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 * for the specific language governing rights and limitations under the
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 * The Original Code is mozilla.org code.
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 *   Original Author: David W. Hyatt (hyatt@netscape.com)
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/*

  The XUL "controllers" object.

*/

#ifndef nsXULControllers_h__
#define nsXULControllers_h__

#include "nsCOMPtr.h"
#include "nsTPtrArray.h"
#include "nsWeakPtr.h"
#include "nsIControllers.h"
#include "nsISecurityCheckedComponent.h"
#include "nsCycleCollectionParticipant.h"

/* non-XPCOM class for holding controllers and their IDs */
class nsXULControllerData
{
public:
                            nsXULControllerData(PRUint32 inControllerID, nsIController* inController)
                            : mControllerID(inControllerID)
                            , mController(inController)
                            {                            
                            }

                            ~nsXULControllerData() {}

    PRUint32                GetControllerID()   { return mControllerID; }

    nsresult                GetController(nsIController **outController)
                            {
                              NS_IF_ADDREF(*outController = mController);
                              return NS_OK;
                            }
    
    PRUint32                mControllerID;
    nsCOMPtr<nsIController> mController;
};


NS_IMETHODIMP NS_NewXULControllers(nsISupports* aOuter, REFNSIID aIID, void** aResult);

class nsXULControllers : public nsIControllers,
                         public nsISecurityCheckedComponent
{
public:
    friend NS_IMETHODIMP
    NS_NewXULControllers(nsISupports* aOuter, REFNSIID aIID, void** aResult);

    NS_DECL_CYCLE_COLLECTING_ISUPPORTS
    NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsXULControllers, nsIControllers)
    NS_DECL_NSICONTROLLERS
    NS_DECL_NSISECURITYCHECKEDCOMPONENT
  
protected:
    nsXULControllers();
    virtual ~nsXULControllers(void);

    void        DeleteControllers();

    nsTPtrArray<nsXULControllerData> mControllers;
    PRUint32                         mCurControllerID;
};




#endif // nsXULControllers_h__
