/* static */ already_AddRefed<Promise>
Promise::Constructor(const GlobalObject& aGlobal, JSContext* aCx,
PromiseInit& aInit, ErrorResult& aRv)
{
MOZ_ASSERT(PrefEnabled());
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aGlobal.Get());
if (!window) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
nsRefPtr<Promise> promise = new Promise(window);
aInit.Call(promise, *promise->mResolver, aRv,
CallbackObject::eRethrowExceptions);
aRv.WouldReportJSException();
if (aRv.IsJSException()) {
Optional<JS::Handle<JS::Value> > value(aCx);
aRv.StealJSException(aCx, &value.Value());
Maybe<JSAutoCompartment> ac;
EnterCompartment(ac, aCx, value);
promise->mResolver->Reject(aCx, value);
}
return promise.forget();
}
// static
bool TouchEvent::LegacyAPIEnabled(nsIDocShell* aDocShell,
bool aCallerIsSystem) {
return (aCallerIsSystem ||
StaticPrefs::dom_w3c_touch_events_legacy_apis_enabled() ||
(aDocShell && aDocShell->GetTouchEventsOverride() ==
nsIDocShell::TOUCHEVENTS_OVERRIDE_ENABLED)) &&
PrefEnabled(aDocShell);
}
/* static */ bool
OffscreenCanvas::PrefEnabledOnWorkerThread(JSContext* aCx, JSObject* aObj)
{
if (NS_IsMainThread()) {
return true;
}
return PrefEnabled(aCx, aObj);
}
/* static */ already_AddRefed<Promise>
Promise::Reject(const GlobalObject& aGlobal, JSContext* aCx,
JS::Handle<JS::Value> aValue, ErrorResult& aRv)
{
MOZ_ASSERT(PrefEnabled());
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aGlobal.Get());
if (!window) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
nsRefPtr<Promise> promise = new Promise(window);
Optional<JS::Handle<JS::Value> > value(aCx, aValue);
promise->mResolver->Reject(aCx, value);
return promise.forget();
}
/* static */ bool
Promise::EnabledForScope(JSContext* aCx, JSObject* /* unused */)
{
// Enable if the pref is enabled or if we're chrome or if we're a
// certified app.
if (PrefEnabled()) {
return true;
}
// Note that we have no concept of a certified app in workers.
// XXXbz well, why not?
if (!NS_IsMainThread()) {
return workers::GetWorkerPrivateFromContext(aCx)->IsChromeWorker();
}
nsIPrincipal* prin = nsContentUtils::GetSubjectPrincipal();
return nsContentUtils::IsSystemPrincipal(prin) ||
prin->GetAppStatus() == nsIPrincipal::APP_STATUS_CERTIFIED;
}
already_AddRefed<WebSocket>
WebSocket::Constructor(JSContext* aCx,
nsISupports* aGlobal,
const nsAString& aUrl,
const Sequence<nsString>& aProtocols,
ErrorResult& aRv)
{
if (!PrefEnabled()) {
aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
return nullptr;
}
nsCOMPtr<nsIScriptObjectPrincipal> scriptPrincipal = do_QueryInterface(aGlobal);
if (!scriptPrincipal) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
nsCOMPtr<nsIPrincipal> principal = scriptPrincipal->GetPrincipal();
if (!principal) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
nsCOMPtr<nsIScriptGlobalObject> sgo = do_QueryInterface(aGlobal);
if (!sgo) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
nsCOMPtr<nsPIDOMWindow> ownerWindow = do_QueryInterface(aGlobal);
if (!ownerWindow) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
nsTArray<nsString> protocolArray;
for (uint32_t index = 0, len = aProtocols.Length(); index < len; ++index) {
const nsString& protocolElement = aProtocols[index];
if (protocolElement.IsEmpty()) {
aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
return nullptr;
}
if (protocolArray.Contains(protocolElement)) {
aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
return nullptr;
}
if (protocolElement.FindChar(',') != -1) /* interferes w/list */ {
aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
return nullptr;
}
protocolArray.AppendElement(protocolElement);
}
nsRefPtr<WebSocket> webSocket = new WebSocket();
nsresult rv = webSocket->Init(aCx, principal, ownerWindow, aUrl, protocolArray);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
return nullptr;
}
return webSocket.forget();
}