1502 lines
51 KiB
C++
1502 lines
51 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "CalculatedStyleValue.h"
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#include <LibWeb/CSS/Percentage.h>
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namespace Web::CSS {
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static bool is_number(CalculatedStyleValue::ResolvedType type)
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{
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return type == CalculatedStyleValue::ResolvedType::Number || type == CalculatedStyleValue::ResolvedType::Integer;
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}
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static bool is_dimension(CalculatedStyleValue::ResolvedType type)
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{
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return type != CalculatedStyleValue::ResolvedType::Number
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&& type != CalculatedStyleValue::ResolvedType::Integer
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&& type != CalculatedStyleValue::ResolvedType::Percentage;
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}
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static double resolve_value_radians(CalculatedStyleValue::CalculationResult::Value value)
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{
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return value.visit(
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[](Number const& number) { return number.value(); },
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[](Angle const& angle) { return angle.to_radians(); },
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[](auto const&) { VERIFY_NOT_REACHED(); return 0.0; });
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};
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static double resolve_value(CalculatedStyleValue::CalculationResult::Value value, Optional<Length::ResolutionContext const&> context)
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{
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return value.visit(
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[](Number const& number) { return number.value(); },
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[](Angle const& angle) { return angle.to_degrees(); },
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[](Frequency const& frequency) { return frequency.to_hertz(); },
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[&context](Length const& length) { return length.to_px(*context).to_double(); },
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[](Percentage const& percentage) { return percentage.value(); },
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[](Time const& time) { return time.to_seconds(); });
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};
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static CalculatedStyleValue::CalculationResult to_resolved_type(CalculatedStyleValue::ResolvedType type, double value)
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{
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switch (type) {
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case CalculatedStyleValue::ResolvedType::Integer:
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return { Number(Number::Type::Integer, value) };
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case CalculatedStyleValue::ResolvedType::Number:
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return { Number(Number::Type::Number, value) };
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case CalculatedStyleValue::ResolvedType::Angle:
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return { Angle::make_degrees(value) };
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case CalculatedStyleValue::ResolvedType::Frequency:
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return { Frequency::make_hertz(value) };
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case CalculatedStyleValue::ResolvedType::Length:
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return { Length::make_px(value) };
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case CalculatedStyleValue::ResolvedType::Percentage:
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return { Percentage(value) };
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case CalculatedStyleValue::ResolvedType::Time:
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return { Time::make_seconds(value) };
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}
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VERIFY_NOT_REACHED();
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};
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CalculationNode::CalculationNode(Type type)
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: m_type(type)
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{
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}
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CalculationNode::~CalculationNode() = default;
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ErrorOr<NonnullOwnPtr<NumericCalculationNode>> NumericCalculationNode::create(NumericValue value)
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{
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return adopt_nonnull_own_or_enomem(new (nothrow) NumericCalculationNode(move(value)));
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}
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NumericCalculationNode::NumericCalculationNode(NumericValue value)
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: CalculationNode(Type::Numeric)
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, m_value(move(value))
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{
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}
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NumericCalculationNode::~NumericCalculationNode() = default;
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ErrorOr<String> NumericCalculationNode::to_string() const
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{
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return m_value.visit([](auto& value) { return value.to_string(); });
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}
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Optional<CalculatedStyleValue::ResolvedType> NumericCalculationNode::resolved_type() const
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{
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return m_value.visit(
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[](Number const&) { return CalculatedStyleValue::ResolvedType::Number; },
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[](Angle const&) { return CalculatedStyleValue::ResolvedType::Angle; },
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[](Frequency const&) { return CalculatedStyleValue::ResolvedType::Frequency; },
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[](Length const&) { return CalculatedStyleValue::ResolvedType::Length; },
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[](Percentage const&) { return CalculatedStyleValue::ResolvedType::Percentage; },
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[](Time const&) { return CalculatedStyleValue::ResolvedType::Time; });
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}
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bool NumericCalculationNode::contains_percentage() const
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{
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return m_value.has<Percentage>();
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}
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CalculatedStyleValue::CalculationResult NumericCalculationNode::resolve(Optional<Length::ResolutionContext const&>, CalculatedStyleValue::PercentageBasis const&) const
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{
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return m_value;
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}
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ErrorOr<void> NumericCalculationNode::dump(StringBuilder& builder, int indent) const
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{
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return builder.try_appendff("{: >{}}NUMERIC({})\n", "", indent, TRY(m_value.visit([](auto& it) { return it.to_string(); })));
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}
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ErrorOr<NonnullOwnPtr<SumCalculationNode>> SumCalculationNode::create(Vector<NonnullOwnPtr<CalculationNode>> values)
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{
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return adopt_nonnull_own_or_enomem(new (nothrow) SumCalculationNode(move(values)));
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}
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SumCalculationNode::SumCalculationNode(Vector<NonnullOwnPtr<CalculationNode>> values)
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: CalculationNode(Type::Sum)
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, m_values(move(values))
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{
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VERIFY(!m_values.is_empty());
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}
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SumCalculationNode::~SumCalculationNode() = default;
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ErrorOr<String> SumCalculationNode::to_string() const
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{
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bool first = true;
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StringBuilder builder;
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for (auto& value : m_values) {
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if (!first)
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TRY(builder.try_append(" + "sv));
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TRY(builder.try_append(TRY(value->to_string())));
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first = false;
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}
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return builder.to_string();
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}
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Optional<CalculatedStyleValue::ResolvedType> SumCalculationNode::resolved_type() const
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{
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// FIXME: Implement https://www.w3.org/TR/css-values-4/#determine-the-type-of-a-calculation
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// For now, this is just ad-hoc, based on the old implementation.
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Optional<CalculatedStyleValue::ResolvedType> type;
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for (auto const& value : m_values) {
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auto maybe_value_type = value->resolved_type();
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if (!maybe_value_type.has_value())
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return {};
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auto value_type = maybe_value_type.value();
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if (!type.has_value()) {
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type = value_type;
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continue;
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}
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// At + or -, check that both sides have the same type, or that one side is a <number> and the other is an <integer>.
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// If both sides are the same type, resolve to that type.
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if (value_type == type)
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continue;
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// If one side is a <number> and the other is an <integer>, resolve to <number>.
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if (is_number(*type) && is_number(value_type)) {
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type = CalculatedStyleValue::ResolvedType::Number;
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continue;
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}
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// FIXME: calc() handles <percentage> by allowing them to pretend to be whatever <dimension> type is allowed at this location.
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// Since we can't easily check what that type is, we just allow <percentage> to combine with any other <dimension> type.
