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 #include "config.h" 32 #include "core/animation/AnimatableShapeValue.h" 33 34 namespace WebCore { 35 36 bool AnimatableShapeValue::usesDefaultInterpolationWith(const AnimatableValue* value) const 37 { 38 const AnimatableShapeValue* shapeValue = toAnimatableShapeValue(value); 39 40 if (m_shape->type() != ShapeValue::Shape 41 || shapeValue->m_shape->type() != ShapeValue::Shape 42 || m_shape->cssBox() != shapeValue->m_shape->cssBox()) 43 return true; 44 45 const BasicShape* fromShape = this->m_shape->shape(); 46 const BasicShape* toShape = shapeValue->m_shape->shape(); 47 48 return !fromShape->canBlend(toShape); 49 } 50 51 PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableShapeValue::interpolateTo(const AnimatableValue* value, double fraction) const 52 { 53 if (usesDefaultInterpolationWith(value)) 54 return defaultInterpolateTo(this, value, fraction); 55 56 const AnimatableShapeValue* shapeValue = toAnimatableShapeValue(value); 57 const BasicShape* fromShape = this->m_shape->shape(); 58 const BasicShape* toShape = shapeValue->m_shape->shape(); 59 return AnimatableShapeValue::create(ShapeValue::createShapeValue(toShape->blend(fromShape, fraction), shapeValue->m_shape->cssBox()).get()); 60 } 61 62 bool AnimatableShapeValue::equalTo(const AnimatableValue* value) const 63 { 64 const ShapeValue* shape = toAnimatableShapeValue(value)->m_shape.get(); 65 return m_shape == shape || (m_shape && shape && *m_shape == *shape); 66 } 67 68 } 69