takumi_css/style/properties/grid/
grid_area.rs

1use crate::style::unexpected_token;
2use cssparser::Parser;
3
4use crate::style::{CssSyntaxKind, CssToken, FromCss, GridPlacement, ParseResult};
5
6/// Represents the `grid-area` shorthand.
7#[derive(Debug, Clone, PartialEq, Default)]
8pub struct GridArea {
9  /// The grid row start line.
10  pub row_start: GridPlacement,
11  /// The grid column start line.
12  pub column_start: GridPlacement,
13  /// The grid row end line.
14  pub row_end: GridPlacement,
15  /// The grid column end line.
16  pub column_end: GridPlacement,
17}
18
19impl<'i> FromCss<'i> for GridArea {
20  const VALID_TOKENS: &'static [CssToken] = &[
21    CssToken::Keyword("auto"),
22    CssToken::Keyword("span"),
23    CssToken::Syntax(CssSyntaxKind::Ident),
24    CssToken::Syntax(CssSyntaxKind::Number),
25  ];
26
27  fn from_css(input: &mut Parser<'i, '_>) -> ParseResult<'i, Self> {
28    let mut values = vec![GridPlacement::from_css(input)?];
29
30    while values.len() < 4 && input.try_parse(|parser| parser.expect_delim('/')).is_ok() {
31      values.push(GridPlacement::from_css(input)?);
32    }
33
34    if !input.is_exhausted() {
35      return Err(unexpected_token!(
36        input.current_source_location(),
37        input.next()?,
38      ));
39    }
40
41    let row_start = values[0].clone();
42    let column_start = match values.get(1) {
43      Some(value) => value.clone(),
44      None if matches!(row_start, GridPlacement::Named(_)) => row_start.clone(),
45      None => GridPlacement::default(),
46    };
47    let row_end = match values.get(2) {
48      Some(value) => value.clone(),
49      None if matches!(row_start, GridPlacement::Named(_)) => row_start.clone(),
50      None => GridPlacement::default(),
51    };
52    let column_end = match values.get(3) {
53      Some(value) => value.clone(),
54      None if matches!(column_start, GridPlacement::Named(_)) => column_start.clone(),
55      None => GridPlacement::default(),
56    };
57
58    Ok(Self {
59      row_start,
60      column_start,
61      row_end,
62      column_end,
63    })
64  }
65}
takumi_css/style/properties/grid/grid_area.rs

takumi_css/style/properties/grid/
grid_area.rs
