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#ifndef LegacyStyleInterpolation_h
6#define LegacyStyleInterpolation_h
7
8#include "core/animation/StyleInterpolation.h"
9#include "core/css/resolver/AnimatedStyleBuilder.h"
10
11namespace blink {
12
13class LegacyStyleInterpolation : public StyleInterpolation {
14public:
15    static PassRefPtrWillBeRawPtr<LegacyStyleInterpolation> create(PassRefPtrWillBeRawPtr<AnimatableValue> start, PassRefPtrWillBeRawPtr<AnimatableValue> end, CSSPropertyID id)
16    {
17        return adoptRefWillBeNoop(new LegacyStyleInterpolation(InterpolableAnimatableValue::create(start), InterpolableAnimatableValue::create(end), id));
18    }
19
20    virtual void apply(StyleResolverState& state) const OVERRIDE
21    {
22        AnimatedStyleBuilder::applyProperty(m_id, state, currentValue().get());
23    }
24
25    virtual bool isLegacyStyleInterpolation() const OVERRIDE FINAL { return true; }
26    PassRefPtrWillBeRawPtr<AnimatableValue> currentValue() const
27    {
28        return toInterpolableAnimatableValue(m_cachedValue.get())->value();
29    }
30
31    virtual void trace(Visitor* visitor) OVERRIDE
32    {
33        StyleInterpolation::trace(visitor);
34    }
35
36private:
37    LegacyStyleInterpolation(PassOwnPtrWillBeRawPtr<InterpolableValue> start, PassOwnPtrWillBeRawPtr<InterpolableValue> end, CSSPropertyID id)
38        : StyleInterpolation(start, end, id)
39    {
40    }
41};
42
43DEFINE_TYPE_CASTS(LegacyStyleInterpolation, Interpolation, value, value->isLegacyStyleInterpolation(), value.isLegacyStyleInterpolation());
44
45}
46
47#endif
48