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LibWeb: Parse line names in grid track position properties

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Parse line names when passed to the grid-column/row-start/end CSS
properties.
This commit is contained in:
martinfalisse 2022-10-30 13:46:50 +01:00 • committed by Andreas Kling
parent 78a573d678
commit 829f56572d
3 changed files with 42 additions and 1 deletions
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19
Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
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@ -5655,6 +5655,13 @@ RefPtr<StyleValue> Parser::parse_grid_track_placement(Vector<ComponentValue> con
return true;
return false;
};
auto is_line_name = [](Token token) -> bool {
// The <custom-ident> additionally excludes the keywords span and auto.
if (token.is(Token::Type::Ident) && !token.ident().equals_ignoring_case("span"sv) && !token.ident().equals_ignoring_case("auto"sv))
return true;
return false;
};
auto tokens = TokenStream { component_values };
tokens.skip_whitespace();
auto current_token = tokens.next_token().token();
@ -5666,11 +5673,14 @@ RefPtr<StyleValue> Parser::parse_grid_track_placement(Vector<ComponentValue> con
return GridTrackPlacementStyleValue::create(CSS::GridTrackPlacement(1, true));
if (is_valid_integer(current_token))
return GridTrackPlacementStyleValue::create(CSS::GridTrackPlacement(static_cast<int>(current_token.number_value())));
if (is_line_name(current_token))
return GridTrackPlacementStyleValue::create(CSS::GridTrackPlacement(current_token.ident()));
return {};
}
auto span_value = false;
auto span_or_position_value = 0;
String line_name_value;
while (true) {
if (is_auto(current_token))
return {};
@ -5686,6 +5696,12 @@ RefPtr<StyleValue> Parser::parse_grid_track_placement(Vector<ComponentValue> con
else
return {};
}
if (is_line_name(current_token)) {
if (line_name_value.is_empty())
line_name_value = current_token.ident();
else
return {};
}
tokens.skip_whitespace();
if (tokens.has_next_token())
current_token = tokens.next_token().token();
@ -5700,6 +5716,9 @@ RefPtr<StyleValue> Parser::parse_grid_track_placement(Vector<ComponentValue> con
// If the <integer> is omitted, it defaults to 1.
if (span_or_position_value == 0)
span_or_position_value = 1;
if (!line_name_value.is_empty())
return GridTrackPlacementStyleValue::create(CSS::GridTrackPlacement(line_name_value, span_or_position_value, span_value));
return GridTrackPlacementStyleValue::create(CSS::GridTrackPlacement(span_or_position_value, span_value));
}