/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * 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):
 *
 * 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
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 * use your version of this file under the terms of the MPL, indicate your
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 * ***** END LICENSE BLOCK ***** */

#ifndef nsIMenuItem_h__
#define nsIMenuItem_h__

#include "prtypes.h"
#include "nsISupports.h"
#include "nsString.h"

#include "nsIDOMElement.h"

// 7DF81BE2-51F4-4CAA-9FD7-3F974A7AEA51
#define NS_IMENUITEM_IID \
{ 0x7DF81BE2, 0x51F4, 0x4CAA, \
  { 0x9F, 0xD7, 0x3F, 0x97, 0x4A, 0x7A, 0xEA, 0x51 } }

class nsIMenu;
class nsIWidget;
class nsIMenuListener;
class nsIChangeManager;
class nsIContent;

enum {
  knsMenuItemNoModifier      = 0,
  knsMenuItemShiftModifier   = (1 << 0),
  knsMenuItemAltModifier     = (1 << 1),
  knsMenuItemControlModifier = (1 << 2),
  knsMenuItemCommandModifier = (1 << 3)
};

/**
 * MenuItem widget
 */
class nsIMenuItem : public nsISupports {

  public:
    NS_DECLARE_STATIC_IID_ACCESSOR(NS_IMENUITEM_IID)

    enum EMenuItemType { eRegular = 0, eCheckbox, eRadio, eSeparator} ;

   /**
    * Creates the MenuItem
    *
    */
    NS_IMETHOD Create(nsIMenu* aParent, const nsString & aLabel, EMenuItemType aItemType,
                      nsIChangeManager* aManager, nsIContent* aNode) = 0;

   /**
    * Get the MenuItem label
    *
    */
    NS_IMETHOD GetLabel(nsString &aText) = 0;

   /**
    * Set the Menu shortcut char
    *
    */
    NS_IMETHOD SetShortcutChar(const nsString &aText) = 0;
  
    /**
    * Get the Menu shortcut char
    *
    */
    NS_IMETHOD GetShortcutChar(nsString &aText) = 0;

   /**
    * Gets whether the item is enabled or disabled
    *
    */
    NS_IMETHOD GetEnabled(PRBool *aIsEnabled) = 0;

   /**
    * Sets whether the item is checked or not
    *
    */
    NS_IMETHOD SetChecked(PRBool aIsEnabled) = 0;

   /**
    * Gets whether the item is checked or not
    *
    */
    NS_IMETHOD GetChecked(PRBool *aIsEnabled) = 0;

   /**
    * Gets whether the item is a checkbox or radio
    *
    */
    NS_IMETHOD GetMenuItemType(EMenuItemType *aType) = 0;
    
   /**
    * Gets Native Menu Handle
    *
    */
    NS_IMETHOD GetNativeData(void*& aData) = 0;

   /**
    * Adds menu listener
    *
    */
    NS_IMETHOD AddMenuListener(nsIMenuListener * aMenuListener) = 0;

   /**
    * Removes menu listener
    *
    */
    NS_IMETHOD RemoveMenuListener(nsIMenuListener * aMenuListener) = 0;

   /**
    * Indicates whether it is a separator
    *
    */
    NS_IMETHOD IsSeparator(PRBool & aIsSep) = 0;

   /**
    * Executes the "cached" JavaScript Command 
    * @return NS_OK if the command was executed properly, otherwise an error code
    */
    NS_IMETHOD DoCommand() = 0;
    
    /**
     * Sends a DOM event to the menu item's content node 
     * @return NS_OK if the event was sent properly, otherwise an error code
     */
    NS_IMETHOD DispatchDOMEvent(const nsString &eventName, PRBool *preventDefaultCalled) = 0;

    /**
    *
    */
    NS_IMETHOD SetModifiers(PRUint8 aModifiers) = 0;
    NS_IMETHOD GetModifiers(PRUint8 * aModifiers) = 0;

   /**
    * Sets an appropriate icon for the menu item.
    */
    NS_IMETHOD SetupIcon() = 0;

    /**
     * Get GetMenuItemContent
     *
     */
    NS_IMETHOD GetMenuItemContent(nsIContent ** aMenuItemContent) = 0;
};

NS_DEFINE_STATIC_IID_ACCESSOR(nsIMenuItem, NS_IMENUITEM_IID)

#endif
