gecko/modules/libpr0n/decoders/icon/gtk/nsIconChannel.h

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2.9 KiB
C++

/* ***** 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 the Mozilla icon channel for gnome.
*
* The Initial Developer of the Original Code is
* Christian Biesinger <cbiesinger@web.de>.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* 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
* under the terms of either the GPL or the LGPL, and not to allow others to
* 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
* and other provisions required by the GPL or the LGPL. If you do not delete
* 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.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsIconChannel_h_
#define nsIconChannel_h_
#include "nsIChannel.h"
#include "nsIStreamListener.h"
#include "nsIURI.h"
#include "nsIIconURI.h"
#include "nsCOMPtr.h"
/**
* This class is the gnome implementation of nsIconChannel. It basically asks
* gtk/gnome for an icon, saves it as a tmp icon, and creates a new channel for
* that file to which all calls will be proxied.
*/
class nsIconChannel : public nsIChannel {
public:
NS_DECL_ISUPPORTS
NS_FORWARD_NSIREQUEST(mRealChannel->)
NS_FORWARD_NSICHANNEL(mRealChannel->)
nsIconChannel() {}
~nsIconChannel() {}
static void Shutdown();
/**
* Called by nsIconProtocolHandler after it creates this channel.
* Must be called before calling any other function on this object.
* If this method fails, no other function must be called on this object.
*/
NS_HIDDEN_(nsresult) Init(nsIURI* aURI);
private:
/**
* The channel to the temp icon file (e.g. to /tmp/2qy9wjqw.html).
* Will always be non-null after a successful Init.
*/
nsCOMPtr<nsIChannel> mRealChannel;
/**
* Called by Init if we need to use the gnomeui library.
*/
nsresult InitWithGnome(nsIMozIconURI *aURI);
};
#endif