chromium/ui/gfx/animation/animation.h

// Copyright 2011 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_H_
#define UI_GFX_ANIMATION_ANIMATION_H_

#include <optional>

#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/time/time.h"
#include "ui/gfx/animation/animation_container_element.h"
#include "ui/gfx/animation/animation_export.h"

namespace gfx {
class Rect;
}

namespace gfx {

class AnimationContainer;
class AnimationDelegate;
class AnimationTestApi;

// Base class used in implementing animations. You only need use this class if
// you're implementing a new animation type, otherwise you'll likely want one of
// LinearAnimation, SlideAnimation, ThrobAnimation or MultiAnimation.
//
// To subclass override Step, which is invoked as the animation progresses and
// GetCurrentValue() to return the value appropriate to the animation.
class ANIMATION_EXPORT Animation : public AnimationContainerElement { … };

}  // namespace gfx

#endif  // UI_GFX_ANIMATION_ANIMATION_H_