1 files changed, 44 insertions, 0 deletions
diff --git a/dom/media/webaudio/AudioProcessingEvent.cpp b/dom/media/webaudio/AudioProcessingEvent.cpp
new file mode 100644
index 0000000000..7d9987db07
--- /dev/null
+++ b/dom/media/webaudio/AudioProcessingEvent.cpp
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* 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/. */
+
+#include "AudioProcessingEvent.h"
+#include "mozilla/dom/AudioProcessingEventBinding.h"
+#include "mozilla/dom/ScriptSettings.h"
+#include "AudioContext.h"
+
+namespace mozilla::dom {
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(AudioProcessingEvent, Event, mInputBuffer,
+                                   mOutputBuffer, mNode)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AudioProcessingEvent)
+NS_INTERFACE_MAP_END_INHERITING(Event)
+
+NS_IMPL_ADDREF_INHERITED(AudioProcessingEvent, Event)
+NS_IMPL_RELEASE_INHERITED(AudioProcessingEvent, Event)
+
+AudioProcessingEvent::AudioProcessingEvent(ScriptProcessorNode* aOwner,
+                                           nsPresContext* aPresContext,
+                                           WidgetEvent* aEvent)
+    : Event(aOwner, aPresContext, aEvent), mPlaybackTime(0.0), mNode(aOwner) {}
+
+AudioProcessingEvent::~AudioProcessingEvent() = default;
+
+JSObject* AudioProcessingEvent::WrapObjectInternal(
+    JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
+  return AudioProcessingEvent_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+already_AddRefed<AudioBuffer> AudioProcessingEvent::LazilyCreateBuffer(
+    uint32_t aNumberOfChannels, ErrorResult& aRv) {
+  RefPtr<AudioBuffer> buffer = AudioBuffer::Create(
+      mNode->Context()->GetOwner(), aNumberOfChannels, mNode->BufferSize(),
+      mNode->Context()->SampleRate(), aRv);
+  MOZ_ASSERT(buffer || aRv.ErrorCodeIs(NS_ERROR_OUT_OF_MEMORY));
+  return buffer.forget();
+}
+
+}  // namespace mozilla::dom