/* static */ already_AddRefed<dom::Promise>
MP4Decoder::IsVideoAccelerated(layers::LayersBackend aBackend, nsIGlobalObject* aParent)
{
MOZ_ASSERT(NS_IsMainThread());
ErrorResult rv;
RefPtr<dom::Promise> promise;
promise = dom::Promise::Create(aParent, rv);
if (rv.Failed()) {
rv.SuppressException();
return nullptr;
}
RefPtr<TaskQueue> taskQueue =
new TaskQueue(GetMediaThreadPool(MediaThreadType::PLATFORM_DECODER));
VideoInfo config;
RefPtr<MediaDataDecoder> decoder(CreateTestH264Decoder(aBackend, config, taskQueue));
if (!decoder) {
taskQueue->BeginShutdown();
taskQueue->AwaitShutdownAndIdle();
promise->MaybeResolve(NS_LITERAL_STRING("No; Failed to create H264 decoder"));
return promise.forget();
}
decoder->Init()
->Then(AbstractThread::MainThread(), __func__,
[promise, decoder, taskQueue] (TrackInfo::TrackType aTrack) {
nsCString failureReason;
bool ok = decoder->IsHardwareAccelerated(failureReason);
nsAutoString result;
if (ok) {
result.AssignLiteral("Yes");
} else {
result.AssignLiteral("No");
}
if (failureReason.Length()) {
result.AppendLiteral("; ");
AppendUTF8toUTF16(failureReason, result);
}
decoder->Shutdown();
taskQueue->BeginShutdown();
taskQueue->AwaitShutdownAndIdle();
promise->MaybeResolve(result);
},
[promise, decoder, taskQueue] (MediaDataDecoder::DecoderFailureReason aResult) {
decoder->Shutdown();
taskQueue->BeginShutdown();
taskQueue->AwaitShutdownAndIdle();
promise->MaybeResolve(NS_LITERAL_STRING("No; Failed to initialize H264 decoder"));
});
return promise.forget();
}
already_AddRefed<Promise>
PresentationRequest::GetAvailability(ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetOwner());
if (NS_WARN_IF(!global)) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
nsCOMPtr<nsIDocument> doc = GetOwner()->GetExtantDoc();
if (NS_WARN_IF(!doc)) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
if (doc->GetSandboxFlags() & SANDBOXED_PRESENTATION) {
promise->MaybeReject(NS_ERROR_DOM_SECURITY_ERR);
return promise.forget();
}
promise->MaybeResolve(mAvailability);
return promise.forget();
}
already_AddRefed<Promise>
BluetoothGattDescriptor::ReadValue(ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetParentObject());
if (!global) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
RefPtr<Promise> promise = Promise::Create(global, aRv);
NS_ENSURE_TRUE(!aRv.Failed(), nullptr);
BluetoothUuid appUuid;
BT_ENSURE_TRUE_REJECT(NS_SUCCEEDED(StringToUuid(
mCharacteristic->Service()->GetAppUuid(), appUuid)),
promise,
NS_ERROR_DOM_OPERATION_ERR);
if (mAttRole == ATT_SERVER_ROLE) {
promise->MaybeResolve(mValue);
return promise.forget();
}
BluetoothService* bs = BluetoothService::Get();
BT_ENSURE_TRUE_REJECT(bs, promise, NS_ERROR_NOT_AVAILABLE);
bs->GattClientReadDescriptorValueInternal(
appUuid,
mCharacteristic->Service()->GetServiceId(),
mCharacteristic->GetCharacteristicId(),
mDescriptorId,
new ReadValueTask(this, promise));
return promise.forget();
}
bool
PresentationAvailability::Init(RefPtr<Promise>& aPromise)
{
nsCOMPtr<nsIPresentationService> service =
do_GetService(PRESENTATION_SERVICE_CONTRACTID);
if (NS_WARN_IF(!service)) {
return false;
}
nsresult rv = service->RegisterAvailabilityListener(this);
if (NS_WARN_IF(NS_FAILED(rv))) {
// If the user agent is unable to monitor available device,
// Resolve promise with |value| set to false.
