gecko-dev/dom/telephony/Telephony.cpp

616 lines
16 KiB
C++

/* -*- 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 "Telephony.h"
#include "nsIURI.h"
#include "nsIDOMCallEvent.h"
#include "nsPIDOMWindow.h"
#include "nsIPermissionManager.h"
#include "GeneratedEvents.h"
#include "jsapi.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsContentUtils.h"
#include "nsCxPusher.h"
#include "nsDOMClassInfo.h"
#include "nsNetUtil.h"
#include "nsServiceManagerUtils.h"
#include "nsTArrayHelpers.h"
#include "nsThreadUtils.h"
#include "TelephonyCall.h"
#define NS_RILCONTENTHELPER_CONTRACTID "@mozilla.org/ril/content-helper;1"
USING_TELEPHONY_NAMESPACE
using namespace mozilla::dom;
namespace {
typedef nsAutoTArray<Telephony*, 2> TelephonyList;
TelephonyList* gTelephonyList;
} // anonymous namespace
class Telephony::Listener : public nsITelephonyListener
{
Telephony* mTelephony;
public:
NS_DECL_ISUPPORTS
NS_FORWARD_SAFE_NSITELEPHONYLISTENER(mTelephony)
Listener(Telephony* aTelephony)
: mTelephony(aTelephony)
{
MOZ_ASSERT(mTelephony);
}
void
Disconnect()
{
MOZ_ASSERT(mTelephony);
mTelephony = nullptr;
}
};
class Telephony::EnumerationAck : public nsRunnable
{
nsRefPtr<Telephony> mTelephony;
public:
EnumerationAck(Telephony* aTelephony)
: mTelephony(aTelephony)
{
MOZ_ASSERT(mTelephony);
}
NS_IMETHOD Run()
{
mTelephony->NotifyCallsChanged(nullptr);
return NS_OK;
}
};
Telephony::Telephony()
: mActiveCall(nullptr), mCallsArray(nullptr), mRooted(false),
mEnumerated(false)
{
if (!gTelephonyList) {
gTelephonyList = new TelephonyList();
}
gTelephonyList->AppendElement(this);
}
Telephony::~Telephony()
{
if (mListener) {
mListener->Disconnect();
if (mProvider) {
mProvider->UnregisterTelephonyMsg(mListener);
}
}
if (mRooted) {
mCallsArray = nullptr;
NS_DROP_JS_OBJECTS(this, Telephony);
}
NS_ASSERTION(gTelephonyList, "This should never be null!");
NS_ASSERTION(gTelephonyList->Contains(this), "Should be in the list!");
if (gTelephonyList->Length() == 1) {
delete gTelephonyList;
gTelephonyList = nullptr;
}
else {
gTelephonyList->RemoveElement(this);
}
}
// static
already_AddRefed<Telephony>
Telephony::Create(nsPIDOMWindow* aOwner, ErrorResult& aRv)
{
NS_ASSERTION(aOwner, "Null owner!");
nsCOMPtr<nsITelephonyProvider> ril =
do_GetService(NS_RILCONTENTHELPER_CONTRACTID);
if (!ril) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
nsCOMPtr<nsIScriptGlobalObject> sgo = do_QueryInterface(aOwner);
if (!sgo) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
nsCOMPtr<nsIScriptContext> scriptContext = sgo->GetContext();
if (!scriptContext) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
nsRefPtr<Telephony> telephony = new Telephony();
telephony->BindToOwner(aOwner);
telephony->mProvider = ril;
telephony->mListener = new Listener(telephony);
nsresult rv = ril->EnumerateCalls(telephony->mListener);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
return nullptr;
}
rv = ril->RegisterTelephonyMsg(telephony->mListener);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
return nullptr;
}
return telephony.forget();
}
already_AddRefed<TelephonyCall>
Telephony::CreateNewDialingCall(const nsAString& aNumber)
{
nsRefPtr<TelephonyCall> call =
TelephonyCall::Create(this, aNumber,
nsITelephonyProvider::CALL_STATE_DIALING);
NS_ASSERTION(call, "This should never fail!");
NS_ASSERTION(mCalls.Contains(call), "Should have auto-added new call!");
return call.forget();
}
void
Telephony::NoteDialedCallFromOtherInstance(const nsAString& aNumber)
{
// We don't need to hang on to this call object, it is held alive by mCalls.
