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LibWeb: Implement CSS tan()
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4 changed files with 100 additions and 0 deletions
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@ -958,6 +958,60 @@ ErrorOr<void> CosCalculationNode::dump(StringBuilder& builder, int indent) const
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return {};
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}
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ErrorOr<NonnullOwnPtr<TanCalculationNode>> TanCalculationNode::create(NonnullOwnPtr<CalculationNode> value)
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{
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return adopt_nonnull_own_or_enomem(new (nothrow) TanCalculationNode(move(value)));
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}
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TanCalculationNode::TanCalculationNode(NonnullOwnPtr<CalculationNode> value)
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: CalculationNode(Type::Tan)
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, m_value(move(value))
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{
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}
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TanCalculationNode::~TanCalculationNode() = default;
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ErrorOr<String> TanCalculationNode::to_string() const
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{
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StringBuilder builder;
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builder.append("tan("sv);
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builder.append(TRY(m_value->to_string()));
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builder.append(")"sv);
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return builder.to_string();
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}
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Optional<CalculatedStyleValue::ResolvedType> TanCalculationNode::resolved_type() const
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{
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return CalculatedStyleValue::ResolvedType::Number;
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}
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bool TanCalculationNode::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 TanCalculationNode::resolve(Optional<Length::ResolutionContext const&> context, CalculatedStyleValue::PercentageBasis const& percentage_basis) const
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{
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auto node_a = m_value->resolve(context, percentage_basis);
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auto node_a_value = resolve_value_radians(node_a.value());
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auto result = tan(node_a_value);
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return { Number(Number::Type::Number, result) };
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}
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ErrorOr<void> TanCalculationNode::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> TanCalculationNode::dump(StringBuilder& builder, int indent) const
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{
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TRY(builder.try_appendff("{: >{}}TAN: {}\n", "", indent, TRY(to_string())));
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return {};
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}
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void CalculatedStyleValue::CalculationResult::add(CalculationResult const& other, Optional<Length::ResolutionContext const&> context, PercentageBasis const& percentage_basis)
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{
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add_or_subtract_internal(SumOperation::Add, other, context, percentage_basis);
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@ -432,4 +432,22 @@ private:
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NonnullOwnPtr<CalculationNode> m_value;
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};
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class TanCalculationNode final : public CalculationNode {
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public:
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static ErrorOr<NonnullOwnPtr<TanCalculationNode>> create(NonnullOwnPtr<CalculationNode>);
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~TanCalculationNode();
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virtual ErrorOr<String> to_string() const override;
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virtual Optional<CalculatedStyleValue::ResolvedType> resolved_type() const override;
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virtual bool contains_percentage() const override;
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virtual CalculatedStyleValue::CalculationResult resolve(Optional<Length::ResolutionContext const&>, CalculatedStyleValue::PercentageBasis const&) const override;
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virtual ErrorOr<void> for_each_child_node(Function<ErrorOr<void>(NonnullOwnPtr<CalculationNode>&)> const&) override;
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virtual ErrorOr<void> dump(StringBuilder&, int indent) const override;
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private:
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TanCalculationNode(NonnullOwnPtr<CalculationNode>);
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NonnullOwnPtr<CalculationNode> m_value;
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};
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}
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