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if (type == CalculatedStyleValue::ResolvedType::Percentage && is_dimension(value_type)) {
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type = value_type;
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continue;
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}
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if (is_dimension(*type) && value_type == CalculatedStyleValue::ResolvedType::Percentage)
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continue;
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return {};
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}
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return type;
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}
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bool SumCalculationNode::contains_percentage() const
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{
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for (auto const& value : m_values) {
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if (value->contains_percentage())
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return true;
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}
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return false;
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}
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CalculatedStyleValue::CalculationResult SumCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
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{
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Optional<CalculatedStyleValue::CalculationResult> total;
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for (auto& additional_product : m_values) {
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auto additional_value = additional_product->resolve(context, percentage_basis);
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if (!total.has_value()) {
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total = additional_value;
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continue;
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}
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total->add(additional_value, context, percentage_basis);
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}
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return total.value();
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}
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ErrorOr<void> SumCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
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{
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for (auto& item : m_values) {
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TRY(item->for_each_child_node(callback));
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TRY(callback(item));
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}
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return {};
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}
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ErrorOr<void> SumCalculationNode::dump(StringBuilder& builder, int indent) const
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{
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TRY(builder.try_appendff("{: >{}}SUM:\n", "", indent));
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for (auto const& item : m_values)
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TRY(item->dump(builder, indent + 2));
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return {};
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}
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ErrorOr<NonnullOwnPtr<ProductCalculationNode>> ProductCalculationNode::create(Vector<NonnullOwnPtr<CalculationNode>> values)
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{
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return adopt_nonnull_own_or_enomem(new (nothrow) ProductCalculationNode(move(values)));
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}
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ProductCalculationNode::ProductCalculationNode(Vector<NonnullOwnPtr<CalculationNode>> values)
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: CalculationNode(Type::Product)
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, m_values(move(values))
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{
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VERIFY(!m_values.is_empty());
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}
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ProductCalculationNode::~ProductCalculationNode() = default;
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ErrorOr<String> ProductCalculationNode::to_string() const
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{
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bool first = true;
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StringBuilder builder;
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for (auto& value : m_values) {
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if (!first)
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TRY(builder.try_append(" * "sv));
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TRY(builder.try_append(TRY(value->to_string())));
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first = false;
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}
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return builder.to_string();
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}
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Optional<CalculatedStyleValue::ResolvedType> ProductCalculationNode::resolved_type() const
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{
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// FIXME: Implement https://www.w3.org/TR/css-values-4/#determine-the-type-of-a-calculation
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// For now, this is just ad-hoc, based on the old implementation.
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Optional<CalculatedStyleValue::ResolvedType> type;
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for (auto const& value : m_values) {
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auto maybe_value_type = value->resolved_type();
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if (!maybe_value_type.has_value())
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return {};
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auto value_type = maybe_value_type.value();
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if (!type.has_value()) {
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type = value_type;
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continue;
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}
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// At *, check that at least one side is <number>.
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if (!(is_number(*type) || is_number(value_type)))
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return {};
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// If both sides are <integer>, resolve to <integer>.
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if (type == CalculatedStyleValue::ResolvedType::Integer && value_type == CalculatedStyleValue::ResolvedType::Integer) {
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type = CalculatedStyleValue::ResolvedType::Integer;
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} else {
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// Otherwise, resolve to the type of the other side.
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if (is_number(*type))
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type = value_type;
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}
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}
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return type;
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}
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bool ProductCalculationNode::contains_percentage() const
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{
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for (auto const& value : m_values) {
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if (value->contains_percentage())
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return true;
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}
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return false;
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}
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CalculatedStyleValue::CalculationResult ProductCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
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{
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Optional<CalculatedStyleValue::CalculationResult> total;
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for (auto& additional_product : m_values) {
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auto additional_value = additional_product->resolve(context, percentage_basis);
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if (!total.has_value()) {
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total = additional_value;
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continue;
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}
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total->multiply_by(additional_value, context);
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}
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return total.value();
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}
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ErrorOr<void> ProductCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
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{
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for (auto& item : m_values) {
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TRY(item->for_each_child_node(callback));
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TRY(callback(item));
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}
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return {};
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}
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ErrorOr<void> ProductCalculationNode::dump(StringBuilder& builder, int indent) const
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{
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TRY(builder.try_appendff("{: >{}}PRODUCT:\n", "", indent));
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for (auto const& item : m_values)
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TRY(item->dump(builder, indent + 2));
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return {};
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}
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ErrorOr<NonnullOwnPtr<NegateCalculationNode>> NegateCalculationNode::create(NonnullOwnPtr<Web::CSS::CalculationNode> value)
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{
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return adopt_nonnull_own_or_enomem(new (nothrow) NegateCalculationNode(move(value)));
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}
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NegateCalculationNode::NegateCalculationNode(NonnullOwnPtr<CalculationNode> value)
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: CalculationNode(Type::Negate)
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, m_value(move(value))
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{
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}
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NegateCalculationNode::~NegateCalculationNode() = default;
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ErrorOr<String> NegateCalculationNode::to_string() const
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{
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return String::formatted("(0 - {})", TRY(m_value->to_string()));
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}
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Optional<CalculatedStyleValue::ResolvedType> NegateCalculationNode::resolved_type() const
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{
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return m_value->resolved_type();
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}
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bool NegateCalculationNode::contains_percentage() const
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{
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return m_value->contains_percentage();
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}
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CalculatedStyleValue::CalculationResult NegateCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
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{
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auto child_value = m_value->resolve(context, percentage_basis);
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child_value.negate();
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return child_value;
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}
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ErrorOr<void> NegateCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
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{
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TRY(m_value->for_each_child_node(callback));
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TRY(callback(m_value));
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return {};
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}
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ErrorOr<void> NegateCalculationNode::dump(StringBuilder& builder, int indent) const
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{
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TRY(builder.try_appendff("{: >{}}NEGATE:\n", "", indent));
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TRY(m_value->dump(builder, indent + 2));
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return {};
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}
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ErrorOr<NonnullOwnPtr<InvertCalculationNode>> InvertCalculationNode::create(NonnullOwnPtr<Web::CSS::CalculationNode> value)
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{
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return adopt_nonnull_own_or_enomem(new (nothrow) InvertCalculationNode(move(value)));
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}
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InvertCalculationNode::InvertCalculationNode(NonnullOwnPtr<CalculationNode> value)
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: CalculationNode(Type::Invert)
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, m_value(move(value))
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{
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}
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InvertCalculationNode::~InvertCalculationNode() = default;
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ErrorOr<String> InvertCalculationNode::to_string() const
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{
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return String::formatted("(1 / {})", TRY(m_value->to_string()));
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}
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Optional<CalculatedStyleValue::ResolvedType> InvertCalculationNode::resolved_type() const
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{
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auto type = m_value->resolved_type();
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if (type == CalculatedStyleValue::ResolvedType::Integer)
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return CalculatedStyleValue::ResolvedType::Number;
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return type;
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}
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bool InvertCalculationNode::contains_percentage() const
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{
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return m_value->contains_percentage();
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}
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CalculatedStyleValue::CalculationResult InvertCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
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{
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auto child_value = m_value->resolve(context, percentage_basis);
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child_value.invert();
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return child_value;
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}
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ErrorOr<void> InvertCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
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{
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TRY(m_value->for_each_child_node(callback));
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TRY(callback(m_value));
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return {};
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}
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ErrorOr<void> InvertCalculationNode::dump(StringBuilder& builder, int indent) const
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{
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TRY(builder.try_appendff("{: >{}}INVERT:\n", "", indent));
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TRY(m_value->dump(builder, indent + 2));
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return {};
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}
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ErrorOr<NonnullOwnPtr<MinCalculationNode>> MinCalculationNode::create(Vector<NonnullOwnPtr<Web::CSS::CalculationNode>> values)
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{
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return adopt_nonnull_own_or_enomem(new (nothrow) MinCalculationNode(move(values)));
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}
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MinCalculationNode::MinCalculationNode(Vector<NonnullOwnPtr<CalculationNode>> values)
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: CalculationNode(Type::Min)
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, m_values(move(values))
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{
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}
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MinCalculationNode::~MinCalculationNode() = default;
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ErrorOr<String> MinCalculationNode::to_string() const
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{
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StringBuilder builder;
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TRY(builder.try_append("min("sv));
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for (size_t i = 0; i < m_values.size(); ++i) {
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if (i != 0)
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TRY(builder.try_append(", "sv));
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TRY(builder.try_append(TRY(m_values[i]->to_string())));
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}
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TRY(builder.try_append(")"sv));
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return builder.to_string();
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}
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Optional<CalculatedStyleValue::ResolvedType> MinCalculationNode::resolved_type() const
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{
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// NOTE: We check during parsing that all values have the same type.
