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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISupports.idl"
#include "nsIObserver.idl"
#include "nsICommandParams.idl"
interface mozIDOMWindowProxy;
%{C++
class nsCommandManager;
%}
/*
* nsICommandManager is an interface used to executing user-level commands,
* and getting the state of available commands.
*
* Commands are identified by strings, which are documented elsewhere.
* In addition, the list of required and optional parameters for
* each command, that are passed in via the nsICommandParams, are
* also documented elsewhere. (Where? Need a good location for this).
*/
[scriptable, builtinclass, uuid(bb5a1730-d83b-4fa2-831b-35b9d5842e84)]
interface nsICommandManager : nsISupports
{
/*
* Register an observer on the specified command. The observer's Observe
* method will get called when the state (enabled/disabled, or toggled etc)
* of the command changes.
*
* You can register the same observer on multiple commmands by calling this
* multiple times.
*/
void addCommandObserver(in nsIObserver aCommandObserver,
in string aCommandToObserve);
/*
* Stop an observer from observering the specified command. If the observer
* was also registered on ther commands, they will continue to be observed.
*
* Passing an empty string in 'aCommandObserved' will remove the observer
* from all commands.
*/
void removeCommandObserver(in nsIObserver aCommandObserver,
in string aCommandObserved);
/*
* Ask the command manager if the specified command is supported.
* If aTargetWindow is null, the focused window is used.
*
*/
boolean isCommandSupported(in string aCommandName,
in mozIDOMWindowProxy aTargetWindow);
/*
* Ask the command manager if the specified command is currently.
* enabled.
* If aTargetWindow is null, the focused window is used.
*/
boolean isCommandEnabled(in string aCommandName,
in mozIDOMWindowProxy aTargetWindow);
/*
* Get the state of the specified commands.
*
* On input: aCommandParams filled in with values that the caller cares
* about, most of which are command-specific (see the command documentation
* for details). One boolean value, "enabled", applies to all commands,
* and, in return will be set to indicate whether the command is enabled
* (equivalent to calling isCommandEnabled).
*
* aCommandName is the name of the command that needs the state
* aTargetWindow is the source of command controller
* (null means use focus controller)
* On output: aCommandParams: values set by the caller filled in with
* state from the command.
*/
void getCommandState(in string aCommandName,
in mozIDOMWindowProxy aTargetWindow,
/* inout */ in nsICommandParams aCommandParams);
/*
* Execute the specified command.
* The command will be executed in aTargetWindow if it is specified.
* If aTargetWindow is null, it will go to the focused window.
*
* param: aCommandParams, a list of name-value pairs of command parameters,
* may be null for parameter-less commands.
*
*/
[can_run_script]
void doCommand(in string aCommandName,
in nsICommandParams aCommandParams,
in mozIDOMWindowProxy aTargetWindow);
%{C++
/**
* In order to avoid circular dependency issues, these methods are defined
* in nsCommandManager.h. Consumers need to #include that header.
*/
inline nsCommandManager* AsCommandManager();
inline const nsCommandManager* AsCommandManager() const;
%}
};
/*
Arguments to observers "Observe" method are as follows:
void Observe( in nsISupports aSubject, // The nsICommandManager calling this Observer
in string aTopic, // Name of the command
in wstring aDummy ); // unused
*/