layout/style/AnimationCollection.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/AnimationCollection.h"
   8 #include <type_traits>
   9
  10 #include "mozilla/ElementAnimationData.h"
  11 #include "mozilla/RestyleManager.h"
  12 #include "nsDOMMutationObserver.h"      // For nsAutoAnimationMutationBatch
  13 #include "mozilla/dom/CSSAnimation.h"   // For dom::CSSAnimation
  14 #include "mozilla/dom/CSSTransition.h"  // For dom::CSSTransition
  15
  16 namespace mozilla {
  17
  18 template <class AnimationType>
  19 AnimationCollection<AnimationType>::~AnimationCollection() {
  20   MOZ_COUNT_DTOR(AnimationCollection);
  21
  22   const PostRestyleMode postRestyle =
  23       mCalledDestroy ? PostRestyleMode::IfNeeded : PostRestyleMode::Never;
  24   {
  25     nsAutoAnimationMutationBatch mb(mElement.OwnerDoc());
  26
  27     for (size_t animIdx = mAnimations.Length(); animIdx-- != 0;) {
  28       mAnimations[animIdx]->CancelFromStyle(postRestyle);
  29     }
  30   }
  31   LinkedListElement<SelfType>::remove();
  32 }
  33
  34 template <class AnimationType>
  35 void AnimationCollection<AnimationType>::Destroy() {
  36   mCalledDestroy = true;
  37   auto* data = mElement.GetAnimationData();
  38   MOZ_ASSERT(data);
  39   if constexpr (std::is_same_v<AnimationType, dom::CSSAnimation>) {
  40     MOZ_ASSERT(data->GetAnimationCollection(mPseudo) == this);
  41     data->ClearAnimationCollectionFor(mPseudo);
  42   } else {
  43     MOZ_ASSERT(data->GetTransitionCollection(mPseudo) == this);
  44     data->ClearTransitionCollectionFor(mPseudo);
  45   }
  46 }
  47
  48 template <class AnimationType>
  49 AnimationCollection<AnimationType>* AnimationCollection<AnimationType>::Get(
  50     const dom::Element* aElement, const PseudoStyleType aType) {
  51   auto* data = aElement->GetAnimationData();
  52   if (!data) {
  53     return nullptr;
  54   }
  55   if constexpr (std::is_same_v<AnimationType, dom::CSSAnimation>) {
  56     return data->GetAnimationCollection(aType);
  57   } else {
  58     return data->GetTransitionCollection(aType);
  59   }
  60 }
  61
  62 template <class AnimationType>
  63 /* static */ AnimationCollection<AnimationType>*
  64 AnimationCollection<AnimationType>::Get(const nsIFrame* aFrame) {
  65   Maybe<NonOwningAnimationTarget> target =
  66       EffectCompositor::GetAnimationElementAndPseudoForFrame(aFrame);
  67   if (!target) {
  68     return nullptr;
  69   }
  70
  71   return Get(target->mElement, target->mPseudoType);
  72 }
  73
  74 // Explicit class instantiations
  75
  76 template class AnimationCollection<dom::CSSAnimation>;
  77 template class AnimationCollection<dom::CSSTransition>;
  78
  79 }  // namespace mozilla