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#ifndef _nsIFrameRootAccessible_H_
#define _nsIFrameRootAccessible_H_

#include "nsBaseWidgetAccessible.h"
#include "nsRootAccessible.h"
#include "nsAccessible.h"
#include "nsIAccessibleDocument.h"

class nsIWebShell;
class nsIWeakReference;

class nsHTMLIFrameAccessible : public nsBlockAccessible, 
                               public nsIAccessibleDocument,
                               public nsDocAccessibleMixin
{
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_NSIACCESSIBLEDOCUMENT

  public:
    nsHTMLIFrameAccessible(nsIDOMNode* aNode, nsIAccessible* aRoot, nsIWeakReference* aShell, nsIDocument *doc);

    NS_IMETHOD GetAccFirstChild(nsIAccessible **_retval);
    NS_IMETHOD GetAccLastChild(nsIAccessible **_retval);
    NS_IMETHOD GetAccChildCount(PRInt32 *_retval);
    NS_IMETHOD GetAccName(nsAWritableString& aAccName);
    NS_IMETHOD GetAccValue(nsAWritableString& AccValue);
    NS_IMETHOD GetAccRole(PRUint32 *aAccRole);
    NS_IMETHOD GetAccState(PRUint32 *aAccState);

  protected:
    nsCOMPtr<nsIAccessible> mRootAccessible;
};

class nsHTMLIFrameRootAccessible : public nsRootAccessible
{
  NS_DECL_ISUPPORTS_INHERITED

  public:
    nsHTMLIFrameRootAccessible(nsIDOMNode* aNode, nsIWeakReference* aShell);
    virtual ~nsHTMLIFrameRootAccessible();

    /* attribute wstring accName; */
    NS_IMETHOD GetAccParent(nsIAccessible * *aAccParent);

    /* nsIAccessible getAccNextSibling (); */
    NS_IMETHOD GetAccNextSibling(nsIAccessible **_retval);

    /* nsIAccessible getAccPreviousSibling (); */
    NS_IMETHOD GetAccPreviousSibling(nsIAccessible **_retval);

  protected:
    void Init();

    // In these variable names, "outer" relates to the nsHTMLIFrameAccessible, as opposed to the 
    // nsHTMLIFrameRootAccessible which is "inner".
    // The outer node is a <browser> or <iframe> tag, whereas the inner node corresponds to the inner document root.

    nsCOMPtr<nsIDOMNode> mOuterNode;
    nsCOMPtr<nsIAccessible> mOuterAccessible;
};


#endif  