mIsAvailable = false;
aPromise->MaybeResolve(this);
return true;
}
EnqueuePromise(aPromise);
AvailabilityCollection* collection = AvailabilityCollection::GetSingleton();
if (collection) {
collection->Add(this);
}
return true;
}
already_AddRefed<Promise>
ServiceWorkerGlobalScope::SkipWaiting(ErrorResult& aRv)
{
mWorkerPrivate->AssertIsOnWorkerThread();
MOZ_ASSERT(mWorkerPrivate->IsServiceWorker());
RefPtr<Promise> promise = Promise::Create(this, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
RefPtr<PromiseWorkerProxy> promiseProxy =
PromiseWorkerProxy::Create(mWorkerPrivate, promise);
if (!promiseProxy) {
promise->MaybeResolve(JS::UndefinedHandleValue);
return promise.forget();
}
RefPtr<WorkerScopeSkipWaitingRunnable> runnable =
new WorkerScopeSkipWaitingRunnable(promiseProxy,
NS_ConvertUTF16toUTF8(mScope));
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(runnable));
return promise.forget();
}
already_AddRefed<Promise>
PresentationReceiver::GetConnection(ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetOwner());
if (NS_WARN_IF(!global)) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
// If there's no existing connection, leave the promise pending until a
// connecting request arrives from the controlling browsing context (sender).
// http://w3c.github.io/presentation-api/#dom-presentation-getconnection
if (!mConnections.IsEmpty()) {
promise->MaybeResolve(mConnections[0]);
} else {
mPendingGetConnectionPromises.AppendElement(promise);
}
return promise.forget();
}
already_AddRefed<Promise>
BluetoothGattServer::StopAdvertising(ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetParentObject());
if (!global) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
RefPtr<Promise> promise = Promise::Create(global, aRv);
NS_ENSURE_TRUE(!aRv.Failed(), nullptr);
BT_ENSURE_TRUE_REJECT(mValid, promise, NS_ERROR_NOT_AVAILABLE);
if (mAdvertisingAppUuid.IsCleared()) {
promise->MaybeResolve(JS::UndefinedHandleValue);
return promise.forget();
}
BluetoothService* bs = BluetoothService::Get();
BT_ENSURE_TRUE_REJECT(bs, promise, NS_ERROR_NOT_AVAILABLE);
bs->StopAdvertisingInternal(mAdvertisingAppUuid,
new StopAdvertisingTask(this, promise));
return promise.forget();
}
already_AddRefed<Promise> MediaDevices::GetDisplayMedia(
const DisplayMediaStreamConstraints& aConstraints, CallerType aCallerType,
ErrorResult& aRv) {
RefPtr<Promise> p = Promise::Create(GetParentObject(), aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
RefPtr<MediaDevices> self(this);
MediaManager::Get()
->GetDisplayMedia(GetOwner(), aConstraints, aCallerType)
->Then(GetCurrentThreadSerialEventTarget(), __func__,
[this, self, p](RefPtr<DOMMediaStream>&& aStream) {
if (!GetWindowIfCurrent()) {
return; // leave promise pending after navigation.
}
p->MaybeResolve(std::move(aStream));
},
[this, self, p](RefPtr<MediaMgrError>&& error) {
nsPIDOMWindowInner* window = GetWindowIfCurrent();
if (!window) {
return; // leave promise pending after navigation.
