Exemplo n.º 1
0
nsresult
IDBRequest::NotifyHelperCompleted(HelperBase* aHelper)
{
  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
  NS_ASSERTION(!mHaveResultOrErrorCode, "Already called!");
  NS_ASSERTION(JSVAL_IS_VOID(mResultVal), "Should be undefined!");

  // See if our window is still valid. If not then we're going to pretend that
  // we never completed.
  if (NS_FAILED(CheckInnerWindowCorrectness())) {
    return NS_OK;
  }

  mHaveResultOrErrorCode = true;

  nsresult rv = aHelper->GetResultCode();

  // If the request failed then set the error code and return.
  if (NS_FAILED(rv)) {
    SetError(rv);
    return NS_OK;
  }

  // Otherwise we need to get the result from the helper.
  JSContext* cx = GetJSContext();
  if (!cx) {
    NS_WARNING("Failed to get safe JSContext!");
    rv = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
    SetError(rv);
    return rv;
  }

  JSObject* global = GetParentObject();
  NS_ASSERTION(global, "This should never be null!");

  JSAutoRequest ar(cx);
  JSAutoEnterCompartment ac;
  if (ac.enter(cx, global)) {
    AssertIsRooted();

    rv = aHelper->GetSuccessResult(cx, &mResultVal);
    if (NS_FAILED(rv)) {
      NS_WARNING("GetSuccessResult failed!");
    }
  }
  else {
    NS_WARNING("Failed to enter correct compartment!");
    rv = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
  }

  if (NS_SUCCEEDED(rv)) {
    mError = nullptr;
  }
  else {
    SetError(rv);
    mResultVal = JSVAL_VOID;
  }

  return rv;
}
Exemplo n.º 2
0
void
IDBRequest::SetResultCallback(ResultCallback* aCallback)
{
  AssertIsOnOwningThread();
  MOZ_ASSERT(aCallback);
  MOZ_ASSERT(!mHaveResultOrErrorCode);
  MOZ_ASSERT(mResultVal.isUndefined());
  MOZ_ASSERT(!mError);

  // See if our window is still valid.
  if (NS_WARN_IF(NS_FAILED(CheckInnerWindowCorrectness()))) {
    SetError(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
    return;
  }

  AutoJSAPI autoJS;
  Maybe<JSAutoCompartment> ac;

  if (GetScriptOwner()) {
    // If we have a script owner we want the SafeJSContext and then to enter the
    // script owner's compartment.
    autoJS.Init();
    JS::ExposeObjectToActiveJS(GetScriptOwner());
    ac.emplace(autoJS.cx(), GetScriptOwner());
  } else {
    // Otherwise our owner is a window and we use that to initialize.
    MOZ_ASSERT(GetOwner());
    if (!autoJS.Init(GetOwner())) {
      IDB_WARNING("Failed to initialize AutoJSAPI!");
      SetError(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
      return;
    }
  }

  JSContext* cx = autoJS.cx();

  AssertIsRooted();

  JS::Rooted<JS::Value> result(cx);
  nsresult rv = aCallback->GetResult(cx, &result);
  if (NS_WARN_IF(NS_FAILED(rv))) {
    // This can only fail if the structured clone contains a mutable file
    // and the child is not in the main thread and main process.
    // In that case CreateAndWrapMutableFile() returns false which shows up
    // as NS_ERROR_DOM_DATA_CLONE_ERR here.
    MOZ_ASSERT(rv == NS_ERROR_DOM_DATA_CLONE_ERR);

    // We are not setting a result or an error object here since we want to
    // throw an exception when the 'result' property is being touched.
    return;
  }

  mError = nullptr;
  mResultVal = result;

  mHaveResultOrErrorCode = true;
}
Exemplo n.º 3
0
void
IDBRequest::SetResultCallback(ResultCallback* aCallback)
{
  AssertIsOnOwningThread();
  MOZ_ASSERT(aCallback);
  MOZ_ASSERT(!mHaveResultOrErrorCode);
  MOZ_ASSERT(mResultVal.isUndefined());
  MOZ_ASSERT(!mError);

  // See if our window is still valid.
  if (NS_WARN_IF(NS_FAILED(CheckInnerWindowCorrectness()))) {
    IDB_REPORT_INTERNAL_ERR();
    SetError(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
    return;
  }

  AutoJSAPI autoJS;
  Maybe<JSAutoCompartment> ac;

  if (GetScriptOwner()) {
    // If we have a script owner we want the SafeJSContext and then to enter the
    // script owner's compartment.
    autoJS.Init();
    ac.emplace(autoJS.cx(), GetScriptOwner());
  } else {
    // Otherwise our owner is a window and we use that to initialize.
    MOZ_ASSERT(GetOwner());
    if (!autoJS.InitWithLegacyErrorReporting(GetOwner())) {
      IDB_WARNING("Failed to initialize AutoJSAPI!");
      SetError(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
      return;
    }
  }

  JSContext* cx = autoJS.cx();

  AssertIsRooted();

  JS::Rooted<JS::Value> result(cx);
  nsresult rv = aCallback->GetResult(cx, &result);
  if (NS_WARN_IF(NS_FAILED(rv))) {
    SetError(rv);
    mResultVal.setUndefined();
  } else {
    mError = nullptr;
    mResultVal = result;
  }

  mHaveResultOrErrorCode = true;
}