gecko-dev/dom/animation/AnimationTimeline.h

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1.7 KiB
C++

/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
/* 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_dom_AnimationTimeline_h
#define mozilla_dom_AnimationTimeline_h
#include "nsWrapperCache.h"
#include "nsCycleCollectionParticipant.h"
#include "mozilla/Attributes.h"
#include "mozilla/TimeStamp.h"
#include "js/TypeDecls.h"
#include "nsIDocument.h"
struct JSContext;
namespace mozilla {
namespace dom {
class AnimationTimeline MOZ_FINAL : public nsWrapperCache
{
public:
explicit AnimationTimeline(nsIDocument* aDocument)
: mDocument(aDocument)
{
}
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(AnimationTimeline)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(AnimationTimeline)
nsISupports* GetParentObject() const { return mDocument; }
virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
// WebIDL API
Nullable<double> GetCurrentTime() const;
Nullable<TimeDuration> GetCurrentTimeDuration() const;
Nullable<TimeDuration> ToTimelineTime(const TimeStamp& aTimeStamp) const;
TimeStamp ToTimeStamp(const TimeDuration& aTimelineTime) const;
protected:
TimeStamp GetCurrentTimeStamp() const;
virtual ~AnimationTimeline() { }
nsCOMPtr<nsIDocument> mDocument;
// Store the most recently returned value of current time. This is used
// in cases where we don't have a refresh driver (e.g. because we are in
// a display:none iframe).
mutable TimeStamp mLastCurrentTime;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_AnimationTimeline_h