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return m_values[0]->resolved_type();
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}
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bool MinCalculationNode::contains_percentage() const
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{
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for (auto const& value : m_values) {
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if (value->contains_percentage())
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return true;
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}
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return false;
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}
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CalculatedStyleValue::CalculationResult MinCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
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{
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CalculatedStyleValue::CalculationResult smallest_node = m_values.first()->resolve(context, percentage_basis);
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auto smallest_value = resolve_value(smallest_node.value(), context);
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for (size_t i = 1; i < m_values.size(); i++) {
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auto child_resolved = m_values[i]->resolve(context, percentage_basis);
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auto child_value = resolve_value(child_resolved.value(), context);
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if (child_value < smallest_value) {
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smallest_value = child_value;
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smallest_node = child_resolved;
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}
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}
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return smallest_node;
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}
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ErrorOr<void> MinCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
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{
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for (auto& value : m_values) {
|
|
TRY(value->for_each_child_node(callback));
|
|
TRY(callback(value));
|
|
}
|
|
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<void> MinCalculationNode::dump(StringBuilder& builder, int indent) const
|
|
{
|
|
TRY(builder.try_appendff("{: >{}}MIN:\n", "", indent));
|
|
for (auto const& value : m_values)
|
|
TRY(value->dump(builder, indent + 2));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<MaxCalculationNode>> MaxCalculationNode::create(Vector<NonnullOwnPtr<Web::CSS::CalculationNode>> values)
|
|
{
|
|
return adopt_nonnull_own_or_enomem(new (nothrow) MaxCalculationNode(move(values)));
|
|
}
|
|
|
|
MaxCalculationNode::MaxCalculationNode(Vector<NonnullOwnPtr<CalculationNode>> values)
|
|
: CalculationNode(Type::Max)
|
|
, m_values(move(values))
|
|
{
|
|
}
|
|
|
|
MaxCalculationNode::~MaxCalculationNode() = default;
|
|
|
|
ErrorOr<String> MaxCalculationNode::to_string() const
|
|
{
|
|
StringBuilder builder;
|
|
TRY(builder.try_append("max("sv));
|
|
for (size_t i = 0; i < m_values.size(); ++i) {
|
|
if (i != 0)
|
|
TRY(builder.try_append(", "sv));
|
|
TRY(builder.try_append(TRY(m_values[i]->to_string())));
|
|
}
|
|
TRY(builder.try_append(")"sv));
|
|
return builder.to_string();
|
|
}
|
|
|
|
Optional<CalculatedStyleValue::ResolvedType> MaxCalculationNode::resolved_type() const
|
|
{
|
|
// NOTE: We check during parsing that all values have the same type.
|
|
return m_values[0]->resolved_type();
|
|
}
|
|
|
|
bool MaxCalculationNode::contains_percentage() const
|
|
{
|
|
for (auto const& value : m_values) {
|
|
if (value->contains_percentage())
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
CalculatedStyleValue::CalculationResult MaxCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
|
|
{
|
|
CalculatedStyleValue::CalculationResult largest_node = m_values.first()->resolve(context, percentage_basis);
|
|
auto largest_value = resolve_value(largest_node.value(), context);
|
|
|
|
for (size_t i = 1; i < m_values.size(); i++) {
|
|
auto child_resolved = m_values[i]->resolve(context, percentage_basis);
|
|
auto child_value = resolve_value(child_resolved.value(), context);
|
|
|
|
if (child_value > largest_value) {
|
|
largest_value = child_value;
|
|
largest_node = child_resolved;
|
|
}
|
|
}
|
|
|
|
return largest_node;
|
|
}
|
|
|
|
ErrorOr<void> MaxCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
|
|
{
|
|
for (auto& value : m_values) {
|
|
TRY(value->for_each_child_node(callback));
|
|
TRY(callback(value));
|
|
}
|
|
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<void> MaxCalculationNode::dump(StringBuilder& builder, int indent) const
|
|
{
|
|
TRY(builder.try_appendff("{: >{}}MAX:\n", "", indent));
|
|
for (auto const& value : m_values)
|
|
TRY(value->dump(builder, indent + 2));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<ClampCalculationNode>> ClampCalculationNode::create(NonnullOwnPtr<CalculationNode> min, NonnullOwnPtr<CalculationNode> center, NonnullOwnPtr<CalculationNode> max)
|
|
{
|
|
return adopt_nonnull_own_or_enomem(new (nothrow) ClampCalculationNode(move(min), move(center), move(max)));
|
|
}
|
|
|
|
ClampCalculationNode::ClampCalculationNode(NonnullOwnPtr<CalculationNode> min, NonnullOwnPtr<CalculationNode> center, NonnullOwnPtr<CalculationNode> max)
|
|
: CalculationNode(Type::Clamp)
|
|
, m_min_value(move(min))
|
|
, m_center_value(move(center))
|
|
, m_max_value(move(max))
|
|
{
|
|
}
|
|
|
|
ClampCalculationNode::~ClampCalculationNode() = default;
|
|
|
|
ErrorOr<String> ClampCalculationNode::to_string() const
|
|
{
|
|
StringBuilder builder;
|
|
TRY(builder.try_append("clamp("sv));
|
|
TRY(builder.try_append(TRY(m_min_value->to_string())));
|
|
TRY(builder.try_append(", "sv));
|
|
TRY(builder.try_append(TRY(m_center_value->to_string())));
|
|
TRY(builder.try_append(", "sv));
|
|
TRY(builder.try_append(TRY(m_max_value->to_string())));
|
|
TRY(builder.try_append(")"sv));
|
|
return builder.to_string();
|
|
}
|
|
|
|
Optional<CalculatedStyleValue::ResolvedType> ClampCalculationNode::resolved_type() const
|
|
{
|
|
// NOTE: We check during parsing that all values have the same type.
