/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** 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 mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2007
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Alexander Surkov <surkov.alexander@gmail.com> (original author)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of 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 "nsIDOMXULElement.idl"
interface nsIDOMXULContainerElement;

[scriptable, uuid(4650e55f-4777-4271-8b62-9603a7dd4614)]
interface nsIDOMXULContainerItemElement : nsIDOMXULElement
{
  /**
   * Returns the parent container if any.
   */
  readonly attribute nsIDOMXULContainerElement parentContainer;
};

[scriptable, uuid(bc07c626-4294-43ae-9b0a-e726de0adcad)]
interface nsIDOMXULContainerElement : nsIDOMXULContainerItemElement
{
  /**
   * Creates an item for the given label and value and appends it to the
   * container.
   *
   * @param aLabel - the label for the new item
   * @param aValue - the value of the new item
   */
  nsIDOMXULElement appendItem(in DOMString aLabel, in DOMString aValue);

  /**
   * Creates an item for the given label and value and inserts it into the
   * container at the specified position.
   *
   * @param aIndex - the index where the new item will be inserted
   * @param aLabel - the label for the new item
   * @param aValue - the value of the new item
   */
  nsIDOMXULElement insertItemAt(in long aIndex, in DOMString aLabel,
                                in DOMString aValue);

  /**
   * Removes an item from the container.
   *
   * @param aIndex - index of the item to remove
   */
  nsIDOMXULElement removeItemAt(in long aIndex);

  /**
   * Returns a count of items in the container.
   */
  readonly attribute unsigned long itemCount;

  /**
   * Returns the index of an item or -1 if the item is not in the container.
   *
   * @param aItem - the item to determine the index of
   */
  long getIndexOfItem(in nsIDOMXULElement aItem);

  /**
   * Returns the item at a given index or null if the item is not is the
   * container.
   *
   * @param aIndex - the index of the item to return
   */
  nsIDOMXULElement getItemAtIndex(in long aIndex);
};