Move MediaStream and MediaStreamTrack implementation from modules/mediastream to core/mediastream.

Source/modules/mediastream/RTCDataChannel.cpp

-/*
- * Copyright (C) 2012 Google 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 "modules/mediastream/RTCDataChannel.h"
-
-#include "bindings/core/v8/ExceptionState.h"
-#include "core/dom/ExceptionCode.h"
-#include "core/dom/ExecutionContext.h"
-#include "core/events/MessageEvent.h"
-#include "core/fileapi/Blob.h"
-#include "modules/mediastream/RTCPeerConnection.h"
-#include "public/platform/WebRTCPeerConnectionHandler.h"
-#include "wtf/ArrayBuffer.h"
-#include "wtf/ArrayBufferView.h"
-
-namespace blink {
-
-static void throwNotOpenException(ExceptionState& exceptionState)
-{
-    exceptionState.throwDOMException(InvalidStateError, "RTCDataChannel.readyState is not 'open'");
-}
-
-static void throwCouldNotSendDataException(ExceptionState& exceptionState)
-{
-    exceptionState.throwDOMException(NetworkError, "Could not send data");
-}
-
-static void throwNoBlobSupportException(ExceptionState& exceptionState)
-{
-    exceptionState.throwDOMException(NotSupportedError, "Blob support not implemented yet");
-}
-
-RTCDataChannel* RTCDataChannel::create(ExecutionContext* context, RTCPeerConnection* connection, PassOwnPtr<WebRTCDataChannelHandler> handler)
-{
-    ASSERT(handler);
-    return new RTCDataChannel(context, connection, handler);
-}
-
-RTCDataChannel* RTCDataChannel::create(ExecutionContext* context, RTCPeerConnection* connection, WebRTCPeerConnectionHandler* peerConnectionHandler, const String& label, const WebRTCDataChannelInit& init, ExceptionState& exceptionState)
-{
-    OwnPtr<WebRTCDataChannelHandler> handler = adoptPtr(peerConnectionHandler->createDataChannel(label, init));
-    if (!handler) {
-        exceptionState.throwDOMException(NotSupportedError, "RTCDataChannel is not supported");
-        return nullptr;
-    }
-    return new RTCDataChannel(context, connection, handler.release());
-}
-
-RTCDataChannel::RTCDataChannel(ExecutionContext* context, RTCPeerConnection* connection, PassOwnPtr<WebRTCDataChannelHandler> handler)
-    : m_executionContext(context)
-    , m_handler(handler)
-    , m_stopped(false)
-    , m_readyState(ReadyStateConnecting)
-    , m_binaryType(BinaryTypeArrayBuffer)
-    , m_scheduledEventTimer(this, &RTCDataChannel::scheduledEventTimerFired)
-    , m_connection(connection)
-{
-    m_handler->setClient(this);
-}
-
-RTCDataChannel::~RTCDataChannel()
-{
-    // If the peer connection and the data channel die in the same
-    // GC cycle stop has not been called and we need to notify the
-    // client that the channel is gone.
-    if (!m_stopped)
-        m_handler->setClient(0);
-}
-
-String RTCDataChannel::label() const
-{
-    return m_handler->label();
-}
-
-bool RTCDataChannel::reliable() const
-{
-    return m_handler->isReliable();
-}
-
-bool RTCDataChannel::ordered() const
-{
-    return m_handler->ordered();
-}
-
-unsigned short RTCDataChannel::maxRetransmitTime() const
-{
-    return m_handler->maxRetransmitTime();
-}
-
-unsigned short RTCDataChannel::maxRetransmits() const
-{
-    return m_handler->maxRetransmits();
-}
-
-String RTCDataChannel::protocol() const
-{
-    return m_handler->protocol();
-}
-
-bool RTCDataChannel::negotiated() const
-{
-    return m_handler->negotiated();
-}
-
-unsigned short RTCDataChannel::id() const
-{
-    return m_handler->id();
-}
-
-String RTCDataChannel::readyState() const
-{
-    switch (m_readyState) {
-    case ReadyStateConnecting:
-        return "connecting";
-    case ReadyStateOpen:
-        return "open";
-    case ReadyStateClosing:
-        return "closing";
-    case ReadyStateClosed:
-        return "closed";
-    }
-
-    ASSERT_NOT_REACHED();
-    return String();
-}
-
-unsigned long RTCDataChannel::bufferedAmount() const
-{
-    return m_handler->bufferedAmount();
-}
-
-String RTCDataChannel::binaryType() const
-{
-    switch (m_binaryType) {
-    case BinaryTypeBlob:
-        return "blob";
-    case BinaryTypeArrayBuffer:
-        return "arraybuffer";
-    }
-    ASSERT_NOT_REACHED();
-    return String();
-}
-
-void RTCDataChannel::setBinaryType(const String& binaryType, ExceptionState& exceptionState)
-{
-    if (binaryType == "blob")
-        throwNoBlobSupportException(exceptionState);
-    else if (binaryType == "arraybuffer")
-        m_binaryType = BinaryTypeArrayBuffer;
-    else
-        exceptionState.throwDOMException(TypeMismatchError, "Unknown binary type : " + binaryType);
-}
-
-void RTCDataChannel::send(const String& data, ExceptionState& exceptionState)
-{
-    if (m_readyState != ReadyStateOpen) {
-        throwNotOpenException(exceptionState);
-        return;
-    }
-    if (!m_handler->sendStringData(data)) {
-        // FIXME: This should not throw an exception but instead forcefully close the data channel.
