docshell/base/nsDSURIContentListener.h
author David Anderson <danderson@mozilla.com>
Mon, 17 Oct 2011 11:52:12 -0700
changeset 105280 f93960a93ad97a56d308bd9ce25d97cbc175d524
parent 55818 5fcb86d516919d4d0c731ec678f54d434b722b20
child 94475 f4157e8c410708d76703f19e4dfb61859bfe32d8
permissions -rw-r--r--
Merge from mozilla-central.

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * 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
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 * 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.
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 * The Original Code is the Mozilla browser.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications, Inc.
 * Portions created by the Initial Developer are Copyright (C) 1999
 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *   Travis Bogard <travis@netscape.com>
 *
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 * either of 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"),
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#ifndef nsDSURIContentListener_h__
#define nsDSURIContentListener_h__

#include "nsCOMPtr.h"
#include "nsString.h"
#include "nsIURIContentListener.h"
#include "nsWeakReference.h"

class nsDocShell;
class nsIWebNavigationInfo;

class nsDSURIContentListener :
    public nsIURIContentListener,
    public nsSupportsWeakReference

{
friend class nsDocShell;
public:
    NS_DECL_ISUPPORTS
    NS_DECL_NSIURICONTENTLISTENER

    nsresult Init();

protected:
    nsDSURIContentListener(nsDocShell* aDocShell);
    virtual ~nsDSURIContentListener();

    void DropDocShellreference() {
        mDocShell = nsnull;
    }

    // Determine if X-Frame-Options allows content to be framed
    // as a subdocument
    bool CheckFrameOptions(nsIRequest* request);

protected:
    nsDocShell*                      mDocShell;

    // Store the parent listener in either of these depending on
    // if supports weak references or not. Proper weak refs are
    // preferred and encouraged!
    nsWeakPtr                        mWeakParentContentListener;
    nsIURIContentListener*           mParentContentListener;

    nsCOMPtr<nsIWebNavigationInfo>   mNavInfo;
};

#endif /* nsDSURIContentListener_h__ */