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nsExternalProtocolHandler.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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00011  * Software distributed under the License is distributed on an "AS IS" basis,
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00016  * The Original Code is mozilla.org Code.
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00023  * Contributor(s):
00024  *   Scott MacGregor <mscott@netscape.com>
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00026  * Alternatively, the contents of this file may be used under the terms of
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00039 
00040 #ifndef nsExternalProtocolHandler_h___
00041 #define nsExternalProtocolHandler_h___
00042 
00043 #include "nsIExternalProtocolHandler.h"
00044 #include "nsCOMPtr.h"
00045 #include "nsString.h"
00046 #include "nsWeakReference.h"
00047 #include "nsIExternalProtocolService.h"
00048 
00049 class nsIURI;
00050 
00051 // protocol handlers need to support weak references if we want the netlib nsIOService to cache them.
00052 class nsExternalProtocolHandler : public nsIExternalProtocolHandler, public nsSupportsWeakReference
00053 {
00054 public:
00055        NS_DECL_ISUPPORTS
00056        NS_DECL_NSIPROTOCOLHANDLER
00057        NS_DECL_NSIEXTERNALPROTOCOLHANDLER
00058 
00059        nsExternalProtocolHandler();
00060        ~nsExternalProtocolHandler();
00061 
00062 protected:
00063   // helper function
00064   PRBool HaveProtocolHandler(nsIURI * aURI);
00065        nsCString     m_schemeName;
00066   nsCOMPtr<nsIExternalProtocolService> m_extProtService;
00067 };
00068 
00069 class nsBlockedExternalProtocolHandler: public nsExternalProtocolHandler
00070 {
00071 public:
00072   nsBlockedExternalProtocolHandler();
00073   NS_IMETHOD NewChannel(nsIURI *aURI, nsIChannel **_retval);
00074 };
00075 
00076 #endif // nsExternalProtocolHandler_h___
00077