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/AnimatableStrokeDasharrayList.h" 33 34 #include "bindings/v8/ExceptionStatePlaceholder.h" 35 #include "core/animation/AnimatableSVGLength.h" 36 37 namespace WebCore { 38 39 AnimatableStrokeDasharrayList::AnimatableStrokeDasharrayList(PassRefPtr<SVGLengthList> passLengths) 40 { 41 RefPtr<SVGLengthList> lengths = passLengths; 42 SVGLengthList::ConstIterator it = lengths->begin(); 43 SVGLengthList::ConstIterator itEnd = lengths->end(); 44 for (; it != itEnd; ++it) 45 m_values.append(AnimatableSVGLength::create(*it)); 46 } 47 48 PassRefPtr<SVGLengthList> AnimatableStrokeDasharrayList::toSVGLengthList() const 49 { 50 RefPtr<SVGLengthList> lengths = SVGLengthList::create(); 51 for (size_t i = 0; i < m_values.size(); ++i) { 52 RefPtr<SVGLength> length = toAnimatableSVGLength(m_values[i].get())->toSVGLength()->clone(); 53 if (length->valueInSpecifiedUnits() < 0) 54 length->setValueInSpecifiedUnits(0); 55 lengths->append(length); 56 } 57 return lengths.release(); 58 } 59 60 bool AnimatableStrokeDasharrayList::usesDefaultInterpolationWith(const AnimatableValue* value) const 61 { 62 return false; 63 } 64 65 PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableStrokeDasharrayList::interpolateTo(const AnimatableValue* value, double fraction) const 66 { 67 WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> > from = m_values; 68 WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> > to = toAnimatableStrokeDasharrayList(value)->m_values; 69 70 // The spec states that if the sum of all values is zero, this should be 71 // treated like a value of 'none', which means that a solid line is drawn. 72 // Since we animate to and from values of zero, treat a value of 'none' the 73 // same. If both the two and from values are 'none', we return 'none' 74 // rather than '0 0'. 75 if (from.isEmpty() && to.isEmpty()) 76 return takeConstRef(this); 77 if (from.isEmpty() || to.isEmpty()) { 78 DEFINE_STATIC_REF_WILL_BE_PERSISTENT(AnimatableSVGLength, zeroPixels, (AnimatableSVGLength::create(SVGLength::create()))); 79 if (from.isEmpty()) { 80 from.append(zeroPixels); 81 from.append(zeroPixels); 82 } 83 if (to.isEmpty()) { 84 to.append(zeroPixels); 85 to.append(zeroPixels); 86 } 87 } 88 89 WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> > interpolatedValues; 90 bool success = interpolateLists(from, to, fraction, interpolatedValues); 91 ASSERT_UNUSED(success, success); 92 return adoptRefWillBeNoop(new AnimatableStrokeDasharrayList(interpolatedValues)); 93 } 94 95 void AnimatableStrokeDasharrayList::trace(Visitor* visitor) 96 { 97 AnimatableRepeatable::trace(visitor); 98 } 99 100 } // namespace WebCore 101