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#include "nsISupports.idl"

[scriptable, uuid(D5B61B82-1DA4-11d3-BF87-00105A1B0627)]
interface nsIController : nsISupports {
	boolean isCommandEnabled(in string command);
	boolean supportsCommand(in string command);

	void doCommand(in string command);

	void onEvent(in string eventName);
};


/*

  Enhanced controller interface that allows for passing of parameters
  to commands.
  
*/

interface nsICommandParams;

[scriptable, uuid(EBE55080-C8A9-11D5-A73C-DD620D6E04BC)]
interface nsICommandController : nsISupports
{
  
  void        getCommandStateWithParams( in string command, in nsICommandParams aCommandParams);
    
  void        doCommandWithParams(in string command, in nsICommandParams aCommandParams);

};


/*
  An API for registering commands in groups, to allow for 
  updating via nsIDOMWindowInternal::UpdateCommands.
*/
interface nsISimpleEnumerator;

[scriptable, uuid(9F82C404-1C7B-11D5-A73C-ECA43CA836FC)]
interface nsIControllerCommandGroup : nsISupports
{

  void  addCommandToGroup(in string aCommand, in string aGroup);
  void  removeCommandFromGroup(in string aCommand, in string aGroup);
  
  boolean isCommandInGroup(in string aCommand, in string aGroup);

  /*
    We should expose some methods that allow for enumeration.
  */
  nsISimpleEnumerator getGroupsEnumerator();
  
  nsISimpleEnumerator getEnumeratorForGroup(in string aGroup);

};