michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "CellBroadcast.h"
michael@0: #include "mozilla/dom/MozCellBroadcastBinding.h"
michael@0: #include "nsIDOMMozCellBroadcastEvent.h"
michael@0: #include "nsIDOMMozCellBroadcastMessage.h"
michael@0: #include "nsServiceManagerUtils.h"
michael@0: #include "GeneratedEvents.h"
michael@0: 
michael@0: #define NS_RILCONTENTHELPER_CONTRACTID "@mozilla.org/ril/content-helper;1"
michael@0: 
michael@0: using namespace mozilla::dom;
michael@0: 
michael@0: /**
michael@0:  * CellBroadcast::Listener Implementation.
michael@0:  */
michael@0: 
michael@0: class CellBroadcast::Listener : public nsICellBroadcastListener
michael@0: {
michael@0: private:
michael@0:   CellBroadcast* mCellBroadcast;
michael@0: 
michael@0: public:
michael@0:   NS_DECL_ISUPPORTS
michael@0:   NS_FORWARD_SAFE_NSICELLBROADCASTLISTENER(mCellBroadcast)
michael@0: 
michael@0:   Listener(CellBroadcast* aCellBroadcast)
michael@0:     : mCellBroadcast(aCellBroadcast)
michael@0:   {
michael@0:     MOZ_ASSERT(mCellBroadcast);
michael@0:   }
michael@0: 
michael@0:   void Disconnect()
michael@0:   {
michael@0:     MOZ_ASSERT(mCellBroadcast);
michael@0:     mCellBroadcast = nullptr;
michael@0:   }
michael@0: };
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(CellBroadcast::Listener, nsICellBroadcastListener)
michael@0: 
michael@0: /**
michael@0:  * CellBroadcast Implementation.
michael@0:  */
michael@0: 
michael@0: // static
michael@0: already_AddRefed<CellBroadcast>
michael@0: CellBroadcast::Create(nsPIDOMWindow* aWindow, ErrorResult& aRv)
michael@0: {
michael@0:   MOZ_ASSERT(aWindow);
michael@0:   MOZ_ASSERT(aWindow->IsInnerWindow());
michael@0: 
michael@0:   nsCOMPtr<nsICellBroadcastProvider> provider =
michael@0:     do_GetService(NS_RILCONTENTHELPER_CONTRACTID);
michael@0:   if (!provider) {
michael@0:     aRv.Throw(NS_ERROR_UNEXPECTED);
michael@0:     return nullptr;
michael@0:   }
michael@0: 
michael@0:   nsRefPtr<CellBroadcast> cb = new CellBroadcast(aWindow, provider);
michael@0:   return cb.forget();
michael@0: }
michael@0: 
michael@0: CellBroadcast::CellBroadcast(nsPIDOMWindow *aWindow,
michael@0:                              nsICellBroadcastProvider *aProvider)
michael@0:   : DOMEventTargetHelper(aWindow)
michael@0:   , mProvider(aProvider)
michael@0: {
michael@0:   mListener = new Listener(this);
michael@0:   DebugOnly<nsresult> rv = mProvider->RegisterCellBroadcastMsg(mListener);
michael@0:   NS_WARN_IF_FALSE(NS_SUCCEEDED(rv),
michael@0:                    "Failed registering Cell Broadcast callback with provider");
michael@0: }
michael@0: 
michael@0: CellBroadcast::~CellBroadcast()
michael@0: {
michael@0:   MOZ_ASSERT(mProvider && mListener);
michael@0: 
michael@0:   mListener->Disconnect();
michael@0:   mProvider->UnregisterCellBroadcastMsg(mListener);
michael@0: }
michael@0: 
michael@0: JSObject*
michael@0: CellBroadcast::WrapObject(JSContext* aCx)
michael@0: {
michael@0:   return MozCellBroadcastBinding::Wrap(aCx, this);
michael@0: }
michael@0: 
michael@0: // Forwarded nsICellBroadcastListener methods
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: CellBroadcast::NotifyMessageReceived(nsIDOMMozCellBroadcastMessage* aMessage)
michael@0: {
michael@0:   nsCOMPtr<nsIDOMEvent> event;
michael@0:   NS_NewDOMMozCellBroadcastEvent(getter_AddRefs(event), this, nullptr, nullptr);
michael@0: 
michael@0:   nsCOMPtr<nsIDOMMozCellBroadcastEvent> ce = do_QueryInterface(event);
michael@0:   nsresult rv = ce->InitMozCellBroadcastEvent(NS_LITERAL_STRING("received"),
michael@0:                                               true, false, aMessage);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   return DispatchTrustedEvent(ce);
michael@0: }