Source/WebCore/css/CSSCustomPropertyValue.cpp

/*
 * Copyright (C) 2016 Apple Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    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. ``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
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "CSSCustomPropertyValue.h"


namespace WebCore {

bool CSSCustomPropertyValue::checkVariablesForCycles(const AtomicString& name, CustomPropertyValueMap& customProperties, HashSet<AtomicString>& seenProperties, HashSet<AtomicString>& invalidProperties) const
{
    ASSERT(containsVariables());
    if (m_value)
        return m_value->checkVariablesForCycles(name, customProperties, seenProperties, invalidProperties);
    return true;
}

void CSSCustomPropertyValue::resolveVariableReferences(const CustomPropertyValueMap& customProperties, Vector<Ref<CSSCustomPropertyValue>>& resolvedValues) const
{
    ASSERT(containsVariables());
    if (!m_value)
        return;
    
    ASSERT(m_value->needsVariableResolution());
    RefPtr<CSSVariableData> resolvedData = m_value->resolveVariableReferences(customProperties);
    if (resolvedData)
        resolvedValues.append(CSSCustomPropertyValue::createWithVariableData(m_name, resolvedData.releaseNonNull()));
    else
        resolvedValues.append(CSSCustomPropertyValue::createWithID(m_name, CSSValueInvalid));
}

}