}
p->MaybeReject(MakeRefPtr<MediaStreamError>(window, *error));
});
return p.forget();
}
already_AddRefed<Promise>
BluetoothGattCharacteristic::ReadValue(ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetParentObject());
if (!global) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
RefPtr<Promise> promise = Promise::Create(global, aRv);
NS_ENSURE_TRUE(!aRv.Failed(), nullptr);
if (mAttRole == ATT_SERVER_ROLE) {
promise->MaybeResolve(mValue);
return promise.forget();
}
BT_ENSURE_TRUE_REJECT(mProperties & GATT_CHAR_PROP_BIT_READ,
promise,
NS_ERROR_NOT_AVAILABLE);
BluetoothService* bs = BluetoothService::Get();
BT_ENSURE_TRUE_REJECT(bs, promise, NS_ERROR_NOT_AVAILABLE);
bs->GattClientReadCharacteristicValueInternal(
mService->GetAppUuid(), mService->GetServiceId(), mCharId,
new ReadValueTask(this, promise));
return promise.forget();
}
already_AddRefed<Promise>
MediaStreamTrack::ApplyConstraints(const MediaTrackConstraints& aConstraints,
ErrorResult &aRv)
{
if (MOZ_LOG_TEST(gMediaStreamTrackLog, LogLevel::Info)) {
nsString str;
aConstraints.ToJSON(str);
LOG(LogLevel::Info, ("MediaStreamTrack %p ApplyConstraints() with "
"constraints %s", this, NS_ConvertUTF16toUTF8(str).get()));
}
typedef media::Pledge<bool, MediaStreamError*> PledgeVoid;
nsPIDOMWindowInner* window = mOwningStream->GetParentObject();
nsCOMPtr<nsIGlobalObject> go = do_QueryInterface(window);
RefPtr<Promise> promise = Promise::Create(go, aRv);
// Forward constraints to the source.
//
// After GetSource().ApplyConstraints succeeds (after it's been to media-thread
// and back), and no sooner, do we set mConstraints to the newly applied values.
// Keep a reference to this, to make sure it's still here when we get back.
RefPtr<MediaStreamTrack> that = this;
RefPtr<PledgeVoid> p = GetSource().ApplyConstraints(window, aConstraints);
p->Then([this, that, promise, aConstraints](bool& aDummy) mutable {
mConstraints = aConstraints;
promise->MaybeResolve(false);
}, [promise](MediaStreamError*& reason) mutable {
promise->MaybeReject(reason);
});
return promise.forget();
}
already_AddRefed<Promise>
BluetoothGattCharacteristic::AddDescriptor(const nsAString& aDescriptorUuid,
const GattPermissions& aPermissions,
const ArrayBuffer& aValue,
ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetParentObject());
if (!global) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
RefPtr<Promise> promise = Promise::Create(global, aRv);
NS_ENSURE_TRUE(!aRv.Failed(), nullptr);
BT_ENSURE_TRUE_REJECT(mAttRole == ATT_SERVER_ROLE,
promise,
NS_ERROR_UNEXPECTED);
/* The characteristic should not be actively acting with the Bluetooth
* backend. Otherwise, descriptors cannot be added into the characteristic. */
BT_ENSURE_TRUE_REJECT(!mActive, promise, NS_ERROR_UNEXPECTED);
RefPtr<BluetoothGattDescriptor> descriptor =
new BluetoothGattDescriptor(GetParentObject(),
this,
aDescriptorUuid,
aPermissions,
aValue);
mDescriptors.AppendElement(descriptor);
promise->MaybeResolve(descriptor);
return promise.forget();
}
/* static */ already_AddRefed<Promise>
FileCreatorHelper::CreateFile(nsIGlobalObject* aGlobalObject,
nsIFile* aFile,
const ChromeFilePropertyBag& aBag,
bool aIsFromNsIFile,
ErrorResult& aRv)
{
MOZ_DIAGNOSTIC_ASSERT(NS_IsMainThread());
RefPtr<Promise> promise = Promise::Create(aGlobalObject, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
nsCOMPtr<nsPIDOMWindowInner> window = do_QueryInterface(aGlobalObject);
// Parent process
if (XRE_IsParentProcess()) {
RefPtr<File> file =
CreateFileInternal(window, aFile, aBag, aIsFromNsIFile, aRv);
if (aRv.Failed()) {
return nullptr;
}
promise->MaybeResolve(file);
return promise.forget();
}
// Content process.