|
|
return m_min_value->resolved_type();
|
|
}
|
|
|
|
bool ClampCalculationNode::contains_percentage() const
|
|
{
|
|
return m_min_value->contains_percentage() || m_center_value->contains_percentage() || m_max_value->contains_percentage();
|
|
}
|
|
|
|
CalculatedStyleValue::CalculationResult ClampCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
|
|
{
|
|
auto min_node = m_min_value->resolve(context, percentage_basis);
|
|
auto center_node = m_center_value->resolve(context, percentage_basis);
|
|
auto max_node = m_max_value->resolve(context, percentage_basis);
|
|
|
|
auto min_value = resolve_value(min_node.value(), context);
|
|
auto center_value = resolve_value(center_node.value(), context);
|
|
auto max_value = resolve_value(max_node.value(), context);
|
|
|
|
// NOTE: The value should be returned as "max(MIN, min(VAL, MAX))"
|
|
auto chosen_value = max(min_value, min(center_value, max_value));
|
|
if (chosen_value == min_value)
|
|
return min_node;
|
|
if (chosen_value == center_value)
|
|
return center_node;
|
|
if (chosen_value == max_value)
|
|
return max_node;
|
|
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
|
|
ErrorOr<void> ClampCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
|
|
{
|
|
TRY(m_min_value->for_each_child_node(callback));
|
|
TRY(m_center_value->for_each_child_node(callback));
|
|
TRY(m_max_value->for_each_child_node(callback));
|
|
TRY(callback(m_min_value));
|
|
TRY(callback(m_center_value));
|
|
TRY(callback(m_max_value));
|
|
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<void> ClampCalculationNode::dump(StringBuilder& builder, int indent) const
|
|
{
|
|
TRY(builder.try_appendff("{: >{}}CLAMP:\n", "", indent));
|
|
TRY(m_min_value->dump(builder, indent + 2));
|
|
TRY(m_center_value->dump(builder, indent + 2));
|
|
TRY(m_max_value->dump(builder, indent + 2));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<AbsCalculationNode>> AbsCalculationNode::create(NonnullOwnPtr<CalculationNode> value)
|
|
{
|
|
return adopt_nonnull_own_or_enomem(new (nothrow) AbsCalculationNode(move(value)));
|
|
}
|
|
|
|
AbsCalculationNode::AbsCalculationNode(NonnullOwnPtr<CalculationNode> value)
|
|
: CalculationNode(Type::Abs)
|
|
, m_value(move(value))
|
|
{
|
|
}
|
|
|
|
AbsCalculationNode::~AbsCalculationNode() = default;
|
|
|
|
ErrorOr<String> AbsCalculationNode::to_string() const
|
|
{
|
|
StringBuilder builder;
|
|
builder.append("abs("sv);
|
|
builder.append(TRY(m_value->to_string()));
|
|
builder.append(")"sv);
|
|
return builder.to_string();
|
|
}
|
|
|
|
Optional<CalculatedStyleValue::ResolvedType> AbsCalculationNode::resolved_type() const
|
|
{
|
|
return m_value->resolved_type();
|
|
}
|
|
|
|
bool AbsCalculationNode::contains_percentage() const
|
|
{
|
|
return m_value->contains_percentage();
|
|
}
|
|
|
|
CalculatedStyleValue::CalculationResult AbsCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
|
|
{
|
|
auto resolved_type = m_value->resolved_type().value();
|
|
auto node_a = m_value->resolve(context, percentage_basis);
|
|
auto node_a_value = resolve_value(node_a.value(), context);
|
|
|
|
if (node_a_value < 0)
|
|
return to_resolved_type(resolved_type, -node_a_value);
|
|
|
|
return node_a;
|
|
}
|
|
|
|
ErrorOr<void> AbsCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
|
|
{
|
|
TRY(m_value->for_each_child_node(callback));
|
|
TRY(callback(m_value));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<void> AbsCalculationNode::dump(StringBuilder& builder, int indent) const
|
|
{
|
|
TRY(builder.try_appendff("{: >{}}ABS: {}\n", "", indent, TRY(to_string())));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<SignCalculationNode>> SignCalculationNode::create(NonnullOwnPtr<CalculationNode> value)
|
|
{
|
|
return adopt_nonnull_own_or_enomem(new (nothrow) SignCalculationNode(move(value)));
|
|
}
|
|
|
|
SignCalculationNode::SignCalculationNode(NonnullOwnPtr<CalculationNode> value)
|
|
: CalculationNode(Type::Sign)
|
|
, m_value(move(value))
|
|
{
|
|
}
|
|
|
|
SignCalculationNode::~SignCalculationNode() = default;
|
|
|
|
ErrorOr<String> SignCalculationNode::to_string() const
|
|
{
|
|
StringBuilder builder;
|
|
builder.append("sign("sv);
|
|
builder.append(TRY(m_value->to_string()));
|
|
builder.append(")"sv);
|
|
return builder.to_string();
|
|
}
|
|
|
|
Optional<CalculatedStyleValue::ResolvedType> SignCalculationNode::resolved_type() const
|
|
{
|
|
return CalculatedStyleValue::ResolvedType::Integer;
|
|
}
|
|
|
|
bool SignCalculationNode::contains_percentage() const
|
|
{
|
|
return m_value->contains_percentage();
|
|
}
|
|
|
|
CalculatedStyleValue::CalculationResult SignCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
|
|
{
|
|
auto node_a = m_value->resolve(context, percentage_basis);
|
|
auto node_a_value = resolve_value(node_a.value(), context);
|
|
|
|
if (node_a_value < 0)
|
|
return { Number(Number::Type::Integer, -1) };
|
|
|
|
if (node_a_value > 0)
|
|
return { Number(Number::Type::Integer, 1) };
|
|
|
|
return { Number(Number::Type::Integer, 0) };
|
|
}
|
|
|
|
ErrorOr<void> SignCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
|
|
{
|
|
TRY(m_value->for_each_child_node(callback));
|
|
TRY(callback(m_value));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<void> SignCalculationNode::dump(StringBuilder& builder, int indent) const
|
|
{
|
|
TRY(builder.try_appendff("{: >{}}SIGN: {}\n", "", indent, TRY(to_string())));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<ConstantCalculationNode>> ConstantCalculationNode::create(ConstantType constant)
|
|
{
|
|
return adopt_nonnull_own_or_enomem(new (nothrow) ConstantCalculationNode(constant));
|
|
}
|
|
|
|
ConstantCalculationNode::ConstantCalculationNode(ConstantType constant)
|
|
: CalculationNode(Type::Constant)
|
|
, m_constant(constant)
|
|
{
|
|
}
|
|
|
|
ConstantCalculationNode::~ConstantCalculationNode() = default;
|
|
|
|
ErrorOr<String> ConstantCalculationNode::to_string() const
|
|
{
|
|
switch (m_constant) {
|
|
case CalculationNode::ConstantType::E:
|
|
return "e"_short_string;
|
|
case CalculationNode::ConstantType::PI:
|
|
return "pi"_short_string;
|
|
case CalculationNode::ConstantType::Infinity:
|
|
return "infinity"_string;
|
|
case CalculationNode::ConstantType::MinusInfinity:
|
|
return "-infinity"_string;
|
|
case CalculationNode::ConstantType::NaN:
|
|
return "NaN"_string;
|
|
}
|
|
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
Optional<CalculatedStyleValue::ResolvedType> ConstantCalculationNode::resolved_type() const
|
|
{
|
|
return CalculatedStyleValue::ResolvedType::Number;
|
|
}
|
|
|
|
CalculatedStyleValue::CalculationResult ConstantCalculationNode::resolve([[maybe_unused]] Optional<Length::ResolutionContext const&> context, [[maybe_unused]] CalculatedStyleValue::PercentageBasis const& percentage_basis) const
|
|
{
|
|
switch (m_constant) {
|
|
case CalculationNode::ConstantType::E:
|
|
return { Number(Number::Type::Number, M_E) };
|
|
case CalculationNode::ConstantType::PI:
|
|
return { Number(Number::Type::Number, M_PI) };
|
|
// FIXME: We need to keep track of Infinity and NaN across all nodes, since they require special handling.
