/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Netscape 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/NPL/
 *
 * 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 
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either 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 NPL, 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 NPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */
#include "nsPresContext.h"
#include "nsGfxCIID.h"
#include "nsLayoutAtoms.h"


class GalleyContext : public nsPresContext {
public:
  GalleyContext();
  ~GalleyContext();

  NS_IMETHOD GetMedium(nsIAtom** aMedium);
  NS_IMETHOD IsPaginated(PRBool* aResult);
  NS_IMETHOD SetPaginatedScrolling(PRBool aResult)  { return NS_ERROR_FAILURE; }
  NS_IMETHOD GetPaginatedScrolling(PRBool* aResult);
  NS_IMETHOD GetPageDim(nsRect* aActualRect, nsRect* aAdjRect);
  NS_IMETHOD SetPageDim(nsRect* aRect);
};

GalleyContext::GalleyContext()
{
}

GalleyContext::~GalleyContext()
{
}

NS_IMETHODIMP
GalleyContext::GetMedium(nsIAtom** aResult)
{
  NS_PRECONDITION(nsnull != aResult, "null ptr");
  if (nsnull == aResult) {
    return NS_ERROR_NULL_POINTER;
  }
  *aResult = nsLayoutAtoms::screen;
  NS_ADDREF(*aResult);
  return NS_OK;
}

NS_IMETHODIMP
GalleyContext::IsPaginated(PRBool* aResult)
{
  NS_PRECONDITION(nsnull != aResult, "null ptr");
  if (nsnull == aResult) {
    return NS_ERROR_NULL_POINTER;
  }
  *aResult = PR_FALSE;
  return NS_OK;
}

NS_IMETHODIMP
GalleyContext::GetPaginatedScrolling(PRBool* aResult)
{
  NS_ENSURE_ARG_POINTER(aResult);
  *aResult = PR_FALSE;
  return NS_OK;
}

NS_IMETHODIMP
GalleyContext::GetPageDim(nsRect* aActualRect, nsRect* aAdjRect)
{
  NS_ENSURE_ARG_POINTER(aActualRect);
  NS_ENSURE_ARG_POINTER(aAdjRect);
  aActualRect->SetRect(0, 0, 0, 0);
  aAdjRect->SetRect(0, 0, 0, 0);
  return NS_ERROR_FAILURE;
}

NS_IMETHODIMP
GalleyContext::SetPageDim(nsRect* aPageDim)
{
  NS_ENSURE_ARG_POINTER(aPageDim);
  return NS_ERROR_FAILURE;
}

nsresult
NS_NewGalleyContext(nsIPresContext** aInstancePtrResult)
{
  if (aInstancePtrResult == nsnull) {
    return NS_ERROR_NULL_POINTER;
  }

  GalleyContext *it = new GalleyContext();

  if (it == nsnull) {
    return NS_ERROR_OUT_OF_MEMORY;
  }

  return it->QueryInterface(NS_GET_IID(nsIPresContext), (void **) aInstancePtrResult);
}