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75 lines
2.2 KiB
Rust
75 lines
2.2 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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//! Specified types for CSS values that are related to motion path.
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use crate::parser::{Parse, ParserContext};
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use crate::values::specified::SVGPathData;
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use cssparser::Parser;
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use style_traits::{ParseError, StyleParseErrorKind};
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/// The offset-path value.
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///
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/// https://drafts.fxtf.org/motion-1/#offset-path-property
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#[derive(
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Animate,
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Clone,
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ComputeSquaredDistance,
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Debug,
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MallocSizeOf,
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PartialEq,
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SpecifiedValueInfo,
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ToAnimatedZero,
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ToComputedValue,
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ToCss,
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ToResolvedValue,
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ToShmem,
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)]
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pub enum OffsetPath {
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// We could merge SVGPathData into ShapeSource, so we could reuse them. However,
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// we don't want to support other value for offset-path, so use SVGPathData only for now.
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/// Path value for path(<string>).
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#[css(function)]
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Path(SVGPathData),
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/// None value.
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#[animation(error)]
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None,
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// Bug 1186329: Implement ray(), <basic-shape>, <geometry-box>, and <url>.
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}
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impl OffsetPath {
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/// Return None.
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#[inline]
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pub fn none() -> Self {
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OffsetPath::None
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}
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}
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impl Parse for OffsetPath {
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fn parse<'i, 't>(
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context: &ParserContext,
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input: &mut Parser<'i, 't>,
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) -> Result<Self, ParseError<'i>> {
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// Parse none.
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if input.try(|i| i.expect_ident_matching("none")).is_ok() {
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return Ok(OffsetPath::none());
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}
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// Parse possible functions.
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let location = input.current_source_location();
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let function = input.expect_function()?.clone();
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input.parse_nested_block(move |i| {
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match_ignore_ascii_case! { &function,
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// Bug 1186329: Implement the parser for ray(), <basic-shape>, <geometry-box>,
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// and <url>.
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"path" => SVGPathData::parse(context, i).map(OffsetPath::Path),
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_ => {
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Err(location.new_custom_error(
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StyleParseErrorKind::UnexpectedFunction(function.clone())
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))
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},
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}
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})
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}
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}
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