Split the mediastream module in Blink into mediastream and peerconnection

third_party/WebKit/Source/modules/mediastream/RTCDTMFSender.cpp

-/*
- * Copyright (C) 2013 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 GOOGLE INC. ``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 GOOGLE INC. 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.
- */
-
-#include "modules/mediastream/RTCDTMFSender.h"
-
-#include "bindings/core/v8/ExceptionMessages.h"
-#include "bindings/core/v8/ExceptionState.h"
-#include "core/dom/ExceptionCode.h"
-#include "core/dom/ExecutionContext.h"
-#include "modules/mediastream/MediaStreamTrack.h"
-#include "modules/mediastream/RTCDTMFToneChangeEvent.h"
-#include "public/platform/WebMediaStreamTrack.h"
-#include "public/platform/WebRTCDTMFSenderHandler.h"
-#include "public/platform/WebRTCPeerConnectionHandler.h"
-#include "wtf/PtrUtil.h"
-#include <memory>
-
-namespace blink {
-
-static const int minToneDurationMs = 70;
-static const int defaultToneDurationMs = 100;
-static const int maxToneDurationMs = 6000;
-static const int minInterToneGapMs = 50;
-static const int defaultInterToneGapMs = 50;
-
-RTCDTMFSender* RTCDTMFSender::create(ExecutionContext* context, WebRTCPeerConnectionHandler* peerConnectionHandler, MediaStreamTrack* track, ExceptionState& exceptionState)
-{
-    std::unique_ptr<WebRTCDTMFSenderHandler> handler = wrapUnique(peerConnectionHandler->createDTMFSender(track->component()));
-    if (!handler) {
-        exceptionState.throwDOMException(NotSupportedError, "The MediaStreamTrack provided is not an element of a MediaStream that's currently in the local streams set.");
-        return nullptr;
-    }
-
-    RTCDTMFSender* dtmfSender = new RTCDTMFSender(context, track, std::move(handler));
-    dtmfSender->suspendIfNeeded();
-    return dtmfSender;
-}
-
-RTCDTMFSender::RTCDTMFSender(ExecutionContext* context, MediaStreamTrack* track, std::unique_ptr<WebRTCDTMFSenderHandler> handler)
-    : ActiveDOMObject(context)
-    , m_track(track)
-    , m_duration(defaultToneDurationMs)
-    , m_interToneGap(defaultInterToneGapMs)
-    , m_handler(std::move(handler))
-    , m_stopped(false)
-    , m_scheduledEventTimer(this, &RTCDTMFSender::scheduledEventTimerFired)
-{
-    ThreadState::current()->registerPreFinalizer(this);
-    m_handler->setClient(this);
-}
-
-RTCDTMFSender::~RTCDTMFSender()
-{
-}
-
-void RTCDTMFSender::dispose()
-{
-    // Promptly clears a raw reference from content/ to an on-heap object
-    // so that content/ doesn't access it in a lazy sweeping phase.
-    m_handler->setClient(nullptr);
-    m_handler.reset();
-}
-
-bool RTCDTMFSender::canInsertDTMF() const
-{
-    return m_handler->canInsertDTMF();
-}
-
-MediaStreamTrack* RTCDTMFSender::track() const
-{
-    return m_track.get();
-}
-
-String RTCDTMFSender::toneBuffer() const
-{
-    return m_handler->currentToneBuffer();
-}
-
-void RTCDTMFSender::insertDTMF(const String& tones, ExceptionState& exceptionState)
-{
-    insertDTMF(tones, defaultToneDurationMs, defaultInterToneGapMs, exceptionState);
-}
-
-void RTCDTMFSender::insertDTMF(const String& tones, int duration, ExceptionState& exceptionState)
-{
-    insertDTMF(tones, duration, defaultInterToneGapMs, exceptionState);
-}
-
-void RTCDTMFSender::insertDTMF(const String& tones, int duration, int interToneGap, ExceptionState& exceptionState)
-{
-    if (!canInsertDTMF()) {
-        exceptionState.throwDOMException(NotSupportedError, "The 'canInsertDTMF' attribute is false: this sender cannot send DTMF.");
-        return;
-    }
-
-    if (duration > maxToneDurationMs || duration < minToneDurationMs) {
-        exceptionState.throwDOMException(SyntaxError, ExceptionMessages::indexOutsideRange("duration", duration, minToneDurationMs, ExceptionMessages::ExclusiveBound, maxToneDurationMs, ExceptionMessages::ExclusiveBound));
-        return;
-    }
-
-    if (interToneGap < minInterToneGapMs) {
-        exceptionState.throwDOMException(SyntaxError, ExceptionMessages::indexExceedsMinimumBound("intertone gap", interToneGap, minInterToneGapMs));
-        return;
-    }
-
-    m_duration = duration;
-    m_interToneGap = interToneGap;
-
-    if (!m_handler->insertDTMF(tones, m_duration, m_interToneGap))
-        exceptionState.throwDOMException(SyntaxError, "Could not send provided tones, '" + tones + "'.");
-}
-
-void RTCDTMFSender::didPlayTone(const WebString& tone)
-{
-    scheduleDispatchEvent(RTCDTMFToneChangeEvent::create(tone));
-}
-
-const AtomicString& RTCDTMFSender::interfaceName() const
-{
-    return EventTargetNames::RTCDTMFSender;
-}
-
-ExecutionContext* RTCDTMFSender::getExecutionContext() const
-{
-    return ActiveDOMObject::getExecutionContext();
-}
-
-void RTCDTMFSender::stop()
-{
-    m_stopped = true;
-    m_handler->setClient(nullptr);
-}
-
-void RTCDTMFSender::scheduleDispatchEvent(Event* event)
-{
-    m_scheduledEvents.append(event);
-
-    if (!m_scheduledEventTimer.isActive())
-        m_scheduledEventTimer.startOneShot(0, BLINK_FROM_HERE);
-}
-
-void RTCDTMFSender::scheduledEventTimerFired(Timer<RTCDTMFSender>*)
-{
-    if (m_stopped)
-        return;
-
-    HeapVector<Member<Event>> events;
-    events.swap(m_scheduledEvents);
-
-    HeapVector<Member<Event>>::iterator it = events.begin();
-    for (; it != events.end(); ++it)
-        dispatchEvent((*it).release());
-}
-
-DEFINE_TRACE(RTCDTMFSender)
-{
-    visitor->trace(m_track);
-    visitor->trace(m_scheduledEvents);
-    EventTargetWithInlineData::trace(visitor);
-    ActiveDOMObject::trace(visitor);
-}
-
-} // namespace blink