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- // Copyright (c) 2012 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef UI_COMPOSITOR_SCOPED_LAYER_ANIMATION_SETTINGS_H_
- #define UI_COMPOSITOR_SCOPED_LAYER_ANIMATION_SETTINGS_H_
- #include <set>
- #include "base/time/time.h"
- #include "ui/compositor/compositor_export.h"
- #include "ui/compositor/layer_animation_element.h"
- #include "ui/compositor/layer_animator.h"
- #include "ui/gfx/animation/tween.h"
- namespace ui {
- class ImplicitAnimationObserver;
- // Scoped settings allow you to temporarily change the animator's settings and
- // these changes are reverted when the object is destroyed. NOTE: when the
- // settings object is created, it applies the default transition duration
- // (200ms).
- class COMPOSITOR_EXPORT ScopedLayerAnimationSettings {
- public:
- explicit ScopedLayerAnimationSettings(scoped_refptr<LayerAnimator> animator);
- ScopedLayerAnimationSettings(const ScopedLayerAnimationSettings&) = delete;
- ScopedLayerAnimationSettings& operator=(const ScopedLayerAnimationSettings&) =
- delete;
- virtual ~ScopedLayerAnimationSettings();
- void AddObserver(ImplicitAnimationObserver* observer);
- void SetTransitionDuration(base::TimeDelta duration);
- base::TimeDelta GetTransitionDuration() const;
- // Locks transition duration in |animator_|. When transition duration
- // is locked any subsequent changes to it are ignored until the
- // ScopedLayerAnimationSettings object that has locked the duration goes out
- // of scope.
- void LockTransitionDuration();
- void SetTweenType(gfx::Tween::Type tween_type);
- gfx::Tween::Type GetTweenType() const;
- void SetPreemptionStrategy(LayerAnimator::PreemptionStrategy strategy);
- LayerAnimator::PreemptionStrategy GetPreemptionStrategy() const;
- // This will request render surface caching on the animating layer. The cache
- // request will be removed at the end of the animation.
- void CacheRenderSurface();
- // This will defer painting on the animating layer. The deferred paint
- // request will be removed at the end of the animation.
- void DeferPaint();
- // This will request trilinear filtering on the animating layer. The filtering
- // request will be removed at the end of the animation.
- void TrilinearFiltering();
- LayerAnimator* GetAnimator() { return animator_.get(); }
- private:
- scoped_refptr<LayerAnimator> animator_;
- bool old_is_transition_duration_locked_;
- base::TimeDelta old_transition_duration_;
- gfx::Tween::Type old_tween_type_;
- LayerAnimator::PreemptionStrategy old_preemption_strategy_;
- std::set<ImplicitAnimationObserver*> observers_;
- };
- } // namespace ui
- #endif // UI_COMPOSITOR_SCOPED_LAYER_ANIMATION_SETTINGS_H_
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