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style: Rename justify-items: auto to legacy.

Browse source 
Bug: 1363875
Reviewed-by: mats,xidorn
MozReview-Commit-ID: Jfwib2XDmSw
This commit is contained in:
Emilio Cobos Álvarez 2018-04-19 17:50:32 +02:00
parent 625634a027
commit 593e4e4c9e
No known key found for this signature in database
GPG key ID: 056B727BB9C1027C
5 changed files with 74 additions and 71 deletions
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98
components/style/values/specified/align.rs
View file

@ -9,9 +9,8 @@
use cssparser::Parser;
use gecko_bindings::structs;
use parser::{Parse, ParserContext};
use selectors::parser::SelectorParseErrorKind;
use std::fmt::{self, Write};
use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
use style_traits::{CssWriter, ParseError, ToCss};
bitflags! {
/// Constants shared by multiple CSS Box Alignment properties
@ -81,14 +80,26 @@ impl ToCss for AlignFlags {
where
W: Write,
{
match *self & AlignFlags::FLAG_BITS {
AlignFlags::LEGACY => dest.write_str("legacy ")?,
let extra_flags = *self & AlignFlags::FLAG_BITS;
let value = self.value();
match extra_flags {
AlignFlags::LEGACY => {
dest.write_str("legacy")?;
if value.is_empty() {
return Ok(());
}
dest.write_char(' ')?;
},
AlignFlags::SAFE => dest.write_str("safe ")?,
// Don't serialize "unsafe", since it's the default.
_ => {},
AlignFlags::UNSAFE => {},
_ => {
debug_assert_eq!(extra_flags, AlignFlags::empty());
},
}
dest.write_str(match self.value() {
dest.write_str(match value {
AlignFlags::AUTO => "auto",
AlignFlags::NORMAL => "normal",
AlignFlags::START => "start",
@ -436,10 +447,10 @@ impl Parse for AlignItems {
pub struct JustifyItems(pub AlignFlags);
impl JustifyItems {
/// The initial value 'auto'
/// The initial value 'legacy'
#[inline]
pub fn auto() -> Self {
JustifyItems(AlignFlags::AUTO)
pub fn legacy() -> Self {
JustifyItems(AlignFlags::LEGACY)
}
/// The value 'normal'
@ -462,24 +473,12 @@ impl Parse for JustifyItems {
return Ok(JustifyItems(baseline));
}
// auto | normal | stretch
//
// FIXME(emilio): auto is no longer a keyword in the current spec, and
// has been renamed to legacy, but that needs different changes because
// right now it's the initial value for both style systems, and has that
// weird behavior of "inheriting" into descendants.
//
// Fix this in both.
//
// See also:
// https://bugs.webkit.org/show_bug.cgi?id=172711
// https://bugs.chromium.org/p/chromium/issues/detail?id=726148
//
if let Ok(value) = input.try(parse_auto_normal_stretch) {
// normal | stretch
if let Ok(value) = input.try(parse_normal_stretch) {
return Ok(JustifyItems(value));
}
// [ legacy || [ left | right | center ] ]
// legacy | [ legacy && [ left | right | center ] ]
if let Ok(value) = input.try(parse_legacy) {
return Ok(JustifyItems(value));
}
@ -567,29 +566,30 @@ fn parse_self_position<'i, 't>(
})
}
// [ legacy && [ left | right | center ] ]
fn parse_legacy<'i, 't>(input: &mut Parser<'i, 't>) -> Result<AlignFlags, ParseError<'i>> {
let a_location = input.current_source_location();
let a = input.expect_ident()?.clone();
let b_location = input.current_source_location();
let b = input.expect_ident()?;
if a.eq_ignore_ascii_case("legacy") {
(match_ignore_ascii_case! { &b,
"left" => Ok(AlignFlags::LEGACY | AlignFlags::LEFT),
"right" => Ok(AlignFlags::LEGACY | AlignFlags::RIGHT),
"center" => Ok(AlignFlags::LEGACY | AlignFlags::CENTER),
_ => Err(())
}).map_err(|()| {
b_location.new_custom_error(SelectorParseErrorKind::UnexpectedIdent(b.clone()))
})
} else if b.eq_ignore_ascii_case("legacy") {
(match_ignore_ascii_case! { &a,
"left" => Ok(AlignFlags::LEGACY | AlignFlags::LEFT),
"right" => Ok(AlignFlags::LEGACY | AlignFlags::RIGHT),
"center" => Ok(AlignFlags::LEGACY | AlignFlags::CENTER),
_ => Err(())
}).map_err(|()| a_location.new_custom_error(SelectorParseErrorKind::UnexpectedIdent(a)))
} else {
Err(a_location.new_custom_error(StyleParseErrorKind::UnspecifiedError))
}
fn parse_left_right_center<'i, 't>(
input: &mut Parser<'i, 't>,
) -> Result<AlignFlags, ParseError<'i>> {
Ok(try_match_ident_ignore_ascii_case! { input,
"left" => AlignFlags::LEFT,
"right" => AlignFlags::RIGHT,
"center" => AlignFlags::CENTER,
})
}
// legacy | [ legacy && [ left | right | center ] ]
fn parse_legacy<'i, 't>(input: &mut Parser<'i, 't>) -> Result<AlignFlags, ParseError<'i>> {
let flags = try_match_ident_ignore_ascii_case! { input,
"legacy" => {
let flags = input.try(parse_left_right_center)
.unwrap_or(AlignFlags::empty());
return Ok(AlignFlags::LEGACY | flags)
}
"left" => AlignFlags::LEFT,
"right" => AlignFlags::RIGHT,
"center" => AlignFlags::CENTER,
};
input.expect_ident_matching("legacy")?;
Ok(AlignFlags::LEGACY | flags)
}