/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * ***** 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 mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Brian Ryner.
 * Portions created by the Initial Developer are Copyright (C) 2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Scott MacGregor <mscott@netscape.com>
 *
 * 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 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 ***** */

#include "nsIconChannel.h"
#include "nsIconURI.h"
#include "nsIconProtocolHandler.h"
#include "nsIURL.h"
#include "nsCRT.h"
#include "nsCOMPtr.h"
#include "nsIComponentManager.h"
#include "nsIServiceManager.h"
#include "nsNetCID.h"

////////////////////////////////////////////////////////////////////////////////

nsIconProtocolHandler::nsIconProtocolHandler() 
{
}

nsIconProtocolHandler::~nsIconProtocolHandler() 
{}

NS_IMPL_ISUPPORTS2(nsIconProtocolHandler, nsIProtocolHandler, nsISupportsWeakReference)

    
////////////////////////////////////////////////////////////////////////////////
// nsIProtocolHandler methods:

NS_IMETHODIMP nsIconProtocolHandler::GetScheme(nsACString &result) 
{
  result = "moz-icon";
  return NS_OK;
}

NS_IMETHODIMP nsIconProtocolHandler::GetDefaultPort(PRInt32 *result) 
{
  *result = 0;
  return NS_OK;
}

NS_IMETHODIMP nsIconProtocolHandler::AllowPort(PRInt32 port, const char *scheme, PRBool *_retval)
{
    // don't override anything.  
    *_retval = PR_FALSE;
    return NS_OK;
}

NS_IMETHODIMP nsIconProtocolHandler::GetProtocolFlags(PRUint32 *result)
{
  *result = URI_NORELATIVE | URI_NOAUTH | URI_IS_UI_RESOURCE |
            URI_IS_LOCAL_RESOURCE;
  return NS_OK;
}

NS_IMETHODIMP nsIconProtocolHandler::NewURI(const nsACString &aSpec,
                                            const char *aOriginCharset, // ignored
                                            nsIURI *aBaseURI,
                                            nsIURI **result) 
{
  
  nsCOMPtr<nsIURI> uri;
  NS_NEWXPCOM(uri, nsMozIconURI);
  if (!uri) return NS_ERROR_OUT_OF_MEMORY;

  nsresult rv = uri->SetSpec(aSpec);
  if (NS_FAILED(rv)) return rv;

  NS_ADDREF(*result = uri);
  return NS_OK;
}

NS_IMETHODIMP nsIconProtocolHandler::NewChannel(nsIURI* url, nsIChannel* *result)
{
  NS_ENSURE_ARG_POINTER(url);
  nsIconChannel* channel = new nsIconChannel;
  if (!channel)
    return NS_ERROR_OUT_OF_MEMORY;
  NS_ADDREF(channel);

  nsresult rv = channel->Init(url);
  if (NS_FAILED(rv)) {
    NS_RELEASE(channel);
    return rv;
  }

  *result = channel;
  return NS_OK;
}

////////////////////////////////////////////////////////////////////////////////