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nsSubscribableServer.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   Seth Spitzer <sspitzer@netscape.com>
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either of the GNU General Public License Version 2 or later (the "GPL"),
00027  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
00029  * of those above. If you wish to allow use of your version of this file only
00030  * under the terms of either the GPL or the LGPL, and not to allow others to
00031  * use your version of this file under the terms of the MPL, indicate your
00032  * decision by deleting the provisions above and replace them with the notice
00033  * and other provisions required by the GPL or the LGPL. If you do not delete
00034  * the provisions above, a recipient may use your version of this file under
00035  * the terms of any one of the MPL, the GPL or the LGPL.
00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #ifndef nsSubscribableServer_h__
00040 #define nsSubscribableServer_h__
00041 
00042 #include "nsCOMPtr.h"
00043 #include "nsISubscribableServer.h"
00044 #include "nsIMsgIncomingServer.h"
00045 #include "nsIRDFService.h"
00046 #include "nsSubscribeDataSource.h"
00047 #include "nsIRDFResource.h"
00048 #include "nsString.h"
00049 
00050 typedef struct _subscribeTreeNode {
00051   char *name;
00052   PRBool isSubscribed;
00053   struct _subscribeTreeNode *prevSibling;
00054   struct _subscribeTreeNode *nextSibling;
00055   struct _subscribeTreeNode *firstChild;
00056   struct _subscribeTreeNode *lastChild;
00057   struct _subscribeTreeNode *parent;
00058   struct _subscribeTreeNode *cachedChild;
00059 #ifdef HAVE_SUBSCRIBE_DESCRIPTION
00060   PRUnichar *description;
00061 #endif
00062 #ifdef HAVE_SUBSCRIBE_MESSAGES
00063   PRUint32 messages;
00064 #endif
00065   PRBool isSubscribable;
00066 } SubscribeTreeNode;
00067 
00068 #if defined(DEBUG_sspitzer) || defined(DEBUG_seth)
00069 #define DEBUG_SUBSCRIBE 1
00070 #endif
00071 
00072 class nsSubscribableServer : public nsISubscribableServer
00073 {
00074  public:
00075   nsSubscribableServer();
00076   virtual ~nsSubscribableServer();
00077 
00078   nsresult Init();
00079 
00080   NS_DECL_ISUPPORTS
00081   NS_DECL_NSISUBSCRIBABLESERVER
00082   
00083 private:
00084   nsresult ConvertNameToUnichar(const char *inStr, PRUnichar **outStr);
00085   nsCOMPtr <nsISubscribeListener> mSubscribeListener;
00086   nsCOMPtr <nsIMsgIncomingServer> mIncomingServer;
00087   nsCOMPtr <nsISubscribeDataSource> mSubscribeDS;
00088   char mDelimiter;
00089   PRBool mShowFullName;
00090   PRBool mStopped;
00091 
00092   nsCOMPtr <nsIRDFResource>      kNC_Child;
00093   nsCOMPtr <nsIRDFResource>      kNC_Subscribed;
00094   nsCOMPtr <nsIRDFLiteral>       kTrueLiteral;
00095   nsCOMPtr <nsIRDFLiteral>       kFalseLiteral;
00096 
00097   nsCOMPtr <nsIRDFService>       mRDFService;
00098 
00099   SubscribeTreeNode *mTreeRoot;
00100   nsresult FreeSubtree(SubscribeTreeNode *node);
00101   nsresult CreateNode(SubscribeTreeNode *parent, const char *name, SubscribeTreeNode **result);
00102   nsresult AddChildNode(SubscribeTreeNode *parent, const char *name, SubscribeTreeNode **child);
00103   nsresult FindAndCreateNode(const nsACString &aPath,
00104                              SubscribeTreeNode **aResult);
00105   nsresult NotifyAssert(SubscribeTreeNode *subjectNode, nsIRDFResource *property, SubscribeTreeNode *objectNode);
00106   nsresult NotifyChange(SubscribeTreeNode *subjectNode, nsIRDFResource *property, PRBool value);
00107   nsresult Notify(nsIRDFResource *subject, nsIRDFResource *property, nsIRDFNode *object, PRBool isAssert, PRBool isChange);
00108   void BuildURIFromNode(SubscribeTreeNode *node, nsACString &uri);
00109   nsresult EnsureSubscribeDS();
00110   nsresult EnsureRDFService();
00111 };
00112 
00113 #endif // nsSubscribableServer_h__