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lightning-sunbird  0.9+nobinonly
nsSystemPrefService.h
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00004 /* ***** BEGIN LICENSE BLOCK *****
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00008  * The contents of this file are subject to the Mozilla Public
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00013  * Software distributed under the License is distributed on an "AS
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00018  * The Original Code is mozilla.org code.
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00020  * The Initial Developer of the Original Code is Sun Microsystems, Inc.
00021  * Portions created by Sun Microsystems are Copyright (C) 2003 Sun
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00023  *
00024  * Original Author: Bolian Yin (bolian.yin@sun.com)
00025  *
00026  * Contributor(s):
00027  *
00028  * Alternatively, the contents of this file may be used under the terms of
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00041 
00042 #ifndef __SYSTEM_PREF_SERVICE_H__
00043 #define __SYSTEM_PREF_SERVICE_H__
00044 
00045 #include "prlink.h"
00046 #include "nsVoidArray.h"
00047 #include "nsWeakPtr.h"
00048 #include "nsIPrefBranch.h"
00049 #include "nsIPrefBranch2.h"
00050 
00051 class GConfProxy;
00052 
00054 // nsSystemPrefService provide a interface for read system prefs. It is
00055 // platform related. This directory (system-pref/gconf) impls it for gconf
00056 // on the gconf platform.
00058 
00059 class nsSystemPrefService : public nsIPrefBranch2
00060 {
00061 public:
00062     NS_DECL_ISUPPORTS
00063     NS_DECL_NSIPREFBRANCH
00064     NS_DECL_NSIPREFBRANCH2
00065 
00066     nsSystemPrefService();
00067     virtual ~nsSystemPrefService();
00068     nsresult Init();
00069 
00070     void OnPrefChange(PRUint32 aPrefAtom, void *aData);
00071 
00072 private:
00073     PRBool mInitialized;
00074     GConfProxy *mGConf;
00075 
00076     //listeners
00077     nsAutoVoidArray *mObservers;
00078 };
00079 
00080 #define NS_SYSTEMPREF_SERVICE_CID                  \
00081   { /* {94f1de09-d0e5-4ca8-94c2-98b049316b7f} */       \
00082     0x94f1de09,                                        \
00083     0xd0e5,                                            \
00084     0x4ca8,                                            \
00085     { 0x94, 0xc2, 0x98, 0xb0, 0x49, 0x31, 0x6b, 0x7f } \
00086   }
00087 
00088 #define NS_SYSTEMPREF_SERVICE_CONTRACTID "@mozilla.org/system-preference-service;1"
00089 #define NS_SYSTEMPREF_SERVICE_CLASSNAME "System Preferences Service"
00090 
00091 #define NS_SYSTEMPREF_PREFCHANGE_TOPIC_ID "nsSystemPrefService:pref-changed"
00092 
00093 #endif  /* __SYSTEM_PREF_SERVICE_H__ */