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/* 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
#ifndef mozilla_TimelineScope_h
#define mozilla_TimelineScope_h
#include <utility>
#include "mozilla/LinkedList.h"
#include "mozilla/PseudoStyleRequest.h"
#include "mozilla/RefPtr.h"
#include "nsAtom.h"
#include "nsISupportsImpl.h"
#include "nsTArray.h"
namespace mozilla {
namespace dom {
class Element;
}
// The timeline names that `timeline-scope` on a (pseudo-)element limits to its
// subtree. Mirrors TimelineCollection: owned by the element's
// ElementAnimationData, and linked into a TimelineManager list so that it can
// be destroyed with the pres context.
class TimelineScope final : public LinkedListElement<TimelineScope> {
public:
TimelineScope(dom::Element& aElement,
const PseudoStyleRequest& aPseudoRequest)
: mElement(aElement), mPseudo(aPseudoRequest) {
MOZ_COUNT_CTOR(TimelineScope);
}
~TimelineScope();
void SetNames(nsTArray<RefPtr<const nsAtom>>&& aNames) {
mNames = std::move(aNames);
}
const nsTArray<RefPtr<const nsAtom>>& Names() const { return mNames; }
// An empty list represents `timeline-scope: all`.
bool ScopesAll() const { return mNames.IsEmpty(); }
bool Scopes(const nsAtom* aName) const {
return ScopesAll() || mNames.Contains(aName);
}
void Destroy();
static TimelineScope* Get(const dom::Element* aElement,
const PseudoStyleRequest& aPseudoRequest);
private:
// The element. Weak reference is fine since it owns us.
dom::Element& mElement;
const PseudoStyleRequest mPseudo;
// Could become AutoTArray<RefPtr<const nsAtom>, 1> if a single name turns
// out to be the common case.
nsTArray<RefPtr<const nsAtom>> mNames;
};
} // namespace mozilla
#endif // mozilla_TimelineScope_h