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/*
* Copyright (C) 2017 Apple Inc.
*
* 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 "LibWebRTCDataChannelHandler.h"
#if USE(LIBWEBRTC)
#include "RTCDataChannel.h"
#include <wtf/MainThread.h>
namespace WebCore {
LibWebRTCDataChannelHandler::~LibWebRTCDataChannelHandler()
{
if (m_client)
m_channel->UnregisterObserver();
}
void LibWebRTCDataChannelHandler::setClient(RTCDataChannelHandlerClient* client)
{
m_client = client;
if (m_client)
m_channel->RegisterObserver(this);
else
m_channel->UnregisterObserver();
}
bool LibWebRTCDataChannelHandler::sendStringData(const String& text)
{
return m_channel->Send({rtc::CopyOnWriteBuffer(text.utf8().data(), text.length()), false});
}
bool LibWebRTCDataChannelHandler::sendRawData(const char* data, size_t length)
{
return m_channel->Send({rtc::CopyOnWriteBuffer(data, length), true});
}
void LibWebRTCDataChannelHandler::close()
{
m_channel->Close();
}
void LibWebRTCDataChannelHandler::OnStateChange()
{
RTCDataChannel::ReadyState state;
switch (m_channel->state()) {
case webrtc::DataChannelInterface::kConnecting:
state = RTCDataChannel::ReadyStateConnecting;
break;
case webrtc::DataChannelInterface::kOpen:
state = RTCDataChannel::ReadyStateOpen;
break;
case webrtc::DataChannelInterface::kClosing:
state = RTCDataChannel::ReadyStateClosing;
break;
case webrtc::DataChannelInterface::kClosed:
state = RTCDataChannel::ReadyStateClosed;
break;
}
ASSERT(m_client);
callOnMainThread([protectedClient = makeRef(*m_client), state] {
protectedClient->didChangeReadyState(state);
});
}
void LibWebRTCDataChannelHandler::OnMessage(const webrtc::DataBuffer& buffer)
{
ASSERT(m_client);
std::unique_ptr<webrtc::DataBuffer> protectedBuffer(new webrtc::DataBuffer(buffer));
callOnMainThread([protectedClient = makeRef(*m_client), buffer = WTFMove(protectedBuffer)] {
// FIXME: Ensure this is correct by adding some tests with non-ASCII characters.
const char* data = reinterpret_cast<const char*>(buffer->data.data());
if (buffer->binary)
protectedClient->didReceiveRawData(data, buffer->size());
else
protectedClient->didReceiveStringData(String(data, buffer->size()));
});
}
void LibWebRTCDataChannelHandler::OnBufferedAmountChange(uint64_t previousAmount)
{
if (previousAmount <= m_channel->buffered_amount())
return;
ASSERT(m_client);
callOnMainThread([protectedClient = makeRef(*m_client)] {
protectedClient->bufferedAmountIsDecreasing();
});
}
} // namespace WebCore
#endif // USE(LIBWEBRTC)
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