gecko/accessible/src/xul/nsXULMenuAccessible.h

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 * The Original Code is mozilla.org code.
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 *   Author: Aaron Leventhal (aaronl@netscape.com)
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#ifndef _nsXULMenuAccessible_H_
#define _nsXULMenuAccessible_H_

#include "nsAccessibleWrap.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(nsIContent *aContent, 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;
};

/**
 * Used for XUL menu, menuitem elements.
 */
class nsXULMenuitemAccessible : public nsAccessibleWrap
{
public:
  enum { eAction_Click = 0 };

  nsXULMenuitemAccessible(nsIContent *aContent, 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 PRInt32 GetLevelInternal();
  virtual void GetPositionAndSizeInternal(PRInt32 *aPosInSet,
                                          PRInt32 *aSetSize);

  virtual PRBool GetAllowsAnonChildAccessibles();
};

/**
 * Used for XUL menuseparator element.
 */
class nsXULMenuSeparatorAccessible : public nsXULMenuitemAccessible
{
public:
  nsXULMenuSeparatorAccessible(nsIContent *aContent, 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);
};


/**
 * Used for XUL menupopup and panel.
 */
class nsXULMenupopupAccessible : public nsXULSelectableAccessible
{
public:
  nsXULMenupopupAccessible(nsIContent *aContent, nsIWeakReference *aShell);

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

/**
 * Used for XUL menubar element.
 */
class nsXULMenubarAccessible : public nsAccessibleWrap
{
public:
  nsXULMenubarAccessible(nsIContent *aContent, nsIWeakReference *aShell);

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

#endif