void
BluetoothPairingListener::TryListeningToBluetoothSignal()
{
if (mHasListenedToSignal) {
// We've handled prior pending pairing requests
return;
}
// Listen to bluetooth signal only if all pairing event handlers have been
// attached. All pending pairing requests queued in BluetoothService would
// be fired when pairing listener starts listening to bluetooth signal.
if (!HasListenersFor(nsGkAtoms::ondisplaypasskeyreq) ||
!HasListenersFor(nsGkAtoms::onenterpincodereq) ||
!HasListenersFor(nsGkAtoms::onpairingconfirmationreq) ||
!HasListenersFor(nsGkAtoms::onpairingconsentreq)) {
BT_LOGR("Pairing listener is not ready to handle pairing requests!");
return;
}
// Start listening to bluetooth signal to handle pairing requests
BluetoothService* bs = BluetoothService::Get();
NS_ENSURE_TRUE_VOID(bs);
bs->RegisterBluetoothSignalHandler(NS_LITERAL_STRING(KEY_PAIRING_LISTENER),
this);
mHasListenedToSignal = true;
}
NS_IMETHOD Run() override
{
auto engine =
static_cast<ScriptProcessorNodeEngine*>(mStream->Engine());
AudioChunk output;
output.SetNull(engine->mBufferSize);
{
auto node = static_cast<ScriptProcessorNode*>
(engine->NodeMainThread());
if (!node) {
return NS_OK;
}
if (node->HasListenersFor(nsGkAtoms::onaudioprocess)) {
DispatchAudioProcessEvent(node, &output);
}
// The node may have been destroyed during event dispatch.
}
// Append it to our output buffer queue
engine->GetSharedBuffers()->FinishProducingOutputBuffer(output);
return NS_OK;
}
void
BroadcastChannel::UpdateMustKeepAlive()
{
bool toKeepAlive = HasListenersFor(NS_LITERAL_STRING("message"));
if (toKeepAlive == mIsKeptAlive) {
return;
}
mIsKeptAlive = toKeepAlive;
if (toKeepAlive) {
AddRef();
} else {
Release();
}
}
bool
EventListenerManager::HasListenersFor(const nsAString& aEventName)
{
if (mIsMainThreadELM) {
nsCOMPtr<nsIAtom> atom = do_GetAtom(NS_LITERAL_STRING("on") + aEventName);
return HasListenersFor(atom);
}
uint32_t count = mListeners.Length();
for (uint32_t i = 0; i < count; ++i) {
Listener* listener = &mListeners.ElementAt(i);
if (listener->mTypeString == aEventName) {
return true;
}
}
return false;
}
void
ScriptProcessorNode::UpdateConnectedStatus()
{
bool isConnected = mHasPhantomInput ||
!(OutputNodes().IsEmpty() && OutputParams().IsEmpty()
&& InputNodes().IsEmpty());
// Events are queued even when there is no listener because a listener
// may be added while events are in the queue.
SendInt32ParameterToStream(ScriptProcessorNodeEngine::IS_CONNECTED,
isConnected);
if (isConnected && HasListenersFor(nsGkAtoms::onaudioprocess)) {
MarkActive();
} else {
MarkInactive();
}
}
bool
MediaQueryList::HasListeners()
{
return HasListenersFor(ONCHANGE_STRING);
}
bool
EventListenerManager::HasListenersFor(const nsAString& aEventName)
{
nsCOMPtr<nsIAtom> atom = do_GetAtom(NS_LITERAL_STRING("on") + aEventName);
return HasListenersFor(atom);
}