/* * Copyright (C) Canon Inc. 2016 * * Redistribution and use in source and binary forms, with or without * modification, are permitted, provided that the following conditions * are required to be 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 Canon 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 CANON INC. AND ITS 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 CANON INC. AND ITS 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 AnimationTimeline_h #define AnimationTimeline_h #if ENABLE(WEB_ANIMATIONS) #include <wtf/PassRefPtr.h> #include <wtf/RefCounted.h> #include <wtf/TypeCasts.h> namespace WebCore { class AnimationTimeline : public RefCounted<AnimationTimeline> { public: // Override RefCounted's deref() to ensure operator delete is called on // the appropriate subclass type. void deref() { if (derefBase()) destroy(); } bool isDocumentTimeline() const { return m_classType == DocumentTimelineClass; } protected: enum ClassType { DocumentTimelineClass }; ClassType classType() const { return m_classType; } explicit AnimationTimeline(ClassType); // NOTE: Intentionally left non-virtual (using static polymorphism). ~AnimationTimeline(); private: ClassType m_classType; void destroy(); }; } // namespace WebCore #define SPECIALIZE_TYPE_TRAITS_ANIMATION_TIMELINE(ToValueTypeName, predicate) \ SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::ToValueTypeName) \ static bool isType(const WebCore::AnimationTimeline& value) { return value.predicate; } \ SPECIALIZE_TYPE_TRAITS_END() #endif // ENABLE(WEB_ANIMATIONS) #endif // AnimationTimeline_h