forked from mirrors/gecko-dev
		
	
		
			
				
	
	
		
			114 lines
		
	
	
	
		
			4.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			114 lines
		
	
	
	
		
			4.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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| /* vim: set ts=8 sts=2 et sw=2 tw=80: */
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| /* This Source Code Form is subject to the terms of the Mozilla Public
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|  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
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|  * You can obtain one at http://mozilla.org/MPL/2.0/. */
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| 
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| #include "AnimationTimeline.h"
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| #include "mozilla/dom/Animation.h"
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| 
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| namespace mozilla::dom {
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| 
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| NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(AnimationTimeline)
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| 
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| NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(AnimationTimeline)
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|   tmp->mAnimationOrder.clear();
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|   NS_IMPL_CYCLE_COLLECTION_UNLINK(mWindow, mAnimations)
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|   NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
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| NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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| 
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| NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(AnimationTimeline)
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|   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWindow, mAnimations)
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| NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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| 
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| NS_IMPL_CYCLE_COLLECTING_ADDREF(AnimationTimeline)
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| NS_IMPL_CYCLE_COLLECTING_RELEASE(AnimationTimeline)
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| 
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| NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AnimationTimeline)
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|   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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|   NS_INTERFACE_MAP_ENTRY(nsISupports)
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| NS_INTERFACE_MAP_END
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| 
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| AnimationTimeline::AnimationTimeline(nsIGlobalObject* aWindow,
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|                                      RTPCallerType aRTPCallerType)
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|     : mWindow(aWindow), mRTPCallerType(aRTPCallerType) {
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|   MOZ_ASSERT(mWindow);
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| }
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| 
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| AnimationTimeline::~AnimationTimeline() { mAnimationOrder.clear(); }
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| 
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| bool AnimationTimeline::Tick(TickState& aState) {
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|   bool needsTicks = false;
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| 
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|   AutoTArray<RefPtr<Animation>, 32> animationsToTick;
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|   for (Animation* animation : mAnimationOrder) {
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|     MOZ_ASSERT(mAnimations.Contains(animation),
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|                "The sampling order list should be a subset of the hashset");
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|     MOZ_ASSERT(!animation->IsHiddenByContentVisibility(),
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|                "The sampling order list should not contain any animations "
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|                "that are hidden by content-visibility");
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|     animationsToTick.AppendElement(animation);
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|   }
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| 
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|   for (Animation* animation : animationsToTick) {
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|     // Skip any animations that are longer need associated with this timeline.
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|     if (animation->GetTimeline() != this) {
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|       RemoveAnimation(animation);
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|       continue;
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|     }
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| 
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|     needsTicks |= animation->NeedsTicks();
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|     // Even if |animation| doesn't need future ticks, we should still Tick it
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|     // this time around since it might just need a one-off tick in order to
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|     // queue events.
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|     animation->Tick(aState);
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|     if (!animation->NeedsTicks()) {
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|       RemoveAnimation(animation);
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|     }
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|   }
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| 
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|   return needsTicks;
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| }
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| 
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| void AnimationTimeline::NotifyAnimationUpdated(Animation& aAnimation) {
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|   if (mAnimations.EnsureInserted(&aAnimation)) {
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|     if (aAnimation.GetTimeline() && aAnimation.GetTimeline() != this) {
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|       aAnimation.GetTimeline()->RemoveAnimation(&aAnimation);
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|     }
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|     if (!aAnimation.IsHiddenByContentVisibility()) {
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|       mAnimationOrder.insertBack(&aAnimation);
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|     }
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|   }
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| }
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| 
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| void AnimationTimeline::RemoveAnimation(Animation* aAnimation) {
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|   if (static_cast<LinkedListElement<Animation>*>(aAnimation)->isInList() &&
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|       MOZ_LIKELY(!aAnimation->GetTimeline() ||
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|                  aAnimation->GetTimeline() == this)) {
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|     static_cast<LinkedListElement<Animation>*>(aAnimation)->remove();
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|     MOZ_ASSERT(mAnimations.Contains(aAnimation),
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|                "The sampling order list should be a subset of the hashset");
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|   }
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|   mAnimations.Remove(aAnimation);
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| }
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| 
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| void AnimationTimeline::NotifyAnimationContentVisibilityChanged(
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|     Animation* aAnimation, bool aIsVisible) {
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|   bool inList =
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|       static_cast<LinkedListElement<Animation>*>(aAnimation)->isInList();
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|   MOZ_ASSERT(!inList || mAnimations.Contains(aAnimation),
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|              "The sampling order list should be a subset of the hashset");
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|   if (aIsVisible && !inList && mAnimations.Contains(aAnimation)) {
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|     mAnimationOrder.insertBack(aAnimation);
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|   } else if (!aIsVisible && inList) {
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|     static_cast<LinkedListElement<Animation>*>(aAnimation)->remove();
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|   }
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| }
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| 
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| void AnimationTimeline::UpdateHiddenByContentVisibility() {
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|   for (Animation* animation : mAnimations) {
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|     animation->UpdateHiddenByContentVisibility();
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|   }
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| }
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| 
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| }  // namespace mozilla::dom
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