum` macro.
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///
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/// NOTE: We should either move `Parse` trait to `style_traits`
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|
/// or `define_css_keyword_enum` macro to this crate, but that
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|
/// may involve significant cleanup in both the crates.
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macro_rules! add_impls_for_keyword_enum {
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|
($name:ident) => {
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|
impl $crate::parser::Parse for $name {
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|
#[inline]
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|
fn parse(_context: &$crate::parser::ParserContext,
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|
input: &mut ::cssparser::Parser)
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|
-> Result<Self, ()> {
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|
$name::parse(input)
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|
}
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||||||
|
}
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|
|
||||||
|
impl $crate::values::computed::ComputedValueAsSpecified for $name {}
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|
no_viewport_percentage!($name);
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||||||
|
};
|
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|
}
|
||||||
|
|
||||||
|
macro_rules! define_keyword_type {
|
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|
($name: ident, $css: expr) => {
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|
#[derive(Clone, PartialEq, Copy)]
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|
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
|
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|
#[allow(missing_docs)]
|
||||||
|
pub struct $name;
|
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|
|
||||||
|
impl ::style_traits::ToCss for $name {
|
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|
fn to_css<W>(&self, dest: &mut W) -> ::std::fmt::Result where W: ::std::fmt::Write {
|
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|
write!(dest, $css)
|
||||||
|
}
|
||||||
|
}
|
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|
|
||||||
|
impl $crate::properties::animated_properties::Animatable for $name {
|
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|
#[inline]
|
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|
fn add_weighted(&self, _other: &Self, _self_progress: f64, _other_progress: f64)
|
||||||
|
-> Result<Self, ()> {
|
||||||
|
Ok($name)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl fmt::Debug for $name {
|
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|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
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|
write!(f, $css)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl $crate::parser::Parse for $name {
|
||||||
|
fn parse(_context: &$crate::parser::ParserContext,
|
||||||
|
input: &mut ::cssparser::Parser)
|
||||||
|
-> Result<$name, ()> {
|
||||||
|
input.expect_ident_matching($css).map(|_| $name)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl $crate::values::computed::ComputedValueAsSpecified for $name {}
|
||||||
|
no_viewport_percentage!($name);
|
||||||
|
};
|
||||||
|
}
|
|
@ -1803,14 +1803,14 @@ ${helpers.single_keyword_system("font-variant-position",
|
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use std::fmt;
|
use std::fmt;
|
||||||
use style_traits::ToCss;
|
use style_traits::ToCss;
|
||||||
|
|
||||||
#[derive(Debug, Clone, PartialEq)]
|
#[derive(Clone, Debug, Eq, PartialEq)]
|
||||||
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
|
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
|
||||||
pub enum T {
|
pub enum T {
|
||||||
Normal,
|
Normal,
|
||||||
Tag(Vec<FeatureTagValue>)
|
Tag(Vec<FeatureTagValue>)
|
||||||
}
|
}
|
||||||
|
|
||||||
#[derive(Debug, Clone, PartialEq)]
|
#[derive(Clone, Debug, Eq, PartialEq)]
|
||||||
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
|
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
|
||||||
pub struct FeatureTagValue {
|
