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/AnimatableClipPathOperation.h" 33 34 namespace WebCore { 35 36 bool AnimatableClipPathOperation::usesDefaultInterpolationWith(const AnimatableValue* value) const 37 { 38 const AnimatableClipPathOperation* toOperation = toAnimatableClipPathOperation(value); 39 40 if (m_operation->type() != ClipPathOperation::SHAPE || toOperation->m_operation->type() != ClipPathOperation::SHAPE) 41 return true; 42 43 const BasicShape* fromShape = toShapeClipPathOperation(clipPathOperation())->basicShape(); 44 const BasicShape* toShape = toShapeClipPathOperation(toOperation->clipPathOperation())->basicShape(); 45 46 return !fromShape->canBlend(toShape); 47 } 48 49 PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableClipPathOperation::interpolateTo(const AnimatableValue* value, double fraction) const 50 { 51 if (usesDefaultInterpolationWith(value)) 52 return defaultInterpolateTo(this, value, fraction); 53 54 const AnimatableClipPathOperation* toOperation = toAnimatableClipPathOperation(value); 55 const BasicShape* fromShape = toShapeClipPathOperation(clipPathOperation())->basicShape(); 56 const BasicShape* toShape = toShapeClipPathOperation(toOperation->clipPathOperation())->basicShape(); 57 58 return AnimatableClipPathOperation::create(ShapeClipPathOperation::create(toShape->blend(fromShape, fraction)).get()); 59 } 60 61 bool AnimatableClipPathOperation::equalTo(const AnimatableValue* value) const 62 { 63 const ClipPathOperation* operation = toAnimatableClipPathOperation(value)->m_operation.get(); 64 return m_operation == operation || (m_operation && operation && *m_operation == *operation); 65 } 66 67 } 68
