extensions/access-builtin/accessproxy/nsAccessProxy.h

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  18  * The Initial Developer of the Original Code is
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  38
  39 /**
  40  * This file is the header of an implementation
  41  * nsAccessProxy of the nsIAccessProxy interface.
  42  */
  43
  44 #include "nsIAccessProxy.h"
  45 #include "nsIDOMEventListener.h"
  46 #include "nsIWebProgressListener.h"
  47 #include "nsWeakReference.h"
  48 #include "nsIObserver.h"
  49 #include "nsIAppStartupNotifier.h"
  50
  51
  52 /**
  53  * AccessProxy is an implementation of the nsIAccessProxy interface.  In XPCOM,
  54  * there can be more than one implementation of an given interface.  Class
  55  * IDs (CIDs) uniquely identify a particular implementation of an interface.
  56  * Interface IDs (IIDs) uniquely identify an interface.
  57  *
  58  * The CID is also a unique number that looks just like an IID
  59  * and uniquely identifies an implementation
  60  * {7CB5B7A0-07D7-11d3-BDE2-000064657374}
  61  */
  62
  63
  64 class nsAccessProxy : public nsIDOMEventListener,
  65                       public nsIObserver,
  66                       public nsIWebProgressListener,
  67                       public nsSupportsWeakReference
  68 {
  69 public:
  70   nsAccessProxy();
  71   virtual ~nsAccessProxy();
  72
  73   NS_DEFINE_STATIC_CID_ACCESSOR(NS_ACCESSPROXY_CID);
  74
  75   NS_DECL_ISUPPORTS  // This macro expands into declaration of nsISupports interface
  76   NS_DECL_NSIOBSERVER
  77   NS_DECL_NSIWEBPROGRESSLISTENER
  78
  79   //NS_DECL_NSIACCESSPROXY
  80   NS_IMETHOD HandleEvent(nsIDOMEvent *event);
  81
  82   static nsAccessProxy *GetInstance();
  83   static void ReleaseInstance(void);
  84
  85 private:
  86   static nsAccessProxy *mInstance;
  87 };