/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "AccessibleOrProxy.h"
#include "DocAccessible.h"

using namespace mozilla::a11y;

AccessibleOrProxy
AccessibleOrProxy::Parent() const
{
  if (IsAccessible()) {
    return AsAccessible()->Parent();
  }

  ProxyAccessible* proxy = AsProxy();
  if (!proxy) {
    return nullptr;
  }

  if (ProxyAccessible* parent = proxy->Parent()) {
    return parent;
  }

  // Otherwise this should be the proxy for the tab's top level document.
  return proxy->OuterDocOfRemoteBrowser();
}