ladybird/Libraries/LibWeb/CSS/InvalidationSet.cpp

/*
 * Copyright (c) 2025, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <LibWeb/CSS/InvalidationSet.h>

namespace Web::CSS {

void InvalidationSet::include_all_from(InvalidationSet const& other)
{
    m_needs_invalidate_self |= other.m_needs_invalidate_self;
    m_needs_invalidate_whole_subtree |= other.m_needs_invalidate_whole_subtree;
    for (auto const& property : other.m_properties)
        m_properties.set(property);
}

bool InvalidationSet::is_empty() const
{
    return !m_needs_invalidate_self && !m_needs_invalidate_whole_subtree && m_properties.is_empty();
}

void InvalidationSet::for_each_property(Function<void(Property const&)> const& callback) const
{
    if (m_needs_invalidate_self)
        callback({ Property::Type::InvalidateSelf });
    if (m_needs_invalidate_whole_subtree)
        callback({ Property::Type::InvalidateWholeSubtree });
    for (auto const& property : m_properties)
        callback(property);
}

}

namespace AK {

unsigned Traits<Web::CSS::InvalidationSet::Property>::hash(Web::CSS::InvalidationSet::Property const& invalidation_set_property)
{
    return pair_int_hash(to_underlying(invalidation_set_property.type), invalidation_set_property.name.hash());
}

ErrorOr<void> Formatter<Web::CSS::InvalidationSet::Property>::format(FormatBuilder& builder, Web::CSS::InvalidationSet::Property const& invalidation_set_property)
{
    switch (invalidation_set_property.type) {
    case Web::CSS::InvalidationSet::Property::Type::InvalidateSelf: {
        TRY(builder.put_string("$"sv));
        return {};
    }
    case Web::CSS::InvalidationSet::Property::Type::Class: {
        TRY(builder.put_string("."sv));
        TRY(builder.put_string(invalidation_set_property.name));
        return {};
    }
    case Web::CSS::InvalidationSet::Property::Type::Id: {
        TRY(builder.put_string("#"sv));
        TRY(builder.put_string(invalidation_set_property.name));
        return {};
    }
    case Web::CSS::InvalidationSet::Property::Type::TagName: {
        TRY(builder.put_string(invalidation_set_property.name));
        return {};
    }
    case Web::CSS::InvalidationSet::Property::Type::Attribute: {
        TRY(builder.put_string("["sv));
        TRY(builder.put_string(invalidation_set_property.name));
        TRY(builder.put_string("]"sv));
        return {};
    }
    case Web::CSS::InvalidationSet::Property::Type::InvalidateWholeSubtree: {
        TRY(builder.put_string("*"sv));
        return {};
    }
    default:
        VERIFY_NOT_REACHED();
    }
}

ErrorOr<void> Formatter<Web::CSS::InvalidationSet>::format(FormatBuilder& builder, Web::CSS::InvalidationSet const& invalidation_set)
{
    bool first = true;
    invalidation_set.for_each_property([&](auto const& property) {
        if (!first)
            builder.builder().append(", "sv);
        builder.builder().appendff("{}", property);
    });
    return {};
}

}