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AudioWorkletImpl.h (2074B)

      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 https://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef AudioWorkletImpl_h
      8 #define AudioWorkletImpl_h
      9 
     10 #include "mozilla/dom/AudioWorkletGlobalScope.h"
     11 #include "mozilla/dom/MessagePort.h"
     12 #include "mozilla/dom/WorkletImpl.h"
     13 
     14 namespace mozilla {
     15 
     16 class AudioNodeTrack;
     17 
     18 namespace dom {
     19 class AudioContext;
     20 class AudioWorklet;
     21 }  // namespace dom
     22 
     23 class AudioWorkletImpl final : public WorkletImpl {
     24 public:
     25  // Methods for parent thread only:
     26 
     27  static already_AddRefed<dom::AudioWorklet> CreateWorklet(
     28      dom::AudioContext* aContext, ErrorResult& aRv);
     29 
     30  JSObject* WrapWorklet(JSContext* aCx, dom::Worklet* aWorklet,
     31                        JS::Handle<JSObject*> aGivenProto) override;
     32 
     33  nsresult SendControlMessage(already_AddRefed<nsIRunnable> aRunnable) override;
     34 
     35  nsContentPolicyType ContentPolicyType() const override {
     36    return nsIContentPolicy::TYPE_INTERNAL_AUDIOWORKLET;
     37  }
     38 
     39  // Execution thread only.
     40  dom::AudioWorkletGlobalScope* GetGlobalScope() {
     41    return static_cast<dom::AudioWorkletGlobalScope*>(
     42        WorkletImpl::GetGlobalScope());
     43  }
     44 
     45  // Any thread:
     46  AudioNodeTrack* DestinationTrack() const { return mDestinationTrack; }
     47 
     48  void OnAddModuleStarted() const override;
     49  void OnAddModulePromiseSettled() const override;
     50 
     51 protected:
     52  // Execution thread only.
     53  already_AddRefed<dom::WorkletGlobalScope> ConstructGlobalScope(
     54      JSContext* aCx) override;
     55 
     56 private:
     57  AudioWorkletImpl(nsPIDOMWindowInner* aWindow, nsIPrincipal* aPrincipal,
     58                   AudioNodeTrack* aDestinationTrack,
     59                   dom::UniqueMessagePortId&& aPortIdentifier);
     60  ~AudioWorkletImpl();
     61 
     62  const RefPtr<AudioNodeTrack> mDestinationTrack;
     63  dom::UniqueMessagePortId mGlobalScopePortIdentifier;
     64 };
     65 
     66 }  // namespace mozilla
     67 
     68 #endif  // AudioWorkletImpl_h