1/* 2 * CSS Media Query 3 * 4 * Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>. 5 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 24 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef MediaQueryExp_h 30#define MediaQueryExp_h 31 32#include "CSSValue.h" 33#include "MediaFeatureNames.h" 34#include <wtf/PassOwnPtr.h> 35#include <wtf/RefPtr.h> 36#include <wtf/text/AtomicString.h> 37 38namespace WebCore { 39class CSSParserValueList; 40 41class MediaQueryExp { 42 WTF_MAKE_FAST_ALLOCATED; 43public: 44 static PassOwnPtr<MediaQueryExp> create(const AtomicString& mediaFeature, CSSParserValueList* values); 45 ~MediaQueryExp(); 46 47 AtomicString mediaFeature() const { return m_mediaFeature; } 48 49 CSSValue* value() const { return m_value.get(); } 50 51 bool operator==(const MediaQueryExp& other) const 52 { 53 return (other.m_mediaFeature == m_mediaFeature) 54 && ((!other.m_value && !m_value) 55 || (other.m_value && m_value && other.m_value->equals(*m_value))); 56 } 57 58 bool isValid() const { return m_isValid; } 59 60 bool isViewportDependent() const { return m_mediaFeature == MediaFeatureNames::widthMediaFeature 61 || m_mediaFeature == MediaFeatureNames::heightMediaFeature 62 || m_mediaFeature == MediaFeatureNames::min_widthMediaFeature 63 || m_mediaFeature == MediaFeatureNames::min_heightMediaFeature 64 || m_mediaFeature == MediaFeatureNames::max_widthMediaFeature 65 || m_mediaFeature == MediaFeatureNames::max_heightMediaFeature 66 || m_mediaFeature == MediaFeatureNames::orientationMediaFeature 67 || m_mediaFeature == MediaFeatureNames::aspect_ratioMediaFeature 68 || m_mediaFeature == MediaFeatureNames::min_aspect_ratioMediaFeature 69 || m_mediaFeature == MediaFeatureNames::max_aspect_ratioMediaFeature; } 70 71 String serialize() const; 72 73 PassOwnPtr<MediaQueryExp> copy() const { return adoptPtr(new MediaQueryExp(*this)); } 74 75private: 76 MediaQueryExp(const AtomicString& mediaFeature, CSSParserValueList* values); 77 78 AtomicString m_mediaFeature; 79 RefPtr<CSSValue> m_value; 80 bool m_isValid; 81 String m_serializationCache; 82}; 83 84} // namespace 85 86#endif 87