Beispiel #1
0
void
Promise::Then(JSContext* aCx,
              // aCalleeGlobal may not be in the compartment of aCx, when called over
              // Xrays.
              JS::Handle<JSObject*> aCalleeGlobal,
              AnyCallback* aResolveCallback, AnyCallback* aRejectCallback,
              JS::MutableHandle<JS::Value> aRetval,
              ErrorResult& aRv)
{
  NS_ASSERT_OWNINGTHREAD(Promise);

  // Let's hope this does the right thing with Xrays...  Ensure everything is
  // just in the caller compartment; that ought to do the trick.  In theory we
  // should consider aCalleeGlobal, but in practice our only caller is
  // DOMRequest::Then, which is not working with a Promise subclass, so things
  // should be OK.
  JS::Rooted<JSObject*> promise(aCx, PromiseObj());
  if (!JS_WrapObject(aCx, &promise)) {
    aRv.NoteJSContextException(aCx);
    return;
  }

  JS::Rooted<JSObject*> resolveCallback(aCx);
  if (aResolveCallback) {
    resolveCallback = aResolveCallback->CallbackOrNull();
    if (!JS_WrapObject(aCx, &resolveCallback)) {
      aRv.NoteJSContextException(aCx);
      return;
    }
  }

  JS::Rooted<JSObject*> rejectCallback(aCx);
  if (aRejectCallback) {
    rejectCallback = aRejectCallback->CallbackOrNull();
    if (!JS_WrapObject(aCx, &rejectCallback)) {
      aRv.NoteJSContextException(aCx);
      return;
    }
  }

  JS::Rooted<JSObject*> retval(aCx);
  retval = JS::CallOriginalPromiseThen(aCx, promise, resolveCallback,
                                       rejectCallback);
  if (!retval) {
    aRv.NoteJSContextException(aCx);
    return;
  }

  aRetval.setObject(*retval);
}
Beispiel #2
0
void
WorkerDebuggerGlobalScope::CreateSandbox(JSContext* aCx, const nsAString& aName,
                                         JS::Handle<JSObject*> aPrototype,
                                         JS::MutableHandle<JSObject*> aResult,
                                         ErrorResult& aRv)
{
  mWorkerPrivate->AssertIsOnWorkerThread();

  aResult.set(nullptr);

  JS::Rooted<JS::Value> protoVal(aCx);
  protoVal.setObjectOrNull(aPrototype);
  JS::Rooted<JSObject*> sandbox(aCx,
    SimpleGlobalObject::Create(SimpleGlobalObject::GlobalType::WorkerDebuggerSandbox,
                               protoVal));

  if (!sandbox) {
    aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
    return;
  }

  if (!JS_WrapObject(aCx, &sandbox)) {
    aRv.NoteJSContextException(aCx);
    return;
  }

  aResult.set(sandbox);
}
void BrowsingContext::GetOpener(JSContext* aCx,
                                JS::MutableHandle<JS::Value> aOpener,
                                ErrorResult& aError) const {
  RefPtr<BrowsingContext> opener = GetOpener();
  if (!opener) {
    aOpener.setNull();
    return;
  }

  if (!ToJSValue(aCx, WindowProxyHolder(opener), aOpener)) {
    aError.NoteJSContextException(aCx);
  }
}
Beispiel #4
0
void
VREyeParameters::GetOffset(JSContext* aCx, JS::MutableHandle<JSObject*> aRetval, ErrorResult& aRv)
{
  if (!mOffset) {
    // Lazily create the Float32Array
    mOffset = dom::Float32Array::Create(aCx, this, 3, mEyeTranslation.components);
    if (!mOffset) {
      aRv.NoteJSContextException(aCx);
      return;
    }
  }
  aRetval.set(mOffset);
}
Beispiel #5
0
// static
already_AddRefed<Promise>
Promise::Reject(nsIGlobalObject* aGlobal, JSContext* aCx,
                JS::Handle<JS::Value> aValue, ErrorResult& aRv)
{
  JSAutoCompartment ac(aCx, aGlobal->GetGlobalJSObject());
  JS::Rooted<JSObject*> p(aCx,
                          JS::CallOriginalPromiseReject(aCx, aValue));
  if (!p) {
    aRv.NoteJSContextException(aCx);
    return nullptr;
  }

  return CreateFromExisting(aGlobal, p);
}
Beispiel #6
0
// static
already_AddRefed<Promise>
Promise::All(const GlobalObject& aGlobal,
             const nsTArray<RefPtr<Promise>>& aPromiseList, ErrorResult& aRv)
{
  nsCOMPtr<nsIGlobalObject> global;
  global = do_QueryInterface(aGlobal.GetAsSupports());
  if (!global) {
    aRv.Throw(NS_ERROR_UNEXPECTED);
    return nullptr;
  }

  JSContext* cx = aGlobal.Context();

  JS::AutoObjectVector promises(cx);
  if (!promises.reserve(aPromiseList.Length())) {
    aRv.NoteJSContextException(cx);
    return nullptr;
  }

  for (auto& promise : aPromiseList) {
    JS::Rooted<JSObject*> promiseObj(cx, promise->PromiseObj());
    // Just in case, make sure these are all in the context compartment.
    if (!JS_WrapObject(cx, &promiseObj)) {
      aRv.NoteJSContextException(cx);
      return nullptr;
    }
    promises.infallibleAppend(promiseObj);
  }

  JS::Rooted<JSObject*> result(cx, JS::GetWaitForAllPromise(cx, promises));
  if (!result) {
    aRv.NoteJSContextException(cx);
    return nullptr;
  }

  return CreateFromExisting(global, result);
}
Beispiel #7
0
void
VRStageParameters::GetSittingToStandingTransform(JSContext* aCx,
                                                 JS::MutableHandle<JSObject*> aRetval,
                                                 ErrorResult& aRv)
{
  if (!mSittingToStandingTransformArray) {
    // Lazily create the Float32Array
    mSittingToStandingTransformArray = dom::Float32Array::Create(aCx, this, 16,
      mSittingToStandingTransform.components);
    if (!mSittingToStandingTransformArray) {
      aRv.NoteJSContextException(aCx);
      return;
    }
  }
  aRetval.set(mSittingToStandingTransformArray);
}
Beispiel #8
0
void
VRFrameData::LazyCreateMatrix(JS::Heap<JSObject*>& aArray, gfx::Matrix4x4& aMat, JSContext* aCx,
                              JS::MutableHandle<JSObject*> aRetval, ErrorResult& aRv)
{
  if (!aArray) {
    // Lazily create the Float32Array
    aArray = dom::Float32Array::Create(aCx, this, 16, aMat.components);
    if (!aArray) {
      aRv.NoteJSContextException(aCx);
      return;
    }
  }
  if (aArray) {
    JS::ExposeObjectToActiveJS(aArray);
  }
  aRetval.set(aArray);
}