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Implement the Servo parser for FontFaceSet Web API.

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This commit is contained in:
Boris Chiou 2017-12-05 13:50:50 +08:00
parent 1e29e64000
commit aa52e644fe
2 changed files with 61 additions and 0 deletions
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3
components/style/gecko/generated/bindings.rs
View file

@ -2162,6 +2162,9 @@ extern "C" {
} extern "C" {
# [ link_name = "\u{1}_Servo_ParseFontDescriptor" ]
pub fn Servo_ParseFontDescriptor ( desc_id : nsCSSFontDesc , value : * const nsAString , data : * mut RawGeckoURLExtraData , arg1 : nsCSSValueBorrowedMut , ) -> bool ;
} extern "C" {
# [ link_name = "\u{1}_Servo_ParseFontShorthandForMatching" ]
pub fn Servo_ParseFontShorthandForMatching ( value : * const nsAString , data : * mut RawGeckoURLExtraData , family : * mut RefPtr < SharedFontList > , style : nsCSSValueBorrowedMut , stretch : nsCSSValueBorrowedMut , weight : nsCSSValueBorrowedMut , ) -> bool ;
} extern "C" {
# [ link_name = "\u{1}_Gecko_CreateCSSErrorReporter" ]
pub fn Gecko_CreateCSSErrorReporter ( sheet : * mut ServoStyleSheet , loader : * mut Loader , uri : * mut nsIURI , ) -> * mut ErrorReporter ;

58
ports/geckolib/glue.rs
View file

@ -4810,6 +4810,64 @@ pub extern "C" fn Servo_ParseFontDescriptor(
true
}
#[no_mangle]
pub extern "C" fn Servo_ParseFontShorthandForMatching(
value: *const nsAString,
data: *mut URLExtraData,
family: *mut structs::RefPtr<structs::SharedFontList>,
style: nsCSSValueBorrowedMut,
stretch: nsCSSValueBorrowedMut,
weight: nsCSSValueBorrowedMut
) -> bool {
use style::properties::longhands::{font_stretch, font_style};
use style::properties::shorthands::font;
use style::values::specified::font::{FontFamily, FontWeight};
let string = unsafe { (*value).to_string() };
let mut input = ParserInput::new(&string);
let mut parser = Parser::new(&mut input);
let url_data = unsafe { RefPtr::from_ptr_ref(&data) };
let context = ParserContext::new(
Origin::Author,
url_data,
Some(CssRuleType::FontFace),
ParsingMode::DEFAULT,
QuirksMode::NoQuirks,
);
let font = match parser.parse_entirely(|f| font::parse_value(&context, f)) {
Ok(f) => f,
Err(..) => return false,
};
// The system font is not acceptable, so we return false.
let family = unsafe { &mut *family };
match font.font_family {
FontFamily::Values(list) => family.set_move(list.0),
FontFamily::System(_) => return false,
}
style.set_from(match font.font_style {
font_style::SpecifiedValue::Keyword(kw) => kw,
font_style::SpecifiedValue::System(_) => return false,
});
stretch.set_from(match font.font_stretch {
font_stretch::SpecifiedValue::Keyword(kw) => kw,
font_stretch::SpecifiedValue::System(_) => return false,
});
match font.font_weight {
FontWeight::Weight(w) => weight.set_from(w),
FontWeight::Normal => weight.set_enum(structs::NS_STYLE_FONT_WEIGHT_NORMAL as i32),
FontWeight::Bold => weight.set_enum(structs::NS_STYLE_FONT_WEIGHT_BOLD as i32),
// Resolve relative font weights against the initial of font-weight
// (normal, which is equivalent to 400).
FontWeight::Bolder => weight.set_enum(structs::NS_FONT_WEIGHT_BOLD as i32),
FontWeight::Lighter => weight.set_enum(structs::NS_FONT_WEIGHT_THIN as i32),
FontWeight::System(_) => return false,
}
true
}
#[no_mangle]
pub unsafe extern "C" fn Servo_SourceSizeList_Parse(
value: *const nsACString,