ContentChild* cc = ContentChild::GetSingleton();
if (!cc) {
promise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR);
return promise.forget();
}
if (!cc->GetRemoteType().EqualsLiteral(FILE_REMOTE_TYPE) &&
!Preferences::GetBool("dom.file.createInChild", false)) {
// If this pref is not set and the request is received by the parent
// process, this child is killed for security reason.
promise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR);
return promise.forget();
}
RefPtr<FileCreatorHelper> helper = new FileCreatorHelper(promise, window);
// The request is sent to the parent process and it's kept alive by
// ContentChild.
helper->SendRequest(aFile, aBag, aIsFromNsIFile, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
return promise.forget();
}
mozilla::ipc::IPCResult
GamepadEventChannelChild::RecvReplyGamepadVibrateHaptic(const uint32_t& aPromiseID)
{
RefPtr<dom::Promise> p;
if (!mPromiseList.Get(aPromiseID, getter_AddRefs(p))) {
MOZ_CRASH("We should always have a promise.");
}
p->MaybeResolve(true);
mPromiseList.Remove(aPromiseID);
return IPC_OK();
}
already_AddRefed<Promise>
Cache::AddAll(const GlobalObject& aGlobal,
nsTArray<RefPtr<Request>>&& aRequestList, ErrorResult& aRv)
{
MOZ_ASSERT(mActor);
// If there is no work to do, then resolve immediately
if (aRequestList.IsEmpty()) {
RefPtr<Promise> promise = Promise::Create(mGlobal, aRv);
if (NS_WARN_IF(!promise)) {
return nullptr;
}
promise->MaybeResolve(JS::UndefinedHandleValue);
return promise.forget();
}
AutoTArray<RefPtr<Promise>, 256> fetchList;
fetchList.SetCapacity(aRequestList.Length());
// Begin fetching each request in parallel. For now, if an error occurs just
// abandon our previous fetch calls. In theory we could cancel them in the
// future once fetch supports it.
for (uint32_t i = 0; i < aRequestList.Length(); ++i) {
RequestOrUSVString requestOrString;
requestOrString.SetAsRequest() = aRequestList[i];
RefPtr<Promise> fetch = FetchRequest(mGlobal, requestOrString,
RequestInit(), aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
fetchList.AppendElement(Move(fetch));
}
RefPtr<Promise> promise = Promise::Create(mGlobal, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
RefPtr<FetchHandler> handler =
new FetchHandler(mActor->GetWorkerHolder(), this,
Move(aRequestList), promise);
RefPtr<Promise> fetchPromise = Promise::All(aGlobal, fetchList, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
fetchPromise->AppendNativeHandler(handler);
return promise.forget();
}
NS_IMETHODIMP
nsOSPermissionRequestBase::RequestAudioCapturePermission(JSContext* aCx,
Promise** aPromiseOut)
{
RefPtr<Promise> promiseHandle;
nsresult rv = GetPromise(aCx, promiseHandle);
if (NS_FAILED(rv)) {
return rv;
}
promiseHandle->MaybeResolve(true /* access authorized */);
promiseHandle.forget(aPromiseOut);
return NS_OK;
}
mozilla::ipc::IPCResult
VRManagerChild::RecvReplyCreateVRServiceTestController(const nsCString& aID,
const uint32_t& aPromiseID,
const uint32_t& aDeviceID)
{
RefPtr<dom::Promise> p;
if (!mPromiseList.Get(aPromiseID, getter_AddRefs(p))) {
