/* -*- Mode: C++; tab-width: 2; 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 SVG project.
 *
 * The Initial Developer of the Original Code is 
 * Bradley Baetz.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *         Bradley Baetz <bbaetz@cs.mcgill.ca> (original author)
 *
 * 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 MPL, the GPL or the LGPL.
 *
 * ----- END LICENSE BLOCK ----- */

#include "nsSVGDocument.h"
#include "nsIDOMClassInfo.h"
#include "nsContentUtils.h"
#include "nsIHttpChannel.h"
#include "nsXPIDLString.h"

NS_INTERFACE_MAP_BEGIN(nsSVGDocument)
  NS_INTERFACE_MAP_ENTRY(nsIDOMSVGDocument)
  NS_INTERFACE_MAP_ENTRY(nsIDOMDocumentEvent)
  NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(SVGDocument)
NS_INTERFACE_MAP_END_INHERITING(nsXMLDocument)

NS_IMPL_ADDREF_INHERITED(nsSVGDocument, nsXMLDocument)
NS_IMPL_RELEASE_INHERITED(nsSVGDocument, nsXMLDocument)

nsSVGDocument::nsSVGDocument() {

}

nsSVGDocument::~nsSVGDocument() {

}

NS_IMETHODIMP
nsSVGDocument::StartDocumentLoad(const char* aCommand,
                                 nsIChannel* aChannel,
                                 nsILoadGroup* aLoadGroup,
                                 nsISupports* aContainer,
                                 nsIStreamListener **aDocListener,
                                 PRBool aReset) {
  nsresult rv = nsXMLDocument::StartDocumentLoad(aCommand,
                                                 aChannel,
                                                 aLoadGroup,
                                                 aContainer,
                                                 aDocListener,
                                                 aReset);
  if (NS_FAILED(rv)) return rv;

  nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(aChannel);
  if (httpChannel) {
    nsXPIDLCString referrer;
    rv = httpChannel->GetResponseHeader("referrer", getter_Copies(referrer));
    if (NS_SUCCEEDED(rv)) {
      mReferrer.AssignWithConversion(referrer);
    }
  }

  return NS_OK;
}

// nsIDOMSVGDocument

NS_IMETHODIMP
nsSVGDocument::GetTitle(nsAWritableString& aTitle) {
  return nsXMLDocument::GetTitle(aTitle);
}

NS_IMETHODIMP
nsSVGDocument::GetReferrer(nsAWritableString& aReferrer) {
  aReferrer.Assign(mReferrer);
  return NS_OK;
}

NS_IMETHODIMP
nsSVGDocument::GetDomain(nsAWritableString& aDomain) {
  if (!mDocumentURL) {
    aDomain.Truncate();
  } else {
    nsXPIDLCString domain;
    nsresult rv = mDocumentURL->GetHost(getter_Copies(domain));
    if (NS_FAILED(rv)) return rv;
    
    aDomain.Assign(NS_ConvertASCIItoUCS2(domain));
  }
  
  return NS_OK;
}

NS_IMETHODIMP
nsSVGDocument::GetURL(nsAWritableString& aURL) {
  if (!mDocumentURL) {
    aURL.Truncate();
  } else {
    nsXPIDLCString url;
    nsresult rv = mDocumentURL->GetSpec(getter_Copies(url));
    if (NS_FAILED(rv)) return rv;    
    aURL.Assign(NS_ConvertASCIItoUCS2(url));
  }
  
  return NS_OK;
}

NS_IMETHODIMP
nsSVGDocument::GetRootElement(nsIDOMSVGSVGElement** aRootElement) {
  NS_NOTYETIMPLEMENTED("nsSVGDocument::GetRootElement");
  // XXX - writeme
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_EXPORT nsresult
NS_NewSVGDocument(nsIDocument** aInstancePtrResult)
{
  nsSVGDocument* doc = new nsSVGDocument();
  if (!doc)
    return NS_ERROR_OUT_OF_MEMORY;
  return doc->QueryInterface(NS_GET_IID(nsIDocument),
                             (void**) aInstancePtrResult);
}