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style: Unship line-height: -moz-block-height.

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They're only used in forms.css, and only for some anonymous content, which are
not content-accessible in the first place.

The only place where this could be exposed is calling
getComputedStyle(input, "::placeholder"), so I think this should be pretty safe,
but I've added a pref just in case.

While at it, also derive the Parse implementation. Less code is better.

Differential Revision: https://phabricator.services.mozilla.com/D25118
This commit is contained in:
Emilio Cobos Álvarez 2019-03-29 11:11:27 +00:00
parent bd77cd64b9
commit 7b14499665
2 changed files with 10 additions and 27 deletions
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27
components/style/values/specified/text.rs
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@ -73,33 +73,6 @@ impl Parse for WordSpacing {
}
}
impl Parse for LineHeight {
fn parse<'i, 't>(
context: &ParserContext,
input: &mut Parser<'i, 't>,
) -> Result<Self, ParseError<'i>> {
if let Ok(number) = input.try(|i| NonNegativeNumber::parse(context, i)) {
return Ok(GenericLineHeight::Number(number));
}
if let Ok(nlp) = input.try(|i| NonNegativeLengthPercentage::parse(context, i)) {
return Ok(GenericLineHeight::Length(nlp));
}
let location = input.current_source_location();
let ident = input.expect_ident()?;
match ident {
ref ident if ident.eq_ignore_ascii_case("normal") => Ok(GenericLineHeight::Normal),
#[cfg(feature = "gecko")]
ref ident if ident.eq_ignore_ascii_case("-moz-block-height") => {
Ok(GenericLineHeight::MozBlockHeight)
},
ident => {
Err(location
.new_custom_error(SelectorParseErrorKind::UnexpectedIdent(ident.clone())))
},
}
}
}
impl ToComputedValue for LineHeight {
type ComputedValue = ComputedLineHeight;