chromium/ui/gfx/animation/animation_delegate_notifier.h

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GFX_ANIMATION_ANIMATION_DELEGATE_NOTIFIER_H_
#define UI_GFX_ANIMATION_ANIMATION_DELEGATE_NOTIFIER_H_

#include "base/check.h"
#include "base/memory/raw_ptr.h"
#include "ui/gfx/animation/animation_delegate.h"

namespace gfx {

// AnimationDelegateNotifier adapts AnimationDelegate (which is used by
// inheritance) into an object that is used by composition. This can be useful
// to compose the functionality of an AnimationDelegate subclass into an object
// that inherits directly from AnimationDelegate.
template <class AnimationDelegateType = gfx::AnimationDelegate>
class AnimationDelegateNotifier : public AnimationDelegateType { … };

}  // namespace gfx

#endif  // UI_GFX_ANIMATION_ANIMATION_DELEGATE_NOTIFIER_H_