ladybird/Libraries/LibWeb/CSS/StyleValues/CSSLCHLike.h
Sam Atkins c57975c9fd LibWeb: Move and rename CSSStyleValue to StyleValues/StyleValue.{h,cpp}
This reverts 0e3487b9ab.

Back when I made that change, I thought we could make our StyleValue
classes match the typed-om definitions directly. However, they have
different requirements. Typed-om types need to be mutable and GCed,
whereas StyleValues are immutable and ideally wouldn't require a JS VM.

While I was already making such a cataclysmic change, I've moved it into
the StyleValues directory, because it *not* being there has bothered me
for a long time. 😅
2025-08-08 15:19:03 +01:00

78 lines
3.1 KiB
C++

/*
* Copyright (c) 2024, Sam Atkins <sam@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/CSS/StyleValues/CSSColorValue.h>
#include <LibWeb/CSS/StyleValues/NumberStyleValue.h>
namespace Web::CSS {
class CSSLCHLike : public CSSColorValue {
public:
template<DerivedFrom<CSSLCHLike> T>
static ValueComparingNonnullRefPtr<T const> create(ValueComparingNonnullRefPtr<StyleValue const> l, ValueComparingNonnullRefPtr<StyleValue const> c, ValueComparingNonnullRefPtr<StyleValue const> h, ValueComparingRefPtr<StyleValue const> alpha = {})
{
// alpha defaults to 1
if (!alpha)
alpha = NumberStyleValue::create(1);
return adopt_ref(*new (nothrow) T({}, move(l), move(c), move(h), alpha.release_nonnull()));
}
virtual ~CSSLCHLike() override = default;
StyleValue const& l() const { return *m_properties.l; }
StyleValue const& c() const { return *m_properties.c; }
StyleValue const& h() const { return *m_properties.h; }
StyleValue const& alpha() const { return *m_properties.alpha; }
virtual bool equals(StyleValue const& other) const override;
protected:
CSSLCHLike(ColorType color_type, ValueComparingNonnullRefPtr<StyleValue const> l, ValueComparingNonnullRefPtr<StyleValue const> c, ValueComparingNonnullRefPtr<StyleValue const> h, ValueComparingNonnullRefPtr<StyleValue const> alpha)
: CSSColorValue(color_type, ColorSyntax::Modern)
, m_properties { .l = move(l), .c = move(c), .h = move(h), .alpha = move(alpha) }
{
}
struct Properties {
ValueComparingNonnullRefPtr<StyleValue const> l;
ValueComparingNonnullRefPtr<StyleValue const> c;
ValueComparingNonnullRefPtr<StyleValue const> h;
ValueComparingNonnullRefPtr<StyleValue const> alpha;
bool operator==(Properties const&) const = default;
} m_properties;
};
// https://drafts.css-houdini.org/css-typed-om-1/#csslch
class CSSLCH final : public CSSLCHLike {
public:
CSSLCH(Badge<CSSLCHLike>, ValueComparingNonnullRefPtr<StyleValue const> l, ValueComparingNonnullRefPtr<StyleValue const> c, ValueComparingNonnullRefPtr<StyleValue const> h, ValueComparingNonnullRefPtr<StyleValue const> alpha)
: CSSLCHLike(ColorType::LCH, move(l), move(c), move(h), move(alpha))
{
}
virtual ~CSSLCH() override = default;
virtual Optional<Color> to_color(ColorResolutionContext) const override;
virtual String to_string(SerializationMode) const override;
};
// https://drafts.css-houdini.org/css-typed-om-1/#cssoklch
class CSSOKLCH final : public CSSLCHLike {
public:
CSSOKLCH(Badge<CSSLCHLike>, ValueComparingNonnullRefPtr<StyleValue const> l, ValueComparingNonnullRefPtr<StyleValue const> c, ValueComparingNonnullRefPtr<StyleValue const> h, ValueComparingNonnullRefPtr<StyleValue const> alpha)
: CSSLCHLike(ColorType::OKLCH, move(l), move(c), move(h), move(alpha))
{
}
virtual ~CSSOKLCH() override = default;
virtual Optional<Color> to_color(ColorResolutionContext) const override;
virtual String to_string(SerializationMode) const override;
};
}