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/*
* Copyright (C) 2015 Ericsson 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 Ericsson 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
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef PeerConnectionBackend_h
#define PeerConnectionBackend_h
#if ENABLE(MEDIA_STREAM)
#include "JSDOMPromise.h"
#include "PeerConnectionStates.h"
namespace WebCore {
class DOMError;
class Event;
class MediaStreamTrack;
class PeerConnectionBackend;
class RTCAnswerOptions;
class RTCConfiguration;
class RTCIceCandidate;
class RTCOfferOptions;
class RTCRtpSender;
class RTCSessionDescription;
class RTCStatsResponse;
class ScriptExecutionContext;
namespace PeerConnection {
typedef DOMPromise<RefPtr<RTCSessionDescription>, RefPtr<DOMError>> SessionDescriptionPromise;
typedef DOMPromise<std::nullptr_t, RefPtr<DOMError>> VoidPromise;
typedef DOMPromise<RefPtr<RTCStatsResponse>, RefPtr<DOMError>> StatsPromise;
}
class PeerConnectionBackendClient {
public:
virtual Vector<RefPtr<RTCRtpSender>> getSenders() const = 0;
virtual void fireEvent(Event&) = 0;
virtual void setSignalingState(PeerConnectionStates::SignalingState) = 0;
virtual void updateIceGatheringState(PeerConnectionStates::IceGatheringState) = 0;
virtual void updateIceConnectionState(PeerConnectionStates::IceConnectionState) = 0;
virtual void scheduleNegotiationNeededEvent() = 0;
virtual ScriptExecutionContext* scriptExecutionContext() const = 0;
virtual PeerConnectionStates::SignalingState internalSignalingState() const = 0;
virtual PeerConnectionStates::IceGatheringState internalIceGatheringState() const = 0;
virtual PeerConnectionStates::IceConnectionState internalIceConnectionState() const = 0;
virtual ~PeerConnectionBackendClient() { }
};
typedef std::unique_ptr<PeerConnectionBackend> (*CreatePeerConnectionBackend)(PeerConnectionBackendClient*);
class PeerConnectionBackend {
public:
WEBCORE_EXPORT static CreatePeerConnectionBackend create;
virtual ~PeerConnectionBackend() { }
virtual void createOffer(RTCOfferOptions&, PeerConnection::SessionDescriptionPromise&&) = 0;
virtual void createAnswer(RTCAnswerOptions&, PeerConnection::SessionDescriptionPromise&&) = 0;
virtual void setLocalDescription(RTCSessionDescription&, PeerConnection::VoidPromise&&) = 0;
virtual RefPtr<RTCSessionDescription> localDescription() const = 0;
virtual RefPtr<RTCSessionDescription> currentLocalDescription() const = 0;
virtual RefPtr<RTCSessionDescription> pendingLocalDescription() const = 0;
virtual void setRemoteDescription(RTCSessionDescription&, PeerConnection::VoidPromise&&) = 0;
virtual RefPtr<RTCSessionDescription> remoteDescription() const = 0;
virtual RefPtr<RTCSessionDescription> currentRemoteDescription() const = 0;
virtual RefPtr<RTCSessionDescription> pendingRemoteDescription() const = 0;
virtual void setConfiguration(RTCConfiguration&) = 0;
virtual void addIceCandidate(RTCIceCandidate&, PeerConnection::VoidPromise&&) = 0;
virtual void getStats(MediaStreamTrack*, PeerConnection::StatsPromise&&) = 0;
virtual void replaceTrack(RTCRtpSender&, MediaStreamTrack&, PeerConnection::VoidPromise&&) = 0;
virtual void stop() = 0;
virtual bool isNegotiationNeeded() const = 0;
virtual void markAsNeedingNegotiation() = 0;
virtual void clearNegotiationNeededState() = 0;
};
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)
#endif // PeerConnectionBackend_h
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