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 AnimatableVisibility_h 32 #define AnimatableVisibility_h 33 34 #include "core/animation/AnimatableValue.h" 35 #include "core/rendering/style/RenderStyleConstants.h" 36 37 namespace WebCore { 38 39 class AnimatableVisibility FINAL : public AnimatableValue { 40 public: 41 virtual ~AnimatableVisibility() { } 42 static PassRefPtrWillBeRawPtr<AnimatableVisibility> create(EVisibility visibility) 43 { 44 return adoptRefWillBeNoop(new AnimatableVisibility(visibility)); 45 } 46 47 EVisibility visibility() const { return m_visibility; } 48 49 virtual void trace(Visitor* visitor) OVERRIDE { AnimatableValue::trace(visitor); } 50 51 protected: 52 virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE; 53 virtual bool usesDefaultInterpolationWith(const AnimatableValue*) const OVERRIDE; 54 55 private: 56 explicit AnimatableVisibility(EVisibility visibility) 57 : m_visibility(visibility) 58 { 59 } 60 virtual AnimatableType type() const OVERRIDE { return TypeVisibility; } 61 virtual bool equalTo(const AnimatableValue*) const OVERRIDE; 62 const EVisibility m_visibility; 63 }; 64 65 DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableVisibility, isVisibility()); 66 67 } // namespace WebCore 68 69 #endif // AnimatableVisibility_h 70
