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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 http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_AnimationTarget_h
#define mozilla_AnimationTarget_h
#include "mozilla/Attributes.h" // For MOZ_NON_OWNING_REF
#include "mozilla/Maybe.h"
#include "mozilla/RefPtr.h"
#include "nsCSSPseudoElements.h"
namespace mozilla {
namespace dom {
class Element;
} // namespace dom
struct OwningAnimationTarget
{
OwningAnimationTarget(dom::Element* aElement, CSSPseudoElementType aType)
: mElement(aElement), mPseudoType(aType) { }
explicit OwningAnimationTarget(dom::Element* aElement)
: mElement(aElement) { }
bool operator==(const OwningAnimationTarget& aOther) const
{
return mElement == aOther.mElement &&
mPseudoType == aOther.mPseudoType;
}
// mElement represents the parent element of a pseudo-element, not the
// generated content element.
RefPtr<dom::Element> mElement;
CSSPseudoElementType mPseudoType = CSSPseudoElementType::NotPseudo;
};
struct NonOwningAnimationTarget
{
NonOwningAnimationTarget(dom::Element* aElement, CSSPseudoElementType aType)
: mElement(aElement), mPseudoType(aType) { }
explicit NonOwningAnimationTarget(const OwningAnimationTarget& aOther)
: mElement(aOther.mElement), mPseudoType(aOther.mPseudoType) { }
// mElement represents the parent element of a pseudo-element, not the
// generated content element.
dom::Element* MOZ_NON_OWNING_REF mElement = nullptr;
CSSPseudoElementType mPseudoType = CSSPseudoElementType::NotPseudo;
};
// Helper functions for cycle-collecting Maybe<OwningAnimationTarget>
inline void
ImplCycleCollectionTraverse(nsCycleCollectionTraversalCallback& aCallback,
Maybe<OwningAnimationTarget>& aTarget,
const char* aName,
uint32_t aFlags = 0)
{
if (aTarget) {
ImplCycleCollectionTraverse(aCallback, aTarget->mElement, aName, aFlags);
}
}
inline void
ImplCycleCollectionUnlink(Maybe<OwningAnimationTarget>& aTarget)
{
if (aTarget) {
ImplCycleCollectionUnlink(aTarget->mElement);
}
}
} // namespace mozilla
#endif // mozilla_AnimationTarget_h
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