Source/modules/mediastream/RTCSessionDescriptionRequestImpl.cpp

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
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 * 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.
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 *    notice, this list of conditions and the following disclaimer
 *    in the documentation and/or other materials provided with the
 *    distribution.
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 *    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
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#include "config.h"

#include "modules/mediastream/RTCSessionDescriptionRequestImpl.h"

#include "modules/mediastream/RTCErrorCallback.h"
#include "modules/mediastream/RTCPeerConnection.h"
#include "modules/mediastream/RTCSessionDescription.h"
#include "modules/mediastream/RTCSessionDescriptionCallback.h"
#include "public/platform/WebRTCSessionDescription.h"
#include "wtf/RefPtr.h"

namespace blink {

RTCSessionDescriptionRequestImpl* RTCSessionDescriptionRequestImpl::create(ExecutionContext* context, RTCPeerConnection* requester, RTCSessionDescriptionCallback* successCallback, RTCErrorCallback* errorCallback)
{
    RTCSessionDescriptionRequestImpl* request = new RTCSessionDescriptionRequestImpl(context, requester, successCallback, errorCallback);
    request->suspendIfNeeded();
    return request;
}

RTCSessionDescriptionRequestImpl::RTCSessionDescriptionRequestImpl(ExecutionContext* context, RTCPeerConnection* requester, RTCSessionDescriptionCallback* successCallback, RTCErrorCallback* errorCallback)
    : ActiveDOMObject(context)
    , m_successCallback(successCallback)
    , m_errorCallback(errorCallback)
    , m_requester(requester)
{
    ASSERT(m_requester);
}

RTCSessionDescriptionRequestImpl::~RTCSessionDescriptionRequestImpl()
{
}

void RTCSessionDescriptionRequestImpl::requestSucceeded(const WebRTCSessionDescription& webSessionDescription)
{
    bool shouldFireCallback = m_requester ? m_requester->shouldFireDefaultCallbacks() : false;
    if (shouldFireCallback && m_successCallback)
        m_successCallback->handleEvent(RTCSessionDescription::create(webSessionDescription));
    clear();
}

void RTCSessionDescriptionRequestImpl::requestFailed(const String& error)
{
    bool shouldFireCallback = m_requester ? m_requester->shouldFireDefaultCallbacks() : false;
    if (shouldFireCallback && m_errorCallback)
        m_errorCallback->handleEvent(error);

    clear();
}

void RTCSessionDescriptionRequestImpl::stop()
{
    clear();
}

void RTCSessionDescriptionRequestImpl::clear()
{
    m_successCallback.clear();
    m_errorCallback.clear();
    m_requester.clear();
}

void RTCSessionDescriptionRequestImpl::trace(Visitor* visitor)
{
    visitor->trace(m_successCallback);
    visitor->trace(m_errorCallback);
    visitor->trace(m_requester);
    RTCSessionDescriptionRequest::trace(visitor);
}

} // namespace blink