gecko-dev/dom/cellbroadcast/CellBroadcast.cpp

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/* -*- 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 "mozilla/dom/CellBroadcast.h"
#include "mozilla/dom/CellBroadcastMessage.h"
#include "mozilla/dom/MozCellBroadcastBinding.h"
#include "mozilla/dom/MozCellBroadcastEvent.h"
#include "nsServiceManagerUtils.h"
// Service instantiation
#include "ipc/CellBroadcastIPCService.h"
#if defined(MOZ_WIDGET_GONK) && defined(MOZ_B2G_RIL)
#include "nsIGonkCellBroadcastService.h"
#endif
#include "nsXULAppAPI.h" // For XRE_GetProcessType()
using namespace mozilla::dom;
using mozilla::ErrorResult;
/**
* CellBroadcast::Listener Implementation.
*/
class CellBroadcast::Listener final : public nsICellBroadcastListener
{
private:
CellBroadcast* mCellBroadcast;
public:
NS_DECL_ISUPPORTS
NS_FORWARD_SAFE_NSICELLBROADCASTLISTENER(mCellBroadcast)
explicit Listener(CellBroadcast* aCellBroadcast)
: mCellBroadcast(aCellBroadcast)
{
MOZ_ASSERT(mCellBroadcast);
}
void Disconnect()
{
MOZ_ASSERT(mCellBroadcast);
mCellBroadcast = nullptr;
}
private:
~Listener()
{
MOZ_ASSERT(!mCellBroadcast);
}
};
NS_IMPL_ISUPPORTS(CellBroadcast::Listener, nsICellBroadcastListener)
/**
* CellBroadcast Implementation.
*/
// static
already_AddRefed<CellBroadcast>
CellBroadcast::Create(nsPIDOMWindowInner* aWindow, ErrorResult& aRv)
{
MOZ_ASSERT(aWindow);
MOZ_ASSERT(aWindow->IsInnerWindow());
nsCOMPtr<nsICellBroadcastService> service =
do_GetService(CELLBROADCAST_SERVICE_CONTRACTID);
if (!service) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
RefPtr<CellBroadcast> cb = new CellBroadcast(aWindow, service);
return cb.forget();
}
CellBroadcast::CellBroadcast(nsPIDOMWindowInner* aWindow,
nsICellBroadcastService* aService)
: DOMEventTargetHelper(aWindow)
{
mListener = new Listener(this);
DebugOnly<nsresult> rv = aService->RegisterListener(mListener);
NS_WARN_IF_FALSE(NS_SUCCEEDED(rv),
"Failed registering Cell Broadcast callback");
}
CellBroadcast::~CellBroadcast()
{
MOZ_ASSERT(mListener);
mListener->Disconnect();
nsCOMPtr<nsICellBroadcastService> service =
do_GetService(CELLBROADCAST_SERVICE_CONTRACTID);
if (service) {
service->UnregisterListener(mListener);
}
mListener = nullptr;
}
NS_IMPL_ISUPPORTS_INHERITED0(CellBroadcast, DOMEventTargetHelper)
JSObject*
CellBroadcast::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return MozCellBroadcastBinding::Wrap(aCx, this, aGivenProto);
}
// Forwarded nsICellBroadcastListener methods
NS_IMETHODIMP
CellBroadcast::NotifyMessageReceived(uint32_t aServiceId,
uint32_t aGsmGeographicalScope,
uint16_t aMessageCode,
uint16_t aMessageId,
const nsAString& aLanguage,
const nsAString& aBody,
uint32_t aMessageClass,
DOMTimeStamp aTimestamp,
uint32_t aCdmaServiceCategory,
bool aHasEtwsInfo,
uint32_t aEtwsWarningType,
bool aEtwsEmergencyUserAlert,
bool aEtwsPopup) {
MozCellBroadcastEventInit init;
init.mBubbles = true;
init.mCancelable = false;
init.mMessage = new CellBroadcastMessage(GetOwner(),
aServiceId,
aGsmGeographicalScope,
aMessageCode,
aMessageId,
aLanguage,
aBody,
aMessageClass,
aTimestamp,
aCdmaServiceCategory,
aHasEtwsInfo,
aEtwsWarningType,
aEtwsEmergencyUserAlert,
aEtwsPopup);
RefPtr<MozCellBroadcastEvent> event =
MozCellBroadcastEvent::Constructor(this, NS_LITERAL_STRING("received"), init);
return DispatchTrustedEvent(event);
}
already_AddRefed<nsICellBroadcastService>
NS_CreateCellBroadcastService()
{
nsCOMPtr<nsICellBroadcastService> service;
if (XRE_IsContentProcess()) {
service = new mozilla::dom::cellbroadcast::CellBroadcastIPCService();
#if defined(MOZ_WIDGET_GONK) && defined(MOZ_B2G_RIL)
} else {
service = do_GetService(GONK_CELLBROADCAST_SERVICE_CONTRACTID);
#endif
}
return service.forget();
}