Bug 1460907 - Implement AudioParamMap definitions. r=karlt,qdot

MozReview-Commit-ID: AdsI9QU3VOX

--HG--
extra : rebase_source : b72d898550289f0637d7cb1c9796a12a7b4fc782

dom/media/webaudio/AudioParamMap.cpp

@@ -0,0 +1,30 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 https://mozilla.org/MPL/2.0/. */
+
+#include "AudioParamMap.h"
+#include "mozilla/dom/AudioParamMapBinding.h"
+
+namespace mozilla {
+namespace dom {
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(AudioParamMap, mParent)
+
+NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(AudioParamMap, AddRef)
+NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(AudioParamMap, Release)
+
+AudioParamMap::AudioParamMap(nsPIDOMWindowInner* aParent) :
+  mParent(aParent)
+{
+}
+
+JSObject*
+AudioParamMap::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return AudioParamMapBinding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace dom
+} // namespace mozilla

dom/media/webaudio/AudioParamMap.h

@@ -0,0 +1,38 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 https://mozilla.org/MPL/2.0/. */
+
+#ifndef AudioParamMap_h_
+#define AudioParamMap_h_
+
+#include "nsWrapperCache.h"
+#include "nsCOMPtr.h"
+
+class nsPIDOMWindowInner;
+
+namespace mozilla {
+namespace dom {
+
+class AudioParamMap final : public nsWrapperCache
+{
+public:
+  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(AudioParamMap)
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(AudioParamMap)
+
+  explicit AudioParamMap(nsPIDOMWindowInner* aParent);
+
+  nsPIDOMWindowInner* GetParentObject() const { return mParent; }
+
+  JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+private:
+  ~AudioParamMap() = default;
+  nsCOMPtr<nsPIDOMWindowInner> mParent;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // AudioParamMap_h_

dom/media/webaudio/moz.build

@@ -49,6 +49,7 @@ EXPORTS.mozilla.dom += [
     'AudioListener.h',
     'AudioNode.h',
     'AudioParam.h',
+    'AudioParamMap.h',
     'AudioProcessingEvent.h',
     'AudioScheduledSourceNode.h',
     'BiquadFilterNode.h',
@@ -85,6 +86,7 @@ UNIFIED_SOURCES += [
     'AudioNodeExternalInputStream.cpp',
     'AudioNodeStream.cpp',
     'AudioParam.cpp',
+    'AudioParamMap.cpp',
     'AudioProcessingEvent.cpp',
     'AudioScheduledSourceNode.cpp',
     'BiquadFilterNode.cpp',

dom/tests/mochitest/general/test_interfaces.js

@@ -150,6 +150,8 @@ var interfaceNamesInGlobalScope =
     {name: "AudioNode", insecureContext: true},
 // IMPORTANT: Do not change this list without review from a DOM peer!
     {name: "AudioParam", insecureContext: true},
+// IMPORTANT: Do not change this list without review from a DOM peer!
+    {name: "AudioParamMap", insecureContext: true, disabled: true},
 // IMPORTANT: Do not change this list without review from a DOM peer!
     {name: "AudioProcessingEvent", insecureContext: true},
 // IMPORTANT: Do not change this list without review from a DOM peer!

dom/webidl/AudioParamMap.webidl

@@ -0,0 +1,16 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/.
+ *
+ * The origin of this IDL file is
+ * https://webaudio.github.io/web-audio-api/#audioparammap
+ *
+ * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
+ * liability, trademark and document use rules apply.
+ */
+
+[Pref="dom.audioworklet.enabled"]
+interface AudioParamMap {
+    readonly maplike<DOMString, AudioParam>;
+};

dom/webidl/moz.build

@@ -379,6 +379,7 @@ WEBIDL_FILES = [
     'AudioListener.webidl',
     'AudioNode.webidl',
     'AudioParam.webidl',
+    'AudioParamMap.webidl',
     'AudioProcessingEvent.webidl',
     'AudioScheduledSourceNode.webidl',
     'AudioStreamTrack.webidl',