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Move ParsingMode into style_traits.

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This commit is contained in:
Hiroyuki Ikezoe 2017-06-14 09:51:35 +09:00
parent 849bdc958c
commit 8bfed4cb3c
23 changed files with 73 additions and 62 deletions
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30
components/style_traits/lib.rs
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@ -14,6 +14,7 @@
#![cfg_attr(feature = "servo", feature(plugin))]
extern crate app_units;
#[macro_use] extern crate bitflags;
#[macro_use] extern crate cssparser;
extern crate euclid;
#[cfg(feature = "servo")] extern crate heapsize;
@ -140,3 +141,32 @@ impl<'a> From<PropertyDeclarationParseError> for ParseError<'a> {
cssparser::ParseError::Custom(SelectorParseError::Custom(StyleParseError::PropertyDeclaration(this)))
}
}
bitflags! {
/// The mode to use when parsing values.
pub flags ParsingMode: u8 {
/// In CSS, lengths must have units, except for zero values, where the unit can be omitted.
/// https://www.w3.org/TR/css3-values/#lengths
const PARSING_MODE_DEFAULT = 0x00,
/// In SVG, a coordinate or length value without a unit identifier (e.g., "25") is assumed
/// to be in user units (px).
/// https://www.w3.org/TR/SVG/coords.html#Units
const PARSING_MODE_ALLOW_UNITLESS_LENGTH = 0x01,
/// In SVG, out-of-range values are not treated as an error in parsing.
/// https://www.w3.org/TR/SVG/implnote.html#RangeClamping
const PARSING_MODE_ALLOW_ALL_NUMERIC_VALUES = 0x02,
}
}
impl ParsingMode {
/// Whether the parsing mode allows unitless lengths for non-zero values to be intpreted as px.
pub fn allows_unitless_lengths(&self) -> bool {
self.intersects(PARSING_MODE_ALLOW_UNITLESS_LENGTH)
}
/// Whether the parsing mode allows all numeric values.
pub fn allows_all_numeric_values(&self) -> bool {
self.intersects(PARSING_MODE_ALLOW_ALL_NUMERIC_VALUES)
}
}