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LibWeb: Allow any valid <color> in CSS gradients

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We now keep the color value as a StyleValue up until we go to paint the
gradient, which makes `currentColor` work, along with any other color
values that can't be immediately converted into a `Gfx::Color` while
parsing.
This commit is contained in:
Sam Atkins 2023-08-16 12:45:23 +01:00 • committed by Andreas Kling
parent 2971ae59d8
commit 631a988a57
13 changed files with 53 additions and 28 deletions
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14
Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
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@ -2419,7 +2419,7 @@ static Optional<Vector<TElement>> parse_color_stop_list(auto& tokens, auto is_po
return ElementType::Garbage;
auto const& token = tokens.next_token();
Gfx::Color color;
RefPtr<StyleValue> color;
Optional<typename TElement::PositionType> position;
Optional<typename TElement::PositionType> second_position;
auto dimension = parse_dimension(token);
@ -2434,15 +2434,15 @@ static Optional<Vector<TElement>> parse_color_stop_list(auto& tokens, auto is_po
}
// <T-percentage> <color>
auto maybe_color = parse_color(tokens.next_token());
if (!maybe_color.has_value())
if (maybe_color.is_error())
return ElementType::Garbage;
color = *maybe_color;
color = maybe_color.release_value();
} else {
// [<color> <T-percentage>?]
auto maybe_color = parse_color(token);
if (!maybe_color.has_value())
if (maybe_color.is_error())
return ElementType::Garbage;
color = *maybe_color;
color = maybe_color.release_value();
tokens.skip_whitespace();
// Allow up to [<color> <T-percentage> <T-percentage>] (double-position color stops)
// Note: Double-position color stops only appear to be valid in this order.
@ -2503,7 +2503,7 @@ Optional<Vector<LinearColorStopListElement>> Parser::parse_linear_color_stop_lis
tokens,
[](Dimension& dimension) { return dimension.is_length_percentage(); },
[](Dimension& dimension) { return dimension.length_percentage(); },
[&](auto& token) { return parse_color(token); },
[&](auto& token) { return parse_color_value(token); },
[&](auto& token) { return parse_dimension(token); });
}
@ -2515,7 +2515,7 @@ Optional<Vector<AngularColorStopListElement>> Parser::parse_angular_color_stop_l
tokens,
[](Dimension& dimension) { return dimension.is_angle_percentage(); },
[](Dimension& dimension) { return dimension.angle_percentage(); },
[&](auto& token) { return parse_color(token); },
[&](auto& token) { return parse_color_value(token); },
[&](auto& token) { return parse_dimension(token); });
}