|
|
case CalculationNode::ConstantType::Infinity:
|
|
return { Number(Number::Type::Number, NumericLimits<float>::max()) };
|
|
case CalculationNode::ConstantType::MinusInfinity:
|
|
return { Number(Number::Type::Number, NumericLimits<float>::lowest()) };
|
|
case CalculationNode::ConstantType::NaN:
|
|
return { Number(Number::Type::Number, NAN) };
|
|
}
|
|
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
|
|
ErrorOr<void> ConstantCalculationNode::for_each_child_node([[maybe_unused]] Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
|
|
{
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<void> ConstantCalculationNode::dump(StringBuilder& builder, int indent) const
|
|
{
|
|
TRY(builder.try_appendff("{: >{}}CONSTANT: {}\n", "", indent, TRY(to_string())));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<SinCalculationNode>> SinCalculationNode::create(NonnullOwnPtr<CalculationNode> value)
|
|
{
|
|
return adopt_nonnull_own_or_enomem(new (nothrow) SinCalculationNode(move(value)));
|
|
}
|
|
|
|
SinCalculationNode::SinCalculationNode(NonnullOwnPtr<CalculationNode> value)
|
|
: CalculationNode(Type::Sin)
|
|
, m_value(move(value))
|
|
{
|
|
}
|
|
|
|
SinCalculationNode::~SinCalculationNode() = default;
|
|
|
|
ErrorOr<String> SinCalculationNode::to_string() const
|
|
{
|
|
StringBuilder builder;
|
|
builder.append("sin("sv);
|
|
builder.append(TRY(m_value->to_string()));
|
|
builder.append(")"sv);
|
|
return builder.to_string();
|
|
}
|
|
|
|
Optional<CalculatedStyleValue::ResolvedType> SinCalculationNode::resolved_type() const
|
|
{
|
|
return CalculatedStyleValue::ResolvedType::Number;
|
|
}
|
|
|
|
bool SinCalculationNode::contains_percentage() const
|
|
{
|
|
return m_value->contains_percentage();
|
|
}
|
|
|
|
CalculatedStyleValue::CalculationResult SinCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
|
|
{
|
|
auto node_a = m_value->resolve(context, percentage_basis);
|
|
auto node_a_value = resolve_value_radians(node_a.value());
|
|
auto result = sin(node_a_value);
|
|
|
|
return { Number(Number::Type::Number, result) };
|
|
}
|
|
|
|
ErrorOr<void> SinCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
|
|
{
|
|
TRY(m_value->for_each_child_node(callback));
|
|
TRY(callback(m_value));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<void> SinCalculationNode::dump(StringBuilder& builder, int indent) const
|
|
{
|
|
TRY(builder.try_appendff("{: >{}}SIN: {}\n", "", indent, TRY(to_string())));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<CosCalculationNode>> CosCalculationNode::create(NonnullOwnPtr<CalculationNode> value)
|
|
{
|
|
return adopt_nonnull_own_or_enomem(new (nothrow) CosCalculationNode(move(value)));
|
|
}
|
|
|
|
CosCalculationNode::CosCalculationNode(NonnullOwnPtr<CalculationNode> value)
|
|
: CalculationNode(Type::Cos)
|
|
, m_value(move(value))
|
|
{
|
|
}
|
|
|
|
CosCalculationNode::~CosCalculationNode() = default;
|
|
|
|
ErrorOr<String> CosCalculationNode::to_string() const
|
|
{
|
|
StringBuilder builder;
|
|
builder.append("cos("sv);
|
|
builder.append(TRY(m_value->to_string()));
|
|
builder.append(")"sv);
|
|
return builder.to_string();
|
|
}
|
|
|
|
Optional<CalculatedStyleValue::ResolvedType> CosCalculationNode::resolved_type() const
|
|
{
|
|
return CalculatedStyleValue::ResolvedType::Number;
|
|
}
|
|
|
|
bool CosCalculationNode::contains_percentage() const
|
|
{
|
|
return m_value->contains_percentage();
|
|
}
|
|
|
|
CalculatedStyleValue::CalculationResult CosCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
|
|
{
|
|
auto node_a = m_value->resolve(context, percentage_basis);
|
|
auto node_a_value = resolve_value_radians(node_a.value());
|
|
auto result = cos(node_a_value);
|
|
|
|
return { Number(Number::Type::Number, result) };
|
|
}
|
|
|
|
ErrorOr<void> CosCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
|
|
{
|
|
TRY(m_value->for_each_child_node(callback));
|
|
TRY(callback(m_value));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<void> CosCalculationNode::dump(StringBuilder& builder, int indent) const
|
|
{
|
|
TRY(builder.try_appendff("{: >{}}COS: {}\n", "", indent, TRY(to_string())));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<TanCalculationNode>> TanCalculationNode::create(NonnullOwnPtr<CalculationNode> value)
|
|
{
|
|
return adopt_nonnull_own_or_enomem(new (nothrow) TanCalculationNode(move(value)));
|
|
}
|
|
|
|
TanCalculationNode::TanCalculationNode(NonnullOwnPtr<CalculationNode> value)
|
|
: CalculationNode(Type::Tan)
|
|
, m_value(move(value))
|
|
{
|
|
}
|
|
|
|
TanCalculationNode::~TanCalculationNode() = default;
|
|
|
|
ErrorOr<String> TanCalculationNode::to_string() const
|
|
{
|
|
StringBuilder builder;
|
|
builder.append("tan("sv);
|
|
builder.append(TRY(m_value->to_string()));
|
|
builder.append(")"sv);
|
|
return builder.to_string();
|
|
}
|
|
|
|
Optional<CalculatedStyleValue::ResolvedType> TanCalculationNode::resolved_type() const
|
|
{
|
|
return CalculatedStyleValue::ResolvedType::Number;
|
|
}
|
|
|
|
bool TanCalculationNode::contains_percentage() const
|
|
{
|
|
return m_value->contains_percentage();
|
|
}
|
|
|
|
