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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef StyleInterpolation_h
#define StyleInterpolation_h
#include "core/CSSPropertyNames.h"
#include "core/animation/Interpolation.h"
namespace blink {
class StyleResolverState;
class StyleInterpolation : public Interpolation {
public:
// 1) convert m_cachedValue into an X
// 2) shove X into StyleResolverState
// X can be:
// (1) a CSSValue (and applied via StyleBuilder::applyProperty)
// (2) an AnimatableValue (and applied via // AnimatedStyleBuilder::applyProperty)
// (3) a custom value that is inserted directly into the StyleResolverState.
virtual void apply(StyleResolverState&) const = 0;
virtual bool isStyleInterpolation() const override final { return true; }
CSSPropertyID id() const { return m_id; }
virtual void trace(Visitor* visitor) override
{
Interpolation::trace(visitor);
}
protected:
CSSPropertyID m_id;
StyleInterpolation(PassOwnPtrWillBeRawPtr<InterpolableValue> start, PassOwnPtrWillBeRawPtr<InterpolableValue> end, CSSPropertyID id)
: Interpolation(start, end)
, m_id(id)
{
}
};
DEFINE_TYPE_CASTS(StyleInterpolation, Interpolation, value, value->isStyleInterpolation(), value.isStyleInterpolation());
}
#endif
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