/*
 * Copyright (C) 2012 Motorola Mobility 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.
 * 3. Neither the name of Motorola Mobility Inc. nor the names of its
 *    contributors may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
 * OWNER 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
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "sky/engine/config.h"
#include "sky/engine/core/css/DOMWindowCSS.h"

#include "sky/engine/core/css/CSSPropertyMetadata.h"
#include "sky/engine/core/css/StylePropertySet.h"
#include "sky/engine/core/css/parser/BisonCSSParser.h"
#include "sky/engine/wtf/text/WTFString.h"

namespace blink {

PassRefPtr<DOMWindowCSS> DOMWindowCSS::create()
{
    return adoptRef(new DOMWindowCSS());
}

bool DOMWindowCSS::supports(const String& property, const String& value) const
{
    CSSPropertyID propertyID = cssPropertyID(property.stripWhiteSpace());
    if (propertyID == CSSPropertyInvalid)
        return false;
    ASSERT(CSSPropertyMetadata::isEnabledProperty(propertyID));

    String normalizedValue = value.stripWhiteSpace().simplifyWhiteSpace();

    if (normalizedValue.isEmpty())
        return false;

    RefPtr<MutableStylePropertySet> dummyStyle = MutableStylePropertySet::create();
    return BisonCSSParser::parseValue(dummyStyle.get(), propertyID, normalizedValue, HTMLStandardMode, 0);
}

bool DOMWindowCSS::supports(const String& conditionText) const
{
    CSSParserContext context;
    BisonCSSParser parser(context);
    return parser.parseSupportsCondition(conditionText);
}

}