ladybird/Libraries/LibWeb/CSS/StyleValues/LengthStyleValue.cpp
Callum Law 52192a308b LibWeb: Update absolutize to take a ComputationContext struct
This struct will in the future hold information other than a length
resolution context (e.g. context for tree counting functions) and a
single struct is easier to work with than multiple parameters.
2025-10-07 10:50:01 +01:00

44 lines
1.6 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)
{
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(ComputationContext const& computation_context) const
{
if (auto length = m_length.absolutize(computation_context.length_resolution_context.viewport_rect, computation_context.length_resolution_context.font_metrics, computation_context.length_resolution_context.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;
}
}