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/*
* CSS Media Query
*
* Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>.
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
*
* 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 THE AUTHOR ``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 COMPUTER, 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
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef MediaQueryExp_h
#define MediaQueryExp_h
#include "CSSValue.h"
#include "MediaFeatureNames.h"
#include <wtf/PassOwnPtr.h>
#include <wtf/RefPtr.h>
#include <wtf/text/AtomicString.h>
namespace WebCore {
class CSSParserValueList;
class MediaQueryExp {
WTF_MAKE_FAST_ALLOCATED;
public:
static PassOwnPtr<MediaQueryExp> create(const AtomicString& mediaFeature, CSSParserValueList* values);
~MediaQueryExp();
AtomicString mediaFeature() const { return m_mediaFeature; }
CSSValue* value() const { return m_value.get(); }
bool operator==(const MediaQueryExp& other) const
{
return (other.m_mediaFeature == m_mediaFeature)
&& ((!other.m_value && !m_value)
|| (other.m_value && m_value && other.m_value->cssText() == m_value->cssText()));
}
bool isValid() const { return m_isValid; }
bool isViewportDependent() const { return m_mediaFeature == MediaFeatureNames::widthMediaFeature ||
m_mediaFeature == MediaFeatureNames::heightMediaFeature ||
m_mediaFeature == MediaFeatureNames::min_widthMediaFeature ||
m_mediaFeature == MediaFeatureNames::min_heightMediaFeature ||
m_mediaFeature == MediaFeatureNames::max_widthMediaFeature ||
m_mediaFeature == MediaFeatureNames::max_heightMediaFeature ||
m_mediaFeature == MediaFeatureNames::orientationMediaFeature ||
m_mediaFeature == MediaFeatureNames::aspect_ratioMediaFeature ||
m_mediaFeature == MediaFeatureNames::min_aspect_ratioMediaFeature ||
m_mediaFeature == MediaFeatureNames::max_aspect_ratioMediaFeature; }
String serialize() const;
private:
MediaQueryExp(const AtomicString& mediaFeature, CSSParserValueList* values);
AtomicString m_mediaFeature;
RefPtr<CSSValue> m_value;
bool m_isValid;
String m_serializationCache;
};
} // namespace
#endif