| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_ELEMENT_ANIMATIONS_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_ELEMENT_ANIMATIONS_H_ |
| |
| #include "base/macros.h" |
| #include "base/memory/scoped_refptr.h" |
| #include "third_party/blink/renderer/core/animation/css/css_animations.h" |
| #include "third_party/blink/renderer/core/animation/effect_stack.h" |
| #include "third_party/blink/renderer/core/animation/worklet_animation_base.h" |
| #include "third_party/blink/renderer/platform/wtf/hash_counted_set.h" |
| #include "third_party/blink/renderer/platform/wtf/hash_map.h" |
| |
| namespace blink { |
| |
| class CSSAnimations; |
| |
| using AnimationCountedSet = HeapHashCountedSet<WeakMember<Animation>>; |
| using WorkletAnimationSet = HeapHashSet<WeakMember<WorkletAnimationBase>>; |
| |
| class CORE_EXPORT ElementAnimations |
| : public GarbageCollectedFinalized<ElementAnimations> { |
| public: |
| ElementAnimations(); |
| ~ElementAnimations(); |
| |
| // Animations that are currently active for this element, their effects will |
| // be applied during a style recalc. CSS Transitions are included in this |
| // stack. |
| EffectStack& GetEffectStack() { return effect_stack_; } |
| const EffectStack& GetEffectStack() const { return effect_stack_; } |
| // Tracks the state of active CSS Animations and Transitions. The individual |
| // animations will also be part of the animation stack, but the mapping |
| // between animation name and animation is kept here. |
| CSSAnimations& CssAnimations() { return css_animations_; } |
| const CSSAnimations& CssAnimations() const { return css_animations_; } |
| |
| // Animations which have effects targeting this element. |
| AnimationCountedSet& Animations() { return animations_; } |
| // Worklet Animations which have effects targeting this element. |
| WorkletAnimationSet& GetWorkletAnimations() { return worklet_animations_; } |
| |
| bool IsEmpty() const { |
| return effect_stack_.IsEmpty() && css_animations_.IsEmpty() && |
| animations_.IsEmpty(); |
| } |
| |
| void RestartAnimationOnCompositor(); |
| |
| void UpdateAnimationFlags(ComputedStyle&); |
| void SetAnimationStyleChange(bool animation_style_change) { |
| animation_style_change_ = animation_style_change; |
| } |
| |
| const ComputedStyle* BaseComputedStyle() const; |
| void UpdateBaseComputedStyle(const ComputedStyle*); |
| void ClearBaseComputedStyle(); |
| |
| void Trace(blink::Visitor*); |
| |
| private: |
| bool IsAnimationStyleChange() const { return animation_style_change_; } |
| |
| EffectStack effect_stack_; |
| CSSAnimations css_animations_; |
| AnimationCountedSet animations_; |
| WorkletAnimationSet worklet_animations_; |
| |
| // When an Element is being animated, its entire style will be dirtied every |
| // frame by the running animation - even if the animation is only changing a |
| // few properties. To avoid the expensive cost of recomputing the entire |
| // style, we store a cached value of the 'base' computed style (e.g. with no |
| // change from the running animations) and use that during style recalc, |
| // applying only the animation changes on top of it. |
| bool animation_style_change_; |
| scoped_refptr<ComputedStyle> base_computed_style_; |
| |
| // CSSAnimations checks if a style change is due to animation. |
| friend class CSSAnimations; |
| DISALLOW_COPY_AND_ASSIGN(ElementAnimations); |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_ELEMENT_ANIMATIONS_H_ |