CalculatedStyleValue::CalculationResult TanCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
|
|
{
|
|
auto node_a = m_value->resolve(context, percentage_basis);
|
|
auto node_a_value = resolve_value_radians(node_a.value());
|
|
auto result = tan(node_a_value);
|
|
|
|
return { Number(Number::Type::Number, result) };
|
|
}
|
|
|
|
ErrorOr<void> TanCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
|
|
{
|
|
TRY(m_value->for_each_child_node(callback));
|
|
TRY(callback(m_value));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<void> TanCalculationNode::dump(StringBuilder& builder, int indent) const
|
|
{
|
|
TRY(builder.try_appendff("{: >{}}TAN: {}\n", "", indent, TRY(to_string())));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<AsinCalculationNode>> AsinCalculationNode::create(NonnullOwnPtr<CalculationNode> value)
|
|
{
|
|
return adopt_nonnull_own_or_enomem(new (nothrow) AsinCalculationNode(move(value)));
|
|
}
|
|
|
|
AsinCalculationNode::AsinCalculationNode(NonnullOwnPtr<CalculationNode> value)
|
|
: CalculationNode(Type::Asin)
|
|
, m_value(move(value))
|
|
{
|
|
}
|
|
|
|
AsinCalculationNode::~AsinCalculationNode() = default;
|
|
|
|
ErrorOr<String> AsinCalculationNode::to_string() const
|
|
{
|
|
StringBuilder builder;
|
|
builder.append("asin("sv);
|
|
builder.append(TRY(m_value->to_string()));
|
|
builder.append(")"sv);
|
|
return builder.to_string();
|
|
}
|
|
|
|
Optional<CalculatedStyleValue::ResolvedType> AsinCalculationNode::resolved_type() const
|
|
{
|
|
return CalculatedStyleValue::ResolvedType::Angle;
|
|
}
|
|
|
|
bool AsinCalculationNode::contains_percentage() const
|
|
{
|
|
return m_value->contains_percentage();
|
|
}
|
|
|
|
CalculatedStyleValue::CalculationResult AsinCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
|
|
{
|
|
auto node_a = m_value->resolve(context, percentage_basis);
|
|
auto node_a_value = resolve_value(node_a.value(), context);
|
|
auto result = asin(node_a_value);
|
|
|
|
return { Angle(result, Angle::Type::Rad) };
|
|
}
|
|
|
|
ErrorOr<void> AsinCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
|
|
{
|
|
TRY(m_value->for_each_child_node(callback));
|
|
TRY(callback(m_value));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<void> AsinCalculationNode::dump(StringBuilder& builder, int indent) const
|
|
{
|
|
TRY(builder.try_appendff("{: >{}}ASIN: {}\n", "", indent, TRY(to_string())));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<NonnullOwnPtr<AcosCalculationNode>> AcosCalculationNode::create(NonnullOwnPtr<CalculationNode> value)
|
|
{
|
|
return adopt_nonnull_own_or_enomem(new (nothrow) AcosCalculationNode(move(value)));
|
|
}
|
|
|
|
AcosCalculationNode::AcosCalculationNode(NonnullOwnPtr<CalculationNode> value)
|
|
: CalculationNode(Type::Acos)
|
|
, m_value(move(value))
|
|
{
|
|
}
|
|
|
|
AcosCalculationNode::~AcosCalculationNode() = default;
|
|
|
|
ErrorOr<String> AcosCalculationNode::to_string() const
|
|
{
|
|
StringBuilder builder;
|
|
builder.append("acos("sv);
|
|
builder.append(TRY(m_value->to_string()));
|
|
builder.append(")"sv);
|
|
return builder.to_string();
|
|
}
|
|
|
|
Optional<CalculatedStyleValue::ResolvedType> AcosCalculationNode::resolved_type() const
|
|
{
|
|
return CalculatedStyleValue::ResolvedType::Angle;
|
|
}
|
|
|
|
bool AcosCalculationNode::contains_percentage() const
|
|
{
|
|
return m_value->contains_percentage();
|
|
}
|
|
|
|
CalculatedStyleValue::CalculationResult AcosCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
|
|
{
|
|
auto node_a = m_value->resolve(context, percentage_basis);
|
|
auto node_a_value = resolve_value(node_a.value(), context);
|
|
auto result = acos(node_a_value);
|
|
|
|
return { Angle(result, Angle::Type::Rad) };
|
|
}
|
|
|
|
ErrorOr<void> AcosCalculationNode::for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const& callback)
|
|
{
|
|
TRY(m_value->for_each_child_node(callback));
|
|
TRY(callback(m_value));
|
|
return {};
|
|
}
|
|
|
|
ErrorOr<void> AcosCalculationNode::dump(StringBuilder& builder, int indent) const
|
|
{
|
|
TRY(builder.try_appendff("{: >{}}ACOS: {}\n", "", indent, TRY(to_string())));
|
|
return {};
|
|
}
|
|
|
|
void CalculatedStyleValue::CalculationResult::add(CalculationResult const& other, Optional<Length::ResolutionContext const&> context, PercentageBasis const& percentage_basis)
|
|
{
|
|
add_or_subtract_internal(SumOperation::Add, other, context, percentage_basis);
|
|
}
|
|
|
|
void CalculatedStyleValue::CalculationResult::subtract(CalculationResult const& other, Optional<Length::ResolutionContext const&> context, PercentageBasis const& percentage_basis)
|
|
{
|
|
add_or_subtract_internal(SumOperation::Subtract, other, context, percentage_basis);
|
|
}
|
|
|
|
void CalculatedStyleValue::CalculationResult::add_or_subtract_internal(SumOperation op, CalculationResult const& other, Optional<Length::ResolutionContext const&> context, PercentageBasis const& percentage_basis)
|
|
{
|
|
// We know from validation when resolving the type, that "both sides have the same type, or that one side is a <number> and the other is an <integer>".
|
|
// Though, having the same type may mean that one side is a <dimension> and the other a <percentage>.
