void PresentationAvailability::updateListening()
{
WebPresentationClient* client = presentationClient(executionContext());
if (!client)
return;
if (m_state == State::Active && (toDocument(executionContext())->pageVisibilityState() == PageVisibilityStateVisible))
client->startListening(this);
else
client->stopListening(this);
}
ScriptPromise PresentationRequest::getAvailability(ScriptState* scriptState)
{
ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
ScriptPromise promise = resolver->promise();
WebPresentationClient* client = presentationClient(getExecutionContext());
if (!client) {
resolver->reject(DOMException::create(InvalidStateError, "The object is no longer associated to a frame."));
return promise;
}
client->getAvailability(m_url.getString(), new PresentationAvailabilityCallbacks(resolver, m_url));
return promise;
}
ScriptPromise PresentationRequest::reconnect(ScriptState* scriptState, const String& id)
{
ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
ScriptPromise promise = resolver->promise();
WebPresentationClient* client = presentationClient(getExecutionContext());
if (!client) {
resolver->reject(DOMException::create(InvalidStateError, "The PresentationRequest is no longer associated to a frame."));
return promise;
}
client->joinSession(m_url.getString(), id, new PresentationConnectionCallbacks(resolver, this));
return promise;
}
ScriptPromise PresentationRequest::start(ScriptState* scriptState)
{
ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
ScriptPromise promise = resolver->promise();
Settings* contextSettings = settings(getExecutionContext());
bool isUserGestureRequired = !contextSettings || contextSettings->presentationRequiresUserGesture();
if (isUserGestureRequired && !UserGestureIndicator::utilizeUserGesture()) {
resolver->reject(DOMException::create(InvalidAccessError, "PresentationRequest::start() requires user gesture."));
return promise;
}
WebPresentationClient* client = presentationClient(getExecutionContext());
if (!client) {
resolver->reject(DOMException::create(InvalidStateError, "The PresentationRequest is no longer associated to a frame."));
return promise;
}
client->startSession(m_url.getString(), new PresentationConnectionCallbacks(resolver, this));
return promise;
}
