/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Mozilla browser.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications, Inc.
 * Portions created by the Initial Developer are Copyright (C) 1999
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Radha Kulkarni <radha@netscape.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef nsSHEntry_h
#define nsSHEntry_h

// Helper Classes
#include "nsCOMPtr.h"
#include "nsCOMArray.h"
#include "nsString.h"
#include "nsAutoPtr.h"

// Interfaces needed
#include "nsIContentViewer.h"
#include "nsIInputStream.h"
#include "nsILayoutHistoryState.h"
#include "nsISHEntry.h"
#include "nsISHContainer.h"
#include "nsIURI.h"
#include "nsIEnumerator.h"
#include "nsIHistoryEntry.h"
#include "nsRect.h"
#include "nsISupportsArray.h"
#include "nsIMutationObserver.h"
#include "nsExpirationTracker.h"
#include "nsDocShellEditorData.h"

class nsSHEntry : public nsISHEntry,
                  public nsISHContainer,
                  public nsIMutationObserver
{
public: 
  nsSHEntry();
  nsSHEntry(const nsSHEntry &other);

  NS_DECL_ISUPPORTS
  NS_DECL_NSIHISTORYENTRY
  NS_DECL_NSISHENTRY
  NS_DECL_NSISHCONTAINER
  NS_DECL_NSIMUTATIONOBSERVER

  void DropPresentationState();

  void Expire();
  
  nsExpirationState *GetExpirationState() { return &mExpirationState; }
  
  static nsresult Startup();
  static void Shutdown();
  
private:
  ~nsSHEntry();
  void DocumentMutated();

  nsCOMPtr<nsIURI>                mURI;
  nsCOMPtr<nsIURI>                mReferrerURI;
  nsCOMPtr<nsIContentViewer>      mContentViewer;
  nsCOMPtr<nsIDocument>           mDocument; // document currently being observed
  nsString                        mTitle;
  nsCOMPtr<nsIInputStream>        mPostData;
  nsCOMPtr<nsILayoutHistoryState> mLayoutHistoryState;
  nsCOMArray<nsISHEntry>          mChildren;
  PRUint32                        mLoadType;  
  PRUint32                        mID;
  PRUint32                        mPageIdentifier;
  PRInt32                         mScrollPositionX;
  PRInt32                         mScrollPositionY;
  PRPackedBool                    mIsFrameNavigation;
  PRPackedBool                    mSaveLayoutState;
  PRPackedBool                    mExpired;
  PRPackedBool                    mSticky;
  nsCString                       mContentType;
  nsCOMPtr<nsISupports>           mCacheKey;
  nsISHEntry *                    mParent;  // weak reference
  nsCOMPtr<nsISupports>           mWindowState;
  nsIntRect                       mViewerBounds;
  nsCOMArray<nsIDocShellTreeItem> mChildShells;
  nsCOMPtr<nsISupportsArray>      mRefreshURIList;
  nsCOMPtr<nsISupports>           mOwner;
  nsExpirationState               mExpirationState;
  nsAutoPtr<nsDocShellEditorData> mEditorData;
};

#endif /* nsSHEntry_h */
