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/*
* 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 "config.h"
#include "RTCDTMFSender.h"
#if ENABLE(WEB_RTC_DTMF)
#include "MediaStreamTrack.h"
#include "RTCDTMFSenderHandler.h"
#include "RTCDTMFToneChangeEvent.h"
#include "ScriptExecutionContext.h"
namespace WebCore {
static const long minToneDurationMs = 40;
static const long defaultToneDurationMs = 100;
static const long maxToneDurationMs = 6000;
static const long minInterToneGapMs = 30;
static const long defaultInterToneGapMs = 70;
RTCDTMFSender::RTCDTMFSender(ScriptExecutionContext& context, RefPtr<MediaStreamTrack>&& track)
: ActiveDOMObject(&context)
, m_track(WTFMove(track))
, m_duration(defaultToneDurationMs)
, m_interToneGap(defaultInterToneGapMs)
, m_stopped(false)
, m_scheduledEventTimer(*this, &RTCDTMFSender::scheduledEventTimerFired)
{
}
RTCDTMFSender::~RTCDTMFSender() = default;
bool RTCDTMFSender::canInsertDTMF() const
{
return false;
}
MediaStreamTrack* RTCDTMFSender::track() const
{
return m_track.get();
}
String RTCDTMFSender::toneBuffer() const
{
return { };
}
ExceptionOr<void> RTCDTMFSender::insertDTMF(const String&, std::optional<int> duration, std::optional<int> interToneGap)
{
if (!canInsertDTMF())
return Exception { NotSupportedError };
if (duration && (duration.value() > maxToneDurationMs || duration.value() < minToneDurationMs))
return Exception { SyntaxError };
if (interToneGap && interToneGap.value() < minInterToneGapMs)
return Exception { SyntaxError };
m_duration = duration.value_or(defaultToneDurationMs);
m_interToneGap = interToneGap.value_or(defaultInterToneGapMs);
return Exception { SyntaxError };
}
void RTCDTMFSender::didPlayTone(const String& tone)
{
scheduleDispatchEvent(RTCDTMFToneChangeEvent::create(tone));
}
void RTCDTMFSender::stop()
{
m_stopped = true;
}
const char* RTCDTMFSender::activeDOMObjectName() const
{
return "RTCDTMFSender";
}
bool RTCDTMFSender::canSuspendForDocumentSuspension() const
{
// FIXME: We should try and do better here.
return false;
}
void RTCDTMFSender::scheduleDispatchEvent(Ref<Event>&& event)
{
m_scheduledEvents.append(WTFMove(event));
if (!m_scheduledEventTimer.isActive())
m_scheduledEventTimer.startOneShot(0_s);
}
void RTCDTMFSender::scheduledEventTimerFired()
{
if (m_stopped)
return;
Vector<Ref<Event>> events;
events.swap(m_scheduledEvents);
for (auto& event : events)
dispatchEvent(event);
}
} // namespace WebCore
#endif // ENABLE(WEB_RTC)