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// Copyright 2021 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_VIEWS_ANIMATION_ANIMATION_ABORT_HANDLE_H_
#define UI_VIEWS_ANIMATION_ANIMATION_ABORT_HANDLE_H_
#include <set>
#include "base/gtest_prod_util.h"
#include "base/memory/raw_ptr.h"
#include "ui/compositor/layer_observer.h"
#include "ui/views/animation/animation_builder.h"
#include "ui/views/views_export.h"
namespace ui {
class Layer;
} // namespace ui
namespace views {
// A handle that aborts associated animations on destruction.
// Caveat: ALL properties will be aborted on handle destruction,
// including those not initiated by the builder.
class VIEWS_EXPORT AnimationAbortHandle : public ui::LayerObserver {
public:
~AnimationAbortHandle() override;
void OnObserverDeleted();
private:
friend class AnimationBuilder;
FRIEND_TEST_ALL_PREFIXES(AnimationBuilderTest, AbortHandle);
enum class AnimationState { kNotStarted, kRunning, kEnded };
explicit AnimationAbortHandle(AnimationBuilder::Observer* observer);
// Called when an animation is created for `layer`.
void AddLayer(ui::Layer* layer);
void OnAnimationStarted();
void OnAnimationEnded();
// ui::LayerObserver:
void LayerDestroyed(ui::Layer* layer) override;
AnimationState animation_state() const { return animation_state_; }
raw_ptr<AnimationBuilder::Observer, DanglingUntriaged> observer_;
AnimationState animation_state_ = AnimationState::kNotStarted;
// Stores the layers tracked by the animation abort handle.
std::set<raw_ptr<ui::Layer, SetExperimental>> tracked_layers_;
// Stores the layers that are deleted during tracking.
std::set<raw_ptr<ui::Layer, SetExperimental>> deleted_layers_;
};
} // namespace views
#endif // UI_VIEWS_ANIMATION_ANIMATION_ABORT_HANDLE_H_
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