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1d71662f31
Initially I added this to the existing CalculationContext, but in reality, we have some data at parse-time and different data at resolve-time, so it made more sense to keep those separate. Instead of needing a variety of methods for resolving a Foo, depending on whether we have a Layout::Node available, or a percentage basis, or a length resolution context... put those in a CalculationResolutionContext, and just pass that one thing to these methods. This also removes the need for separate resolve_*_percentage() methods, because we can just pass the percentage basis in to the regular resolve_foo() method. This also corrects the issue that *any* calculation may need to resolve lengths, but we previously only passed a length resolution context to specific types in some situations. Now, they can all have one available, though it's up to the caller to provide it.
87 lines
1.8 KiB
C++
87 lines
1.8 KiB
C++
/*
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* Copyright (c) 2022-2023, Sam Atkins <atkinssj@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "Time.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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Time::Time(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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Time Time::make_seconds(double value)
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{
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return { value, Type::S };
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}
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Time Time::percentage_of(Percentage const& percentage) const
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{
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return Time { percentage.as_fraction() * m_value, m_type };
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}
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String Time::to_string() const
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{
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return MUST(String::formatted("{}s", to_seconds()));
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}
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double Time::to_seconds() const
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{
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switch (m_type) {
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case Type::S:
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return m_value;
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case Type::Ms:
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return m_value / 1000.0;
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}
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VERIFY_NOT_REACHED();
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}
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double Time::to_milliseconds() const
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{
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switch (m_type) {
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case Type::S:
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return m_value * 1000.0;
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case Type::Ms:
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return m_value;
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}
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VERIFY_NOT_REACHED();
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}
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StringView Time::unit_name() const
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{
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switch (m_type) {
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case Type::S:
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return "s"sv;
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case Type::Ms:
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return "ms"sv;
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}
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VERIFY_NOT_REACHED();
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}
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Optional<Time::Type> Time::unit_from_name(StringView name)
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{
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if (name.equals_ignoring_ascii_case("s"sv)) {
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return Type::S;
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} else if (name.equals_ignoring_ascii_case("ms"sv)) {
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return Type::Ms;
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}
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return {};
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}
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Time Time::resolve_calculated(NonnullRefPtr<CalculatedStyleValue> const& calculated, Layout::Node const& layout_node, Time const& reference_value)
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{
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return calculated->resolve_time(
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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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