/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 "mozilla/dom/ParentSHistory.h"

#include "mozilla/dom/ParentSHistoryBinding.h"

#include "mozilla/dom/TabParent.h"

#include "nsDocShell.h"

#include "nsFrameLoader.h"

#include "nsXULAppAPI.h"

namespace mozilla {

namespace dom {

ParentSHistory::ParentSHistory(nsFrameLoader* aFrameLoader)

  : mFrameLoader(aFrameLoader)

{

  MOZ_ASSERT(XRE_IsParentProcess());

}

ParentSHistory::~ParentSHistory()

{

}

nsDocShell*

ParentSHistory::GetDocShell()

{

  return nsDocShell::Cast(mFrameLoader->GetExistingDocShell());

}

TabParent*

ParentSHistory::GetTabParent()

{

  return static_cast<TabParent*>(mFrameLoader->GetRemoteBrowser());

}

already_AddRefed<ChildSHistory>

ParentSHistory::GetChildIfSameProcess()

{

  if (GetDocShell()) {

    return GetDocShell()->GetSessionHistory();

  }

  return nullptr;

}

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ParentSHistory)

  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY

  NS_INTERFACE_MAP_ENTRY(nsISupports)

NS_INTERFACE_MAP_END

NS_IMPL_CYCLE_COLLECTING_ADDREF(ParentSHistory)

NS_IMPL_CYCLE_COLLECTING_RELEASE(ParentSHistory)

NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(ParentSHistory,

                                      mFrameLoader)

JSObject*

ParentSHistory::WrapObject(JSContext* cx, JS::Handle<JSObject*> aGivenProto)

{

  return ParentSHistory_Binding::Wrap(cx, this, aGivenProto);

}

nsISupports*

ParentSHistory::GetParentObject() const

{

  return mFrameLoader;

}

} // namespace dom

} // namespace mozilla