nsRefPtr<TelephonyCall> call = CreateNewDialingCall(aNumber);
}
nsresult
Telephony::NotifyCallsChanged(TelephonyCall* aCall)
{
if (aCall) {
if (aCall->CallState() == nsITelephonyProvider::CALL_STATE_DIALING ||
aCall->CallState() == nsITelephonyProvider::CALL_STATE_ALERTING ||
aCall->CallState() == nsITelephonyProvider::CALL_STATE_CONNECTED) {
NS_ASSERTION(!mActiveCall, "Already have an active call!");
mActiveCall = aCall;
} else if (mActiveCall && mActiveCall->CallIndex() == aCall->CallIndex()) {
mActiveCall = nullptr;
}
}
return DispatchCallEvent(NS_LITERAL_STRING("callschanged"), aCall);
}
nsresult
Telephony::DialInternal(bool isEmergency,
const nsAString& aNumber,
nsIDOMTelephonyCall** aResult)
{
NS_ENSURE_ARG(!aNumber.IsEmpty());
for (uint32_t index = 0; index < mCalls.Length(); index++) {
const nsRefPtr<TelephonyCall>& tempCall = mCalls[index];
if (tempCall->IsOutgoing() &&
tempCall->CallState() < nsITelephonyProvider::CALL_STATE_CONNECTED) {
// One call has been dialed already and we only support one outgoing call
// at a time.
NS_WARNING("Only permitted to dial one call at a time!");
return NS_ERROR_NOT_AVAILABLE;
}
}
nsresult rv;
if (isEmergency) {
rv = mProvider->DialEmergency(aNumber);
} else {
rv = mProvider->Dial(aNumber);
}
NS_ENSURE_SUCCESS(rv, rv);
nsRefPtr<TelephonyCall> call = CreateNewDialingCall(aNumber);
// Notify other telephony objects that we just dialed.
for (uint32_t index = 0; index < gTelephonyList->Length(); index++) {
Telephony*& telephony = gTelephonyList->ElementAt(index);
if (telephony != this) {
nsRefPtr<Telephony> kungFuDeathGrip = telephony;
telephony->NoteDialedCallFromOtherInstance(aNumber);
}
}
call.forget(aResult);
return NS_OK;
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(Telephony,
nsDOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
for (uint32_t index = 0; index < tmp->mCalls.Length(); index++) {
NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "mCalls[i]");
cb.NoteXPCOMChild(tmp->mCalls[index]->ToISupports());
}
// Don't traverse mListener because it doesn't keep any reference to
// Telephony but a raw pointer instead.
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(Telephony,
nsDOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mCallsArray)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(Telephony,
nsDOMEventTargetHelper)
tmp->mCalls.Clear();
tmp->mActiveCall = nullptr;
tmp->mCallsArray = nullptr;
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(Telephony)
NS_INTERFACE_MAP_ENTRY(nsIDOMTelephony)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(Telephony)
NS_INTERFACE_MAP_END_INHERITING(nsDOMEventTargetHelper)
NS_IMPL_ADDREF_INHERITED(Telephony, nsDOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(Telephony, nsDOMEventTargetHelper)
DOMCI_DATA(Telephony, Telephony)
NS_IMPL_ISUPPORTS1(Telephony::Listener, nsITelephonyListener)
// nsIDOMTelephony
NS_IMETHODIMP
Telephony::Dial(const nsAString& aNumber, nsIDOMTelephonyCall** aResult)
{
DialInternal(false, aNumber, aResult);
return NS_OK;
}
NS_IMETHODIMP
Telephony::DialEmergency(const nsAString& aNumber, nsIDOMTelephonyCall** aResult)
{
DialInternal(true, aNumber, aResult);
return NS_OK;
}
NS_IMETHODIMP
Telephony::GetMuted(bool* aMuted)
{
nsresult rv = mProvider->GetMicrophoneMuted(aMuted);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
Telephony::SetMuted(bool aMuted)
{
nsresult rv = mProvider->SetMicrophoneMuted(aMuted);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
Telephony::GetSpeakerEnabled(bool* aSpeakerEnabled)
{
