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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
<%namespace name="helpers" file="/helpers.mako.rs" />
${helpers.two_properties_shorthand(
"overflow",
"overflow-x",
"overflow-y",
engines="gecko servo",
)}
${helpers.two_properties_shorthand(
"overscroll-behavior",
"overscroll-behavior-x",
"overscroll-behavior-y",
engines="gecko",
)}
<%helpers:shorthand
engines="gecko"
name="container"
sub_properties="container-name container-type"
>
use crate::values::specified::box_::{ContainerName, ContainerType};
pub fn parse_value<'i>(
context: &ParserContext,
input: &mut Parser<'i, '_>,
) -> Result<Longhands, ParseError<'i>> {
use crate::parser::Parse;
// match the spec.
let container_name = ContainerName::parse(context, input)?;
let container_type = if input.try_parse(|input| input.expect_delim('/')).is_ok() {
ContainerType::parse(context, input)?
} else {
ContainerType::NORMAL
};
Ok(expanded! {
container_name: container_name,
container_type: container_type,
})
}
impl<'a> ToCss for LonghandsToSerialize<'a> {
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result where W: fmt::Write {
self.container_name.to_css(dest)?;
if !self.container_type.is_normal() {
dest.write_str(" / ")?;
self.container_type.to_css(dest)?;
}
Ok(())
}
}
</%helpers:shorthand>
<%helpers:shorthand
engines="gecko"
name="page-break-before"
flags="IS_LEGACY_SHORTHAND"
sub_properties="break-before"
>
pub fn parse_value<'i>(
context: &ParserContext,
input: &mut Parser<'i, '_>,
) -> Result<Longhands, ParseError<'i>> {
use crate::values::specified::box_::BreakBetween;
Ok(expanded! {
break_before: BreakBetween::parse_legacy(context, input)?,
})
}
impl<'a> ToCss for LonghandsToSerialize<'a> {
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result where W: fmt::Write {
self.break_before.to_css_legacy(dest)
}
}
</%helpers:shorthand>
<%helpers:shorthand
engines="gecko"
name="page-break-after"
flags="IS_LEGACY_SHORTHAND"
sub_properties="break-after"
>
pub fn parse_value<'i>(
context: &ParserContext,
input: &mut Parser<'i, '_>,
) -> Result<Longhands, ParseError<'i>> {
use crate::values::specified::box_::BreakBetween;
Ok(expanded! {
break_after: BreakBetween::parse_legacy(context, input)?,
})
}
impl<'a> ToCss for LonghandsToSerialize<'a> {
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result where W: fmt::Write {
self.break_after.to_css_legacy(dest)
}
}
</%helpers:shorthand>
<%helpers:shorthand
engines="gecko"
name="page-break-inside"
flags="IS_LEGACY_SHORTHAND"
sub_properties="break-inside"
>
pub fn parse_value<'i>(
context: &ParserContext,
input: &mut Parser<'i, '_>,
) -> Result<Longhands, ParseError<'i>> {
use crate::values::specified::box_::BreakWithin;
Ok(expanded! {
break_inside: BreakWithin::parse_legacy(context, input)?,
})
}
impl<'a> ToCss for LonghandsToSerialize<'a> {
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result where W: fmt::Write {
self.break_inside.to_css_legacy(dest)
}
}
</%helpers:shorthand>
<%helpers:shorthand name="offset"
engines="gecko"
sub_properties="offset-path offset-distance offset-rotate offset-anchor
offset-position"
use crate::parser::Parse;
use crate::values::specified::motion::{OffsetPath, OffsetPosition, OffsetRotate};
use crate::values::specified::{LengthPercentage, PositionOrAuto};
use crate::Zero;
pub fn parse_value<'i, 't>(
context: &ParserContext,
input: &mut Parser<'i, 't>,
) -> Result<Longhands, ParseError<'i>> {
let offset_position = input.try_parse(|i| OffsetPosition::parse(context, i)).ok();
let offset_path = input.try_parse(|i| OffsetPath::parse(context, i)).ok();
// Must have one of [offset-position, offset-path].
// FIXME: The syntax is out-of-date after the update of the spec.
if offset_position.is_none() && offset_path.is_none() {
return Err(input.new_custom_error(StyleParseErrorKind::UnspecifiedError));
}
let mut offset_distance = None;
let mut offset_rotate = None;
// offset-distance and offset-rotate are grouped with offset-path.
if offset_path.is_some() {
loop {
if offset_distance.is_none() {
if let Ok(value) = input.try_parse(|i| LengthPercentage::parse(context, i)) {
offset_distance = Some(value);
}
}
if offset_rotate.is_none() {
if let Ok(value) = input.try_parse(|i| OffsetRotate::parse(context, i)) {
offset_rotate = Some(value);
continue;
}
}
break;
}
}
let offset_anchor = input.try_parse(|i| {
i.expect_delim('/')?;
PositionOrAuto::parse(context, i)
}).ok();
Ok(expanded! {
offset_position: offset_position.unwrap_or(OffsetPosition::normal()),
offset_path: offset_path.unwrap_or(OffsetPath::none()),
offset_distance: offset_distance.unwrap_or(LengthPercentage::zero()),
offset_rotate: offset_rotate.unwrap_or(OffsetRotate::auto()),
offset_anchor: offset_anchor.unwrap_or(PositionOrAuto::auto()),
})
}
impl<'a> ToCss for LonghandsToSerialize<'a> {
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result where W: fmt::Write {
// The basic concept is: we must serialize offset-position or offset-path group.
// offset-path group means "offset-path offset-distance offset-rotate".
let must_serialize_path = *self.offset_path != OffsetPath::None
|| (!self.offset_distance.is_zero() || !self.offset_rotate.is_auto());
let position_is_default = matches!(self.offset_position, OffsetPosition::Normal);
if !position_is_default || !must_serialize_path {
self.offset_position.to_css(dest)?;
}
if must_serialize_path {
if !position_is_default {
dest.write_char(' ')?;
}
self.offset_path.to_css(dest)?;
}
if !self.offset_distance.is_zero() {
dest.write_char(' ')?;
self.offset_distance.to_css(dest)?;
}
if !self.offset_rotate.is_auto() {
dest.write_char(' ')?;
self.offset_rotate.to_css(dest)?;
}
if *self.offset_anchor != PositionOrAuto::auto() {
dest.write_str(" / ")?;
self.offset_anchor.to_css(dest)?;
}
Ok(())
}
}
</%helpers:shorthand>