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nsXULMenuAccessible.h

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 * The Initial Developer of the Original Code is
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 * Contributor(s):
 *   Author: Aaron Leventhal (aaronl@netscape.com)
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#ifndef _nsXULMenuAccessible_H_
#define _nsXULMenuAccessible_H_

#include "nsAccessibleWrap.h"
#include "nsAccessibleTreeWalker.h"
#include "nsIAccessibleSelectable.h"
#include "nsIDOMXULSelectCntrlEl.h"

/*
 * The basic implementation of nsIAccessibleSelectable.
 */
class nsXULSelectableAccessible : public nsAccessibleWrap
{
public:
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_NSIACCESSIBLESELECTABLE

  nsXULSelectableAccessible(nsIDOMNode* aDOMNode, nsIWeakReference* aShell);
  virtual ~nsXULSelectableAccessible() {}

  // nsAccessNode
  virtual nsresult Shutdown();

protected:
  nsresult ChangeSelection(PRInt32 aIndex, PRUint8 aMethod, PRBool *aSelState);

  // nsIDOMXULMultiSelectControlElement inherits from this, so we'll always have
  // one of these if the widget is valid and not defunct
  nsCOMPtr<nsIDOMXULSelectControlElement> mSelectControl;
};

/* Accessible for supporting XUL menus
 */

class nsXULMenuitemAccessible : public nsAccessibleWrap
{
public:
  enum { eAction_Click = 0 };

  nsXULMenuitemAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell);

  // nsIAccessible
  NS_IMETHOD GetDescription(nsAString& aDescription);
  NS_IMETHOD GetKeyboardShortcut(nsAString& _retval);
  NS_IMETHOD GetDefaultKeyBinding(nsAString& aKeyBinding);
  NS_IMETHOD DoAction(PRUint8 index);
  NS_IMETHOD GetActionName(PRUint8 aIndex, nsAString& aName);
  NS_IMETHOD GetNumActions(PRUint8 *_retval);

  // nsAccessNode
  virtual nsresult Init();

  // nsAccessible
  virtual nsresult GetNameInternal(nsAString& aName);
  virtual nsresult GetRoleInternal(PRUint32 *aRole);
  virtual nsresult GetStateInternal(PRUint32 *aState, PRUint32 *aExtraState);
  virtual nsresult GetAttributesInternal(nsIPersistentProperties *aAttributes);

  virtual PRBool GetAllowsAnonChildAccessibles();
};

class nsXULMenuSeparatorAccessible : public nsXULMenuitemAccessible
{
public:
  nsXULMenuSeparatorAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell);

  // nsIAccessible
  NS_IMETHOD DoAction(PRUint8 index);
  NS_IMETHOD GetActionName(PRUint8 aIndex, nsAString& aName);
  NS_IMETHOD GetNumActions(PRUint8 *_retval);

  // nsAccessible
  virtual nsresult GetNameInternal(nsAString& aName);
  virtual nsresult GetRoleInternal(PRUint32 *aRole);
  virtual nsresult GetStateInternal(PRUint32 *aState, PRUint32 *aExtraState);
};

class nsXULMenupopupAccessible : public nsXULSelectableAccessible
{
public:
  nsXULMenupopupAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell);

  // nsAccessible
  virtual nsresult GetNameInternal(nsAString& aName);
  virtual nsresult GetRoleInternal(PRUint32 *aRole);
  virtual nsresult GetStateInternal(PRUint32 *aState, PRUint32 *aExtraState);

  // nsXULMenupopupAccessible
  static already_AddRefed<nsIDOMNode> FindInNodeList(nsIDOMNodeList *aNodeList,
                                                     nsIAtom *aAtom, PRUint32 aNameSpaceID);
  static void GenerateMenu(nsIDOMNode *aNode);
};

class nsXULMenubarAccessible : public nsAccessibleWrap
{
public:
  nsXULMenubarAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell);

  // nsAccessible
  virtual nsresult GetNameInternal(nsAString& aName);
  virtual nsresult GetRoleInternal(PRUint32 *aRole);
  virtual nsresult GetStateInternal(PRUint32 *aState, PRUint32 *aExtraState);
};

#endif  

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