/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla 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/MPL/
 *
 * 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 Geolocation.
 *
 * The Initial Developer of the Original Code is Mozilla Corporation
 * Portions created by the Initial Developer are Copyright (C) 2008
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *  Doug Turner <dougt@meer.net>  (Original Author)
 *
 * 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 MPL, 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 MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */



#include "nsISupports.idl"

interface nsIURI;
interface nsIDOMWindow;
interface nsIDOMGeoPosition;
interface nsIGeolocationPrompt;

/**
 * Interface allows access to a geolocation and is passed to
 * the nsIGeolocationPrompt so that the application can approve
 * or deny the request.
 */
[scriptable, function, uuid(D681C322-C075-4C6E-9765-C22711A4A60E)]
interface nsIGeolocationRequest : nsISupports {

  readonly attribute nsIURI requestingURI;
  readonly attribute nsIDOMWindow requestingWindow;

  void cancel();
  void allow();
  void allowButFuzz();
};

/**
 * Interface provides a way for the application to handle
 * the UI prompts associated with geo position.
 */
[scriptable, function, uuid(2300C895-1BEE-4297-912C-A57082F3E936)]
interface nsIGeolocationPrompt : nsISupports {
  /**
   * Called when a request has been made to access geolocation data
   */
  void prompt(in nsIGeolocationRequest request);
};

/** 
 * Interface provides a way for a geolocation provider to
 * notify the system that a new location is available.
 */
[scriptable, uuid(B89D7227-9F04-4236-A582-25A3F2779D72)]
interface nsIGeolocationUpdate : nsISupports {

  /**
   * Notify the geolocation service that a new geolocation
   * has been discovered.
   * This must be called on the main thread
   */
  void update(in nsIDOMGeoPosition position);
};


/**
 * Interface provides location information to the nsGeolocator
 * via the nsIDOMGeolocationCallback interface.  After
 * startup is called, any geo location change should call
 * callback.onRequest().
 */
[scriptable, uuid(E319BE2D-B1D1-4CA6-AEF4-66178589B63D)]
interface nsIGeolocationProvider : nsISupports {

  /**
   * Start up the provider.  This is called before any other
   * method.  may be called multiple times.
   */
  void startup();

  /**
   * Returns true when the devices is ready and has a
   * postion, otherwise false.
   */
   boolean isReady();

  /**
   * watch
   * When a location change is observed, notify the callback
   */
  void watch(in nsIGeolocationUpdate callback);

  /**
   * currentLocation return the current location as seen by
   * the provider.  may be null.
   */
  readonly attribute nsIDOMGeoPosition currentPosition;
  
  /**
   * shutdown
   * Shuts down the location devices.
   */
  void shutdown();
};

%{C++
/*  
    This must be implemented by geolocation providers.  It
    must support nsIGeolocationProvider.
*/
#define NS_GEOLOCATION_PROVIDER_CONTRACTID "@mozilla.org/geolocation/provider;1"

/*  
    This must be implemented by embedders.  It must support
    nsIGeolocationPrompt.
*/
#define NS_GEOLOCATION_PROMPT_CONTRACTID   "@mozilla.org/geolocation/prompt;1"
%}