pub struct FeatureTagValue {
|
||||||
pub tag: u32,
|
pub tag: u32,
|
||||||
|
@ -1836,6 +1836,16 @@ ${helpers.single_keyword_system("font-variant-position",
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
impl Parse for T {
|
||||||
|
/// https://www.w3.org/TR/css-fonts-3/#propdef-font-feature-settings
|
||||||
|
fn parse(context: &ParserContext, input: &mut Parser) -> Result<Self, ()> {
|
||||||
|
if input.try(|i| i.expect_ident_matching("normal")).is_ok() {
|
||||||
|
return Ok(T::Normal);
|
||||||
|
}
|
||||||
|
input.parse_comma_separated(|i| FeatureTagValue::parse(context, i)).map(T::Tag)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
impl ToCss for FeatureTagValue {
|
impl ToCss for FeatureTagValue {
|
||||||
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
|
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
|
||||||
use std::str;
|
use std::str;
|
||||||
|
@ -1908,12 +1918,7 @@ ${helpers.single_keyword_system("font-variant-position",
|
||||||
|
|
||||||
/// normal | <feature-tag-value>#
|
/// normal | <feature-tag-value>#
|
||||||
pub fn parse(context: &ParserContext, input: &mut Parser) -> Result<SpecifiedValue, ()> {
|
pub fn parse(context: &ParserContext, input: &mut Parser) -> Result<SpecifiedValue, ()> {
|
||||||
if input.try(|input| input.expect_ident_matching("normal")).is_ok() {
|
computed_value::T::parse(context, input).map(SpecifiedValue::Value)
|
||||||
Ok(SpecifiedValue::Value(computed_value::T::Normal))
|
|
||||||
} else {
|
|
||||||
input.parse_comma_separated(|i| computed_value::FeatureTagValue::parse(context, i))
|
|
||||||
.map(computed_value::T::Tag).map(SpecifiedValue::Value)
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
</%helpers:longhand>
|
</%helpers:longhand>
|
||||||
|
|
||||||
|
|
|
@ -11,81 +11,12 @@
|
||||||
use Atom;
|
use Atom;
|
||||||
pub use cssparser::{RGBA, Token, Parser, serialize_identifier, serialize_string};
|
pub use cssparser::{RGBA, Token, Parser, serialize_identifier, serialize_string};
|
||||||
use parser::{Parse, ParserContext};
|
use parser::{Parse, ParserContext};
|
||||||
use properties::animated_properties::Animatable;
|
|
||||||
use std::ascii::AsciiExt;
|
use std::ascii::AsciiExt;
|
||||||
use std::borrow::Cow;
|
use std::borrow::Cow;
|
||||||
use std::fmt::{self, Debug};
|
use std::fmt::{self, Debug};
|
||||||
use std::hash;
|
use std::hash;
|
||||||
use style_traits::ToCss;
|
use style_traits::ToCss;
|
||||||
|
|
||||||
macro_rules! define_numbered_css_keyword_enum {
|
|
||||||
($name: ident: $( $css: expr => $variant: ident = $value: expr ),+,) => {
|
|
||||||
define_numbered_css_keyword_enum!($name: $( $css => $variant = $value ),+);
|
|
||||||
};
|
|
||||||
($name: ident: $( $css: expr => $variant: ident = $value: expr ),+) => {
|
|
||||||
#[allow(non_camel_case_types, missing_docs)]
|
|
||||||
#[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)]
|
|
||||||
#[cfg_attr(feature = "servo", derive(HeapSizeOf, Deserialize, Serialize))]
|
|
||||||
pub enum $name {
|
|
||||||
$( $variant = $value ),+
|
|
||||||
}
|
|
||||||
|
|
||||||
impl Parse for $name {
|
|
||||||
#[allow(missing_docs)]
|
|
||||||
fn parse(_context: &ParserContext, input: &mut ::cssparser::Parser) -> Result<$name, ()> {
|
|
||||||
match_ignore_ascii_case! { &try!(input.expect_ident()),
|
|
||||||
$( $css => Ok($name::$variant), )+
|
|
||||||
_ => Err(())
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
impl ToCss for $name {
|
|
||||||
fn to_css<W>(&self, dest: &mut W) -> ::std::fmt::Result
|
|
||||||
where W: ::std::fmt::Write,
|
|
||||||
{
|
|
||||||
match *self {
|
|
||||||
$( $name::$variant => dest.write_str($css) ),+
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/// A macro used to implement HasViewportPercentage trait
|
|
||||||
/// for a given type that may never contain viewport units.
|
|
||||||
macro_rules! no_viewport_percentage {
|
|
||||||
($name: ident) => {
|
|
||||||
impl $crate::values::HasViewportPercentage for $name {
|
|
||||||
#[inline]
|
|
||||||
fn has_viewport_percentage(&self) -> bool {
|
|
||||||
false
|
|
||||||
}
|
|
||||||
}
|
|
||||||
};
|
|
||||||
}
|
|
||||||
|
|
||||||
/// A macro for implementing `ComputedValueAsSpecified`, `Parse`
|
|
||||||
/// and `HasViewportPercentage` traits for the enums defined
|
|
||||||
/// using `define_css_keyword_enum` macro.
