/* -*- Mode: IDL; 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"

interface nsIDOMWindow;

[scriptable, builtinclass, uuid(323e5472-b8f4-4288-b1b9-53c7c54bbbe8)]
interface nsIAudioChannelService : nsISupports
{
  float getAudioChannelVolume(in nsIDOMWindow window,
                              in unsigned short audioChannel);

  void setAudioChannelVolume(in nsIDOMWindow window,
                             in unsigned short audioChannel,
                             in float volume);

  boolean getAudioChannelMuted(in nsIDOMWindow window,
                               in unsigned short audioChannel);

  void setAudioChannelMuted(in nsIDOMWindow window,
                            in unsigned short audioChannel,
                            in boolean muted);

  boolean isAudioChannelActive(in nsIDOMWindow window,
                               in unsigned short audioChannel);
};