1 /* 2 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef SVGProperty_h 32 #define SVGProperty_h 33 34 #include "core/svg/properties/SVGPropertyInfo.h" 35 #include "platform/heap/Handle.h" 36 #include "wtf/Noncopyable.h" 37 #include "wtf/PassRefPtr.h" 38 #include "wtf/RefCounted.h" 39 #include "wtf/text/WTFString.h" 40 41 namespace WebCore { 42 43 class ExceptionState; 44 class SVGElement; 45 class SVGAnimationElement; 46 47 class SVGPropertyBase : public RefCountedWillBeRefCountedGarbageCollected<SVGPropertyBase> { 48 WTF_MAKE_NONCOPYABLE(SVGPropertyBase); 49 50 public: 51 // Properties do not have a primitive type by default 52 typedef void PrimitiveType; 53 54 virtual ~SVGPropertyBase() 55 { 56 ASSERT(!m_ownerList); 57 } 58 59 // FIXME: remove this in WebAnimations transition. 60 // This is used from SVGAnimatedNewPropertyAnimator for its animate-by-string implementation. 61 virtual PassRefPtr<SVGPropertyBase> cloneForAnimation(const String&) const = 0; 62 63 virtual String valueAsString() const = 0; 64 65 // FIXME: remove below and just have this inherit AnimatableValue in WebAnimations transition. 66 virtual void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) = 0; 67 virtual void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtr<SVGPropertyBase> from, PassRefPtr<SVGPropertyBase> to, PassRefPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement*) = 0; 68 virtual float calculateDistance(PassRefPtr<SVGPropertyBase> to, SVGElement*) = 0; 69 70 AnimatedPropertyType type() 71 { 72 return m_type; 73 } 74 75 SVGPropertyBase* ownerList() const 76 { 77 return m_ownerList; 78 } 79 80 void setOwnerList(SVGPropertyBase* ownerList) 81 { 82 // Previous owner list must be cleared before setting new owner list. 83 ASSERT((!ownerList && m_ownerList) || (ownerList && !m_ownerList)); 84 85 m_ownerList = ownerList; 86 } 87 88 virtual void trace(Visitor* visitor) 89 { 90 visitor->trace(m_ownerList); 91 } 92 93 protected: 94 explicit SVGPropertyBase(AnimatedPropertyType type) 95 : m_type(type) 96 , m_ownerList(nullptr) 97 { 98 } 99 100 private: 101 const AnimatedPropertyType m_type; 102 103 RawPtrWillBeMember<SVGPropertyBase> m_ownerList; 104 }; 105 106 } 107 108 #endif // SVGProperty_h 109