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lightning-sunbird  0.9+nobinonly
nsMsgRDFDataSource.h
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00037 
00038 
00039 #ifndef __nsMsgRDFDataSource_h
00040 #define __nsMsgRDFDataSource_h
00041 
00042 #include "nsCOMPtr.h"
00043 #include "nsIRDFDataSource.h"
00044 #include "nsIRDFService.h"
00045 #include "nsIServiceManager.h"
00046 #include "nsISupportsArray.h"
00047 #include "nsIObserver.h"
00048 #include "nsITransactionManager.h"
00049 #include "nsIMsgWindow.h"
00050 #include "nsIMsgRDFDataSource.h"
00051 #include "nsWeakReference.h"
00052 
00053 class nsMsgRDFDataSource : public nsIRDFDataSource,
00054                            public nsIObserver,
00055                            public nsSupportsWeakReference,
00056                            public nsIMsgRDFDataSource
00057 {
00058  public:
00059   nsMsgRDFDataSource();
00060   virtual ~nsMsgRDFDataSource();
00061   virtual nsresult Init();
00062   
00063   NS_DECL_ISUPPORTS
00064   NS_DECL_NSIMSGRDFDATASOURCE
00065   NS_DECL_NSIRDFDATASOURCE
00066   NS_DECL_NSIOBSERVER
00067 
00068   // called to reset the datasource to an empty state
00069   // if you need to release yourself as an observer/listener, do it here
00070   virtual void Cleanup();
00071 
00072  protected:
00073   nsIRDFService *getRDFService();
00074   static PRBool assertEnumFunc(nsISupports *aElement, void *aData);
00075   static PRBool unassertEnumFunc(nsISupports *aElement, void *aData);
00076   static PRBool changeEnumFunc(nsISupports *aElement, void *aData);
00077   nsresult  NotifyObservers(nsIRDFResource *subject, nsIRDFResource *property,
00078                             nsIRDFNode *newObject, nsIRDFNode *oldObject, 
00079                             PRBool assert, PRBool change);
00080 
00081   virtual nsresult NotifyPropertyChanged(nsIRDFResource *resource, 
00082                     nsIRDFResource *propertyResource, nsIRDFNode *newNode, 
00083                     nsIRDFNode *oldNode = nsnull);
00084   nsresult GetTransactionManager(nsISupportsArray *sources, nsITransactionManager **aTransactionManager);
00085 
00086   nsCOMPtr<nsIMsgWindow> mWindow;
00087 
00088   PRBool m_shuttingDown;
00089   PRBool mInitialized;
00090 
00091  private:
00092   nsCOMPtr<nsIRDFService> mRDFService;
00093   nsCOMPtr<nsISupportsArray> mObservers;
00094 
00095 };
00096 
00097 #endif