|
|
// Note: This is almost identical to ::add()
|
|
|
|
m_value.visit(
|
|
[&](Number const& number) {
|
|
auto other_number = other.m_value.get<Number>();
|
|
if (op == SumOperation::Add) {
|
|
m_value = number + other_number;
|
|
} else {
|
|
m_value = number - other_number;
|
|
}
|
|
},
|
|
[&](Angle const& angle) {
|
|
auto this_degrees = angle.to_degrees();
|
|
if (other.m_value.has<Angle>()) {
|
|
auto other_degrees = other.m_value.get<Angle>().to_degrees();
|
|
if (op == SumOperation::Add)
|
|
m_value = Angle::make_degrees(this_degrees + other_degrees);
|
|
else
|
|
m_value = Angle::make_degrees(this_degrees - other_degrees);
|
|
} else {
|
|
VERIFY(percentage_basis.has<Angle>());
|
|
|
|
auto other_degrees = percentage_basis.get<Angle>().percentage_of(other.m_value.get<Percentage>()).to_degrees();
|
|
if (op == SumOperation::Add)
|
|
m_value = Angle::make_degrees(this_degrees + other_degrees);
|
|
else
|
|
m_value = Angle::make_degrees(this_degrees - other_degrees);
|
|
}
|
|
},
|
|
[&](Frequency const& frequency) {
|
|
auto this_hertz = frequency.to_hertz();
|
|
if (other.m_value.has<Frequency>()) {
|
|
auto other_hertz = other.m_value.get<Frequency>().to_hertz();
|
|
if (op == SumOperation::Add)
|
|
m_value = Frequency::make_hertz(this_hertz + other_hertz);
|
|
else
|
|
m_value = Frequency::make_hertz(this_hertz - other_hertz);
|
|
} else {
|
|
VERIFY(percentage_basis.has<Frequency>());
|
|
|
|
auto other_hertz = percentage_basis.get<Frequency>().percentage_of(other.m_value.get<Percentage>()).to_hertz();
|
|
if (op == SumOperation::Add)
|
|
m_value = Frequency::make_hertz(this_hertz + other_hertz);
|
|
else
|
|
m_value = Frequency::make_hertz(this_hertz - other_hertz);
|
|
}
|
|
},
|
|
[&](Length const& length) {
|
|
auto this_px = length.to_px(*context);
|
|
if (other.m_value.has<Length>()) {
|
|
auto other_px = other.m_value.get<Length>().to_px(*context);
|
|
if (op == SumOperation::Add)
|
|
m_value = Length::make_px(this_px + other_px);
|
|
else
|
|
m_value = Length::make_px(this_px - other_px);
|
|
} else {
|
|
VERIFY(percentage_basis.has<Length>());
|
|
|
|
auto other_px = percentage_basis.get<Length>().percentage_of(other.m_value.get<Percentage>()).to_px(*context);
|
|
if (op == SumOperation::Add)
|
|
m_value = Length::make_px(this_px + other_px);
|
|
else
|
|
m_value = Length::make_px(this_px - other_px);
|
|
}
|
|
},
|
|
[&](Time const& time) {
|
|
auto this_seconds = time.to_seconds();
|
|
if (other.m_value.has<Time>()) {
|
|
auto other_seconds = other.m_value.get<Time>().to_seconds();
|
|
if (op == SumOperation::Add)
|
|
m_value = Time::make_seconds(this_seconds + other_seconds);
|
|
else
|
|
m_value = Time::make_seconds(this_seconds - other_seconds);
|
|
} else {
|
|
VERIFY(percentage_basis.has<Time>());
|
|
|
|
auto other_seconds = percentage_basis.get<Time>().percentage_of(other.m_value.get<Percentage>()).to_seconds();
|
|
if (op == SumOperation::Add)
|
|
m_value = Time::make_seconds(this_seconds + other_seconds);
|
|
else
|
|
m_value = Time::make_seconds(this_seconds - other_seconds);
|
|
}
|
|
},
|
|
[&](Percentage const& percentage) {
|
|
if (other.m_value.has<Percentage>()) {
|
|
if (op == SumOperation::Add)
|
|
m_value = Percentage { percentage.value() + other.m_value.get<Percentage>().value() };
|
|
else
|
|
m_value = Percentage { percentage.value() - other.m_value.get<Percentage>().value() };
|
|
return;
|
|
}
|
|
|
|
// Other side isn't a percentage, so the easiest way to handle it without duplicating all the logic, is just to swap `this` and `other`.
|
|
CalculationResult new_value = other;
|
|
if (op == SumOperation::Add) {
|
|
new_value.add(*this, context, percentage_basis);
|
|
} else {
|
|
// Turn 'this - other' into '-other + this', as 'A + B == B + A', but 'A - B != B - A'
|
|
new_value.multiply_by({ Number { Number::Type::Integer, -1.0f } }, context);
|
|
new_value.add(*this, context, percentage_basis);
|
|
}
|
|
|
|
*this = new_value;
|
|
});
|
|
}
|
|
|
|
void CalculatedStyleValue::CalculationResult::multiply_by(CalculationResult const& other, Optional<Length::ResolutionContext const&> context)
|
|
{
|
|
// We know from validation when resolving the type, that at least one side must be a <number> or <integer>.
|
|
// Both of these are represented as a double.
|
|
VERIFY(m_value.has<Number>() || other.m_value.has<Number>());
|
|
bool other_is_number = other.m_value.has<Number>();
|
|
|
|
m_value.visit(
|
|
[&](Number const& number) {
|
|
if (other_is_number) {
|
|
m_value = number * other.m_value.get<Number>();
|
|
} else {
|
|
// Avoid duplicating all the logic by swapping `this` and `other`.
|
|
CalculationResult new_value = other;
|
|
new_value.multiply_by(*this, context);
|
|
*this = new_value;
|
|
}
|
|
},
|
|
[&](Angle const& angle) {
|
|
m_value = Angle::make_degrees(angle.to_degrees() * other.m_value.get<Number>().value());
|
|
},
|
|
[&](Frequency const& frequency) {
|
|
m_value = Frequency::make_hertz(frequency.to_hertz() * other.m_value.get<Number>().value());
|
|
},
|
|
[&](Length const& length) {
|
|
m_value = Length::make_px(length.to_px(*context) * static_cast<double>(other.m_value.get<Number>().value()));
|
|
},
|
|
[&](Time const& time) {
|
|
m_value = Time::make_seconds(time.to_seconds() * other.m_value.get<Number>().value());
|
|
},
|
|
[&](Percentage const& percentage) {
|
|
m_value = Percentage { percentage.value() * other.m_value.get<Number>().value() };
|
|
});
|
|
}
|
|
|
|
void CalculatedStyleValue::CalculationResult::divide_by(CalculationResult const& other, Optional<Length::ResolutionContext const&> context)
|
|
{
|
|
// We know from validation when resolving the type, that `other` must be a <number> or <integer>.
|
|
// Both of these are represented as a Number.
|
|
auto denominator = other.m_value.get<Number>().value();
|
|
// FIXME: Dividing by 0 is invalid, and should be caught during parsing.
|
|
VERIFY(denominator != 0.0);
|
|
|
|
m_value.visit(
|
|
[&](Number const& number) {
|
|
m_value = Number {
|
|
Number::Type::Number,
|
|
number.value() / denominator
|
|
};
|
|
},
|
|
[&](Angle const& angle) {
|
|
m_value = Angle::make_degrees(angle.to_degrees() / denominator);
|
|
},
|
|
[&](Frequency const& frequency) {
|
|
m_value = Frequency::make_hertz(frequency.to_hertz() / denominator);
|
|
},
|
|
[&](Length const& length) {
|
|
m_value = Length::make_px(length.to_px(*context) / static_cast<double>(denominator));
|
|
},
|
|
[&](Time const& time) {
|
|
m_value = Time::make_seconds(time.to_seconds() / denominator);
|
|
},
|
|
[&](Percentage const& percentage) {
|
|
m_value = Percentage { percentage.value() / denominator };
|
|
});
|
|
}
|
|
|
|
void CalculatedStyleValue::CalculationResult::negate()
|
|
{
|
|
m_value.visit(
|
|
[&](Number const& number) {
|
|
m_value = Number { number.type(), 0 - number.value() };
|
|
},
|
|
[&](Angle const& angle) {
|
|
m_value = Angle { 0 - angle.raw_value(), angle.type() };
|
|
},
|
|
[&](Frequency const& frequency) {
|
|
m_value = Frequency { 0 - frequency.raw_value(), frequency.type() };
|
|
},
|
|
[&](Length const& length) {
|
|
m_value = Length { 0 - length.raw_value(), length.type() };
|
|
},
|
|
[&](Time const& time) {
|
|
m_value = Time { 0 - time.raw_value(), time.type() };
|
|
},
|
|
[&](Percentage const& percentage) {
|
|
m_value = Percentage { 0 - percentage.value() };
|
|
});
|
|
}
|
|
|
|
void CalculatedStyleValue::CalculationResult::invert()
|
|
{
|
|
// FIXME: Correctly handle division by zero.
