/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * The contents of this file are subject to the Mozilla Public License Version
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 *
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 * 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.
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 * 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"),
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#ifndef _nsXULTabAccessible_H_
#define _nsXULTabAccessible_H_

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

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

  nsXULTabAccessible(nsIContent *aContent, nsIWeakReference *aShell);

  // nsIAccessible
  NS_IMETHOD GetNumActions(PRUint8 *_retval);
  NS_IMETHOD GetActionName(PRUint8 aIndex, nsAString& aName);
  NS_IMETHOD DoAction(PRUint8 index);
  NS_IMETHOD GetRelationByType(PRUint32 aRelationType,
                               nsIAccessibleRelation **aRelation);

  // nsAccessible
  virtual void GetPositionAndSizeInternal(PRInt32 *aPosInSet,
                                          PRInt32 *aSetSize);
  virtual PRUint32 NativeRole();
  virtual nsresult GetStateInternal(PRUint32 *aState, PRUint32 *aExtraState);
};


/**
 * A container of tab objects, xul:tabs element.
 */
class nsXULTabsAccessible : public nsXULSelectableAccessible
{
public:
  nsXULTabsAccessible(nsIContent *aContent, nsIWeakReference *aShell);

  // nsIAccessible
  NS_IMETHOD GetNumActions(PRUint8 *_retval);
  NS_IMETHOD GetValue(nsAString& _retval);

  // nsAccessible
  virtual nsresult GetNameInternal(nsAString& aName);
  virtual PRUint32 NativeRole();
};


/** 
 * A container of tab panels, xul:tabpanels element.
 */
class nsXULTabpanelsAccessible : public nsAccessibleWrap
{
public:
  nsXULTabpanelsAccessible(nsIContent *aContent, nsIWeakReference *aShell);

  // nsAccessible
  virtual PRUint32 NativeRole();
};


/**
 * 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.
 *
 * XXX: we need to move the class logic into generic class since
 * for example we do not create instance of this class for XUL textbox used as
 * a tabpanel.
 */
class nsXULTabpanelAccessible : public nsAccessibleWrap
{
public:
  nsXULTabpanelAccessible(nsIContent *aContent, nsIWeakReference *aShell);

  // nsIAccessible
  NS_IMETHOD GetRelationByType(PRUint32 aRelationType,
                               nsIAccessibleRelation **aRelation);

  // nsAccessible
  virtual PRUint32 NativeRole();
};

#endif

