pjs/widget/xpwidgets/nsClipboardPrivacyHandler.h

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/* -*- 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 mozilla.org code.
*
* The Initial Developer of the Original Code is
* Ehsan Akhgari.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Ehsan Akhgari <ehsan.akhgari@gmail.com> (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
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* 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
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* 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.
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* ***** END LICENSE BLOCK ***** */
#ifndef nsClipboardPrivacyHandler_h__
#define nsClipboardPrivacyHandler_h__
#include "nsIObserver.h"
#include "nsIPrivateBrowsingService.h"
#include "nsWeakReference.h"
#include "nsCOMPtr.h"
class nsITransferable;
// nsClipboardPrivacyHandler makes sure that clipboard data copied during
// the private browsing mode does not leak after exiting this mode.
// In order to ensure this, callers should store an object of this class
// for their lifetime, and call PrepareDataForClipboard in their
// nsIClipboard::SetData implementation before starting to use the
// nsITransferable object in any way.
class nsClipboardPrivacyHandler : public nsIObserver,
public nsSupportsWeakReference
{
public:
// nsISupports
NS_DECL_ISUPPORTS
// nsIObserver
NS_DECL_NSIOBSERVER
nsresult Init();
nsresult PrepareDataForClipboard(nsITransferable * aTransferable);
private:
bool InPrivateBrowsing();
nsCOMPtr<nsIPrivateBrowsingService> mPBService;
};
nsresult NS_NewClipboardPrivacyHandler(nsClipboardPrivacyHandler ** aHandler);
#endif // nsClipboardPrivacyHandler_h__