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32 #include "core/animation/AnimatableRepeatable.h"
34 #include "wtf/MathExtras.h"
38 bool AnimatableRepeatable::usesDefaultInterpolationWith(const AnimatableValue* value) const
40 const WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> >& fromValues = m_values;
41 const WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> >& toValues = toAnimatableRepeatable(value)->m_values;
42 ASSERT(!fromValues.isEmpty() && !toValues.isEmpty());
43 size_t size = lowestCommonMultiple(fromValues.size(), toValues.size());
45 for (size_t i = 0; i < size; ++i) {
46 const AnimatableValue* from = fromValues[i % fromValues.size()].get();
47 const AnimatableValue* to = toValues[i % toValues.size()].get();
48 // Spec: If a pair of values cannot be interpolated, then the lists are not interpolable.
49 if (AnimatableValue::usesDefaultInterpolation(from, to))
55 bool AnimatableRepeatable::interpolateLists(const WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> >& fromValues, const WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> >& toValues, double fraction, WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> >& interpolatedValues)
57 // Interpolation behaviour spec: http://www.w3.org/TR/css3-transitions/#animtype-repeatable-list
58 ASSERT(interpolatedValues.isEmpty());
59 ASSERT(!fromValues.isEmpty() && !toValues.isEmpty());
60 size_t size = lowestCommonMultiple(fromValues.size(), toValues.size());
62 for (size_t i = 0; i < size; ++i) {
63 const AnimatableValue* from = fromValues[i % fromValues.size()].get();
64 const AnimatableValue* to = toValues[i % toValues.size()].get();
65 // Spec: If a pair of values cannot be interpolated, then the lists are not interpolable.
66 if (AnimatableValue::usesDefaultInterpolation(from, to))
68 interpolatedValues.append(interpolate(from, to, fraction));
73 PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableRepeatable::interpolateTo(const AnimatableValue* value, double fraction) const
75 WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> > interpolatedValues;
76 bool success = interpolateLists(m_values, toAnimatableRepeatable(value)->m_values, fraction, interpolatedValues);
78 return create(interpolatedValues);
79 return defaultInterpolateTo(this, value, fraction);
82 bool AnimatableRepeatable::equalTo(const AnimatableValue* value) const
84 const WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> >& otherValues = toAnimatableRepeatable(value)->m_values;
85 if (m_values.size() != otherValues.size())
87 for (size_t i = 0; i < m_values.size(); ++i) {
88 if (!m_values[i]->equals(otherValues[i].get()))
94 void AnimatableRepeatable::trace(Visitor* visitor)
96 visitor->trace(m_values);
97 AnimatableValue::trace(visitor);
100 } // namespace WebCore