/* -*- 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 "nsDOMWindowList.h"

#include "FlushType.h"

#include "nsCOMPtr.h"

#include "nsIDocument.h"

#include "nsIDOMWindow.h"

#include "nsIDocShell.h"

#include "nsIInterfaceRequestorUtils.h"

#include "nsIScriptGlobalObject.h"

#include "nsIWebNavigation.h"

using namespace mozilla;

nsDOMWindowList::nsDOMWindowList(nsIDocShell *aDocShell)

{

  SetDocShell(aDocShell);

}

nsDOMWindowList::~nsDOMWindowList()

{

}

void

nsDOMWindowList::SetDocShell(nsIDocShell* aDocShell)

{

  mDocShellNode = aDocShell; // Weak Reference

}

void

nsDOMWindowList::EnsureFresh()

{

  nsCOMPtr<nsIWebNavigation> shellAsNav = do_QueryInterface(mDocShellNode);

  if (shellAsNav) {

    nsCOMPtr<nsIDocument> doc;

    shellAsNav->GetDocument(getter_AddRefs(doc));

    if (doc) {

      doc->FlushPendingNotifications(FlushType::ContentAndNotify);

    }

  }

}

uint32_t

nsDOMWindowList::GetLength()

{

  EnsureFresh();

  NS_ENSURE_TRUE(mDocShellNode, 0);

  int32_t length;

  nsresult rv = mDocShellNode->GetChildCount(&length);

  NS_ENSURE_SUCCESS(rv, 0);

  return uint32_t(length);

}

already_AddRefed<nsPIDOMWindowOuter>

nsDOMWindowList::IndexedGetter(uint32_t aIndex)

{

  nsCOMPtr<nsIDocShellTreeItem> item = GetDocShellTreeItemAt(aIndex);

  if (!item) {

    return nullptr;

  }

  nsCOMPtr<nsPIDOMWindowOuter> window = item->GetWindow();

  MOZ_ASSERT(window);

  return window.forget();

}

already_AddRefed<nsPIDOMWindowOuter>

nsDOMWindowList::NamedItem(const nsAString& aName)

{

  EnsureFresh();

  if (!mDocShellNode) {

    return nullptr;

  }

  nsCOMPtr<nsIDocShellTreeItem> item;

  mDocShellNode->FindChildWithName(aName, false, false, nullptr,

                                   nullptr, getter_AddRefs(item));

  nsCOMPtr<nsPIDOMWindowOuter> childWindow(do_GetInterface(item));

  return childWindow.forget();

}