nsresult rv = mProvider->GetSpeakerEnabled(aSpeakerEnabled);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
Telephony::SetSpeakerEnabled(bool aSpeakerEnabled)
{
nsresult rv = mProvider->SetSpeakerEnabled(aSpeakerEnabled);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
Telephony::GetActive(nsIDOMTelephonyCall** aActive)
{
nsCOMPtr<nsIDOMTelephonyCall> activeCall = mActiveCall;
activeCall.forget(aActive);
return NS_OK;
}
NS_IMETHODIMP
Telephony::GetCalls(JS::Value* aCalls)
{
JSObject* calls = mCallsArray;
if (!calls) {
nsresult rv;
nsIScriptContext* sc = GetContextForEventHandlers(&rv);
NS_ENSURE_SUCCESS(rv, rv);
AutoPushJSContext cx(sc ? sc->GetNativeContext() : nullptr);
if (sc) {
rv = nsTArrayToJSArray(cx, mCalls, &calls);
NS_ENSURE_SUCCESS(rv, rv);
if (!mRooted) {
NS_HOLD_JS_OBJECTS(this, Telephony);
mRooted = true;
}
mCallsArray = calls;
} else {
NS_ENSURE_SUCCESS(rv, rv);
}
}
aCalls->setObject(*calls);
return NS_OK;
}
NS_IMETHODIMP
Telephony::StartTone(const nsAString& aDTMFChar)
{
if (aDTMFChar.IsEmpty()) {
NS_WARNING("Empty tone string will be ignored");
return NS_OK;
}
if (aDTMFChar.Length() > 1) {
return NS_ERROR_INVALID_ARG;
}
nsresult rv = mProvider->StartTone(aDTMFChar);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
Telephony::StopTone()
{
nsresult rv = mProvider->StopTone();
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMPL_EVENT_HANDLER(Telephony, incoming)
NS_IMPL_EVENT_HANDLER(Telephony, callschanged)
// EventTarget
void
Telephony::EventListenerAdded(nsIAtom* aType)
{
if (aType == nsGkAtoms::oncallschanged) {
// Fire oncallschanged on the next tick if the calls array is ready.
EnqueueEnumerationAck();
}
}
// nsITelephonyListener
NS_IMETHODIMP
Telephony::CallStateChanged(uint32_t aCallIndex, uint16_t aCallState,
const nsAString& aNumber, bool aIsActive,
bool aIsOutgoing, bool aIsEmergency)
{
NS_ASSERTION(aCallIndex != kOutgoingPlaceholderCallIndex,
"This should never happen!");
nsRefPtr<TelephonyCall> modifiedCall;
nsRefPtr<TelephonyCall> outgoingCall;
for (uint32_t index = 0; index < mCalls.Length(); index++) {
nsRefPtr<TelephonyCall>& tempCall = mCalls[index];
if (tempCall->CallIndex() == kOutgoingPlaceholderCallIndex) {
NS_ASSERTION(!outgoingCall, "More than one outgoing call not supported!");
NS_ASSERTION(tempCall->CallState() ==
nsITelephonyProvider::CALL_STATE_DIALING,
"Something really wrong here!");
// Stash this for later, we may need it if aCallIndex doesn't match one of
// our other calls.
outgoingCall = tempCall;
} else if (tempCall->CallIndex() == aCallIndex) {
// We already know about this call so just update its state.
modifiedCall = tempCall;
outgoingCall = nullptr;
break;
}
}
// If nothing matched above and the call state isn't incoming but we do have
// an outgoing call then we must be seeing a status update for our outgoing
// call.
if (!modifiedCall &&
aCallState != nsITelephonyProvider::CALL_STATE_INCOMING &&
outgoingCall) {
outgoingCall->UpdateCallIndex(aCallIndex);
outgoingCall->UpdateEmergency(aIsEmergency);
modifiedCall.swap(outgoingCall);
}
if (modifiedCall) {
// See if this should replace our current active call.
if (aIsActive) {
mActiveCall = modifiedCall;
} else if (mActiveCall && mActiveCall->CallIndex() == aCallIndex) {
mActiveCall = nullptr;
}
// Change state.
modifiedCall->ChangeState(aCallState);
return NS_OK;
}
// Didn't know anything about this call before now.
if (aCallState == nsITelephonyProvider::CALL_STATE_DISCONNECTED) {
// Do nothing since we didn't know anything about it before now and it's
// been ended already.
