/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

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 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
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 * the Initial Developer. All Rights Reserved.
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 *
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#ifndef nsIOptionElement_h___
#define nsIOptionElement_h___

#include "nsISupports.h"

// IID for the nsIOption interface
#define NS_IOPTIONELEMENT_IID    \
{ 0xd49fe03a, 0x1dd1, 0x11b2,    \
  { 0xa0, 0xe0, 0x83, 0x66, 0x76, 0x19, 0xaf, 0x69 } }

/**
 * This interface is used to notify a SELECT when OPTION
 * elements are added and removed from its subtree.
 * Note that the nsIDOMHTMLSelectElement and nsIContent
 * interfaces are the ones to use to access and enumerate
 * OPTIONs within a SELECT element.
 */
class nsIOptionElement : public nsISupports {
public:

  NS_DECLARE_STATIC_IID_ACCESSOR(NS_IOPTIONELEMENT_IID)

  /**
   * Select the option element from its own point of view.  This should only be
   * used by SelectElement, really.  Everyone else is safe using GetSelected()
   * on the DOMHTMLOptionElement, which goes through the <select> to make sure
   * everything gets updated correctly.
   */
  NS_IMETHOD SetSelectedInternal(PRBool aValue, PRBool aNotify) = 0;
};

NS_DEFINE_STATIC_IID_ACCESSOR(nsIOptionElement, NS_IOPTIONELEMENT_IID)

#endif // nsIOptionElement_h___