MOZ_CRASH("We should always have a promise.");
}
p->MaybeResolve(new VRMockController(aID, aDeviceID));
mPromiseList.Remove(aPromiseID);
return IPC_OK();
}
already_AddRefed<Promise>
TVTuner::GetSources(ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetOwner());
MOZ_ASSERT(global);
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
promise->MaybeResolve(mSources);
return promise.forget();
}
bool
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
{
RefPtr<Promise> promise = mProxy->WorkerPromise();
if (NS_SUCCEEDED(mStatus)) {
if (mEndpoint.IsEmpty()) {
promise->MaybeResolve(JS::NullHandleValue);
} else {
RefPtr<PushSubscription> sub =
new PushSubscription(nullptr, mEndpoint, mScope,
Move(mRawP256dhKey), Move(mAuthSecret),
Move(mAppServerKey));
promise->MaybeResolve(sub);
}
} else if (NS_ERROR_GET_MODULE(mStatus) == NS_ERROR_MODULE_DOM_PUSH ) {
promise->MaybeReject(mStatus);
} else {
promise->MaybeReject(NS_ERROR_DOM_PUSH_ABORT_ERR);
}
mProxy->CleanUp();
return true;
}
already_AddRefed<Promise>
BluetoothGattCharacteristic::WriteValue(const ArrayBuffer& aValue,
ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetParentObject());
if (!global) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
RefPtr<Promise> promise = Promise::Create(global, aRv);
NS_ENSURE_TRUE(!aRv.Failed(), nullptr);
aValue.ComputeLengthAndData();
if (mAttRole == ATT_SERVER_ROLE) {
mValue.Clear();
mValue.AppendElements(aValue.Data(), aValue.Length());
promise->MaybeResolve(JS::UndefinedHandleValue);
return promise.forget();
}
BT_ENSURE_TRUE_REJECT(mProperties &
(GATT_CHAR_PROP_BIT_WRITE_NO_RESPONSE |
GATT_CHAR_PROP_BIT_WRITE |
GATT_CHAR_PROP_BIT_SIGNED_WRITE),
promise,
NS_ERROR_NOT_AVAILABLE);
nsTArray<uint8_t> value;
value.AppendElements(aValue.Data(), aValue.Length());
BluetoothService* bs = BluetoothService::Get();
BT_ENSURE_TRUE_REJECT(bs, promise, NS_ERROR_NOT_AVAILABLE);
BluetoothUuid appUuid;
BT_ENSURE_TRUE_REJECT(NS_SUCCEEDED(StringToUuid(mService->GetAppUuid(),
appUuid)),
promise,
NS_ERROR_DOM_OPERATION_ERR);
bs->GattClientWriteCharacteristicValueInternal(
appUuid, mService->GetServiceId(), mCharId, mWriteType, value,
new BluetoothVoidReplyRunnable(nullptr, promise));
return promise.forget();
}
bool
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
{
MOZ_ASSERT(aWorkerPrivate);
aWorkerPrivate->AssertIsOnWorkerThread();
RefPtr<Promise> promise = mProxy->WorkerPromise();
if (NS_SUCCEEDED(mStatus)) {
promise->MaybeResolve(mState);
} else {
promise->MaybeReject(aCx, JS::UndefinedHandleValue);
}
mProxy->CleanUp();
return true;
}
already_AddRefed<Promise>
PresentationReceiver::GetConnections(ErrorResult& aRv) const
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetOwner());
if (NS_WARN_IF(!global)) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
promise->MaybeResolve(mConnections);
return promise.forget();
}
mozilla::ipc::IPCResult
VRManagerChild::RecvReplyGamepadVibrateHaptic(const uint32_t& aPromiseID)
{
// VRManagerChild could be at other processes, but GamepadManager
// only exists at the content process or the same process
// in non-e10s mode.