-        throwCouldNotSendDataException(exceptionState);
-    }
-}
-
-void RTCDataChannel::send(PassRefPtr<ArrayBuffer> prpData, ExceptionState& exceptionState)
-{
-    if (m_readyState != ReadyStateOpen) {
-        throwNotOpenException(exceptionState);
-        return;
-    }
-
-    RefPtr<ArrayBuffer> data = prpData;
-
-    size_t dataLength = data->byteLength();
-    if (!dataLength)
-        return;
-
-    if (!m_handler->sendRawData(static_cast<const char*>((data->data())), dataLength)) {
-        // FIXME: This should not throw an exception but instead forcefully close the data channel.
-        throwCouldNotSendDataException(exceptionState);
-    }
-}
-
-void RTCDataChannel::send(PassRefPtr<ArrayBufferView> data, ExceptionState& exceptionState)
-{
-    if (!m_handler->sendRawData(static_cast<const char*>(data->baseAddress()), data->byteLength())) {
-        // FIXME: This should not throw an exception but instead forcefully close the data channel.
-        throwCouldNotSendDataException(exceptionState);
-    }
-}
-
-void RTCDataChannel::send(Blob* data, ExceptionState& exceptionState)
-{
-    // FIXME: implement
-    throwNoBlobSupportException(exceptionState);
-}
-
-void RTCDataChannel::close()
-{
-    if (m_stopped)
-        return;
-
-    m_handler->close();
-}
-
-void RTCDataChannel::didChangeReadyState(WebRTCDataChannelHandlerClient::ReadyState newState)
-{
-    if (m_stopped || m_readyState == ReadyStateClosed)
-        return;
-
-    m_readyState = newState;
-
-    switch (m_readyState) {
-    case ReadyStateOpen:
-        scheduleDispatchEvent(Event::create(EventTypeNames::open));
-        break;
-    case ReadyStateClosed:
-        scheduleDispatchEvent(Event::create(EventTypeNames::close));
-        break;
-    default:
-        break;
-    }
-}
-
-void RTCDataChannel::didReceiveStringData(const WebString& text)
-{
-    if (m_stopped)
-        return;
-
-    scheduleDispatchEvent(MessageEvent::create(text));
-}
-
-void RTCDataChannel::didReceiveRawData(const char* data, size_t dataLength)
-{
-    if (m_stopped)
-        return;
-
-    if (m_binaryType == BinaryTypeBlob) {
-        // FIXME: Implement.
-        return;
-    }
-    if (m_binaryType == BinaryTypeArrayBuffer) {
-        RefPtr<ArrayBuffer> buffer = ArrayBuffer::create(data, dataLength);
-        scheduleDispatchEvent(MessageEvent::create(buffer.release()));
-        return;
-    }
-    ASSERT_NOT_REACHED();
-}
-
-void RTCDataChannel::didDetectError()
-{
-    if (m_stopped)
-        return;
-
-    scheduleDispatchEvent(Event::create(EventTypeNames::error));
-}
-
-const AtomicString& RTCDataChannel::interfaceName() const
-{
-    return EventTargetNames::RTCDataChannel;
-}
-
-ExecutionContext* RTCDataChannel::executionContext() const
-{
-    return m_executionContext;
-}
-
-void RTCDataChannel::stop()
-{
-    m_stopped = true;
-    m_readyState = ReadyStateClosed;
-    m_handler->setClient(0);
-    m_executionContext = 0;
-}
-
-void RTCDataChannel::scheduleDispatchEvent(PassRefPtrWillBeRawPtr<Event> event)
-{
-    m_scheduledEvents.append(event);
-
-    if (!m_scheduledEventTimer.isActive())
-        m_scheduledEventTimer.startOneShot(0, FROM_HERE);
-}
-
-void RTCDataChannel::scheduledEventTimerFired(Timer<RTCDataChannel>*)
-{
-    if (m_stopped)
-        return;
-
-    WillBeHeapVector<RefPtrWillBeMember<Event> > events;
-    events.swap(m_scheduledEvents);
-
-    WillBeHeapVector<RefPtrWillBeMember<Event> >::iterator it = events.begin();
-    for (; it != events.end(); ++it)
-        dispatchEvent((*it).release());
-
-    events.clear();
-}
-
-void RTCDataChannel::clearWeakMembers(Visitor* visitor)
-{
-    if (visitor->isAlive(m_connection))
-        return;
-    stop();
-    m_connection = nullptr;
-}
-
-void RTCDataChannel::trace(Visitor* visitor)
-{
-    visitor->trace(m_scheduledEvents);
-    visitor->registerWeakMembers<RTCDataChannel, &RTCDataChannel::clearWeakMembers>(this);
-    EventTargetWithInlineData::trace(visitor);
-}
-
-} // namespace blink