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nsDSURIContentListener.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
00002  *
00003  * ***** BEGIN LICENSE BLOCK *****
00004  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00005  *
00006  * The contents of this file are subject to the Mozilla Public License Version
00007  * 1.1 (the "License"); you may not use this file except in compliance with
00008  * the License. You may obtain a copy of the License at
00009  * http://www.mozilla.org/MPL/
00010  *
00011  * Software distributed under the License is distributed on an "AS IS" basis,
00012  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00013  * for the specific language governing rights and limitations under the
00014  * License.
00015  *
00016  * The Original Code is the Mozilla browser.
00017  *
00018  * The Initial Developer of the Original Code is
00019  * Netscape Communications, Inc.
00020  * Portions created by the Initial Developer are Copyright (C) 1999
00021  * the Initial Developer. All Rights Reserved.
00022  *
00023  * Contributor(s):
00024  *   Travis Bogard <travis@netscape.com>
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either of the GNU General Public License Version 2 or later (the "GPL"),
00028  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00029  * in which case the provisions of the GPL or the LGPL are applicable instead
00030  * of those above. If you wish to allow use of your version of this file only
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00035  * the provisions above, a recipient may use your version of this file under
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00037  *
00038  * ***** END LICENSE BLOCK ***** */
00039 
00040 #ifndef nsDSURIContentListener_h__
00041 #define nsDSURIContentListener_h__
00042 
00043 #include "nsCOMPtr.h"
00044 #include "nsString.h"
00045 #include "nsIURIContentListener.h"
00046 #include "nsWeakReference.h"
00047 
00048 class nsDocShell;
00049 class nsIWebNavigationInfo;
00050 
00051 class nsDSURIContentListener :
00052     public nsIURIContentListener,
00053     public nsSupportsWeakReference
00054 
00055 {
00056 friend class nsDocShell;
00057 public:
00058     NS_DECL_ISUPPORTS
00059     NS_DECL_NSIURICONTENTLISTENER
00060 
00061     nsresult Init();
00062 
00063 protected:
00064     nsDSURIContentListener(nsDocShell* aDocShell);
00065     virtual ~nsDSURIContentListener();
00066 
00067     void DropDocShellreference() {
00068         mDocShell = nsnull;
00069     }
00070 
00071 protected:
00072     nsDocShell*                      mDocShell;
00073 
00074     // Store the parent listener in either of these depending on
00075     // if supports weak references or not. Proper weak refs are
00076     // preferred and encouraged!
00077     nsWeakPtr                        mWeakParentContentListener;
00078     nsIURIContentListener*           mParentContentListener;
00079 
00080     nsCOMPtr<nsIWebNavigationInfo>   mNavInfo;
00081 };
00082 
00083 #endif /* nsDSURIContentListener_h__ */