зеркало из https://github.com/mozilla/gecko-dev.git
72 строки
2.5 KiB
C++
72 строки
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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#include "AudioWorkletImpl.h"
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#include "AudioContext.h"
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#include "AudioNodeTrack.h"
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#include "mozilla/dom/AudioWorkletBinding.h"
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#include "mozilla/dom/AudioWorkletGlobalScope.h"
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#include "mozilla/dom/Worklet.h"
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#include "mozilla/dom/WorkletThread.h"
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#include "nsGlobalWindowInner.h"
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namespace mozilla {
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/* static */ already_AddRefed<dom::Worklet> AudioWorkletImpl::CreateWorklet(
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dom::AudioContext* aContext, ErrorResult& aRv) {
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MOZ_ASSERT(NS_IsMainThread());
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nsCOMPtr<nsPIDOMWindowInner> window = aContext->GetOwner();
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if (NS_WARN_IF(!window)) {
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aRv.Throw(NS_ERROR_FAILURE);
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return nullptr;
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}
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nsCOMPtr<nsIPrincipal> principal =
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nsGlobalWindowInner::Cast(window)->GetPrincipal();
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if (NS_WARN_IF(!principal)) {
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aRv.Throw(NS_ERROR_FAILURE);
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return nullptr;
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}
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RefPtr<AudioWorkletImpl> impl =
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new AudioWorkletImpl(window, principal, aContext->DestinationTrack());
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// The Worklet owns a reference to the AudioContext so as to keep the graph
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// thread running as long as the Worklet is alive by keeping the
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// AudioDestinationNode alive.
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return MakeAndAddRef<dom::Worklet>(window, std::move(impl),
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ToSupports(aContext));
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}
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AudioWorkletImpl::AudioWorkletImpl(nsPIDOMWindowInner* aWindow,
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nsIPrincipal* aPrincipal,
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AudioNodeTrack* aDestinationTrack)
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: WorkletImpl(aWindow, aPrincipal), mDestinationTrack(aDestinationTrack) {}
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AudioWorkletImpl::~AudioWorkletImpl() = default;
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JSObject* AudioWorkletImpl::WrapWorklet(JSContext* aCx, dom::Worklet* aWorklet,
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JS::Handle<JSObject*> aGivenProto) {
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MOZ_ASSERT(NS_IsMainThread());
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return dom::AudioWorklet_Binding::Wrap(aCx, aWorklet, aGivenProto);
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}
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nsresult AudioWorkletImpl::SendControlMessage(
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already_AddRefed<nsIRunnable> aRunnable) {
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mDestinationTrack->SendRunnable(std::move(aRunnable));
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return NS_OK;
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}
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already_AddRefed<dom::WorkletGlobalScope>
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AudioWorkletImpl::ConstructGlobalScope() {
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dom::WorkletThread::AssertIsOnWorkletThread();
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return MakeAndAddRef<dom::AudioWorkletGlobalScope>(this);
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}
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} // namespace mozilla
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