|
|
||||||
///
|
|
||||||
/// NOTE: We should either move `Parse` trait to `style_traits`
|
|
||||||
/// or `define_css_keyword_enum` macro to this crate, but that
|
|
||||||
/// may involve significant cleanup in both the crates.
|
|
||||||
macro_rules! add_impls_for_keyword_enum {
|
|
||||||
($name:ident) => {
|
|
||||||
impl Parse for $name {
|
|
||||||
#[inline]
|
|
||||||
fn parse(_context: &ParserContext, input: &mut ::cssparser::Parser) -> Result<Self, ()> {
|
|
||||||
$name::parse(input)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
impl ComputedValueAsSpecified for $name {}
|
|
||||||
no_viewport_percentage!($name);
|
|
||||||
};
|
|
||||||
}
|
|
||||||
|
|
||||||
pub mod computed;
|
pub mod computed;
|
||||||
pub mod generics;
|
pub mod generics;
|
||||||
pub mod specified;
|
pub mod specified;
|
||||||
|
@ -112,46 +43,6 @@ impl<T: HasViewportPercentage> HasViewportPercentage for Box<T> {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
use self::computed::ComputedValueAsSpecified;
|
|
||||||
|
|
||||||
macro_rules! define_keyword_type {
|
|
||||||
($name: ident, $css: expr) => {
|
|
||||||
#[derive(Clone, PartialEq, Copy)]
|
|
||||||
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
|
|
||||||
#[allow(missing_docs)]
|
|
||||||
pub struct $name;
|
|
||||||
|
|
||||||
impl ::style_traits::ToCss for $name {
|
|
||||||
fn to_css<W>(&self, dest: &mut W) -> ::std::fmt::Result where W: ::std::fmt::Write {
|
|
||||||
write!(dest, $css)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
impl Animatable for $name {
|
|
||||||
#[inline]
|
|
||||||
fn add_weighted(&self, _other: &Self, _self_progress: f64, _other_progress: f64)
|
|
||||||
-> Result<Self, ()> {
|
|
||||||
Ok($name)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
impl fmt::Debug for $name {
|
|
||||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
||||||
write!(f, $css)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
impl Parse for $name {
|
|
||||||
fn parse(_context: &ParserContext, input: &mut ::cssparser::Parser) -> Result<$name, ()> {
|
|
||||||
input.expect_ident_matching($css).map(|_| $name)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
impl ComputedValueAsSpecified for $name {}
|
|
||||||
no_viewport_percentage!($name);
|
|
||||||
};
|
|
||||||
}
|
|
||||||
|
|
||||||
define_keyword_type!(None_, "none");
|
define_keyword_type!(None_, "none");
|
||||||
define_keyword_type!(Auto, "auto");
|
define_keyword_type!(Auto, "auto");
|
||||||
define_keyword_type!(Normal, "normal");
|
define_keyword_type!(Normal, "normal");
|
||||||
|
|
|
@ -12,8 +12,8 @@ use parser::{Parse, ParserContext};
|
||||||
use std::fmt;
|
use std::fmt;
|
||||||
use style_traits::ToCss;
|
use style_traits::ToCss;
|
||||||
use values::HasViewportPercentage;
|
use values::HasViewportPercentage;
|
||||||
use values::computed::{CalcLengthOrPercentage, ComputedValueAsSpecified, Context};
|
use values::computed::{CalcLengthOrPercentage, LengthOrPercentage as ComputedLengthOrPercentage};
|
||||||
use values::computed::{LengthOrPercentage as ComputedLengthOrPercentage, ToComputedValue};
|
use values::computed::{Context, ToComputedValue};
|
||||||
use values::generics::position::Position as GenericPosition;
|
use values::generics::position::Position as GenericPosition;
|
||||||
use values::specified::{AllowQuirks, LengthOrPercentage, Percentage};
|
use values::specified::{AllowQuirks, LengthOrPercentage, Percentage};
|
||||||
|
|
||||||
|
|
Loading…
Add table
Add a link
Reference in a new issue