dom/base/AnimationFrameProvider.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_AnimationFrameProvider_h
   8 #define mozilla_dom_AnimationFrameProvider_h
   9
  10 #include "mozilla/dom/AnimationFrameProviderBinding.h"
  11 #include "mozilla/dom/RequestCallbackManager.h"
  12
  13 namespace mozilla::dom {
  14
  15 class HTMLVideoElement;
  16
  17 using FrameRequest = RequestCallbackEntry<FrameRequestCallback>;
  18 using FrameRequestManagerBase = RequestCallbackManager<FrameRequestCallback>;
  19
  20 class FrameRequestManager final : public FrameRequestManagerBase {
  21  public:
  22   FrameRequestManager();
  23   ~FrameRequestManager();
  24
  25   using FrameRequestManagerBase::Cancel;
  26   using FrameRequestManagerBase::Schedule;
  27   using FrameRequestManagerBase::Take;
  28
  29   void Schedule(HTMLVideoElement*);
  30   bool Cancel(HTMLVideoElement*);
  31   bool IsEmpty() const {
  32     return FrameRequestManagerBase::IsEmpty() && mVideoCallbacks.IsEmpty();
  33   }
  34   void Take(nsTArray<RefPtr<HTMLVideoElement>>&);
  35   void Unlink();
  36   void Traverse(nsCycleCollectionTraversalCallback&);
  37
  38  private:
  39   nsTArray<RefPtr<HTMLVideoElement>> mVideoCallbacks;
  40 };
  41
  42 }  // namespace mozilla::dom
  43
  44 #endif