/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is 
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * Contributor(s): ccarlen@netscape.com
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or 
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the NPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the NPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"

%{C++

   /**
    * nsIObserver topics for profile changing. Profile changing happens in phases
    * in the order given below. An observer may register separately for each phase
    * of the process depending on its needs. The subject passed to the observer's
    * Observe() method can be QI'd to an nsIProfileChangeStatus.
    *
    * "profile-approve-change"
    *   Called before a profile change is attempted. Typically,
    *   the application level observer will ask the user if
    *   he/she wants to stop all network activity, close all open
    *   windows, etc. If the user says NO, the observer should
    *   call the subject's vetoChange(). If any observer does
    *   this, the profile will not be changed.
    *
    * "profile-change-teardown"
    *   All async activity must be stopped in this phase. Typically,
    *   the application level observer will close all open windows. 
    *
    * "profile-before-change"
    *   Called before the profile has changed. Use this notification
    *   to prepare for the profile going away. If a component is
    *   holding any state which needs to be flushed to a profile-relative
    *   location, it should be done here.
    *
    * "profile-do-change"
    *   Called after the profile has changed. Do the work to
    *   respond to having a new profile. Any change which
    *   affects others must be done in this phase.
    *
    * "profile-after-change"
    *   Called after the profile has changed. Use this notification
    *   to make changes that are dependent on what some other listener
    *   did during its profile-do-change. For example, to respond to
    *   new preferences. 
    *
    *
    * Contexts for profile changes. These are passed as the someData param to the
    * observer's Observe() method.
    
    * "startup"
    *   Going from no profile to a profile.
    *
    *   The following topics happen in this context:
    *       profile-do-change
    *       profile-after-change
    *
    * "shutdown-persist"
    *   The user is logging out and whatever data the observer stores
    *   for the current profile should be released from memory and
    *   saved to disk.
    *
    * "shutdown-cleanse"
    *   The user is logging out and whatever data the observer stores
    *   for the current profile should be released from memory and
    *   deleted from disk.
    *
    *   The following topics happen in both shutdown contexts:
    *       profile-approve-change
    *       profile-change-teardown
    *       profile-before-change
    *
    * "switch"
    *   Going from one profile to another.
    *
    *   All of the above topics happen in a profile switch.
    *
    */  
%}


[scriptable, uuid(2f977d43-5485-11d4-87e2-0010a4e75ef2)]
interface nsIProfileChangeStatus : nsISupports {
        
    void vetoChange();

};

#endif /* nsIProfileChangeStatus_h__ */