return NS_OK;
}
nsRefPtr<TelephonyCall> call =
TelephonyCall::Create(this, aNumber, aCallState, aCallIndex, aIsEmergency);
NS_ASSERTION(call, "This should never fail!");
NS_ASSERTION(mCalls.Contains(call), "Should have auto-added new call!");
if (aCallState == nsITelephonyProvider::CALL_STATE_INCOMING) {
nsresult rv = DispatchCallEvent(NS_LITERAL_STRING("incoming"), call);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
NS_IMETHODIMP
Telephony::EnumerateCallStateComplete()
{
MOZ_ASSERT(!mEnumerated);
mEnumerated = true;
if (NS_FAILED(NotifyCallsChanged(nullptr))) {
NS_WARNING("Failed to notify calls changed!");
}
return NS_OK;
}
NS_IMETHODIMP
Telephony::EnumerateCallState(uint32_t aCallIndex, uint16_t aCallState,
const nsAString& aNumber, bool aIsActive,
bool aIsOutgoing, bool aIsEmergency,
bool* aContinue)
{
// Make sure we don't somehow add duplicates.
for (uint32_t index = 0; index < mCalls.Length(); index++) {
nsRefPtr<TelephonyCall>& tempCall = mCalls[index];
if (tempCall->CallIndex() == aCallIndex) {
// We have the call already. Skip it.
*aContinue = true;
return NS_OK;
}
}
nsRefPtr<TelephonyCall> call =
TelephonyCall::Create(this, aNumber, aCallState, aCallIndex, aIsEmergency);
NS_ASSERTION(call, "This should never fail!");
NS_ASSERTION(mCalls.Contains(call), "Should have auto-added new call!");
*aContinue = true;
return NS_OK;
}
NS_IMETHODIMP
Telephony::NotifyError(int32_t aCallIndex,
const nsAString& aError)
{
nsRefPtr<TelephonyCall> callToNotify;
if (!mCalls.IsEmpty()) {
// The connection is not established yet. Get the latest call object.
if (aCallIndex == -1) {
callToNotify = mCalls[mCalls.Length() - 1];
} else {
// The connection has been established. Get the failed call.
for (uint32_t index = 0; index < mCalls.Length(); index++) {
nsRefPtr<TelephonyCall>& call = mCalls[index];
if (call->CallIndex() == aCallIndex) {
callToNotify = call;
break;
}
}
}
}
if (!callToNotify) {
NS_ERROR("Don't call me with a bad call index!");
return NS_ERROR_UNEXPECTED;
}
if (mActiveCall && mActiveCall->CallIndex() == callToNotify->CallIndex()) {
mActiveCall = nullptr;
}
// Set the call state to 'disconnected' and remove it from the calls list.
callToNotify->NotifyError(aError);
return NS_OK;
}
nsresult
Telephony::DispatchCallEvent(const nsAString& aType,
nsIDOMTelephonyCall* aCall)
{
// We will notify enumeration being completed by firing oncallschanged.
// We only ever have a null call with that event type.
MOZ_ASSERT(aCall || aType.EqualsLiteral("callschanged"));
nsCOMPtr<nsIDOMEvent> event;
NS_NewDOMCallEvent(getter_AddRefs(event), this, nullptr, nullptr);
NS_ASSERTION(event, "This should never fail!");
nsCOMPtr<nsIDOMCallEvent> callEvent = do_QueryInterface(event);
MOZ_ASSERT(callEvent);
nsresult rv = callEvent->InitCallEvent(aType, false, false, aCall);
NS_ENSURE_SUCCESS(rv, rv);
return DispatchTrustedEvent(callEvent);
}
void
Telephony::EnqueueEnumerationAck()
{
if (!mEnumerated) {
return;
}
nsCOMPtr<nsIRunnable> task = new EnumerationAck(this);
if (NS_FAILED(NS_DispatchToCurrentThread(task))) {
NS_WARNING("Failed to dispatch to current thread!");
}
}
/* static */
bool
Telephony::CheckPermission(nsPIDOMWindow* aWindow)
{
MOZ_ASSERT(aWindow && aWindow->IsInnerWindow());
nsCOMPtr<nsIPermissionManager> permMgr =
do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
NS_ENSURE_TRUE(permMgr, false);
uint32_t permission;
nsresult rv =
permMgr->TestPermissionFromWindow(aWindow, "telephony", &permission);
NS_ENSURE_SUCCESS(rv, false);
if (permission != nsIPermissionManager::ALLOW_ACTION) {
return false;
}
return true;
}