source: webkit/trunk/Source/WebCore/css/CSSContainerRule.cpp

/*
 * Copyright (C) 2022 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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#include "config.h"
#include "CSSContainerRule.h"

#include "CSSMarkup.h"
#include "CSSStyleSheet.h"
#include "StyleRule.h"
#include <wtf/text/StringBuilder.h>

namespace WebCore {

CSSContainerRule::CSSContainerRule(StyleRuleContainer& rule, CSSStyleSheet* parent)
    : CSSConditionRule(rule, parent)
{
}

Ref<CSSContainerRule> CSSContainerRule::create(StyleRuleContainer& rule, CSSStyleSheet* parent)
{
    return adoptRef(*new CSSContainerRule(rule, parent));
}

const StyleRuleContainer& CSSContainerRule::styleRuleContainer() const
{
    return downcast<StyleRuleContainer>(groupRule());
}

String CSSContainerRule::cssText() const
{
    StringBuilder builder;

    builder.append("@container ");

    auto name = styleRuleContainer().filteredQuery().nameFilter;
    if (!name.isEmpty()) {
        serializeIdentifier(name, builder);
        builder.append(' ');
    }

    serialize(builder, styleRuleContainer().filteredQuery().query);

    builder.append(" {\n");
    appendCSSTextForItems(builder);
    builder.append('}');

    return builder.toString();
}

String CSSContainerRule::conditionText() const
{
    StringBuilder builder;
    serialize(builder, styleRuleContainer().filteredQuery().query);
    return builder.toString();
}

String CSSContainerRule::nameFilterText() const
{
    StringBuilder builder;
    
    auto name = styleRuleContainer().filteredQuery().nameFilter;
    if (!name.isEmpty())
        serializeIdentifier(name, builder);

    return builder.toString();
}

} // namespace WebCore