author Masayuki Nakano <>
Wed, 26 Aug 2015 21:56:59 +0900
changeset 291977 cd06f5f5641c3dfb7f07db878584d389fb4df1b7
parent 283644 59e35b93e162f0e95b5c1e3fa43e0013e16f7115
child 298052 33cbe1ef4956c93d6b9658656f0ec65a005b4100
permissions -rw-r--r--
Bug 895274 part.3 Make the enum of event messages a named enum IGNORE IDL r=smaug

/* -*- 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_dom_DocumentTimeline_h
#define mozilla_dom_DocumentTimeline_h

#include "mozilla/TimeStamp.h"
#include "AnimationTimeline.h"
#include "nsIDocument.h"
#include "nsRefreshDriver.h"

struct JSContext;

namespace mozilla {
namespace dom {

class DocumentTimeline final : public AnimationTimeline
  explicit DocumentTimeline(nsIDocument* aDocument)
    : AnimationTimeline(aDocument->GetParentObject())
    , mDocument(aDocument)

  virtual ~DocumentTimeline() { }


  virtual JSObject* WrapObject(JSContext* aCx,
                               JS::Handle<JSObject*> aGivenProto) override;

  // AnimationTimeline methods
  virtual Nullable<TimeDuration> GetCurrentTime() const override;

  bool TracksWallclockTime() const override
    nsRefreshDriver* refreshDriver = GetRefreshDriver();
    return !refreshDriver ||
  Nullable<TimeDuration> ToTimelineTime(const TimeStamp& aTimeStamp) const
  TimeStamp ToTimeStamp(const TimeDuration& aTimelineTime) const override;

  TimeStamp GetCurrentTimeStamp() const;
  nsRefreshDriver* GetRefreshDriver() const;

  nsCOMPtr<nsIDocument> mDocument;

  // The most recently used refresh driver 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 mLastRefreshDriverTime;

} // namespace dom
} // namespace mozilla

#endif // mozilla_dom_DocumentTimeline_h