/* ***** 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
 * Christopher Blizzard.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Christopher Blizzard <blizzard@mozilla.org>
 *
 * 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 "nsIURI.h"

#include "EmbedContentListener.h"
#include "EmbedPrivate.h"

#include "nsServiceManagerUtils.h"
#include "nsIWebNavigationInfo.h"
#include "nsDocShellCID.h"

EmbedContentListener::EmbedContentListener(void)
{
  mOwner = nsnull;
}

EmbedContentListener::~EmbedContentListener()
{
}

NS_IMPL_ISUPPORTS2(EmbedContentListener,
                   nsIURIContentListener,
                   nsISupportsWeakReference)

nsresult
EmbedContentListener::Init(EmbedPrivate *aOwner)
{
  mOwner = aOwner;
  return NS_OK;
}

NS_IMETHODIMP
EmbedContentListener::OnStartURIOpen(nsIURI     *aURI,
				     PRBool     *aAbortOpen)
{
  nsresult rv;

  nsCAutoString specString;
  rv = aURI->GetSpec(specString);

  if (NS_FAILED(rv))
    return rv;

  gint return_val = FALSE;
  g_signal_emit(G_OBJECT(mOwner->mOwningWidget),
                moz_embed_signals[OPEN_URI], 0,
                specString.get(), &return_val);

  *aAbortOpen = return_val;

  return NS_OK;
}

NS_IMETHODIMP
EmbedContentListener::DoContent(const char         *aContentType,
				PRBool             aIsContentPreferred,
				nsIRequest         *aRequest,
				nsIStreamListener **aContentHandler,
				PRBool             *aAbortProcess)
{
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
EmbedContentListener::IsPreferred(const char        *aContentType,
				  char             **aDesiredContentType,
				  PRBool            *aCanHandleContent)
{
  return CanHandleContent(aContentType, PR_TRUE, aDesiredContentType,
			  aCanHandleContent);
}

NS_IMETHODIMP
EmbedContentListener::CanHandleContent(const char        *aContentType,
				       PRBool           aIsContentPreferred,
				       char             **aDesiredContentType,
				       PRBool            *_retval)
{
  *_retval = PR_FALSE;
  *aDesiredContentType = nsnull;
  
  if (aContentType) {
    nsCOMPtr<nsIWebNavigationInfo> webNavInfo(
           do_GetService(NS_WEBNAVIGATION_INFO_CONTRACTID));
    if (webNavInfo) {
      PRUint32 canHandle;
      nsresult rv =
	webNavInfo->IsTypeSupported(nsDependentCString(aContentType),
				    mOwner ? mOwner->mNavigation.get() : nsnull,
				    &canHandle);
      NS_ENSURE_SUCCESS(rv, rv);
      *_retval = (canHandle != nsIWebNavigationInfo::UNSUPPORTED);
    }
  }
  return NS_OK;
}

NS_IMETHODIMP
EmbedContentListener::GetLoadCookie(nsISupports **aLoadCookie)
{
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
EmbedContentListener::SetLoadCookie(nsISupports *aLoadCookie)
{
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
EmbedContentListener::GetParentContentListener(nsIURIContentListener **aParent)
{
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
EmbedContentListener::SetParentContentListener(nsIURIContentListener *aParent)
{
  return NS_ERROR_NOT_IMPLEMENTED;
}