MOZ_ASSERT(XRE_IsContentProcess() || IsSameProcess());
RefPtr<dom::Promise> p;
if (!mGamepadPromiseList.Get(aPromiseID, getter_AddRefs(p))) {
MOZ_CRASH("We should always have a promise.");
}
p->MaybeResolve(true);
mGamepadPromiseList.Remove(aPromiseID);
return IPC_OK();
}
already_AddRefed<Promise>
AudioContext::Resume(ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> parentObject = do_QueryInterface(GetParentObject());
RefPtr<Promise> promise;
promise = Promise::Create(parentObject, aRv);
if (aRv.Failed()) {
return nullptr;
}
if (mIsOffline) {
promise->MaybeReject(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
return promise.forget();
}
if (mAudioContextState == AudioContextState::Closed ||
mCloseCalled) {
promise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR);
return promise.forget();
}
if (mAudioContextState == AudioContextState::Running) {
promise->MaybeResolve(JS::UndefinedHandleValue);
return promise.forget();
}
Destination()->Resume();
nsTArray<MediaStream*> streams;
// If mSuspendCalled is false then we already resumed all our streams,
// so don't resume them again (since suspend(); resume(); resume(); should
// be OK). But we still need to do ApplyAudioContextOperation
// to ensure our new promise is resolved.
if (mSuspendCalled) {
streams = GetAllStreams();
}
mPromiseGripArray.AppendElement(promise);
Graph()->ApplyAudioContextOperation(DestinationStream()->AsAudioNodeStream(),
streams,
AudioContextOperation::Resume, promise);
mSuspendCalled = false;
return promise.forget();
}
already_AddRefed<Promise>
VRDisplay::RequestPresent(const nsTArray<VRLayer>& aLayers,
CallerType aCallerType,
ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetParentObject());
if (!global) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
RefPtr<Promise> promise = Promise::Create(global, aRv);
NS_ENSURE_TRUE(!aRv.Failed(), nullptr);
bool isChromePresentation = aCallerType == CallerType::System;
uint32_t presentationGroup = isChromePresentation ? gfx::kVRGroupChrome : gfx::kVRGroupContent;
if (!EventStateManager::IsHandlingUserInput() &&
!isChromePresentation &&
!IsHandlingVRNavigationEvent() &&
gfxPrefs::VRRequireGesture()) {
// The WebVR API states that if called outside of a user gesture, the
// promise must be rejected. We allow VR presentations to start within
// trusted events such as vrdisplayactivate, which triggers in response to
// HMD proximity sensors and when navigating within a VR presentation.
// This user gesture requirement is not enforced for chrome/system code.
promise->MaybeRejectWithUndefined();
} else if (!IsPresenting() && IsAnyPresenting(presentationGroup)) {
// Only one presentation allowed per VRDisplay on a
// first-come-first-serve basis.
// If this Javascript context is presenting, then we can replace our
// presentation with a new one containing new layers but we should never
// replace the presentation of another context.
// Simultaneous presentations in other groups are allowed in separate
// Javascript contexts to enable browser UI from chrome/system contexts.
// Eventually, this restriction will be loosened to enable multitasking
// use cases.
promise->MaybeRejectWithUndefined();
} else {
mPresentation = mClient->BeginPresentation(aLayers, presentationGroup);
mFrameInfo.Clear();
promise->MaybeResolve(JS::UndefinedHandleValue);
}
return promise.forget();
}
void JSWindowActor::ReceiveMessageOrQuery(
JSContext* aCx, const JSWindowActorMessageMeta& aMetadata,
JS::Handle<JS::Value> aData, ErrorResult& aRv) {
// The argument which we want to pass to IPC.
RootedDictionary<ReceiveMessageArgument> argument(aCx);
argument.mObjects = JS_NewPlainObject(aCx);
argument.mTarget = this;
argument.mName = aMetadata.messageName();
argument.mData = aData;
argument.mJson = aData;
argument.mSync = false;
JS::Rooted<JSObject*> self(aCx, GetWrapper());
JS::Rooted<JSObject*> global(aCx, JS::GetNonCCWObjectGlobal(self));
// We only need to create a promise if we're dealing with a query here. It
// will be resolved or rejected once the listener has been called. Our
// listener on this promise will then send the reply.
RefPtr<Promise> promise;
if (aMetadata.kind() == JSWindowActorMessageKind::Query) {
promise = Promise::Create(xpc::NativeGlobal(global), aRv);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
RefPtr<QueryHandler> handler = new QueryHandler(this, aMetadata);
promise->AppendNativeHandler(handler);
}
// Invoke the actual callback.
