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LibWeb: Plumbing for svg stroke-dasharray

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Nico Weber 2024-11-20 19:23:10 -05:00 • committed by Alexander Kalenik
commit 94b97aa365
Notes: github-actions[bot] 2024-11-21 17:57:47 +00:00
10 changed files with 277 additions and 172 deletions
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36
Libraries/LibWeb/CSS/Parser/Parser.cpp
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@ -5017,6 +5017,38 @@ RefPtr<CSSStyleValue> Parser::parse_rotate_value(TokenStream<ComponentValue>& to
return nullptr;
}
RefPtr<CSSStyleValue> Parser::parse_stroke_dasharray_value(TokenStream<ComponentValue>& tokens)
{
// https://svgwg.org/svg2-draft/painting.html#StrokeDashing
// Value: none | <dasharray>
if (auto none = parse_all_as_single_keyword_value(tokens, Keyword::None))
return none;
// https://svgwg.org/svg2-draft/painting.html#DataTypeDasharray
// <dasharray> = [ [ <length-percentage> | <number> ]+ ]#
Vector<ValueComparingNonnullRefPtr<CSSStyleValue const>> dashes;
while (tokens.has_next_token()) {
tokens.discard_whitespace();
// A <dasharray> is a list of comma and/or white space separated <number> or <length-percentage> values. A <number> value represents a value in user units.
auto value = parse_number_value(tokens);
if (value) {
dashes.append(value.release_nonnull());
} else {
auto value = parse_length_percentage_value(tokens);
if (!value)
return {};
dashes.append(value.release_nonnull());
}
tokens.discard_whitespace();
if (tokens.has_next_token() && tokens.next_token().is(Token::Type::Comma))
tokens.discard_a_token();
}
return StyleValueList::create(move(dashes), StyleValueList::Separator::Comma);
}
RefPtr<CSSStyleValue> Parser::parse_content_value(TokenStream<ComponentValue>& tokens)
{
// FIXME: `content` accepts several kinds of function() type, which we don't handle in property_accepts_value() yet.
@ -7885,6 +7917,10 @@ Parser::ParseErrorOr<NonnullRefPtr<CSSStyleValue>> Parser::parse_css_value(Prope
if (auto parsed_value = parse_scrollbar_gutter_value(tokens); parsed_value && !tokens.has_next_token())
return parsed_value.release_nonnull();
return ParseError::SyntaxError;
case PropertyID::StrokeDasharray:
if (auto parsed_value = parse_stroke_dasharray_value(tokens); parsed_value && !tokens.has_next_token())
return parsed_value.release_nonnull();
return ParseError::SyntaxError;
case PropertyID::TextDecoration:
if (auto parsed_value = parse_text_decoration_value(tokens); parsed_value && !tokens.has_next_token())
return parsed_value.release_nonnull();