gecko/dom/interfaces/html/nsIDOMHTMLMediaElement.idl

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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 "nsIDOMHTMLElement.idl"
#include "nsIDOMMediaError.idl"
#include "nsIDOMTimeRanges.idl"

interface nsIDOMMediaStream;

/**
 * The nsIDOMHTMLMediaElement interface is an interface to be implemented by the HTML
 * <audio> and <video> elements.
 *
 * For more information on this interface, please see
 * http://www.whatwg.org/specs/web-apps/current-work/#htmlmediaelement
 *
 * @status UNDER_DEVELOPMENT
 */

// undef the GetCurrentTime macro defined in WinBase.h from the MS Platform SDK
%{C++
#ifdef GetCurrentTime
#undef GetCurrentTime
#endif
%}

[scriptable, uuid(d9331886-3928-11e2-b0e1-10bf48d64bd4)]
interface nsIDOMHTMLMediaElement : nsIDOMHTMLElement
{
  // error state
  readonly attribute nsIDOMMediaError error;

  // network state
           attribute DOMString src;
  [implicit_jscontext] attribute jsval mozSrcObject;
  readonly attribute DOMString currentSrc;
           attribute DOMString crossorigin;
  const unsigned short NETWORK_EMPTY = 0;
  const unsigned short NETWORK_IDLE = 1;
  const unsigned short NETWORK_LOADING = 2;
  const unsigned short NETWORK_NO_SOURCE = 3;
  readonly attribute unsigned short networkState;
           attribute DOMString preload;
  readonly attribute nsIDOMTimeRanges buffered;
  void load();
  DOMString canPlayType(in DOMString type);

  // ready state
  const unsigned short HAVE_NOTHING = 0;
  const unsigned short HAVE_METADATA = 1;
  const unsigned short HAVE_CURRENT_DATA = 2;
  const unsigned short HAVE_FUTURE_DATA = 3;
  const unsigned short HAVE_ENOUGH_DATA = 4;
  readonly attribute unsigned short readyState;
  readonly attribute boolean seeking;

  // playback state
           attribute double currentTime;
  readonly attribute double initialTime;
  readonly attribute double duration;
  readonly attribute boolean paused;
           attribute double defaultPlaybackRate;
           attribute double playbackRate;
           attribute boolean mozPreservesPitch;
  readonly attribute nsIDOMTimeRanges played;
  readonly attribute nsIDOMTimeRanges seekable;
  readonly attribute boolean ended;
  readonly attribute boolean mozAutoplayEnabled;
           attribute boolean autoplay;
           attribute boolean loop;
  void play();
  void pause();

  // controls
           attribute boolean controls;
           attribute double volume;
           attribute boolean muted;
           attribute boolean defaultMuted;

  // Mozilla extension: stream capture
  nsIDOMMediaStream mozCaptureStream();
  nsIDOMMediaStream mozCaptureStreamUntilEnded();
  readonly attribute boolean mozAudioCaptured;

  // Mozilla extension: extra stream metadata information, used as part
  // of MozAudioAvailable events and the mozWriteAudio() method.  The
  // mozFrameBufferLength method allows for the size of the framebuffer
  // used within MozAudioAvailable events to be changed.  The new size must
  // be between 512 and 16384.  The default size, for a  media element with
  // audio is (mozChannels * 1024).
  readonly attribute unsigned long mozChannels;
  readonly attribute unsigned long mozSampleRate;
           attribute unsigned long mozFrameBufferLength;

  // Mozilla extension: return embedded metadata from the stream as a
  // JSObject with key:value pairs for each tag. This can be used by
  // player interfaces to display the song title, artist, etc.
  [implicit_jscontext]
  jsval mozGetMetadata();

  // Mozilla extension: load data from another media element. This is like
  // load() but we don't run the resource selection algorithm; instead
  // we just set our source to other's currentSrc. This is optimized
  // so that this element will get access to all of other's cached/
  // buffered data. In fact any future data downloaded by this element or
  // other will be sharable by both elements.
  void mozLoadFrom(in nsIDOMHTMLMediaElement other);

  // Mozilla extension: provides access to the fragment end time if
  // the media element has a fragment URI for the currentSrc, otherwise
  // it is equal to the media duration.
  readonly attribute double mozFragmentEnd;

   // Mozilla extension: an audio channel type for media elements.
   // An exception is thrown if the app tries to change the audio channel type
   // without the permission (manifest file for B2G apps).
   // The supported values are:
   // * normal (default value)
   //   Automatically paused if "notification" or higher priority channel
   //   is played
   //   Use case: normal applications
   // * content
   //   Automatically paused if "notification" or higher priority channel
   //   is played. Also paused if another app starts using "content"
   //   channel. Using this channel never affects applications using
   //   the "normal" channel.
   //   Use case: video/audio players
   // * notification
   //   Automatically paused if "alarm" or higher priority channel is played.
   //   Use case: New email, incoming SMS
   // * alarm
   //   Automatically paused if "telephony" or higher priority channel is
   //   played.
   //   User case: Alarm clock, calendar alarms
   // * telephony
   //   Automatically paused if "ringer" or higher priority
   //   channel is played.
   //   Use case: dialer, voip
   // * ringer
   //   Automatically paused if "publicnotification" or higher priority
   //   channel is played.
   //   Use case: dialer, voip
   // * publicnotification
   //   Always plays in speaker, even when headphones are plugged in.
   //   Use case: Camera shutter sound.
   attribute DOMString mozAudioChannelType;

  // In addition the media element has this new events:
  // * onmozinterruptbegin - called when the media element is interrupted
  //   because of the audiochannel manager.
  // * onmozinterruptend - called when the interruption is concluded
};