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LibWeb: Support calc within linear() easing function

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Callum Law 2025-10-09 23:40:46 +13:00 • committed by Sam Atkins
commit 2f83356c0f
Notes: github-actions[bot] 2025-10-20 10:29:34 +00:00
6 changed files with 94 additions and 34 deletions
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32
Libraries/LibWeb/CSS/Parser/ValueParsing.cpp
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@ -2908,32 +2908,32 @@ RefPtr<StyleValue const> Parser::parse_easing_value(TokenStream<ComponentValue>&
for (auto const& argument : comma_separated_arguments) {
TokenStream argument_tokens { argument };
Optional<double> output;
Optional<double> first_input;
Optional<double> second_input;
RefPtr<StyleValue const> output;
RefPtr<StyleValue const> first_input;
RefPtr<StyleValue const> second_input;
if (argument_tokens.next_token().is(Token::Type::Number))
output = argument_tokens.consume_a_token().token().number_value();
if (auto maybe_output = parse_number_value(argument_tokens))
output = maybe_output;
if (argument_tokens.next_token().is(Token::Type::Percentage)) {
first_input = argument_tokens.consume_a_token().token().percentage() / 100;
if (argument_tokens.next_token().is(Token::Type::Percentage)) {
second_input = argument_tokens.consume_a_token().token().percentage() / 100;
if (auto maybe_first_input = parse_percentage_value(argument_tokens)) {
first_input = maybe_first_input;
if (auto maybe_second_input = parse_percentage_value(argument_tokens)) {
second_input = maybe_second_input;
}
}
if (argument_tokens.next_token().is(Token::Type::Number)) {
if (output.has_value())
if (auto maybe_output = parse_number_value(argument_tokens)) {
if (output)
return nullptr;
output = argument_tokens.consume_a_token().token().number_value();
output = maybe_output;
}
if (argument_tokens.has_next_token() || !output.has_value())
if (argument_tokens.has_next_token() || !output)
return nullptr;
stops.append({ output.value(), first_input });
if (second_input.has_value())
stops.append({ output.value(), second_input });
stops.append({ *output, first_input });
if (second_input)
stops.append({ *output, second_input });
}
if (stops.is_empty())