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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_SYSTEM_HOTSPOT_HOTSPOT_ICON_ANIMATION_H_
#define ASH_SYSTEM_HOTSPOT_HOTSPOT_ICON_ANIMATION_H_
#include "ash/ash_export.h"
#include "base/observer_list.h"
#include "ui/gfx/animation/animation_delegate.h"
#include "ui/gfx/animation/throb_animation.h"
namespace ash {
class HotspotIconAnimationObserver;
// Single instance class to handle icon animations and keep them in sync.
class ASH_EXPORT HotspotIconAnimation : public gfx::AnimationDelegate {
public:
HotspotIconAnimation();
~HotspotIconAnimation() override;
// Returns the current animation value, [0-1].
double GetAnimation();
// The animation stops when all observers have been removed.
// Be sure to remove observers when no associated icons are animating.
void AddObserver(HotspotIconAnimationObserver* observer);
void RemoveObserver(HotspotIconAnimationObserver* observer);
// gfx::AnimationDelegate:
void AnimationProgressed(const gfx::Animation* animation) override;
private:
gfx::ThrobAnimation animation_{this};
base::ObserverList<HotspotIconAnimationObserver> observers_;
};
} // namespace ash
#endif // ASH_SYSTEM_HOTSPOT_HOTSPOT_ICON_ANIMATION_H_
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