/* -*- Mode: C++; 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
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Author: John Gaunt (jgaunt@netscape.com)
 *
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 * 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
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 * ***** END LICENSE BLOCK ***** */

#ifndef _nsXULTabAccessible_H_
#define _nsXULTabAccessible_H_

// NOTE: alphabetically ordered
#include "nsBaseWidgetAccessible.h"
#include "nsXULSelectAccessible.h"

/**
 * An individual tab, xul:tab element
 */
class nsXULTabAccessible : public nsLeafAccessible
{
public:
  enum { eAction_Switch = 0 };

  nsXULTabAccessible(nsIDOMNode* aNode, nsIWeakReference* aShell);

  // nsIAccessible
  NS_IMETHOD GetRole(PRUint32 *_retval); 
  NS_IMETHOD GetState(PRUint32 *aState, PRUint32 *aExtraState);
  NS_IMETHOD GetNumActions(PRUint8 *_retval);
  NS_IMETHOD GetActionName(PRUint8 aIndex, nsAString& aName);
  NS_IMETHOD DoAction(PRUint8 index);
  NS_IMETHOD GetAccessibleRelated(PRUint32 aRelationType,
                                  nsIAccessible **aRelatedAccessible);

  // nsAccessible
  virtual nsresult GetAttributesInternal(nsIPersistentProperties *aAttributes);
};

/** 
  * Contains a tabs object and a tabPanels object. A complete
  *    entity with relationships between tabs and content to
  *    be displayed in the tabpanels object
  */
class nsXULTabBoxAccessible : public nsAccessibleWrap
{
public:
  nsXULTabBoxAccessible(nsIDOMNode* aNode, nsIWeakReference* aShell);
  NS_IMETHOD GetRole(PRUint32 *_retval); 
};

/**
 * A container of tab obejcts, xul:tabs element.
 */
class nsXULTabsAccessible : public nsXULSelectableAccessible
{
public:
  nsXULTabsAccessible(nsIDOMNode* aNode, nsIWeakReference* aShell);
  NS_IMETHOD GetRole(PRUint32 *_retval);
  NS_IMETHOD GetNumActions(PRUint8 *_retval);
  NS_IMETHOD GetValue(nsAString& _retval);
  NS_IMETHOD GetName(nsAString& _retval);
};

/**
 * A tabpanel object, child elements of xul:tabpanels element. Note,the object
 * is created from nsAccessibilityService::GetAccessibleForDeckChildren()
 * method and we do not use nsIAccessibleProvider interface here because
 * all children of xul:tabpanels element acts as xul:tabpanel element.
 */
class nsXULTabpanelAccessible : public nsAccessibleWrap
{
public:
  nsXULTabpanelAccessible(nsIDOMNode *aNode, nsIWeakReference *aShell);

  // nsIAccessible
  NS_IMETHOD GetRole(PRUint32 *aRole);
  NS_IMETHOD GetAccessibleRelated(PRUint32 aRelationType,
                                  nsIAccessible **aRelatedAccessible);
};

#endif