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893eac18dd
Many CSS grammars call for us to parse `Foo || Bar` but we don't have a good way to represent this unless we have a custom style value. Usually we store the values in a `StyleValueList` but since that can only store non-null elements we have to manually recheck which elements we have at which index whenever we use it. This style value holds a Vector of `RefPtr<StyleValue const>` so that we can represent null values and know what values are at what index without manually rechecking.
51 lines
1.2 KiB
C++
51 lines
1.2 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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#include "TupleStyleValue.h"
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namespace Web::CSS {
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void TupleStyleValue::serialize(StringBuilder& builder, SerializationMode mode) const
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{
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auto first = true;
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for (auto const& value : m_tuple) {
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if (value) {
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if (!first)
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builder.append(' ');
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value->serialize(builder, mode);
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first = false;
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}
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}
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}
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ValueComparingNonnullRefPtr<StyleValue const> TupleStyleValue::absolutized(ComputationContext const& context) const
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{
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StyleValueTuple absolutized_tuple;
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absolutized_tuple.ensure_capacity(m_tuple.size());
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bool any_value_changed = false;
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for (auto const& value : m_tuple) {
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if (value) {
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auto absolutized_value = value->absolutized(context);
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if (absolutized_value != value)
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any_value_changed = true;
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absolutized_tuple.append(move(absolutized_value));
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} else {
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absolutized_tuple.append(nullptr);
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}
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}
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if (!any_value_changed)
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return *this;
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return TupleStyleValue::create(move(absolutized_tuple));
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}
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}
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