diff -r 000000000000 -r 6474c204b198 dom/voicemail/Voicemail.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/voicemail/Voicemail.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,192 @@
+/* -*- 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 http://mozilla.org/MPL/2.0/. */
+
+#include "Voicemail.h"
+
+#include "mozilla/dom/MozVoicemailBinding.h"
+#include "nsIDOMMozVoicemailStatus.h"
+#include "nsIDOMMozVoicemailEvent.h"
+
+#include "mozilla/Preferences.h"
+#include "mozilla/Services.h"
+#include "nsDOMClassInfo.h"
+#include "nsServiceManagerUtils.h"
+#include "GeneratedEvents.h"
+
+#define NS_RILCONTENTHELPER_CONTRACTID "@mozilla.org/ril/content-helper;1"
+const char* kPrefRilNumRadioInterfaces = "ril.numRadioInterfaces";
+
+using namespace mozilla::dom;
+
+class Voicemail::Listener : public nsIVoicemailListener
+{
+  Voicemail* mVoicemail;
+
+public:
+  NS_DECL_ISUPPORTS
+  NS_FORWARD_SAFE_NSIVOICEMAILLISTENER(mVoicemail)
+
+  Listener(Voicemail* aVoicemail)
+    : mVoicemail(aVoicemail)
+  {
+    MOZ_ASSERT(mVoicemail);
+  }
+
+  void Disconnect()
+  {
+    MOZ_ASSERT(mVoicemail);
+    mVoicemail = nullptr;
+  }
+};
+
+NS_IMPL_ISUPPORTS(Voicemail::Listener, nsIVoicemailListener)
+
+Voicemail::Voicemail(nsPIDOMWindow* aWindow,
+                     nsIVoicemailProvider* aProvider)
+  : DOMEventTargetHelper(aWindow)
+  , mProvider(aProvider)
+{
+  mListener = new Listener(this);
+  DebugOnly<nsresult> rv = mProvider->RegisterVoicemailMsg(mListener);
+  NS_WARN_IF_FALSE(NS_SUCCEEDED(rv),
+                   "Failed registering voicemail messages with provider");
+}
+
+Voicemail::~Voicemail()
+{
+  MOZ_ASSERT(mProvider && mListener);
+
+  mListener->Disconnect();
+  mProvider->UnregisterVoicemailMsg(mListener);
+}
+
+JSObject*
+Voicemail::WrapObject(JSContext* aCx)
+{
+  return MozVoicemailBinding::Wrap(aCx, this);
+}
+
+bool
+Voicemail::IsValidServiceId(uint32_t aServiceId) const
+{
+  uint32_t numClients = mozilla::Preferences::GetUint(kPrefRilNumRadioInterfaces, 1);
+
+  return aServiceId < numClients;
+}
+
+bool
+Voicemail::PassedOrDefaultServiceId(const Optional<uint32_t>& aServiceId,
+                                    uint32_t& aResult) const
+{
+  if (aServiceId.WasPassed()) {
+    if (!IsValidServiceId(aServiceId.Value())) {
+      return false;
+    }
+    aResult = aServiceId.Value();
+  } else {
+    mProvider->GetVoicemailDefaultServiceId(&aResult);
+  }
+
+  return true;
+}
+
+// MozVoicemail WebIDL
+
+already_AddRefed<nsIDOMMozVoicemailStatus>
+Voicemail::GetStatus(const Optional<uint32_t>& aServiceId,
+                     ErrorResult& aRv) const
+{
+  if (!mProvider) {
+    aRv.Throw(NS_ERROR_UNEXPECTED);
+    return nullptr;
+  }
+
+  uint32_t id = 0;
+  if (!PassedOrDefaultServiceId(aServiceId, id)) {
+    aRv.Throw(NS_ERROR_INVALID_ARG);
+    return nullptr;
+  }
+  nsCOMPtr<nsIDOMMozVoicemailStatus> status;
+  nsresult rv = mProvider->GetVoicemailStatus(id, getter_AddRefs(status));
+  if (NS_FAILED(rv)) {
+    aRv.Throw(rv);
+    return nullptr;
+  }
+
+  return status.forget();
+}
+
+void
+Voicemail::GetNumber(const Optional<uint32_t>& aServiceId, nsString& aNumber,
+                     ErrorResult& aRv) const
+{
+  aNumber.SetIsVoid(true);
+
+  if (!mProvider) {
+    aRv.Throw(NS_ERROR_UNEXPECTED);
+    return;
+  }
+
+  uint32_t id = 0;
+  if (!PassedOrDefaultServiceId(aServiceId, id)) {
+    aRv.Throw(NS_ERROR_INVALID_ARG);
+    return;
+  }
+
+  aRv = mProvider->GetVoicemailNumber(id, aNumber);
+}
+
+void
+Voicemail::GetDisplayName(const Optional<uint32_t>& aServiceId, nsString& aDisplayName,
+                          ErrorResult& aRv) const
+{
+  aDisplayName.SetIsVoid(true);
+
+  if (!mProvider) {
+    aRv.Throw(NS_ERROR_UNEXPECTED);
+    return;
+  }
+
+  uint32_t id = 0;
+  if (!PassedOrDefaultServiceId(aServiceId, id)) {
+    aRv.Throw(NS_ERROR_INVALID_ARG);
+    return;
+  }
+
+  aRv = mProvider->GetVoicemailDisplayName(id, aDisplayName);
+}
+
+// nsIVoicemailListener
+
+NS_IMETHODIMP
+Voicemail::NotifyStatusChanged(nsIDOMMozVoicemailStatus* aStatus)
+{
+  nsCOMPtr<nsIDOMEvent> event;
+  NS_NewDOMMozVoicemailEvent(getter_AddRefs(event), this, nullptr, nullptr);
+
+  nsCOMPtr<nsIDOMMozVoicemailEvent> ce = do_QueryInterface(event);
+  nsresult rv = ce->InitMozVoicemailEvent(NS_LITERAL_STRING("statuschanged"),
+                                          false, false, aStatus);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  return DispatchTrustedEvent(ce);
+}
+
+nsresult
+NS_NewVoicemail(nsPIDOMWindow* aWindow, Voicemail** aVoicemail)
+{
+  nsPIDOMWindow* innerWindow = aWindow->IsInnerWindow() ?
+    aWindow :
+    aWindow->GetCurrentInnerWindow();
+
+  nsCOMPtr<nsIVoicemailProvider> provider =
+    do_GetService(NS_RILCONTENTHELPER_CONTRACTID);
+  NS_ENSURE_STATE(provider);
+
+  nsRefPtr<Voicemail> voicemail = new Voicemail(innerWindow, provider);
+  voicemail.forget(aVoicemail);
+  return NS_OK;
+}