/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * 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 Corporation. Portions created by Netscape are
 * Copyright (C) 1999 Netscape Communications Corporation. All
 * Rights Reserved.
 * 
 * Contributor(s): 
 *   Stuart Parmenter <pavlov@netscape.com>
 */

#include "nsCOMPtr.h"
#include "nsIDOMWindow.h"
#include "nsIScriptGlobalObject.h"
#include "nsIWebShell.h"
#include "nsIContentViewer.h"
#include "nsIDocumentViewer.h"
#include "nsIPresShell.h"
#include "nsIViewManager.h"
#include "nsIView.h"
#include "nsIWidget.h"

#include "nsBaseFilePicker.h"

nsBaseFilePicker::nsBaseFilePicker()
{

}

nsBaseFilePicker::~nsBaseFilePicker()
{

}

/* XXX aaaarrrrrrgh! */
NS_IMETHODIMP nsBaseFilePicker::DOMWindowToWidget(nsIDOMWindow *dw, nsIWidget **aResult)
{
  nsresult rv = NS_ERROR_FAILURE;
  *aResult = nsnull;

  nsCOMPtr<nsIScriptGlobalObject> sgo = do_QueryInterface(dw);
  if (sgo) {
    nsCOMPtr<nsIWebShell> webShell;
    sgo->GetWebShell(getter_AddRefs(webShell));
    
    if (webShell) {

      nsCOMPtr<nsIContentViewer> contentViewer;
      rv = webShell->GetContentViewer(getter_AddRefs(contentViewer));

      if (NS_SUCCEEDED(rv)) {
        nsCOMPtr<nsIDocumentViewer> documentViewer;
        documentViewer = do_QueryInterface(webShell, &rv);
        
        if (NS_SUCCEEDED(rv)) {
          nsCOMPtr<nsIPresShell> presShell;
          rv = documentViewer->GetPresShell(*getter_AddRefs(presShell));

          if (NS_SUCCEEDED(rv)) {
            nsCOMPtr<nsIViewManager> viewManager;
            rv = presShell->GetViewManager(getter_AddRefs(viewManager));
            
            if (NS_SUCCEEDED(rv)) {
              nsIView *view;
              rv = viewManager->GetRootView(view);
              
              if (NS_SUCCEEDED(rv)) {
                nsCOMPtr<nsIWidget> widget;
                rv = view->GetWidget(*getter_AddRefs(widget));

		if (NS_SUCCEEDED(rv)) {
		  *aResult = widget;
		  NS_ADDREF(*aResult);
		  return NS_OK;
		}
		
              }
            }
          }
        }
      }
    }
  }
  return rv;
}

//-------------------------------------------------------------------------
NS_IMETHODIMP nsBaseFilePicker::Create(nsIDOMWindow *aParent,
				       const PRUnichar *aTitle,
				       PRInt16 aMode)
{
  nsCOMPtr<nsIWidget> widget;
  nsresult rv = DOMWindowToWidget(aParent, getter_AddRefs(widget));

  if (NS_SUCCEEDED(rv))
  {
    return CreateNative(widget, aTitle, aMode);
  }

  return rv;
}
