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#ifndef nsEditRules_h__
#define nsEditRules_h__

#define NS_IEDITRULES_IID \
{ /* a6cf911d-15b3-11d2-932e-00805f8add32 */ \
0xa6cf911d, 0x15b3, 0x11d2, \
{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32} }

class nsPlaintextEditor;
class nsISelection;

/***************************************************************************
 * base for an object to encapsulate any additional info needed to be passed
 * to rules system by the editor
 */
class nsRulesInfo
{
  public:
  
  nsRulesInfo(int aAction) : action(aAction) {}
  virtual ~nsRulesInfo() {}
  
  int action;
};

/***************************************************************************
 * Interface of editing rules.
 *  
 */
class nsIEditRules : public nsISupports
{
public:
  NS_DECLARE_STATIC_IID_ACCESSOR(NS_IEDITRULES_IID)
  
//Interfaces for addref and release and queryinterface
//NOTE: Use   NS_DECL_ISUPPORTS_INHERITED in any class inherited from nsIEditRules

  NS_IMETHOD Init(nsPlaintextEditor *aEditor, PRUint32 aFlags)=0;
  NS_IMETHOD BeforeEdit(PRInt32 action, nsIEditor::EDirection aDirection)=0;
  NS_IMETHOD AfterEdit(PRInt32 action, nsIEditor::EDirection aDirection)=0;
  NS_IMETHOD WillDoAction(nsISelection *aSelection, nsRulesInfo *aInfo, PRBool *aCancel, PRBool *aHandled)=0;
  NS_IMETHOD DidDoAction(nsISelection *aSelection, nsRulesInfo *aInfo, nsresult aResult)=0;
  NS_IMETHOD GetFlags(PRUint32 *aFlags)=0;
  NS_IMETHOD SetFlags(PRUint32 aFlags)=0;
  NS_IMETHOD DocumentIsEmpty(PRBool *aDocumentIsEmpty)=0;
};

NS_DEFINE_STATIC_IID_ACCESSOR(nsIEditRules, NS_IEDITRULES_IID)

#endif //nsEditRules_h__

