gecko-dev/extensions/access-builtin/accessproxy/nsAccessProxy.h

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 * The Original Code is mozilla.org Code.
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 * The Initial Developer of the Original Code is
 * Aaron Leventhal.
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 * the Initial Developer. All Rights Reserved.
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/**
 * This file is the header of an implementation
 * nsAccessProxy of the nsIAccessProxy interface.
 */

#include "nsIAccessProxy.h"
#include "nsIDOMEventListener.h"
#include "nsIWebProgressListener.h"
#include "nsWeakReference.h"
#include "nsIObserver.h"
#include "nsIAppStartupNotifier.h"


/**
 * AccessProxy is an implementation of the nsIAccessProxy interface.  In XPCOM,
 * there can be more than one implementation of an given interface.  Class
 * IDs (CIDs) uniquely identify a particular implementation of an interface.
 * Interface IDs (IIDs) uniquely identify an interface.
 *
 * The CID is also a unique number that looks just like an IID
 * and uniquely identifies an implementation
 * {7CB5B7A0-07D7-11d3-BDE2-000064657374}
 */


class nsAccessProxy : public nsIDOMEventListener,
                      public nsIObserver,
                      public nsIWebProgressListener,
                      public nsSupportsWeakReference
{
public:
  nsAccessProxy();
  virtual ~nsAccessProxy();

  NS_DEFINE_STATIC_CID_ACCESSOR(NS_ACCESSPROXY_CID);

  NS_DECL_ISUPPORTS  // This macro expands into declaration of nsISupports interface
  NS_DECL_NSIOBSERVER
  NS_DECL_NSIWEBPROGRESSLISTENER

  //NS_DECL_NSIACCESSPROXY
  NS_IMETHOD HandleEvent(nsIDOMEvent *event);  

  static nsAccessProxy *GetInstance();
  static void ReleaseInstance(void);

private:
  static nsAccessProxy *mInstance;
};