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| 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(const Vector<SVGLen
gth>& lengths) |
| 40 { |
| 41 for (size_t i = 0; i < lengths.size(); ++i) |
| 42 m_values.append(AnimatableSVGLength::create(lengths[i])); |
| 43 } |
| 44 |
| 45 Vector<SVGLength> AnimatableStrokeDasharrayList::toSVGLengthVector() const |
| 46 { |
| 47 Vector<SVGLength> lengths(m_values.size()); |
| 48 for (size_t i = 0; i < m_values.size(); ++i) { |
| 49 lengths[i] = toAnimatableSVGLength(m_values[i].get())->toSVGLength(); |
| 50 if (lengths[i].valueInSpecifiedUnits() < 0) |
| 51 lengths[i].setValueInSpecifiedUnits(0); |
| 52 } |
| 53 return lengths; |
| 54 } |
| 55 |
| 56 PassRefPtr<AnimatableValue> AnimatableStrokeDasharrayList::interpolateTo(const A
nimatableValue* value, double fraction) const |
| 57 { |
| 58 Vector<RefPtr<AnimatableValue> > from = m_values; |
| 59 Vector<RefPtr<AnimatableValue> > to = toAnimatableStrokeDasharrayList(value)
->m_values; |
| 60 |
| 61 // The spec states that if the sum of all values is zero, this should be |
| 62 // treated like a value of 'none', which means that a solid line is drawn. |
| 63 // Since we animate to and from values of zero, treat a value of 'none' the |
| 64 // same. If both the two and from values are 'none', we return 'none' |
| 65 // rather than '0 0'. |
| 66 if (from.isEmpty() && to.isEmpty()) |
| 67 return takeConstRef(this); |
| 68 if (from.isEmpty() || to.isEmpty()) { |
| 69 DEFINE_STATIC_LOCAL(RefPtr<AnimatableSVGLength>, zeroPixels, ()); |
| 70 if (!zeroPixels) { |
| 71 SVGLength length; |
| 72 length.newValueSpecifiedUnits(LengthTypePX, 0, IGNORE_EXCEPTION); |
| 73 zeroPixels = AnimatableSVGLength::create(length); |
| 74 } |
| 75 if (from.isEmpty()) { |
| 76 from.append(zeroPixels); |
| 77 from.append(zeroPixels); |
| 78 } |
| 79 if (to.isEmpty()) { |
| 80 to.append(zeroPixels); |
| 81 to.append(zeroPixels); |
| 82 } |
| 83 } |
| 84 |
| 85 Vector<RefPtr<AnimatableValue> > interpolatedValues; |
| 86 bool success = interpolateLists(from, to, fraction, interpolatedValues); |
| 87 ASSERT(success); |
| 88 return adoptRef(new AnimatableStrokeDasharrayList(interpolatedValues)); |
| 89 } |
| 90 |
| 91 } // namespace WebCore |
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