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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at */
#ifndef mozilla_AnimationCollection_h
#define mozilla_AnimationCollection_h
#include "mozilla/Assertions.h"
#include "mozilla/LinkedList.h"
#include "mozilla/RefPtr.h"
#include "nsCSSPseudoElements.h"
#include "nsTArrayForwardDeclare.h"
class nsAtom;
class nsIFrame;
class nsPresContext;
namespace mozilla {
namespace dom {
class Element;
enum class PseudoStyleType : uint8_t;
template <class AnimationType>
class AnimationCollection
: public LinkedListElement<AnimationCollection<AnimationType>> {
typedef AnimationCollection<AnimationType> SelfType;
AnimationCollection(dom::Element& aOwner, PseudoStyleType aPseudoType)
: mElement(aOwner), mPseudo(aPseudoType) {
void Destroy();
// Given the frame |aFrame| with possibly animated content, finds its
// associated collection of animations. If |aFrame| is a generated content
// frame, this function may examine the parent frame to search for such
// animations.
static AnimationCollection* Get(const nsIFrame* aFrame);
static AnimationCollection* Get(const dom::Element* aElement,
PseudoStyleType aPseudoType);
// The element. Weak reference is fine since it owns us.
// FIXME(emilio): These are only needed for Destroy(), so maybe remove and
// rely on the caller clearing us properly?
dom::Element& mElement;
const PseudoStyleType mPseudo;
nsTArray<RefPtr<AnimationType>> mAnimations;
// We distinguish between destroying this by calling Destroy() vs directly
// clearing the collection.
// The former case represents regular updating due to style changes and should
// trigger subsequent restyles.
// The latter case represents document tear-down or other DOM surgery in
// which case we should not trigger restyles.
bool mCalledDestroy = false;
} // namespace mozilla
#endif // mozilla_AnimationCollection_h