Bug 775302 - Stub out the implementation of mozAudioContext; r=bzbarsky,khuey

content/media/Makefile.in

@@ -62,6 +62,8 @@ CPPSRCS += \
   $(NULL)
 endif
 
+PARALLEL_DIRS += webaudio
+
 ifdef MOZ_RAW
 PARALLEL_DIRS += raw
 endif

content/media/webaudio/AudioContext.cpp

@@ -0,0 +1,56 @@
+/* -*- 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 "AudioContext.h"
+#include "nsContentUtils.h"
+#include "nsIDOMWindow.h"
+#include "mozilla/ErrorResult.h"
+#include "mozilla/dom/AudioContextBinding.h"
+
+namespace mozilla {
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(AudioContext, mWindow)
+NS_IMPL_CYCLE_COLLECTING_ADDREF(AudioContext)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(AudioContext)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AudioContext)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+AudioContext::AudioContext(nsIDOMWindow* aWindow)
+  : mWindow(aWindow)
+{
+  SetIsDOMBinding();
+}
+
+AudioContext::~AudioContext()
+{
+}
+
+JSObject*
+AudioContext::WrapObject(JSContext* aCx, JSObject* aScope,
+                         bool* aTriedToWrap)
+{
+  return dom::mozAudioContextBinding::Wrap(aCx, aScope, this,
+                                           aTriedToWrap);
+}
+
+/* static */ already_AddRefed<AudioContext>
+AudioContext::Constructor(nsISupports* aGlobal, ErrorResult& aRv)
+{
+  nsCOMPtr<nsIDOMWindow> window = do_QueryInterface(aGlobal);
+  if (!window) {
+    aRv.Throw(NS_ERROR_FAILURE);
+    return nullptr;
+  }
+
+  AudioContext* object = new AudioContext(window);
+  NS_ADDREF(object);
+  return object;
+}
+
+}
+

content/media/webaudio/AudioContext.h

@@ -0,0 +1,46 @@
+/* -*- 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 "nsWrapperCache.h"
+#include "nsCycleCollectionParticipant.h"
+#include "mozilla/Attributes.h"
+#include "nsCOMPtr.h"
+
+class JSContext;
+class nsIDOMWindow;
+
+namespace mozilla {
+
+class ErrorResult;
+
+class AudioContext MOZ_FINAL : public nsISupports,
+                               public nsWrapperCache
+{
+  explicit AudioContext(nsIDOMWindow* aParentWindow);
+
+public:
+  virtual ~AudioContext();
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(AudioContext)
+
+  nsIDOMWindow* GetParentObject() const
+  {
+    return mWindow;
+  }
+
+  virtual JSObject* WrapObject(JSContext* aCx, JSObject* aScope,
+                               bool* aTriedToWrap);
+
+  static already_AddRefed<AudioContext>
+  Constructor(nsISupports* aGlobal, ErrorResult& aRv);
+
+private:
+  nsCOMPtr<nsIDOMWindow> mWindow;
+};
+
+}
+

content/media/webaudio/Makefile.in

@@ -0,0 +1,25 @@
+# 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/.
+
+DEPTH            := @DEPTH@
+topsrcdir        := @top_srcdir@
+srcdir           := @srcdir@
+VPATH            := @srcdir@
+FAIL_ON_WARNINGS := 1
+
+include $(DEPTH)/config/autoconf.mk
+
+MODULE         := content
+LIBRARY_NAME   := gkconwebaudio_s
+LIBXUL_LIBRARY := 1
+
+CPPSRCS := \
+  AudioContext.cpp
+  $(NULL)
+
+PARALLEL_DIRS := test
+
+FORCE_STATIC_LIB := 1
+
+include $(topsrcdir)/config/rules.mk

content/media/webaudio/test/Makefile.in

@@ -0,0 +1,17 @@
+# 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/.
+
+DEPTH          := @DEPTH@
+topsrcdir      := @top_srcdir@
+srcdir         := @srcdir@
+VPATH          := @srcdir@
+relativesrcdir := @relativesrcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+MOCHITEST_FILES := \
+  test_AudioContext.html \
+  $(NULL)
+
+include $(topsrcdir)/config/rules.mk

content/media/webaudio/test/test_AudioContext.html

@@ -0,0 +1,22 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test whether we can create an AudioContext interface</title>
+  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+
+SimpleTest.waitForExplicitFinish();
+addLoadEvent(function() {
+  var ac = new mozAudioContext();
+  ok(ac, "Create a mozAudioContext object");
+  SimpleTest.finish();
+});
+
+</script>
+</pre>
+</body>
+</html>

dom/bindings/Bindings.conf

@@ -61,6 +61,11 @@
 
 DOMInterfaces = {
 
+'mozAudioContext': {
+    'nativeType': 'AudioContext',
+    'prefable': True,
+},
+
 'Blob': [
 {
     'headerFile': 'nsIDOMFile.h',

dom/dom-config.mk

@@ -25,6 +25,7 @@ DOM_SRCDIRS = \
   content/base/src \
   content/html/content/src \
   content/html/document/src \
+  content/media/webaudio \
   content/svg/content/src \
   layout/generic \
   layout/style \

dom/webidl/AudioContext.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://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html
+ *
+ * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
+ * liability, trademark and document use rules apply.
+ */
+
+[Constructor]
+interface mozAudioContext {
+};
+

dom/webidl/WebIDL.mk

@@ -9,6 +9,7 @@ generated_webidl_files = \
   $(NULL)
 
 webidl_files = \
+  AudioContext.webidl \
   CanvasRenderingContext2D.webidl \
   CSSStyleDeclaration.webidl \
   Function.webidl \

layout/build/Makefile.in

@@ -134,6 +134,7 @@ endif #}
 ifdef MOZ_MEDIA
 SHARED_LIBRARY_LIBS 	+= \
 	$(DEPTH)/content/media/$(LIB_PREFIX)gkconmedia_s.$(LIB_SUFFIX) \
+	$(DEPTH)/content/media/webaudio/$(LIB_PREFIX)gkconwebaudio_s.$(LIB_SUFFIX) \
 	$(DEPTH)/content/media/webrtc/$(LIB_PREFIX)gkconwebrtc_s.$(LIB_SUFFIX) \
 	$(NULL)
 endif