|
|
m_value.visit(
|
|
[&](Number const& number) {
|
|
m_value = Number { Number::Type::Number, 1 / number.value() };
|
|
},
|
|
[&](Angle const& angle) {
|
|
m_value = Angle { 1 / angle.raw_value(), angle.type() };
|
|
},
|
|
[&](Frequency const& frequency) {
|
|
m_value = Frequency { 1 / frequency.raw_value(), frequency.type() };
|
|
},
|
|
[&](Length const& length) {
|
|
m_value = Length { 1 / length.raw_value(), length.type() };
|
|
},
|
|
[&](Time const& time) {
|
|
m_value = Time { 1 / time.raw_value(), time.type() };
|
|
},
|
|
[&](Percentage const& percentage) {
|
|
m_value = Percentage { 1 / percentage.value() };
|
|
});
|
|
}
|
|
|
|
ErrorOr<String> CalculatedStyleValue::to_string() const
|
|
{
|
|
// FIXME: Implement this according to https://www.w3.org/TR/css-values-4/#calc-serialize once that stabilizes.
|
|
return String::formatted("calc({})", TRY(m_calculation->to_string()));
|
|
}
|
|
|
|
bool CalculatedStyleValue::equals(StyleValue const& other) const
|
|
{
|
|
if (type() != other.type())
|
|
return false;
|
|
// This is a case where comparing the strings actually makes sense.
|
|
return to_string().release_value_but_fixme_should_propagate_errors() == other.to_string().release_value_but_fixme_should_propagate_errors();
|
|
}
|
|
|
|
Optional<Angle> CalculatedStyleValue::resolve_angle() const
|
|
{
|
|
auto result = m_calculation->resolve({}, {});
|
|
|
|
if (result.value().has<Angle>())
|
|
return result.value().get<Angle>();
|
|
return {};
|
|
}
|
|
|
|
Optional<Angle> CalculatedStyleValue::resolve_angle_percentage(Angle const& percentage_basis) const
|
|
{
|
|
auto result = m_calculation->resolve({}, percentage_basis);
|
|
|
|
return result.value().visit(
|
|
[&](Angle const& angle) -> Optional<Angle> {
|
|
return angle;
|
|
},
|
|
[&](Percentage const& percentage) -> Optional<Angle> {
|
|
return percentage_basis.percentage_of(percentage);
|
|
},
|
|
[&](auto const&) -> Optional<Angle> {
|
|
return {};
|
|
});
|
|
}
|
|
|
|
Optional<Frequency> CalculatedStyleValue::resolve_frequency() const
|
|
{
|
|
auto result = m_calculation->resolve({}, {});
|
|
|
|
if (result.value().has<Frequency>())
|
|
return result.value().get<Frequency>();
|
|
return {};
|
|
}
|
|
|
|
Optional<Frequency> CalculatedStyleValue::resolve_frequency_percentage(Frequency const& percentage_basis) const
|
|
{
|
|
auto result = m_calculation->resolve({}, percentage_basis);
|
|
|
|
return result.value().visit(
|
|
[&](Frequency const& frequency) -> Optional<Frequency> {
|
|
return frequency;
|
|
},
|
|
[&](Percentage const& percentage) -> Optional<Frequency> {
|
|
return percentage_basis.percentage_of(percentage);
|
|
},
|
|
[&](auto const&) -> Optional<Frequency> {
|
|
return {};
|
|
});
|
|
}
|
|
|
|
Optional<Length> CalculatedStyleValue::resolve_length(Length::ResolutionContext const& context) const
|
|
{
|
|
auto result = m_calculation->resolve(context, {});
|
|
|
|
if (result.value().has<Length>())
|
|
return result.value().get<Length>();
|
|
return {};
|
|
}
|
|
|
|
Optional<Length> CalculatedStyleValue::resolve_length(Layout::Node const& layout_node) const
|
|
{
|
|
return resolve_length(Length::ResolutionContext::for_layout_node(layout_node));
|
|
}
|
|
|
|
Optional<Length> CalculatedStyleValue::resolve_length_percentage(Layout::Node const& layout_node, Length const& percentage_basis) const
|
|
{
|
|
auto result = m_calculation->resolve(Length::ResolutionContext::for_layout_node(layout_node), percentage_basis);
|
|
|
|
return result.value().visit(
|
|
[&](Length const& length) -> Optional<Length> {
|
|
return length;
|
|
},
|
|
[&](Percentage const& percentage) -> Optional<Length> {
|
|
return percentage_basis.percentage_of(percentage);
|
|
},
|
|
[&](auto const&) -> Optional<Length> {
|
|
return {};
|
|
});
|
|
}
|
|
|
|
Optional<Percentage> CalculatedStyleValue::resolve_percentage() const
|
|
{
|
|
auto result = m_calculation->resolve({}, {});
|
|
if (result.value().has<Percentage>())
|
|
return result.value().get<Percentage>();
|
|
return {};
|
|
}
|
|
|
|
Optional<Time> CalculatedStyleValue::resolve_time() const
|
|
{
|
|
auto result = m_calculation->resolve({}, {});
|
|
|
|
if (result.value().has<Time>())
|
|
return result.value().get<Time>();
|
|
return {};
|
|
}
|
|
|
|
Optional<Time> CalculatedStyleValue::resolve_time_percentage(Time const& percentage_basis) const
|
|
{
|
|
auto result = m_calculation->resolve({}, percentage_basis);
|
|
|
|
return result.value().visit(
|
|
[&](Time const& time) -> Optional<Time> {
|
|
return time;
|
|
},
|
|
[&](auto const&) -> Optional<Time> {
|
|
return {};
|
|
});
|
|
}
|
|
|
|
Optional<double> CalculatedStyleValue::resolve_number() const
|
|
{
|
|
auto result = m_calculation->resolve({}, {});
|
|
if (result.value().has<Number>())
|
|
return result.value().get<Number>().value();
|
|
return {};
|
|
}
|
|
|
|
Optional<i64> CalculatedStyleValue::resolve_integer()
|
|
{
|
|
auto result = m_calculation->resolve({}, {});
|
|
if (result.value().has<Number>())
|
|
return result.value().get<Number>().integer_value();
|
|
return {};
|
|
}
|
|
|
|
bool CalculatedStyleValue::contains_percentage() const
|
|
{
|
|
return m_calculation->contains_percentage();
|
|
}
|
|
|
|
}
|