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e7243f0090
Some at-rules (i.e. `@function`) require us to support custom descriptors (e.g. `--foo`). We do this by adding `DescriptorID::Custom` and using a new `DescriptorNameAndID` class in a bunch of places where we previously just used `DescriptorID`
72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
/*
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* Copyright (c) 2026, Callum Law <callumlaw1709@outlook.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibWeb/CSS/DescriptorID.h>
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#include <LibWeb/CSS/PropertyName.h>
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#include <LibWeb/CSS/Serialize.h>
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namespace Web::CSS {
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class DescriptorNameAndID {
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public:
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static Optional<DescriptorNameAndID> from_name(AtRuleID at_rule_id, FlyString name)
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{
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if (is_a_custom_property_name_string(name))
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return DescriptorNameAndID(move(name), DescriptorID::Custom);
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if (auto descriptor_id = descriptor_id_from_string(at_rule_id, name); descriptor_id.has_value()) {
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// NB: We use the serialized ID as the name here instead of the input name to ensure that legacy alias
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// mapping is reflected
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return DescriptorNameAndID(CSS::to_string(descriptor_id.value()), descriptor_id.value());
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}
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return {};
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}
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static DescriptorNameAndID from_id(DescriptorID descriptor_id)
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{
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VERIFY(descriptor_id != DescriptorID::Custom);
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return DescriptorNameAndID(CSS::to_string(descriptor_id), descriptor_id);
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}
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DescriptorID id() const { return m_id; }
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FlyString const& name() const
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{
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return m_name;
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}
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bool operator==(DescriptorNameAndID const& other) const
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{
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return m_id == other.m_id && m_name == other.m_name;
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}
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private:
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DescriptorNameAndID(FlyString name, DescriptorID id)
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: m_name(move(name))
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, m_id(id)
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{
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}
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FlyString m_name;
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DescriptorID m_id;
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};
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}
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namespace AK {
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template<>
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struct Traits<Web::CSS::DescriptorNameAndID> : public DefaultTraits<Web::CSS::DescriptorNameAndID> {
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static unsigned hash(Web::CSS::DescriptorNameAndID const& descriptor_name_and_id)
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{
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return pair_int_hash(to_underlying(descriptor_name_and_id.id()), descriptor_name_and_id.name().hash());
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}
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};
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}
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