File: AnimationFrameProvider.h

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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_dom_AnimationFrameProvider_h
#define mozilla_dom_AnimationFrameProvider_h

#include "mozilla/dom/AnimationFrameProviderBinding.h"
#include "mozilla/dom/RequestCallbackManager.h"

namespace mozilla::dom {

class HTMLVideoElement;

using FrameRequest = RequestCallbackEntry<FrameRequestCallback>;
using FrameRequestManagerBase = RequestCallbackManager<FrameRequestCallback>;

class FrameRequestManager final : public FrameRequestManagerBase {
 public:
  FrameRequestManager();
  ~FrameRequestManager();

  using FrameRequestManagerBase::Cancel;
  using FrameRequestManagerBase::Schedule;

  void Schedule(HTMLVideoElement*);
  bool Cancel(HTMLVideoElement*);
  bool IsEmpty() const {
    return FrameRequestManagerBase::IsEmpty() && mVideoCallbacks.IsEmpty();
  }
  void Take(nsTArray<RefPtr<HTMLVideoElement>>&);
  void Unlink();
  void Traverse(nsCycleCollectionTraversalCallback&);

 private:
  nsTArray<RefPtr<HTMLVideoElement>> mVideoCallbacks;
};

}  // namespace mozilla::dom

#endif