chromium/third_party/blink/renderer/core/animation/invalidatable_interpolation.h

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_INVALIDATABLE_INTERPOLATION_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_INVALIDATABLE_INTERPOLATION_H_

#include <memory>
#include "third_party/blink/renderer/core/animation/interpolation.h"
#include "third_party/blink/renderer/core/animation/interpolation_type.h"
#include "third_party/blink/renderer/core/animation/interpolation_types_map.h"
#include "third_party/blink/renderer/core/animation/primitive_interpolation.h"
#include "third_party/blink/renderer/core/animation/typed_interpolation_value.h"
#include "third_party/blink/renderer/core/core_export.h"

namespace blink {

// See the documentation of Interpolation for general information about this
// class hierarchy.
//
// The InvalidatableInterpolation subclass stores the start and end keyframes as
// PropertySpecificKeyframe objects.
//
// InvalidatableInterpolation uses conversion checkers and the interpolation
// environment to respond to changes to the underlying property value during
// interpolation.
//
// InvalidatableInterpolation is used to implement additive animations. During
// the effect application phase of animation computation, the current animated
// value of the property is applied to the element by calling the static
// ApplyStack function with an ordered list of InvalidatableInterpolation
// objects.
class CORE_EXPORT InvalidatableInterpolation : public Interpolation { … };

template <>
struct DowncastTraits<InvalidatableInterpolation> { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_INVALIDATABLE_INTERPOLATION_H_