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LibWeb: Implement CSS atan()

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This commit is contained in:
stelar7 2023-05-28 11:04:57 +02:00 • committed by Sam Atkins
parent 784e1cfb72
commit 1aa84dfddd
4 changed files with 100 additions and 0 deletions
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54
Userland/Libraries/LibWeb/CSS/StyleValues/CalculatedStyleValue.cpp
View file

@ -1120,6 +1120,60 @@ ErrorOr<void> AcosCalculationNode::dump(StringBuilder& builder, int indent) cons
return {};
}
ErrorOr<NonnullOwnPtr<AtanCalculationNode>> AtanCalculationNode::create(NonnullOwnPtr<CalculationNode> value)
{
return adopt_nonnull_own_or_enomem(new (nothrow) AtanCalculationNode(move(value)));
}
AtanCalculationNode::AtanCalculationNode(NonnullOwnPtr<CalculationNode> value)
: CalculationNode(Type::Atan)
, m_value(move(value))
{
}
AtanCalculationNode::~AtanCalculationNode() = default;
ErrorOr<String> AtanCalculationNode::to_string() const
{
StringBuilder builder;
builder.append("atan("sv);
builder.append(TRY(m_value->to_string()));
builder.append(")"sv);
return builder.to_string();
}
Optional<CalculatedStyleValue::ResolvedType> AtanCalculationNode::resolved_type() const
{
return CalculatedStyleValue::ResolvedType::Angle;
}
bool AtanCalculationNode::contains_percentage() const
{
return m_value->contains_percentage();
}
CalculatedStyleValue::CalculationResult AtanCalculationNode::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 = atan(node_a_value);
return { Angle(result, Angle::Type::Rad) };
}
ErrorOr<void> AtanCalculationNode::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> AtanCalculationNode::dump(StringBuilder& builder, int indent) const
{
TRY(builder.try_appendff("{: >{}}ATAN: {}\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);

18
Userland/Libraries/LibWeb/CSS/StyleValues/CalculatedStyleValue.h
View file

@ -486,4 +486,22 @@ private:
NonnullOwnPtr<CalculationNode> m_value;
};
class AtanCalculationNode final : public CalculationNode {
public:
static ErrorOr<NonnullOwnPtr<AtanCalculationNode>> create(NonnullOwnPtr<CalculationNode>);
~AtanCalculationNode();
virtual ErrorOr<String> to_string() const override;
virtual Optional<CalculatedStyleValue::ResolvedType> resolved_type() const override;
virtual bool contains_percentage() const override;
virtual CalculatedStyleValue::CalculationResult resolve(Optional<Length::ResolutionContext const&>, CalculatedStyleValue::PercentageBasis const&) const override;
virtual ErrorOr<void> for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const&) override;
virtual ErrorOr<void> dump(StringBuilder&, int indent) const override;
private:
AtanCalculationNode(NonnullOwnPtr<CalculationNode>);
NonnullOwnPtr<CalculationNode> m_value;
};
}