/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
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 * 1.1 (the "License"); you may not use this file except in compliance with
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 * 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 mozilla.org code.
 *
 * The Initial Developer of the Original Code is
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 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *
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 * 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"),
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/*
 * a piece of state that is stored in session history when the document
 * is not
 */

#ifndef nsPresState_h_
#define nsPresState_h_

#include "prtypes.h"
#include "nsPoint.h"
#include "nsAutoPtr.h"
#include "nsRect.h"

class nsPresState
{
public:
  nsPresState()
    : mContentData(nsnull)
    , mScrollState(0, 0)
    , mDisabledSet(PR_FALSE)
    , mDisabled(PR_FALSE)
  {}

  void SetScrollState(const nsPoint& aState)
  {
    mScrollState = aState;
  }

  nsPoint GetScrollState()
  {
    return mScrollState;
  }

  void ClearNonScrollState()
  {
    mContentData = nsnull;
    mDisabledSet = PR_FALSE;
  }

  PRBool GetDisabled()
  {
    return mDisabled;
  }

  void SetDisabled(PRBool aDisabled)
  {
    mDisabled = aDisabled;
    mDisabledSet = PR_TRUE;
  }

  PRBool IsDisabledSet()
  {
    return mDisabledSet;
  }

  nsISupports* GetStateProperty()
  {
    return mContentData;
  }

  void SetStateProperty(nsISupports *aProperty)
  {
    mContentData = aProperty;
  }

// MEMBER VARIABLES
protected:
  nsCOMPtr<nsISupports> mContentData;
  nsPoint mScrollState;
  PRPackedBool mDisabledSet;
  PRPackedBool mDisabled;
};

#endif /* nsPresState_h_ */