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https://github.com/LadybirdBrowser/ladybird.git
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443f9e5afb
Some dimensions would always serialize in a canonical unit, others never did, and others we manually would do so in their StyleValue. This commit moves all of that into the dimension types, which means for example that Length can apply its special rounding. Our local serialization test now produces the same output as other browsers. :^)
78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
/*
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* Copyright (c) 2022-2025, Sam Atkins <sam@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/CSS/Frequency.h>
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#include <LibWeb/CSS/Percentage.h>
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#include <LibWeb/CSS/StyleValues/CalculatedStyleValue.h>
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namespace Web::CSS {
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Frequency::Frequency(double value, Type type)
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: m_type(type)
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, m_value(value)
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{
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}
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Frequency Frequency::make_hertz(double value)
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{
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return { value, Type::Hz };
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}
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Frequency Frequency::percentage_of(Percentage const& percentage) const
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{
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return Frequency { percentage.as_fraction() * m_value, m_type };
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}
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String Frequency::to_string(SerializationMode serialization_mode) const
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{
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if (serialization_mode == SerializationMode::ResolvedValue)
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return MUST(String::formatted("{}hz", to_hertz()));
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return MUST(String::formatted("{}{}", raw_value(), unit_name()));
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}
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double Frequency::to_hertz() const
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{
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switch (m_type) {
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case Type::Hz:
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return m_value;
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case Type::kHz:
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return m_value * 1000;
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}
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VERIFY_NOT_REACHED();
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}
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StringView Frequency::unit_name() const
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{
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switch (m_type) {
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case Type::Hz:
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return "hz"sv;
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case Type::kHz:
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return "khz"sv;
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}
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VERIFY_NOT_REACHED();
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}
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Optional<Frequency::Type> Frequency::unit_from_name(StringView name)
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{
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if (name.equals_ignoring_ascii_case("hz"sv)) {
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return Type::Hz;
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} else if (name.equals_ignoring_ascii_case("khz"sv)) {
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return Type::kHz;
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}
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return {};
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}
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Frequency Frequency::resolve_calculated(NonnullRefPtr<CalculatedStyleValue const> const& calculated, Layout::Node const& layout_node, Frequency const& reference_value)
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{
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return calculated->resolve_frequency(
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{
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.percentage_basis = reference_value,
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.length_resolution_context = Length::ResolutionContext::for_layout_node(layout_node),
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})
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.value();
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}
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}
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