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6c32b964cd
This should both be faster and simpler. Also will allow us in the future to animate more pseudos without having to add a gazillion properties. I think we should try to clear more stuff (maybe the whole animation data) on unbind, but that's a bit tangential. Differential Revision: https://phabricator.services.mozilla.com/D169860
71 lines
2.2 KiB
C++
71 lines
2.2 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_AnimationCollection_h
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#define mozilla_AnimationCollection_h
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#include "mozilla/Assertions.h"
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#include "mozilla/LinkedList.h"
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#include "mozilla/RefPtr.h"
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#include "nsCSSPseudoElements.h"
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#include "nsTArrayForwardDeclare.h"
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class nsAtom;
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class nsIFrame;
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class nsPresContext;
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namespace mozilla {
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namespace dom {
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class Element;
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}
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enum class PseudoStyleType : uint8_t;
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template <class AnimationType>
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class AnimationCollection
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: public LinkedListElement<AnimationCollection<AnimationType>> {
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typedef AnimationCollection<AnimationType> SelfType;
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public:
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AnimationCollection(dom::Element& aOwner, PseudoStyleType aPseudoType)
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: mElement(aOwner), mPseudo(aPseudoType) {
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MOZ_COUNT_CTOR(AnimationCollection);
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}
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~AnimationCollection();
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void Destroy();
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// Given the frame |aFrame| with possibly animated content, finds its
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// associated collection of animations. If |aFrame| is a generated content
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// frame, this function may examine the parent frame to search for such
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// animations.
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static AnimationCollection* Get(const nsIFrame* aFrame);
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static AnimationCollection* Get(const dom::Element* aElement,
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PseudoStyleType aPseudoType);
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// The element. Weak reference is fine since it owns us.
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// FIXME(emilio): These are only needed for Destroy(), so maybe remove and
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// rely on the caller clearing us properly?
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dom::Element& mElement;
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const PseudoStyleType mPseudo;
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nsTArray<RefPtr<AnimationType>> mAnimations;
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private:
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// We distinguish between destroying this by calling Destroy() vs directly
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// clearing the collection.
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//
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// The former case represents regular updating due to style changes and should
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// trigger subsequent restyles.
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//
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// The latter case represents document tear-down or other DOM surgery in
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// which case we should not trigger restyles.
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bool mCalledDestroy = false;
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};
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} // namespace mozilla
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#endif // mozilla_AnimationCollection_h
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