1 : /* ***** BEGIN LICENSE BLOCK *****
2 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
3 : *
4 : * The contents of this file are subject to the Mozilla Public License Version
5 : * 1.1 (the "License"); you may not use this file except in compliance with
6 : * the License. You may obtain a copy of the License at
7 : * http://www.mozilla.org/MPL/
8 : *
9 : * Software distributed under the License is distributed on an "AS IS" basis,
10 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11 : * for the specific language governing rights and limitations under the
12 : * License.
13 : *
14 : * The Original Code is the Mozilla icon channel for gnome.
15 : *
16 : * The Initial Developer of the Original Code is
17 : * Christian Biesinger <cbiesinger@web.de>.
18 : * Portions created by the Initial Developer are Copyright (C) 2004
19 : * the Initial Developer. All Rights Reserved.
20 : *
21 : * Contributor(s):
22 : *
23 : * Alternatively, the contents of this file may be used under the terms of
24 : * either the GNU General Public License Version 2 or later (the "GPL"), or
25 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
26 : * in which case the provisions of the GPL or the LGPL are applicable instead
27 : * of those above. If you wish to allow use of your version of this file only
28 : * under the terms of either the GPL or the LGPL, and not to allow others to
29 : * use your version of this file under the terms of the MPL, indicate your
30 : * decision by deleting the provisions above and replace them with the notice
31 : * and other provisions required by the GPL or the LGPL. If you do not delete
32 : * the provisions above, a recipient may use your version of this file under
33 : * the terms of any one of the MPL, the GPL or the LGPL.
34 : *
35 : * ***** END LICENSE BLOCK ***** */
36 :
37 : #ifndef nsIconChannel_h_
38 : #define nsIconChannel_h_
39 :
40 : #include "mozilla/Attributes.h"
41 :
42 : #include "nsIChannel.h"
43 : #include "nsIStreamListener.h"
44 : #include "nsIURI.h"
45 : #include "nsIIconURI.h"
46 : #include "nsCOMPtr.h"
47 :
48 : /**
49 : * This class is the gnome implementation of nsIconChannel. It basically asks
50 : * gtk/gnome for an icon, saves it as a tmp icon, and creates a new channel for
51 : * that file to which all calls will be proxied.
52 : */
53 : class nsIconChannel MOZ_FINAL : public nsIChannel {
54 : public:
55 : NS_DECL_ISUPPORTS
56 0 : NS_FORWARD_NSIREQUEST(mRealChannel->)
57 0 : NS_FORWARD_NSICHANNEL(mRealChannel->)
58 :
59 0 : nsIconChannel() {}
60 0 : ~nsIconChannel() {}
61 :
62 : static void Shutdown();
63 :
64 : /**
65 : * Called by nsIconProtocolHandler after it creates this channel.
66 : * Must be called before calling any other function on this object.
67 : * If this method fails, no other function must be called on this object.
68 : */
69 : NS_HIDDEN_(nsresult) Init(nsIURI* aURI);
70 : private:
71 : /**
72 : * The channel to the temp icon file (e.g. to /tmp/2qy9wjqw.html).
73 : * Will always be non-null after a successful Init.
74 : */
75 : nsCOMPtr<nsIChannel> mRealChannel;
76 :
77 : /**
78 : * Called by Init if we need to use the gnomeui library.
79 : */
80 : nsresult InitWithGnome(nsIMozIconURI *aURI);
81 : nsresult InitWithGIO(nsIMozIconURI *aIconURI);
82 : };
83 :
84 : #endif
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