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/*
* Copyright (C) 2017 Apple Inc. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
*/
#include "config.h"
#include "RTCIceTransport.h"
#if ENABLE(WEB_RTC)
#include "Event.h"
#include "EventNames.h"
#include "RTCPeerConnection.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(RTCIceTransport);
Ref<RTCIceTransport> RTCIceTransport::create(ScriptExecutionContext& context, UniqueRef<RTCIceTransportBackend>&& backend, RTCPeerConnection& connection)
{
auto result = adoptRef(*new RTCIceTransport(context, WTFMove(backend), connection));
result->suspendIfNeeded();
return result;
}
RTCIceTransport::RTCIceTransport(ScriptExecutionContext& context, UniqueRef<RTCIceTransportBackend>&& backend, RTCPeerConnection& connection)
: ActiveDOMObject(&context)
, m_backend(WTFMove(backend))
, m_connection(connection)
{
m_backend->registerClient(*this);
}
RTCIceTransport::~RTCIceTransport()
{
m_backend->unregisterClient();
}
void RTCIceTransport::stop()
{
m_isStopped = true;
m_transportState = RTCIceTransportState::Closed;
}
bool RTCIceTransport::virtualHasPendingActivity() const
{
return m_transportState != RTCIceTransportState::Closed && hasEventListeners();
}
void RTCIceTransport::onStateChanged(RTCIceTransportState state)
{
queueTaskKeepingObjectAlive(*this, TaskSource::Networking, [this, state]() mutable {
if (m_isStopped)
return;
if (m_transportState == state)
return;
m_transportState = state;
if (m_connection)
m_connection->processIceTransportStateChange(*this);
});
}
void RTCIceTransport::onGatheringStateChanged(RTCIceGatheringState state)
{
queueTaskKeepingObjectAlive(*this, TaskSource::Networking, [this, state]() mutable {
if (m_isStopped)
return;
if (m_gatheringState == state)
return;
m_gatheringState = state;
dispatchEvent(Event::create(eventNames().gatheringstatechangeEvent, Event::CanBubble::Yes, Event::IsCancelable::No));
});
}
void RTCIceTransport::onSelectedCandidatePairChanged(RefPtr<RTCIceCandidate>&& local, RefPtr<RTCIceCandidate>&& remote)
{
queueTaskKeepingObjectAlive(*this, TaskSource::Networking, [this, local = WTFMove(local), remote = WTFMove(remote)]() mutable {
if (m_isStopped)
return;
m_selectedCandidatePair = CandidatePair { WTFMove(local), WTFMove(remote) };
dispatchEvent(Event::create(eventNames().selectedcandidatepairchangeEvent, Event::CanBubble::Yes, Event::IsCancelable::No));
});
}
std::optional<RTCIceTransport::CandidatePair> RTCIceTransport::getSelectedCandidatePair()
{
if (m_transportState == RTCIceTransportState::Closed)
return { };
ASSERT(m_transportState != RTCIceTransportState::New || !m_selectedCandidatePair);
return m_selectedCandidatePair;
}
} // namespace WebCore
#endif // ENABLE(WEB_RTC)
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