1 /* 2 * CSS Media Query 3 * 4 * Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen (at) 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 MediaQuery_h 30 #define MediaQuery_h 31 32 #include "platform/heap/Handle.h" 33 #include "wtf/PassOwnPtr.h" 34 #include "wtf/Vector.h" 35 #include "wtf/text/StringHash.h" 36 #include "wtf/text/WTFString.h" 37 38 namespace WebCore { 39 class MediaQueryExp; 40 41 typedef WillBeHeapVector<OwnPtrWillBeMember<MediaQueryExp> > ExpressionHeapVector; 42 43 class MediaQuery : public NoBaseWillBeGarbageCollectedFinalized<MediaQuery> { 44 WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED; 45 public: 46 enum Restrictor { 47 Only, Not, None 48 }; 49 50 static PassOwnPtrWillBeRawPtr<MediaQuery> createNotAll(); 51 52 MediaQuery(Restrictor, const String& mediaType, PassOwnPtrWillBeRawPtr<ExpressionHeapVector> exprs); 53 ~MediaQuery(); 54 55 Restrictor restrictor() const { return m_restrictor; } 56 const ExpressionHeapVector& expressions() const { return *m_expressions; } 57 const String& mediaType() const { return m_mediaType; } 58 bool operator==(const MediaQuery& other) const; 59 String cssText() const; 60 61 PassOwnPtrWillBeRawPtr<MediaQuery> copy() const { return adoptPtrWillBeNoop(new MediaQuery(*this)); } 62 63 void trace(Visitor*); 64 65 private: 66 MediaQuery(const MediaQuery&); 67 68 Restrictor m_restrictor; 69 String m_mediaType; 70 OwnPtrWillBeMember<ExpressionHeapVector> m_expressions; 71 String m_serializationCache; 72 73 String serialize() const; 74 }; 75 76 } // namespace 77 78 #endif 79
