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LibWeb: Implement CSS cos()

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This commit is contained in:
stelar7 2023-05-27 23:57:01 +02:00 • committed by Sam Atkins
parent c73f476915
commit 46a5efe388
4 changed files with 100 additions and 0 deletions
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54
Userland/Libraries/LibWeb/CSS/StyleValues/CalculatedStyleValue.cpp
View file

@ -904,6 +904,60 @@ ErrorOr<void> SinCalculationNode::dump(StringBuilder& builder, int indent) const
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 {};
}
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

@ -414,4 +414,22 @@ private:
NonnullOwnPtr<CalculationNode> m_value;
};
class CosCalculationNode final : public CalculationNode {
public:
static ErrorOr<NonnullOwnPtr<CosCalculationNode>> create(NonnullOwnPtr<CalculationNode>);
~CosCalculationNode();
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:
CosCalculationNode(NonnullOwnPtr<CalculationNode>);
NonnullOwnPtr<CalculationNode> m_value;
};
}