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1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "config.h"
6 #include "core/animation/InterpolableValue.h"
7 
8 namespace blink {
9 
10 DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(InterpolableValue);
11 
interpolate(const InterpolableValue & to,const double progress) const12 PassOwnPtrWillBeRawPtr<InterpolableValue> InterpolableNumber::interpolate(const InterpolableValue &to, const double progress) const
13 {
14     const InterpolableNumber& toNumber = toInterpolableNumber(to);
15     if (!progress)
16         return create(m_value);
17     if (progress == 1)
18         return create(toNumber.m_value);
19     return create(m_value * (1 - progress) + toNumber.m_value * progress);
20 }
21 
interpolate(const InterpolableValue & to,const double progress) const22 PassOwnPtrWillBeRawPtr<InterpolableValue> InterpolableBool::interpolate(const InterpolableValue &to, const double progress) const
23 {
24     if (progress < 0.5) {
25         return clone();
26     }
27     return to.clone();
28 }
29 
interpolate(const InterpolableValue & to,const double progress) const30 PassOwnPtrWillBeRawPtr<InterpolableValue> InterpolableList::interpolate(const InterpolableValue &to, const double progress) const
31 {
32     const InterpolableList& toList = toInterpolableList(to);
33     ASSERT(toList.m_size == m_size);
34 
35     if (!progress) {
36         return create(*this);
37     }
38     if (progress == 1) {
39         return InterpolableList::create(toList);
40     }
41 
42     OwnPtrWillBeRawPtr<InterpolableList> result = create(m_size);
43     for (size_t i = 0; i < m_size; i++) {
44         ASSERT(m_values[i]);
45         ASSERT(toList.m_values[i]);
46         result->set(i, m_values[i]->interpolate(*(toList.m_values[i]), progress));
47     }
48     return result.release();
49 }
50 
trace(Visitor * visitor)51 void InterpolableList::trace(Visitor* visitor)
52 {
53 #if ENABLE_OILPAN
54     visitor->trace(m_values);
55 #endif
56     InterpolableValue::trace(visitor);
57 }
58 
interpolate(const InterpolableValue & other,const double percentage) const59 PassOwnPtrWillBeRawPtr<InterpolableValue> InterpolableAnimatableValue::interpolate(const InterpolableValue &other, const double percentage) const
60 {
61     const InterpolableAnimatableValue& otherValue = toInterpolableAnimatableValue(other);
62     if (!percentage)
63         return create(m_value);
64     if (percentage == 1)
65         return create(otherValue.m_value);
66     return create(AnimatableValue::interpolate(m_value.get(), otherValue.m_value.get(), percentage));
67 }
68 
trace(Visitor * visitor)69 void InterpolableAnimatableValue::trace(Visitor* visitor)
70 {
71     visitor->trace(m_value);
72     InterpolableValue::trace(visitor);
73 }
74 
75 }
76