1 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is mozilla.org code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Ehsan Akhgari.
19 : * Portions created by the Initial Developer are Copyright (C) 2009
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Ehsan Akhgari <ehsan.akhgari@gmail.com> (Original author)
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either the GNU General Public License Version 2 or later (the "GPL"), or
27 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #ifndef nsClipboardPrivacyHandler_h__
40 : #define nsClipboardPrivacyHandler_h__
41 :
42 : #include "nsIObserver.h"
43 : #include "nsIPrivateBrowsingService.h"
44 : #include "nsWeakReference.h"
45 : #include "nsCOMPtr.h"
46 :
47 : class nsITransferable;
48 :
49 : // nsClipboardPrivacyHandler makes sure that clipboard data copied during
50 : // the private browsing mode does not leak after exiting this mode.
51 : // In order to ensure this, callers should store an object of this class
52 : // for their lifetime, and call PrepareDataForClipboard in their
53 : // nsIClipboard::SetData implementation before starting to use the
54 : // nsITransferable object in any way.
55 :
56 : class nsClipboardPrivacyHandler : public nsIObserver,
57 : public nsSupportsWeakReference
58 0 : {
59 :
60 : public:
61 :
62 : // nsISupports
63 : NS_DECL_ISUPPORTS
64 :
65 : // nsIObserver
66 : NS_DECL_NSIOBSERVER
67 :
68 : nsresult Init();
69 : nsresult PrepareDataForClipboard(nsITransferable * aTransferable);
70 :
71 : private:
72 :
73 : bool InPrivateBrowsing();
74 :
75 : nsCOMPtr<nsIPrivateBrowsingService> mPBService;
76 :
77 : };
78 :
79 : nsresult NS_NewClipboardPrivacyHandler(nsClipboardPrivacyHandler ** aHandler);
80 :
81 : #endif // nsClipboardPrivacyHandler_h__
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