/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/*

  The XUL "controllers" object.

*/

#ifndef nsXULControllers_h__
#define nsXULControllers_h__

#include "nsCOMPtr.h"
#include "nsTArray.h"
#include "nsWeakPtr.h"
#include "nsIControllers.h"
#include "nsCycleCollectionParticipant.h"

/* non-XPCOM class for holding controllers and their IDs */
class nsXULControllerData {
 public:
  nsXULControllerData(uint32_t inControllerID, nsIController* inController)
      : mControllerID(inControllerID), mController(inController) {}

  ~nsXULControllerData() {}

  uint32_t GetControllerID() { return mControllerID; }

  nsresult GetController(nsIController** outController) {
    NS_IF_ADDREF(*outController = mController);
    return NS_OK;
  }

  uint32_t mControllerID;
  nsCOMPtr<nsIController> mController;
};

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

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

  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsXULControllers, nsIControllers)
  NS_DECL_NSICONTROLLERS

 protected:
  nsXULControllers();
  virtual ~nsXULControllers(void);

  void DeleteControllers();

  nsTArray<nsXULControllerData*> mControllers;
  uint32_t mCurControllerID;
};

#endif  // nsXULControllers_h__