/*
 * Copyright (C) 2012 Google AB. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer
 *    in the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name of Google Inc. nor the names of its contributors
 *    may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef RTCPeerConnectionHandlerClient_h
#define RTCPeerConnectionHandlerClient_h

#if ENABLE(MEDIA_STREAM)

#include <wtf/PassRefPtr.h>

namespace WebCore {

class MediaStreamDescriptor;
class RTCDataChannelDescriptor;
class RTCIceCandidateDescriptor;

class RTCPeerConnectionHandlerClient {
public:
    enum SignalingState {
        SignalingStateStable = 1,
        SignalingStateHaveLocalOffer = 2,
        SignalingStateHaveRemoteOffer = 3,
        SignalingStateHaveLocalPrAnswer = 4,
        SignalingStateHaveRemotePrAnswer = 5,
        SignalingStateClosed = 6,
    };

    enum IceConnectionState {
        IceConnectionStateStarting = 1,
        IceConnectionStateChecking = 2,
        IceConnectionStateConnected = 3,
        IceConnectionStateCompleted = 4,
        IceConnectionStateFailed = 5,
        IceConnectionStateDisconnected = 6,
        IceConnectionStateClosed = 7
    };

    enum IceGatheringState {
        IceGatheringStateNew = 1,
        IceGatheringStateGathering = 2,
        IceGatheringStateComplete = 3
    };

    virtual ~RTCPeerConnectionHandlerClient() { }

    virtual void negotiationNeeded() = 0;
    virtual void didGenerateIceCandidate(PassRefPtr<RTCIceCandidateDescriptor>) = 0;
    virtual void didChangeSignalingState(SignalingState) = 0;
    virtual void didChangeIceGatheringState(IceGatheringState) = 0;
	virtual void didChangeIceConnectionState(IceConnectionState) = 0;
    virtual void didAddRemoteStream(PassRefPtr<MediaStreamDescriptor>) = 0;
    virtual void didRemoveRemoteStream(MediaStreamDescriptor*) = 0;

    // RTCDataChannel.
    virtual void didAddRemoteDataChannel(PassRefPtr<RTCDataChannelDescriptor>) = 0;
};

} // namespace WebCore

#endif // ENABLE(MEDIA_STREAM)

#endif // RTCPeerConnectionHandlerClient_h
