ladybird/Libraries/LibWeb/CSS/StyleValues/LengthStyleValue.cpp
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

45 lines
1.5 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "LengthStyleValue.h"
namespace Web::CSS {
ValueComparingNonnullRefPtr<LengthStyleValue const> LengthStyleValue::create(Length const& length)
{
VERIFY(!length.is_auto());
if (length.is_px()) {
if (length.raw_value() == 0) {
static auto value = adopt_ref(*new (nothrow) LengthStyleValue(CSS::Length::make_px(0)));
return value;
}
if (length.raw_value() == 1) {
static auto value = adopt_ref(*new (nothrow) LengthStyleValue(CSS::Length::make_px(1)));
return value;
}
}
return adopt_ref(*new (nothrow) LengthStyleValue(length));
}
ValueComparingNonnullRefPtr<StyleValue const> LengthStyleValue::absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
{
if (auto length = m_length.absolutize(viewport_rect, font_metrics, root_font_metrics); length.has_value())
return LengthStyleValue::create(length.release_value());
return *this;
}
bool LengthStyleValue::equals(StyleValue const& other) const
{
if (type() != other.type())
return false;
auto const& other_length = other.as_length();
return m_length == other_length.m_length;
}
}