ladybird/Libraries/LibWeb/CSS/StyleValues/CounterStyleValue.h
Callum Law ed2909674f LibWeb: Add computationally independent check for custom properties
Registered custom properties only accept "computationally independent"
values for their initial value
2026-03-26 01:11:39 +00:00

57 lines
2.1 KiB
C++

/*
* Copyright (c) 2024, Sam Atkins <sam@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/FlyString.h>
#include <LibWeb/CSS/StyleValues/StyleValue.h>
namespace Web::CSS {
// https://drafts.csswg.org/css-lists-3/#counter-functions
class CounterStyleValue : public StyleValueWithDefaultOperators<CounterStyleValue> {
public:
enum class CounterFunction {
Counter,
Counters,
};
static ValueComparingNonnullRefPtr<CounterStyleValue const> create_counter(FlyString counter_name, ValueComparingNonnullRefPtr<StyleValue const> counter_style)
{
return adopt_ref(*new (nothrow) CounterStyleValue(CounterFunction::Counter, move(counter_name), move(counter_style), {}));
}
static ValueComparingNonnullRefPtr<CounterStyleValue const> create_counters(FlyString counter_name, FlyString join_string, ValueComparingNonnullRefPtr<StyleValue const> counter_style)
{
return adopt_ref(*new (nothrow) CounterStyleValue(CounterFunction::Counters, move(counter_name), move(counter_style), move(join_string)));
}
virtual ~CounterStyleValue() override;
CounterFunction function_type() const { return m_properties.function; }
auto counter_name() const { return m_properties.counter_name; }
auto counter_style() const { return m_properties.counter_style; }
auto join_string() const { return m_properties.join_string; }
String resolve(DOM::AbstractElement&) const;
virtual void serialize(StringBuilder&, SerializationMode) const override;
bool properties_equal(CounterStyleValue const& other) const;
virtual bool is_computationally_independent() const override { return m_properties.counter_style->is_computationally_independent(); }
private:
explicit CounterStyleValue(CounterFunction, FlyString counter_name, ValueComparingNonnullRefPtr<StyleValue const> counter_style, FlyString join_string);
struct Properties {
CounterFunction function;
FlyString counter_name;
ValueComparingNonnullRefPtr<StyleValue const> counter_style;
FlyString join_string;
bool operator==(Properties const&) const = default;
} m_properties;
};
}