tor-browser

The Tor Browser
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MediaElementAudioSourceNode.h (2269B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
      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 MediaElementAudioSourceNode_h_
      8 #define MediaElementAudioSourceNode_h_
      9 
     10 #include "MediaStreamAudioSourceNode.h"
     11 
     12 namespace mozilla::dom {
     13 
     14 class AudioContext;
     15 struct MediaElementAudioSourceOptions;
     16 
     17 class MediaElementAudioSourceNode final : public MediaStreamAudioSourceNode {
     18 public:
     19  NS_DECL_ISUPPORTS_INHERITED
     20  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(MediaElementAudioSourceNode,
     21                                           MediaStreamAudioSourceNode)
     22  static already_AddRefed<MediaElementAudioSourceNode> Create(
     23      AudioContext& aAudioContext,
     24      const MediaElementAudioSourceOptions& aOptions, ErrorResult& aRv);
     25 
     26  static already_AddRefed<MediaElementAudioSourceNode> Constructor(
     27      const GlobalObject& aGlobal, AudioContext& aAudioContext,
     28      const MediaElementAudioSourceOptions& aOptions, ErrorResult& aRv) {
     29    return Create(aAudioContext, aOptions, aRv);
     30  }
     31 
     32  JSObject* WrapObject(JSContext* aCx,
     33                       JS::Handle<JSObject*> aGivenProto) override;
     34 
     35  const char* NodeType() const override {
     36    return "MediaElementAudioSourceNode";
     37  }
     38 
     39  const char* CrossOriginErrorString() const override {
     40    return "MediaElementAudioSourceNodeCrossOrigin";
     41  }
     42 
     43  size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override {
     44    return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
     45  }
     46 
     47  HTMLMediaElement* MediaElement();
     48 
     49 private:
     50  explicit MediaElementAudioSourceNode(AudioContext* aContext,
     51                                       HTMLMediaElement* aElement);
     52  ~MediaElementAudioSourceNode() = default;
     53 
     54  void Destroy() override;
     55 
     56  // If AudioContext was not allowed to start, we would try to start it when
     57  // source starts.
     58  void ListenForAllowedToPlay(const MediaElementAudioSourceOptions& aOptions);
     59 
     60  MozPromiseRequestHolder<GenericNonExclusivePromise> mAllowedToPlayRequest;
     61 
     62  RefPtr<HTMLMediaElement> mElement;
     63 };
     64 
     65 }  // namespace mozilla::dom
     66 
     67 #endif