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// Copyright 2022 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_COMPOSITOR_TEST_LAYER_ANIMATION_STOPPED_WAITER_H_
#define UI_COMPOSITOR_TEST_LAYER_ANIMATION_STOPPED_WAITER_H_
#include <memory>
#include "base/memory/raw_ptr.h"
#include "base/scoped_observation.h"
#include "ui/compositor/layer_animation_observer.h"
#include "ui/compositor/layer_animator.h"
namespace base {
class RunLoop;
}
namespace ui {
class Layer;
class LayerAnimator;
// A class capable of waiting until a layer has stopped animating. Supports
// animations that delete the layer on completion.
class LayerAnimationStoppedWaiter : public LayerAnimationObserver {
public:
LayerAnimationStoppedWaiter();
LayerAnimationStoppedWaiter(const LayerAnimationStoppedWaiter&) = delete;
LayerAnimationStoppedWaiter& operator=(const LayerAnimationStoppedWaiter&) =
delete;
~LayerAnimationStoppedWaiter() override;
// Waits until the specified `layer`'s animation is stopped.
void Wait(Layer* layer);
private:
// LayerAnimationObserver:
void OnLayerAnimationScheduled(LayerAnimationSequence* sequence) override {}
void OnLayerAnimationStarted(LayerAnimationSequence* sequence) override {}
void OnLayerAnimationAborted(LayerAnimationSequence* sequence) override;
void OnLayerAnimationEnded(LayerAnimationSequence* sequence) override;
raw_ptr<LayerAnimator, AcrossTasksDanglingUntriaged> layer_animator_ =
nullptr;
base::ScopedObservation<LayerAnimator, LayerAnimationObserver>
layer_animator_observer_{this};
std::unique_ptr<base::RunLoop> wait_loop_;
};
} // namespace ui
#endif // UI_COMPOSITOR_TEST_LAYER_ANIMATION_STOPPED_WAITER_H_
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