JS::Rooted<JS::Value> retval(aCx);
RefPtr<MessageListener> messageListener =
new MessageListener(self, global, nullptr, nullptr);
messageListener->ReceiveMessage(argument, &retval, aRv,
"JSWindowActor receive message");
// If we have a promise, resolve or reject it respectively.
if (promise) {
if (aRv.Failed()) {
promise->MaybeReject(aRv);
} else {
promise->MaybeResolve(aCx, retval);
}
}
}
mozilla::ipc::IPCResult
VRManagerChild::RecvReplyCreateVRServiceTestDisplay(const nsCString& aID,
const uint32_t& aPromiseID,
const uint32_t& aDeviceID)
{
RefPtr<dom::Promise> p;
if (!mPromiseList.Get(aPromiseID, getter_AddRefs(p))) {
MOZ_CRASH("We should always have a promise.");
}
// We only allow one VRMockDisplay in VR tests.
if (!mVRMockDisplay) {
mVRMockDisplay = new VRMockDisplay(aID, aDeviceID);
}
p->MaybeResolve(mVRMockDisplay);
mPromiseList.Remove(aPromiseID);
return IPC_OK();
}
already_AddRefed<Promise>
AudioContext::Close(ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> parentObject = do_QueryInterface(GetParentObject());
RefPtr<Promise> promise;
promise = Promise::Create(parentObject, aRv);
if (aRv.Failed()) {
return nullptr;
}
if (mIsOffline) {
promise->MaybeReject(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
return promise.forget();
}
if (mAudioContextState == AudioContextState::Closed) {
promise->MaybeResolve(NS_ERROR_DOM_INVALID_STATE_ERR);
return promise.forget();
}
if (Destination()) {
Destination()->DestroyAudioChannelAgent();
}
mPromiseGripArray.AppendElement(promise);
// This can be called when freeing a document, and the streams are dead at
// this point, so we need extra null-checks.
MediaStream* ds = DestinationStream();
if (ds) {
nsTArray<MediaStream*> streams;
// If mSuspendCalled or mCloseCalled are true then we already suspended
// all our streams, so don't suspend them again. But we still need to do
// ApplyAudioContextOperation to ensure our new promise is resolved.
if (!mSuspendCalled && !mCloseCalled) {
streams = GetAllStreams();
}
Graph()->ApplyAudioContextOperation(ds->AsAudioNodeStream(), streams,
AudioContextOperation::Close, promise);
}
mCloseCalled = true;
return promise.forget();
}
already_AddRefed<Promise>
InputPortManager::GetInputPorts(ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetParentObject());
MOZ_ASSERT(global);
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
if (mIsReady) {
promise->MaybeResolve(mInputPorts);
} else {
mPendingGetInputPortsPromises.AppendElement(promise);
}
return promise.forget();
}
bool
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
{
MOZ_ASSERT(aWorkerPrivate);
aWorkerPrivate->AssertIsOnWorkerThread();
RefPtr<Promise> promise = mResolver->mPromiseProxy->WorkerPromise();
if (mInternalResponse->Type() != ResponseType::Error) {
RefPtr<nsIGlobalObject> global = aWorkerPrivate->GlobalScope();
RefPtr<Response> response = new Response(global, mInternalResponse);
promise->MaybeResolve(response);
} else {
ErrorResult result;
result.ThrowTypeError<MSG_FETCH_FAILED>();
promise->MaybeReject(result);
}
return true;
}
already_AddRefed<Promise>
TVManager::GetTuners(ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetOwner());
MOZ_ASSERT(global);
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
// Keep track of the promise when the manager hasn't been ready yet.
if (mIsReady) {
promise->MaybeResolve(mTuners);
} else {
mPendingGetTunersPromises.AppendElement(promise);
}
return promise.forget();
}
