pjs/content/xul/document/public/nsIControllerCommand.idl

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape Public License
* Version 1.1 (the "License"); you may not use this file except in
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* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* ***** END LICENSE BLOCK ***** */
#include "nsISupports.idl"
/**
* nsIControllerCommand
*
* A generic command interface. You can register an nsIControllerCommand
* with the nsIControllerCommandManager.
*/
[scriptable, uuid(0eae9a46-1dd2-11b2-aca0-9176f05fe9db)]
interface nsIControllerCommand : nsISupports
{
/**
* Returns true if the command is currently enabled. An nsIControllerCommand
* can implement more than one commands; say, a group of related commands
* (e.g. delete left/delete right). Because of this, the command name is
* passed to each method.
*
* @param aCommandName the name of the command for which we want the enabled
* state.
* @param aCommandRefCon a cookie held by the nsIControllerCommandManager,
* allowing the command to get some context information.
* The contents of this cookie are implementation-defined.
*/
boolean isCommandEnabled(in DOMString aCommandName, in nsISupports aCommandRefCon);
/**
* Execute the name command.
*
* @param aCommandName the name of the command to execute.
*
* @param aCommandRefCon a cookie held by the nsIControllerCommandManager,
* allowing the command to get some context information.
* The contents of this cookie are implementation-defined.
*/
void doCommand(in DOMString aCommandName, in nsISupports aCommandRefCon);
};
/**
* nsIStatefulControllerCommand
*
* An extension of the basic nsIControllerCommand interface, for commands
* that have to update state (e.g. "bold" in an editor). Note that the
* implementation of the command *must* be stateless (since a given command
* can be shared between clients of the controller command manager). State
* must be stored/update via the refCon.
*/
[scriptable, uuid(78ad2381-1ae6-11d4-9f7e-a6d3f6dffffc)]
interface nsIStateUpdatingControllerCommand : nsISupports
{
/**
* Update the state of the named command.
*
* @param aCommandName the name of the command for which we want to update state.
*
* @param aCommandRefCon a cookie held by the nsIControllerCommandManager,
* allowing the command to get some context information.
* The contents of this cookie are implementation-defined.
*/
void updateCommandState(in DOMString aCommandName, in nsISupports aCommandRefCon);
};
/**
* nsIControllerCommandManager
*
* An interface via which a controller can maintain a series of commands,
* and efficiently dispatch commands to their respective handlers.
*
* Controllers that use an nsIControllerCommandManager should support
* nsIInterfaceRequestor, and be able to return an interface to their
* controller command manager via getInterface().
*
*/
[scriptable, uuid(65a2f51a-1dd2-11b2-889f-d886b255ffe7)]
interface nsIControllerCommandManager : nsISupports
{
/**
* Register and unregister commands with the command manager.
*
* @param aCommandName the name of the command under which to register or
* unregister the given command handler.
*
* @param aCommand the handler for this command.
*/
void registerCommand(in DOMString aCommandName, in nsIControllerCommand aCommand);
void unregisterCommand(in DOMString aCommandName, in nsIControllerCommand aCommand);
/**
* Find the command handler which has been registered to handle the named command.
*
* @param aCommandName the name of the command to find the handler for.
*/
nsIControllerCommand findCommandHandler(in DOMString aCommandName);
/**
* Get whether the named command is enabled.
*
* @param aCommandName the name of the command to test
* @param aCommandRefCon the command context data
*/
boolean isCommandEnabled(in DOMString aCommandName, in nsISupports aCommandRefCon);
/**
* Tell the command to udpate its state (if it is a state updating command)
*
* @param aCommandName the name of the command to update
* @param aCommandRefCon the command context data
*/
void updateCommandState(in DOMString aCommandName, in nsISupports aCommandRefCon);
/**
* Get whether the named command is supported.
*
* @param aCommandName the name of the command to test
* @param aCommandRefCon the command context data
*/
boolean supportsCommand(in DOMString aCommandName, in nsISupports aCommandRefCon);
/**
* Execute the named command.
*
* @param aCommandName the name of the command to execute
* @param aCommandRefCon the command context data
*/
void doCommand(in DOMString aCommandName, in nsISupports aCommandRefCon);
};
%{C++
nsresult
NS_NewControllerCommandManager(nsIControllerCommandManager** aResult);
%}