/* -*- 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/.
 *
 * The origin of this IDL file is
 * http://dev.w3.org/2011/webrtc/editor/webrtc.html#idl-def-RTCPeerConnection
 */

callback RTCSessionDescriptionCallback = void (mozRTCSessionDescription sdp);
callback RTCPeerConnectionErrorCallback = void (DOMString errorInformation);
callback VoidFunction = void ();
callback RTCStatsCallback = void (RTCStatsReport report);

enum RTCSignalingState {
    "stable",
    "have-local-offer",
    "have-remote-offer",
    "have-local-pranswer",
    "have-remote-pranswer",
    "closed"
};

enum RTCIceGatheringState {
    "new",
    "gathering",
    "complete"
};

enum RTCIceConnectionState {
    "new",
    "checking",
    "connected",
    "completed",
    "failed",
    "disconnected",
    "closed"
};

dictionary RTCDataChannelInit {
  boolean         ordered = true;
  unsigned short? maxRetransmitTime = null;
  unsigned short? maxRetransmits = null;
  DOMString       protocol = "";
  boolean         negotiated = false; // spec currently says 'true'; we disagree
  unsigned short? id = null;

  // these are deprecated due to renaming in the spec, but still supported for Fx22
  boolean outOfOrderAllowed; // now ordered, and the default changes to keep behavior the same
  unsigned short maxRetransmitNum; // now maxRetransmits
  boolean preset; // now negotiated
  unsigned short stream; // now id
};

// Misnomer dictionaries housing PeerConnection-specific constraints.
//
// Important! Do not ever add members that might need tracing (e.g. object)
// to MediaConstraintSet or any dictionary marked XxxInternal here

dictionary MediaConstraintSet {
  boolean OfferToReceiveAudio;
  boolean OfferToReceiveVideo;
  boolean MozDontOfferDataChannel;
};

// MediaConstraint = single-property-subset of MediaConstraintSet
// Implemented as full set. Test Object.keys(pair).length == 1

// typedef MediaConstraintSet MediaConstraint; // TODO: Bug 913053

dictionary MediaConstraints {
  object mandatory; // so we can see unknown + unsupported constraints
  sequence<MediaConstraintSet> _optional; // a.k.a. MediaConstraint
};

dictionary MediaConstraintsInternal {
  MediaConstraintSet mandatory; // holds only supported constraints
  sequence<MediaConstraintSet> _optional; // a.k.a. MediaConstraint
};

interface RTCDataChannel;

[Pref="media.peerconnection.enabled",
 JSImplementation="@mozilla.org/dom/peerconnection;1",
 Constructor (optional RTCConfiguration configuration,
              optional object? constraints)]
// moz-prefixed until sufficiently standardized.
interface mozRTCPeerConnection : EventTarget  {
  void createOffer (RTCSessionDescriptionCallback successCallback,
                    RTCPeerConnectionErrorCallback failureCallback,
                    optional MediaConstraints constraints);
  void createAnswer (RTCSessionDescriptionCallback successCallback,
                     RTCPeerConnectionErrorCallback failureCallback,
                     optional MediaConstraints constraints);
  void setLocalDescription (mozRTCSessionDescription description,
                            optional VoidFunction successCallback,
                            optional RTCPeerConnectionErrorCallback failureCallback);
  void setRemoteDescription (mozRTCSessionDescription description,
                             optional VoidFunction successCallback,
                             optional RTCPeerConnectionErrorCallback failureCallback);
  readonly attribute mozRTCSessionDescription? localDescription;
  readonly attribute mozRTCSessionDescription? remoteDescription;
  readonly attribute RTCSignalingState signalingState;
  void updateIce (optional RTCConfiguration configuration,
                  optional MediaConstraints constraints);
  void addIceCandidate (mozRTCIceCandidate candidate,
                        optional VoidFunction successCallback,
                        optional RTCPeerConnectionErrorCallback failureCallback);
  readonly attribute RTCIceGatheringState iceGatheringState;
  readonly attribute RTCIceConnectionState iceConnectionState;
  sequence<MediaStream> getLocalStreams ();
  sequence<MediaStream> getRemoteStreams ();
  MediaStream? getStreamById (DOMString streamId);
  void addStream (MediaStream stream, optional MediaConstraints constraints);
  void removeStream (MediaStream stream);
  void close ();
  attribute EventHandler onnegotiationneeded;
  attribute EventHandler onicecandidate;
  attribute EventHandler onsignalingstatechange;
  attribute EventHandler onaddstream;
  attribute EventHandler onremovestream;
  attribute EventHandler oniceconnectionstatechange;

  void getStats (MediaStreamTrack? selector,
                 RTCStatsCallback successCallback,
                 RTCPeerConnectionErrorCallback failureCallback);

  [ChromeOnly]
  void getStatsInternal (MediaStreamTrack? selector,
                         RTCStatsCallback successCallback,
                         RTCPeerConnectionErrorCallback failureCallback);

  // Data channel.
  RTCDataChannel createDataChannel (DOMString label,
                                    optional RTCDataChannelInit dataChannelDict);
  attribute EventHandler ondatachannel;
  attribute EventHandler onconnection;
  attribute EventHandler onclosedconnection;
};

callback RTCLogCallback = void (sequence<DOMString> logMessages);

[JSImplementation="@mozilla.org/dom/webrtcglobalinformation;1",
 ChromeOnly,
 Constructor ()]
interface WebrtcGlobalInformation {
    void getAllStats(RTCStatsCallback callback,
                     RTCPeerConnectionErrorCallback errorCallback);
    void getCandPairLogs(DOMString candPairId,
                         RTCLogCallback callback,
                         RTCPeerConnectionErrorCallback errorCallback);
};