/* -*- 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 mozIDOMWindowProxy;

[scriptable, builtinclass, uuid(5cb24dbc-36c7-46a4-9966-ac73141dc795)]
interface nsIAudioChannelService : nsISupports
{
  float getAudioChannelVolume(in mozIDOMWindowProxy window,
                              in unsigned short audioChannel);

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

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

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

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